CreateJS是基于HTML5开发的一套模块化的库和工具。
基于这些库，可以非常快捷地开发出基于HTML5的游戏、动画和交互应用。
CreateJS为CreateJS库，可以说是一款为HTML5游戏开发的引擎。
EaselJS
一个JavaScript库，使HTML5 Canvas标签变得更简单。
用于创建游戏，生成艺术作品，和处理其他高级图形化等有着很友好的体验。
上下左右绘制文字
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<script src="lib/easeljs-0.8.2.min.js"></script>
<script src="lib/tweenjs-0.6.2.min.js"></script>
<style>
*{
padding: 0;
margin: 0;
}
</style>
</head>
<body> <p>上下左右绘制文字</p>
<canvas id="game"></canvas> <script>
var canvas,
stage,
w = document.body.clientWidth,
h = document.body.clientHeight; function init() {
// 设置canvas属性
canvas = document.getElementById('game');
canvas.width = w;
canvas.height = h;
// 创建舞台
stage = new createjs.Stage(canvas); // 绘制居中文字
var text1 = new createjs.Text('Hello World', '20px Arial', '#ff4400'),
bounds = text1.getBounds(); text1.x = stage.canvas.width - bounds.width >> 1;
text1.y = stage.canvas.height - bounds.height >> 1; // 绘制左边的文字
var text2 = new createjs.Text('Hello World', '20px Arial', '#ff4400'); // 绘制右边的文字
var text3 = new createjs.Text('Hello World', '40px Arial', '#ff4400'),
bounds = text3.getBounds();
text3.x = w - bounds.width; // 下居中文字
var text4 = new createjs.Text('Hello World', '20px Arial', '#ff7700'),
bounds = text4.getBounds(); text4.x = stage.canvas.width - bounds.width >> 1;
text4.y = stage.canvas.height - bounds.height; stage.addChild(text1);
stage.addChild(text2);
stage.addChild(text3);
stage.addChild(text4);
stage.update(); } init(); </script> </body>
</html>
Bitmap绘制图片
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>绘制图片</title>
<script src="lib/easeljs-0.8.2.min.js"></script>
<script src="lib/tweenjs-0.6.2.min.js"></script>
<style>
*{
padding: 0;
margin: 0;
}
</style>
</head>
<body> <canvas id="game"></canvas> <script>
var cjs = createjs,
canvas,
stage,
container,
w = 200, // 图片就是200*200的大小
h = 200,
image; function init() {
// 设置canvas属性
canvas = document.getElementById('game');
canvas.width = w;
canvas.height = h; // 创建舞台
stage = new cjs.Stage(canvas);
// 绘制外部容器
container = new cjs.Container();
stage.addChild(container); // 加载图片
image = new Image();
image.src = 'icon.png';
image.onload = handleImageLoad;
} function handleImageLoad(event) {
var bitmap = new cjs.Bitmap(event.target);
bitmap.x = 0;
bitmap.y = 0;
bitmap.on('click', function () {
alert();
});
// 加入场景
container.addChild(bitmap);
stage.update();
} init(); </script> </body>
</html>
绘制点击提示，使用Tween
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>绘制点击提示，使用Tween</title>
<script src="lib/easeljs-0.8.2.min.js"></script>
<script src="lib/tweenjs-0.6.2.min.js"></script>
<style>
*{
padding: 0;
margin: 0;
}
body {
background: #000000;
}
</style>
</head>
<body> <canvas id="game"></canvas> <script>
var cjs = createjs,
canvas,
stage,
container,
w = window.innerWidth,
h = window.innerHeight,
s,
dt = ''; function init() {
canvas = document.getElementById('game');
canvas.width = w;
canvas.height = h;
// 创建舞台
stage = new cjs.Stage(canvas);
container = new cjs.Container(); // 绘制外部容器
stage.addChild(container); // 创建矩形
s = new DrawArc(10, '#fff');
s2 = new DrawArc(10, '#fff'); var bounds = s.getBounds(),
bounds2 = s2.getBounds(); s.x = w - bounds.width >> 1;
s.y = h - bounds.height >> 1;
s2.x = w -bounds2.width >> 1;
s2.y = h - bounds2.height >> 1;
s2.alpha = 0.6; s.on('click', function () {
alert('提示');
}); // 加入场景
container.addChild(s);
container.addChild(s2); // Tween
cjs.Tween.get(s, {loop: true})
.to({scaleX: 2.5, scaleY: 2.5, alpha: 0}, 1000, cjs.Ease.linear) // jump to the new scale properties (default duration of 0)
.to({scaleX: 1, scaleY: 1, alpha: 1}, 0, cjs.Ease.linear); // 设置游戏帧率
cjs.Ticker.setFPS(60);
cjs.Ticker.on('tick', stage);
} // 绘制矩形 类
function DrawArc(r, c) {
// 继承Shape类
cjs.Shape.call(this);
this.graphics.beginFill(c).arc(0,0,r,0,2*Math.PI);
// 设置矩形的边界属性，这样可以获得width和height属性
this.setBounds(0,0,r,r);
} DrawArc.prototype = new cjs.Shape(); // 获得原型方法 init(); </script> </body>
</html>
绘制笑脸
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>绘制笑脸</title>
<script src="lib/easeljs-0.8.2.min.js"></script>
<script src="lib/tweenjs-0.6.2.min.js"></script>
<style>
*{
padding: 0;
margin: 0;
}
</style>
</head>
<body> <canvas id="demoCanvas" width="1000" height="500">
alternate content
</canvas> <script> var stage = new createjs.Stage('demoCanvas'); // 绘制圆形
var circle = new createjs.Shape();
circle.graphics.beginFill('orange').drawCircle(0,0,100).endFill();
circle.x = 500;
circle.y = 240;
stage.addChild(circle); // 绘制眼睛
var eye = new createjs.Shape();
eye.graphics.beginFill('rgba(0,0,20,.5)').drawEllipse(0,0,20,40).endFill();
eye.x = 450;
eye.y = 180;
stage.addChild(eye); var eye2 = new createjs.Shape();
eye2.graphics = eye.graphics.clone();
eye2.x = 530;
eye2.y = 180;
stage.addChild(eye2); // 绘制鼻子
var nose = new createjs.Shape();
nose.graphics.beginFill('rgba(0,0,20,.5)').drawCircle(0,0,10).endFill();
nose.x = 500;
nose.y = 250;
stage.addChild(nose); // 绘制嘴巴
var mouth = new createjs.Shape();
mouth.graphics.ss(4).s('rgba(0,0,0,.5)').a(0,0,100,Math.PI*60/180,Math.PI*120/180);
mouth.x = 500;
mouth.y = 200;
stage.addChild(mouth); stage.update(); </script> </body>
</html>