js实现新年倒计时点击放烟花快乐代码
代码语言:html
所属分类:其他
代码描述:js实现新年倒计时点击放烟花快乐代码
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>
@import url("https://fonts.googleapis.com/css?family=Caveat");
</style>
<style>
html, body {
margin: 0;
padding: 0;
overflow: hidden;
background: #000;
background-image: url(//repo.bfw.wiki/bfwrepo/image/604a26e01dd36.png) ;
background-repeat: no-repeat;
background-size: cover;
}
canvas {
mix-blend-mode: lighten;
cursor: pointer;
}
#hero {
display: inline;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
mix-blend-mode: color-dodge;
}
#year {
font-size: 30vw;
color: #d0d0d0;
font-weight: bold;
}
#timeleft {
color: #fbfbfb;
font-size: 2.5vw;
text-align: center;
}
</style>
</head>
<body>
<div id="hero">
<div id="year">2022</div>
<div id="timeleft"></div>
</div>
<script>
var vector = {
_x: 1,
_y: 0,
create: function(x, y) {
var obj = Object.create(this);
obj.setX(x);
obj.setY(y);
return obj;
},
duplicate: function() {
return vector.create(this._x, this._y);
},
random: function(maxX, maxY, minX, minY){
var x = Math.random() * (maxX-minX) + minX;
var y = Math.random() * (maxY-minY) + minY;
return vector.create(x,y);
},
setX: function(value) {
this._x = value;
},
getX: function() {
return this._x;
},
setY: function(value) {
this._y = value;
},
getY: function() {
return this._y;
},
bounds: function(size, mX, mY){
var mapsize = size;
if(this._x > mX + mapsize){ this._x = -size; }
if(this._x < -mapsize){ this._x = mX + size; }
if(this._y > mY + mapsize){ this._y = -size; }
if(this._y < -mapsize){ this._y = mY + size; }
},
outOfBounds: function(sx, sy, ex, ey){
if(this._x < sx){ return true; }
if(this._x > ex){ return true; }
if(this._y < sy){ return true; }
if(this._y > ey){ return true; }
},
setAngle: function(angle) {
var length = this.getLength();
this._x = Math.cos(angle) * length;
this._y = Math.sin(angle) * length;
},
getAngle: function() {
return Math.atan2(this._y, this._x);
},
angleTo: function(p2) {
return Math.atan2(p2.getY() - this._y, p2.getX() - this._x);
},
distanceTo: function(p2) {
var dx = p2.getX() - this._x,
dy = p2.getY() - this._y;
return Math.sqrt(dx * dx + dy * dy);
},
setLength: function(length) {
var angle = this.getAngle();
this._x = Math.cos(angle) * length;
this._y = Math.sin(angle) * length;
},
gravitateTo: function(p2, mass, mymass) {
var grav = Vector.create(0, 0),
dist = mypos.distanceTo(p2);
//grav.setLength(mass / (dist * dist));
grav.setLength((G*mass*mymass) / (dist * dist));
grav.setAngle(this.angleTo(p2));
this.addTo(grav);
},
getLength: function() {
return Math.sqrt(this._x * this._x + this._y * this._y);
},
maxSpeed: function(s){
if(this.getLength() > s){
this.setLength(s);
}
},
add: function(v2) {
return vector.create(this._x + v2.getX(), this._y + v2.getY());
},
subtract: function(v2) {
return vector.create(this._x - v2.getX(), this._y - v2.getY());
},
multiply: function(val) {
return vector.create(this._x * val, this._y * val);
},
divide: function(val) {
return vector.create(this._x / val, this._y / val);
},
addTo: function(v2) {
this._x += v2.getX();
this._y += v2.getY();
},
subtractFrom: function(v2) {
this._x -= v2.getX();
this._y -= v2.getY();
.........完整代码请登录后点击上方下载按钮下载查看
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