TestFeatures.hx

package com.leveluplabs.tdrpg;
import flash.display.BitmapData;
import flash.geom.Point;
import flash.geom.Rectangle;
import flixel.FlxG;
import flixel.graphics.FlxGraphic;
import openfl.Lib;

/**
 * ...
 * @author Ohmnivore
 */
class TestFeatures
{

	static public function artefactFix(orig:BitmapData, FrameWidth:Int, FrameHeight:Int, key:String, spacingX:Int=2, spacingY:Int=2):String
	{
		if (FlxG.bitmap.checkCache(key)) {
			return key;
		}
		
		var cont:BitmapData = TestFeatures.returnContainer(orig.width, orig.height, FrameWidth, FrameHeight, spacingX, spacingY);
		TestFeatures.placeTiles(orig, cont, FrameWidth, FrameHeight, spacingX, spacingY);
		TestFeatures.placeSafePixelColumn(orig, cont, FrameWidth, FrameHeight, spacingX, spacingY);
		
		var newcached:FlxGraphic = FlxG.bitmap.add(cont, false, key);
		
		//top left corner of the first tile
		var startX:Int = 1;
		var startY:Int = 1;
		//tile size
		var tileWidth:Int = FrameWidth;
		var tileHeight:Int = FrameHeight;
		//end of tiles
		var width:Int = Std.int(cont.width - startX);
		var height:Int = Std.int(cont.height - startY);
		
		return key;
	}
	
	static public function placeSafePixelColumn(Source:BitmapData, Dest:BitmapData, TileWidth:Int, TileHeight:Int, spacingX:Int, spacingY:Int):Void
	{
		var borderX:Int = Std.int(spacingX / 2);
		var borderY:Int = Std.int(spacingY / 2);
		var x_tot:Int = Std.int(Source.width / TileWidth);
		var y_tot:Int = Std.int(Source.height / TileHeight);
		var x_count:Int = 0;
		var y_count:Int = 0;
	
		var rect:Rectangle = new Rectangle();
		var point:Point = new Point();
		
		while (x_count <= x_tot)
		{
			while (y_count <= y_tot)
			{
				if(x_count > 0){
					//To the left
					rect.setTo(x_count * TileWidth - (TileWidth-borderX), y_count * TileHeight,
						1, TileHeight);
					point.setTo(borderX + x_count * TileWidth + x_count * spacingX - (TileWidth+spacingX) - 1,
						borderY + y_count * TileHeight + y_count * spacingY);
					for(i in 0...borderX){
						Dest.copyPixels(Source, rect, point, true);
						point.x--;
					}
					
					//To the right
					rect.setTo(x_count * TileWidth - (borderX), y_count * TileHeight,
						1, TileHeight);
					point.setTo(borderX + x_count * TileWidth + x_count * spacingX - spacingX,
						borderY + y_count * TileHeight + y_count * spacingY);
					for(i in 0...borderX){
						Dest.copyPixels(Source, rect, point, true);
						point.x++;
					}
				}
				
				if(y_count > 0){
					//To the top
					rect.setTo(x_count * TileWidth, y_count * TileHeight - (TileHeight-borderY),
						TileWidth, 1);
					point.setTo(borderX + x_count * TileWidth + x_count * spacingX,
						borderY + y_count * TileHeight + y_count * spacingY - (TileHeight+spacingY) - 1);
					for(i in 0...borderY){
						Dest.copyPixels(Source, rect, point, true);
						point.y--;
					}
					
					//To the bottom
					rect.setTo(x_count * TileWidth, y_count * TileHeight - (borderY),
						TileWidth, 1);
					point.setTo(borderX + x_count * TileWidth + x_count * spacingX,
						borderY + y_count * TileHeight + y_count * spacingY - spacingY);
					for(i in 0...borderY){
						Dest.copyPixels(Source, rect, point, true);
						point.y++;
					}
				}
				
				y_count++;
			}
			
			y_count = 0;
			x_count++;
		}
	}
	
	static public function placeTiles(Source:BitmapData, Dest:BitmapData, TileWidth:Int, TileHeight:Int, spacingX:Int, spacingY:Int):Void
	{
		var borderX:Int = Std.int(spacingX/2);
		var borderY:Int = Std.int(spacingY/2);
		var x_tot:Int = Std.int(Source.width / TileWidth);
		var y_tot:Int = Std.int(Source.height / TileHeight);
		var x_count:Int = 0;
		var y_count:Int = 0;
		
		while (x_count < x_tot)
		{
			while (y_count < y_tot)
			{
				var rect:Rectangle = new Rectangle(x_count * TileWidth, y_count * TileWidth,
					TileWidth, TileHeight);
				var point:Point = new Point(borderX + x_count * TileWidth + x_count * spacingX,
					borderY + y_count * TileHeight + y_count * spacingY);
				Dest.copyPixels(Source, rect, point, true);
				
				y_count++;
			}
			
			y_count = 0;
			x_count++;
		}
	}
	
	static public function returnContainer(Width:Int, Height:Int, TileWidth:Int, TileHeight:Int, spacingX:Int, spacingY:Int):BitmapData
	{
		var width:Int = Width + (Std.int(Width / TileWidth) - 1) * spacingX + spacingX;
		var height:Int = Height + (Std.int(Height / TileHeight) - 1) * spacingY + spacingY;
		
		return new BitmapData(width, height, true, 0x00ffffff);
	}
	
}