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timer.html
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timer.html
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<!DOCTYPE html>
<html lang="en" style="height:100%;">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body style="height:100%;margin:0;padding:0;">
<canvas id="canvas" style="height:100%">请升级浏览器</canvas>
<script type="text/javascript" src="digit.js"></script>
<script type="text/javascript">
//设置时间
const endTime=new Date();
endTime.setTime(endTime.getTime()+3600*1000)
var curShowTimeSeconds=0;
//存储数字上生成小球
var balls=[];
const colors=["#5520EB","#03FFA1","#090909","#F01E1E","#D0F01E","#1ED0F0","#FFC666","#8C7F93","#626262","#2ABB6A"];
window.onload=function(){
WINDOW_WIDTH=document.body.clientWidth;
WINDOW_HEIGHT=document.body.clientHeight;
MARGIN_LEFT=Math.round(WINDOW_WIDTH/10);
RADIUS=Math.round(WINDOW_WIDTH*4/5/108)-1;
MARGIN_TOP=Math.round(WINDOW_HEIGHT/5);
var canvas=document.getElementById("canvas");
canvas.width=WINDOW_WIDTH;
canvas.height=WINDOW_HEIGHT;
var context=canvas.getContext("2d");
curShowTimeSeconds=getCurrentShowTimeSeconds();
//reader(context)
//动画函数
setInterval(
function(){
reader(context);
update();
}
,
40
);
}
function getCurrentShowTimeSeconds(){
var curTime=new Date();
var ret=endTime.getTime()-curTime.getTime();
//Math.round四舍五入
ret=Math.round(ret/1000);
return ret>0? ret:0;
}
function update(){
var nextShowTimeSeconds=getCurrentShowTimeSeconds();
var nextHours=parseInt(nextShowTimeSeconds/3600);
var nextMinutes=parseInt((nextShowTimeSeconds-nextHours*3600)/60);
var nextSeconds=nextShowTimeSeconds%60;
var curHours=parseInt(curShowTimeSeconds/3600);
var curMinutes=parseInt((curShowTimeSeconds-curHours*3600)/60);
var curSeconds=curShowTimeSeconds%60;
if(nextSeconds!=curSeconds){
//对小时
//十位数进行判断
if(parseInt(curHours/10)!=parseInt(nextHours/10)){
//加小球(位置,数字)
addBalls(MARGIN_LEFT+0,MARGIN_TOP,parseInt(curHours/10));
}
//个位数
if(parseInt(curHours%10)!=parseInt(nextHours%10)){
addBalls(MARGIN_LEFT+15*(RADIUS+1),MARGIN_TOP,parseInt(curHours%10));
}
//对分钟
if(parseInt(curMinutes/10)!=parseInt(nextMinutes/10)){
addBalls(MARGIN_LEFT+39*(RADIUS+1),MARGIN_TOP,parseInt(curMinutes/10));
}
if(parseInt(curMinutes%10)!=parseInt(nextMinutes%10)){
addBalls(MARGIN_LEFT+54*(RADIUS+1),MARGIN_TOP,parseInt(curMinutes%10));
}
//对秒数
if(parseInt(curSeconds/10)!=parseInt(nextSeconds/10)){
addBalls(MARGIN_LEFT+78*(RADIUS+1),MARGIN_TOP,parseInt(curSeconds/10));
}
if(parseInt(curSeconds%10)!=parseInt(nextSeconds%10)){
addBalls(MARGIN_LEFT+93*(RADIUS+1),MARGIN_TOP,parseInt(curSeconds%10));
}
//对时间
curShowTimeSeconds=nextShowTimeSeconds;
}
updateBalls();
// console.log(balls.length);
}
//小球运动
function updateBalls(){
var cnt=0;
for (var i = 0; i < balls.length; i++) {
balls[i].x+=balls[i].vx;
balls[i].y+=balls[i].vy;
balls[i].vy+=balls[i].g;
//碰撞检测
if(balls[i].y>=WINDOW_HEIGHT-RADIUS){
balls[i].y=WINDOW_HEIGHT-RADIUS;
//-速度衰减
balls[i].vy=-balls[i].vy*0.50;
}
}
//保留小球
var cnt=0;
for(var i = 0; i < balls.length; i++){
if( balls[i].x+RADIUS>0&&balls[i].x-RADIUS<WINDOW_WIDTH){
balls[cnt++]=balls[i];
}}
while(balls.length>Math.min(300,cnt)){
balls.pop();
}
}
//运动小球的信息声明
function addBalls(x,y,num){
for (var i = 0; i < digit[num].length; i++) {
for (var j = 0; j < digit[num][i].length; j++) {
if(digit[num][i][j]==1){
var aBall={
x:x+j*2*(RADIUS+1)+(RADIUS+1),
y:y+i*2*(RADIUS+1)+(RADIUS+1),
g:2.5+Math.random(),
//取-4或4
vx:Math.pow(-1,Math.ceil(Math.random()*1000))*4,
vy:-5,
color:colors[Math.floor(Math.random()*colors.length)],
}
balls.push(aBall);
}
}
}
}
function reader(cxt){
//刷新
cxt.clearRect(0,0,WINDOW_WIDTH,WINDOW_HEIGHT);
var hours=parseInt(curShowTimeSeconds/3600);
var minutes=parseInt((curShowTimeSeconds-hours*3600)/60);
var seconds=curShowTimeSeconds%60;
//开始位置,要绘制的数(一位一位),上下文环境
renderDigit(MARGIN_LEFT,MARGIN_TOP,parseInt(hours/10),cxt);
renderDigit(MARGIN_LEFT+15*(RADIUS+1),MARGIN_TOP,parseInt(hours%10),cxt);
renderDigit(MARGIN_LEFT+30*(RADIUS+1),MARGIN_TOP,10,cxt);
renderDigit(MARGIN_LEFT+39*(RADIUS+1),MARGIN_TOP,parseInt(minutes/10),cxt);
renderDigit(MARGIN_LEFT+54*(RADIUS+1),MARGIN_TOP,parseInt(minutes%10),cxt);
renderDigit(MARGIN_LEFT+69*(RADIUS+1),MARGIN_TOP,10,cxt);
renderDigit(MARGIN_LEFT+78*(RADIUS+1),MARGIN_TOP,parseInt(seconds/10),cxt);
renderDigit(MARGIN_LEFT+93*(RADIUS+1),MARGIN_TOP,parseInt(seconds%10),cxt);
//绘制小球
for (var i = 0; i < balls.length; i++) {
cxt.fillStyle=balls[i].color;
cxt.beginPath();
cxt.arc(balls[i].x,balls[i].y,RADIUS,0,2*Math.PI,true);
cxt.closePath();
cxt.fill();
}
}
function renderDigit(x,y,num,cxt){
//设置个状态,来个颜色
cxt.fillStyle="rgb(0,102,153)";
//遍历
for (var i = 0; i < digit[num].length; i++) {
for (var j = 0; j < digit[num][i].length; j++) {
if(digit[num][i][j]==1){
//绘制圆
cxt.beginPath();
cxt.arc(x+j*2*(RADIUS+1)+(RADIUS+1),y+i*2*(RADIUS+1)+(RADIUS+1),RADIUS,0,2*Math.PI);
cxt.fill();
}
}
}
}
</script>
</body>
</html>