粒子风暴代码

2022-03-24 16:44:55 浏览数 (1)

视屏:

http://mpvideo.qpic.cn/0bf2zmaaoaaavqai4xq3l5pvbs6da7fqabya.f10002.mp4?dis_k=0e7c7dd616e57e0b6fbe60c589608f1c&dis_t=1648111226&vid=wxv_1443644140037963780&format_id=10002&support_redirect=0&mmversion=false

软件:Dreamweaver

语言:HTML

用HTML代码写的小游戏,一起感受一下吧!

以下是代码复制粘贴便好。

<!html>

<head>

<style>

html,body {

width: 100%;

height: 100%;

margin: 0;

padding: 0;

overflow: hidden;

}

.container{

width: 100ге;

height: 100%;

margin: 0;

padding: 0;

background-color: #000000;

}

</style>

<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/1.6.4/jquery.js"></script>

<script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>

<script>

var RENDERER = {

PARTICLE_COUNT : 700,

PARTICLE_RADIUS : 1,

MAX_ROTATION_ANGLE : Math.PI / 60,

TRANSLATION_COUNT : 500,

init : function(strategy){

this.setParameters(strategy);

this.createParticles();

this.setupFigure();

this.reconstructMethod();

this.bindEvent();

this.drawFigure();

},

setParameters : function(strategy){

this.window = (window);

this.container = ('#jsi-particle-container');

this.width = this.$container.width();

this.height = this.$container.height();

this.canvas = ('<canvas />').attr({width : this.width, height : this.height}).appendTo(this.

this.context = this.$canvas.get(0).getContext('2d');

this.center = {x : this.width / 2, y : this.height / 2};

this.rotationX = this.MAX_ROTATION_ANGLE;

this.rotationY = this.MAX_ROTATION_ANGLE;

this.strategyIndex = 0;

this.translationCount = 0;

this.theta = 0;

this.strategies = strategy.getStrategies();

this.particles = [];

},

createParticles : function(){

for(var i = 0; i < this.PARTICLE_COUNT; i ){

this.particles.push(new PARTICLE(this.center));

}

},

reconstructMethod : function(){

this.setupFigure = this.setupFigure.bind(this);

this.drawFigure = this.drawFigure.bind(this);

this.changeAngle = this.changeAngle.bind(this);

},

bindEvent : function(){

this.$container.on("click", this.setupFigure);

this.$container.on('mousemove', this.changeAngle);

},

changeAngle : function(event){

var offset = this.$container.offset(),

x = event.clientX - offset.left this.$window.scrollLeft(),

y = event.clientY - offset.top this.$window.scrollTop();

this.rotationX = (this.center.y - y) / this.center.y * this.MAX_ROTATION_ANGLE;

this.rotationY = (this.center.x - x) / this.center.x * this.MAX_ROTATION_ANGLE;

},

setupFigure : function(){

for(var i = 0, length = this.particles.length; i < length; i ){

this.particles[i].setAxis(this.strategies[this.strategyIndex]());

}

if( this.strategyIndex == this.strategies.length){

this.strategyIndex = 0;

}

this.translationCount = 0;

},

drawFigure : function(){

requestAnimationFrame(this.drawFigure);

this.context.fillStyle = 'rgba(0, 0, 0, 0.2)';

this.context.fillRect(0, 0, this.width, this.height);

for(var i = 0, length = this.particles.length; i < length; i ){

var axis = this.particles[i].getAxis2D(this.theta);

this.context.beginPath();

this.context.fillStyle = axis.color;

this.context.arc(axis.x, axis.y, this.PARTICLE_RADIUS, 0, Math.PI * 2, false);

this.context.fill();

}

this.theta ;

this.theta %= 360;

for(var i = 0, length = this.particles.length; i < length; i ){

this.particles[i].rotateX(this.rotationX);

this.particles[i].rotateY(this.rotationY);

}

this.translationCount ;

this.translationCount %= this.TRANSLATION_COUNT;

if(this.translationCount == 0){

this.setupFigure();

}

}

};

var STRATEGY = {

SCATTER_RADIUS :150,

CONE_ASPECT_RATIO : 1.5,

RING_COUNT : 5,

getStrategies : function(){

var strategies = [];

for(var i in this){

if(this[i] == arguments.callee || typeof this[i] != 'function'){

continue;

}

strategies.push(this[i].bind(this));

}

return strategies;

