createjs实现烟花绽放动画效果-html代码-BFW代码库

createjs实现烟花绽放动画效果

代码语言：html

所属分类：粒子

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<title> - Star fireworks spike</title>
<style>
  body {
  background: #000;
  margin: 0;
  overflow: hidden;
}
#target {
	background: #222;
	display: block;
}
#logo { 
	position: absolute;
	bottom: 1%;
	right: 1%;
}
</style>

</head>
<body translate="no">
<canvas id="target" width="1280" height="720"></canvas>

<script type="text/javascript" src="http://repo.bfw.wiki/bfwrepo/js/createjs.min.js"></script>
<script>
   var c = createjs, stage = new c.Stage("target"), t=0;
var w = stage.canvas.width, h=stage.canvas.height
var colors=["red", "green", "blue","orange","purple"], r=16, rows=5, cols=8;
var grid, nextT=0, frame=-1, particles;

init();
function init() {
	grid = buildGrid();
	var clear = stage.addChild(new c.Shape());
	clear.graphics.f("rgba(0,0,0,0.05)").dr(0,0,w,h);
	particles = stage.addChild(new c.Container());
	stage.autoClear = false;
	c.Ticker.timingMode = c.Ticker.RAF;
	c.Ticker.on("tick", tick);
}

function tick(evt) {
	t += evt.delta;
	if (t > nextT) {
		frame = (frame+1)%cols;
		drawFrame(grid[frame]);
		nextT = t+200;
	}
	update(evt.delta/16);
}

function update(m) {
	var parts = particles.children;
	for (var i=parts.length-1; i>=0; i--) {
		var p = parts[i];
		if (p.alpha < 1) { p.alpha += 0.01; }
		p.x +.........完整代码请登录后点击上方下载按钮下载查看