import "raylib";

Tile :: struct {
    value: int;
}

Map :: struct {
    tiles: *Tile;
    x: int;
    y: int;
}

CreateMap :: proc(x: int, y: int, map: *int): Map {
    result: Map = {x = x, y = y};
    result.tiles = MemAlloc(:uint(x*y) * sizeof(:Tile));

    for i := 0; i < x*y; i += 1 {
        result.tiles[i].value = map[i];
    }
    return result;
}

main :: proc(): int {
    TestArena();
    return 0;
    InitWindow(800, 600, "Thing");
    SetTargetFPS(60);

    XPIX :: 32;
    YPIX :: 32;

    camera: Camera2D = {
        zoom = 1.0,
    };

    _map_x :: 8;
    _map_y :: 8;
    map := CreateMap(_map_x, _map_y, &:[_map_x * _map_y]int{
        1,0,0,0,0,0,0,0,
        0,0,0,0,0,0,0,0,
        0,0,0,0,0,0,0,0,
        0,0,0,0,0,0,0,0,
        1,0,0,0,0,0,0,1,
        0,0,0,0,1,0,0,0,
        0,0,0,0,0,0,0,0,
        0,0,0,0,0,0,0,0,
    }[0]);

    for !WindowShouldClose() {
        if IsMouseButtonDown(MOUSE_BUTTON_LEFT) {
            delta := GetMouseDelta();
            camera.offset = Vector2Add(camera.offset, delta);
        }

        BeginDrawing();
        ClearBackground(RAYWHITE);

        BeginMode2D(camera);
        for y_it := 0; y_it < map.y; y_it += 1 {
            for x_it := 0; x_it < map.x; x_it += 1 {
                tile := &map.tiles[x_it + y_it * map.x];
                original_rect := RectFromSize({XPIX * :float(x_it), YPIX * :float(y_it)}, {XPIX, YPIX});
                rect := Shrink(original_rect, 2);

                r := RectToRectangle(rect);

                min_screen := GetWorldToScreen2D(original_rect.min, camera);
                size := GetRectSize(original_rect);

                screen_rect: Rectangle = {min_screen.x, min_screen.y, size.x, size.y};
                mouse_p := GetMousePosition();

                if tile.value == 1 {
                    DrawRectangleRec(r, RED);
                } else {
                    DrawRectangleRec(r, GREEN);
                }

                if CheckCollisionPointRec(mouse_p, screen_rect) {
                    DrawRectangleRec(r, BLUE);
                }
            }
        }
        EndMode2D();

        // DrawText("Congrats! You created your first window!", 190, 200, 20, LIGHTGRAY);
        EndDrawing();
    }

    CloseWindow();
    return 0;
}