},

createSphere : function(){

var cosTheta = Math.random() * 2 - 1,

sinTheta = Math.sqrt(1 - cosTheta * cosTheta),

phi = Math.random() * 2 * Math.PI;

return {

x : this.SCATTER_RADIUS * sinTheta * Math.cos(phi),

y : this.SCATTER_RADIUS * sinTheta * Math.sin(phi),

z : this.SCATTER_RADIUS * cosTheta,

hue : Math.round(phi / Math.PI * 30)

};

},

createTorus : function(){

var theta = Math.random() * Math.PI * 2,

x = this.SCATTER_RADIUS this.SCATTER_RADIUS / 6 * Math.cos(theta),

y = this.SCATTER_RADIUS / 6 * Math.sin(theta),

phi = Math.random() * Math.PI * 2;

return {

x : x * Math.cos(phi),

y : y,

z : x * Math.sin(phi),

hue : Math.round(phi / Math.PI * 30)

};

},

createCone : function(){

var status = Math.random() > 1 / 3,

x,

y,

phi = Math.random() * Math.PI * 2,

rate = Math.tan(30 / 180 * Math.PI) / this.CONE_ASPECT_RATIO;

if(status){

y = this.SCATTER_RADIUS * (1 - Math.random() * 2);

x = (this.SCATTER_RADIUS - y) * rate;

}else{

y = -this.SCATTER_RADIUS;

x = this.SCATTER_RADIUS * 2 * rate * Math.random();

}

return {

x : x * Math.cos(phi),

y : y,

z : x * Math.sin(phi),

hue : Math.round(phi / Math.PI * 30)

};

},

createVase : function(){

var theta = Math.random() * Math.PI,

x = Math.abs(this.SCATTER_RADIUS * Math.cos(theta) / 2) this.SCATTER_RADIUS / 8,

y = this.SCATTER_RADIUS * Math.cos(theta) * 1.2,

phi = Math.random() * Math.PI * 2;

return {

x : x * Math.cos(phi),

y : y,

z : x * Math.sin(phi),

hue : Math.round(phi / Math.PI * 30)

};

}

};

var PARTICLE = function(center){

this.center = center;

this.init();

};

PARTICLE.prototype = {

SPRING : 0.01,

FRICTION : 0.9,

FOCUS_POSITION : 300,

COLOR : 'hsl(%hue, 100%, 70%)',

init : function(){

this.x = 0;

this.y = 0;

this.z = 0;

this.vx = 0;

this.vy = 0;

this.vz = 0;

this.color;

},

setAxis : function(axis){

this.translating = true;

this.nextX = axis.x;

this.nextY = axis.y;

this.nextZ = axis.z;

this.hue = axis.hue;

},

rotateX : function(angle){

var sin = Math.sin(angle),

cos = Math.cos(angle),

nextY = this.nextY * cos - this.nextZ * sin,

nextZ = this.nextZ * cos this.nextY * sin,

y = this.y * cos - this.z * sin,

z = this.z * cos this.y * sin;

this.nextY = nextY;

this.nextZ = nextZ;

this.y = y;

this.z = z;

},

rotateY : function(angle){

var sin = Math.sin(angle),

cos = Math.cos(angle),

nextX = this.nextX * cos - this.nextZ * sin,

nextZ = this.nextZ * cos this.nextX * sin,

x = this.x * cos - this.z * sin,

z = this.z * cos this.x * sin;

this.nextX = nextX;

this.nextZ = nextZ;

this.x = x;

this.z = z;

},

rotateZ : function(angle){

var sin = Math.sin(angle),

cos = Math.cos(angle),

nextX = this.nextX * cos - this.nextY * sin,

nextY = this.nextY * cos this.nextX * sin,

x = this.x * cos - this.y * sin,

y = this.y * cos this.x * sin;

this.nextX = nextX;

this.nextY = nextY;

this.x = x;

this.y = y;

},

getAxis3D : function(){

this.vx = (this.nextX - this.x) * this.SPRING;

this.vy = (this.nextY - this.y) * this.SPRING;

this.vz = (this.nextZ - this.z) * this.SPRING;

this.vx *= this.FRICTION;

this.vy *= this.FRICTION;

this.vz *= this.FRICTION;

this.x = this.vx;

this.y = this.vy;

this.z = this.vz;

return {x : this.x, y : this.y, z : this.z};

},

getAxis2D : function(theta){

var axis = this.getAxis3D(),

scale = this.FOCUS_POSITION / (this.FOCUS_POSITION axis.z);

return {x : this.center.x axis.x * scale, y : this.center.y - axis.y * scale, color : this.COLOR.replace('%hue', this.hue theta)};

}

};

$(function(){

RENDERER.init(STRATEGY);

});

</script>

</head>

<body>

<div id="jsi-particle-container" class="container"></div>

</body>

</html>

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