<html>
<head>
<link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/themes/smoothness/jquery-ui.min.css" rel="stylesheet" type="text/css" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js"></script>
<script src="http://code.jquery.com/jquery-latest.js"></script>
<script src="http://calebevans.me/projects/jcanvas/resources/jcanvas/jcanvas.js"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<canvas id='canvas' width="675px" height="675px"></canvas>
</body>
</html>
canvas{
border:2px solid black;
background:#002b36;
}
var context = document.getElementById('canvas').getContext('2d');
var divisor ;
var div ={
x:canvas.width,
y:canvas.height
};
function gameBoard(){
this.context = document.getElementById('canvas').getContext('2d');
this.div ={
x:canvas.width,
y:canvas.height
};
this.setDiv = function(canvasSize){
divisor = {
x:0,
y:0
};
var i = 25 ;
while ( divisor.x === 0 || divisor.y === 0){
if ( divisor.x === 0 && canvasSize.x%i===0){
divisor.x = i;
}
if (divisor.y === 0 && canvasSize.y%i === 0 ){
divisor.y=i;
}
i++;
}
this.div.x = divisor.x;
this.div.y = divisor.y;
console.log("div.x:"+div.x+" div.y:"+div.y);
}
}
function setDiv(canvasSize){
divisor = {
x:0,
y:0
};
var i = 25 ;
while ( divisor.x === 0 || divisor.y === 0){
if ( divisor.x === 0 && canvasSize.x%i===0){
divisor.x = i;
}
if (divisor.y === 0 && canvasSize.y%i === 0 ){
divisor.y=i;
}
i++;
}
div.x = divisor.x;
div.y = divisor.y;
console.log("div.x:"+div.x+" div.y:"+div.y);
}
function getDotCoord(clickPos,div){
var i = 0 ;
for ( i = 0 ; i < clickPos.x ; i+=div.x){}
clickPos.x = i-(div.x/2);
for ( i = 0 ; i < clickPos.y ; i+=div.y){}
clickPos.y = i-(div.y/2);
return clickPos;
}
function getMousePos(canvas,event){
var rect = canvas.getBoundingClientRect();
return {
x: event.clientX - rect.left,
y: event.clientY - rect.top
};
}
function drawGuide(canvasSize){
setDiv(canvasSize);
var c = document.getElementById('canvas');
var ctx = c.getContext('2d');
for ( var k = 0 ; k < canvasSize.x ; k=k+div.x){
ctx.fillStyle="#FFF";
ctx.moveTo(k,0);
ctx.lineTo(k,canvasSize.y);
ctx.stroke();
}
for ( l = 0 ; l < canvasSize.y ; l=l+div.y){
ctx.fillStyle="#000";
ctx.moveTo(0,l);
ctx.lineTo(canvasSize.x,l);
ctx.stroke();
}
}
canvas.addEventListener('mousedown', function(evt) {
var mousePos = getMousePos(canvas, evt);
var message = 'Mouse position: ' + mousePos.x + ',' + mousePos.y;
mousePos = getDotCoord(mousePos,div);
$("canvas").drawArc({
fillStyle: "#FFF",
x: mousePos.x, y: mousePos.y,
radius: (div.x-2.5)/2
});
}, false);
function drawRect(x,y,div){
context.fillStyle="#FF0000";
context.fillRect(x,y,div.x,div.y);
}
w ={
x:canvas.width,
y:canvas.height
};
drawGuide(w);
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. |