diff --git a/src/main/java/org/opennars/lab/grid2d/main/Cell.java b/src/main/java/org/opennars/lab/grid2d/main/Cell.java
index e07ae1003771a47a3d120463a2daa9e3e68ceb10..765ffcb26af88522db4d77765ee56ede5eea8f57 100755
--- a/src/main/java/org/opennars/lab/grid2d/main/Cell.java
+++ b/src/main/java/org/opennars/lab/grid2d/main/Cell.java
@@ -349,729 +349,4 @@ public class Cell {
         this.charge = initialCharge;
         this.is_solid=false;
     }
-    
-    
-
-//public class Tile {
-//
-//	// Tile flags
-//	public static final int TF_BLOCKED = 65536;
-//	public static final int TF_TRANSPARENT = 131072;
-//	public static final int TF_DISCOVERED = 262144;
-//	public static final int TF_ANTIMAGIC = 524288;
-//	public static final int TF_VISIBLE = 2097152;
-//	public static final int TF_LIT = 4194304;
-//	public static final int TF_DIRECTIONBASE = 8388608;
-//	public static final int TF_DIRECTION = 15 * TF_DIRECTIONBASE;
-//	public static final int TF_ACTIVE = 16 * TF_DIRECTIONBASE;
-//	public static final int TF_LOS = 32 * TF_DIRECTIONBASE;
-//
-//	public static final int TF_TYPEMASK = 65535;
-//
-//	// public static final Tile WALL=new GameTile(
-//	// Tile types
-//	public static final int NOTHING=0;
-//	public static final int FLOOR = 1;
-//	public static final int WALL = 2;
-//	public static final int BRICKWALL = 3;
-//	public static final int GOLDWALL = 4;
-//	public static final int STONEFLOOR = 5;
-//	public static final int STONEWALL = 6;
-//	public static final int METALFLOOR = 7;
-//	public static final int METALWALL = 8;
-//	public static final int CAVEFLOOR = 9;
-//	public static final int CAVEWALL = 10;
-//	public static final int ICEFLOOR = 11;
-//	public static final int ICEWALL = 12;
-//	public static final int POSHFLOOR = 13;
-//	public static final int POSHWALL = 14;
-//	public static final int FORESTFLOOR = 15;
-//	public static final int TREE = 16;
-//
-//	public static final int RIVER = 17;
-//	public static final int GRASS = 18;
-//
-//	// outdoor tiles
-//	public static final int PLAINS = 19;
-//	public static final int FORESTS = 20;
-//	public static final int HILLS = 21;
-//	public static final int MOUNTAINS = 22;
-//	public static final int PLAINSROCK = 23;
-//	public static final int MOREPLAINS = 24;
-//	public static final int SEA = 25;
-//
-//	public static final int STREAM = 26;
-//	public static final int GUNK = 27;
-//	public static final int POOL = 28;
-//
-//	public static final int SWAMP = 29;
-//
-//	public static final int WOODENWALL = 30;
-//	public static final int WOODENFLOOR = 31;
-//	public static final int MOSSFLOOR = 32;
-//	
-//	public static final int LAVA = 33;
-//	public static final int REDWALL = 34;
-//    public static final int REDFLOOR = 35;
-//
-//    public static final int MARBLEFLOOR = 36;
-//    public static final int MUDFLOOR = 37;
-//    public static final int PARQUETFLOOR = 38;
-//    
-//    public static final int LAVASEA = 39;
-//    
-//    public static final int VOID=40;
-//
-//	public static String[] names= null;
-//	public static int[] images = null;
-//	public static int[] imagefill = null;
-//	public static boolean[] filling = null;
-//	public static int[] borders = null;
-//	public static int[] movecost = null;
-//	public static boolean[] active=null;
-//	public static boolean[] issolid=null;
-//	public static boolean[] ispassable=null;
-//	public static int[] mapColours=null;
-//	
-//	public static Thing[] tiles;
