odin-lang.Odin/vendor/raylib/raylib.odin

/*
Package vendor:raylib implements bindings for version 5.0 of the raylib library (https://www.raylib.com/)

	*********************************************************************************************
	*
	*   raylib v5.0 - A simple and easy-to-use library to enjoy videogames programming (www.raylib.com)
	*
	*   FEATURES:
	*       - NO external dependencies, all required libraries included with raylib
	*       - Multiplatform: Windows, Linux, FreeBSD, OpenBSD, NetBSD, DragonFly,
	*                        MacOS, Haiku, Android, Raspberry Pi, DRM native, HTML5.
	*       - Written in plain C code (C99) in PascalCase/camelCase notation
	*       - Hardware accelerated with OpenGL (1.1, 2.1, 3.3, 4.3 or ES2 - choose at compile)
	*       - Unique OpenGL abstraction layer (usable as standalone module): [rlgl]
	*       - Multiple Fonts formats supported (TTF, XNA fonts, AngelCode fonts)
	*       - Outstanding texture formats support, including compressed formats (DXT, ETC, ASTC)
	*       - Full 3d support for 3d Shapes, Models, Billboards, Heightmaps and more!
	*       - Flexible Materials system, supporting classic maps and PBR maps
	*       - Animated 3D models supported (skeletal bones animation) (IQM)
	*       - Shaders support, including Model shaders and Postprocessing shaders
	*       - Powerful math module for Vector, Matrix and Quaternion operations: [raymath]
	*       - Audio loading and playing with streaming support (WAV, OGG, MP3, FLAC, XM, MOD)
	*       - VR stereo rendering with configurable HMD device parameters
	*       - Bindings to multiple programming languages available!
	*
	*   NOTES:
	*       - One default Font is loaded on InitWindow()->LoadFontDefault() [core, text]
	*       - One default Texture2D is loaded on rlglInit(), 1x1 white pixel R8G8B8A8 [rlgl] (OpenGL 3.3 or ES2)
	*       - One default Shader is loaded on rlglInit()->rlLoadShaderDefault() [rlgl] (OpenGL 3.3 or ES2)
	*       - One default RenderBatch is loaded on rlglInit()->rlLoadRenderBatch() [rlgl] (OpenGL 3.3 or ES2)
	*
	*   DEPENDENCIES (included):
	*       [rcore] rglfw (Camilla Löwy - github.com/glfw/glfw) for window/context management and input (PLATFORM_DESKTOP)
	*       [rlgl] glad (David Herberth - github.com/Dav1dde/glad) for OpenGL 3.3 extensions loading (PLATFORM_DESKTOP)
	*       [raudio] miniaudio (David Reid - github.com/mackron/miniaudio) for audio device/context management
	*
	*   OPTIONAL DEPENDENCIES (included):
	*       [rcore] msf_gif (Miles Fogle) for GIF recording
	*       [rcore] sinfl (Micha Mettke) for DEFLATE decompression algorithm
	*       [rcore] sdefl (Micha Mettke) for DEFLATE compression algorithm
	*       [rtextures] stb_image (Sean Barret) for images loading (BMP, TGA, PNG, JPEG, HDR...)
	*       [rtextures] stb_image_write (Sean Barret) for image writing (BMP, TGA, PNG, JPG)
	*       [rtextures] stb_image_resize (Sean Barret) for image resizing algorithms
	*       [rtext] stb_truetype (Sean Barret) for ttf fonts loading
	*       [rtext] stb_rect_pack (Sean Barret) for rectangles packing
	*       [rmodels] par_shapes (Philip Rideout) for parametric 3d shapes generation
	*       [rmodels] tinyobj_loader_c (Syoyo Fujita) for models loading (OBJ, MTL)
	*       [rmodels] cgltf (Johannes Kuhlmann) for models loading (glTF)
	*       [rmodels] Model3D (bzt) for models loading (M3D, https://bztsrc.gitlab.io/model3d)
	*       [raudio] dr_wav (David Reid) for WAV audio file loading
	*       [raudio] dr_flac (David Reid) for FLAC audio file loading
	*       [raudio] dr_mp3 (David Reid) for MP3 audio file loading
	*       [raudio] stb_vorbis (Sean Barret) for OGG audio loading
	*       [raudio] jar_xm (Joshua Reisenauer) for XM audio module loading
	*       [raudio] jar_mod (Joshua Reisenauer) for MOD audio module loading
	*
	*
	*   LICENSE: zlib/libpng
	*
	*   raylib is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
	*   BSD-like license that allows static linking with closed source software:
	*
	*   Copyright (c) 2013-2023 Ramon Santamaria (@raysan5)
	*
	*   This software is provided "as-is", without any express or implied warranty. In no event
	*   will the authors be held liable for any damages arising from the use of this software.
	*
	*   Permission is granted to anyone to use this software for any purpose, including commercial
	*   applications, and to alter it and redistribute it freely, subject to the following restrictions:
	*
	*     1. The origin of this software must not be misrepresented; you must not claim that you
	*     wrote the original software. If you use this software in a product, an acknowledgment
	*     in the product documentation would be appreciated but is not required.
	*
	*     2. Altered source versions must be plainly marked as such, and must not be misrepresented
	*     as being the original software.
	*
	*     3. This notice may not be removed or altered from any source distribution.
	*
	*********************************************************************************************
*/
package raylib

import "core:c"
import "core:fmt"
import "core:mem"
import "core:strings"

import "core:math/linalg"
_ :: linalg

MAX_TEXTFORMAT_BUFFERS :: #config(RAYLIB_MAX_TEXTFORMAT_BUFFERS, 4)
MAX_TEXT_BUFFER_LENGTH :: #config(RAYLIB_MAX_TEXT_BUFFER_LENGTH, 1024)

#assert(size_of(rune) == size_of(c.int))

RAYLIB_SHARED :: #config(RAYLIB_SHARED, false)

when ODIN_OS == .Windows {
	@(extra_linker_flags="/NODEFAULTLIB:" + ("msvcrt" when RAYLIB_SHARED else "libcmt"))
	foreign import lib {
		"windows/raylibdll.lib" when RAYLIB_SHARED else "windows/raylib.lib" ,
		"system:Winmm.lib",
		"system:Gdi32.lib",
		"system:User32.lib",
		"system:Shell32.lib",
	}
} else when ODIN_OS == .Linux  {
	foreign import lib {
		// Note(bumbread): I'm not sure why in `linux/` folder there are
		// multiple copies of raylib.so, but since these bindings are for
		// particular version of the library, I better specify it. Ideally,
		// though, it's best specified in terms of major (.so.4)
		"linux/libraylib.so.500" when RAYLIB_SHARED else "linux/libraylib.a",
		"system:dl",
		"system:pthread",
	}
} else when ODIN_OS == .Darwin {
	foreign import lib {
		"macos" +
			("-arm64" when ODIN_ARCH == .arm64 else "") +
			"/libraylib" + (".500.dylib" when RAYLIB_SHARED else ".a"),
		"system:Cocoa.framework",
		"system:OpenGL.framework",
		"system:IOKit.framework",
	}
} else {
	foreign import lib "system:raylib"
}

VERSION_MAJOR :: 5
VERSION_MINOR :: 0
VERSION_PATCH :: 0
VERSION :: "5.0"

PI :: 3.14159265358979323846 
DEG2RAD :: PI/180.0
RAD2DEG :: 180.0/PI


// Some Basic Colors
// NOTE: Custom raylib color palette for amazing visuals on WHITE background
LIGHTGRAY  :: Color{ 200, 200, 200, 255 }   // Light Gray
GRAY       :: Color{ 130, 130, 130, 255 }   // Gray
DARKGRAY   :: Color{ 80, 80, 80, 255 }      // Dark Gray
YELLOW     :: Color{ 253, 249, 0, 255 }     // Yellow
GOLD       :: Color{ 255, 203, 0, 255 }     // Gold
ORANGE     :: Color{ 255, 161, 0, 255 }     // Orange
PINK       :: Color{ 255, 109, 194, 255 }   // Pink
RED        :: Color{ 230, 41, 55, 255 }     // Red
MAROON     :: Color{ 190, 33, 55, 255 }     // Maroon
GREEN      :: Color{ 0, 228, 48, 255 }      // Green
LIME       :: Color{ 0, 158, 47, 255 }      // Lime
DARKGREEN  :: Color{ 0, 117, 44, 255 }      // Dark Green
SKYBLUE    :: Color{ 102, 191, 255, 255 }   // Sky Blue
BLUE       :: Color{ 0, 121, 241, 255 }     // Blue
DARKBLUE   :: Color{ 0, 82, 172, 255 }      // Dark Blue
PURPLE     :: Color{ 200, 122, 255, 255 }   // Purple
VIOLET     :: Color{ 135, 60, 190, 255 }    // Violet
DARKPURPLE :: Color{ 112, 31, 126, 255 }    // Dark Purple
BEIGE      :: Color{ 211, 176, 131, 255 }   // Beige
BROWN      :: Color{ 127, 106, 79, 255 }    // Brown
DARKBROWN  :: Color{ 76, 63, 47, 255 }      // Dark Brown

WHITE      :: Color{ 255, 255, 255, 255 }   // White
BLACK      :: Color{ 0, 0, 0, 255 }         // Black
BLANK      :: Color{ 0, 0, 0, 0 }           // Blank (Transparent)
MAGENTA    :: Color{ 255, 0, 255, 255 }     // Magenta
RAYWHITE   :: Color{ 245, 245, 245, 255 }   // My own White (raylib logo)

// Vector2 type
Vector2 :: [2]f32
// Vector3 type
Vector3 :: [3]f32
// Vector4 type
Vector4 :: [4]f32

// Quaternion type
Quaternion :: quaternion128

// Matrix type (right handed, stored row major)
Matrix :: #row_major matrix[4, 4]f32


// Color, 4 components, R8G8B8A8 (32bit)
//
// Note: In Raylib this is a struct. But here we use a fixed array, so that .rgba swizzling etc work.
Color :: distinct [4]u8

// Rectangle type
Rectangle :: struct {
	x:      f32,                  // Rectangle top-left corner position x
	y:      f32,                  // Rectangle top-left corner position y
	width:  f32,                  // Rectangle width
	height: f32,                  // Rectangle height
}

// Image type, bpp always RGBA (32bit)
// NOTE: Data stored in CPU memory (RAM)
Image :: struct {
	data:    rawptr,              // Image raw data
	width:   c.int,               // Image base width
	height:  c.int,               // Image base height
	mipmaps: c.int,               // Mipmap levels, 1 by default
	format:  PixelFormat,         // Data format (PixelFormat type)
}

// Texture type
// NOTE: Data stored in GPU memory
Texture :: struct {
	id:      c.uint,              // OpenGL texture id
	width:   c.int,               // Texture base width
	height:  c.int,               // Texture base height
	mipmaps: c.int,               // Mipmap levels, 1 by default
	format:  PixelFormat,         // Data format (PixelFormat type)
}

// Texture2D type, same as Texture
Texture2D :: Texture

// TextureCubemap type, actually, same as Texture
TextureCubemap :: Texture

// RenderTexture type, for texture rendering
RenderTexture :: struct {
	id:       c.uint,             // OpenGL framebuffer object id
	texture: Texture,             // Color buffer attachment texture
	depth:   Texture,             // Depth buffer attachment texture
} 

// RenderTexture2D type, same as RenderTexture
RenderTexture2D :: RenderTexture

// N-Patch layout info
NPatchInfo :: struct {
	source: Rectangle,            // Texture source rectangle
	left:   c.int,                // Left border offset
	top:    c.int,                // Top border offset
	right:  c.int,                // Right border offset
	bottom: c.int,                // Bottom border offset
	layout: NPatchLayout,         // Layout of the n-patch: 3x3, 1x3 or 3x1
}

// Font character info
GlyphInfo :: struct {
	value:    rune,               // Character value (Unicode)
	offsetX:  c.int,              // Character offset X when drawing
	offsetY:  c.int,              // Character offset Y when drawing
	advanceX: c.int,              // Character advance position X
	image:    Image,              // Character image data
} 

// Font type, includes texture and charSet array data
Font :: struct {
	baseSize:     c.int,          // Base size (default chars height)
	glyphCount:   c.int,          // Number of characters
	glyphPadding: c.int,          // Padding around the chars
	texture:      Texture2D,      // Characters texture atlas
	recs:         [^]Rectangle,   // Characters rectangles in texture
	glyphs:       [^]GlyphInfo,    // Characters info data
}

// Camera type, defines a camera position/orientation in 3d space
Camera3D :: struct {
	position: Vector3,            // Camera position
	target:   Vector3,            // Camera target it looks-at
	up:       Vector3,            // Camera up vector (rotation over its axis)
	fovy:     f32,                // Camera field-of-view apperture in Y (degrees) in perspective, used as near plane width in orthographic
	projection: CameraProjection, // Camera projection: CAMERA_PERSPECTIVE or CAMERA_ORTHOGRAPHIC
}

Camera :: Camera3D                    // Camera type fallback, defaults to Camera3D

// Camera2D type, defines a 2d camera
Camera2D :: struct {
	offset:   Vector2,            // Camera offset (displacement from target)
	target:   Vector2,            // Camera target (rotation and zoom origin)
	rotation: f32,                // Camera rotation in degrees
	zoom:     f32,                // Camera zoom (scaling), should be 1.0f by default
}

// Vertex data defining a mesh
// NOTE: Data stored in CPU memory (and GPU)
Mesh :: struct {
	vertexCount:   c.int,         // Number of vertices stored in arrays
	triangleCount: c.int,         // Number of triangles stored (indexed or not)

	// Default vertex data
	vertices:   [^]f32,           // Vertex position (XYZ - 3 components per vertex) (shader-location = 0)
	texcoords:  [^]f32,           // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1)
	texcoords2: [^]f32,           // Vertex second texture coordinates (useful for lightmaps) (shader-location = 5)
	normals:    [^]f32,           // Vertex normals (XYZ - 3 components per vertex) (shader-location = 2)
	tangents:   [^]f32,           // Vertex tangents (XYZW - 4 components per vertex) (shader-location = 4)
	colors:     [^]u8,            // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3)
	indices:    [^]u16,           // Vertex indices (in case vertex data comes indexed)

	// Animation vertex data
	animVertices: [^]f32,         // Animated vertex positions (after bones transformations)
	animNormals:  [^]f32,         // Animated normals (after bones transformations)
	boneIds:      [^]u8,          // Vertex bone ids, up to 4 bones influence by vertex (skinning)
	boneWeights:  [^]f32,         // Vertex bone weight, up to 4 bones influence by vertex (skinning)

	// OpenGL identifiers
	vaoId: u32,                   // OpenGL Vertex Array Object id
	vboId: [^]u32,                // OpenGL Vertex Buffer Objects id (default vertex data)
}

// Shader type (generic)
Shader :: struct {
	id:   c.uint,                 // Shader program id
	locs: [^]c.int,               // Shader locations array (MAX_SHADER_LOCATIONS)
}

// Material texture map
MaterialMap :: struct {
	texture: Texture2D,           // Material map texture
	color:   Color,               // Material map color
	value:   f32,                 // Material map value
}

// Material type (generic)
Material :: struct {
	shader: Shader,               // Material shader
	maps:   [^]MaterialMap,       // Material maps array (MAX_MATERIAL_MAPS)
	params: [4]f32,               // Material generic parameters (if required)
}

