[add] First

assets/Resources/script/ShaderController.ts

@@ -0,0 +1,61 @@
+const {ccclass,property} = cc._decorator;
+
+@ccclass
+export default class ShaderTime extends cc.Component
+{
+    /**记录时间 */
+    private time: number;
+    private sprite: cc.Sprite;
+    /**精灵上的材质 */
+    private material: any;
+    /**增加还是减少 */
+    private IsAdd: boolean;
+
+    /**速度 */
+    @property({type: cc.Float,tooltip: "速度"})
+    speed = 1.0;
+
+    /**是否循环 */
+    @property({tooltip: "是否循环"})
+    isLoop: boolean = false;
+
+    /**是否设置UV到effect(解决动态合图的bug) */
+    @property({tooltip: "是否设置UV到effect(解决动态合图的bug)"})
+    isSetUv: boolean = false;
+
+    start()
+    {
+        this.time = 0;
+        this.IsAdd = true;
+        this.sprite = this.node.getComponent(cc.Sprite);
+        this.material = this.sprite.getMaterial(0);   //获取材质 
+    }
+
+    update(dt)
+    {
+        this.material.setProperty("u_time",this.time);          //设置材质对应的属性
+        (this.isLoop && !this.IsAdd) ? this.time -= dt * this.speed : this.time += dt * this.speed;
+        if(this.isSetUv)
+        {   //传递UV 参数到 effect
+            let frame = this.sprite.spriteFrame as any;
+            let l = 0,r = 0,b = 1,t = 1;
+            l = frame.uv[0];
+            t = frame.uv[5];
+            r = frame.uv[6];
+            b = frame.uv[3];
+            let u_UVoffset = new cc.Vec4(l,t,r,b);
+            let u_rotated = frame.isRotated() ? 1.0 : 0.0;
+            this.material.setProperty("u_UVoffset",u_UVoffset);
+            this.material.setProperty("u_rotated",u_rotated);
+        }
+        cc.log(this.time);
+        if(this.time > 1.5)
+        {
+            this.IsAdd = false;
+        }
+        else if(this.time < -0.5)
+        {
+            this.IsAdd = true;
+        }
+    }
+}

assets/Resources/script/ShaderController.ts.meta

@@ -0,0 +1,9 @@
+{
+  "ver": "1.0.8",
+  "uuid": "ee8e4708-0626-4367-84ad-a44d4465fbb3",
+  "isPlugin": false,
+  "loadPluginInWeb": true,
+  "loadPluginInNative": true,
+  "loadPluginInEditor": false,
+  "subMetas": {}
+}