![\"\u52a8\u6548\"](\"https:\/\/hungking.cc\/assets\/imgs\/indeex.cc\/tween1.jpg\")
<\/p>\n<\/p>\n
\u9879\u76ee\u9700\u8981\u7528\u5230\u5f88\u591a\u52a8\u6548\uff0c\u4f46\u662f\u5f88\u591a\u5f00\u6e90\u52a8\u753b\u6548\u679c\u6ca1\u6709\u5f88\u597d\u7684\u79fb\u690d\u8fc7\u6765\uff0c\u8fd9\u91cc\u505a\u4e2a\u8bb0\u5f55\uff0c\u4f7f\u7528Typescript\uff0c\u5176\u4ed6ECMAScript\u5b9e\u73b0\u90fd\u4e00\u6837\uff0c\u6e38\u620f\u5f15\u64ceLayabox\u3001Egret\u3001Cocos\u7b49\u4e5f\u90fd\u4e00\u6837\u3002<\/p>\n
\u57fa\u672c\u5305\u542b\u4e86\u5e38\u7528\u7684\u52a8\u753b\u7c7b\u578b\uff1a<\/p>\n
var arr: Array = [\n \"Linear\",\n \"QuadEaseOut\", \"QuadEaseIn\", \"QuadEaseInOut\", \"QuadEaseOutIn\",\n \"ExpoEaseOut\", \"ExpoEaseIn\", \"ExpoEaseInOut\", \"ExpoEaseOutIn\",\n \"CubicEaseOut\", \"CubicEaseIn\", \"CubicEaseInOut\", \"CubicEaseOutIn\",\n \"QuartEaseOut\", \"QuartEaseIn\", \"QuartEaseInOut\", \"QuartEaseOutIn\",\n \"QuintEaseOut\", \"QuintEaseIn\", \"QuintEaseInOut\", \"QuintEaseOutIn\",\n \"CircEaseOut\", \"CircEaseIn\", \"CircEaseInOut\", \"CircEaseOutIn\",\n \"SineEaseOut\", \"SineEaseIn\", \"SineEaseInOut\", \"SineEaseOutIn\",\n \"ElasticEaseOut\", \"ElasticEaseIn\", \"ElasticEaseInOut\", \"ElasticEaseOutIn\",\n \"BounceEaseOut\", \"BounceEaseIn\", \"BounceEaseInOut\", \"BounceEaseOutIn\",\n \"BackEaseOut\", \"BackEaseIn\", \"BackEaseInOut\", \"BackEaseOutIn\"\n];\n<\/code><\/pre>\n\u7136\u540e\u5c31\u662f\u5b9e\u73b0\uff1a<\/p>\n
enum ITweenType\n{\n Linear,\n QuadEaseOut, QuadEaseIn, QuadEaseInOut, QuadEaseOutIn, \n ExpoEaseOut, ExpoEaseIn, ExpoEaseInOut, ExpoEaseOutIn,\n CubicEaseOut, CubicEaseIn, CubicEaseInOut, CubicEaseOutIn,\n QuartEaseOut, QuartEaseIn, QuartEaseInOut, QuartEaseOutIn,\n QuintEaseOut, QuintEaseIn, QuintEaseInOut, QuintEaseOutIn,\n CircEaseOut, CircEaseIn, CircEaseInOut, CircEaseOutIn,\n SineEaseOut, SineEaseIn, SineEaseInOut, SineEaseOutIn,\n ElasticEaseOut, ElasticEaseIn, ElasticEaseInOut, ElasticEaseOutIn,\n BounceEaseOut, BounceEaseIn, BounceEaseInOut, BounceEaseOutIn,\n BackEaseOut, BackEaseIn, BackEaseInOut, BackEaseOutIn\n}\n\nclass ITweener\n{\n public stepBackups = [];\n public step = [];\n public target : any;\n public loop : number;\n public index : number = 0;\n\n public get(target : any, loop : number = 0)\n {\n this.target = target;\n this.loop = loop;\n return this;\n }\n\n public to(params : any, time : number, ease : ITweenType = ITweenType.Linear)\n {\n var obj : any = {};\n obj.type = \"to\";\n obj.startVals = Utils.Copy(params);\n obj.endVals = params;\n obj.endT = time;\n obj.curT = 0;\n obj.ease = ease;\n obj.index = this.index++;\n if(obj.index == 0)\n {\n for(var key in obj.startVals)\n {\n obj.startVals[key] = this.target[key];\n }\n }\n this.step.push(obj);\n if(this.loop != 0 && this.loop != 1)\n this.stepBackups.push(Utils.Copy(obj));\n return this;\n }\n\n public call(func)\n {\n var obj : any = {};\n obj.type = \"call\";\n obj.func = func;\n this.step.push(obj);\n if(this.loop != 0 && this.loop != 1)\n this.stepBackups.push(Utils.Copy(obj));\n return this;\n }\n\n public wait(time : number)\n {\n var obj : any = {};\n obj.type = \"wait\";\n obj.endT = time;\n obj.curT = 0;\n this.step.push(obj);\n if(this.loop != 0 && this.loop != 1)\n this.stepBackups.push(Utils.Copy(obj));\n return this;\n } \n}\n\nclass ITween\n{ \n private static tweenTable : Array<ITweener> = new Array();\n\n public static Init()\n {\n egret.startTick(this.Update,this);\n }\n\n public static Play(wTweener : ITweener)\n {\n this.tweenTable.push(wTweener);\n return wTweener;\n }\n\n public static Stop(wTweener : ITweener) \n {\n var index = -1;\n for(var i = 0; i < this.tweenTable.length; i++)\n {\n if(this.tweenTable[i] == wTweener)\n {\n index = i;\n break;\n }\n }\n if(index != -1)\n this.tweenTable.splice(index, 1);\n }\n\n private static timeOnEnterFrame:number = 0;\n private static Update(timeStamp:number)\n { \n var now = timeStamp;\n var time = this.timeOnEnterFrame;\n var pass = now - time;\n this.timeOnEnterFrame = now;\n\n for(var i = 0; i < this.tweenTable.length; i++)\n {\n switch(this.tweenTable[i].step[0][\"type\"])\n {\n case \"to\": \n if(this.tweenTable[i].step[0][\"curT\"] == 0)\n {\n if(this.tweenTable[i].step[0][\"index\"] != 0)\n {\n for(var key in this.tweenTable[i].step[0][\"startVals\"])\n { \n this.tweenTable[i].step[0][\"startVals\"][key] = this.tweenTable[i].target[key];\n this.tweenTable[i].stepBackups.forEach((value,index,array)=>{\n if(value[\"index\"] != null && value[\"index\"] == this.tweenTable[i].step[0][\"index\"])\n this.tweenTable[i].stepBackups[index][\"startVals\"][key] = this.tweenTable[i].target[key];\n })\n }\n }\n } \n if(this.tweenTable[i].step[0][\"curT\"] + pass < this.tweenTable[i].step[0][\"endT\"])\n {\n this.tweenTable[i].step[0][\"curT\"] += pass;\n this.RunTween(this.tweenTable[i].target, this.tweenTable[i].step[0])\n }\n else\n { \n for(var key in this.tweenTable[i].step[0][\"endVals\"])\n this.tweenTable[i].target[key] = this.tweenTable[i].step[0][\"endVals\"][key];\n this.tweenTable[i].step.shift();\n }\n break;\n case \"call\":\n if(this.tweenTable[i].step[0][\"func\"] != null)\n this.tweenTable[i].step[0][\"func\"].call();\n this.tweenTable[i].step.shift();\n break;\n case \"wait\":\n if(this.tweenTable[i].step[0][\"curT\"] < this.tweenTable[i].step[0][\"endT\"])\n this.tweenTable[i].step[0][\"curT\"] += pass;\n else\n this.tweenTable[i].step.shift();\n break;\n }\n if(this.tweenTable[i].step.length == 0)\n {\n if(this.tweenTable[i].loop > 1 || this.tweenTable[i].loop == -1)\n {\n if(this.tweenTable[i].loop > 1)\n this.tweenTable[i].loop--;\n this.tweenTable[i].step = Utils.Copy(this.tweenTable[i].stepBackups);\n for(var j = 0; j < this.tweenTable[i].stepBackups.length; j++)\n {\n if(this.tweenTable[i].stepBackups[j][\"type\"] == \"to\")\n {\n for(var key in this.tweenTable[i].stepBackups[j][\"startVals\"])\n {\n this.tweenTable[i].target[key] = this.tweenTable[i].stepBackups[j][\"startVals\"][key];\n }\n break;\n }\n }\n }\n else\n this.Stop(this.tweenTable[i]);\n }\n }\n return true;\n }\n\n private static RunTween(target : any, obj : any)\n {\n for(var key in obj[\"endVals\"])\n {\n var currentValue = 0;\n switch(obj[\"ease\"])\n {\n case ITweenType.Linear:\n currentValue = this.Linear(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BackEaseIn:\n currentValue = this.BackEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BackEaseInOut:\n currentValue = this.BackEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BackEaseOut:\n currentValue = this.BackEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BackEaseOutIn:\n currentValue = this.BackEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BounceEaseIn:\n currentValue = this.BounceEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BounceEaseInOut:\n currentValue = this.BounceEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BounceEaseOut:\n currentValue = this.BounceEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.BounceEaseOutIn:\n currentValue = this.BounceEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CircEaseIn:\n currentValue = this.CircEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CircEaseInOut:\n currentValue = this.CircEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CircEaseOut:\n currentValue = this.CircEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CircEaseOutIn:\n currentValue = this.CircEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CubicEaseIn:\n currentValue = this.CubicEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CubicEaseInOut:\n currentValue = this.CubicEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CubicEaseOut:\n currentValue = this.CubicEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.CubicEaseOutIn:\n currentValue = this.CubicEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ElasticEaseIn:\n currentValue = this.ElasticEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ElasticEaseInOut:\n currentValue = this.ElasticEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ElasticEaseOut:\n currentValue = this.ElasticEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ElasticEaseOutIn:\n currentValue = this.ElasticEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ExpoEaseIn:\n currentValue = this.ExpoEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ExpoEaseInOut:\n currentValue = this.ExpoEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ExpoEaseOut:\n currentValue = this.ExpoEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.ExpoEaseOutIn:\n currentValue = this.ExpoEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuadEaseIn:\n currentValue = this.QuadEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuadEaseInOut:\n currentValue = this.QuadEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuadEaseOut:\n currentValue = this.QuadEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuadEaseOutIn:\n currentValue = this.QuadEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuartEaseIn:\n currentValue = this.QuartEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuartEaseInOut:\n currentValue = this.QuartEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuartEaseOut:\n currentValue = this.QuartEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuartEaseOutIn:\n currentValue = this.QuartEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuintEaseIn:\n currentValue = this.QuintEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuintEaseInOut:\n currentValue = this.QuintEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuintEaseOut:\n currentValue = this.QuintEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.QuintEaseOutIn:\n currentValue = this.QuintEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.SineEaseIn:\n currentValue = this.SineEaseIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.SineEaseInOut:\n currentValue = this.SineEaseInOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.SineEaseOut:\n currentValue = this.SineEaseOut(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n case ITweenType.SineEaseOutIn:\n currentValue = this.SineEaseOutIn(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n default:\n currentValue = this.Linear(obj[\"curT\"], 0, obj[\"endVals\"][key] - obj[\"startVals\"][key], obj[\"endT\"]);\n break;\n }\n target[key] = currentValue + obj[\"startVals\"][key];\n }\n }\n\n public static Linear(t : number, b : number, c : number, d : number)\n {\n return c * t \/ d + b;\n }\n\n public static ExpoEaseOut(t : number, b : number, c : number, d : number)\n {\n return (t == d) ? b + c : c * (-Math.pow(2, -10 * t \/ d) + 1) + b;\n }\n\n public static ExpoEaseIn(t : number, b : number, c : number, d : number)\n {\n return (t == 0) ? b : c * Math.pow(2, 10 * (t \/ d - 1)) + b;\n }\n\n public static ExpoEaseInOut(t : number, b : number, c : number, d : number)\n {\n if (t == 0)\n return b;\n\n if (t == d)\n return b + c;\n\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * Math.pow(2, 10 * (t - 1)) + b;\n\n return c \/ 2 * (-Math.pow(2, -10 * --t) + 2) + b;\n }\n\n public static ExpoEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.ExpoEaseOut(t * 2, b, c \/ 2, d);\n\n return this.ExpoEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n\n public static CircEaseOut(t : number, b : number, c : number, d : number)\n {\n return c * Math.sqrt(1 - (t = t \/ d - 1) * t) + b;\n }\n\n public static CircEaseIn(t : number, b : number, c : number, d : number)\n {\n return -c * (Math.sqrt(1 - (t \/= d) * t) - 1) + b;\n }\n\n public static CircEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) < 1)\n return -c \/ 2 * (Math.sqrt(1 - t * t) - 1) + b;\n\n return c \/ 2 * (Math.sqrt(1 - (t -= 2) * t) + 1) + b;\n }\n\n public static CircEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.CircEaseOut(t * 2, b, c \/ 2, d);\n\n return this.CircEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n\n public static QuadEaseOut(t : number, b : number, c : number, d : number)\n {\n return -c * (t \/= d) * (t - 2) + b;\n }\n\n public static QuadEaseIn(t : number, b : number, c : number, d : number)\n {\n return c * (t \/= d) * t + b;\n }\n\n public static QuadEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * t * t + b;\n\n return -c \/ 2 * ((--t) * (t - 2) - 1) + b;\n }\n\n public static QuadEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.QuadEaseOut(t * 2, b, c \/ 2, d);\n\n return this.QuadEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n\n public static SineEaseOut(t : number, b : number, c : number, d : number)\n {\n return c * Math.sin(t \/ d * (Math.PI \/ 2)) + b;\n }\n\n public static SineEaseIn(t : number, b : number, c : number, d : number)\n {\n return -c * Math.cos(t \/ d * (Math.PI \/ 2)) + c + b;\n }\n\n public static SineEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * (Math.sin(Math.PI * t \/ 2)) + b;\n\n return -c \/ 2 * (Math.cos(Math.PI * --t \/ 2) - 2) + b;\n }\n\n public static SineEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.SineEaseOut(t * 2, b, c \/ 2, d);\n\n return this.SineEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n\n public static CubicEaseOut(t : number, b : number, c : number, d : number)\n {\n return c * ((t = t \/ d - 1) * t * t + 1) + b;\n }\n\n public static CubicEaseIn(t : number, b : number, c : number, d : number)\n {\n return c * (t \/= d) * t * t + b;\n }\n\n public static CubicEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * t * t * t + b;\n\n return c \/ 2 * ((t -= 2) * t * t + 2) + b;\n }\n\n public static CubicEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.CubicEaseOut(t * 2, b, c \/ 2, d);\n\n return this.CubicEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n\n public static QuartEaseOut(t : number, b : number, c : number, d : number)\n {\n return -c * ((t = t \/ d - 1) * t * t * t - 1) + b;\n }\n\n public static QuartEaseIn(t : number, b : number, c : number, d : number)\n {\n return c * (t \/= d) * t * t * t + b;\n }\n\n public static QuartEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * t * t * t * t + b;\n\n return -c \/ 2 * ((t -= 2) * t * t * t - 2) + b;\n }\n\n public static QuartEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.QuartEaseOut(t * 2, b, c \/ 2, d);\n\n return this.QuartEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n } \n\n public static QuintEaseOut(t : number, b : number, c : number, d : number)\n {\n return c * ((t = t \/ d - 1) * t * t * t * t + 1) + b;\n }\n\n public static QuintEaseIn(t : number, b : number, c : number, d : number)\n {\n return c * (t \/= d) * t * t * t * t + b;\n }\n\n public static QuintEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * t * t * t * t * t + b;\n return c \/ 2 * ((t -= 2) * t * t * t * t + 2) + b;\n }\n\n public static QuintEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.QuintEaseOut(t * 2, b, c \/ 2, d);\n return this.QuintEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n } \n\n public static ElasticEaseOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d) == 1)\n return b + c;\n\n var p = d * 0.3;\n var s = p \/ 4;\n\n return (c * Math.pow(2, -10 * t) * Math.sin((t * d - s) * (2 * Math.PI) \/ p) + c + b);\n }\n\n public static ElasticEaseIn(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d) == 1)\n return b + c;\n\n var p = d * 0.3;\n var s = p \/ 4;\n\n return -(c * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) \/ p)) + b;\n }\n\n public static ElasticEaseInOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d \/ 2) == 2)\n return b + c;\n\n var p = d * (0.3 * 1.5);\n var s = p \/ 4;\n\n if (t < 1)\n return -0.5 * (c * Math.pow(2, 10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) \/ p)) + b;\n return c * Math.pow(2, -10 * (t -= 1)) * Math.sin((t * d - s) * (2 * Math.PI) \/ p) * 0.5 + c + b;\n }\n\n public static ElasticEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.ElasticEaseOut(t * 2, b, c \/ 2, d);\n return this.ElasticEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n } \n\n public static BounceEaseOut(t : number, b : number, c : number, d : number)\n {\n if ((t \/= d) < (1 \/ 2.75))\n return c * (7.5625 * t * t) + b;\n else if (t < (2 \/ 2.75))\n return c * (7.5625 * (t -= (1.5 \/ 