// Transformation properties
Transform :: struct {
	translation: Vector3,         // Translation
	rotation:    Quaternion,      // Rotation
	scale:       Vector3,         // Scale
}

// Bone information
BoneInfo :: struct {
	name:   [32]byte `fmt:"s,0"`, // Bone name
	parent: c.int,                // Bone parent
}

// Model type
Model :: struct #align(align_of(uintptr)) {
	transform: Matrix,            // Local transform matrix

	meshCount: c.int,             // Number of meshes
	materialCount: c.int,         // Number of materials
	meshes:       [^]Mesh,        // Meshes array
	materials:    [^]Material,    // Materials array
	meshMaterial: [^]c.int,       // Mesh material number

	// Animation data
	boneCount: c.int,             // Number of bones
	bones:     [^]BoneInfo,       // Bones information (skeleton)
	bindPose:  [^]Transform,      // Bones base transformation (pose)
}

// Model animation
ModelAnimation :: struct {
	boneCount:  c.int,            // Number of bones
	frameCount: c.int,            // Number of animation frames
	bones:      [^]BoneInfo,      // Bones information (skeleton)
	framePoses: [^][^]Transform,  // Poses array by frame
	name:       [32]byte,           // Animation name
}

// Ray type (useful for raycast)
Ray :: struct {
	position:  Vector3,           // Ray position (origin)
	direction: Vector3,           // Ray direction
}

// RayCollision, ray hit information
RayCollision :: struct {
	hit:      bool,               // Did the ray hit something?
	distance: f32,                // Distance to nearest hit
	point:    Vector3,            // Point of nearest hit
	normal:   Vector3,            // Surface normal of hit
}

// Bounding box type
BoundingBox :: struct {
	min: Vector3,                 // Minimum vertex box-corner
	max: Vector3,                 // Maximum vertex box-corner
}

// Wave type, defines audio wave data
Wave :: struct {
	frameCount: c.uint,           // Total number of frames (considering channels)
	sampleRate:  c.uint,          // Frequency (samples per second)
	sampleSize:  c.uint,          // Bit depth (bits per sample): 8, 16, 32 (24 not supported)
	channels:    c.uint,          // Number of channels (1-mono, 2-stereo)
	data:        rawptr,          // Buffer data pointer
}

// Audio stream type
// NOTE: Actual structs are defined internally in raudio module
AudioStream :: struct {
	buffer: rawptr,               // Pointer to internal data used by the audio system
	processor: rawptr,            // Pointer to internal data processor, useful for audio effects

	sampleRate: c.uint,           // Frequency (samples per second)
	sampleSize: c.uint,           // Bit depth (bits per sample): 8, 16, 32 (24 not supported)
	channels:   c.uint,           // Number of channels (1-mono, 2-stereo)
}

// Sound source type
Sound :: struct {
	using stream: AudioStream,    // Audio stream
	frameCount:  c.uint,          // Total number of frames (considering channels)
}

// Music stream type (audio file streaming from memory)
// NOTE: Anything longer than ~10 seconds should be streamed
Music :: struct {
	using stream: AudioStream,    // Audio stream
	frameCount:  c.uint,          // Total number of frames (considering channels)
	looping:      bool,           // Music looping enable

	ctxType: c.int,               // Type of music context (audio filetype)
	ctxData: rawptr,              // Audio context data, depends on type
}

// Head-Mounted-Display device parameters
VrDeviceInfo :: struct {
	hResolution:            c.int,    // Horizontal resolution in pixels
	vResolution:            c.int,    // Vertical resolution in pixels
	hScreenSize:            f32,      // Horizontal size in meters
	vScreenSize:            f32,      // Vertical size in meters
	eyeToScreenDistance:    f32,      // Distance between eye and display in meters
	lensSeparationDistance: f32,      // Lens separation distance in meters
	interpupillaryDistance: f32,      // IPD (distance between pupils) in meters
	lensDistortionValues:   [4]f32,   // Lens distortion constant parameters
	chromaAbCorrection:     [4]f32,   // Chromatic aberration correction parameters
}

// VR Stereo rendering configuration for simulator
VrStereoConfig :: struct #align(4) {
	projection:        [2]Matrix,     // VR projection matrices (per eye)
	viewOffset:        [2]Matrix,     // VR view offset matrices (per eye)
	leftLensCenter:    [2]f32,        // VR left lens center
	rightLensCenter:   [2]f32,        // VR right lens center
	leftScreenCenter:  [2]f32,        // VR left screen center
	rightScreenCenter: [2]f32,        // VR right screen center
	scale:             [2]f32,        // VR distortion scale
	scaleIn:           [2]f32,        // VR distortion scale in
}

// File path list
FilePathList :: struct {
    capacity: c.uint,                     // Filepaths max entries
    count:    c.uint,                     // Filepaths entries count
    paths:    [^]cstring,                 // Filepaths entries
}

// Automation event
AutomationEvent :: struct {
	frame:      c.uint,               // Event frame
	type:       c.uint,               // Event type (AutomationEventType)
	params:     [4]c.int,             // Event parameters (if required) ---
}

// Automation event list
AutomationEventList :: struct {
	capacity:   c.uint,                // Events max entries (MAX_AUTOMATION_EVENTS)
	count:      c.uint,                // Events entries count
	events:     [^]AutomationEvent,	   // Events entries
}

//----------------------------------------------------------------------------------
// Enumerators Definition
//----------------------------------------------------------------------------------
// System/Window config flags
// NOTE: Every bit registers one state (use it with bit masks)
// By default all flags are set to 0
ConfigFlag :: enum c.int {
	VSYNC_HINT               = 6,     // Set to try enabling V-Sync on GPU
	FULLSCREEN_MODE          = 1,     // Set to run program in fullscreen
	WINDOW_RESIZABLE         = 2,     // Set to allow resizable window
	WINDOW_UNDECORATED       = 3,     // Set to disable window decoration (frame and buttons)
	WINDOW_HIDDEN            = 7,     // Set to hide window
	WINDOW_MINIMIZED         = 9,     // Set to minimize window (iconify)
	WINDOW_MAXIMIZED         = 10,    // Set to maximize window (expanded to monitor)
	WINDOW_UNFOCUSED         = 11,    // Set to window non focused
	WINDOW_TOPMOST           = 12,    // Set to window always on top
	WINDOW_ALWAYS_RUN        = 8,     // Set to allow windows running while minimized
	WINDOW_TRANSPARENT       = 4,     // Set to allow transparent framebuffer
	WINDOW_HIGHDPI           = 13,    // Set to support HighDPI
	WINDOW_MOUSE_PASSTHROUGH = 14,    // Set to support mouse passthrough, only supported when FLAG_WINDOW_UNDECORATED
	BORDERLESS_WINDOWED_MODE = 15,    // Set to run program in borderless windowed mode
	MSAA_4X_HINT             = 5,     // Set to try enabling MSAA 4X
	INTERLACED_HINT          = 16,    // Set to try enabling interlaced video format (for V3D)
}
ConfigFlags :: distinct bit_set[ConfigFlag; c.int]


// Trace log level
TraceLogLevel :: enum c.int {
	ALL = 0,                          // Display all logs
	TRACE,                            // Trace logging, intended for internal use only
	DEBUG,                            // Debug logging, used for internal debugging, it should be disabled on release builds
	INFO,                             // Info logging, used for program execution info
	WARNING,                          // Warning logging, used on recoverable failures
	ERROR,                            // Error logging, used on unrecoverable failures
	FATAL,                            // Fatal logging, used to abort program: exit(EXIT_FAILURE)
	NONE,                             // Disable logging
}

// Keyboard keys (US keyboard layout)
// NOTE: Use GetKeyPressed() to allow redefining
// required keys for alternative layouts
KeyboardKey :: enum c.int {
	KEY_NULL         = 0,             // Key: NULL, used for no key pressed
	// Alphanumeric keys
	APOSTROPHE      = 39,             // Key: '
	COMMA           = 44,             // Key: ,
	MINUS           = 45,             // Key: -
	PERIOD          = 46,             // Key: .
	SLASH           = 47,             // Key: /
	ZERO            = 48,             // Key: 0
	ONE             = 49,             // Key: 1
	TWO             = 50,             // Key: 2
	THREE           = 51,             // Key: 3
	FOUR            = 52,             // Key: 4
	FIVE            = 53,             // Key: 5
	SIX             = 54,             // Key: 6
	SEVEN           = 55,             // Key: 7
	EIGHT           = 56,             // Key: 8
	NINE            = 57,             // Key: 9
	SEMICOLON       = 59,             // Key: ;
	EQUAL           = 61,             // Key: =
	A               = 65,             // Key: A | a
	B               = 66,             // Key: B | b
	C               = 67,             // Key: C | c
	D               = 68,             // Key: D | d
	E               = 69,             // Key: E | e
	F               = 70,             // Key: F | f
	G               = 71,             // Key: G | g
	H               = 72,             // Key: H | h
	I               = 73,             // Key: I | i
	J               = 74,             // Key: J | j
	K               = 75,             // Key: K | k
	L               = 76,             // Key: L | l
	M               = 77,             // Key: M | m
	N               = 78,             // Key: N | n
	O               = 79,             // Key: O | o
	P               = 80,             // Key: P | p
	Q               = 81,             // Key: Q | q
	R               = 82,             // Key: R | r
	S               = 83,             // Key: S | s
	T               = 84,             // Key: T | t
	U               = 85,             // Key: U | u
	V               = 86,             // Key: V | v
	W               = 87,             // Key: W | w
	X               = 88,             // Key: X | x
	Y               = 89,             // Key: Y | y
	Z               = 90,             // Key: Z | z
	LEFT_BRACKET    = 91,             // Key: [
	BACKSLASH       = 92,             // Key: '\'
	RIGHT_BRACKET   = 93,             // Key: ]
	GRAVE           = 96,             // Key: `
	// Function keys
	SPACE           = 32,             // Key: Space
	ESCAPE          = 256,            // Key: Esc
	ENTER           = 257,            // Key: Enter
	TAB             = 258,            // Key: Tab
	BACKSPACE       = 259,            // Key: Backspace
	INSERT          = 260,            // Key: Ins
	DELETE          = 261,            // Key: Del
	RIGHT           = 262,            // Key: Cursor right
	LEFT            = 263,            // Key: Cursor left
	DOWN            = 264,            // Key: Cursor down
	UP              = 265,            // Key: Cursor up
	PAGE_UP         = 266,            // Key: Page up
	PAGE_DOWN       = 267,            // Key: Page down
	HOME            = 268,            // Key: Home
	END             = 269,            // Key: End
	CAPS_LOCK       = 280,            // Key: Caps lock
	SCROLL_LOCK     = 281,            // Key: Scroll down
	NUM_LOCK        = 282,            // Key: Num lock
	PRINT_SCREEN    = 283,            // Key: Print screen
	PAUSE           = 284,            // Key: Pause
	F1              = 290,            // Key: F1
	F2              = 291,            // Key: F2
	F3              = 292,            // Key: F3
	F4              = 293,            // Key: F4
	F5              = 294,            // Key: F5
	F6              = 295,            // Key: F6
	F7              = 296,            // Key: F7
	F8              = 297,            // Key: F8
	F9              = 298,            // Key: F9
	F10             = 299,            // Key: F10
	F11             = 300,            // Key: F11
	F12             = 301,            // Key: F12
	LEFT_SHIFT      = 340,            // Key: Shift left
	LEFT_CONTROL    = 341,            // Key: Control left
	LEFT_ALT        = 342,            // Key: Alt left
	LEFT_SUPER      = 343,            // Key: Super left
	RIGHT_SHIFT     = 344,            // Key: Shift right
	RIGHT_CONTROL   = 345,            // Key: Control right
	RIGHT_ALT       = 346,            // Key: Alt right
	RIGHT_SUPER     = 347,            // Key: Super right
	KB_MENU         = 348,            // Key: KB menu
	// Keypad keys
	KP_0            = 320,            // Key: Keypad 0
	KP_1            = 321,            // Key: Keypad 1
	KP_2            = 322,            // Key: Keypad 2
	KP_3            = 323,            // Key: Keypad 3
	KP_4            = 324,            // Key: Keypad 4
	KP_5            = 325,            // Key: Keypad 5
	KP_6            = 326,            // Key: Keypad 6
	KP_7            = 327,            // Key: Keypad 7
	KP_8            = 328,            // Key: Keypad 8
	KP_9            = 329,            // Key: Keypad 9
	KP_DECIMAL      = 330,            // Key: Keypad .
	KP_DIVIDE       = 331,            // Key: Keypad /
	KP_MULTIPLY     = 332,            // Key: Keypad *
	KP_SUBTRACT     = 333,            // Key: Keypad -
	KP_ADD          = 334,            // Key: Keypad +
	KP_ENTER        = 335,            // Key: Keypad Enter
	KP_EQUAL        = 336,            // Key: Keypad =
	// Android key buttons
	BACK            = 4,              // Key: Android back button
	MENU            = 82,             // Key: Android menu button
	VOLUME_UP       = 24,             // Key: Android volume up button
	VOLUME_DOWN     = 25,             // Key: Android volume down button
}

// Mouse buttons
MouseButton :: enum c.int {
	LEFT    = 0,                      // Mouse button left
	RIGHT   = 1,                      // Mouse button right
	MIDDLE  = 2,                      // Mouse button middle (pressed wheel)
	SIDE    = 3,                      // Mouse button side (advanced mouse device)
	EXTRA   = 4,                      // Mouse button extra (advanced mouse device)
	FORWARD = 5,                      // Mouse button fordward (advanced mouse device)
	BACK    = 6,                      // Mouse button back (advanced mouse device)
}

// Mouse cursor
MouseCursor :: enum c.int {
	DEFAULT       = 0,                // Default pointer shape
	ARROW         = 1,                // Arrow shape
	IBEAM         = 2,                // Text writing cursor shape
	CROSSHAIR     = 3,                // Cross shape
	POINTING_HAND = 4,                // Pointing hand cursor
	RESIZE_EW     = 5,                // Horizontal resize/move arrow shape
	RESIZE_NS     = 6,                // Vertical resize/move arrow shape
	RESIZE_NWSE   = 7,                // Top-left to bottom-right diagonal resize/move arrow shape
	RESIZE_NESW   = 8,                // The top-right to bottom-left diagonal resize/move arrow shape
	RESIZE_ALL    = 9,                // The omnidirectional resize/move cursor shape
	NOT_ALLOWED   = 10,               // The operation-not-allowed shape
}

