Engine

First you need to create an engine, use this line in your main function:

EngineContext my_engine_ctx;

You will use the object a lot of time during the creation of your project

Load scenes

To add scene to your engine use this line:

my_engine_ctx.add_scene_loader("main_menu", load_main_menu_scene);

This line link the function load_main_menu_scene(engn::EngineContext& engine_ctx) to the value main_menu

Then you can use it like this to change between all your scene:

engine_ctx.set_scene("main_menu");

A scene loader function should look like this:

void load_game_scene(engn::EngineContext& engine_ctx) {
    // Your scene
}

Load texture

Loading the textures in the engine is very easy, all you need to do is add this line:

my_engine_ctx.assets_manager.load_texture("img", "assets/sprites/image.png");

This would load a texture called img using the file stored at this path: assets/sprites/image.png, you can then use the texture by calling it when you need it.

info

To load musics and sound use the load_music() and load_sound() function:

engine_ctx.assets_manager.load_music("menu_music", "assets/music/Menu_music.mp3");
engine_ctx.assets_manager.load_sound("shoot_sound", "assets/music/Blaster.mp3");