<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<canvas id="c"></canvas>
</body>
</html>
// link http://thecodeplayer.com/walkthrough/bouncing-squares-particle-system-basic-gravity
var c=document.getElementById('c');
var ctx=c.getContext('2d');
// full screen
c.height=window.innerHeight;
c.width=window.innerWidth;
var chinese="白色的野鹤啊,请将飞的本领借我一用";
// converting
chinese=chinese.split("");
var font_size=10;
var columns=c.width/font_size;
var drops=[];
for(var x=0;x<columns;x++){
drops[x]=1;
}
// drawing the characters
function draw(){
// black BG for the canvas
ctx.fillStyle="rgba(0,0,0,0.05)";
ctx.fillRect(0,0,c.width,c.height);
ctx.fillStyle="#0f0";
ctx.font=font_size+"px";
// looping over drops
for(var i=0;i<drops.length;i++){
var text=chinese[Math.floor(Math.random()*chinese.length)];
ctx.fillText(text,i*font_size,drops[i]*font_size);
if(drops[i]*font_size>c.height&&Math.random()>0.99){
drops[i]=0;
}
drops[i]++;
}
}
setInterval(draw,1000/30);
Output
300px
You can jump to the latest bin by adding /latest
to your URL
Keyboard Shortcuts
Shortcut | Action |
---|---|
ctrl + [num] | Toggle nth panel |
ctrl + 0 | Close focused panel |
ctrl + enter | Re-render output. If console visible: run JS in console |
Ctrl + l | Clear the console |
ctrl + / | Toggle comment on selected lines |
ctrl + ] | Indents selected lines |
ctrl + [ | Unindents selected lines |
tab | Code complete & Emmet expand |
ctrl + shift + L | Beautify code in active panel |
ctrl + s | Save & lock current Bin from further changes |
ctrl + shift + s | Open the share options |
ctrl + y | Archive Bin |
Complete list of JS Bin shortcuts |
JS Bin URLs
URL | Action |
---|---|
/ | Show the full rendered output. This content will update in real time as it's updated from the /edit url. |
/edit | Edit the current bin |
/watch | Follow a Code Casting session |
/embed | Create an embeddable version of the bin |
/latest | Load the very latest bin (/latest goes in place of the revision) |
/[username]/last | View the last edited bin for this user |
/[username]/last/edit | Edit the last edited bin for this user |
/[username]/last/watch | Follow the Code Casting session for the latest bin for this user |
/quiet | Remove analytics and edit button from rendered output |
.js | Load only the JavaScript for a bin |
.css | Load only the CSS for a bin |
Except for username prefixed urls, the url may start with http://jsbin.com/abc and the url fragments can be added to the url to view it differently. |