// Gamepad buttons
GamepadButton :: enum c.int {
	UNKNOWN = 0,                      // Unknown button, just for error checking
	LEFT_FACE_UP,                     // Gamepad left DPAD up button
	LEFT_FACE_RIGHT,                  // Gamepad left DPAD right button
	LEFT_FACE_DOWN,                   // Gamepad left DPAD down button
	LEFT_FACE_LEFT,                   // Gamepad left DPAD left button
	RIGHT_FACE_UP,                    // Gamepad right button up (i.e. PS3: Triangle, Xbox: Y)
	RIGHT_FACE_RIGHT,                 // Gamepad right button right (i.e. PS3: Square, Xbox: X)
	RIGHT_FACE_DOWN,                  // Gamepad right button down (i.e. PS3: Cross, Xbox: A)
	RIGHT_FACE_LEFT,                  // Gamepad right button left (i.e. PS3: Circle, Xbox: B)
	LEFT_TRIGGER_1,                   // Gamepad top/back trigger left (first), it could be a trailing button
	LEFT_TRIGGER_2,                   // Gamepad top/back trigger left (second), it could be a trailing button
	RIGHT_TRIGGER_1,                  // Gamepad top/back trigger right (one), it could be a trailing button
	RIGHT_TRIGGER_2,                  // Gamepad top/back trigger right (second), it could be a trailing button
	MIDDLE_LEFT,                      // Gamepad center buttons, left one (i.e. PS3: Select)
	MIDDLE,                           // Gamepad center buttons, middle one (i.e. PS3: PS, Xbox: XBOX)
	MIDDLE_RIGHT,                     // Gamepad center buttons, right one (i.e. PS3: Start)
	LEFT_THUMB,                       // Gamepad joystick pressed button left
	RIGHT_THUMB,                      // Gamepad joystick pressed button right
}

// Gamepad axis
GamepadAxis :: enum c.int {
	LEFT_X        = 0,                // Gamepad left stick X axis
	LEFT_Y        = 1,                // Gamepad left stick Y axis
	RIGHT_X       = 2,                // Gamepad right stick X axis
	RIGHT_Y       = 3,                // Gamepad right stick Y axis
	LEFT_TRIGGER  = 4,                // Gamepad back trigger left, pressure level: [1..-1]
	RIGHT_TRIGGER = 5,                // Gamepad back trigger right, pressure level: [1..-1]
}

// Material map index
MaterialMapIndex :: enum c.int {
	ALBEDO = 0,                       // Albedo material (same as: MATERIAL_MAP_DIFFUSE)
	METALNESS,                        // Metalness material (same as: MATERIAL_MAP_SPECULAR)
	NORMAL,                           // Normal material
	ROUGHNESS,                        // Roughness material
	OCCLUSION,                        // Ambient occlusion material
	EMISSION,                         // Emission material
	HEIGHT,                           // Heightmap material
	CUBEMAP,                          // Cubemap material (NOTE: Uses GL_TEXTURE_CUBE_MAP)
	IRRADIANCE,                       // Irradiance material (NOTE: Uses GL_TEXTURE_CUBE_MAP)
	PREFILTER,                        // Prefilter material (NOTE: Uses GL_TEXTURE_CUBE_MAP)
	BRDF,                             // Brdf material
}


// Shader location index
ShaderLocationIndex :: enum c.int {
	VERTEX_POSITION = 0,              // Shader location: vertex attribute: position
	VERTEX_TEXCOORD01,                // Shader location: vertex attribute: texcoord01
	VERTEX_TEXCOORD02,                // Shader location: vertex attribute: texcoord02
	VERTEX_NORMAL,                    // Shader location: vertex attribute: normal
	VERTEX_TANGENT,                   // Shader location: vertex attribute: tangent
	VERTEX_COLOR,                     // Shader location: vertex attribute: color
	MATRIX_MVP,                       // Shader location: matrix uniform: model-view-projection
	MATRIX_VIEW,                      // Shader location: matrix uniform: view (camera transform)
	MATRIX_PROJECTION,                // Shader location: matrix uniform: projection
	MATRIX_MODEL,                     // Shader location: matrix uniform: model (transform)
	MATRIX_NORMAL,                    // Shader location: matrix uniform: normal
	VECTOR_VIEW,                      // Shader location: vector uniform: view
	COLOR_DIFFUSE,                    // Shader location: vector uniform: diffuse color
	COLOR_SPECULAR,                   // Shader location: vector uniform: specular color
	COLOR_AMBIENT,                    // Shader location: vector uniform: ambient color
	MAP_ALBEDO,                       // Shader location: sampler2d texture: albedo (same as: SHADER_LOC_MAP_DIFFUSE)
	MAP_METALNESS,                    // Shader location: sampler2d texture: metalness (same as: SHADER_LOC_MAP_SPECULAR)
	MAP_NORMAL,                       // Shader location: sampler2d texture: normal
	MAP_ROUGHNESS,                    // Shader location: sampler2d texture: roughness
	MAP_OCCLUSION,                    // Shader location: sampler2d texture: occlusion
	MAP_EMISSION,                     // Shader location: sampler2d texture: emission
	MAP_HEIGHT,                       // Shader location: sampler2d texture: height
	MAP_CUBEMAP,                      // Shader location: samplerCube texture: cubemap
	MAP_IRRADIANCE,                   // Shader location: samplerCube texture: irradiance
	MAP_PREFILTER,                    // Shader location: samplerCube texture: prefilter
	MAP_BRDF,                         // Shader location: sampler2d texture: brdf
}


// Shader uniform data type
ShaderUniformDataType :: enum c.int {
	FLOAT = 0,                        // Shader uniform type: float
	VEC2,                             // Shader uniform type: vec2 (2 float)
	VEC3,                             // Shader uniform type: vec3 (3 float)
	VEC4,                             // Shader uniform type: vec4 (4 float)
	INT,                              // Shader uniform type: int
	IVEC2,                            // Shader uniform type: ivec2 (2 int)
	IVEC3,                            // Shader uniform type: ivec3 (3 int)
	IVEC4,                            // Shader uniform type: ivec4 (4 int)
	SAMPLER2D,                        // Shader uniform type: sampler2d
}

// Pixel formats
// NOTE: Support depends on OpenGL version and platform
PixelFormat :: enum c.int {
	UNKNOWN = 0,
	UNCOMPRESSED_GRAYSCALE = 1,       // 8 bit per pixel (no alpha)
	UNCOMPRESSED_GRAY_ALPHA,          // 8*2 bpp (2 channels)
	UNCOMPRESSED_R5G6B5,              // 16 bpp
	UNCOMPRESSED_R8G8B8,              // 24 bpp
	UNCOMPRESSED_R5G5B5A1,            // 16 bpp (1 bit alpha)
	UNCOMPRESSED_R4G4B4A4,            // 16 bpp (4 bit alpha)
	UNCOMPRESSED_R8G8B8A8,            // 32 bpp
	UNCOMPRESSED_R32,                 // 32 bpp (1 channel - float)
	UNCOMPRESSED_R32G32B32,           // 32*3 bpp (3 channels - float)
	UNCOMPRESSED_R32G32B32A32,        // 32*4 bpp (4 channels - float)
	UNCOMPRESSED_R16,                 // 16 bpp (1 channel - float)
	UNCOMPRESSED_R16G16B16,           // 16*3 bpp (3 channels - float)
	UNCOMPRESSED_R16G16B16A16,        // 16*4 bpp (4 channels - float)
	COMPRESSED_DXT1_RGB,              // 4 bpp (no alpha)
	COMPRESSED_DXT1_RGBA,             // 4 bpp (1 bit alpha)
	COMPRESSED_DXT3_RGBA,             // 8 bpp
	COMPRESSED_DXT5_RGBA,             // 8 bpp
	COMPRESSED_ETC1_RGB,              // 4 bpp
	COMPRESSED_ETC2_RGB,              // 4 bpp
	COMPRESSED_ETC2_EAC_RGBA,         // 8 bpp
	COMPRESSED_PVRT_RGB,              // 4 bpp
	COMPRESSED_PVRT_RGBA,             // 4 bpp
	COMPRESSED_ASTC_4x4_RGBA,         // 8 bpp
	COMPRESSED_ASTC_8x8_RGBA,         // 2 bpp
}

// Texture parameters: filter mode
// NOTE 1: Filtering considers mipmaps if available in the texture
// NOTE 2: Filter is accordingly set for minification and magnification
TextureFilter :: enum c.int {
	POINT = 0,                        // No filter, just pixel approximation
	BILINEAR,                         // Linear filtering
	TRILINEAR,                        // Trilinear filtering (linear with mipmaps)
	ANISOTROPIC_4X,                   // Anisotropic filtering 4x
	ANISOTROPIC_8X,                   // Anisotropic filtering 8x
	ANISOTROPIC_16X,                  // Anisotropic filtering 16x
}

// Texture parameters: wrap mode
TextureWrap :: enum c.int {
	REPEAT = 0,                       // Repeats texture in tiled mode
	CLAMP,                            // Clamps texture to edge pixel in tiled mode
	MIRROR_REPEAT,                    // Mirrors and repeats the texture in tiled mode
	MIRROR_CLAMP,                      // Mirrors and clamps to border the texture in tiled mode
}

// Cubemap layouts
CubemapLayout :: enum c.int {
	AUTO_DETECT = 0,                  // Automatically detect layout type
	LINE_VERTICAL,                    // Layout is defined by a vertical line with faces
	LINE_HORIZONTAL,                  // Layout is defined by an horizontal line with faces
	CROSS_THREE_BY_FOUR,              // Layout is defined by a 3x4 cross with cubemap faces
	CROSS_FOUR_BY_THREE,              // Layout is defined by a 4x3 cross with cubemap faces
	PANORAMA,                         // Layout is defined by a panorama image (equirectangular map)
}

// Font type, defines generation method
FontType :: enum c.int {
	DEFAULT = 0,                      // Default font generation, anti-aliased
	BITMAP,                           // Bitmap font generation, no anti-aliasing
	SDF,                              // SDF font generation, requires external shader
}

// Color blending modes (pre-defined)
BlendMode :: enum c.int {
	ALPHA = 0,                        // Blend textures considering alpha (default)
	ADDITIVE,                         // Blend textures adding colors
	MULTIPLIED,                       // Blend textures multiplying colors
	ADD_COLORS,                       // Blend textures adding colors (alternative)
	SUBTRACT_COLORS,                  // Blend textures subtracting colors (alternative)
	ALPHA_PREMULTIPLY,                // Blend premultiplied textures considering alpha
	CUSTOM,                           // Blend textures using custom src/dst factors (use rlSetBlendFactors())
	CUSTOM_SEPARATE,                  // Blend textures using custom rgb/alpha separate src/dst factors (use rlSetBlendFactorsSeparate())
}

// Gestures
// NOTE: It could be used as flags to enable only some gestures
Gesture :: enum c.uint {
	TAP         = 0,                  // Tap gesture
	DOUBLETAP   = 1,                  // Double tap gesture
	HOLD        = 2,                  // Hold gesture
	DRAG        = 3,                  // Drag gesture
	SWIPE_RIGHT = 4,                  // Swipe right gesture
	SWIPE_LEFT  = 5,                  // Swipe left gesture
	SWIPE_UP    = 6,                  // Swipe up gesture
	SWIPE_DOWN  = 7,                  // Swipe down gesture
	PINCH_IN    = 8,                  // Pinch in gesture
	PINCH_OUT   = 9,                  // Pinch out gesture
}
Gestures :: distinct bit_set[Gesture; c.uint]

// Camera system modes
CameraMode :: enum c.int {
	CUSTOM = 0,                       // Custom camera
	FREE,                             // Free camera
	ORBITAL,                          // Orbital camera
	FIRST_PERSON,                     // First person camera
	THIRD_PERSON,                     // Third person camera
}

// Camera projection
CameraProjection :: enum c.int {
	PERSPECTIVE = 0,                  // Perspective projection
	ORTHOGRAPHIC,                     // Orthographic projection
}

// N-patch layout
NPatchLayout :: enum c.int {
	NINE_PATCH = 0,          // Npatch layout: 3x3 tiles
	THREE_PATCH_VERTICAL,    // Npatch layout: 1x3 tiles
	THREE_PATCH_HORIZONTAL,  // Npatch layout: 3x1 tiles
}

// Callbacks to hook some internal functions
// WARNING: This callbacks are intended for advance users
TraceLogCallback     :: #type proc "c" (logLevel: TraceLogLevel, text: cstring, args: c.va_list)        // Logging: Redirect trace log messages
LoadFileDataCallback :: #type proc "c"(fileName: cstring, dataSize: ^c.int) -> [^]u8                    // FileIO: Load binary data
SaveFileDataCallback :: #type proc "c" (fileName: cstring, data: rawptr, dataSize: c.int) -> bool       // FileIO: Save binary data
LoadFileTextCallback :: #type proc "c" (fileName: cstring) -> [^]u8                                     // FileIO: Load text data
SaveFileTextCallback :: #type proc "c" (fileName: cstring, text: cstring) -> bool                       // FileIO: Save text data

AudioCallback :: #type proc "c" (bufferData: rawptr, frames: c.uint)


@(default_calling_convention="c")
foreign lib {
	//------------------------------------------------------------------------------------
	// Global Variables Definition
	//------------------------------------------------------------------------------------
	// It's lonely here...

	//------------------------------------------------------------------------------------
	// Window and Graphics Device Functions (Module: core)
	//------------------------------------------------------------------------------------

