Section 1
//MainTimeline (masking_fla.MainTimeline)
package masking_fla {
	import flash.display.*;
	import flash.events.*;
	import flash.ui.*;
	import adobe.utils.*;
	import flash.accessibility.*;
	import flash.errors.*;
	import flash.external.*;
	import flash.filters.*;
	import flash.geom.*;
	import flash.media.*;
	import flash.net.*;
	import flash.printing.*;
	import flash.system.*;
	import flash.text.*;
	import flash.utils.*;
	import flash.xml.*;

	public dynamic class MainTimeline extends MovieClip {

		public var version;
		public var my_menu:ContextMenu;
		public var mapData:Map;
		public var D;
		public var bg:Sprite;
		public var camX;
		public var camY;
		public var backParent:Sprite;
		public var camZ;
		public var camRot;
		public var bgData:BGData;
		public var backArray:Array;
		public var credit;

		public function MainTimeline(){
			addFrameScript(0, frame1, 1, frame2, 2, frame3);
		}
		public function scanLine(_arg1:Sprite, _arg2:Number){
			var _local3:Sprite;
			_local3 = new Sprite();
			_local3.graphics.beginFill(0);
			_local3.graphics.drawRect(0, _arg2, stage.stageWidth, 1);
			_local3.graphics.endFill();
			_arg1.mask = _local3;
		}
		function frame3(){
			update();
			gotoAndPlay(2);
		}
		function frame1(){
			stage.align = StageAlign.TOP_LEFT;
			my_menu = new ContextMenu();
			my_menu.hideBuiltInItems();
			version = new ContextMenuItem("Mode_7 rev. 1");
			version.enabled = false;
			credit = new ContextMenuItem("Rubber NAND !0x524E/n3E 2015");
			credit.enabled = false;
			my_menu.customItems.push(version, credit);
			contextMenu = my_menu;
			bg = new Sprite();
			bgData = new BGData(789, 239);
			bg.graphics.beginBitmapFill(bgData);
			bg.graphics.drawRect(0, 0, (789 * 3), 239);
			bg.graphics.endFill();
			stage.addChild(bg);
			backArray = new Array();
			backParent = new Sprite();
			stage.addChild(backParent);
			mapData = new Map(0x0100, 0x0100);
			populateBack(backParent, backArray, (stage.stageHeight / 2), mapData, 0x0100, 0x0100);
			camX = 128;
			camY = 64;
			camZ = 128;
			camRot = 0;
			D = 0x0100;
			update();
			stage.addEventListener(KeyboardEvent.KEY_DOWN, reportKeyDown);
		}
		public function perspectiveArray(_arg1:Array, _arg2:Number, _arg3:Number, _arg4:Number, _arg5:Number, _arg6:Number){
			var _local7:*;
			_local7 = 0;
			while (_local7 < _arg6) {
				applyPerspective(_arg1[_local7], _arg2, _arg3, _arg4, _arg5, (_local7 + (stage.stageHeight / 2)));
				_local7++;
			};
		}
		function frame2(){
			update();
		}
		public function update(){
			bg.x = ((((camRot % 360) / 360) * 789) - 789);
			perspectiveArray(backArray, camX, camY, camZ, camRot, (stage.stageHeight / 2));
		}
		public function reportKeyDown(_arg1:KeyboardEvent):void{
			switch (_arg1.keyCode){
				case Keyboard.UP:
					camZ = (camZ - Math.cos(((camRot / 180) * Math.PI)));
					camX = (camX - Math.sin(((camRot / 180) * Math.PI)));
					break;
				case Keyboard.LEFT:
					camRot = (camRot + 1);
					break;
				case Keyboard.RIGHT:
					camRot = (camRot - 1);
					break;
				case Keyboard.DOWN:
					camZ = (camZ + Math.cos(((camRot / 180) * Math.PI)));
					camX = (camX + Math.sin(((camRot / 180) * Math.PI)));
					break;
				case Keyboard.SHIFT:
					camY = (camY + 1);
					break;
				case Keyboard.CONTROL:
					camY = (camY - 1);
					break;
				case Keyboard.PAGE_UP:
					D = (D * 2);
					break;
				case Keyboard.PAGE_DOWN:
					D = (D / 2);
					break;
			};
		}
		public function applyPerspective(_arg1:Sprite, _arg2:Number, _arg3:Number, _arg4:Number, _arg5:Number, _arg6:Number){
			var _local7:Matrix;
			_local7 = new Matrix();
			_local7.translate(-(_arg2), -(_arg4));
			_local7.rotate(((_arg5 / 180) * Math.PI));
			_local7.scale((_arg6 / _arg3), (_arg6 / _arg3));
			_local7.translate((stage.stageWidth / 2), (D + _arg6));
			_arg1.transform.matrix = _local7;
		}
		public function populateBack(_arg1:Sprite, _arg2:Array, _arg3:Number, _arg4:BitmapData, _arg5:Number, _arg6:Number){
			var _local7:*;
			_local7 = 0;
			while (_local7 < _arg3) {
				_arg2.push(new Sprite());
				_arg2[_local7].graphics.beginBitmapFill(_arg4);
				_arg2[_local7].graphics.drawRect(0, 0, _arg5, _arg6);
				_arg2[_local7].graphics.endFill();
				scanLine(_arg2[_local7], (_local7 + (stage.stageHeight / 2)));
				_arg1.addChild(_arg2[_local7]);
				_local7++;
			};
		}

	}
}//package masking_fla 
Section 2
//BGData (BGData)
package {
	import flash.display.*;

	public dynamic class BGData extends BitmapData {

		public function BGData(_arg1:Number, _arg2:Number){
			super(_arg1, _arg2);
		}
	}
}//package 
Section 3
//Map (Map)
package {
	import flash.display.*;

	public dynamic class Map extends BitmapData {

		public function Map(_arg1:Number, _arg2:Number){
			super(_arg1, _arg2);
		}
	}
}//package