How do I attach an event like click() on a square I draw with fillrect()
Hi guys
I work on a simple game: there si a blue square moving in a canvas, if you clic on the square you win if you clic outside you lose. I don't know how to compare the mouse position with the square position... Here is my source code<head>
<script type="text/javascript" src="jquery-1.5.2.min.js"></script>
<script>
var context;
var x=6; // the start position
var y=6; // same
var dx=1; // the speed
var dy=1; // the speed
function init()
{
context= myCanvas.getContext('2d');
setInterval(draw,6);
clicrect();
}
function draw()
{
context.clearRect(0,0, 300,300);
context.beginPath();
context.fillStyle="#0000ff";
context.fillRect(x,y,50,50);
context.closePath();
context.fill();
// Boundary Logic
if( x<1 || x>250-50) dx=-dx;
if( y<1 || y>300-50) dy=-dy;
x+=dx;
y+=dy;
}
function clicrect() {
$('#myCanvas').click(function (e)
{
if (e.target == document.getElementById("myCanvas:animated")) //that's where I am strugglin, I try to compare the mouse position with the blue square position, but the myCanvas:animated don't work.
ale开发者_如何学Gort("In");
else
alert("Out!");
});
}
</script>
</head>
<body onLoad="init();">
<canvas id="myCanvas" width="300" height="300" >
</canvas>
</body>
thanks for your help :)
Have a look at a this - looks like a reasonable place to start - elements in canvas are NOT in the DOM so jquery itself cannot interact directly
加载中,请稍侯......
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