function level4() {	
	//boxes
	boxes.push({	//red ground
		x: cWidth / 2 + 100,
		y: cHeight / 2 + 200,
		z: 0,
		w: 5500,
		h: 300,
		l: 0,
		c: "#ff0000"
	});
	boxes.push({	//blue ground
		x: cWidth / 2 - 400,
		y: cHeight / 2 + player.size * 3,
		z: 0,
		w: 500 + 1,
		h: 500,
		l: 0,
		c: "#0021CB"	//blue
	});
	boxes.push({	//blue top
		x: cWidth / 2 - 400,
		y: cHeight / 2 - 900,
		z: 0,
		w: 6000,
		h: 500,
		l: 0,
		c: "#0021CB"	//blue
	});
	boxes.push({	//blue right end wall
		x: cWidth / 2 + 5350 - 1,
		y: cHeight / 2 - 1000,
		z: 0,
		w: 500,
		h: 2000,
		l: 0,
		c: "#0021CB"	//blue
	});
	boxes.push({	//left wall
		x: cWidth / 2 - 900,
		y: cHeight / 2 - 1000,
		z: 0,
		w: 500 + 1,
		h: 2000,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//1
		x: cWidth / 2 + 175,
		y: cHeight / 2,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"	//blue
	});
	boxes.push({	//2
		x: cWidth / 2 + 335,
		y: cHeight / 2 + 100,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//3
		x: cWidth / 2 + 370,
		y: cHeight / 2 + 100,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB",
		move: "right",
		xs: 1,				//block movement speed
		xd: 0,				//changeable block movement distance
		xdMax: 100			//unchangeable block movement distance
	});
	boxes.push({	//4
		x: cWidth / 2 + 505,
		y: cHeight / 2 + 50,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//4
		x: cWidth / 2 + 550,
		y: cHeight / 2,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//5
		x: cWidth / 2 + 600,
		y: cHeight / 2,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB",
		move: "up",
		ys: 1,
		yd: 0,
		ydMax: 200
	});
	boxes.push({	//6
		x: cWidth / 2 + 650,
		y: cHeight / 2 - 200,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//7
		x: cWidth / 2 + 750,
		y: cHeight / 2 - 200,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//8
		x: cWidth / 2 + 850,
		y: cHeight / 2 - 200,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//9
		x: cWidth / 2 + 880,
		y: cHeight / 2 - 230,
		z: 0,
		w: 30,
		h: 60,
		l: 0,
		c: "#ff0000"
	});
	boxes.push({	//10	with checkpoint
		x: cWidth / 2 + 910,
		y: cHeight / 2 - 200,
		z: 0,
		w: 150,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//11
		x: cWidth / 2 + 1200,
		y: cHeight / 2 - 25,
		z: 0,
		w: 60,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//wall of 11
		x: cWidth / 2 + 1230,
		y: cHeight / 2 - 1000,
		z: 0,
		w: 30,
		h: 1005,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//12
		x: cWidth / 2 + 1100,
		y: cHeight / 2 + 150,
		z: 0,
		w: 120,
		h: 30,
		l: 0,
		c: "#0021CB",
		move: "right",
		xs: 1,
		xd: 0,
		xdMax: 100
	});
	boxes.push({	//13
		x: cWidth / 2 + 1350,
		y: cHeight / 2 + 100,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//14
		x: cWidth / 2 + 1400,
		y: cHeight / 2 + 50,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//15
		x: cWidth / 2 + 1450,
		y: cHeight / 2,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//16
		x: cWidth / 2 + 1400,
		y: cHeight / 2 - 50,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//17
		x: cWidth / 2 + 1350,
		y: cHeight / 2 - 100,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//18
		x: cWidth / 2 + 1400,
		y: cHeight / 2 - 150,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//19
		x: cWidth / 2 + 1450,
		y: cHeight / 2 - 200,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//20
		x: cWidth / 2 + 1725,
		y: cHeight / 2 - 200,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//21
		x: cWidth / 2 + 2000,
		y: cHeight / 2 - 200,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//22 	with checkpoint
		x: cWidth / 2 + 2275,
		y: cHeight / 2 - 200,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//23
		x: cWidth / 2 + 2600,
		y: cHeight / 2 - 50,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//24
		x: cWidth / 2 + 2725,
		y: cHeight / 2 + 100,
		z: 0,
		w: 30,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//25
		x: cWidth / 2 + 2800,
		y: cHeight / 2 + 170,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//26	top
		x: cWidth / 2 + 2830,
		y: cHeight / 2 - 400 - 1,
		z: 0,
		w: 560,
		h: 540,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//27
		x: cWidth / 2 + 3010,
		y: cHeight / 2 + 170,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//28
		x: cWidth / 2 + 3220,
		y: cHeight / 2 + 170,
		z: 0,
		w: 260,
		h: 30,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//29	wall
		x: cWidth / 2 + 3480,
		y: cHeight / 2 - 250,
		z: 0,
		w: 30,
		h: 450,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//30	wall2
		x: cWidth / 2 + 3590,
		y: cHeight / 2 - 400 - 1,
		z: 0,
		w: 30,
		h: 500,
		l: 0,
		c: "#0021CB"
	});
	boxes.push({	//31
		x: cWidth / 2 + 3510,
		y: cHeight / 2 + 170,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#00ff00"
	});
	boxes.push({	//32	moving red bottom
		x: cWidth / 2 + 3710,
		y: cHeight / 2 + 170,
		z: 0,
		w: 500,
		h: 1000,
		l: 0,
		c: "#ff0000",
		move: "up",
		ys: 1,
		yd: 0,
		ydMax: 300
	});
	boxes.push({	//32	moving red top
		x: cWidth / 2 + 3710,
		y: cHeight / 2 - 1000,
		z: 0,
		w: 500,
		h: 900,
		l: 0,
		c: "#ff0000",
		move: "up",
		ys: 1,
		yd: 0,
		ydMax: 300
	});
	boxes.push({	//33	moving red bottom 2
		x: cWidth / 2 + 4300,
		y: cHeight / 2 - 100,
		z: 0,
		w: 500,
		h: 1000,
		l: 0,
		c: "#ff0000",
		move: "down",
		ys: 1,
		yd: 0,
		ydMax: 300
	});
	boxes.push({	//33	moving red top 2
		x: cWidth / 2 + 4300,
		y: cHeight / 2 - 1270,
		z: 0,
		w: 500,
		h: 900,
		l: 0,
		c: "#ff0000",
		move: "down",
		ys: 1,
		yd: 0,
		ydMax: 300
	});
	boxes.push({	//34	with checkpoint
		x: cWidth / 2 + 5000,
		y: cHeight / 2,
		z: 0,
		w: 200,
		h: 30,
		l: 0,
		c: "#00ff00"
	});
	
