252 lines
7.7 KiB
TypeScript
252 lines
7.7 KiB
TypeScript
///<reference path="../Math/Vector2.ts" />
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module es {
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export enum SceneResolutionPolicy {
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/**
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* 默认情况下，RenderTarget与屏幕大小匹配。RenderTarget与屏幕大小相匹配
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*/
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none,
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/**
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* 该应用程序采用最适合设计分辨率的宽度和高度
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*/
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bestFit
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}
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/** 场景 */
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export class Scene {
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/**
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* 这个场景中的实体列表
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*/
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public readonly entities: EntityList;
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/**
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* 管理所有实体处理器
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*/
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public readonly entityProcessors: EntityProcessorList;
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public readonly _sceneComponents: SceneComponent[] = [];
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private _didSceneBegin: boolean;
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constructor() {
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this.entities = new EntityList(this);
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this.entityProcessors = new EntityProcessorList();
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this.initialize();
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}
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/**
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* 在场景子类中重写这个，然后在这里进行加载。
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* 在场景设置好之后，但在调用begin之前，从contructor中调用这个函数
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*/
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public initialize() {
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}
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/**
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* 当Core将这个场景设置为活动场景时，这个将被调用
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*/
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public onStart() {
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}
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/**
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* 在场景子类中重写这个，并在这里做任何必要的卸载。
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* 当Core把这个场景从活动槽中移除时，这个被调用。
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*/
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public unload() {
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}
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public begin() {
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Physics.reset();
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if (this.entityProcessors != null)
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this.entityProcessors.begin();
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this._didSceneBegin = true;
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this.onStart();
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}
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public end() {
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this._didSceneBegin = false;
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this.entities.removeAllEntities();
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for (let i = 0; i < this._sceneComponents.length; i++) {
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this._sceneComponents[i].onRemovedFromScene();
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}
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this._sceneComponents.length = 0;
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Physics.clear();
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if (this.entityProcessors)
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this.entityProcessors.end();
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this.unload();
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}
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public update() {
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// 更新我们的列表，以防它们有任何变化
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this.entities.updateLists();
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for (let i = this._sceneComponents.length - 1; i >= 0; i--) {
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if (this._sceneComponents[i].enabled)
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this._sceneComponents[i].update();
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}
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// 更新我们的实体解析器
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if (this.entityProcessors != null)
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this.entityProcessors.update();
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// 更新我们的实体组
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this.entities.update();
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if (this.entityProcessors != null)
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this.entityProcessors.lateUpdate();
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}
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/**
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* 向组件列表添加并返回SceneComponent
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* @param component
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*/
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public addSceneComponent<T extends SceneComponent>(component: T): T {
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component.scene = this;
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component.onEnabled();
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this._sceneComponents.push(component);
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this._sceneComponents.sort(component.compare);
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return component;
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}
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/**
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* 获取类型为T的第一个SceneComponent并返回它。如果没有找到组件，则返回null。
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* @param type
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*/
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public getSceneComponent<T extends SceneComponent>(type) {
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for (let i = 0; i < this._sceneComponents.length; i++) {
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let component = this._sceneComponents[i];
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if (component instanceof type)
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return component as T;
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}
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return null;
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}
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/**
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* 获取类型为T的第一个SceneComponent并返回它。如果没有找到SceneComponent，则将创建SceneComponent。
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* @param type
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*/
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public getOrCreateSceneComponent<T extends SceneComponent>(type) {
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let comp = this.getSceneComponent<T>(type);
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if (comp == null)
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comp = this.addSceneComponent<T>(new type());
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return comp;
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}
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/**
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* 从SceneComponents列表中删除一个SceneComponent
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* @param component
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*/
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public removeSceneComponent(component: SceneComponent) {
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const sceneComponentList = new linq.List(this._sceneComponents);
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Insist.isTrue(sceneComponentList.contains(component), `SceneComponent${component}不在SceneComponents列表中!`);
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sceneComponentList.remove(component);
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component.onRemovedFromScene();
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}
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/**
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* 将实体添加到此场景，并返回它
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* @param name
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*/
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public createEntity(name: string) {
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let entity = new Entity(name);
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return this.addEntity(entity);
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}
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/**
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* 在场景的实体列表中添加一个实体
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* @param entity
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*/
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public addEntity(entity: Entity) {
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Insist.isFalse(new linq.List(this.entities.buffer).contains(entity), `您试图将同一实体添加到场景两次: ${entity}`);
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this.entities.add(entity);
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entity.scene = this;
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for (let i = 0; i < entity.transform.childCount; i++)
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this.addEntity(entity.transform.getChild(i).entity);
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return entity;
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}
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/**
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* 从场景中删除所有实体
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*/
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public destroyAllEntities() {
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for (let i = 0; i < this.entities.count; i++) {
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this.entities.buffer[i].destroy();
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}
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}
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/**
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* 搜索并返回第一个具有名称的实体
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* @param name
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*/
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public findEntity(name: string): Entity {
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return this.entities.findEntity(name);
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}
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/**
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* 返回具有给定标记的所有实体
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* @param tag
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*/
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public findEntitiesWithTag(tag: number): Entity[] {
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return this.entities.entitiesWithTag(tag);
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}
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/**
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* 返回类型为T的所有实体
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* @param type
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*/
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public entitiesOfType<T extends Entity>(type): T[] {
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return this.entities.entitiesOfType<T>(type);
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}
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/**
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* 返回第一个启用加载的类型为T的组件
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* @param type
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*/
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public findComponentOfType<T extends Component>(type): T {
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return this.entities.findComponentOfType<T>(type);
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}
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/**
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* 返回类型为T的所有已启用已加载组件的列表
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* @param type
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*/
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public findComponentsOfType<T extends Component>(type): T[] {
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return this.entities.findComponentsOfType<T>(type);
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}
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/**
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* 在场景中添加一个EntitySystem处理器
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* @param processor 处理器
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*/
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public addEntityProcessor(processor: EntitySystem) {
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processor.scene = this;
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this.entityProcessors.add(processor);
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return processor;
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}
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/**
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* 从场景中删除EntitySystem处理器
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* @param processor
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*/
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public removeEntityProcessor(processor: EntitySystem) {
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this.entityProcessors.remove(processor);
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}
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/**
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* 获取EntitySystem处理器
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*/
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public getEntityProcessor<T extends EntitySystem>(): T {
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return this.entityProcessors.getProcessor<T>();
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}
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}
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} |