Bugg i mitt spel

		<script>
		jQuery.fn.center = function () {
    this.css("position","fixed");
    this.css("top", Math.max(0, (($(window).height() - $(this).outerHeight()) / 2) + 
                                                $(window).scrollTop()) + "px");
    this.css("left", Math.max(0, (($(window).width() - $(this).outerWidth()) / 2) + 
                                                $(window).scrollLeft()) + "px");
    return this;
}
difc=1000;
setInterval(function() {
  var number = 1000 + Math.floor(Math.random() * 3000);
  difc=number;
  console.log(difc);
},4000);
		$(document).ready(function(){
			muis=document.getElementById("music");
			muis.volume=0.2;
		$('#cent').center();
		$(window).resize(function(){
			$('#cent').center();
		});
		});
		var curdeg=0;
		var jump=1;
		var score=0;
		function updateScore(){
			$('#score').html(score);
		}
		var randnu = 0;
		setTimeout(function(){
		var blocknum = 1;
			setInterval(function(){ //every second commence spawn block
				setTimeout(function(){
					makeblock(blocknum);
					blocknum+=1;
				},difc);
			},800);
		},2000);
		setTimeout(function(){
		setInterval(function(){
			updateScore();
		},1000);
		},2000);
		
		function makeblock(bid){
			$('#gamecont').append('<div class="jbx" id="num'+bid+'"></div>');
			setTimeout(function(){
			$('#num'+bid).css('right','640px');
			setTimeout(function(){
				$('#num'+bid).remove();
			},2000);
			},0);
		}
		$(window).keypress(function(e) {
			if(jump==1){
			jump=0;
			score+=1;
			curdeg+=90;
			updateScore();
			$('#cube').css('bottom','152px');
			setTimeout(function(){
			$('#cube').css('bottom','52px');
			setTimeout(function(){
			jump=1;
			},200);
			},350);
			}
			
		});

			var clsinterval = setInterval(ccls,100);
			
			function ccls(){
				hit_list = $("#cube").collision(".jbx");
				if(hit_list.length > 0){
					$('#loose').html('Your score:'+score+' <a href="javascript:void(location.reload())">Try again</a>');
					$('#loose').show();
					$('#jump').html('Try again');
					$('#jump').attr('onClick','location.reload()');
					muis.pause();
					clearInterval(clsinterval);
				}
			}
			
			setInterval(function(){
					$('#imgg').css('transition','left 0s linear');
					$('#imgg').css('left','0px');
				setTimeout(function(){
					$('#imgg').css('transition','left 2s linear');
					setTimeout(function(){
					$('#imgg').css('left','-640px');
					});
				},0);
			},2000);
			
			setTimeout(function(){
			setInterval(function(){
			if(muis.currentTime > 45){
				var randc1 = Math.random() * 255;
				randc1=Math.round(randc1);				
				var randc2 = Math.random() * 255;
				randc2=Math.round(randc2);				
				var randc3 = Math.random() * 255;
				randc3=Math.round(randc3);
				$('#cube').css('box-shadow','0 0 70px rgb('+randc1+','+randc2+','+randc3+')');
				}
			},300);
			},500);
			setInterval(function(){
				var randNumMin = 50;
				var randNumMax = 255;
				var randInt = (Math.floor(Math.random() * (randNumMax - randNumMin + 1)) + randNumMin);
				$('.jbx').css('background','rgb('+randInt+',0,'+randInt+')');
			},300);
		</script>