-//    private static java.util.Map<String, Integer> tileByName;
-//    private static java.util.Map<Integer, String> nameById;
-//	
-//	public static int getMoveCost(int t) {
-//		return movecost[t];
-//	}
-//
-//	/** 
-//	 * Gets a tile using the given tile name
-//	 * @param tileName
-//	 * @return
-//	 */
-//	public static int fromName(String tileName) {
-//        if(nameById == null)
-//            createMaps();
-//        Integer tile = tileByName.get(tileName);
-//        if(tile != null) return tile.intValue();
-//		throw new Error("Tile named ["+tileName+"] does not exist");
-//	}
-//    
-//	public static String tileNameFor(int tile) {
-//        if(tileByName == null)
-//            createMaps();
-//        String name = nameById.get(new Integer(tile));
-//        if(name != null) return name;
-//		throw new Error("Tile of type ["+ tile +"] does not exist");
-//	}
-//
-//    private static void createMaps() {
-//        tileByName = new HashMap<>();
-//        nameById = new HashMap<>();
-//        for (int i=0; i<names.length; i++) {
-//            tileByName.put(names[i], new Integer(i));
-//            nameById.put(new Integer(i), names[i]);
-//        }
-//    }
-//	
-//	public static int getImage(int t) {
-//		return images[t];
-//	}
-//	
-//	public static String getASCII(int t) {
-//		return get(t).getString("ASCII");
-//	}
-//
-//	public static int getFilledImage(int t) {
-//		return imagefill[t];
-//	}
-//	
-//	public static boolean isFilling(int t) {
-//		return filling[t];
-//	}
-//	
-//
-//	public static void init() {
-//		Thing t;
-//		t=Lib.extend("base tile","base thing");
-//		t.set("IsTile",1);
-//		t.set("IsDestructible",0);
-//		t.set("IsDiggable",0);
-//		t.set("ImageSource","Tiles");
-//		t.set("MoveCost",100);
-//		t.set("MapColour",0x00303030);
-//		t.set("LevelMin",1);
-//		Lib.add(t);
-//		
-//		t=Lib.extend("base wall tile","base tile");
-//		t.set("IsViewBlocking",1);
-//		t.set("IsBlocking",1);
-//		t.set("IsWall",1);
-//		t.set("IsSolid",1);
-//		t.set("IsTileFilling",1);
-//		t.set("Image",20);
-//		t.set("IsDiggable",1);
-//		t.set("IsJumpable",0);
-//		t.set("IsPassable",0);
-//		t.set("DigDifficulty",100);
-//		t.set("DigTile",CAVEFLOOR);
-//		t.set("MapColour",0x00808080);
-//		t.set("ImageFill",1); // image fill bonus
-//		t.set("ASCII","#");
-//		Lib.add(t);
-//		
-//		t=Lib.extend("base floor tile","base tile");
-//		t.set("IsViewBlocking",0);
-//		t.set("IsBlocking",0);
-//		t.set("IsDiggable",1);
-//		t.set("IsPassable",1);
-//		t.set("DigDifficulty",100);
-//		t.set("DigTile",CAVEFLOOR);
-//		t.set("Image",0);
-//		t.set("ASCII",".");
-//		Lib.add(t);
-//		
-//		t=Lib.extend("base outdoor tile","base tile");
-//		t.set("IsViewBlocking",0);
-//		t.set("IsBlocking",0);
-//		t.set("IsDiggable",1);
-//		t.set("DigDifficulty",100);
-//		t.set("DigTile",CAVEFLOOR);
-//		t.set("IsOutdoorTile",1);
-//		t.set("IsPassable",1);
-//		t.set("Image",60);
-//		t.set("ASCII",".");
-//		Lib.add(t);
-//
-//		
-//		// call the generation routines for various tile types
-//		initSpecialTiles();
-//		initWalls();
-//		initSpecialWalls();
-//		initFloors();
-//		initWater();
-//		initLava();
-//		initOutdoors();
-//
-//		
-//		// finally build the lookup arrays
-//		buildTileArrays();
-//	}
-//	
-//	static {
-//		buildTileArrays();
-//	}
-//	
-//	private static void buildTileArrays() {
-//		ArrayList<Thing> al=Lib.instance().getTiles();
-//		int n=al.size();
-//		
-//		// initialise arrays to correct length
