random point between two points

random point between two points

var rand = Math.random;
var sin = Math.sin;
var cos = Math.cos;
var PI = Math.PI;
var TWO_PI = PI * 2;
​
function randomPoint(min, max) {
  //generate a random distance between min and max
  var dist = rand() * (max - min) + min;
​
  //generate a random angle between 0 and PI * 2
  var rads = rand() * TWO_PI;
  
  // calculate the point on a cirlce with: 
  // radius: dist
  // angle: rads
  var x = sin(rads) * dist;
  var y = cos(rads) * dist;
	
  // return a simple point object
  return {x: x, y: y};
}