108 lines
4.2 KiB
TypeScript
108 lines
4.2 KiB
TypeScript
///<reference path="../../Graphics/Renderers/IRenderable.ts" />
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module es {
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export class RenderableComponentList {
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/**
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* IRenderable列表的全局updatePrder排序
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*/
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public static compareUpdatableOrder = new RenderableComparer();
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/**
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* 添加到实体的组件列表
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*/
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public _components: IRenderable[] = [];
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/**
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* 通过渲染层跟踪组件，便于检索
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*/
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public _componentsByRenderLayer: Map<number, IRenderable[]> = new Map<number, IRenderable[]>();
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public _unsortedRenderLayers: number[] = [];
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private _componentsNeedSort: boolean = true;
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public get componentsNeedSort(): boolean {
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return this._componentsNeedSort;
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}
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public set componentsNeedSort(value: boolean) {
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this._componentsNeedSort = value;
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}
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public get count() {
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return this._components.length;
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}
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public get buffer() {
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return this._components;
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}
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public add(component: IRenderable) {
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this._components.push(component);
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this.addToRenderLayerList(component, component.renderLayer);
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}
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public remove(component: IRenderable) {
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this._components.remove(component);
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this._componentsByRenderLayer.get(component.renderLayer).remove(component);
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}
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public updateRenderableRenderLayer(component: IRenderable, oldRenderLayer: number, newRenderLayer: number) {
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// 需要注意的是，如果渲染层在组件update之前发生了改变
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if (this._componentsByRenderLayer.has(oldRenderLayer) && this._componentsByRenderLayer.get(oldRenderLayer).contains(component)) {
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this._componentsByRenderLayer.get(oldRenderLayer).remove(component);
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this.addToRenderLayerList(component, newRenderLayer);
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}
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}
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/**
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* 将渲染层排序标志弄脏，让所有组件重新排序
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* @param renderLayer
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*/
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public setRenderLayerNeedsComponentSort(renderLayer: number) {
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if (!this._unsortedRenderLayers.contains(renderLayer))
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this._unsortedRenderLayers.push(renderLayer);
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this.componentsNeedSort = true;
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}
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public setNeedsComponentSort() {
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this.componentsNeedSort = true;
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}
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public addToRenderLayerList(component: IRenderable, renderLayer: number) {
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let list = this.componentsWithRenderLayer(renderLayer);
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if (list.contains(component)) {
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console.warn("组件呈现层列表已经包含此组件");
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return;
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}
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list.push(component);
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if (!this._unsortedRenderLayers.contains(renderLayer))
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this._unsortedRenderLayers.push(renderLayer);
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this.componentsNeedSort = true;
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}
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/**
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* 使用给定的渲染层获取所有组件。组件列表是预先排序的
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* @param renderLayer
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*/
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public componentsWithRenderLayer(renderLayer: number): IRenderable[] {
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if (!this._componentsByRenderLayer.get(renderLayer)) {
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this._componentsByRenderLayer.set(renderLayer, []);
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}
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return this._componentsByRenderLayer.get(renderLayer);
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}
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public updateList() {
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if (this.componentsNeedSort) {
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this._components.sort(RenderableComponentList.compareUpdatableOrder.compare);
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this.componentsNeedSort = false;
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}
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if (this._unsortedRenderLayers.length > 0) {
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for (let i = 0, count = this._unsortedRenderLayers.length; i < count; i++) {
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let renderLayerComponents = this._componentsByRenderLayer.get(this._unsortedRenderLayers[i]);
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if (renderLayerComponents) {
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renderLayerComponents.sort(RenderableComponentList.compareUpdatableOrder.compare);
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}
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}
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this._unsortedRenderLayers.length = 0;
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}
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}
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}
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}
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