	// Window-related functions

	InitWindow               :: proc(width, height: c.int, title: cstring) ---  // Initialize window and OpenGL context
	WindowShouldClose        :: proc() -> bool  ---                             // Check if application should close (KEY_ESCAPE pressed or windows close icon clicked)
	CloseWindow              :: proc() ---                                      // Close window and unload OpenGL context
	IsWindowReady            :: proc() -> bool  ---                             // Check if window has been initialized successfully
	IsWindowFullscreen       :: proc() -> bool  ---                             // Check if window is currently fullscreen
	IsWindowHidden           :: proc() -> bool  ---                             // Check if window is currently hidden (only PLATFORM_DESKTOP)
	IsWindowMinimized        :: proc() -> bool  ---                             // Check if window is currently minimized (only PLATFORM_DESKTOP)
	IsWindowMaximized        :: proc() -> bool  ---                             // Check if window is currently maximized (only PLATFORM_DESKTOP)
	IsWindowFocused          :: proc() -> bool  ---                             // Check if window is currently focused (only PLATFORM_DESKTOP)
	IsWindowResized          :: proc() -> bool  ---                             // Check if window has been resized last frame
	IsWindowState            :: proc(flags: ConfigFlags) -> bool  ---           // Check if one specific window flag is enabled
	SetWindowState           :: proc(flags: ConfigFlags) ---                    // Set window configuration state using flags (only PLATFORM_DESKTOP)
	ClearWindowState         :: proc(flags: ConfigFlags) ---                    // Clear window configuration state flags
	ToggleFullscreen         :: proc() ---                                      // Toggle window state: fullscreen/windowed (only PLATFORM_DESKTOP)
	ToggleBorderlessWindowed :: proc() ---                                      // Toggle window state: borderless windowed (only PLATFORM_DESKTOP)
	MaximizeWindow           :: proc() ---                                      // Set window state: maximized, if resizable (only PLATFORM_DESKTOP)
	MinimizeWindow           :: proc() ---                                      // Set window state: minimized, if resizable (only PLATFORM_DESKTOP)
	RestoreWindow            :: proc() ---                                      // Set window state: not minimized/maximized (only PLATFORM_DESKTOP)
	SetWindowIcon            :: proc(image: Image) ---                          // Set icon for window (single image, RGBA 32bit, only PLATFORM_DESKTOP)
	SetWindowIcons           :: proc(images: [^]Image, count: c.int) ---        // Set icon for window (multiple images, RGBA 32bit, only PLATFORM_DESKTOP)
	SetWindowTitle           :: proc(title: cstring) ---                        // Set title for window (only PLATFORM_DESKTOP and PLATFORM_WEB)
	SetWindowPosition        :: proc(x, y: c.int) ---                           // Set window position on screen (only PLATFORM_DESKTOP)
	SetWindowMonitor         :: proc(monitor: c.int) ---                        // Set monitor for the current window
	SetWindowMinSize         :: proc(width, height: c.int) ---                  // Set window minimum dimensions (for WINDOW_RESIZABLE)
	SetWindowMaxSize         :: proc(width, height: c.int) ---                  // Set window maximum dimensions (for WINDOW_RESIZABLE)
	SetWindowSize            :: proc(width, height: c.int) ---                  // Set window dimensions
	SetWindowOpacity         :: proc(opacity: f32) ---                          // Set window opacity [0.0f..1.0f] (only PLATFORM_DESKTOP)
	SetWindowFocused         :: proc() ---                                      // Set window focused (only PLATFORM_DESKTOP)
	GetWindowHandle          :: proc() -> rawptr ---                            // Get native window handle
	GetScreenWidth           :: proc() -> c.int ---                             // Get current screen width
	GetScreenHeight          :: proc() -> c.int ---                             // Get current screen height
	GetRenderWidth           :: proc() -> c.int ---                             // Get current render width (it considers HiDPI)
	GetRenderHeight          :: proc() -> c.int ---                             // Get current render height (it considers HiDPI)
	GetMonitorCount          :: proc() -> c.int ---                             // Get number of connected monitors
	GetCurrentMonitor        :: proc() -> c.int ---                             // Get current connected monitor
	GetMonitorPosition       :: proc(monitor: c.int) -> Vector2 ---             // Get specified monitor position
	GetMonitorWidth          :: proc(monitor: c.int) -> c.int ---               // Get specified monitor width (current video mode used by monitor)
	GetMonitorHeight         :: proc(monitor: c.int) -> c.int ---               // Get specified monitor height (current video mode used by monitor)
	GetMonitorPhysicalWidth  :: proc(monitor: c.int) -> c.int ---               // Get specified monitor physical width in millimetres
	GetMonitorPhysicalHeight :: proc(monitor: c.int) -> c.int ---               // Get specified monitor physical height in millimetres
	GetMonitorRefreshRate    :: proc(monitor: c.int) -> c.int ---               // Get specified monitor refresh rate
	GetWindowPosition        :: proc() -> Vector2 ---                           // Get window position XY on monitor
	GetWindowScaleDPI        :: proc() -> Vector2 ---                           // Get window scale DPI factor
	GetMonitorName           :: proc(monitor: c.int) -> cstring ---             // Get the human-readable, UTF-8 encoded name of the specified monitor
	SetClipboardText         :: proc(text: cstring) ---                         // Set clipboard text content
	GetClipboardText         :: proc() -> cstring ---                           // Get clipboard text content
	EnableEventWaiting       :: proc() ---                                      // Enable waiting for events on EndDrawing(), no automatic event polling
	DisableEventWaiting      :: proc() ---                                      // Disable waiting for events on EndDrawing(), automatic events polling


	// Custom frame control functions
	// NOTE: Those functions are intended for advance users that want full control over the frame processing
	// By default EndDrawing() does this job: draws everything + SwapScreenBuffer() + manage frame timing + PollInputEvents()
	// To avoid that behaviour and control frame processes manually, enable in config.h: SUPPORT_CUSTOM_FRAME_CONTROL

	SwapScreenBuffer :: proc() ---             // Swap back buffer with front buffer (screen drawing)
	PollInputEvents  :: proc() ---             // Register all input events
	WaitTime         :: proc(seconds: f64) --- // Wait for some time (halt program execution)


	// Cursor-related functions

	ShowCursor       :: proc() ---                                              // Shows cursor
	HideCursor       :: proc() ---                                              // Hides cursor
	IsCursorHidden   :: proc() -> bool ---                                      // Check if cursor is not visible
	EnableCursor     :: proc() ---                                              // Enables cursor (unlock cursor)
	DisableCursor    :: proc() ---                                              // Disables cursor (lock cursor)
	IsCursorOnScreen :: proc() -> bool ---                                      // Check if cursor is on the current screen.

	// Drawing-related functions

	ClearBackground   :: proc(color: Color) ---               // Set background color (framebuffer clear color)
	BeginDrawing      :: proc() ---                           // Setup canvas (framebuffer) to start drawing
	EndDrawing        :: proc() ---                           // End canvas drawing and swap buffers (double buffering)
	BeginMode2D       :: proc(camera: Camera2D) ---           // Initialize 2D mode with custom camera (2D)
	EndMode2D         :: proc() ---                           // Ends 2D mode with custom camera
	BeginMode3D       :: proc(camera: Camera3D) ---           // Initializes 3D mode with custom camera (3D)
	EndMode3D         :: proc() ---                           // Ends 3D mode and returns to default 2D orthographic mode
	BeginTextureMode  :: proc(target: RenderTexture2D) ---    // Initializes render texture for drawing
	EndTextureMode    :: proc() ---                           // Ends drawing to render texture
	BeginShaderMode   :: proc(shader: Shader) ---             // Begin custom shader drawing
	EndShaderMode     :: proc() ---                           // End custom shader drawing (use default shader)
	BeginBlendMode    :: proc(mode: BlendMode) ---            // Begin blending mode (alpha, additive, multiplied)
	EndBlendMode      :: proc() ---                           // End blending mode (reset to default: alpha blending)
	BeginScissorMode  :: proc(x, y, width, height: c.int) --- // Begin scissor mode (define screen area for following drawing)
	EndScissorMode    :: proc() ---                           // End scissor mode
	BeginVrStereoMode :: proc(config: VrStereoConfig) ---     // Begin stereo rendering (requires VR simulator)
	EndVrStereoMode   :: proc() ---                           // End stereo rendering (requires VR simulator)

	// VR stereo config functions for VR simulator

	LoadVrStereoConfig   :: proc(device: VrDeviceInfo) -> VrStereoConfig --- // Load VR stereo config for VR simulator device parameters
	UnloadVrStereoConfig :: proc(config: VrStereoConfig) ---                 // Unload VR stereo config

	// Shader management functions
	// NOTE: Shader functionality is not available on OpenGL 1.1

	LoadShader              :: proc(vsFileName, fsFileName: cstring) -> Shader ---                                                        // Load shader from files and bind default locations
	LoadShaderFromMemory    :: proc(vsCode, fsCode: cstring) -> Shader ---                                                                // Load shader from code strings and bind default locations
	IsShaderReady           :: proc(shader: Shader) -> bool ---                                                                           // Check if a shader is ready
	GetShaderLocation       :: proc(shader: Shader, uniformName: cstring) -> c.int ---                                                    // Get shader uniform location
	GetShaderLocationAttrib :: proc(shader: Shader, attribName: cstring)  -> c.int ---                                                    // Get shader attribute location

	// We use #any_int here so we can pass ShaderLocationIndex
	SetShaderValue          :: proc(shader: Shader, #any_int locIndex: c.int, value: rawptr, uniformType: ShaderUniformDataType) ---               // Set shader uniform value
	SetShaderValueV         :: proc(shader: Shader, #any_int locIndex: c.int, value: rawptr, uniformType: ShaderUniformDataType, count: c.int) --- // Set shader uniform value vector
	SetShaderValueMatrix    :: proc(shader: Shader, #any_int locIndex: c.int, mat: Matrix) ---                                                     // Set shader uniform value (matrix 4x4)
	SetShaderValueTexture   :: proc(shader: Shader, #any_int locIndex: c.int, texture: Texture2D) ---                                              // Set shader uniform value for texture (sampler2d)
	UnloadShader            :: proc(shader: Shader) ---                                                                                   // Unload shader from GPU memory (VRAM)

	// Screen-space-related functions

	GetMouseRay        :: proc(mousePosition: Vector2, camera: Camera) -> Ray ---                      // Get a ray trace from mouse position
	GetCameraMatrix    :: proc(camera: Camera) -> Matrix ---                                           // Get camera transform matrix (view matrix)
	GetCameraMatrix2D  :: proc(camera: Camera2D) -> Matrix ---                                         // Get camera 2d transform matrix
	GetWorldToScreen   :: proc(position: Vector3, camera: Camera) -> Vector2 ---                       // Get the screen space position for a 3d world space position
	GetScreenToWorld2D :: proc(position: Vector2, camera: Camera2D) -> Vector2 ---                     // Get the world space position for a 2d camera screen space position
	GetWorldToScreenEx :: proc(position: Vector3, camera: Camera, width, height: c.int) -> Vector2 --- // Get size position for a 3d world space position
	GetWorldToScreen2D :: proc(position: Vector2, camera: Camera2D) -> Vector2 ---                     // Get the screen space position for a 2d camera world space position

	// Timing-related functions

	SetTargetFPS :: proc(fps: c.int) --- // Set target FPS (maximum)
	GetFPS       :: proc() -> c.int ---  // Returns current FPS
	GetFrameTime :: proc() -> f32 ---    // Returns time in seconds for last frame drawn (delta time)
	GetTime      :: proc() -> f64 ---    // Returns elapsed time in seconds since InitWindow()

	// Random value generation functions

	SetRandomSeed  		 :: proc(seed: c.uint) ---                      // Set the seed for the random number generator
	GetRandomValue 		 :: proc(min, max: c.int) -> c.int ---          // Get a random value between min and max (both included)
	LoadRandomSequence 	 :: proc(count : c.uint, min, max: c.int) --- 	// Load random values sequence, no values repeated
	UnloadRandomSequence :: proc(sequence : ^c.int) ---             	// Unload random values sequence

	// Misc. functions
	TakeScreenshot :: proc(fileName: cstring) ---        // Takes a screenshot of current screen (filename extension defines format)
	SetConfigFlags :: proc(flags: ConfigFlags) ---       // Setup init configuration flags (view FLAGS). NOTE: This function is expected to be called before window creation
	OpenURL        :: proc(url: cstring) ---             // Open URL with default system browser (if available)

	// NOTE: Following functions implemented in module [utils]
	//------------------------------------------------------------------
	TraceLog         :: proc(logLevel: TraceLogLevel, text: cstring, #c_vararg args: ..any) --- // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR)
	SetTraceLogLevel :: proc(logLevel: TraceLogLevel) ---                                       // Set the current threshold (minimum) log level
	MemAlloc         :: proc(size: c.uint) -> rawptr ---                                        // Internal memory allocator
	MemRealloc       :: proc(ptr: rawptr, size: c.uint) -> rawptr ---                           // Internal memory reallocator
	MemFree          :: proc(ptr: rawptr) ---                                                   // Internal memory free

	// Set custom callbacks
	// WARNING: Callbacks setup is intended for advance users

	SetTraceLogCallback     :: proc(callback: TraceLogCallback) ---     // Set custom trace log
	SetLoadFileDataCallback :: proc(callback: LoadFileDataCallback) --- // Set custom file binary data loader
	SetSaveFileDataCallback :: proc(callback: SaveFileDataCallback) --- // Set custom file binary data saver
	SetLoadFileTextCallback :: proc(callback: LoadFileTextCallback) --- // Set custom file text data loader
	SetSaveFileTextCallback :: proc(callback: SaveFileTextCallback) --- // Set custom file text data saver

	// Files management functions

	LoadFileData            :: proc(fileName: cstring, dataSize: ^c.int) -> [^]byte ---                   // Load file data as byte array (read)
	UnloadFileData          :: proc(data: [^]byte) ---                                                    // Unload file data allocated by LoadFileData()
	SaveFileData            :: proc(fileName: cstring, data: rawptr, dataSize: c.int) -> bool ---         // Save data to file from byte array (write), returns true on success
	ExportDataAsCode        :: proc(data: rawptr, dataSize: c.int, fileName: cstring) -> bool ---         // Export data to code (.h), returns true on success
	LoadFileText            :: proc(fileName: cstring) -> [^]byte ---                                     // Load text data from file (read), returns a '\0' terminated string
	UnloadFileText          :: proc(text: [^]byte) ---                                                    // Unload file text data allocated by LoadFileText()
	SaveFileText            :: proc(fileName: cstring, text: [^]byte) -> bool ---                         // Save text data to file (write), string must be '\0' terminated, returns true on success

	// File system functions

	FileExists              :: proc(fileName: cstring) -> bool ---                                             // Check if file exists
	DirectoryExists         :: proc(dirPath: cstring) -> bool ---                                              // Check if a directory path exists
	IsFileExtension         :: proc(fileName, ext: cstring) -> bool ---                                        // Check file extension (including point: .png, .wav)
	GetFileLength           :: proc(fileName: cstring) -> c.int ---                                            // Get file length in bytes (NOTE: GetFileSize() conflicts with windows.h)
	GetFileExtension        :: proc(fileName: cstring) -> cstring ---                                          // Get pointer to extension for a filename string (includes dot: '.png')
	GetFileName             :: proc(filePath: cstring) -> cstring ---                                          // Get pointer to filename for a path string
	GetFileNameWithoutExt   :: proc(filePath: cstring) -> cstring ---                                          // Get filename string without extension (uses static string)
	GetDirectoryPath        :: proc(filePath: cstring) -> cstring ---                                          // Get full path for a given fileName with path (uses static string)
	GetPrevDirectoryPath    :: proc(dirPath: cstring) -> cstring ---                                           // Get previous directory path for a given path (uses static string)
	GetWorkingDirectory     :: proc() -> cstring ---                                                           // Get current working directory (uses static string)
	GetApplicationDirectory :: proc() -> cstring ---                                                           // Get the directory of the running application (uses static string)
	ChangeDirectory         :: proc(dir: cstring) -> bool ---                                                  // Change working directory, return true on success
	IsPathFile              :: proc(path: cstring) -> bool ---                                                 // Check if a given path is a file or a directory
	LoadDirectoryFiles      :: proc(dirPath: cstring) -> FilePathList ---                                      // Load directory filepaths
	LoadDirectoryFilesEx    :: proc(basePath: cstring, filter: cstring, scanSubdirs: bool) -> FilePathList --- // Load directory filepaths with extension filtering and recursive directory scan
	UnloadDirectoryFiles    :: proc(files: FilePathList) ---                                                   // Unload filepaths
	IsFileDropped           :: proc() -> bool ---                                                              // Check if a file has been dropped into window
	LoadDroppedFiles        :: proc() -> FilePathList ---                                                      // Load dropped filepaths
	UnloadDroppedFiles      :: proc(files: FilePathList) ---                                                   // Unload dropped filepaths
	GetFileModTime          :: proc(fileName: cstring) -> c.long ---                                           // Get file modification time (last write time)

	// Compression/Encoding functionality

	CompressData     :: proc(data: rawptr,     dataSize: c.int,     compDataSize: ^c.int) -> [^]byte ---       // Compress data (DEFLATE algorithm), memory must be MemFree()
	DecompressData   :: proc(compData: rawptr, compDataSize: c.int, dataSize:     ^c.int) -> [^]byte ---       // Decompress data (DEFLATE algorithm), memory must be MemFree()
	EncodeDataBase64 :: proc(data: rawptr,     dataSize: c.int,     outputSize:   ^c.int) -> [^]byte ---       // Encode data to Base64 string, memory must be MemFree()
	DecodeDataBase64 :: proc(data: rawptr,     outputSize: ^c.int) -> [^]byte ---                              // Decode Base64 string data, memory must be MemFree()

