71 lines
1.5 KiB
Markdown
71 lines
1.5 KiB
Markdown
|
# scene_component
|
||
|
|
这是一个场景组件的基类，如果您需要一个不在实体上的组件则继承它 `es.SceneComponent`。场景组件默认包含`update`/`onEnabled`/`onDisabled`/`onRemovedFromScene`，你可以对他们进行重载。
|
||
|
|
|
||
|
|
```typescript
|
||
|
|
export class ASceneComponent extends es.SceneComponent {
|
||
|
|
/**
|
||
|
|
* 在启用此SceneComponent时调用
|
||
|
|
*/
|
||
|
|
onEnabled() {
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 当禁用此SceneComponent时调用
|
||
|
|
*/
|
||
|
|
onDisabled() {
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 当该SceneComponent从场景中移除时调用
|
||
|
|
*/
|
||
|
|
onRemovedFromScene() {
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
update() {
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
- 场景组件需要添加至场景上, 通过场景中的 `addSceneComponent` 方法加入。
|
||
|
|
|
||
|
|
```typescript
|
||
|
|
export class MainScene extends es.Scene {
|
||
|
|
onStart() {
|
||
|
|
const aSceneCom = this.addSceneComponent(new ASceneComponent());
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
- 如果想要获取该场景组件则通过`getSceneComponent`方法获取
|
||
|
|
|
||
|
|
```typescript
|
||
|
|
export class MainScene extends es.Scene {
|
||
|
|
onStart() {
|
||
|
|
const aSceneCom = this.getSceneComponent(ASceneComponent);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
- 如果获取时发现没有可以自动创建则通过 `getOrCreateSceneComponent` 方法
|
||
|
|
|
||
|
|
```typescript
|
||
|
|
export class MainScene extends es.Scene {
|
||
|
|
onStart() {
|
||
|
|
const aSceneCom = this.getOrCreateSceneComponent(ASceneComponent);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|
||
|
|
|
||
|
|
- 删除场景组件
|
||
|
|
|
||
|
|
```typescript
|
||
|
|
export class MainScene extends es.Scene {
|
||
|
|
onStart() {
|
||
|
|
this.removeSceneComponent(aSceneCom);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
```
|