104 lines
3.3 KiB
TypeScript
104 lines
3.3 KiB
TypeScript
/** 运行时的场景管理。 */
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class SceneManager {
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private static _scene: Scene;
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private static _nextScene: Scene;
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public static sceneTransition: SceneTransition;
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public static stage: egret.Stage;
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constructor(stage: egret.Stage) {
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stage.addEventListener(egret.Event.ENTER_FRAME, SceneManager.update, this);
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SceneManager.stage = stage;
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SceneManager.initialize(stage);
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}
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public static get scene() {
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return this._scene;
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}
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public static set scene(value: Scene) {
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if (!value)
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throw new Error("场景不能为空");
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if (this._scene == null) {
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this._scene = value;
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this._scene.begin();
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} else {
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this._nextScene = value;
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}
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}
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public static initialize(stage: egret.Stage) {
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Input.initialize(stage);
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}
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public static update() {
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Time.update(egret.getTimer());
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if (SceneManager._scene) {
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for (let i = GlobalManager.globalManagers.length - 1; i >= 0; i--) {
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if (GlobalManager.globalManagers[i].enabled)
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GlobalManager.globalManagers[i].update();
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}
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if (!SceneManager.sceneTransition ||
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(SceneManager.sceneTransition && (!SceneManager.sceneTransition.loadsNewScene || SceneManager.sceneTransition.isNewSceneLoaded))) {
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SceneManager._scene.update();
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}
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if (SceneManager._nextScene) {
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SceneManager._scene.end();
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for (let i = 0; i < SceneManager._scene.entities.buffer.length; i++) {
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let entity = SceneManager._scene.entities.buffer[i];
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entity.destroy();
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}
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SceneManager._scene = SceneManager._nextScene;
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SceneManager._nextScene = null;
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SceneManager._scene.begin();
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}
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}
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SceneManager.render();
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}
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public static render() {
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if (this.sceneTransition){
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this.sceneTransition.preRender();
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if (this._scene && !this.sceneTransition.hasPreviousSceneRender){
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this._scene.render();
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this._scene.postRender();
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this.sceneTransition.onBeginTransition();
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} else if (this.sceneTransition) {
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if (this._scene && this.sceneTransition.isNewSceneLoaded) {
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this._scene.render();
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this._scene.postRender();
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}
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this.sceneTransition.render();
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}
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} else if (this._scene) {
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this._scene.render();
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Debug.render();
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this._scene.postRender();
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}
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}
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/**
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* 临时运行SceneTransition，允许一个场景过渡到另一个平滑的自定义效果。
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* @param sceneTransition
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*/
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public static startSceneTransition<T extends SceneTransition>(sceneTransition: T): T {
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if (this.sceneTransition) {
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console.warn("在前一个场景完成之前，不能开始一个新的场景转换。");
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return;
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}
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this.sceneTransition = sceneTransition;
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return sceneTransition;
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}
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} |