var i;
var b;

var canvas;
var context;
var width;
var height;
var keys =[];

var pause = false;
var globalScore = 0;
var canvasHolder;

var gameStopped=false;

function init()
{
    canvas = document.getElementById("canvas");
	
	canvasholder = document.getElementById("content");
	onResize();

    width = canvas.width;
    height = canvas.height;
    context = canvas.getContext("2d");
	
	canvasholder.style.top = 
	window.addEventListener('keydown',doKeyDown,true);
	window.addEventListener('keyup',doKeyUp,true);

	context.font = "bold 12px sans-serif";
	loadAssets();
	updateScoreBoard();
}
function onResize() {
	canvasholder.style.left = (window.innerWidth-600)/2 + "px";
	canvasholder.style.top = (window.innerHeight-480)/2 + "px";
}
function doKeyDown(evt){
	keys[evt.keyCode] = true;
}
function doKeyUp(evt){
	keys[evt.keyCode] = false;
}
function roundPosition(object) {
	object.x = (object.x+.5) | 0;
	object.y = (object.y+.5) | 0;
}