	//enemies
	enemy.push({		//enemy chasing you throughout the level
		x: cWidth / 2 - 900,
		y: cHeight / 2,
		z: 0,
		r: 500,
		speed: 1,
		direction: "right",
		type: "move",
		fall: false,
		ball: true,
		noClip: true,
		extra: "chase"
	});
	enemy.push({
		x: cWidth / 2 + 3350,
		y: cHeight / 2 + 160 - 1,
		z: 0,
		r: 10,
		speed: 0.75,
		direction: "right",
		type: "move",
		fall: false,
		ball: false,
		noClip: false
	});
	enemy.push({
		x: cWidth / 2 + 3100,
		y: cHeight / 2 + 160 - 1,
		z: 0,
		r: 10,
		speed: 0.75,
		direction: "right",
		type: "move",
		fall: false,
		ball: false,
		noClip: false
	});
	enemy.push({
		x: cWidth / 2 + 1500,
		y: cHeight / 2 - 221,
		z: 0,
		r: 20,
		speed: 0.5,
		direction: "right",
		type: "move",
		fall: false,
		ball: false,
		noClip: false
	});
	enemy.push({
		x: cWidth / 2 + 1800,
		y: cHeight / 2 - 221,
		z: 0,
		r: 20,
		speed: 0.75,
		direction: "left",
		type: "move",
		fall: false,
		ball: false,
		noClip: false
	});
	enemy.push({
		x: cWidth / 2 + 2100,
		y: cHeight / 2 - 221,
		z: 0,
		r: 20,
		speed: 1,
		direction: "right",
		type: "move",
		fall: false,
		ball: false,
		noClip: false
	});
	enemy.push({
		x: cWidth / 2 + 2375 - 200 / 3,
		y: cHeight / 2 - 221,
		z: 0,
		r: 10,
		speed: 4,
		direction: "up",
		type: "move",
		fall: false,
		ball: true,
		noClip: false
	});
	enemy.push({
		x: cWidth / 2 + 2375 + 200 / 3,
		y: cHeight / 2 - 221,
		z: 0,
		r: 10,
		speed: 4,
		direction: "up",
		type: "move",
		fall: false,
		ball: true,
		noClip: false
	});
	
	//checkpoints
	checkpoints.push({
		x: cWidth / 2 + 1000,
		y: cHeight / 2 - 230,
		z: 0,
		r: 20,
		id: 1
	});
	checkpoints.push({
		x: cWidth / 2 + 2375,
		y: cHeight / 2 - 230,
		z: 0,
		r: 20,
		id: 2
	});
	
	//arrows
	arrows.push({
		x: cWidth / 2,
		y: cHeight / 2 - 50,
		size: 20,
		c: "#00ff00"
	});
	
	//hints
	hints.push({
		x: cWidth / 2 + 60,
		y: cHeight / 2 + 20,
		z: 0,
		radius: 30,
		id: 7
	});
	
	
	//goal
	goal.x = cWidth / 2 + 5100;
	goal.y = cHeight / 2 - 25;
	goal.z = 0;
	goal.r = 20;
}