Sketch Alignto plugin modification (utility.js)

/*
* Align To plugin for Sketch.app
* Author: Lucien Lee (Modified by Ktryn Desrochers)
* Version: 1.0
*/


function align(direction){
	if([selection count] < 2){
	  [doc showMessage:"Please select 2 or more layers."]
	}else {
		var layers = []
		for (var i=0; i < [selection count]; i++){
			layerName = selection[i].name()
			layers.push(layerName)
		}

		switch (direction){
			case "left":
				var alignObj = function(frame){
					[frame setMinX:lowerX]
				}
				break;
			case "right":
				var alignObj = function(frame){
					[frame setMaxX:higherX]
				}
				break;
			case "top":
				var alignObj = function(frame){
					[frame setMinY:lowerY]
				}
				break;
			case "bottom":
				var alignObj = function(frame){
					[frame setMaxY:higherY]
				}
				break;
			case "horizontal center":
				var alignObj = function(frame){
					[frame setMidX:((higherMidX-lowerMidX)/2)+lowerMidX]
				}
				break;
			case "vertical center":
				var alignObj = function(frame){
					[frame setMidY:((higherMidY-lowerMidY)/2)+lowerMidY]
				}
				break;
			case "center":
				var alignObj = function(frame){
					[frame setMidX:((higherMidX-lowerMidX)/2)+lowerMidX]
					[frame setMidY:((higherMidY-lowerMidY)/2)+lowerMidY]
				}
				break;
		}

	

		var lowerX = 999999999999999999
		var higherX = 0

		var lowerY = 999999999999999999
		var higherY = 0

		var lowerMidX = 999999999999999999
		var higherMidX = 0

		var lowerMidY = 999999999999999999
		var higherMidY = 0
		

		for (var i=0; i < [selection count]; i++){
		  	layer = [selection objectAtIndex:i]
			curFrame = [layer frame]
		  	
		  	if ([curFrame minX] <= lowerX){
		  		lowerX = [curFrame minX]
		  	}

		  	if ([curFrame maxX] >= higherX){
		  		higherX = [curFrame maxX]
		  	}
		  	
		  	if ([curFrame minY] <= lowerY){
		  		lowerY = [curFrame minY]
		  	}

		  	if ([curFrame maxY] >= higherY){
		  		higherY = [curFrame maxY]
		  	}

		  	if ([curFrame midX] <= lowerMidX){
		  		lowerMidX = [curFrame midX]
		  	}

		  	if ([curFrame midX] >= higherMidX){
		  		higherMidX = [curFrame midX]
		  	}
		  	
		  	if ([curFrame midY] <= lowerMidY){
		  		lowerMidY = [curFrame midY]
		  	}

		  	if ([curFrame midY] >= higherMidY){
		  		higherMidY = [curFrame midY]
		  	}
		}
		
		for (var i=0; i < [selection count]+1; i++){
		  	layer = [selection objectAtIndex:i]
		  	frame = [layer frame]
		  	alignObj(frame)
		}
	}
}