var Vector2 = require('./Vector2'); 
var ToXY = function (index, width, height, out){ 
if (out === undefined) { 
out = new Vector2(); 
} 
var x = 0; 
var y = 0; 
var total = width * height; 
if (index > 0 && index <= total) { 
if (index > width - 1) { 
y = Math.floor(index / width); 
x = index - (y * width); 
} 
 else { 
x = index; 
} 
out.set(x, y); 
} 
return out; 
} 
; 
module.exports = ToXY;