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test.html
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<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" type="text/css" href="./css/style.css" />
</head>
<body>
<canvas id="canvas" width="400" height="400"></canvas>
<script type="text/javascript" src="./js/utils.js"></script>
<script type="text/javascript">
window.onload = function(){
console.log("abcdef".substr(-2, 2));
console.log(0xFF55FF);
var hexColor = '#' + (16733683).toString(16);
var color = window.parseInt(hexColor.slice(1), 16);
console.log(color);
var arr = [1, 2, 3];
arr.forEach(function(element, id){
console.log(element + id);
});
var canvas = document.getElementById("canvas"),
mouse = utils.captureMouse(canvas);
function onMouseEvent(event){
console.log(event.type);
};
function onKeyboardEvent(event){
switch(event.keyCode){
case 38:
console.log("up");
break;
case 40:
console.log("down");
break;
case 37:
console.log("left");
break;
case 39:
console.log("right");
default:
console.log(event.keyCode);
}
}
window.addEventListener('keydown', onKeyboardEvent, false);
//window.addEventListener('keyup', onKeyboardEvent, false);
canvas.addEventListener('mousedown', onMouseEvent, false);
canvas.addEventListener('mouseup', onMouseEvent, false);
canvas.addEventListener('click', onMouseEvent, false);
canvas.addEventListener('dblclick', onMouseEvent, false);
canvas.addEventListener('mousewheel', onMouseEvent, false);
canvas.addEventListener('mousemove', function(){
console.log("x:" + mouse.x + ", y:" + mouse.y);
}, false);
canvas.addEventListener('mouseover', onMouseEvent, false);
canvas.addEventListener('mouseout', onMouseEvent, false);
}
</script>
</body>
</html>