canvas实现一个蜘蛛南瓜头燃烧动画效果代码
代码语言:html
所属分类:动画
代码描述:canvas实现一个蜘蛛南瓜头燃烧动画效果代码
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">
<style>
* {
margin: 0;
box-sizing: border-box;
overflow: hidden;
}
body {
background: #272829;
width: 100%;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
body canvas {
border: none;
outline: none;
}
</style>
</head>
<body>
<canvas id="canvas"></canvas>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/processing.min.js"></script>
<script>
var sketchProc = function(processingInstance) {
with (processingInstance) {
size(600, 600);
frameRate(60);
smooth();
var headColor = color(218, 89, 24, 210);
var outlineColor = color(159, 67, 20);
var mouthColor = color(244, 238, 43, 200);
var mouthShadowColor = color(224, 131, 45);
var eyeColor = color(244, 238, 43, 200);
var eyeShadowColor = color(148, 61, 10);
var stalkColor = color(28, 99, 10, 200);
var backgroundColor = color(39, 40, 41);
var webColor = color(255, 255, 255, 50);
var spiderColor = color(0);
var spiderStripeColor = color(201, 26, 26, 200);
var particleColor = color(230, 62, 28, 50);
var xOffset = -40;
var yOffset = 60;
var spiderYOffset = 0;
var yDir = 1;
//Particle object
var Particle = function(position, acceleration, timeToLive, c, size) {
this.acceleration = acceleration;
this.velocity = new PVector(random(-1, 1), random(-1, 1));
this.position = position.get();
this.timeToLive = timeToLive;
this.color = c;
this.size = size;
};
//Run the particle
Particle.prototype.run = function() {
this.update();
this.display();
};
//Update the particle
Particle.prototype.update = function() {
this.velocity.add(this.acceleration);
this.position.add(this.velocity);
this.timeToLive -= 2;
};
//Display the particle
Particle.prototype.display = function() {
noStroke();
fill(this.color);
ellipse(this.position.x, this.position.y, this.size, this.size);
};
//Check if the particle is dead
Particle.prototype.isDead = function() {
if (this.timeToLive < 0) {
return true;
}
else {
return false;
}
};
//Particle System object - manages the particles
var ParticleSystem = function(position, acceleration, c, size) {
this.origin = position.get();
this.acceleration = acceleration || new PVector(0, 0.08);
this.particles = [];
this.color = c || particleColor;
this.size = size || 15;
this.timeToLive = 60;
};
//Add a new particle
ParticleSystem.prototype.addParticle = function() {
this.particles.push(new Particle(this.origin, this.acceleration, this.timeToLive, this.color, this.size));
};
//Run each of the particles in the system, and remove it if it's dead
ParticleSystem.prototype.run = function() {
for(var i = this.particles.length-1; i >= 0; i--) {
var p = this.particles[i];
.........完整代码请登录后点击上方下载按钮下载查看
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