84 lines
2.8 KiB
TypeScript
84 lines
2.8 KiB
TypeScript
const { ccclass, property } = cc._decorator;
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@ccclass
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export default class FlashLightCtrlComponent extends cc.Component {
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private _flashLightUBO: FlashLightUBO = new FlashLightUBO();
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onEnable() {
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this.node.on(cc.Node.EventType.TOUCH_START, this._onTouchStart, this);
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this.node.on(cc.Node.EventType.TOUCH_MOVE, this._onTouchMove, this);
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this.node.on("on_property_change", this._onPropertyChange, this);
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}
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onDisable() {
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this.node.off(cc.Node.EventType.TOUCH_START, this._onTouchStart, this);
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this.node.off(cc.Node.EventType.TOUCH_MOVE, this._onTouchMove, this);
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this.node.off("on_property_change", this._onPropertyChange, this);
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}
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private _onTouchStart(event: cc.Event.EventTouch) {
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this._onTouchMove(event);
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}
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private _onTouchMove(event: cc.Event.EventTouch) {
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let touchPointInWorldSpace = event.getLocation();
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let touchPointInNodeSpace = this.node.convertToNodeSpaceAR(touchPointInWorldSpace);
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// 将触摸点转换为OPENGL坐标系并归一化
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// OpenGl 坐标系原点在左上角
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this._flashLightUBO.certerPoint = cc.v2(
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this.node.anchorX + touchPointInNodeSpace.x / this.node.width,
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1 - (this.node.anchorY + touchPointInNodeSpace.y / this.node.height)
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);
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this._updateMaterial();
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}
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private _onPropertyChange(localDiffusionUniform: FlashLightUBO) {
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this._flashLightUBO.centerColor = localDiffusionUniform.centerColor;
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this._flashLightUBO.radius = localDiffusionUniform.radius;
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this._flashLightUBO.cropAlpha = localDiffusionUniform.cropAlpha;
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this._flashLightUBO.enableFog = localDiffusionUniform.enableFog;
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this._updateMaterial();
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}
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private _updateMaterial() {
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this.getComponents(cc.RenderComponent).forEach(renderComponent => {
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let material: cc.Material = renderComponent.getMaterial(0);
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material.setProperty("centerColor", this._flashLightUBO.centerColor);
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material.setProperty("centerPoint", this._flashLightUBO.certerPoint);
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material.setProperty("radius", this._flashLightUBO.radius);
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material.setProperty("cropAlpha", this._flashLightUBO.cropAlpha);
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material.setProperty("enableFog", this._flashLightUBO.enableFog);
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renderComponent.setMaterial(0, material);
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});
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}
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}
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export class FlashLightUBO {
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/**
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* 中心点颜色
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*/
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centerColor: cc.Color = cc.Color.YELLOW;
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/**
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* 中心点坐标 ([0.0, 1.0], [0.0, 1.0])
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*/
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certerPoint: cc.Vec2 = cc.v2(0.5, 0.5);
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/**
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* 扩散半径 [0.0, 1.0]
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*/
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radius: number = 0.5;
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/**
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* 是否裁剪掉透明区域上的点光
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*/
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cropAlpha: boolean = true;
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/**
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* 是否开启战争迷雾效果
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*/
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enableFog: boolean = false;
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}
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