	// Automation events functionality

	LoadAutomationEventList       :: proc(fileName: cstring) -> AutomationEventList ---             // Load automation events list from file, NULL for empty list, capacity = MAX_AUTOMATION_EVENTS
	UnloadAutomationEventList     :: proc(list: ^AutomationEventList) ---                       	// Unload automation events list from file
	ExportAutomationEventList     :: proc(list: AutomationEventList, fileName: cstring) -> bool --- // Export automation events list as text file
	SetAutomationEventList        :: proc(list: ^AutomationEventList) ---                        	// Set automation event list to record to
	SetAutomationEventBaseFrame   :: proc(frame: c.int) ---                                         // Set automation event internal base frame to start recording
	StartAutomationEventRecording :: proc() ---                                                     // Start recording automation events (AutomationEventList must be set)
	StopAutomationEventRecording  :: proc() ---                                                     // Stop recording automation events
	PlayAutomationEvent           :: proc(event: AutomationEvent) ---                               // Play a recorded automation event

	//------------------------------------------------------------------------------------
	// Input Handling Functions (Module: core)
	//------------------------------------------------------------------------------------

	// Input-related functions: keyboard

	IsKeyPressed   	   :: proc(key: KeyboardKey) -> bool --- // Detect if a key has been pressed once
	IsKeyPressedRepeat :: proc(key: KeyboardKey) -> bool --- // Check if a key has been pressed again (Only PLATFORM_DESKTOP)
	IsKeyDown      	   :: proc(key: KeyboardKey) -> bool --- // Detect if a key is being pressed
	IsKeyReleased  	   :: proc(key: KeyboardKey) -> bool --- // Detect if a key has been released once
	IsKeyUp        	   :: proc(key: KeyboardKey) -> bool --- // Detect if a key is NOT being pressed
	GetKeyPressed  	   :: proc() -> KeyboardKey ---          // Get key pressed (keycode), call it multiple times for keys queued
	GetCharPressed 	   :: proc() -> rune ---                 // Get char pressed (unicode), call it multiple times for chars queued
	SetExitKey     	   :: proc(key: KeyboardKey) ---         // Set a custom key to exit program (default is ESC)

	// Input-related functions: gamepads

	IsGamepadAvailable       :: proc(gamepad: c.int) -> bool ---                        // Check if a gamepad is available
	GetGamepadName           :: proc(gamepad: c.int) -> cstring ---                     // Get gamepad internal name id
	IsGamepadButtonPressed   :: proc(gamepad: c.int, button: GamepadButton) -> bool --- // Check if a gamepad button has been pressed once
	IsGamepadButtonDown      :: proc(gamepad: c.int, button: GamepadButton) -> bool --- // Check if a gamepad button is being pressed
	IsGamepadButtonReleased  :: proc(gamepad: c.int, button: GamepadButton) -> bool --- // Check if a gamepad button has been released once
	IsGamepadButtonUp        :: proc(gamepad: c.int, button: GamepadButton) -> bool --- // Check if a gamepad button is NOT being pressed
	GetGamepadButtonPressed  :: proc() -> GamepadButton ---                             // Get the last gamepad button pressed
	GetGamepadAxisCount      :: proc(gamepad: c.int) -> c.int ---                       // Get gamepad axis count for a gamepad
	GetGamepadAxisMovement   :: proc(gamepad: c.int, axis: GamepadAxis) -> f32 ---      // Get axis movement value for a gamepad axis
	SetGamepadMappings       :: proc(mappings: cstring) -> c.int ---                    // Set internal gamepad mappings (SDL_GameControllerDB)

	// Input-related functions: mouse

	IsMouseButtonPressed  :: proc(button: MouseButton) -> bool ---    // Detect if a mouse button has been pressed once
	IsMouseButtonDown     :: proc(button: MouseButton) -> bool ---    // Detect if a mouse button is being pressed
	IsMouseButtonReleased :: proc(button: MouseButton) -> bool ---    // Detect if a mouse button has been released once

	when VERSION != "5.0" {
		#panic("IsMouseButtonUp was broken in Raylib 5.0 but should be fixed in Raylib > 5.0. Remove this panic and the when block around it and also remove the workaround version of IsMouseButtonUp just after the end of the 'foreign lib {' block.")
		IsMouseButtonUp       :: proc(button: MouseButton) -> bool ---
	}
	
	GetMouseX             :: proc() -> c.int ---                      // Returns mouse position X
	GetMouseY             :: proc() -> c.int ---                      // Returns mouse position Y
	GetMousePosition      :: proc() -> Vector2 ---                    // Returns mouse position XY
	GetMouseDelta         :: proc() -> Vector2 ---                    // Returns mouse delta XY
	SetMousePosition      :: proc(x, y: c.int) ---                    // Set mouse position XY
	SetMouseOffset        :: proc(offsetX, offsetY: c.int) ---        // Set mouse offset
	SetMouseScale         :: proc(scaleX, scaleY: f32) ---            // Set mouse scaling
	GetMouseWheelMove     :: proc() -> f32 ---                        // Returns mouse wheel movement Y
	GetMouseWheelMoveV    :: proc() -> Vector2 ---                    // Get mouse wheel movement for both X and Y
	SetMouseCursor        :: proc(cursor: MouseCursor) ---            // Set mouse cursor

	// Input-related functions: touch

	GetTouchX          :: proc() -> c.int ---               // Returns touch position X for touch point 0 (relative to screen size)
	GetTouchY          :: proc() -> c.int ---               // Returns touch position Y for touch point 0 (relative to screen size)
	GetTouchPosition   :: proc(index: c.int) -> Vector2 --- // Returns touch position XY for a touch point index (relative to screen size)
	GetTouchPointId    :: proc(index: c.int) -> c.int ---   // Get touch point identifier for given index
	GetTouchPointCount :: proc() -> c.int ---               // Get number of touch points

	//------------------------------------------------------------------------------------
	// Gestures and Touch Handling Functions (Module: rgestures)
	//------------------------------------------------------------------------------------

	SetGesturesEnabled     :: proc(flags: Gestures) ---          // Enable a set of gestures using flags
	// IsGestureDetected      :: proc(gesture: Gesture) -> bool --- // Check if a gesture have been detected

	GetGestureDetected     :: proc() -> Gestures ---             // Get latest detected gesture
	GetGestureHoldDuration :: proc() -> f32 ---                  // Get gesture hold time in milliseconds
	GetGestureDragVector   :: proc() -> Vector2 ---              // Get gesture drag vector
	GetGestureDragAngle    :: proc() -> f32 ---                  // Get gesture drag angle
	GetGesturePinchVector  :: proc() -> Vector2 ---              // Get gesture pinch delta
	GetGesturePinchAngle   :: proc() -> f32 ---                  // Get gesture pinch angle

	//------------------------------------------------------------------------------------
	// Camera System Functions (Module: camera)
	//------------------------------------------------------------------------------------

	UpdateCamera :: proc(camera: ^Camera, mode: CameraMode) ---                                   // Set camera mode (multiple camera modes available)
	UpdateCameraPro :: proc(camera: ^Camera, movement: Vector3, rotation: Vector3, zoom: f32) --- // Update camera movement/rotation

	//------------------------------------------------------------------------------------
	// Basic Shapes Drawing Functions (Module: shapes)
	//------------------------------------------------------------------------------------
	// Set texture and rectangle to be used on shapes drawing
	// NOTE: It can be useful when using basic shapes and one single font,
	// defining a font char white rectangle would allow drawing everything in a single draw call

	SetShapesTexture :: proc(texture: Texture2D, source: Rectangle) ---

	// Basic shapes drawing functions

	DrawPixel                 :: proc(posX, posY: c.int, color: Color) ---                                                                          // Draw a pixel
	DrawPixelV                :: proc(position: Vector2, color: Color) ---                                                                          // Draw a pixel (Vector version)
	DrawLine                  :: proc(startPosX, startPosY, endPosX, endPosY: c.int, color: Color) ---                                              // Draw a line
	DrawLineV                 :: proc(startPos, endPos: Vector2, color: Color) ---                                                                  // Draw a line (using gl lines)
	DrawLineEx                :: proc(startPos, endPos: Vector2, thick: f32, color: Color) ---                                                      // Draw a line (using triangles/quads)
	DrawLineStrip             :: proc(points: [^]Vector2, pointCount: c.int, color: Color) ---                                                      // Draw lines sequence (using gl lines)
	DrawLineBezier            :: proc(startPos, endPos: Vector2, thick: f32, color: Color) ---                                                      // Draw line segment cubic-bezier in-out interpolation
	DrawCircle                :: proc(centerX, centerY: c.int, radius: f32, color: Color) ---                                                       // Draw a color-filled circle
	DrawCircleSector          :: proc(center: Vector2, radius: f32, startAngle, endAngle: f32, segments: c.int, color: Color) ---                   // Draw a piece of a circle
	DrawCircleSectorLines     :: proc(center: Vector2, radius: f32, startAngle, endAngle: f32, segments: c.int, color: Color) ---                   // Draw circle sector outline
	DrawCircleGradient        :: proc(centerX, centerY: c.int, radius: f32, color1, color2: Color) ---                                              // Draw a gradient-filled circle
	DrawCircleV               :: proc(center: Vector2, radius: f32, color: Color) ---                                                               // Draw a color-filled circle (Vector version)
	DrawCircleLines           :: proc(centerX, centerY: c.int, radius: f32, color: Color) ---                                                       // Draw circle outline
	DrawCircleLinesV          :: proc(center: Vector2, radius: f32, color: Color) ---                                                               // Draw circle outline (Vector version)
	DrawEllipse               :: proc(centerX, centerY: c.int, radiusH, radiusV: f32, color: Color) ---                                             // Draw ellipse
	DrawEllipseLines          :: proc(centerX, centerY: c.int, radiusH, radiusV: f32, color: Color) ---                                             // Draw ellipse outline
	DrawRing                  :: proc(center: Vector2, innerRadius, outerRadius: f32, startAngle, endAngle: f32, segments: c.int, color: Color) --- // Draw ring
	DrawRingLines             :: proc(center: Vector2, innerRadius, outerRadius: f32, startAngle, endAngle: f32, segments: c.int, color: Color) --- // Draw ring outline
	DrawRectangle             :: proc(posX, posY: c.int, width, height: c.int, color: Color) ---                                                    // Draw a color-filled rectangle
	DrawRectangleV            :: proc(position: Vector2, size: Vector2, color: Color) ---                                                           // Draw a color-filled rectangle (Vector version)
	DrawRectangleRec          :: proc(rec: Rectangle, color: Color) ---                                                                             // Draw a color-filled rectangle
	DrawRectanglePro          :: proc(rec: Rectangle, origin: Vector2, rotation: f32, color: Color) ---                                             // Draw a color-filled rectangle with pro parameters
	DrawRectangleGradientV    :: proc(posX, posY: c.int, width, height: c.int, color1, color2: Color) ---                                           // Draw a vertical-gradient-filled rectangle
	DrawRectangleGradientH    :: proc(posX, posY: c.int, width, height: c.int, color1, color2: Color) ---                                           // Draw a horizontal-gradient-filled rectangle
	DrawRectangleGradientEx   :: proc(rec: Rectangle, col1, col2, col3, col4: Color) ---                                                            // Draw a gradient-filled rectangle with custom vertex colors
	DrawRectangleLines        :: proc(posX, posY: c.int, width, height: c.int, color: Color) ---                                                    // Draw rectangle outline
	DrawRectangleLinesEx      :: proc(rec: Rectangle, lineThick: f32, color: Color) ---                                                             // Draw rectangle outline with extended parameters
	DrawRectangleRounded      :: proc(rec: Rectangle, roundness: f32, segments: c.int, color: Color) ---                                            // Draw rectangle with rounded edges
	DrawRectangleRoundedLines :: proc(rec: Rectangle, roundness: f32, segments: c.int, lineThick: f32, color: Color) ---                            // Draw rectangle with rounded edges outline
	DrawTriangle              :: proc(v1, v2, v3: Vector2, color: Color) ---                                                                        // Draw a color-filled triangle (vertex in counter-clockwise order!)
	DrawTriangleLines         :: proc(v1, v2, v3: Vector2, color: Color) ---                                                                        // Draw triangle outline (vertex in counter-clockwise order!)
	DrawTriangleFan           :: proc(points: [^]Vector2, pointCount: c.int, color: Color) ---                                                      // Draw a triangle fan defined by points (first vertex is the center)
	DrawTriangleStrip         :: proc(points: [^]Vector2, pointCount: c.int, color: Color) ---                                                      // Draw a triangle strip defined by points
	DrawPoly                  :: proc(center: Vector2, sides: c.int, radius: f32, rotation: f32, color: Color) ---                                  // Draw a regular polygon (Vector version)
	DrawPolyLines             :: proc(center: Vector2, sides: c.int, radius: f32, rotation: f32, color: Color) ---                                  // Draw a polygon outline of n sides
	DrawPolyLinesEx           :: proc(center: Vector2, sides: c.int, radius: f32, rotation: f32, lineThick: f32, color: Color) ---                  // Draw a polygon outline of n sides with extended parameters

	// Splines drawing functions
	DrawSplineLinear                 :: proc(points: [^]Vector2, pointCount: c.int, thick: f32, color: Color) --- // Draw spline: Linear, minimum 2 points
	DrawSplineBasis                  :: proc(points: [^]Vector2, pointCount: c.int, thick: f32, color: Color) --- // Draw spline: B-Spline, minimum 4 points
	DrawSplineCatmullRom             :: proc(points: [^]Vector2, pointCount: c.int, thick: f32, color: Color) --- // Draw spline: Catmull-Rom, minimum 4 points
	DrawSplineBezierQuadratic        :: proc(points: [^]Vector2, pointCount: c.int, thick: f32, color: Color) --- // Draw spline: Quadratic Bezier, minimum 3 points (1 control point): [p1, c2, p3, c4...]
	DrawSplineBezierCubic            :: proc(points: [^]Vector2, pointCount: c.int, thick: f32, color: Color) --- // Draw spline: Cubic Bezier, minimum 4 points (2 control points): [p1, c2, c3, p4, c5, c6...]
	DrawSplineSegmentLinear          :: proc(p1, p2: Vector2, thick: f32, color: Color) ---                       // Draw spline segment: Linear, 2 points
	DrawSplineSegmentBasis           :: proc(p1, p2, p3, p4: Vector2, thick: f32, color: Color) ---               // Draw spline segment: B-Spline, 4 points
	DrawSplineSegmentCatmullRom 	 :: proc(p1, p2, p3, p4: Vector2, thick: f32, color: Color) ---               // Draw spline segment: Catmull-Rom, 4 points
	DrawSplineSegmentBezierQuadratic :: proc(p1, c2, p3: Vector2, thick: f32, color: Color) ---                   // Draw spline segment: Quadratic Bezier, 2 points, 1 control point
	DrawSplineSegmentBezierCubic 	 :: proc(p1, c2, c3, p4: Vector2, thick: f32, color: Color) ---               // Draw spline segment: Cubic Bezier, 2 points, 2 control points

