/*******************************************************************************************
*
*   raylib [models] example - first person maze
*
*   This example has been created using raylib 2.5 (www.raylib.com)
*   raylib is licensed under an unmodified zlib/libpng license (View raylib.h for details)
*
*   Copyright (c) 2019 Ramon Santamaria (@raysan5)
*
********************************************************************************************/

#include "raylib.h"

int main()
{
    // Initialization
    //--------------------------------------------------------------------------------------
    int screenWidth = 800;
    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 image = LoadImage("resources/cubicmap.png");      // Load cubicmap image (RAM)
    Texture2D cubicmap = LoadTextureFromImage(image);       // Convert image to texture to display (VRAM)
    Mesh mesh = GenMeshCubicmap(image, (Vector3){ 1.0f, 1.0f, 1.0f });
    Model model = LoadModelFromMesh(mesh);
    UnloadImage(image);     // Unload cubesmap image from RAM, already uploaded to VRAM
    
    // 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
    
    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
        //----------------------------------------------------------------------------------
        UpdateCamera(&camera);      // Update camera
        //----------------------------------------------------------------------------------

        // 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);

            DrawFPS(10, 10);

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    UnloadTexture(cubicmap);    // Unload cubicmap texture
    UnloadTexture(texture);     // Unload map texture
    UnloadModel(model);         // Unload map model

    CloseWindow();              // Close window and OpenGL context
    //--------------------------------------------------------------------------------------

    return 0;
}