From 525469dcf59d4bd7e984acb259ad026105fe414f Mon Sep 17 00:00:00 2001
From: "kevin.yang" <kevin.yang@all-dream.com>
Date: Fri, 2 Aug 2019 16:14:46 +0800
Subject: [PATCH 1/3] =?UTF-8?q?=E4=BB=A3=E7=A0=81=E9=87=8D=E6=9E=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 bower.json                     |   28 +
 build.js                       |   68 +
 demos/imgarr/index2.html       |   17 +-
 demos/sprite/index-sprite.html |   16 +-
 lib/canvas-keyframes.es.js     |  327 +++
 lib/canvas-keyframes.js        |  329 +++
 lib/canvas-keyframes.min.js    |    7 +
 package-lock.json              | 3916 +-------------------------------
 package.json                   |   49 +-
 src/index.js                   |  314 +++
 10 files changed, 1234 insertions(+), 3837 deletions(-)
 create mode 100644 bower.json
 create mode 100644 build.js
 create mode 100644 lib/canvas-keyframes.es.js
 create mode 100644 lib/canvas-keyframes.js
 create mode 100644 lib/canvas-keyframes.min.js
 create mode 100644 src/index.js

diff --git a/bower.json b/bower.json
new file mode 100644
index 0000000..cdf80ee
--- /dev/null
+++ b/bower.json
@@ -0,0 +1,28 @@
+{
+    "name": "canvas-keyframes",
+    "description": "JavaScript canvas animation",
+    "main": "canvas-keyframes.js",
+    "repository": {
+      "type": "git",
+      "url": "https://github.com/wenyiweb/canvasKeyFrames.git"
+    },
+    "keywords": [
+      "canvas-keyframes",
+      "animation",
+      "javascript",
+      "keyframes",
+      "canvas"
+    ],
+    "authors": [
+      "wenyi <yangwenyi0@126.com>"
+    ],
+    "license": "MIT",
+    "ignore": [
+      "**/.*",
+      "node_modules",
+      "bower_components",
+      "test",
+      "tests"
+    ]
+  }
+  
\ No newline at end of file
diff --git a/build.js b/build.js
new file mode 100644
index 0000000..5ccabae
--- /dev/null
+++ b/build.js
@@ -0,0 +1,68 @@
+const fs = require('fs');
+const { rollup } = require('rollup');
+const { minify } = require('uglify-js');
+const pretty = require('pretty-bytes');
+const sizer = require('gzip-size');
+const pkg = require('./package');
+
+const umd = pkg['umd:main'];
+const date = new Date();
+
+const banner = `/*
+ * anime.js v${ pkg.version }
+ * (c) ${ date.getFullYear() } wenyi
+ * Released under the MIT license
+ */
+`;
+
+console.info('Compiling... 😤');
+
+rollup({
+  input: 'src/index.js',
+  plugins: [
+    require('rollup-plugin-buble')({
+      transforms: {
+        modules: false,
+        dangerousForOf: true
+      },
+      targets: {
+        firefox: 32,
+        chrome: 24,
+        safari: 6,
+        opera: 15,
+        edge: 10,
+        ie: 10
+      }
+    })
+  ]
+}).then(bun => {
+  bun.write({
+    banner,
+    format: 'cjs',
+    file: pkg.main
+  });
+
+  bun.write({
+    banner,
+    format: 'es',
+    file: pkg.module
+  });
+
+  bun.write({
+    banner,
+    file: umd,
+    format: 'umd',
+    name: pkg['umd:name']
+  }).then(_ => {
+    const data = fs.readFileSync(umd, 'utf8');
+
+    // produce minified output
+    const { code } = minify(data);
+    fs.writeFileSync(umd, `${banner}\n${code}`); // with banner
+
+    // output gzip size
+    const int = sizer.sync(code);
+    console.info('Compilation was a success! 👍');
+    console.info(`~> gzip size: ${ pretty(int) }`);
+  }).catch(console.error);
+}).catch(console.error);
diff --git a/demos/imgarr/index2.html b/demos/imgarr/index2.html
index f4dcb12..f9e770d 100644
--- a/demos/imgarr/index2.html
+++ b/demos/imgarr/index2.html
@@ -15,7 +15,7 @@
 	</div>
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/vConsole/3.2.0/vconsole.min.js"></script>
 	<!-- <script src="../../dist/canvas-keyframes.min.js"></script> -->
-	<script src="../../src/canvas-keyframes.js"></script>
+	<script src="../../lib/canvas-keyframes.min.js"></script>
 	<script>
 		// 初始化vConsole
 		window.vConsole = new window.VConsole();
@@ -44,11 +44,16 @@
 		}
 		var keyFrames;
 		function keyFrames(imgArr){
-			keyFrames = new CanvasKeyFrames(document.querySelector('.container'), 'array', imgArr, {
-				fps:10,
-				width:300,
-				height:300
-			});
+			keyFrames = CanvasKeyFrames(document.querySelector('.container'),  imgArr, 'array', {
+				fps: 1,
+				width: 300,
+				height: 300
+			})
+			// keyFrames = new CanvasKeyFrames(document.querySelector('.container'), 'array', imgArr, {
+			// 	fps:10,
+			// 	width:300,
+			// 	height:300
+			// });
 			//keyFrames.play();
 		}
 	</script>
diff --git a/demos/sprite/index-sprite.html b/demos/sprite/index-sprite.html
index db8ce6f..4942470 100644
--- a/demos/sprite/index-sprite.html
+++ b/demos/sprite/index-sprite.html
@@ -14,23 +14,16 @@
 		
 	</div>
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/vConsole/3.2.0/vconsole.min.js"></script>
-	<script src="../../dist/canvas-keyframes.min.js"></script>
+	<script src="../../lib/canvas-keyframes.min.js"></script>
 	<script>
 		// 初始化vConsole
 		window.vConsole = new window.VConsole();
 		console.info('欢迎使用 vConsole。可用于展示 console 日志,方便开发、调试。');
-		
 		var keyFrames;
 		function keyFrames(img){
-			keyFrames = new CanvasKeyFrames(document.querySelector('.container'), 'sprite', img, {
-				fps:20,
-				width:300,
-				height:300,
-                _iw: 300,
-                _ih: 300,
-                framesCount: 16
-			});
-			keyFrames.fromTo(0, 10)
+			keyFrames = CanvasKeyFrames(document.querySelector('.container'),  [1,2,3,4,5,6,7,8,9,10], 'array', {
+				fps: 1
+			})
 		}
 