	// Spline segment point evaluation functions, for a given t [0.0f .. 1.0f]
	GetSplinePointLinear  	  :: proc(startPos, endPos: Vector2, t: f32) -> Vector2 ---    // Get (evaluate) spline point: Linear
	GetSplinePointBasis 	  :: proc(p1, p2, p3, p4: Vector2, t: f32) -> Vector2 ---      // Get (evaluate) spline point: B-Spline
	GetSplinePointCatmullRom  :: proc(p1, p2, p3, p4: Vector2, t: f32) -> Vector2 ---      // Get (evaluate) spline point: Catmull-Rom
	GetSplinePointBezierQuad  :: proc(p1, c2, p3: Vector2, t: f32) -> Vector2 ---          // Get (evaluate) spline point: Quadratic Bezier
	GetSplinePointBezierCubic :: proc(p1, c2, c3, p4: Vector2, t: f32) -> Vector2 ---      // Get (evaluate) spline point: Cubic Bezier
                                                                                                                                                        // Basic shapes collision detection functions
	CheckCollisionRecs          :: proc(rec1, rec2: Rectangle) -> bool ---                                                                          // Check collision between two rectangles
	CheckCollisionCircles       :: proc(center1: Vector2, radius1: f32, center2: Vector2, radius2: f32) -> bool ---                                 // Check collision between two circles
	CheckCollisionCircleRec     :: proc(center: Vector2, radius: f32, rec: Rectangle) -> bool ---                                                   // Check collision between circle and rectangle
	CheckCollisionPointRec      :: proc(point: Vector2, rec: Rectangle) -> bool ---                                                                 // Check if point is inside rectangle
	CheckCollisionPointCircle   :: proc(point, center: Vector2, radius: f32) -> bool ---                                                            // Check if point is inside circle
	CheckCollisionPointTriangle :: proc(point: Vector2, p1, p2, p3: Vector2) -> bool ---                                                            // Check if point is inside a triangle
	CheckCollisionPointPoly     :: proc(point: Vector2, points: [^]Vector2, pointCount: c.int) -> bool ---                                          // Check if point is within a polygon described by array of vertices
	CheckCollisionLines         :: proc(startPos1, endPos1, startPos2, endPos2: Vector2, collisionPoint: [^]Vector2) -> bool ---                    // Check the collision between two lines defined by two points each, returns collision point by reference
	CheckCollisionPointLine     :: proc(point: Vector2, p1, p2: Vector2, threshold: c.int) -> bool ---                                              // Check if point belongs to line created between two points [p1] and [p2] with defined margin in pixels [threshold]
	GetCollisionRec             :: proc(rec1, rec2: Rectangle) -> Rectangle ---                                                                     // Get collision rectangle for two rectangles collision



	// Image loading functions
	// NOTE: These functions do not require GPU access

	LoadImage            :: proc(fileName: cstring) -> Image ---                                                               // Load image from file into CPU memory (RAM)
	LoadImageRaw         :: proc(fileName: cstring, width, height: c.int, format: PixelFormat, headerSize: c.int) -> Image --- // Load image from RAW file data
	LoadImageSvg         :: proc(fileNameOrString: cstring, width, height: c.int) -> Image ---                                 // Load image from SVG file data or string with specified size
	LoadImageAnim        :: proc(fileName: cstring, frames: [^]c.int) -> Image ---                                             // Load image sequence from file (frames appended to image.data)
	LoadImageFromMemory  :: proc(fileType: cstring, fileData: rawptr, dataSize: c.int) -> Image ---                            // Load image from memory buffer, fileType refers to extension: i.e. '.png'
	LoadImageFromTexture :: proc(texture: Texture2D) -> Image ---                                                              // Load image from GPU texture data
	LoadImageFromScreen  :: proc() -> Image ---                                                                                // Load image from screen buffer and (screenshot)
	IsImageReady         :: proc(image: Image) -> bool ---                                                                     // Check if an image is ready
	UnloadImage          :: proc(image: Image) ---                                                                             // Unload image from CPU memory (RAM)
	ExportImage          :: proc(image: Image, fileName: cstring) -> bool ---                                                  // Export image data to file, returns true on success
	ExportImageToMemory  :: proc(image: Image, fileType: cstring, fileSize: ^c.int) -> rawptr ---                              // Export image to memory buffer
	ExportImageAsCode    :: proc(image: Image, fileName: cstring) -> bool ---                                                  // Export image as code file defining an array of bytes, returns true on success

	// Image generation functions

	GenImageColor          :: proc(width, height: c.int, color: Color) -> Image  ---                                           // Generate image: plain color
	GenImageGradientLinear :: proc(width, height, direction: c.int, start, end: Color) -> Image ---                            // Generate image: linear gradient, direction in degrees [0..360], 0=Vertical gradient
	GenImageGradientRadial :: proc(width, height: c.int, density: f32, inner, outer: Color) -> Image  ---                      // Generate image: radial gradient
	GenImageGradientSquare :: proc(width, height: c.int, density: f32, inner, outer: Color) -> Image  ---                      // Generate image: square gradient
	GenImageChecked        :: proc(width, height: c.int, checksX, checksY: c.int, col1, col2: Color) -> Image  ---             // Generate image: checked
	GenImageWhiteNoise     :: proc(width, height: c.int, factor: f32) -> Image  ---                                            // Generate image: white noise
	GenImagePerlinNoise    :: proc(width, height: c.int, offsetX, offsetY: c.int, scale: f32) -> Image  ---                    // Generate image: perlin noise
	GenImageCellular       :: proc(width, height: c.int, tileSize: c.int) -> Image  ---                                        // Generate image: cellular algorithm, bigger tileSize means bigger cells
	GenImageText           :: proc(width, height: c.int, text: cstring) -> Image  ---                                          // Generate image: grayscale image from text data

	// Image manipulation functions

	ImageCopy             :: proc(image: Image) -> Image ---                                                                   // Create an image duplicate (useful for transformations)
	ImageFromImage        :: proc(image: Image, rec: Rectangle) -> Image ---                                                   // Create an image from another image piece
	ImageText             :: proc(text: cstring, fontSize: c.int, color: Color) -> Image ---                                   // Create an image from text (default font)
	ImageTextEx           :: proc(font: Font, text: cstring, fontSize: f32, spacing: f32, tint: Color) -> Image ---            // Create an image from text (custom sprite font)
	ImageFormat           :: proc(image: ^Image, newFormat: PixelFormat) ---                                                   // Convert image data to desired format
	ImageToPOT            :: proc(image: ^Image, fill: Color) ---                                                              // Convert image to POT (power-of-two)
	ImageCrop             :: proc(image: ^Image, crop: Rectangle) ---                                                          // Crop an image to a defined rectangle
	ImageAlphaCrop        :: proc(image: ^Image, threshold: f32) ---                                                           // Crop image depending on alpha value
	ImageAlphaClear       :: proc(image: ^Image, color: Color, threshold: f32) ---                                             // Clear alpha channel to desired color
	ImageAlphaMask        :: proc(image: ^Image, alphaMask: Image) ---                                                         // Apply alpha mask to image
	ImageAlphaPremultiply :: proc(image: ^Image) ---                                                                           // Premultiply alpha channel
	ImageBlurGaussian     :: proc(image: ^Image, blurSize: c.int) ---                                                          // Apply Gaussian blur using a box blur approximation
	ImageResize           :: proc(image: ^Image, newWidth,  newHeight: c.int) ---                                              // Resize image (Bicubic scaling algorithm)
	ImageResizeNN         :: proc(image: ^Image, newWidth,  newHeight: c.int) ---                                              // Resize image (Nearest-Neighbor scaling algorithm)
	ImageResizeCanvas     :: proc(image: ^Image, newWidth,  newHeight: c.int, offsetX, offsetY: c.int, fill: Color) ---        // Resize canvas and fill with color
	ImageMipmaps          :: proc(image: ^Image) ---                                                                           // Compute all mipmap levels for a provided image
	ImageDither           :: proc(image: ^Image, rBpp, gBpp, bBpp, aBpp: c.int) ---                                            // Dither image data to 16bpp or lower (Floyd-Steinberg dithering)
	ImageFlipVertical     :: proc(image: ^Image) ---                                                                           // Flip image vertically
	ImageFlipHorizontal   :: proc(image: ^Image) ---                                                                           // Flip image horizontally
	ImageRotate           :: proc(image: ^Image, degrees: c.int) ---                                                           // Rotate image by input angle in degrees( -359 to 359)
	ImageRotateCW         :: proc(image: ^Image) ---                                                                           // Rotate image clockwise 90deg
	ImageRotateCCW        :: proc(image: ^Image) ---                                                                           // Rotate image counter-clockwise 90deg
	ImageColorTint        :: proc(image: ^Image, color: Color) ---                                                             // Modify image color: tint
	ImageColorInvert      :: proc(image: ^Image) ---                                                                           // Modify image color: invert
	ImageColorGrayscale   :: proc(image: ^Image) ---                                                                           // Modify image color: grayscale
	ImageColorContrast    :: proc(image: ^Image, contrast: f32) ---                                                            // Modify image color: contrast (-100 to 100)
	ImageColorBrightness  :: proc(image: ^Image, brightness: c.int) ---                                                        // Modify image color: brightness (-255 to 255)
	ImageColorReplace     :: proc(image: ^Image, color, replace: Color) ---                                                    // Modify image color: replace color
	LoadImageColors       :: proc(image: Image) -> [^]Color ---                                                                // Load color data from image as a Color array (RGBA - 32bit)
	LoadImagePalette      :: proc(image: Image, maxPaletteSize: c.int, colorCount: ^c.int) -> [^]Color ---                     // Load colors palette from image as a Color array (RGBA - 32bit)
	UnloadImageColors     :: proc(colors: [^]Color) ---                                                                        // Unload color data loaded with LoadImageColors()
	UnloadImagePalette    :: proc(colors: [^]Color) ---                                                                        // Unload colors palette loaded with LoadImagePalette()
	GetImageAlphaBorder   :: proc(image: Image, threshold: f32) -> Rectangle ---                                               // Get image alpha border rectangle
	GetImageColor         :: proc(image: Image, x, y: c.int) -> Color ---                                                      // Get image pixel color at (x, y) position

	// Image drawing functions
	// NOTE: Image software-rendering functions (CPU)

	ImageClearBackground    :: proc(dst: ^Image, color: Color) ---                                                                           // Clear image background with given color
	ImageDrawPixel          :: proc(dst: ^Image, posX, posY: c.int, color: Color) ---                                                        // Draw pixel within an image
	ImageDrawPixelV         :: proc(dst: ^Image, position: Vector2, color: Color) ---                                                        // Draw pixel within an image (Vector version)
	ImageDrawLine           :: proc(dst: ^Image, startPosX, startPosY, endPosX, endPosY: c.int, color: Color) ---                            // Draw line within an image
	ImageDrawLineV          :: proc(dst: ^Image, start, end: Vector2, color: Color) ---                                                      // Draw line within an image (Vector version)
	ImageDrawCircle         :: proc(dst: ^Image, centerX, centerY: c.int, radius: c.int, color: Color) ---                                   // Draw a filled circle within an image
	ImageDrawCircleV        :: proc(dst: ^Image, center: Vector2, radius: c.int, color: Color) ---                                           // Draw a filled circle within an image (Vector version)
	ImageDrawCircleLines    :: proc(dst: ^Image, centerX, centerY: c.int, radius: c.int, color: Color) ---                                   // Draw circle outline within an image
	ImageDrawCircleLinesV   :: proc(dst: ^Image, center: Vector2, radius: c.int, color: Color) ---                                           // Draw circle outline within an image (Vector version)
	ImageDrawRectangle      :: proc(dst: ^Image, posX, posY: c.int, width, height: c.int, color: Color) ---                                  // Draw rectangle within an image
	ImageDrawRectangleV     :: proc(dst: ^Image, position, size: Vector2, color: Color) ---                                                  // Draw rectangle within an image (Vector version)
	ImageDrawRectangleRec   :: proc(dst: ^Image, rec: Rectangle, color: Color) ---                                                           // Draw rectangle within an image
	ImageDrawRectangleLines :: proc(dst: ^Image, rec: Rectangle, thick: c.int, color: Color) ---                                             // Draw rectangle lines within an image
	ImageDraw               :: proc(dst: ^Image, src: Image, srcRec, dstRec: Rectangle, tint: Color) ---                                     // Draw a source image within a destination image (tint applied to source)
	ImageDrawText           :: proc(dst: ^Image, text: cstring, posX, posY: c.int, fontSize: c.int, color: Color) ---                        // Draw text (using default font) within an image (destination)
	ImageDrawTextEx         :: proc(dst: ^Image, font: Font, text: cstring, position: Vector2, fontSize: f32, spacing: f32, tint: Color) --- // Draw text (custom sprite font) within an image (destination)

	// Texture loading functions
	// NOTE: These functions require GPU access

	LoadTexture          :: proc(fileName: cstring) -> Texture2D ---                        // Load texture from file into GPU memory (VRAM)
	LoadTextureFromImage :: proc(image: Image) -> Texture2D ---                             // Load texture from image data
	LoadTextureCubemap   :: proc(image: Image, layout: CubemapLayout) -> TextureCubemap --- // Load cubemap from image, multiple image cubemap layouts supported
	LoadRenderTexture    :: proc(width, height: c.int) -> RenderTexture2D ---               // Load texture for rendering (framebuffer)
	IsTextureReady       :: proc(texture: Texture2D) -> bool ---                            // Check if a texture is ready
	UnloadTexture        :: proc(texture: Texture2D) ---                                    // Unload texture from GPU memory (VRAM)
	IsRenderTextureReady :: proc(target: RenderTexture2D) -> bool  ---                      // Check if a render texture is ready
	UnloadRenderTexture  :: proc(target: RenderTexture2D) ---                               // Unload render texture from GPU memory (VRAM)
	UpdateTexture        :: proc(texture: Texture2D, pixels: rawptr) ---                    // Update GPU texture with new data
	UpdateTextureRec     :: proc(texture: Texture2D, rec: Rectangle, pixels: rawptr) ---    // Update GPU texture rectangle with new data

	// Texture configuration functions

	GenTextureMipmaps :: proc(texture: ^Texture2D) ---                                                                                      // Generate GPU mipmaps for a texture
	SetTextureFilter  :: proc(texture: Texture2D, filter: TextureFilter) ---                                                                // Set texture scaling filter mode
	SetTextureWrap    :: proc(texture: Texture2D, wrap: TextureWrap) ---                                                                    // Set texture wrapping mode

                                                                                                                                                // Texture drawing functions
	DrawTexture       :: proc(texture: Texture2D, posX, posY: c.int, tint: Color) ---                                                       // Draw a Texture2D
	DrawTextureV      :: proc(texture: Texture2D, position: Vector2, tint: Color) ---                                                       // Draw a Texture2D with position defined as Vector2
	DrawTextureEx     :: proc(texture: Texture2D, position: Vector2, rotation: f32, scale: f32, tint: Color) ---                            // Draw a Texture2D with extended parameters
	DrawTextureRec    :: proc(texture: Texture2D, source: Rectangle, position: Vector2, tint: Color) ---                                    // Draw a part of a texture defined by a rectangle
	DrawTexturePro    :: proc(texture: Texture2D, source, dest: Rectangle, origin: Vector2, rotation: f32, tint: Color) ---                 // Draw a part of a texture defined by a rectangle with 'pro' parameters
	DrawTextureNPatch :: proc(texture: Texture2D, nPatchInfo: NPatchInfo, dest: Rectangle, origin: Vector2, rotation: f32, tint: Color) --- // Draws a texture (or part of it) that stretches or shrinks nicely