-//		names=new String[n];
-//		images=new int[n];
-//		imagefill=new int[n];
-//		filling=new boolean[n];
-//		borders=new int[n];
-//		movecost=new int[n];
-//		tiles=new Thing[n];
-//		active=new boolean[n];
-//		issolid=new boolean[n];
-//		ispassable=new boolean[n];
-//		mapColours=new int[n];
-//		
-//		// fill array values for each tile
-//		for (int i=0; i<n; i++) {
-//			Thing t=al.get(i);
-//			if (t==null) {
-//				Game.warn("Null in tile list at position "+i);
-//				continue;
-//			}
-//				
-//			names[i]=t.name();
-//			images[i]=t.getStat("Image");
-//			imagefill[i]=t.getStat("Image")+t.getStat("ImageFill");
-//			filling[i]=t.getFlag("IsTileFilling");
-//			borders[i]=t.getFlag("IsTileBordered")?1:0;
-//			movecost[i]=t.getStat("MoveCost");
-//			active[i]=t.getFlag("IsActive");
-//			mapColours[i]=t.getStat("MapColour");
-//			issolid[i]=t.getFlag("IsSolid");
-//			ispassable[i]=t.getFlag("IsPassable");
-//			tiles[i]=t;
-//		}
-//	}
-//	
-//	private static Thing get(int t) {
-//		return tiles[t&65535];
-//	}
-//	
-//	public static void action(Map m, int x, int y, int time) {
-//		int tile=m.getTile(x,y);
-//		Thing t=get(tile);
-//		
-//		if (t.getFlag("IsDamageTile")) {
-//			Thing[] ts=m.getThings(x,y);
-//			if (ts.length==0) return;
-//			
-//			int amount=t.getStat("Damage");
-//			amount*=RPG.round(time/100.0);
-//			if (amount<=0) return;
-//			String dt=t.getString("DamageType");
-//			
-//			for (int i=0; i<ts.length; i++)	{
-//				Thing thing=ts[i];
-//				
-//				if (!thing.getFlag("IsPhysical")) continue;		
-//				
-//				if (thing.getFlag("IsFlying")) {
-//					continue;
-//				}
-//				
-//				Damage.inflict(thing,amount,dt);
-//			}
-//		}
-//	}
-//	
-//	public static boolean isDiggable(Map m, int x, int y) {
-//		if ((x==0)||(y==0)||(x==m.width-1)||(y==m.height-1)) return false;
-//		int tile=m.getTile(x,y)&65535;
-//		return isDiggable(get(tile));
-//	}
-//	
-//	public static boolean isSolid(Map m, int x, int y) {
-//		int tile=m.getTile(x,y);
-//		return issolid[tile];
-//	}
-//	
-//	public static boolean isPassable(int tile) {
-//		return ispassable[tile];
-//	}
-//	
-//	public static boolean isPassable(Thing b, Map m, int x, int y) {
-//		if ((x<0)||(y<0)||(x>=m.width)||(y>=m.height)) return false;
-//		int tile=m.getTile(x,y);
-//		Thing t=get(tile);
-//		
-//		if (t.getFlag("IsPassable")) return true;
-//		
-//		// can't move to unpassable edge tile
-//		if ((x==0)||(y==0)||(x==m.width-1)||(y==m.height-1)) return false;
-//
-//		
-//		if (issolid[tile]) {
-//			if (b.getFlag("IsEthereal")) return true;
-//			if (b.getFlag("IsFlying")) {
-//				// Game.warn("flying isPassable check");
-//				if (t.getFlag("IsJumpable")) return true;
-//			}
-//			return false;
-//		}
-//		
-//		if (b.getFlag("IsFlying")) return true;
-//		
-//		// special tile cases
-//		switch (tile) {
-//			case Tile.SEA:
-//				Thing[] bs=b.getFlaggedContents("IsBoat");
-//				return (bs!=null)&&(bs.length>0);
-//			case Tile.MOUNTAINS:
-//				return b.getFlag(Skill.CLIMBING);
-//		}
-//		
-//		return true;
-//	}
-//	
-//	public static boolean isSensibleMove(Thing b, Map m, int x, int y) {
-//		if ((x<0)||(y<0)||(x>=m.width)||(y>=m.height)) return false;
-//		int tile=m.getTile(x,y);
-//		Thing t=get(tile);
-//		
-//		if (t.getFlag("IsPassable")) return true;
-//		
-//		if (issolid[tile]) {
-//			if (b.getFlag("IsEthereal")) return true;
-//			if (b.getFlag("IsFlying")) {
-//				if (t.getFlag("IsJumpable")) return true;