2.75)) * t + 0.75) + b;\n else if (t < (2.5 \/ 2.75))\n return c * (7.5625 * (t -= (2.25 \/ 2.75)) * t + 0.9375) + b;\n else\n return c * (7.5625 * (t -= (2.625 \/ 2.75)) * t + .984375) + b;\n }\n\n public static BounceEaseIn(t : number, b : number, c : number, d : number)\n {\n return c - this.BounceEaseOut(d - t, 0, c, d) + b;\n }\n\n public static BounceEaseInOut(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.BounceEaseIn(t * 2, 0, c, d) * 0.5 + b;\n else\n return this.BounceEaseOut(t * 2 - d, 0, c, d) * 0.5 + c * 0.5 + b;\n }\n\n public static BounceEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.BounceEaseOut(t * 2, b, c \/ 2, d);\n return this.BounceEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n\n public static BackEaseOut(t : number, b : number, c : number, d : number)\n {\n return c * ((t = t \/ d - 1) * t * ((1.70158 + 1) * t + 1.70158) + 1) + b;\n }\n\n public static BackEaseIn(t : number, b : number, c : number, d : number)\n {\n return c * (t \/= d) * t * ((1.70158 + 1) * t - 1.70158) + b;\n }\n\n public static BackEaseInOut(t : number, b : number, c : number, d : number)\n {\n var s = 1.70158;\n if ((t \/= d \/ 2) < 1)\n return c \/ 2 * (t * t * (((s *= (1.525)) + 1) * t - s)) + b;\n return c \/ 2 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2) + b;\n }\n\n public static BackEaseOutIn(t : number, b : number, c : number, d : number)\n {\n if (t < d \/ 2)\n return this.BackEaseOut(t * 2, b, c \/ 2, d);\n return this.BackEaseIn((t * 2) - d, b + c \/ 2, c \/ 2, d);\n }\n}\n<\/code><\/pre>\n\u7136\u540e\u662futils\uff1a<\/p>\n
class Utils{\n public static Copy (o) {\n if (o instanceof Array) \n {\n var a = [];\n for (var i = 0; i < o.length; ++i) {\n a[i] = Utils.Copy(o[i]);\n }\n return a;\n\n } \n else if (o instanceof Function) \n {\n var b = o;\n return b;\n } \n else if (o instanceof Object) \n {\n var c = {}\n for (var j in o) {\n c[j] = Utils.Copy(o[j]);\n }\n return c;\n }\n else \n {\n return o;\n }\n }\n}\n<\/code><\/pre>\n\u6d4b\u8bd5\uff0c\u4ee5Egret\u5f15\u64ce\u4e3a\u4f8b\uff1a<\/p>\n
class Main extends eui.UILayer {\n protected createChildren(): void {\n super.createChildren();\n WTween.Init();\n }\n\n \/\/...\n\n protected gameScene(): void {\n for(var i = 0; i < 3; i++)\n {\n let icon: egret.Bitmap = this.createBitmapByName(\"test_png\");\n this.addChild(icon);\n icon.x = 0 + i * 120;\n icon.y = 0;\n ITween.Play(new WTweener()\n .get(icon, -1)\n .to({y:400, alpha:0.5}, 3000, ITweenType.Linear)\n .call(()=>{\n })\n .wait(1500)\n .call(()=>{\n }));\n }\n }\n}\n<\/code><\/pre>\n\u5c31\u8fd9\u6837\u5427\u3002<\/p>\n
code enjoy!\ud83e\udd29\ud83e\udd29\ud83e\udd29<\/p>\n
\u4f5c\u8005\uff1aindeex<\/p>\n
\u94fe\u63a5\uff1ahttps:\/\/indeex.cc<\/a><\/p>\n\u8457\u4f5c\u6743\u5f52\u4f5c\u8005\u6240\u6709\u3002\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u8054\u7cfb\u4f5c\u8005\u83b7\u5f97\u6388\u6743\uff0c\u975e\u5546\u4e1a\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\u3002<\/p>\n
\n","protected":false},"excerpt":{"rendered":"\u9879\u76ee\u9700\u8981\u7528\u5230\u5f88\u591a\u52a8\u6548\uff0c\u4f46\u662f\u5f88\u591a\u5f00\u6e90\u52a8\u753b\u6548\u679c\u6ca1\u6709\u5f88\u597d\u7684\u79fb\u690d\u8fc7\u6765\uff0c\u8fd9\u91cc\u505a\u4e2a\u8bb0\u5f55\uff0c\u4f7f\u7528TypescriptRead More<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[4],"_links":{"self":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/185"}],"collection":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/comments?post=185"}],"version-history":[{"count":1,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/185\/revisions"}],"predecessor-version":[{"id":190,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/posts\/185\/revisions\/190"}],"wp:attachment":[{"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/media?parent=185"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/categories?post=185"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.indeex.club\/index.php\/wp-json\/wp\/v2\/tags?post=185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}