Engine plugins

An engine plugin registers components, systems, and resources behind one Init() call. The built-in plugins:

Plugin	Registers
PositionPlugin	Position, PositionSystem
RotationPlugin	Rotation
HierarchyPlugin	Parent, HierarchySystem
SpritePlugin	SpriteComponent, SpriteSystem, AssetManager
ShapePlugin	ShapeComponent, ShapeSystem, plus OpacityPlugin
TextPlugin	Text, TextSystem
CameraPlugin	CameraComponent, CameraSystem
ColliderPlugin	ColliderComponent, CollisionEvents, CollisionSystem
InputPlugin	Input, InputManager
AudioPlugin	AudioSource, AudioSystem, AssetManager
OpacityPlugin	Opacity
SignalPlugin	SignalConnections
ScriptPlugin	ScriptComponent, ScriptSystem
ReplicationPlugin	NetworkComponent, ReplicationSystem
MultiplayerPlugin	PlayerInformation, network resources, MultiplayerSystem

ReplicationPlugin must register before MultiplayerPlugin. See Networking.

Writing your own

class AudioPlugin : public Engine::IPlugin {
  public:
    void Init(Engine::Registry& registry) override {
        if (!registry.HasResource<Engine::AssetManager>()) {
            registry.AddResource<Engine::AssetManager>();
        }
        registry.RegisterComponent<Engine::AudioSource>();
        registry.RegisterSystem<Engine::AudioSystem>();
    }
};

Order inside Init(): resources first, then components, then systems. Guard shared resources with HasResource<T>().

Attaching data

Some plugins expose static helpers (AttachToEntity) so callers do not have to know the component layout. See Plugins (engine).

Scaffolding

./RTypeEditor create plugin Health

Writes the header, source, and CMake entries. See Command line.