| 242 | var cameraInitMutex sync.Mutex |
| 243 | |
| 244 | func addCameraSystemOnce(w *ecs.World) { |
| 245 | cameraInitMutex.Lock() |
| 246 | defer cameraInitMutex.Unlock() |
| 247 | |
| 248 | camSystemAlreadyAdded := false |
| 249 | for _, system := range w.Systems() { |
| 250 | switch system.(type) { |
| 251 | case *CameraSystem: |
| 252 | camSystemAlreadyAdded = true |
| 253 | } |
| 254 | } |
| 255 | if !camSystemAlreadyAdded { |
| 256 | w.AddSystem(&CameraSystem{}) |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | // Add adds an entity to the RenderSystem. The entity needs a basic, render, and space component to be added to the system. |
| 261 | func (rs *RenderSystem) Add(basic *ecs.BasicEntity, render *RenderComponent, space *SpaceComponent) { |