 		(function(){
@@ -43,7 +36,6 @@
 			}
 			img.src = 'imgs/1.jpg';
 		})();
-		
 	</script>
 </body>
 </html>
\ No newline at end of file
diff --git a/lib/canvas-keyframes.es.js b/lib/canvas-keyframes.es.js
new file mode 100644
index 0000000..34a9912
--- /dev/null
+++ b/lib/canvas-keyframes.es.js
@@ -0,0 +1,327 @@
+/*
+ * anime.js v1.0.0
+ * (c) 2019 wenyi
+ * Released under the MIT license
+ */
+
+// Defaults
+
+var defaultSettings = {
+    el: null,
+    mode: 'array',
+    direction: 'normal',
+    fps: 30,
+    imgs: null,
+    loop: true,
+    autoplay: false,
+    cover: 0,
+    process: 0,
+    framesLenth: 0,
+    ispause: true,
+    state: 'stop',
+    start: 0,
+    end: 0,
+    remaining: 0,
+    completed: false,
+    update: null,
+    begin: null,
+    complete: null,
+    repeat: false,
+    repeatDirec: true
+};
+var is = {
+  arr: function (a) { return Array.isArray(a); },
+  obj: function (a) { return stringContains(Object.prototype.toString.call(a), 'Object'); },
+  pth: function (a) { return is.obj(a) && a.hasOwnProperty('totalLength'); },
+  svg: function (a) { return a instanceof SVGElement; },
+  inp: function (a) { return a instanceof HTMLInputElement; },
+  dom: function (a) { return a.nodeType || is.svg(a); },
+  str: function (a) { return typeof a === 'string'; },
+  fnc: function (a) { return typeof a === 'function'; },
+  und: function (a) { return typeof a === 'undefined'; },
+  hex: function (a) { return /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(a); },
+  rgb: function (a) { return /^rgb/.test(a); },
+  hsl: function (a) { return /^hsl/.test(a); },
+  col: function (a) { return (is.hex(a) || is.rgb(a) || is.hsl(a)); },
+  key: function (a) { return !defaultInstanceSettings.hasOwnProperty(a) && !defaultTweenSettings.hasOwnProperty(a) && a !== 'targets' && a !== 'keyframes'; }
+};
+function cloneObject(o) {
+    var clone = {};
+    for (var p in o) { clone[p] = o[p]; }
+    return clone;
+}
+  
+function replaceObjectProps(o1, o2) {
+    var o = cloneObject(o1);
+    for (var p in o1) { o[p] = o2.hasOwnProperty(p) ? o2[p] : o1[p]; }
+    return o;
+}
+function mergeObjects(o1, o2) {
+    var o = cloneObject(o1);
+    for (var p in o2) { o[p] = is.und(o1[p]) ? o2[p] : o1[p]; }
+    return o;
+}
+function getApriteArray(obj, obj2) {
+    if ( obj === void 0 ) obj = {};
+    if ( obj2 === void 0 ) obj2 = {};
+
+    var width = obj.width;
+    var height = obj.height;
+    var w = obj2.w;
+    var h = obj2.h;
+    //计算雪碧图数量
+    var wt = width / w;
+    var ht = height / h;
+    var spriteArray = [];
+    // 手动生成雪碧图坐标 一维数组
+    for (var j=0;j<ht; j++) {
+        for (var i=0; i<wt; i++) {
+            spriteArray.push({
+                x: w * i,
+                y: h * j
+            });
+        }
+    }
+    return spriteArray;
+}
+function createCanvas(instance) {
+    var canvas = document.createElement('canvas');
+    canvas.width = instance.width * window.devicePixelRatio || instance.el.clientWidth;
+    canvas.height = instance.height * window.devicePixelRatio || instance.el.clientHeight;
+    canvas.style.display = 'block';
+    canvas.style.width = '100%';
+    canvas.style.height = '100%';
+    instance.ctx = canvas.getContext('2d');
+    instance.el.appendChild(canvas);
+
+    instance.canvas = canvas;
+    return instance;
+}
+var instanceID = 0;
+
+function createNewInstance(params) {
+    var settings = replaceObjectProps(defaultSettings, params);
+    var id = instanceID;
+    instanceID++;
+    return mergeObjects(settings, {
+        id: id
+    });
+}
+var raf;
+var activeInstance = null;
+var engine = (function () {
+    function play() {
+      raf = requestAnimationFrame(step);
+    }
+    function step(t) {
+      if (!activeInstance.ispause) {
+        activeInstance.tick(t);
+        play();
+      } else {
+        raf = cancelAnimationFrame(raf);
+      }
+    }
+    return play;
+})();
+function CanvasKeyFrames(el, imgs, mode, params) {
+    if ( params === void 0 ) params = {};
+
+    if (!el || !imgs) {
+        throw new Error('el和imgs是必填参数')
+    }
+    if (mode !== 'array' && mode !== 'sprite') {
+        throw new Error('只支持"array"和"sprite"模式')
+    }
+    var resolve = null;
+    var now = 0;
+    var then = Date.now();
+    var delta = 0;
+    function makePromise(instance) {
+        var promise = window.Promise && new Promise(function (_resolve) { return resolve = _resolve; });
+        instance.finished = promise;
+        return promise;
+    }
+    if (mode === 'array') {
+        params.framesLenth = imgs.length;
+    } else {
+        params.spriteArray =  getApriteArray({width: imgs.width, width: imgs.height},{w: params._iw, h: params._ih});
+        params.framesLenth = params.spriteArray.length;
+    }
+    params.el = el;
+    params.mode = mode;
+    params.imgs = imgs;
+    params.start = 0;
+    params.end = params.framesLenth - 1;
+    params.remaining = params.framesLenth;
+    var instance = createNewInstance(params);
+    var interval = 1000 / instance.fps;
+    createCanvas(instance);
+
+    var promise = makePromise(instance);
+    function drawImg() {
+        var n = instance.process;
+        instance.ctx.clearRect(0, 0, instance.canvas.width, instance.canvas.height);
+
+        if (instance.mode === 'array') {
+            //判断图片有没有宽度
+            if (instance.imgs[n].width !== 0) {
+                instance.ctx.drawImage(instance.imgs[n], 0, 0, instance.canvas.width, instance.canvas.height);
+            }
+        } else if (instance.mode === 'sprite') {
+            if (instance.options.framesCount) {
+                instance.ctx.drawImage(instance.imgs, instance.spriteArray[n].x, instance.spriteArray[n].y, instance._iw, instance._ih, 0, 0, instance.canvas.width, instance.canvas.height);
+            } else {
+                var imgWidth = instance.imgs.width / instance.imgsLen;
+                instance.ctx.drawImage(instance.imgs, imgWidth * n, 0, imgWidth, instance.imgs.height, 0, 0, instance.canvas.width, instance.canvas.height);
+            }
+        } else {
+            throw new Error('没有匹配的模式')
+        }
+    }
+    function showCover() {
+        drawImg();
+    }
+    function setCallback(cb) {
+        if (instance[cb]) { instance[cb](instance); }
+    }
+    function countIteration() {
+        if (instance.remaining) {
+          instance.remaining--;
+        }
+    }
+    function setProgress() {
+        if (!instance.begin) {
+            console.log(instance.begin);
+            instance.begin = true;
+            instance.ispause = false;
+            instance.process = instance.start - 1;
+        }
+        countIteration();
+        if (!instance.remaining) {
+            if (!instance.completed) {
+              if (instance.repeat) {
+                instance.repeatDirec = !instance.repeatDirec;
+                if (instance.repeatDirec) {
+                    instance.direction = instance.direction === 'normal' ? 'alternate' : 'normal';
+                    if (instance.direction === 'normal') {
+                        var start = instance.start;
+                        var end = instance.end;
+                        if (start > end) {
+                            instance.start = end;
+                            instance.end = start;
+                        }
+                    }
+                } else {
+                    instance.direction = instance.direction === 'alternate' ? 'normal' : 'alternate';
+                }
+              }
+              instance.completed = true;
+              setCallback('complete');
+            }
+            if (instance.loop) {
+                instance.completed = false;
+                instance.remaining = Math.abs(instance.end - instance.start) + 1;
+                
+                if (instance.repeat) {
+                    if (instance.repeatDirec) {
+                        instance.process = instance.start;
+                    } else {
+                        instance.process = instance.end;
+                    }
+                } else {
+                    instance.process = instance.start;
+                }
+            } else {
+                instance.pause();
+            }
+        } else {
+            if (instance.direction === 'normal') {
+                instance.process = instance.process >= instance.end ? instance.start : instance.process + 1;
+            } else {
+                instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
+            }
+        }
+    }
+    instance.tick = function(t) {
+        now = Date.now();
+      delta = now - then;
+      if (delta > interval) {
+        then = now - (delta % interval);
+            setProgress();
+            drawImg();
+      }
+    };
+    instance.goto = function(n) {
+        instance.process = n;
+    };
+    instance.next = function() {
+        var n = instance.process + 1 >= instance.framesLenth ? 0 : instance.process + 1;
+        instance.goto(n);
+    };
+    instance.prev = function() {
+        var n = instance.process - 1 <= 0 ? instance.framesLenth - 1 : instance.process - 1;
+        instance.goto(n);
+    };
+    instance.fromTo = function(params) {
+        if ( params === void 0 ) params = {};
+
+        var from = params.from;
+        var to = params.to;
+        var loop = params.loop;
+        var complete = params.complete;
+        instance.loop = loop;
+        instance.complete = complete;
+        if (from <= to) {
+            instance.direction = 'normal';
+            instance.repeatDirec = true;
+            instance.start = from > -1 ? from : 0;
+            instance.end = to < instance.framesLenth ? to : instance.framesLenth - 1;
+        } else {
+            instance.direction = 'alternate';
+            instance.repeatDirec = false;
+            instance.start = from < instance.framesLenth ? from : instance.framesLenth - 1;
+            instance.end = to > -1 ? to : 0;
+        }
+        instance.remaining = Math.abs(instance.end -  instance.start) + 1;
+        instance.process = instance.start;
+        instance.play();
+    };
+    instance.repeatloop = function (obj) {
+        if ( obj === void 0 ) obj = {};
+
+        instance.repeat = true;
+        instance.fromTo(obj);
+    };
+    instance.pause = function() {
+        instance.ispause = true;
