90 lines
2.4 KiB
JavaScript
90 lines
2.4 KiB
JavaScript
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cc.Class({
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extends: cc.Component,
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properties: {
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m_delayTime: {
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default: 0,
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},
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m_fluxayTime: {
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default: 1,
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},
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m_intervalTime: {
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default: 1,
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},
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m_scale: {
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default: 1,
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},
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m_angle: {
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default: 0,
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},
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m_reviseStartTime: {
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default: 0,
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},
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m_reviseTimeScale: {
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default: 1,
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},
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},
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ctor() {
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this._time = 0;
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},
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onLoad() {
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this._time -= this.m_delayTime;
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let sprite = this.node.getComponent(cc.Sprite);
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this._material = sprite.getMaterial(0);
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this._material.setProperty("u_scale", this.m_scale);
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this._material.setProperty("u_angle", this.m_angle);
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this.refreshSpriteFrameData();
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},
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update(dt) {
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if (this._time > (this.m_fluxayTime + this.m_intervalTime)) {
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this._time = 0;
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}
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let u_time = this._time / this.m_fluxayTime;
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if (this._time > this.m_fluxayTime) {
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u_time = 1 + ((this._time - this.m_fluxayTime) / this.m_intervalTime);
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}
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if (this.m_reviseTimeScale != null && this.m_reviseStartTime != null) {
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u_time = u_time / this.m_reviseTimeScale;
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u_time -= this.m_reviseStartTime;
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}
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this._material.setProperty("u_time", u_time);
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this._time += dt;
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},
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refreshSpriteFrameData() {
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let sprite = this.node.getComponent(cc.Sprite);
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let material = sprite.getMaterial(0);
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let frame = sprite.spriteFrame;
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if (frame != null) {
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// xMin
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let l = frame.uv[0];
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// xMax
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let r = frame.uv[10];
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// yMax
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let b = frame.uv[30];
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// yMin
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let t = frame.uv[50];
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// 纹理在合图中的四个边界 uv 坐标
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let u_uvOffset = new cc.Vec4(l, t, r, b);
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// 纹理是否旋转
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let u_uvRotated = frame.isRotated() ? 1.0 : 0.0;
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// 设置材质的属性
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if (material.getProperty("u_uvOffset") !== undefined) {
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material.setProperty("u_uvOffset", u_uvOffset);
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}
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if (material.getProperty("u_uvRotated") !== undefined) {
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material.setProperty("u_uvRotated", u_uvRotated);
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}
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}
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}
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});
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