var floor;
var ctx;
var balls = [];
window.onload = function(){
var canvas = document.getElementById('c');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
ctx = canvas.getContext('2d');
floor = new Floor(window.innerWidth/2 - 60, window.innerHeight/2 - 50, 100, 100);
for(var ii = 0; ii < 1200; ii++){
var random = Math.random();
var vel = new Vector2();
if(random < .25) vel.set(100 + 100 * Math.random(), 0);
else if(random < .5) vel.set(100 + 100 * Math.random(), 0);
else if(random < .75) vel.set(0, -100 - 100 * Math.random());
else vel.set(0, 100 + 100 * Math.random());
var ball = new Ball( 1,1, new Vector2(window.innerWidth * (Math.random() + Math.random() )/2, window.innerHeight * (Math.random() + Math.random()) /2), vel);
balls.push(ball)
}
loop();
}
function loop () {
this.ctx.fillStyle = "rgba(255, 255, 255, .08)";
this.ctx.fillRect(0, 0, window.innerWidth, window.innerHeight);
floor.update();
for(var ii = 0; ii < balls.length; ii++){