+        instance.state = 'stop';
+    };
+    instance.stop = function() {
+        instance.begin = false;
+        instance.state = 'stop';
+        instance.ispause = true;
+        instance.process = 0;
+    };
+    instance.play = function() {
+        if (!instance.ispause) { return; }
+        instance.ispause = false;
+        activeInstance = instance;
+        if (!raf) { engine(); }
+    };
+    instance.destroy = function(){
+        instance.ctx = null;
+        instance.canvas.remove();
+        instance.canvas = null;
+        for (var key in instance){
+            delete instance[key];
+        }
+    };
+    showCover();
+    if (instance.autoplay) { instance.play(); }
+    return instance;
+}
+
+CanvasKeyFrames.version = '1.0.0';
+CanvasKeyFrames.random = function (min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; };
+
+export default CanvasKeyFrames;
diff --git a/lib/canvas-keyframes.js b/lib/canvas-keyframes.js
new file mode 100644
index 0000000..f5de0f5
--- /dev/null
+++ b/lib/canvas-keyframes.js
@@ -0,0 +1,329 @@
+/*
+ * anime.js v1.0.0
+ * (c) 2019 wenyi
+ * Released under the MIT license
+ */
+
+'use strict';
+
+// Defaults
+
+var defaultSettings = {
+    el: null,
+    mode: 'array',
+    direction: 'normal',
+    fps: 30,
+    imgs: null,
+    loop: true,
+    autoplay: false,
+    cover: 0,
+    process: 0,
+    framesLenth: 0,
+    ispause: true,
+    state: 'stop',
+    start: 0,
+    end: 0,
+    remaining: 0,
+    completed: false,
+    update: null,
+    begin: null,
+    complete: null,
+    repeat: false,
+    repeatDirec: true
+};
+var is = {
+  arr: function (a) { return Array.isArray(a); },
+  obj: function (a) { return stringContains(Object.prototype.toString.call(a), 'Object'); },
+  pth: function (a) { return is.obj(a) && a.hasOwnProperty('totalLength'); },
+  svg: function (a) { return a instanceof SVGElement; },
+  inp: function (a) { return a instanceof HTMLInputElement; },
+  dom: function (a) { return a.nodeType || is.svg(a); },
+  str: function (a) { return typeof a === 'string'; },
+  fnc: function (a) { return typeof a === 'function'; },
+  und: function (a) { return typeof a === 'undefined'; },
+  hex: function (a) { return /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(a); },
+  rgb: function (a) { return /^rgb/.test(a); },
+  hsl: function (a) { return /^hsl/.test(a); },
+  col: function (a) { return (is.hex(a) || is.rgb(a) || is.hsl(a)); },
+  key: function (a) { return !defaultInstanceSettings.hasOwnProperty(a) && !defaultTweenSettings.hasOwnProperty(a) && a !== 'targets' && a !== 'keyframes'; }
+};
+function cloneObject(o) {
+    var clone = {};
+    for (var p in o) { clone[p] = o[p]; }
+    return clone;
+}
+  
+function replaceObjectProps(o1, o2) {
+    var o = cloneObject(o1);
+    for (var p in o1) { o[p] = o2.hasOwnProperty(p) ? o2[p] : o1[p]; }
+    return o;
+}
+function mergeObjects(o1, o2) {
+    var o = cloneObject(o1);
+    for (var p in o2) { o[p] = is.und(o1[p]) ? o2[p] : o1[p]; }
+    return o;
+}
+function getApriteArray(obj, obj2) {
+    if ( obj === void 0 ) obj = {};
+    if ( obj2 === void 0 ) obj2 = {};
+
+    var width = obj.width;
+    var height = obj.height;
+    var w = obj2.w;
+    var h = obj2.h;
+    //计算雪碧图数量
+    var wt = width / w;
+    var ht = height / h;
+    var spriteArray = [];
+    // 手动生成雪碧图坐标 一维数组
+    for (var j=0;j<ht; j++) {
+        for (var i=0; i<wt; i++) {
+            spriteArray.push({
+                x: w * i,
+                y: h * j
+            });
+        }
+    }
+    return spriteArray;
+}
+function createCanvas(instance) {
+    var canvas = document.createElement('canvas');
+    canvas.width = instance.width * window.devicePixelRatio || instance.el.clientWidth;
+    canvas.height = instance.height * window.devicePixelRatio || instance.el.clientHeight;
+    canvas.style.display = 'block';
+    canvas.style.width = '100%';
+    canvas.style.height = '100%';
+    instance.ctx = canvas.getContext('2d');
+    instance.el.appendChild(canvas);
+
+    instance.canvas = canvas;
+    return instance;
+}
+var instanceID = 0;
+
+function createNewInstance(params) {
+    var settings = replaceObjectProps(defaultSettings, params);
+    var id = instanceID;
+    instanceID++;
+    return mergeObjects(settings, {
+        id: id
+    });
+}
+var raf;
+var activeInstance = null;
+var engine = (function () {
+    function play() {
+      raf = requestAnimationFrame(step);
+    }
+    function step(t) {
+      if (!activeInstance.ispause) {
+        activeInstance.tick(t);
+        play();
+      } else {
+        raf = cancelAnimationFrame(raf);
+      }
+    }
+    return play;
+})();
+function CanvasKeyFrames(el, imgs, mode, params) {
+    if ( params === void 0 ) params = {};
+
+    if (!el || !imgs) {
+        throw new Error('el和imgs是必填参数')
+    }
+    if (mode !== 'array' && mode !== 'sprite') {
+        throw new Error('只支持"array"和"sprite"模式')
+    }
+    var resolve = null;
+    var now = 0;
+    var then = Date.now();
+    var delta = 0;
+    function makePromise(instance) {
+        var promise = window.Promise && new Promise(function (_resolve) { return resolve = _resolve; });
+        instance.finished = promise;
+        return promise;
+    }
+    if (mode === 'array') {
+        params.framesLenth = imgs.length;
+    } else {
+        params.spriteArray =  getApriteArray({width: imgs.width, width: imgs.height},{w: params._iw, h: params._ih});
+        params.framesLenth = params.spriteArray.length;
+    }
+    params.el = el;
+    params.mode = mode;
+    params.imgs = imgs;
+    params.start = 0;
+    params.end = params.framesLenth - 1;
+    params.remaining = params.framesLenth;
+    var instance = createNewInstance(params);
+    var interval = 1000 / instance.fps;
+    createCanvas(instance);
+
+    var promise = makePromise(instance);
+    function drawImg() {
+        var n = instance.process;
+        instance.ctx.clearRect(0, 0, instance.canvas.width, instance.canvas.height);
+
+        if (instance.mode === 'array') {
+            //判断图片有没有宽度
+            if (instance.imgs[n].width !== 0) {
+                instance.ctx.drawImage(instance.imgs[n], 0, 0, instance.canvas.width, instance.canvas.height);
+            }
+        } else if (instance.mode === 'sprite') {
+            if (instance.options.framesCount) {
+                instance.ctx.drawImage(instance.imgs, instance.spriteArray[n].x, instance.spriteArray[n].y, instance._iw, instance._ih, 0, 0, instance.canvas.width, instance.canvas.height);
+            } else {
+                var imgWidth = instance.imgs.width / instance.imgsLen;
+                instance.ctx.drawImage(instance.imgs, imgWidth * n, 0, imgWidth, instance.imgs.height, 0, 0, instance.canvas.width, instance.canvas.height);
+            }
+        } else {
+            throw new Error('没有匹配的模式')
+        }
+    }
+    function showCover() {
+        drawImg();
+    }
+    function setCallback(cb) {
+        if (instance[cb]) { instance[cb](instance); }
+    }
+    function countIteration() {
+        if (instance.remaining) {
+          instance.remaining--;
+        }
+    }
+    function setProgress() {
+        if (!instance.begin) {
+            console.log(instance.begin);
+            instance.begin = true;
+            instance.ispause = false;
+            instance.process = instance.start - 1;
+        }
+        countIteration();
+        if (!instance.remaining) {
+            if (!instance.completed) {
+              if (instance.repeat) {
+                instance.repeatDirec = !instance.repeatDirec;
+                if (instance.repeatDirec) {
+                    instance.direction = instance.direction === 'normal' ? 'alternate' : 'normal';
+                    if (instance.direction === 'normal') {
+                        var start = instance.start;
+                        var end = instance.end;
+                        if (start > end) {
+                            instance.start = end;
+                            instance.end = start;
+                        }
+                    }
+                } else {
+                    instance.direction = instance.direction === 'alternate' ? 'normal' : 'alternate';
+                }
+              }
+              instance.completed = true;
+              setCallback('complete');
+            }
+            if (instance.loop) {
+                instance.completed = false;
+                instance.remaining = Math.abs(instance.end - instance.start) + 1;
+                
+                if (instance.repeat) {
+                    if (instance.repeatDirec) {
+                        instance.process = instance.start;
+                    } else {
+                        instance.process = instance.end;
+                    }
+                } else {
+                    instance.process = instance.start;
+                }
+            } else {
+                instance.pause();
+            }
+        } else {
+            if (instance.direction === 'normal') {
+                instance.process = instance.process >= instance.end ? instance.start : instance.process + 1;
+            } else {
+                instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
+            }
+        }
+    }
+    instance.tick = function(t) {
+        now = Date.now();
+      delta = now - then;
+      if (delta > interval) {
+        then = now - (delta % interval);
+            setProgress();
+            drawImg();
+      }
+    };
+    instance.goto = function(n) {
+        instance.process = n;
+    };
+    instance.next = function() {
+        var n = instance.process + 1 >= instance.framesLenth ? 0 : instance.process + 1;
+        instance.goto(n);
+    };
+    instance.prev = function() {
+        var n = instance.process - 1 <= 0 ? instance.framesLenth - 1 : instance.process - 1;
+        instance.goto(n);
+    };
+    instance.fromTo = function(params) {
+        if ( params === void 0 ) params = {};
+
+        var from = params.from;
+        var to = params.to;
+        var loop = params.loop;
+        var complete = params.complete;
+        instance.loop = loop;
+        instance.complete = complete;
+        if (from <= to) {
+            instance.direction = 'normal';
+            instance.repeatDirec = true;
