60 lines
1.8 KiB
TypeScript
60 lines
1.8 KiB
TypeScript
const { ccclass, property } = cc._decorator;
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@ccclass
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export default class OldPhotoEffectScene extends cc.Component {
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private _oldLevelSlider: cc.Slider = null;
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private _oldLevelSliderLabel: cc.Label = null;
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private _examplesParentNode: cc.Node = null;
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onLoad() {
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this._oldLevelSlider = cc.find("Canvas/Content/Sliders/OldLevelSlider/Slider").getComponent(cc.Slider);
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this._oldLevelSliderLabel = cc.find("Canvas/Content/Sliders/OldLevelSlider/ValueLabel").getComponent(cc.Label);
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this._examplesParentNode = cc.find("Canvas/Content/Examples");
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}
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onEnable() {
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this._oldLevelSlider.node.on("slide", this._onSliderChanged, this);
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}
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onDisable() {
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this._oldLevelSlider.node.off("slide", this._onSliderChanged, this);
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}
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start() {
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this._onSliderChanged();
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}
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private _onSliderChanged() {
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this._oldLevelSliderLabel.string = `${this._oldLevelSlider.progress.toFixed(2)}`;
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// 更新材质
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this._updateRenderComponentMaterial({
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oldLevel: this._oldLevelSlider.progress
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});
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}
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/**
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* 更新渲染组件的材质
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*
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* 1. 获取材质
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* 2. 给材质的 unitform 变量赋值
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* 3. 重新将材质赋值回去
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*/
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private _updateRenderComponentMaterial(param: {
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/**
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* 老化程度 [0.0, 1.0] ，1.0 表示完全老化
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*/
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oldLevel: number;
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}) {
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this._examplesParentNode.children.forEach(childNode => {
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childNode.getComponents(cc.RenderComponent).forEach(renderComponent => {
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let material: cc.Material = renderComponent.getMaterial(0);
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material.setProperty("oldLevel", param.oldLevel);
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renderComponent.setMaterial(0, material);
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});
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});
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}
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}
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