var CONST = require('../const/ORIENTATION_CONST'); 
var HexagonalWorldToTileY = require('./HexagonalWorldToTileY'); 
var NOOP = require('../../utils/NOOP'); 
var StaggeredWorldToTileY = require('./StaggeredWorldToTileY'); 
var WorldToTileY = require('./WorldToTileY'); 
var GetWorldToTileYFunction = function (orientation){ 
if (orientation === CONST.ORTHOGONAL) { 
return WorldToTileY; 
} 
 else if (orientation === CONST.HEXAGONAL) { 
return HexagonalWorldToTileY; 
} 
 else if (orientation === CONST.STAGGERED) { 
return StaggeredWorldToTileY; 
} 
 else { 
return NOOP; 
} 
} 
; 
module.exports = GetWorldToTileYFunction;