+            instance.start = from > -1 ? from : 0;
+            instance.end = to < instance.framesLenth ? to : instance.framesLenth - 1;
+        } else {
+            instance.direction = 'alternate';
+            instance.repeatDirec = false;
+            instance.start = from < instance.framesLenth ? from : instance.framesLenth - 1;
+            instance.end = to > -1 ? to : 0;
+        }
+        instance.remaining = Math.abs(instance.end -  instance.start) + 1;
+        instance.process = instance.start;
+        instance.play();
+    };
+    instance.repeatloop = function (obj) {
+        if ( obj === void 0 ) obj = {};
+
+        instance.repeat = true;
+        instance.fromTo(obj);
+    };
+    instance.pause = function() {
+        instance.ispause = true;
+        instance.state = 'stop';
+    };
+    instance.stop = function() {
+        instance.begin = false;
+        instance.state = 'stop';
+        instance.ispause = true;
+        instance.process = 0;
+    };
+    instance.play = function() {
+        if (!instance.ispause) { return; }
+        instance.ispause = false;
+        activeInstance = instance;
+        if (!raf) { engine(); }
+    };
+    instance.destroy = function(){
+        instance.ctx = null;
+        instance.canvas.remove();
+        instance.canvas = null;
+        for (var key in instance){
+            delete instance[key];
+        }
+    };
+    showCover();
+    if (instance.autoplay) { instance.play(); }
+    return instance;
+}
+
+CanvasKeyFrames.version = '1.0.0';
+CanvasKeyFrames.random = function (min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; };
+
+module.exports = CanvasKeyFrames;
diff --git a/lib/canvas-keyframes.min.js b/lib/canvas-keyframes.min.js
new file mode 100644
index 0000000..969b1c6
--- /dev/null
+++ b/lib/canvas-keyframes.min.js
@@ -0,0 +1,7 @@
+/*
+ * anime.js v1.0.0
+ * (c) 2019 wenyi
+ * Released under the MIT license
+ */
+
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.CanvasKeyFrames=t()}(this,function(){"use strict";var r={el:null,mode:"array",direction:"normal",fps:30,imgs:null,loop:!0,autoplay:!1,cover:0,process:0,framesLenth:0,ispause:!0,state:"stop",start:0,end:0,remaining:0,completed:!1,update:null,begin:null,complete:null,repeat:!1,repeatDirec:!0},i={arr:function(e){return Array.isArray(e)},obj:function(e){return stringContains(Object.prototype.toString.call(e),"Object")},pth:function(e){return i.obj(e)&&e.hasOwnProperty("totalLength")},svg:function(e){return e instanceof SVGElement},inp:function(e){return e instanceof HTMLInputElement},dom:function(e){return e.nodeType||i.svg(e)},str:function(e){return"string"==typeof e},fnc:function(e){return"function"==typeof e},und:function(e){return void 0===e},hex:function(e){return/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(e)},rgb:function(e){return/^rgb/.test(e)},hsl:function(e){return/^hsl/.test(e)},col:function(e){return i.hex(e)||i.rgb(e)||i.hsl(e)},key:function(e){return!defaultInstanceSettings.hasOwnProperty(e)&&!defaultTweenSettings.hasOwnProperty(e)&&"targets"!==e&&"keyframes"!==e}};function o(e){var t={};for(var n in e)t[n]=e[n];return t}var d,a=0;function h(e){var t=function(e,t){var n=o(e);for(var r in e)n[r]=t.hasOwnProperty(r)?t[r]:e[r];return n}(r,e),n=a;return a++,function(e,t){var n=o(e);for(var r in t)n[r]=i.und(e[r])?t[r]:e[r];return n}(t,{id:n})}var m=null,g=function(){function t(){d=requestAnimationFrame(e)}function e(e){m.ispause?d=cancelAnimationFrame(d):(m.tick(e),t())}return t}();function e(e,t,n,r){if(void 0===r&&(r={}),!e||!t)throw new Error("el和imgs是必填参数");if("array"!==n&&"sprite"!==n)throw new Error('只支持"array"和"sprite"模式');var i=0,o=Date.now(),a=0;"array"===n?r.framesLenth=t.length:(r.spriteArray=function(e,t){void 0===e&&(e={}),void 0===t&&(t={});for(var n=e.width,r=e.height,i=t.w,o=t.h,a=n/i,s=r/o,c=[],u=0;u<s;u++)for(var p=0;p<a;p++)c.push({x:i*p,y:o*u});return c}({width:t.width,width:t.height},{w:r._iw,h:r._ih}),r.framesLenth=r.spriteArray.length),r.el=e,r.mode=n,r.imgs=t,r.start=0,r.end=r.framesLenth-1,r.remaining=r.framesLenth;var s=h(r),c=1e3/s.fps;!function(e){var t=document.createElement("canvas");t.width=e.width*window.devicePixelRatio||e.el.clientWidth,t.height=e.height*window.devicePixelRatio||e.el.clientHeight,t.style.display="block",t.style.width="100%",t.style.height="100%",e.ctx=t.getContext("2d"),e.el.appendChild(t),e.canvas=t}(s);var u,p;u=s,p=window.Promise&&new Promise(function(e){return e}),u.finished=p;function f(){var e=s.process;if(s.ctx.clearRect(0,0,s.canvas.width,s.canvas.height),"array"===s.mode)0!==s.imgs[e].width&&s.ctx.drawImage(s.imgs[e],0,0,s.canvas.width,s.canvas.height);else{if("sprite"!==s.mode)throw new Error("没有匹配的模式");if(s.options.framesCount)s.ctx.drawImage(s.imgs,s.spriteArray[e].x,s.spriteArray[e].y,s._iw,s._ih,0,0,s.canvas.width,s.canvas.height);else{var t=s.imgs.width/s.imgsLen;s.ctx.drawImage(s.imgs,t*e,0,t,s.imgs.height,0,0,s.canvas.width,s.canvas.height)}}}function l(){if(s.begin||(console.log(s.begin),s.begin=!0,s.ispause=!1,s.process=s.start-1),s.remaining&&s.remaining--,s.remaining)"normal"===s.direction?s.process=s.process>=s.end?s.start:s.process+1:s.process=s.process<=0?s.start:s.process-1;else{if(!s.completed){if(s.repeat)if(s.repeatDirec=!s.repeatDirec,s.repeatDirec){if(s.direction="normal"===s.direction?"alternate":"normal","normal"===s.direction){var e=s.start,t=s.end;t<e&&(s.start=t,s.end=e)}}else s.direction="alternate"===s.direction?"normal":"alternate";s.completed=!0,function(e){s[e]&&s[e](s)}("complete")}s.loop?(s.completed=!1,s.remaining=Math.abs(s.end-s.start)+1,s.repeat?s.repeatDirec?s.process=s.start:s.process=s.end:s.process=s.start):s.pause()}}return s.tick=function(e){i=Date.now(),c<(a=i-o)&&(o=i-a%c,l(),f())},s.goto=function(e){s.process=e},s.next=function(){var e=s.process+1>=s.framesLenth?0:s.process+1;s.goto(e)},s.prev=function(){var e=s.process-1<=0?s.framesLenth-1:s.process-1;s.goto(e)},s.fromTo=function(e){void 0===e&&(e={});var t=e.from,n=e.to,r=e.loop,i=e.complete;s.loop=r,s.complete=i,t<=n?(s.direction="normal",s.repeatDirec=!0,s.start=-1<t?t:0,s.end=n<s.framesLenth?n:s.framesLenth-1):(s.direction="alternate",s.repeatDirec=!1,s.start=t<s.framesLenth?t:s.framesLenth-1,s.end=-1<n?n:0),s.remaining=Math.abs(s.end-s.start)+1,s.process=s.start,s.play()},s.repeatloop=function(e){void 0===e&&(e={}),s.repeat=!0,s.fromTo(e)},s.pause=function(){s.ispause=!0,s.state="stop"},s.stop=function(){s.begin=!1,s.state="stop",s.ispause=!0,s.process=0},s.play=function(){s.ispause&&(s.ispause=!1,m=s,d||g())},s.destroy=function(){for(var e in s.ctx=null,s.canvas.remove(),s.canvas=null,s)delete s[e]},f(),s.autoplay&&s.play(),s}return e.version="1.0.0",e.random=function(e,t){return Math.floor(Math.random()*(t-e+1))+e},e});
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 9b6bf4e..54143d8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,3551 +1,199 @@
 {
   "name": "canvaskeyframes",
-  "version": "0.2.0",
+  "version": "0.4.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
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-      "dev": true,
-      "requires": {
-        "ansi-wrap": "^0.1.0"
-      }
-    },
-    "ansi-gray": {
-      "version": "0.1.1",
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-      "integrity": "sha1-KWLPVOyXksSFEKPetSRDaGHvclE=",
-      "dev": true,
-      "requires": {
-        "ansi-wrap": "0.1.0"
-      }
-    },
-    "ansi-regex": {
-      "version": "2.1.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
-      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
-      "dev": true
-    },
-    "ansi-wrap": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/ansi-wrap/-/ansi-wrap-0.1.0.tgz",
-      "integrity": "sha1-qCJQ3bABXponyoLoLqYDu/pF768=",
-      "dev": true
-    },
-    "anymatch": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-2.0.0.tgz",
-      "integrity": "sha512-5teOsQWABXHHBFP9y3skS5P3d/WfWXpv3FUpy+LorMrNYaT9pI4oLMQX7jzQ2KklNpGpWHzdCXTDT2Y3XGlZBw==",
-      "dev": true,
-      "requires": {
-        "micromatch": "^3.1.4",
-        "normalize-path": "^2.1.1"
-      }
-    },
-    "append-buffer": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/append-buffer/-/append-buffer-1.0.2.tgz",
-      "integrity": "sha1-2CIM9GYIFSXv6lBhTz3mUU36WPE=",
-      "dev": true,
-      "requires": {
-        "buffer-equal": "^1.0.0"
-      }
-    },
-    "archy": {
-      "version": "1.0.0",
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-      "integrity": "sha1-+cjBN1fMHde8N5rHeyxipcKGjEA=",
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 }
diff --git a/package.json b/package.json
index ff2a4ba..bdb91b7 100644
--- a/package.json
+++ b/package.json
@@ -1,33 +1,28 @@
 {
-  "name": "canvaskeyframes",
-  "version": "0.4.2",
-  "description": "The simplest sequence frame animation plugin of canvas .",
-  "main": "./src/canvas-keyframes.js",
+  "name": "canvas-keyframes",
+  "version": "1.0.0",
+  "repository": "wenyiweb/canvasKeyFrames",
+  "description": "JavaScript canvas animation",
+  "umd:main": "lib/canvas-keyframes.min.js",
+  "module": "lib/canvas-keyframes.es.js",
+  "main": "lib/canvas-keyframes.js",
+  "umd:name": "CanvasKeyFrames",
+  "license": "MIT",
+  "author": "wenyi <yangwenyi0@126.com>",
+  "files": [
+    "lib"
+  ],
   "scripts": {
-    "test": "./node_modules/.bin/_mocha",
-    "build": "gulp compress"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/wenyiweb/canvasKeyFrames.git"
+    "build": "node build"
   },
-  "keywords": [
-    "canvas",
-    "animation",
-    "keyframe"
-  ],
-  "author": "kevin",
-  "license": "MIT",
   "bugs": {
     "url": "https://github.com/wenyiweb/canvasKeyFrames/issues"
   },
-  "homepage": "https://github.com/wenyiweb/canvasKeyFrames#readme",
-  "devDependencies": {
-    "gulp": "^4.0.1",
-    "gulp-rename": "^1.4.0",
-    "gulp-uglify": "^3.0.2",
-    "mocha": "^5.0.5",
-    "readable-stream": "^3.3.0",
-    "should": "^13.2.1"
-  }
-}
+  "keywords": [
+    "canvas-keyframes",
+    "animation",
+    "javascript",
+    "keyframes",
+    "canvas"
+  ]
+}
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
new file mode 100644
index 0000000..8b3effc
--- /dev/null
+++ b/src/index.js
@@ -0,0 +1,314 @@
+// Defaults
+
+const defaultSettings = {
+    el: null,
+    mode: 'array',
+    direction: 'normal',
+    fps: 30,