	// Color/pixel related functions

	Fade                :: proc(color: Color, alpha: f32) -> Color ---                  // Get color with alpha applied, alpha goes from 0.0f to 1.0f
	ColorToInt          :: proc(color: Color) -> c.uint ---                             // Get hexadecimal value for a Color
	ColorNormalize      :: proc(color: Color) -> Vector4 ---                            // Get Color normalized as float [0..1]
	ColorFromNormalized :: proc(normalized: Vector4) -> Color ---                       // Get Color from normalized values [0..1]
	ColorToHSV          :: proc(color: Color) -> Vector3 ---                            // Get HSV values for a Color, hue [0..360], saturation/value [0..1]
	ColorFromHSV        :: proc(hue, saturation, value: f32) -> Color ---               // Get a Color from HSV values, hue [0..360], saturation/value [0..1]
	ColorTint           :: proc(color, tint: Color) -> Color ---                        // Get color multiplied with another color
	ColorBrightness     :: proc(color: Color, factor: f32) -> Color ---                 // Get color with brightness correction, brightness factor goes from -1.0f to 1.0f
	ColorContrast       :: proc(color: Color, contrast: f32) -> Color ---               // Get color with contrast correction, contrast values between -1.0f and 1.0f
	ColorAlpha          :: proc(color: Color, alpha: f32) -> Color ---                  // Get color with alpha applied, alpha goes from 0.0f to 1.0f
	ColorAlphaBlend     :: proc(dst, src, tint: Color) -> Color ---                     // Get src alpha-blended into dst color with tint
	GetColor            :: proc(hexValue: c.uint) -> Color ---                          // Get Color structure from hexadecimal value
	GetPixelColor       :: proc(srcPtr: rawptr, format: PixelFormat) -> Color ---       // Get Color from a source pixel pointer of certain format
	SetPixelColor       :: proc(dstPtr: rawptr, color: Color, format: PixelFormat) ---  // Set color formatted into destination pixel pointer
	GetPixelDataSize    :: proc(width, height: c.int, format: PixelFormat) -> c.int --- // Get pixel data size in bytes for certain format




	//------------------------------------------------------------------------------------
	// Font Loading and Text Drawing Functions (Module: text)
	//------------------------------------------------------------------------------------

	// Font loading/unloading functions

	GetFontDefault     :: proc() -> Font ---                                                                                                                  		   // Get the default Font
	LoadFont           :: proc(fileName: cstring) -> Font ---                                                                                                 		   // Load font from file into GPU memory (VRAM)
	LoadFontEx         :: proc(fileName: cstring, fontSize: c.int, codepoints: [^]rune, codepointCount: c.int) -> Font ---                                                     // Load font from file with extended parameters, use NULL for codepoints and 0 for codepointCount to load the default character set
	LoadFontFromImage  :: proc(image: Image, key: Color, firstChar: rune) -> Font ---                                                                         		   // Load font from Image (XNA style)
	LoadFontFromMemory :: proc(fileType: cstring, fileData: rawptr, dataSize: c.int, fontSize: c.int, codepoints: [^]rune, codepointCount: c.int) -> Font ---      	           // Load font from memory buffer, fileType refers to extension: i.e. '.ttf'
	IsFontReady        :: proc(font: Font) -> bool ---                                                                                                        		   // Check if a font is ready
	LoadFontData       :: proc(fileData: rawptr, dataSize: c.int, fontSize: c.int, codepoints: [^]rune, codepointCount: c.int, type: FontType) -> [^]GlyphInfo --- 	           // Load font data for further use
	GenImageFontAtlas  :: proc(glyphs: [^]GlyphInfo, glyphRecs: ^[^]Rectangle, codepointCount: c.int, fontSize: c.int, padding: c.int, packMethod: c.int) -> Image ---         // Generate image font atlas using chars info
	UnloadFontData     :: proc(glyphs: [^]GlyphInfo, glyphCount: c.int) ---                                                                                    		   // Unload font chars info data (RAM)
	UnloadFont         :: proc(font: Font) ---                                                                                                                		   // Unload font from GPU memory (VRAM)
	ExportFontAsCode   :: proc(font: Font, fileName: cstring) -> bool ---                                                                                     		   // Export font as code file, returns true on success

	// Text drawing functions

	DrawFPS            :: proc(posX, posY: c.int) ---                                                                                             		// Draw current FPS
	DrawText           :: proc(text: cstring, posX, posY: c.int, fontSize: c.int, color: Color) ---                                               		// Draw text (using default font)
	DrawTextEx         :: proc(font: Font, text: cstring, position: Vector2, fontSize: f32, spacing: f32, tint: Color) ---                        		// Draw text using font and additional parameters
	DrawTextPro        :: proc(font: Font, text: cstring, position, origin: Vector2, rotation: f32, fontSize: f32, spacing: f32, tint: Color) --- 		// Draw text using Font and pro parameters (rotation)
	DrawTextCodepoint  :: proc(font: Font, codepoint: rune, position: Vector2, fontSize: f32, tint: Color) ---                                    		// Draw one character (codepoint)
	DrawTextCodepoints :: proc(font: Font, codepoints: [^]rune, codepointCount: c.int, position: Vector2, fontSize: f32, spacing: f32, tint: Color) ---     // Draw multiple character (codepoint)

	// Text font info functions

	SetTextLineSpacing :: proc(spacing: c.int) ---                                                      // Set vertical line spacing when drawing with line-breaks
	MeasureText        :: proc(text: cstring, fontSize: c.int) -> c.int ---                             // Measure string width for default font
	MeasureTextEx      :: proc(font: Font, text: cstring, fontSize: f32, spacing: f32) -> Vector2 ---   // Measure string size for Font
	GetGlyphIndex      :: proc(font: Font, codepoint: rune) -> c.int ---                                // Get glyph index position in font for a codepoint (unicode character), fallback to '?' if not found
	GetGlyphInfo       :: proc(font: Font, codepoint: rune) -> GlyphInfo ---                            // Get glyph font info data for a codepoint (unicode character), fallback to '?' if not found
	GetGlyphAtlasRec   :: proc(font: Font, codepoint: rune) -> Rectangle ---                            // Get glyph rectangle in font atlas for a codepoint (unicode character), fallback to '?' if not found

	// Text codepoints management functions (unicode characters)

	LoadUTF8             :: proc(codepoints: [^]rune, length: c.int) -> [^]byte --- // Load UTF-8 text encoded from codepoints array
	UnloadUTF8           :: proc(text: [^]byte) ---                                 // Unload UTF-8 text encoded from codepoints array
	LoadCodepoints       :: proc(text: rawptr, count: ^c.int) -> [^]rune ---        // Load all codepoints from a UTF-8 text string, codepoints count returned by parameter
	UnloadCodepoints     :: proc(codepoints: [^]rune) ---                           // Unload codepoints data from memory
	GetCodepointCount    :: proc(text : cstring) -> c.int ---                       // Get total number of codepoints in a UTF-8 encoded string
	GetCodepoint         :: proc(text: cstring, codepointSize: ^c.int) -> rune ---  // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure
	GetCodepointNext     :: proc(text: cstring, codepointSize: ^c.int) -> rune ---  // Get next codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure
	GetCodepointPrevious :: proc(text: cstring, codepointSize: ^c.int) -> rune ---  // Get previous codepoint in a UTF-8 encoded string, 0x3f('?') is returned on failure
	CodepointToUTF8      :: proc(codepoint: rune, utf8Size: ^c.int) -> cstring ---  // Encode one codepoint into UTF-8 byte array (array length returned as parameter)

	// Text strings management functions (no UTF-8 strings, only byte chars)
	// NOTE: Some strings allocate memory internally for returned strings, just be careful!

	TextCopy      :: proc(dst: [^]byte, src: cstring) -> c.int ---                               // Copy one string to another, returns bytes copied
	TextIsEqual   :: proc(text1, text2: cstring) -> bool ---                                     // Check if two text string are equal
	TextLength    :: proc(text: cstring) -> c.uint ---                                           // Get text length, checks for '\0' ending

	// TextFormat is defined at the bottom of this file

	TextSubtext   :: proc(text: cstring, position: c.int, length: c.int) -> cstring ---          // Get a piece of a text string
	TextReplace   :: proc(text: [^]byte, replace, by: cstring) -> [^]byte ---                    // Replace text string (WARNING: memory must be freed!)
	TextInsert    :: proc(text, insert: cstring, position: c.int) -> [^]byte ---                 // Insert text in a position (WARNING: memory must be freed!)
	TextJoin      :: proc(textList: [^]cstring, count: c.int, delimiter: cstring) -> cstring --- // Join text strings with delimiter
	TextSplit     :: proc(text: cstring, delimiter: byte, count: ^c.int) -> [^]cstring ---       // Split text into multiple strings
	TextAppend    :: proc(text: [^]byte, append: cstring, position: ^c.int) ---                  // Append text at specific position and move cursor!
	TextFindIndex :: proc(text, find: cstring) -> c.int ---                                      // Find first text occurrence within a string
	TextToUpper   :: proc(text: cstring) -> cstring ---                                          // Get upper case version of provided string
	TextToLower   :: proc(text: cstring) -> cstring ---                                          // Get lower case version of provided string
	TextToPascal  :: proc(text: cstring) -> cstring ---                                          // Get Pascal case notation version of provided string
	TextToInteger :: proc(text: cstring) -> c.int ---                                            // Get integer value from text (negative values not supported)


	//------------------------------------------------------------------------------------
	// Basic 3d Shapes Drawing Functions (Module: models)
	//------------------------------------------------------------------------------------

	// Basic geometric 3D shapes drawing functions

	DrawLine3D           :: proc(startPos, endPos: Vector3, color: Color) ---                                                   // Draw a line in 3D world space
	DrawPoint3D          :: proc(position: Vector3, color: Color) ---                                                           // Draw a point in 3D space, actually a small line
	DrawCircle3D         :: proc(center: Vector3, radius: f32, rotationAxis: Vector3, rotationAngle: f32, color: Color) ---     // Draw a circle in 3D world space
	DrawTriangle3D       :: proc(v1, v2, v3: Vector3, color: Color) ---                                                         // Draw a color-filled triangle (vertex in counter-clockwise order!)
	DrawTriangleStrip3D  :: proc(points: [^]Vector3, pointCount: c.int, color: Color) ---                                       // Draw a triangle strip defined by points
	DrawCube             :: proc(position: Vector3, width, height, length: f32, color: Color) ---                               // Draw cube
	DrawCubeV            :: proc(position: Vector3, size: Vector3, color: Color) ---                                            // Draw cube (Vector version)
	DrawCubeWires        :: proc(position: Vector3, width, height, length: f32, color: Color) ---                               // Draw cube wires
	DrawCubeWiresV       :: proc(position, size: Vector3, color: Color) ---                                                     // Draw cube wires (Vector version)
	DrawSphere           :: proc(centerPos: Vector3, radius: f32, color: Color) ---                                             // Draw sphere
	DrawSphereEx         :: proc(centerPos: Vector3, radius: f32, rings, slices: c.int, color: Color) ---                       // Draw sphere with extended parameters
	DrawSphereWires      :: proc(centerPos: Vector3, radius: f32, rings, slices: c.int, color: Color) ---                       // Draw sphere wires
	DrawCylinder         :: proc(position: Vector3, radiusTop, radiusBottom: f32, height: f32, slices: c.int, color: Color) --- // Draw a cylinder/cone
	DrawCylinderEx       :: proc(startPos, endPos: Vector3, startRadius, endRadius: f32, sides: c.int, color: Color) ---        // Draw a cylinder with base at startPos and top at endPos
	DrawCylinderWires    :: proc(position: Vector3, radiusTop, radiusBottom, height: f32, slices: c.int, color: Color) ---      // Draw a cylinder/cone wires
	DrawCylinderWiresEx  :: proc(startPos, endPos: Vector3, startRadius, endRadius: f32, sides: c.int, color: Color) ---        // Draw a cylinder wires with base at startPos and top at endPos
	DrawCapsule          :: proc(startPos, endPos: Vector3, radius: f32, slices, rings: c.int, color: Color) ---                // Draw a capsule with the center of its sphere caps at startPos and endPos
	DrawCapsuleWires     :: proc(startPos, endPos: Vector3, radius: f32, slices, rings: c.int, color: Color) ---                // Draw capsule wireframe with the center of its sphere caps at startPos and endPos
	DrawPlane            :: proc(centerPos: Vector3, size: Vector2, color: Color) ---                                           // Draw a plane XZ
	DrawRay              :: proc(ray: Ray, color: Color) ---                                                                    // Draw a ray line
	DrawGrid             :: proc(slices: c.int, spacing: f32) ---                                                               // Draw a grid (centered at (0, 0, 0))

	//------------------------------------------------------------------------------------
	// Model 3d Loading and Drawing Functions (Module: models)
	//------------------------------------------------------------------------------------

	// Model management functions

	LoadModel           :: proc(fileName: cstring) -> Model ---  // Load model from files (meshes and materials)
	LoadModelFromMesh   :: proc(mesh: Mesh) -> Model ---         // Load model from generated mesh (default material)
	IsModelReady        :: proc(model: Model) -> bool ---        // Check if a model is ready
	UnloadModel         :: proc(model: Model) ---                // Unload model (including meshes) from memory (RAM and/or VRAM)
	GetModelBoundingBox :: proc(model: Model) -> BoundingBox --- // Compute model bounding box limits (considers all meshes)

	// Model drawing functions

	DrawModel        :: proc(model: Model, position: Vector3, scale: f32, tint: Color) ---                                                                                          // Draw a model (with texture if set)
	DrawModelEx      :: proc(model: Model, position: Vector3, rotationAxis: Vector3, rotationAngle: f32, scale: Vector3, tint: Color) ---                                           // Draw a model with extended parameters
	DrawModelWires   :: proc(model: Model, position: Vector3, scale: f32, tint: Color) ---                                                                                          // Draw a model wires (with texture if set)
	DrawModelWiresEx :: proc(model: Model, position: Vector3, rotationAxis: Vector3, rotationAngle: f32, scale: Vector3, tint: Color) ---                                           // Draw a model wires (with texture if set) with extended parameters
	DrawBoundingBox  :: proc(box: BoundingBox, color: Color) ---                                                                                                                    // Draw bounding box (wires)
	DrawBillboard    :: proc(camera: Camera, texture: Texture2D, position: Vector3, size: f32, tint: Color) ---                                                                     // Draw a billboard texture
	DrawBillboardRec :: proc(camera: Camera, texture: Texture2D, source: Rectangle, position: Vector3, size: Vector2, tint: Color) ---                                              // Draw a billboard texture defined by source
	DrawBillboardPro :: proc(camera: Camera, texture: Texture2D, source: Rectangle, position: Vector3, up: Vector3, size: Vector2, origin: Vector2, rotation: f32, tint: Color) --- // Draw a billboard texture defined by source and rotation

