Added example: box collisions

examples/makefile

@@ -179,6 +179,7 @@ EXAMPLES = \
     text_format_text \
     text_font_select \
     models_geometric_shapes \
+    models_box_collisions \
     models_billboard \
     models_obj_loading \
     models_heightmap \
@@ -325,6 +326,10 @@ text_font_select: text_font_select.c
 models_geometric_shapes: models_geometric_shapes.c
 	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDES) $(LFLAGS) $(LIBS) -D$(PLATFORM) $(WINFLAGS)
 
+# compile [models] example - box collisions
+models_box_collisions: models_box_collisions.c
+	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDES) $(LFLAGS) $(LIBS) -D$(PLATFORM) $(WINFLAGS)
+    
 # compile [models] example - basic window
 models_planes: models_planes.c
 	$(CC) -o $@$(EXT) $< $(CFLAGS) $(INCLUDES) $(LFLAGS) $(LIBS) -D$(PLATFORM) $(WINFLAGS)

examples/models_box_collisions.c

@@ -0,0 +1,119 @@
+/*******************************************************************************************
+*
+*   raylib [models] example - Detect basic 3d collisions (box vs sphere vs box)
+*
+*   This example has been created using raylib 1.3 (www.raylib.com)
+*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
+*
+*   Copyright (c) 2015 Ramon Santamaria (@raysan5)
+*
+********************************************************************************************/
+
+#include "raylib.h"
+
+int main()
+{
+    // Initialization
+    //--------------------------------------------------------------------------------------
+    int screenWidth = 800;
+    int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [models] example - box collisions");
+
+    // Define the camera to look into our 3d world
+    Camera camera = {{ 0.0, 10.0, 10.0 }, { 0.0, 0.0, 0.0 }, { 0.0, 1.0, 0.0 }};
+    
+    Vector3 playerPosition = { 0, 1, 2 };
+    Vector3 playerSize = { 1, 2, 1 };
+    Color playerColor = GREEN;
+    
+    Vector3 enemyBoxPos = { -4, 1, 0 };
+    Vector3 enemyBoxSize = { 2, 2, 2 };
+    
+    Vector3 enemySpherePos = { 4, 0, 0 };
+    float enemySphereSize = 1.5f;
+    
+    bool collision = false;
+
+    SetTargetFPS(60);   // Set our game to run at 60 frames-per-second
+    //--------------------------------------------------------------------------------------
+
+    // Main game loop
+    while (!WindowShouldClose())    // Detect window close button or ESC key
+    {
+        // Update
+        //----------------------------------------------------------------------------------
+        
+        // Move player
+        if (IsKeyDown(KEY_RIGHT)) playerPosition.x += 0.2f;
+        else if (IsKeyDown(KEY_LEFT)) playerPosition.x -= 0.2f;
+        else if (IsKeyDown(KEY_DOWN)) playerPosition.z += 0.2f;
+        else if (IsKeyDown(KEY_UP)) playerPosition.z -= 0.2f;
+        
+        collision = false;
+        
+        // Check collisions player vs enemy-box
+        if (CheckCollisionBoxes((Vector3){ playerPosition.x - playerSize.x/2, 
+                                           playerPosition.y - playerSize.y/2, 
+                                           playerPosition.z - playerSize.z/2 }, 
+                                (Vector3){ playerPosition.x + playerSize.x/2,
+                                           playerPosition.y + playerSize.y/2, 
+                                           playerPosition.z + playerSize.z/2 },
+                                (Vector3){ enemyBoxPos.x - enemyBoxSize.x/2, 
+                                           enemyBoxPos.y - enemyBoxSize.y/2, 
+                                           enemyBoxPos.z - enemyBoxSize.z/2 }, 
+                                (Vector3){ enemyBoxPos.x + enemyBoxSize.x/2,
+                                           enemyBoxPos.y + enemyBoxSize.y/2, 
+                                           enemyBoxPos.z + enemyBoxSize.z/2 })) collision = true;
+        
+        // Check collisions player vs enemy-sphere
+        if (CheckCollisionBoxSphere((Vector3){ playerPosition.x - playerSize.x/2, 
+                                               playerPosition.y - playerSize.y/2, 
+                                               playerPosition.z - playerSize.z/2 }, 
+                                    (Vector3){ playerPosition.x + playerSize.x/2,
+                                               playerPosition.y + playerSize.y/2, 
+                                               playerPosition.z + playerSize.z/2 }, 
+                                               enemySpherePos, enemySphereSize)) collision = true;
+        
+        if (collision) playerColor = RED;
+        else playerColor = GREEN;
+        //----------------------------------------------------------------------------------
+
+        // Draw
+        //----------------------------------------------------------------------------------
+        BeginDrawing();
+
+            ClearBackground(RAYWHITE);
+
+            Begin3dMode(camera);
+
+                // Draw enemy-box
+                DrawCube(enemyBoxPos, enemyBoxSize.x, enemyBoxSize.y, enemyBoxSize.z, GRAY);
+                DrawCubeWires(enemyBoxPos, enemyBoxSize.x, enemyBoxSize.y, enemyBoxSize.z, DARKGRAY);
+                
+                // Draw enemy-sphere
+                DrawSphere(enemySpherePos, enemySphereSize, GRAY);
+                DrawSphereWires(enemySpherePos, enemySphereSize, 16, 16, DARKGRAY);
+                
+                // Draw player
+                DrawCubeV(playerPosition, playerSize, playerColor);
+
+                DrawGrid(10.0, 1.0);        // Draw a grid
+
+            End3dMode();
+            
+            DrawText("Move player with cursors to collide", 220, 40, 20, GRAY);
+
+            DrawFPS(10, 10);
+
+        EndDrawing();
+        //----------------------------------------------------------------------------------
+    }
+
+    // De-Initialization
+    //--------------------------------------------------------------------------------------
+    CloseWindow();        // Close window and OpenGL context
+    //--------------------------------------------------------------------------------------
+
+    return 0;
+}