+    imgs: null,
+    loop: true,
+    autoplay: false,
+    cover: 0,
+    process: 0,
+    framesLenth: 0,
+    ispause: true,
+    state: 'stop',
+    start: 0,
+    end: 0,
+    remaining: 0,
+    completed: false,
+    update: null,
+    begin: null,
+    complete: null,
+    repeat: false,
+    repeatDirec: true
+}
+const is = {
+  arr: a => Array.isArray(a),
+  obj: a => stringContains(Object.prototype.toString.call(a), 'Object'),
+  pth: a => is.obj(a) && a.hasOwnProperty('totalLength'),
+  svg: a => a instanceof SVGElement,
+  inp: a => a instanceof HTMLInputElement,
+  dom: a => a.nodeType || is.svg(a),
+  str: a => typeof a === 'string',
+  fnc: a => typeof a === 'function',
+  und: a => typeof a === 'undefined',
+  hex: a => /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(a),
+  rgb: a => /^rgb/.test(a),
+  hsl: a => /^hsl/.test(a),
+  col: a => (is.hex(a) || is.rgb(a) || is.hsl(a)),
+  key: a => !defaultInstanceSettings.hasOwnProperty(a) && !defaultTweenSettings.hasOwnProperty(a) && a !== 'targets' && a !== 'keyframes'
+}
+function cloneObject(o) {
+    const clone = {};
+    for (let p in o) clone[p] = o[p];
+    return clone;
+}
+  
+function replaceObjectProps(o1, o2) {
+    const o = cloneObject(o1);
+    for (let p in o1) o[p] = o2.hasOwnProperty(p) ? o2[p] : o1[p];
+    return o;
+}
+function mergeObjects(o1, o2) {
+    const o = cloneObject(o1);
+    for (let p in o2) o[p] = is.und(o1[p]) ? o2[p] : o1[p];
+    return o;
+}
+function getApriteArray(obj = {}, obj2 = {}) {
+    let {width, height} = obj;
+    let {w, h} = obj2;
+    //计算雪碧图数量
+    const wt = width / w;
+    const ht = height / h;
+    var spriteArray = [];
+    // 手动生成雪碧图坐标 一维数组
+    for (var j=0;j<ht; j++) {
+        for (var i=0; i<wt; i++) {
+            spriteArray.push({
+                x: w * i,
+                y: h * j
+            })
+        }
+    }
+    return spriteArray;
+}
+function createCanvas(instance) {
+    var canvas = document.createElement('canvas');
+    canvas.width = instance.width * window.devicePixelRatio || instance.el.clientWidth;
+    canvas.height = instance.height * window.devicePixelRatio || instance.el.clientHeight;
+    canvas.style.display = 'block';
+    canvas.style.width = '100%';
+    canvas.style.height = '100%';
+    instance.ctx = canvas.getContext('2d');
+    instance.el.appendChild(canvas);
+
+    instance.canvas = canvas;
+    return instance;
+};
+let instanceID = 0;
+
+function createNewInstance(params) {
+    const settings = replaceObjectProps(defaultSettings, params);
+    const id = instanceID;
+    instanceID++;
+    return mergeObjects(settings, {
+        id: id
+    });
+}
+let raf;
+let activeInstance = null;
+const engine = (() => {
+    function play() {
+      raf = requestAnimationFrame(step);
+    }
+    function step(t) {
+      if (!activeInstance.ispause) {
+        activeInstance.tick(t);
+        play();
+      } else {
+        raf = cancelAnimationFrame(raf);
+      }
+    }
+    return play;
+})();
+function CanvasKeyFrames(el, imgs, mode, params = {}) {
+    if (!el || !imgs) {
+        throw new Error('el和imgs是必填参数')
+    }
+    if (mode !== 'array' && mode !== 'sprite') {
+        throw new Error('只支持"array"和"sprite"模式')
+    }
+    let resolve = null;
+    let now = 0;
+    let then = Date.now();
+    let delta = 0;
+    function makePromise(instance) {
+        const promise = window.Promise && new Promise(_resolve => resolve = _resolve);
+        instance.finished = promise;
+        return promise;
+    }
+    if (mode === 'array') {
+        params.framesLenth = imgs.length;
+    } else {
+        params.spriteArray =  getApriteArray({width: imgs.width, width: imgs.height},{w: params._iw, h: params._ih});
+        params.framesLenth = params.spriteArray.length;
+    }
+    params.el = el;
+    params.mode = mode;
+    params.imgs = imgs;
+    params.start = 0;
+    params.end = params.framesLenth - 1;
+    params.remaining = params.framesLenth;
+    let instance = createNewInstance(params);
+    let interval = 1000 / instance.fps;
+    createCanvas(instance);
+
+    let promise = makePromise(instance);
+    function toggleDirection() {
+        const direction = instance.direction;
+        if (direction !== 'alternate'){
+            instance.direction = direction !== 'normal' ? 'normal' : 'reverse';
+        }
+        instance.reversed = !instance.reversed;
+    }
+    function drawImg() {
+        let n = instance.process;
+        instance.ctx.clearRect(0, 0, instance.canvas.width, instance.canvas.height);
+
+        if (instance.mode === 'array') {
+            //判断图片有没有宽度
+            if (instance.imgs[n].width !== 0) {
+                instance.ctx.drawImage(instance.imgs[n], 0, 0, instance.canvas.width, instance.canvas.height);
+            }
+        } else if (instance.mode === 'sprite') {
+            if (instance.options.framesCount) {
+                instance.ctx.drawImage(instance.imgs, instance.spriteArray[n].x, instance.spriteArray[n].y, instance._iw, instance._ih, 0, 0, instance.canvas.width, instance.canvas.height);
+            } else {
+                var imgWidth = instance.imgs.width / instance.imgsLen;
+                instance.ctx.drawImage(instance.imgs, imgWidth * n, 0, imgWidth, instance.imgs.height, 0, 0, instance.canvas.width, instance.canvas.height);
+            }
+        } else {
+            throw new Error('没有匹配的模式')
+        }
+    }
+    function showCover() {
+        drawImg();
+    }
+    function setCallback(cb) {
+        if (instance[cb]) instance[cb](instance);
+    }
+    function countIteration() {
+        if (instance.remaining) {
+          instance.remaining--;
+        }
+    }
+    function setProgress() {
+        if (!instance.begin) {
+            console.log(instance.begin);
+            instance.begin = true;
+            instance.ispause = false;
+            instance.process = instance.start - 1;
+        }
+        countIteration();
+        if (!instance.remaining) {
+            if (!instance.completed) {
+              if (instance.repeat) {
+                instance.repeatDirec = !instance.repeatDirec;
+                if (instance.repeatDirec) {
+                    instance.direction = instance.direction === 'normal' ? 'alternate' : 'normal'
+                    if (instance.direction === 'normal') {
+                        let {start, end} = instance;
+                        if (start > end) {
+                            instance.start = end;
+                            instance.end = start;
+                        }
+                    }
+                } else {
+                    instance.direction = instance.direction === 'alternate' ? 'normal' : 'alternate'
+                }
+              }
+              instance.completed = true;
+              setCallback('complete');
+            }
+            if (instance.loop) {
+                instance.completed = false;
+                instance.remaining = Math.abs(instance.end - instance.start) + 1;
+                
+                if (instance.repeat) {
+                    if (instance.repeatDirec) {
+                        instance.process = instance.start;
+                    } else {
+                        instance.process = instance.end;
+                    }
+                } else {
+                    instance.process = instance.start;
+                }
+            } else {
+                instance.pause();
+            }
+        } else {
+            if (instance.direction === 'normal') {
+                instance.process = instance.process >= instance.end ? instance.start : instance.process + 1
+            } else {
+                instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
+            }
+        }
+    }
+    instance.tick = function(t) {
+        now = Date.now();
+      delta = now - then;
+      if (delta > interval) {
+        then = now - (delta % interval);
+            setProgress();
+            drawImg();
+      }
+    }
+    instance.goto = function(n) {
+        instance.process = n;
+        drawImg();
+    }
+    instance.next = function() {
+        let n = instance.process + 1 >= instance.framesLenth ? 0 : instance.process + 1;
+        instance.goto(n);
+    }
+    instance.prev = function() {
+        let n = instance.process - 1 <= 0 ? instance.framesLenth - 1 : instance.process - 1;
+        instance.goto(n);
+    }
+    instance.fromTo = function(params = {}) {
+        let {from, to, loop, complete} = params;
+        instance.loop = loop;
+        instance.complete = complete;
+        if (from <= to) {
+            instance.direction = 'normal';
+            instance.repeatDirec = true;
+            instance.start = from > -1 ? from : 0;
+            instance.end = to < instance.framesLenth ? to : instance.framesLenth - 1;
+        } else {
+            instance.direction = 'alternate';
+            instance.repeatDirec = false;
+            instance.start = from < instance.framesLenth ? from : instance.framesLenth - 1;
+            instance.end = to > -1 ? to : 0;
+        }
+        instance.remaining = Math.abs(instance.end -  instance.start) + 1;
+        instance.process = instance.start;
+        instance.play();
+    }
+    instance.repeatloop = function (params = {}) {
+        instance.repeat = true;
+        instance.fromTo(params);
+    }
+    instance.pause = function() {
+        instance.ispause = true;
+        instance.state = 'stop';
+    }
+    instance.stop = function() {
+        instance.begin = false;
+        instance.state = 'stop';
+        instance.ispause = true;
+        instance.process = 0;
+    }
+    instance.play = function() {
+        if (!instance.ispause) return;
+        instance.ispause = false;
+        activeInstance = instance;
+        if (!raf) engine();
+    }
+    instance.destroy = function(){
+        instance.ctx = null;
+        instance.canvas.remove();
+        instance.canvas = null;
+        for (let key in instance){
+            delete instance[key];
+        }
+    }
+    showCover();
+    if (instance.autoplay) instance.play();
+    return instance;
+}
+
+CanvasKeyFrames.version = '1.0.0';
+CanvasKeyFrames.random = (min, max) => Math.floor(Math.random() * (max - min + 1)) + min;
+
+export default CanvasKeyFrames;
\ No newline at end of file

