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@@ -125,11 +125,72 @@
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} Vector2;
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#endif
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+//----------------------------------------------------------------------------------
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+// Data Types Structure Definition
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+//----------------------------------------------------------------------------------
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+
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typedef enum PhysicsShapeType { PHYSICS_CIRCLE, PHYSICS_POLYGON } PhysicsShapeType;
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// Previously defined to be used in PhysicsShape struct as circular dependencies
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typedef struct PhysicsBodyData *PhysicsBody;
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+// Matrix2x2 type (used for polygon shape rotation matrix)
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+typedef struct Matrix2x2 {
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+ float m00;
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+ float m01;
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+ float m10;
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+ float m11;
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+} Matrix2x2;
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+
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+typedef struct PolygonData {
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+ unsigned int vertexCount; // Current used vertex and normals count
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+ Vector2 positions[PHYSAC_MAX_VERTICES]; // Polygon vertex positions vectors
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+ Vector2 normals[PHYSAC_MAX_VERTICES]; // Polygon vertex normals vectors
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+} PolygonData;
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+
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+typedef struct PhysicsShape {
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+ PhysicsShapeType type; // Physics shape type (circle or polygon)
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+ PhysicsBody body; // Shape physics body reference
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+ float radius; // Circle shape radius (used for circle shapes)
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+ Matrix2x2 transform; // Vertices transform matrix 2x2
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+ PolygonData vertexData; // Polygon shape vertices position and normals data (just used for polygon shapes)
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+} PhysicsShape;
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+
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+typedef struct PhysicsBodyData {
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+ unsigned int id; // Reference unique identifier
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+ bool enabled; // Enabled dynamics state (collisions are calculated anyway)
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+ Vector2 position; // Physics body shape pivot
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+ Vector2 velocity; // Current linear velocity applied to position
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+ Vector2 force; // Current linear force (reset to 0 every step)
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+ float angularVelocity; // Current angular velocity applied to orient
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+ float torque; // Current angular force (reset to 0 every step)
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+ float orient; // Rotation in radians
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+ float inertia; // Moment of inertia
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+ float inverseInertia; // Inverse value of inertia
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+ float mass; // Physics body mass
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+ float inverseMass; // Inverse value of mass
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+ float staticFriction; // Friction when the body has not movement (0 to 1)
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+ float dynamicFriction; // Friction when the body has movement (0 to 1)
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+ float restitution; // Restitution coefficient of the body (0 to 1)
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+ bool useGravity; // Apply gravity force to dynamics
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+ bool isGrounded; // Physics grounded on other body state
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+ bool freezeOrient; // Physics rotation constraint
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+ PhysicsShape shape; // Physics body shape information (type, radius, vertices, normals)
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+} PhysicsBodyData;
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+
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+typedef struct PhysicsManifoldData {
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+ unsigned int id; // Reference unique identifier
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+ PhysicsBody bodyA; // Manifold first physics body reference
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+ PhysicsBody bodyB; // Manifold second physics body reference
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+ float penetration; // Depth of penetration from collision
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+ Vector2 normal; // Normal direction vector from 'a' to 'b'
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+ Vector2 contacts[2]; // Points of contact during collision
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+ unsigned int contactsCount; // Current collision number of contacts
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+ float restitution; // Mixed restitution during collision
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+ float dynamicFriction; // Mixed dynamic friction during collision
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+ float staticFriction; // Mixed static friction during collision
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+} PhysicsManifoldData, *PhysicsManifold;
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+
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#if defined(__cplusplus)
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extern "C" { // Prevents name mangling of functions
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#endif
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@@ -221,67 +282,6 @@ PHYSACDEF void ClosePhysics(void);
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#define PHYSAC_K 1.0f/3.0f
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#define PHYSAC_VECTOR_ZERO (Vector2){ 0.0f, 0.0f }
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-//----------------------------------------------------------------------------------
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-// Data Types Structure Definition
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-//----------------------------------------------------------------------------------
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-
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-// Matrix2x2 type (used for polygon shape rotation matrix)
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-typedef struct Matrix2x2 {
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- float m00;
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- float m01;
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- float m10;
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- float m11;
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-} Matrix2x2;
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-
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-typedef struct PolygonData {
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- unsigned int vertexCount; // Current used vertex and normals count
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- Vector2 positions[PHYSAC_MAX_VERTICES]; // Polygon vertex positions vectors
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- Vector2 normals[PHYSAC_MAX_VERTICES]; // Polygon vertex normals vectors
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-} PolygonData;
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-
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-typedef struct PhysicsShape {
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- PhysicsShapeType type; // Physics shape type (circle or polygon)
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- PhysicsBody body; // Shape physics body reference
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- float radius; // Circle shape radius (used for circle shapes)
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- Matrix2x2 transform; // Vertices transform matrix 2x2
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- PolygonData vertexData; // Polygon shape vertices position and normals data (just used for polygon shapes)
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-} PhysicsShape;
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-
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-typedef struct PhysicsBodyData {
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- unsigned int id; // Reference unique identifier
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- bool enabled; // Enabled dynamics state (collisions are calculated anyway)
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- Vector2 position; // Physics body shape pivot
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- Vector2 velocity; // Current linear velocity applied to position
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- Vector2 force; // Current linear force (reset to 0 every step)
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- float angularVelocity; // Current angular velocity applied to orient
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- float torque; // Current angular force (reset to 0 every step)
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- float orient; // Rotation in radians
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- float inertia; // Moment of inertia
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- float inverseInertia; // Inverse value of inertia
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- float mass; // Physics body mass
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- float inverseMass; // Inverse value of mass
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- float staticFriction; // Friction when the body has not movement (0 to 1)
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- float dynamicFriction; // Friction when the body has movement (0 to 1)
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- float restitution; // Restitution coefficient of the body (0 to 1)
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- bool useGravity; // Apply gravity force to dynamics
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- bool isGrounded; // Physics grounded on other body state
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- bool freezeOrient; // Physics rotation constraint
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- PhysicsShape shape; // Physics body shape information (type, radius, vertices, normals)
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-} PhysicsBodyData;
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-
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-typedef struct PhysicsManifoldData {
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- unsigned int id; // Reference unique identifier
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- PhysicsBody bodyA; // Manifold first physics body reference
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- PhysicsBody bodyB; // Manifold second physics body reference
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- float penetration; // Depth of penetration from collision
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- Vector2 normal; // Normal direction vector from 'a' to 'b'
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- Vector2 contacts[2]; // Points of contact during collision
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- unsigned int contactsCount; // Current collision number of contacts
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- float restitution; // Mixed restitution during collision
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- float dynamicFriction; // Mixed dynamic friction during collision
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- float staticFriction; // Mixed static friction during collision
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-} PhysicsManifoldData, *PhysicsManifold;
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-
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//----------------------------------------------------------------------------------
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// Global Variables Definition
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//----------------------------------------------------------------------------------
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Ray