int main()
{
// Initialization
//--------------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - skybox loading and drawing");
// Define the camera to look into our 3d world
Camera camera = {{ 1.0f, 1.0f, 1.0f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
// Load skybox model
Mesh cube = GenMeshCube(1.0f, 1.0f, 1.0f);
Model skybox = LoadModelFromMesh(cube);
// Load skybox shader and set required locations
// NOTE: Some locations are automatically set at shader loading
skybox.material.shader = LoadShader("resources/shaders/skybox.vs", "resources/shaders/skybox.fs");
SetShaderValuei(skybox.material.shader, GetShaderLocation(skybox.material.shader, "environmentMap"), (int[1]){ MAP_CUBEMAP }, 1);
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - first person maze");
// Define the camera to look into our 3d world
Camera camera = { { 0.2f, 0.4f, 0.2f }, { 0.0f, 0.0f, 0.0f }, { 0.0f, 1.0f, 0.0f }, 45.0f, 0 };
Image imMap = LoadImage("resources/cubicmap.png"); // Load cubicmap image (RAM)
Texture2D cubicmap = LoadTextureFromImage(imMap); // Convert image to texture to display (VRAM)
Mesh mesh = GenMeshCubicmap(imMap, (Vector3){ 1.0f, 1.0f, 1.0f });
Model model = LoadModelFromMesh(mesh);
// NOTE: By default each cube is mapped to one part of texture atlas
Texture2D texture = LoadTexture("resources/cubicmap_atlas.png"); // Load map texture
model.materials[0].maps[MAP_DIFFUSE].texture = texture; // Set map diffuse texture
// Get map image data to be used for collision detection
Color *mapPixels = GetImageData(imMap);
UnloadImage(imMap); // Unload image from RAM
Vector3 mapPosition = { -16.0f, 0.0f, -8.0f }; // Set model position
Vector3 playerPosition = camera.position; // Set player position
SetCameraMode(camera, CAMERA_FIRST_PERSON); // Set camera mode
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
//----------------------------------------------------------------------------------
Vector3 oldCamPos = camera.position; // Store old camera position
UpdateCamera(&camera); // Update camera
// Check player collision (we simplify to 2D collision detection)
Vector2 playerPos = { camera.position.x, camera.position.z };
float playerRadius = 0.1f; // Collision radius (player is modelled as a cilinder for collision)
int playerCellX = (int)(playerPos.x - mapPosition.x + 0.5f);
int playerCellY = (int)(playerPos.y - mapPosition.z + 0.5f);
// Out-of-limits security check
if (playerCellX < 0) playerCellX = 0;
else if (playerCellX >= cubicmap.width) playerCellX = cubicmap.width - 1;
if (playerCellY < 0) playerCellY = 0;
else if (playerCellY >= cubicmap.height) playerCellY = cubicmap.height - 1;
// Check map collisions using image data and player position
// TODO: Improvement: Just check player surrounding cells for collision
for (int y = 0; y < cubicmap.height; y++)
{
for (int x = 0; x < cubicmap.width; x++)
{
if ((mapPixels[y*cubicmap.width + x].r == 255) && // Collision: white pixel, only check R channel
(CheckCollisionCircleRec(playerPos, playerRadius,
(Rectangle){ mapPosition.x - 0.5f + x*1.0f, mapPosition.z - 0.5f + y*1.0f, 1.0f, 1.0f })))
{
// Collision detected, reset camera position
camera.position = oldCamPos;
}
}
}
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
BeginMode3D(camera);
DrawModel(model, mapPosition, 1.0f, WHITE); // Draw maze map
//DrawCubeV(playerPosition, (Vector3){ 0.2f, 0.4f, 0.2f }, RED); // Draw player
EndMode3D();
DrawTextureEx(cubicmap, (Vector2){ GetScreenWidth() - cubicmap.width*4 - 20, 20 }, 0.0f, 4.0f, WHITE);
DrawRectangleLines(GetScreenWidth() - cubicmap.width*4 - 20, 20, cubicmap.width*4, cubicmap.height*4, GREEN);
// Draw player position radar
DrawRectangle(GetScreenWidth() - cubicmap.width*4 - 20 + playerCellX*4, 20 + playerCellY*4, 4, 4, RED);
DrawFPS(10, 10);
EndDrawing();
//----------------------------------------------------------------------------------
}
// De-Initialization
//--------------------------------------------------------------------------------------
free(mapPixels); // Unload color array
UnloadTexture(cubicmap); // Unload cubicmap texture
UnloadTexture(texture); // Unload map texture
UnloadModel(model); // Unload map model
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------
return 0;
}