From e03e73166ee036cfdf129a8e31b78cbeb154c2fe Mon Sep 17 00:00:00 2001
From: "kevin.yang" <kevin.yang@all-dream.com>
Date: Mon, 5 Aug 2019 13:22:38 +0800
Subject: [PATCH 2/3] update

---
 lib/canvas-keyframes.es.js  | 42 +++++++++++++++++++++++++++++--------
 lib/canvas-keyframes.js     | 42 +++++++++++++++++++++++++++++--------
 lib/canvas-keyframes.min.js |  2 +-
 src/index.js                | 42 +++++++++++++++++++++++++------------
 4 files changed, 96 insertions(+), 32 deletions(-)

diff --git a/lib/canvas-keyframes.es.js b/lib/canvas-keyframes.es.js
index 34a9912..8312c39 100644
--- a/lib/canvas-keyframes.es.js
+++ b/lib/canvas-keyframes.es.js
@@ -5,7 +5,6 @@
  */
 
 // Defaults
-
 var defaultSettings = {
     el: null,
     mode: 'array',
@@ -186,19 +185,28 @@ function CanvasKeyFrames(el, imgs, mode, params) {
     }
     function countIteration() {
         if (instance.remaining) {
-          instance.remaining--;
+            instance.remaining--;
         }
     }
+    function resetTime() {
+        now = 0;
+        then = Date.now();
+        delta = 0;
+    }
     function setProgress() {
         if (!instance.begin) {
-            console.log(instance.begin);
             instance.begin = true;
             instance.ispause = false;
-            instance.process = instance.start - 1;
+            console.log(instance.process, 'aaa', instance.start);
+            instance.process = instance.direction === 'normal' ? instance.start - 1 : instance.start + 1;
+            console.log('动态',instance.process);
         }
+        console.log('???????????');
         countIteration();
         if (!instance.remaining) {
+            instance.ispause = true;
             if (!instance.completed) {
+              instance.completed = true;
               if (instance.repeat) {
                 instance.repeatDirec = !instance.repeatDirec;
                 if (instance.repeatDirec) {
@@ -215,7 +223,6 @@ function CanvasKeyFrames(el, imgs, mode, params) {
                     instance.direction = instance.direction === 'alternate' ? 'normal' : 'alternate';
                 }
               }
-              instance.completed = true;
               setCallback('complete');
             }
             if (instance.loop) {
@@ -232,6 +239,11 @@ function CanvasKeyFrames(el, imgs, mode, params) {
                     instance.process = instance.start;
                 }
             } else {
+                if (instance.direction === 'normal') {
+                    instance.process = instance.process >= instance.end ? instance.start : instance.process + 1;
+                } else {
+                    instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
+                }
                 instance.pause();
             }
         } else {
@@ -241,18 +253,21 @@ function CanvasKeyFrames(el, imgs, mode, params) {
                 instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
             }
         }
+        console.log('打印instance.process=>', instance.process);
     }
     instance.tick = function(t) {
         now = Date.now();
       delta = now - then;
-      if (delta > interval) {
+      if (delta > interval && !instance.ispause) {
         then = now - (delta % interval);
+            console.log('enter', instance.process);
             setProgress();
             drawImg();
       }
     };
     instance.goto = function(n) {
         instance.process = n;
+        drawImg();
     };
     instance.next = function() {
         var n = instance.process + 1 >= instance.framesLenth ? 0 : instance.process + 1;
@@ -286,21 +301,27 @@ function CanvasKeyFrames(el, imgs, mode, params) {
         instance.process = instance.start;
         instance.play();
     };
-    instance.repeatloop = function (obj) {
-        if ( obj === void 0 ) obj = {};
+    instance.repeatloop = function (params) {
+        if ( params === void 0 ) params = {};
 
         instance.repeat = true;
-        instance.fromTo(obj);
+        instance.fromTo(params);
     };
     instance.pause = function() {
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         instance.ispause = true;
         instance.state = 'stop';
+        drawImg();
     };
     instance.stop = function() {
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         instance.begin = false;
         instance.state = 'stop';
         instance.ispause = true;
         instance.process = 0;
+        drawImg();
     };
     instance.play = function() {
         if (!instance.ispause) { return; }
@@ -312,6 +333,9 @@ function CanvasKeyFrames(el, imgs, mode, params) {
         instance.ctx = null;
         instance.canvas.remove();
         instance.canvas = null;
+        instance.ispause = true;
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         for (var key in instance){
             delete instance[key];
         }
diff --git a/lib/canvas-keyframes.js b/lib/canvas-keyframes.js
index f5de0f5..2b91d33 100644
--- a/lib/canvas-keyframes.js
+++ b/lib/canvas-keyframes.js
@@ -7,7 +7,6 @@
 'use strict';
 
 // Defaults
-
 var defaultSettings = {
     el: null,
     mode: 'array',
@@ -188,19 +187,28 @@ function CanvasKeyFrames(el, imgs, mode, params) {
     }
     function countIteration() {
         if (instance.remaining) {
-          instance.remaining--;
+            instance.remaining--;
         }
     }
+    function resetTime() {
+        now = 0;
+        then = Date.now();
+        delta = 0;
+    }
     function setProgress() {
         if (!instance.begin) {
-            console.log(instance.begin);
             instance.begin = true;
             instance.ispause = false;
-            instance.process = instance.start - 1;
+            console.log(instance.process, 'aaa', instance.start);
+            instance.process = instance.direction === 'normal' ? instance.start - 1 : instance.start + 1;
+            console.log('动态',instance.process);
         }
+        console.log('???????????');
         countIteration();
         if (!instance.remaining) {
+            instance.ispause = true;
             if (!instance.completed) {
+              instance.completed = true;
               if (instance.repeat) {
                 instance.repeatDirec = !instance.repeatDirec;
                 if (instance.repeatDirec) {
@@ -217,7 +225,6 @@ function CanvasKeyFrames(el, imgs, mode, params) {
                     instance.direction = instance.direction === 'alternate' ? 'normal' : 'alternate';
                 }
               }
-              instance.completed = true;
               setCallback('complete');
             }
             if (instance.loop) {
@@ -234,6 +241,11 @@ function CanvasKeyFrames(el, imgs, mode, params) {
                     instance.process = instance.start;
                 }
             } else {
+                if (instance.direction === 'normal') {
+                    instance.process = instance.process >= instance.end ? instance.start : instance.process + 1;
+                } else {
+                    instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
+                }
                 instance.pause();
             }
         } else {
@@ -243,18 +255,21 @@ function CanvasKeyFrames(el, imgs, mode, params) {
                 instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
             }
         }
+        console.log('打印instance.process=>', instance.process);
     }
     instance.tick = function(t) {
         now = Date.now();
       delta = now - then;
-      if (delta > interval) {
+      if (delta > interval && !instance.ispause) {
         then = now - (delta % interval);
+            console.log('enter', instance.process);
             setProgress();
             drawImg();
       }
     };
     instance.goto = function(n) {
         instance.process = n;
+        drawImg();
     };
     instance.next = function() {
         var n = instance.process + 1 >= instance.framesLenth ? 0 : instance.process + 1;
@@ -288,21 +303,27 @@ function CanvasKeyFrames(el, imgs, mode, params) {
         instance.process = instance.start;
         instance.play();
     };
-    instance.repeatloop = function (obj) {
-        if ( obj === void 0 ) obj = {};
+    instance.repeatloop = function (params) {
+        if ( params === void 0 ) params = {};
 
         instance.repeat = true;
-        instance.fromTo(obj);
+        instance.fromTo(params);
     };
     instance.pause = function() {
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         instance.ispause = true;
         instance.state = 'stop';
+        drawImg();
     };
     instance.stop = function() {
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         instance.begin = false;
         instance.state = 'stop';
         instance.ispause = true;
         instance.process = 0;
+        drawImg();
     };
     instance.play = function() {
         if (!instance.ispause) { return; }
@@ -314,6 +335,9 @@ function CanvasKeyFrames(el, imgs, mode, params) {
         instance.ctx = null;
         instance.canvas.remove();
         instance.canvas = null;
+        instance.ispause = true;
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         for (var key in instance){
             delete instance[key];
         }
diff --git a/lib/canvas-keyframes.min.js b/lib/canvas-keyframes.min.js
index 969b1c6..516bb49 100644
--- a/lib/canvas-keyframes.min.js
+++ b/lib/canvas-keyframes.min.js
@@ -4,4 +4,4 @@
  * Released under the MIT license
  */
 