	// Mesh management functions

	UploadMesh         :: proc(mesh: ^Mesh, is_dynamic: bool) ---                                             // Upload mesh vertex data in GPU and provide VAO/VBO ids
	UpdateMeshBuffer   :: proc(mesh: Mesh, index: c.int, data: rawptr, dataSize: c.int, offset: c.int) ---    // Update mesh vertex data in GPU for a specific buffer index
	UnloadMesh         :: proc(mesh: Mesh) ---                                                                // Unload mesh data from CPU and GPU
	DrawMesh           :: proc(mesh: Mesh, material: Material, transform: Matrix) ---                         // Draw a 3d mesh with material and transform
	DrawMeshInstanced  :: proc(mesh: Mesh, material: Material, transforms: [^]Matrix, instances: c.int) ---   // Draw multiple mesh instances with material and different transforms
	ExportMesh         :: proc(mesh: Mesh, fileName: cstring) -> bool ---                                     // Export mesh data to file, returns true on success
	GetMeshBoundingBox :: proc(mesh: Mesh) -> BoundingBox ---                                                 // Compute mesh bounding box limits
	GenMeshTangents    :: proc(mesh: ^Mesh) ---                                                               // Compute mesh tangents

	// Mesh generation functions

	GenMeshPoly       :: proc(sides: c.int, radius: f32) -> Mesh ---               // Generate polygonal mesh
	GenMeshPlane      :: proc(width, lengthL: f32, resX, resZ: c.int) -> Mesh ---  // Generate plane mesh (with subdivisions)
	GenMeshCube       :: proc(width, height, length: f32) -> Mesh ---              // Generate cuboid mesh
	GenMeshSphere     :: proc(radius: f32, rings, slices: c.int) -> Mesh ---       // Generate sphere mesh (standard sphere)
	GenMeshHemiSphere :: proc(radius: f32, rings, slices: c.int) -> Mesh ---       // Generate half-sphere mesh (no bottom cap)
	GenMeshCylinder   :: proc(radius, height: f32, slices: c.int) -> Mesh ---      // Generate cylinder mesh
	GenMeshCone       :: proc(radius, height: f32, slices: c.int) -> Mesh ---      // Generate cone/pyramid mesh
	GenMeshTorus      :: proc(radius, size: f32, radSeg, sides: c.int) -> Mesh --- // Generate torus mesh
	GenMeshKnot       :: proc(radius, size: f32, radSeg, sides: c.int) -> Mesh --- // Generate trefoil knot mesh
	GenMeshHeightmap  :: proc(heightmap: Image, size: Vector3) -> Mesh ---         // Generate heightmap mesh from image data
	GenMeshCubicmap   :: proc(cubicmap: Image, cubeSize: Vector3) -> Mesh ---      // Generate cubes-based map mesh from image data

	// Material loading/unloading functions

	LoadMaterials         :: proc(fileName: cstring, materialCount: ^c.int) -> [^]Material ---            // Load materials from model file
	LoadMaterialDefault   :: proc() -> Material ---                                                       // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
	IsMaterialReady       :: proc(material: Material) -> bool ---                                         // Check if a material is ready
	UnloadMaterial        :: proc(material: Material) ---                                                 // Unload material from GPU memory (VRAM)
	SetMaterialTexture    :: proc(material: ^Material, mapType: MaterialMapIndex, texture: Texture2D) --- // Set texture for a material map type (MATERIAL_MAP_DIFFUSE, MATERIAL_MAP_SPECULAR...)
	SetModelMeshMaterial  :: proc(model: ^Model, meshId: c.int, materialId: c.int) ---                    // Set material for a mesh

	// Model animations loading/unloading functions

	LoadModelAnimations   :: proc(fileName: cstring, animCount: ^c.int) -> [^]ModelAnimation ---  // Load model animations from file
	UpdateModelAnimation  :: proc(model: Model, anim: ModelAnimation, frame: c.int) ---           // Update model animation pose
	UnloadModelAnimation  :: proc(anim: ModelAnimation) ---                                       // Unload animation data
	UnloadModelAnimations :: proc(animations: [^]ModelAnimation, animCount: c.int) ---            // Unload animation array data
	IsModelAnimationValid :: proc(model: Model, anim: ModelAnimation) -> bool ---                 // Check model animation skeleton match

	// Collision detection functions

	CheckCollisionSpheres   :: proc(center1: Vector3, radius1: f32, center2: Vector3, radius2: f32) -> bool --- // Check collision between two spheres
	CheckCollisionBoxes     :: proc(box1, box2: BoundingBox) -> bool ---                                        // Check collision between two bounding boxes
	CheckCollisionBoxSphere :: proc(box: BoundingBox, center: Vector3, radius: f32) -> bool ---                 // Check collision between box and sphere
	GetRayCollisionSphere   :: proc(ray: Ray, center: Vector3, radius: f32) -> RayCollision ---                 // Get collision info between ray and sphere
	GetRayCollisionBox      :: proc(ray: Ray, box: BoundingBox) -> RayCollision ---                             // Get collision info between ray and box
	GetRayCollisionMesh     :: proc(ray: Ray, mesh: Mesh, transform: Matrix) -> RayCollision ---                // Get collision info between ray and mesh
	GetRayCollisionTriangle :: proc(ray: Ray, p1, p2, p3: Vector3) -> RayCollision ---                          // Get collision info between ray and triangle
	GetRayCollisionQuad     :: proc(ray: Ray, p1, p2, p3, p4: Vector3) -> RayCollision ---                      // Get collision info between ray and quad

	//------------------------------------------------------------------------------------
	// Audio Loading and Playing Functions (Module: audio)
	//------------------------------------------------------------------------------------

	// Audio device management functions

	InitAudioDevice    :: proc() ---            // Initialize audio device and context
	CloseAudioDevice   :: proc() ---            // Close the audio device and context
	IsAudioDeviceReady :: proc() -> bool ---    // Check if audio device has been initialized successfully
	SetMasterVolume    :: proc(volume: f32) --- // Set master volume (listener)
	GetMasterVolume    :: proc() -> f32 ---     // Get master volume (listener)

	// Wave/Sound loading/unloading functions

	LoadWave           :: proc(fileName: cstring) -> Wave ---                                    // Load wave data from file
	LoadWaveFromMemory :: proc(fileType: cstring, fileData: rawptr, dataSize: c.int) -> Wave --- // Load wave from memory buffer, fileType refers to extension: i.e. '.wav'
	IsWaveReady        :: proc(wave: Wave) -> bool ---                                           // Checks if wave data is ready
	LoadSound          :: proc(fileName: cstring) -> Sound ---                                   // Load sound from file
	LoadSoundFromWave  :: proc(wave: Wave) -> Sound ---                                          // Load sound from wave data
	LoadSoundAlias	   :: proc(source: Sound) -> Sound ---                                       // Create a new sound that shares the same sample data as the source sound, does not own the sound data
	IsSoundReady       :: proc(sound: Sound) -> bool ---                                         // Checks if a sound is ready
	UpdateSound        :: proc(sound: Sound, data: rawptr, frameCount: c.int) ---                // Update sound buffer with new data
	UnloadWave         :: proc(wave: Wave) ---                                                   // Unload wave data
	UnloadSound        :: proc(sound: Sound) ---                                                 // Unload sound
	UnloadSoundAlias   :: proc(alias: Sound) ---                                                 // Unload a sound alias (does not deallocate sample data)
	ExportWave         :: proc(wave: Wave, fileName: cstring) -> bool ---                        // Export wave data to file, returns true on success
	ExportWaveAsCode   :: proc(wave: Wave, fileName: cstring) -> bool ---                        // Export wave sample data to code (.h), returns true on success

	// Wave/Sound management functions

	PlaySound         :: proc(sound: Sound) ---                                                // Play a sound
	StopSound         :: proc(sound: Sound) ---                                                // Stop playing a sound
	PauseSound        :: proc(sound: Sound) ---                                                // Pause a sound
	ResumeSound       :: proc(sound: Sound) ---                                                // Resume a paused sound
	IsSoundPlaying    :: proc(sound: Sound) -> bool ---                                        // Check if a sound is currently playing
	SetSoundVolume    :: proc(sound: Sound, volume: f32) ---                                   // Set volume for a sound (1.0 is max level)
	SetSoundPitch     :: proc(sound: Sound, pitch: f32) ---                                    // Set pitch for a sound (1.0 is base level)
	SetSoundPan       :: proc(sound: Sound, pan: f32) ---                                      // Set pan for a sound (0.5 is center)
	WaveCopy          :: proc(wave: Wave) -> Wave ---                                          // Copy a wave to a new wave
	WaveCrop          :: proc(wave: ^Wave, initSample, finalSample: c.int) ---                 // Crop a wave to defined samples range
	WaveFormat        :: proc(wave: ^Wave, sampleRate, sampleSize: c.int, channels: c.int) --- // Convert wave data to desired format
	LoadWaveSamples   :: proc(wave: Wave) -> [^]f32 ---                                        // Load samples data from wave as a 32bit float data array
	UnloadWaveSamples :: proc(samples: [^]f32) ---                                             // Unload samples data loaded with LoadWaveSamples()


	// Music management functions

	LoadMusicStream           :: proc(fileName: cstring) -> Music ---                                // Load music stream from file
	LoadMusicStreamFromMemory :: proc(fileType: cstring, data: rawptr, dataSize: c.int) -> Music --- // Load music stream from data
	IsMusicReady              :: proc(music: Music) -> bool ---                                      // Checks if a music stream is ready
	UnloadMusicStream         :: proc(music: Music) ---                                              // Unload music stream
	PlayMusicStream           :: proc(music: Music) ---                                              // Start music playing
	IsMusicStreamPlaying      :: proc(music: Music) -> bool ---                                      // Check if music is playing
	UpdateMusicStream         :: proc(music: Music) ---                                              // Updates buffers for music streaming
	StopMusicStream           :: proc(music: Music) ---                                              // Stop music playing
	PauseMusicStream          :: proc(music: Music) ---                                              // Pause music playing
	ResumeMusicStream         :: proc(music: Music) ---                                              // Resume playing paused music
	SeekMusicStream           :: proc(music: Music, position: f32) ---                               // Seek music to a position (in seconds)
	SetMusicVolume            :: proc(music: Music, volume: f32) ---                                 // Set volume for music (1.0 is max level)
	SetMusicPitch             :: proc(music: Music, pitch: f32) ---                                  // Set pitch for a music (1.0 is base level)
	SetMusicPan               :: proc(music: Music, pan: f32) ---                                    // Set pan for a music (0.5 is center)
	GetMusicTimeLength        :: proc(music: Music) -> f32 ---                                       // Get music time length (in seconds)
	GetMusicTimePlayed        :: proc(music: Music) -> f32 ---                                       // Get current music time played (in seconds)

	// AudioStream management functions

	LoadAudioStream                 :: proc(sampleRate, sampleSize: c.uint, channels: c.uint) -> AudioStream --- // Load audio stream (to stream raw audio pcm data)
	IsAudioStreamReady              :: proc(stream: AudioStream) -> bool ---                                     // Checks if an audio stream is ready
	UnloadAudioStream               :: proc(stream: AudioStream) ---                                             // Unload audio stream and free memory
	UpdateAudioStream               :: proc(stream: AudioStream, data: rawptr, frameCount: c.int) ---            // Update audio stream buffers with data
	IsAudioStreamProcessed          :: proc(stream: AudioStream) -> bool ---                                     // Check if any audio stream buffers requires refill
	PlayAudioStream                 :: proc(stream: AudioStream) ---                                             // Play audio stream
	PauseAudioStream                :: proc(stream: AudioStream) ---                                             // Pause audio stream
	ResumeAudioStream               :: proc(stream: AudioStream) ---                                             // Resume audio stream
	IsAudioStreamPlaying            :: proc(stream: AudioStream) -> bool ---                                     // Check if audio stream is playing
	StopAudioStream                 :: proc(stream: AudioStream) ---                                             // Stop audio stream
	SetAudioStreamVolume            :: proc(stream: AudioStream, volume: f32) ---                                // Set volume for audio stream (1.0 is max level)
	SetAudioStreamPitch             :: proc(stream: AudioStream, pitch: f32) ---                                 // Set pitch for audio stream (1.0 is base level)
	SetAudioStreamPan               :: proc(stream: AudioStream, pan: f32) ---                                   // Set pan for audio stream (0.5 is centered)
	SetAudioStreamBufferSizeDefault :: proc(size: c.int) ---                                                     // Default size for new audio streams
	SetAudioStreamCallback          :: proc(stream: AudioStream, callback: AudioCallback) ---                    // Audio thread callback to request new data

	AttachAudioStreamProcessor :: proc(stream: AudioStream, processor: AudioCallback) --- // Attach audio stream processor to stream, receives the samples as <float>s
	DetachAudioStreamProcessor :: proc(stream: AudioStream, processor: AudioCallback) --- // Detach audio stream processor from stream

	AttachAudioMixedProcessor :: proc(processor: AudioCallback) --- // Attach audio stream processor to the entire audio pipeline, receives the samples as <float>s
	DetachAudioMixedProcessor :: proc(processor: AudioCallback) --- // Detach audio stream processor from the entire audio pipeline
}

// Workaround for broken IsMouseButtonUp in Raylib 5.0.
when VERSION == "5.0" {
	IsMouseButtonUp :: proc "c" (button: MouseButton) -> bool {
		return !IsMouseButtonDown(button)
	}
} else {
	#panic("Remove this this when block and everything inside it for Raylib > 5.0. It's just here to fix a bug in Raylib 5.0. See IsMouseButtonUp inside 'foreign lib {' block.")
}

//  Check if a gesture have been detected
IsGestureDetected :: proc "c" (gesture: Gesture) -> bool {
	@(default_calling_convention="c")
	foreign lib {
		IsGestureDetected :: proc "c" (gesture: Gestures) -> bool ---
	}
	return IsGestureDetected({gesture})
}


// Text formatting with variables (sprintf style)
TextFormat :: proc(text: cstring, args: ..any) -> cstring {
	@static buffers: [MAX_TEXTFORMAT_BUFFERS][MAX_TEXT_BUFFER_LENGTH]byte
	@static index: u32
	
	buffer := buffers[index][:]
	mem.zero_slice(buffer)
	
	index = (index+1)%MAX_TEXTFORMAT_BUFFERS
	
	str := fmt.bprintf(buffer[:len(buffer)-1], string(text), ..args)
	buffer[len(str)] = 0
	
	return cstring(raw_data(buffer))
}

// Text formatting with variables (sprintf style) and allocates (must be freed with 'MemFree')
TextFormatAlloc :: proc(text: cstring, args: ..any) -> cstring {
	str := fmt.tprintf(string(text), ..args)
	return strings.clone_to_cstring(str, MemAllocator())
}


MemAllocator :: proc "contextless" () -> mem.Allocator {
	return mem.Allocator{MemAllocatorProc, nil}
}

MemAllocatorProc :: proc(allocator_data: rawptr, mode: mem.Allocator_Mode,
                         size, alignment: int,
                         old_memory: rawptr, old_size: int, location := #caller_location) -> (data: []byte, err: mem.Allocator_Error)  {
	switch mode {
	case .Alloc, .Alloc_Non_Zeroed:
		ptr := MemAlloc(c.uint(size))
		if ptr == nil {
			err = .Out_Of_Memory
			return
		}
		data = mem.byte_slice(ptr, size)
		return
	case .Free:
		MemFree(old_memory)
		return nil, nil
	
	case .Resize, .Resize_Non_Zeroed:
		ptr := MemRealloc(old_memory, c.uint(size))
		if ptr == nil {
			err = .Out_Of_Memory
			return
		}
		data = mem.byte_slice(ptr, size)
		return
	
	case .Free_All, .Query_Features, .Query_Info:
		return nil, .Mode_Not_Implemented
	}	
	return nil, .Mode_Not_Implemented
}