Cette fois, je vais vous présenter une analyse de cas de l'implémentation JS du code de confession 520. Quelles sont les précautions pour l'implémentation JS du code de confession 520. Ce qui suit est un cas pratique, jetons un coup d'œil.
Je ne sais pas ce qui s'est passé ces deux jours. J'étais confus et j'ai soudain réalisé qu'il était 520 aujourd'hui. J'ai rapidement exécuté un programme (débutant, le code est un peu compliqué) et je l'ai envoyé à tout le monde. étudier ensemble (référence à Baidu).
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>520</title>
<style>
html, body{padding:0px; margin:0px; background:#222; font-family: 'Karla', sans-serif; color:#FFF; height:100%; overflow:hidden;}
canvas {width:100%; height:100%;}
#text,#text_520{font-family:'楷体'; color:rgb(255,255,3); font-size:20px; position:fixed; left:10%; top:10%;}
#text_520{font-size:100px; top:50%; left:50%;}
img{position:fixed; top:0; left:0; width:100%;}
#last{font-size:12px; bottom:10px; left:50%; position:fixed;}
/*
@keyframes drop {
0% {
transform: translateY(-100px);
opacity: 0;
}
90% {
opacity: 1;
transform:translateY(10px);
}
100% {
transform:translateY(0px;)
}
}
*/
</style>
</head>
<body>
<canvas id="c"></canvas>
<p id="text"></p>
<p id="text_520">5 2 0</p>
<img src="./timg.jpg" class="img" />
<p id="last">版权所有：李晓珂</p>
<script type="text/javascript" src="./jquery-1.11.0.min.js"></script>
<script type="text/javascript">
function isIE(){
var u = navigator.userAgent;
if((u.indexOf("compatible") > -1 && u.indexOf("MSIE") > -1) || (u.indexOf("Trident") > -1 && u.indexOf("rv:11.0") > -1)){
alert("该浏览器暂不支持，请更换浏览器");
window.open('','_self');
window.close();
}
var audio = document.createElement("audio");
audio.setAttribute("src","./520-love.mp3");
audio.setAttribute("autoplay","autoplay");
}
isIE();
</script>
<script type="text/javascript">
var textArr = [
'I love three things in this world,',
'the sun ,the moon and you.',
'The sun for the day,',
'the moon for the night,',
'and you forever!',
'',
'If you were a teardrop,',
'in my eye,',
'for fear of losing you,',
'I would never cry.',
'And if the golden sun,',
'should cease to shine its light,',
'just one smile from you,',
'would make my whole world bright.'
];
var text_520 = document.getElementById('text_520');
var height = (window.innerHeight - text_520.offsetHeight) / 2;
var width = (window.innerWidth - text_520.offsetWidth) / 2;
text_520.style.top = height + 'px';
text_520.style.left = width + 'px';
$('#text_520').hide();
$('.img').hide();
var m = 0;
var n = 0;
var text = document.getElementById('text');
function typing(){
if(m <= textArr[n].length) {
text.innerHTML = text.innerHTML.substring(0,text.innerHTML.length-1) + textArr[n].substr(m++,1) + '_';
setTimeout(typing,250);
}else {
if(n < textArr.length-1){
text.innerHTML = text.innerHTML.substring(0,text.innerHTML.length-1) + "<br />_";
n++;
m = 0;
typing();
}else {
text.innerHTML = text.innerHTML.substring(0,text.innerHTML.length-1);
$('#text').fadeOut(5000);
setTimeout(function(){$('#text_520').fadeIn(5000);},7000);
setTimeout(function(){$('#text_520').fadeOut(5000); },7000);
setTimeout(function(){$('.img').fadeIn(50000);},15000)
}
}
}
setTimeout(typing,5000);
var ctx = document.querySelector('canvas').getContext('2d');
ctx.canvas.width = window.innerWidth;
ctx.canvas.height = window.innerHeight;
var sparks = [];
var fireworks = [];
var walker;
fireworks.pop();
var i = 10;
while(i--) fireworks.push(new Firework(Math.random()*window.innerWidth, window.innerHeight*Math.random()));
// setInterval(render, 1000/50);
render();
function render() {
setTimeout(render, 1000/50);
ctx.fillStyle = 'rgba(0, 0, 0, 0.2)';
ctx.fillRect(0, 0, ctx.canvas.width, ctx.canvas.height);
// 上升效果
for(var firework of fireworks) {
if(firework.dead) continue;
firework.move();
firework.draw();
}
// 绽放效果
for(var spark of sparks) {
if(spark.dead) continue;
spark.move();
spark.draw();
}
if(Math.random() < 0.1) fireworks.push(new Firework());
//ctx.height = ctx.height;
}
function Spark(x, y, color) {
this.x = x;
this.y = y;
this.dir = Math.random() * (Math.PI*2);
this.dead = false;
this.color = color;
this.speed = Math.random() * 3 + 3;
walker = new Walker({ radius: 20, speed: 0.25 });
this.gravity = 0.25;
this.dur = this.speed / 0.15;
this.move = function() {
this.dur--;
if(this.dur < 0) this.dead = true;
if(this.speed < 0) return;
if(this.speed > 0) this.speed -= 0.15;
walk = walker.step();
this.x += Math.cos(this.dir + walk) * this.speed;
this.y += Math.sin(this.dir + walk) * this.speed;
this.y += this.gravity;
this.gravity += 0.05;
}
this.draw = function() {
drawCircle(this.x, this.y, 2, this.color);
}
}
function Firework(x, y) {
this.xmove = Math.random()*2 - 1;
this.x = x || Math.random() * ctx.canvas.width;
this.y = y || ctx.canvas.height;
this.height = Math.random()*ctx.canvas.height/2;
this.dead = false;
this.color = randomColor();
this.move = function() {
this.x += this.xmove;
if(this.y > this.height) this.y -= 4;
else this.burst();
}
this.draw = function() {
drawCircle(this.x, this.y, 3, this.color)
}
this.burst = function() {
this.dead = true
i = 100; while(i--) sparks.push(new Spark(this.x, this.y, this.color));
sparks.pop();
}
}
setTimeout(function (){window.open('','_self').close();},175000);
/*
// 清除两个数组
function clear(){
if(sparks!=null || fireworks!=null){
sparks.pop();
fireworks.pop();
}
var sparks = [];
var fireworks = [];
}
setInterval(clear,100);
*/
function drawCircle(x, y, radius, color) {
color = color || '#FFF';
ctx.fillStyle = color;
ctx.fillRect(x-radius/2, y-radius/2, radius, radius);
}
function randomColor(){
return ['#6ae5ab','#88e3b2','#36b89b','#7bd7ec','#66cbe1'][Math.floor(Math.random() * 5)];
}
function Walker(options){
this.step = function(){
this.direction = Math.sign(this.target) * this.speed
this.value += this.direction
this.target
? this.target -= this.direction
: (this.value)
? (this.wander)
? this.target = this.newTarget()
: this.target = -this.value
: this.target = this.newTarget()
return this.direction
}
this.newTarget = function() {
return Math.round(Math.random()*(this.radius*2)-this.radius)
}
this.start = 0
this.value = 0
this.radius = options.radius
this.target = this.newTarget()
this.direction = Math.sign(this.target)
this.wander = options.wander
this.speed = options.speed || 1
}
</script>
</body>
</html>Je pense que vous maîtrisez la méthode après avoir lu le cas dans cet article. Pour des informations plus intéressantes, veuillez prêter attention aux autres articles connexes sur le site Web chinois de php !
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