-!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.CanvasKeyFrames=t()}(this,function(){"use strict";var r={el:null,mode:"array",direction:"normal",fps:30,imgs:null,loop:!0,autoplay:!1,cover:0,process:0,framesLenth:0,ispause:!0,state:"stop",start:0,end:0,remaining:0,completed:!1,update:null,begin:null,complete:null,repeat:!1,repeatDirec:!0},i={arr:function(e){return Array.isArray(e)},obj:function(e){return stringContains(Object.prototype.toString.call(e),"Object")},pth:function(e){return i.obj(e)&&e.hasOwnProperty("totalLength")},svg:function(e){return e instanceof SVGElement},inp:function(e){return e instanceof HTMLInputElement},dom:function(e){return e.nodeType||i.svg(e)},str:function(e){return"string"==typeof e},fnc:function(e){return"function"==typeof e},und:function(e){return void 0===e},hex:function(e){return/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(e)},rgb:function(e){return/^rgb/.test(e)},hsl:function(e){return/^hsl/.test(e)},col:function(e){return i.hex(e)||i.rgb(e)||i.hsl(e)},key:function(e){return!defaultInstanceSettings.hasOwnProperty(e)&&!defaultTweenSettings.hasOwnProperty(e)&&"targets"!==e&&"keyframes"!==e}};function o(e){var t={};for(var n in e)t[n]=e[n];return t}var d,a=0;function h(e){var t=function(e,t){var n=o(e);for(var r in e)n[r]=t.hasOwnProperty(r)?t[r]:e[r];return n}(r,e),n=a;return a++,function(e,t){var n=o(e);for(var r in t)n[r]=i.und(e[r])?t[r]:e[r];return n}(t,{id:n})}var m=null,g=function(){function t(){d=requestAnimationFrame(e)}function e(e){m.ispause?d=cancelAnimationFrame(d):(m.tick(e),t())}return t}();function e(e,t,n,r){if(void 0===r&&(r={}),!e||!t)throw new Error("el和imgs是必填参数");if("array"!==n&&"sprite"!==n)throw new Error('只支持"array"和"sprite"模式');var i=0,o=Date.now(),a=0;"array"===n?r.framesLenth=t.length:(r.spriteArray=function(e,t){void 0===e&&(e={}),void 0===t&&(t={});for(var n=e.width,r=e.height,i=t.w,o=t.h,a=n/i,s=r/o,c=[],u=0;u<s;u++)for(var p=0;p<a;p++)c.push({x:i*p,y:o*u});return c}({width:t.width,width:t.height},{w:r._iw,h:r._ih}),r.framesLenth=r.spriteArray.length),r.el=e,r.mode=n,r.imgs=t,r.start=0,r.end=r.framesLenth-1,r.remaining=r.framesLenth;var s=h(r),c=1e3/s.fps;!function(e){var t=document.createElement("canvas");t.width=e.width*window.devicePixelRatio||e.el.clientWidth,t.height=e.height*window.devicePixelRatio||e.el.clientHeight,t.style.display="block",t.style.width="100%",t.style.height="100%",e.ctx=t.getContext("2d"),e.el.appendChild(t),e.canvas=t}(s);var u,p;u=s,p=window.Promise&&new Promise(function(e){return e}),u.finished=p;function f(){var e=s.process;if(s.ctx.clearRect(0,0,s.canvas.width,s.canvas.height),"array"===s.mode)0!==s.imgs[e].width&&s.ctx.drawImage(s.imgs[e],0,0,s.canvas.width,s.canvas.height);else{if("sprite"!==s.mode)throw new Error("没有匹配的模式");if(s.options.framesCount)s.ctx.drawImage(s.imgs,s.spriteArray[e].x,s.spriteArray[e].y,s._iw,s._ih,0,0,s.canvas.width,s.canvas.height);else{var t=s.imgs.width/s.imgsLen;s.ctx.drawImage(s.imgs,t*e,0,t,s.imgs.height,0,0,s.canvas.width,s.canvas.height)}}}function l(){if(s.begin||(console.log(s.begin),s.begin=!0,s.ispause=!1,s.process=s.start-1),s.remaining&&s.remaining--,s.remaining)"normal"===s.direction?s.process=s.process>=s.end?s.start:s.process+1:s.process=s.process<=0?s.start:s.process-1;else{if(!s.completed){if(s.repeat)if(s.repeatDirec=!s.repeatDirec,s.repeatDirec){if(s.direction="normal"===s.direction?"alternate":"normal","normal"===s.direction){var e=s.start,t=s.end;t<e&&(s.start=t,s.end=e)}}else s.direction="alternate"===s.direction?"normal":"alternate";s.completed=!0,function(e){s[e]&&s[e](s)}("complete")}s.loop?(s.completed=!1,s.remaining=Math.abs(s.end-s.start)+1,s.repeat?s.repeatDirec?s.process=s.start:s.process=s.end:s.process=s.start):s.pause()}}return s.tick=function(e){i=Date.now(),c<(a=i-o)&&(o=i-a%c,l(),f())},s.goto=function(e){s.process=e},s.next=function(){var e=s.process+1>=s.framesLenth?0:s.process+1;s.goto(e)},s.prev=function(){var e=s.process-1<=0?s.framesLenth-1:s.process-1;s.goto(e)},s.fromTo=function(e){void 0===e&&(e={});var t=e.from,n=e.to,r=e.loop,i=e.complete;s.loop=r,s.complete=i,t<=n?(s.direction="normal",s.repeatDirec=!0,s.start=-1<t?t:0,s.end=n<s.framesLenth?n:s.framesLenth-1):(s.direction="alternate",s.repeatDirec=!1,s.start=t<s.framesLenth?t:s.framesLenth-1,s.end=-1<n?n:0),s.remaining=Math.abs(s.end-s.start)+1,s.process=s.start,s.play()},s.repeatloop=function(e){void 0===e&&(e={}),s.repeat=!0,s.fromTo(e)},s.pause=function(){s.ispause=!0,s.state="stop"},s.stop=function(){s.begin=!1,s.state="stop",s.ispause=!0,s.process=0},s.play=function(){s.ispause&&(s.ispause=!1,m=s,d||g())},s.destroy=function(){for(var e in s.ctx=null,s.canvas.remove(),s.canvas=null,s)delete s[e]},f(),s.autoplay&&s.play(),s}return e.version="1.0.0",e.random=function(e,t){return Math.floor(Math.random()*(t-e+1))+e},e});
\ No newline at end of file
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):e.CanvasKeyFrames=t()}(this,function(){"use strict";var r={el:null,mode:"array",direction:"normal",fps:30,imgs:null,loop:!0,autoplay:!1,cover:0,process:0,framesLenth:0,ispause:!0,state:"stop",start:0,end:0,remaining:0,completed:!1,update:null,begin:null,complete:null,repeat:!1,repeatDirec:!0},o={arr:function(e){return Array.isArray(e)},obj:function(e){return stringContains(Object.prototype.toString.call(e),"Object")},pth:function(e){return o.obj(e)&&e.hasOwnProperty("totalLength")},svg:function(e){return e instanceof SVGElement},inp:function(e){return e instanceof HTMLInputElement},dom:function(e){return e.nodeType||o.svg(e)},str:function(e){return"string"==typeof e},fnc:function(e){return"function"==typeof e},und:function(e){return void 0===e},hex:function(e){return/(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(e)},rgb:function(e){return/^rgb/.test(e)},hsl:function(e){return/^hsl/.test(e)},col:function(e){return o.hex(e)||o.rgb(e)||o.hsl(e)},key:function(e){return!defaultInstanceSettings.hasOwnProperty(e)&&!defaultTweenSettings.hasOwnProperty(e)&&"targets"!==e&&"keyframes"!==e}};function i(e){var t={};for(var n in e)t[n]=e[n];return t}var m,a=0;function h(e){var t=function(e,t){var n=i(e);for(var r in e)n[r]=t.hasOwnProperty(r)?t[r]:e[r];return n}(r,e),n=a;return a++,function(e,t){var n=i(e);for(var r in t)n[r]=o.und(e[r])?t[r]:e[r];return n}(t,{id:n})}var g=null,v=function(){function t(){m=requestAnimationFrame(e)}function e(e){g.ispause?m=cancelAnimationFrame(m):(g.tick(e),t())}return t}();function e(e,t,n,r){if(void 0===r&&(r={}),!e||!t)throw new Error("el和imgs是必填参数");if("array"!==n&&"sprite"!==n)throw new Error('只支持"array"和"sprite"模式');var o=0,i=Date.now(),a=0;"array"===n?r.framesLenth=t.length:(r.spriteArray=function(e,t){void 0===e&&(e={}),void 0===t&&(t={});for(var n=e.width,r=e.height,o=t.w,i=t.h,a=n/o,s=r/i,c=[],p=0;p<s;p++)for(var u=0;u<a;u++)c.push({x:o*u,y:i*p});return c}({width:t.width,width:t.height},{w:r._iw,h:r._ih}),r.framesLenth=r.spriteArray.length),r.el=e,r.mode=n,r.imgs=t,r.start=0,r.end=r.framesLenth-1,r.remaining=r.framesLenth;var s=h(r),c=1e3/s.fps;!function(e){var t=document.createElement("canvas");t.width=e.width*window.devicePixelRatio||e.el.clientWidth,t.height=e.height*window.devicePixelRatio||e.el.clientHeight,t.style.display="block",t.style.width="100%",t.style.height="100%",e.ctx=t.getContext("2d"),e.el.appendChild(t),e.canvas=t}(s);var p,u;p=s,u=window.Promise&&new Promise(function(e){return e}),p.finished=u;function l(){var e=s.process;if(s.ctx.clearRect(0,0,s.canvas.width,s.canvas.height),"array"===s.mode)0!==s.imgs[e].width&&s.ctx.drawImage(s.imgs[e],0,0,s.canvas.width,s.canvas.height);else{if("sprite"!==s.mode)throw new Error("没有匹配的模式");if(s.options.framesCount)s.ctx.drawImage(s.imgs,s.spriteArray[e].x,s.spriteArray[e].y,s._iw,s._ih,0,0,s.canvas.width,s.canvas.height);else{var t=s.imgs.width/s.imgsLen;s.ctx.drawImage(s.imgs,t*e,0,t,s.imgs.height,0,0,s.canvas.width,s.canvas.height)}}}function f(){o=0,i=Date.now(),a=0}function d(){if(s.begin||(s.begin=!0,s.ispause=!1,console.log(s.process,"aaa",s.start),s.process="normal"===s.direction?s.start-1:s.start+1,console.log("动态",s.process)),console.log("???????????"),s.remaining&&s.remaining--,s.remaining)"normal"===s.direction?s.process=s.process>=s.end?s.start:s.process+1:s.process=s.process<=0?s.start:s.process-1;else{if(s.ispause=!0,!s.completed){if(s.completed=!0,s.repeat)if(s.repeatDirec=!s.repeatDirec,s.repeatDirec){if(s.direction="normal"===s.direction?"alternate":"normal","normal"===s.direction){var e=s.start,t=s.end;t<e&&(s.start=t,s.end=e)}}else s.direction="alternate"===s.direction?"normal":"alternate";!function(e){s[e]&&s[e](s)}("complete")}s.loop?(s.completed=!1,s.remaining=Math.abs(s.end-s.start)+1,s.repeat?s.repeatDirec?s.process=s.start:s.process=s.end:s.process=s.start):("normal"===s.direction?s.process=s.process>=s.end?s.start:s.process+1:s.process=s.process<=0?s.start:s.process-1,s.pause())}console.log("打印instance.process=>",s.process)}return s.tick=function(e){o=Date.now(),c<(a=o-i)&&!s.ispause&&(i=o-a%c,console.log("enter",s.process),d(),l())},s.goto=function(e){s.process=e,l()},s.next=function(){var e=s.process+1>=s.framesLenth?0:s.process+1;s.goto(e)},s.prev=function(){var e=s.process-1<=0?s.framesLenth-1:s.process-1;s.goto(e)},s.fromTo=function(e){void 0===e&&(e={});var t=e.from,n=e.to,r=e.loop,o=e.complete;s.loop=r,s.complete=o,t<=n?(s.direction="normal",s.repeatDirec=!0,s.start=-1<t?t:0,s.end=n<s.framesLenth?n:s.framesLenth-1):(s.direction="alternate",s.repeatDirec=!1,s.start=t<s.framesLenth?t:s.framesLenth-1,s.end=-1<n?n:0),s.remaining=Math.abs(s.end-s.start)+1,s.process=s.start,s.play()},s.repeatloop=function(e){void 0===e&&(e={}),s.repeat=!0,s.fromTo(e)},s.pause=function(){m=cancelAnimationFrame(m),f(),s.ispause=!0,s.state="stop",l()},s.stop=function(){m=cancelAnimationFrame(m),f(),s.begin=!1,s.state="stop",s.ispause=!0,s.process=0,l()},s.play=function(){s.ispause&&(s.ispause=!1,g=s,m||v())},s.destroy=function(){for(var e in s.ctx=null,s.canvas.remove(),s.canvas=null,s.ispause=!0,m=cancelAnimationFrame(m),f(),s)delete s[e]},l(),s.autoplay&&s.play(),s}return e.version="1.0.0",e.random=function(e,t){return Math.floor(Math.random()*(t-e+1))+e},e});
\ No newline at end of file
diff --git a/src/index.js b/src/index.js
index 8b3effc..897b340 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,5 +1,4 @@
 // Defaults
-
 const defaultSettings = {
     el: null,
     mode: 'array',
@@ -145,13 +144,6 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
     createCanvas(instance);
 
     let promise = makePromise(instance);
-    function toggleDirection() {
-        const direction = instance.direction;
-        if (direction !== 'alternate'){
-            instance.direction = direction !== 'normal' ? 'normal' : 'reverse';
-        }
-        instance.reversed = !instance.reversed;
-    }
     function drawImg() {
         let n = instance.process;
         instance.ctx.clearRect(0, 0, instance.canvas.width, instance.canvas.height);
@@ -180,19 +172,28 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
     }
     function countIteration() {
         if (instance.remaining) {
-          instance.remaining--;
+            instance.remaining--;
         }
     }
+    function resetTime() {
+        now = 0;
+        then = Date.now();
+        delta = 0;
+    }
     function setProgress() {
         if (!instance.begin) {
-            console.log(instance.begin);
             instance.begin = true;
             instance.ispause = false;
-            instance.process = instance.start - 1;
+            console.log(instance.process, 'aaa', instance.start)
+            instance.process = instance.direction === 'normal' ? instance.start - 1 : instance.start + 1;
+            console.log('动态',instance.process)
         }
+        console.log('???????????')
         countIteration();
         if (!instance.remaining) {
+            instance.ispause = true;
             if (!instance.completed) {
+              instance.completed = true;
               if (instance.repeat) {
                 instance.repeatDirec = !instance.repeatDirec;
                 if (instance.repeatDirec) {
@@ -208,7 +209,6 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
                     instance.direction = instance.direction === 'alternate' ? 'normal' : 'alternate'
                 }
               }
-              instance.completed = true;
               setCallback('complete');
             }
             if (instance.loop) {
@@ -225,6 +225,11 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
                     instance.process = instance.start;
                 }
             } else {
+                if (instance.direction === 'normal') {
+                    instance.process = instance.process >= instance.end ? instance.start : instance.process + 1
+                } else {
+                    instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
+                }
                 instance.pause();
             }
         } else {
@@ -234,12 +239,14 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
                 instance.process = instance.process <= 0 ? instance.start : instance.process - 1;
             }
         }
+        console.log('打印instance.process=>', instance.process)
     }
     instance.tick = function(t) {
         now = Date.now();
       delta = now - then;
-      if (delta > interval) {
+      if (delta > interval && !instance.ispause) {
         then = now - (delta % interval);
+            console.log('enter', instance.process)
             setProgress();
             drawImg();
       }
@@ -280,14 +287,20 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
         instance.fromTo(params);
     }
     instance.pause = function() {
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         instance.ispause = true;
         instance.state = 'stop';
+        drawImg();
     }
     instance.stop = function() {
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         instance.begin = false;
         instance.state = 'stop';
         instance.ispause = true;
         instance.process = 0;
+        drawImg();
     }
     instance.play = function() {
         if (!instance.ispause) return;
@@ -299,6 +312,9 @@ function CanvasKeyFrames(el, imgs, mode, params = {}) {
         instance.ctx = null;
         instance.canvas.remove();
         instance.canvas = null;
+        instance.ispause = true;
+        raf = cancelAnimationFrame(raf);
+        resetTime();
         for (let key in instance){
             delete instance[key];
         }

From 3854fff930cec36892b84710203e88ad1a022a4d Mon Sep 17 00:00:00 2001
From: "kevin.yang" <kevin.yang@all-dream.com>
Date: Mon, 5 Aug 2019 13:25:07 +0800
Subject: [PATCH 3/3] update

---
 build.js                    | 2 +-
 lib/canvas-keyframes.es.js  | 2 +-
 lib/canvas-keyframes.js     | 2 +-
 lib/canvas-keyframes.min.js | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/build.js b/build.js
index 5ccabae..901b22e 100644
--- a/build.js
+++ b/build.js
@@ -9,7 +9,7 @@ const umd = pkg['umd:main'];
 const date = new Date();
 
 const banner = `/*
- * anime.js v${ pkg.version }
+ * canvas-keyframes.js v${ pkg.version }
  * (c) ${ date.getFullYear() } wenyi
  * Released under the MIT license
  */
diff --git a/lib/canvas-keyframes.es.js b/lib/canvas-keyframes.es.js
index 8312c39..54256b4 100644
--- a/lib/canvas-keyframes.es.js
+++ b/lib/canvas-keyframes.es.js
@@ -1,5 +1,5 @@
 /*
- * anime.js v1.0.0
+ * canvas-keyframes.js v1.0.0
  * (c) 2019 wenyi
  * Released under the MIT license
  */
diff --git a/lib/canvas-keyframes.js b/lib/canvas-keyframes.js
index 2b91d33..c4adb22 100644
--- a/lib/canvas-keyframes.js
+++ b/lib/canvas-keyframes.js
@@ -1,5 +1,5 @@
 /*
- * anime.js v1.0.0
+ * canvas-keyframes.js v1.0.0
  * (c) 2019 wenyi
  * Released under the MIT license
  */
diff --git a/lib/canvas-keyframes.min.js b/lib/canvas-keyframes.min.js
index 516bb49..e33f0f0 100644
--- a/lib/canvas-keyframes.min.js
+++ b/lib/canvas-keyframes.min.js
@@ -1,5 +1,5 @@
 /*
- * anime.js v1.0.0
+ * canvas-keyframes.js v1.0.0
  * (c) 2019 wenyi
  * Released under the MIT license
  */