-//			}
-//			return false;
-//		}
-//		
-//		if (b.getFlag("IsFlying")) return true;
-//		
-//		// special tile cases
-//		switch (tile) {
-//			case Tile.SEA:
-//				Thing[] bs=b.getFlaggedContents("IsBoat");
-//				return (bs!=null)&&(bs.length>0);
-//			case Tile.MOUNTAINS:
-//				return b.getFlag(Skill.CLIMBING);
-//		}
-//		
-//		return false;
-//	}
-//	
-//	private static boolean isDiggable(Thing t) {
-//		return t.getFlag("IsDiggable");
-//	}
-//	
-//	public static int digAbility() {
-//		return 100;
-//	}
-//	
-//	public static int digCost(Thing b, Thing w) {
-//		int mining=b.getStat(Skill.MINING);
-//		if (b.getFlag("Digging")) return 100;
-//		if (mining<=0) return 0;
-//		if ((w!=null)&&w.getFlag("IsDiggingTool")) {
-//			return w.getStat("DigCost")/mining;
-//		}
-//		return 0;
-//	}
-//	
-//	public static void kick(Thing b, Map m, int x, int y) {
-//		int tile=m.getTile(x,y);
-//		Thing t=get(tile);
-//		
-//		if (t.getFlag("IsWall")) {
-//			b.message("You kick the wall - ouch!");
-//		} else if (t.getFlag("IsWaterTile")) {
-//			b.message("Your attempt to kick the water only succeeds in getting you wet!");
-//		} else {
-//			b.message("You kick thin air");
-//		}
-//	}
-//	
-//	public static boolean dig(Thing b, Map m, int x, int y) {
-//		int tile=m.getTile(x,y);
-//		Thing w=b.getWielded(RPG.WT_MAINHAND);
-//		Thing t=get(tile);
-//		
-//		if (isDiggable(m,x,y)) {
-//			int cost=digCost(b,w);
-//			if (cost<=0) return false;
-//			int hard=t.getStat("DigDifficulty");
-//			if (Rand.r(hard)<digAbility()) {
-//				if (w!=null) Damage.inflict(w,w.getStat("DigDamage"),RPG.DT_SPECIAL);
-//				b.incStat("APS",-cost);
-//				b.message("You dig through the "+t.name());
-//				Tile.dig(m,x,y);
-//				return true;
-//			} 
-//			
-//			b.message("You dig furiously at the "+t.name());
-//			return false;
-//		}
-//		
-//		b.message("You are unable to dig through "+t.getTheName());
-//		return false;
-//	}
-//
-//	public static boolean dig(Map m, int x, int y) {
-//		if (!isDiggable(m,x,y)) return false;
-//		Thing t=get(m.getTile(x,y));
-//		m.setTile(x,y,t.getStat("DigTile"));
-//		return true;
-//	}
-//	private static void addTile(int tile, Thing t) {
-//		t.set("TileValue",tile);
-//		tile=tile&65535;
-//		ArrayList<Thing> al=Lib.instance().getTiles();
-//		while (al.size()<=tile) al.add(null);
-//		if (al.get(tile)!=null) throw new Error("Tile arraylist already filled at position "+tile);
-//		al.set(tile,t);
-//		
-//		int tileMask=0;
-//		if (!t.getFlag("IsViewBlocking")) tileMask|=Tile.TF_TRANSPARENT;
-//		if (t.getFlag("IsBlocking")) tileMask|=Tile.TF_BLOCKED;
-//		if (t.getFlag("IsActive")) tileMask|=Tile.TF_ACTIVE;
-//		t.set("TileMask",tileMask);
-//		
-//		Lib.add(t);
-//	}
-//	
-//	public static int getMask(int tile) {
-//		if (tile>tiles.length) return 0;
-//		Thing t=get(tile);
-//		return t.getStat("TileMask");
-//	}
-//	
-//	private static void initSpecialTiles() {
-//		Thing t;
-//		
-//		t=Lib.extend("nothing","base tile");
-//		t.set("IsPassable",1);
-//		t.set("ASCII", " ");
-//		t.set("Image",33);
-//		addTile(NOTHING,t);
-//		
-//		t=Lib.extend("void","base tile");
-//		t.set("IsPassable",0);
-//		t.set("ASCII", " ");
-//		t.set("IsActive",1);
-//		t.set("IsDamageTile",1);
-//		t.set("DamageType","disintegrate");
-//		t.set("Damage",400);
-//		t.set("Image",33);
-//		addTile(VOID,t);
-//	}
-//	private static void initWalls() {
-//		Thing t;
-//		t=Lib.extend("wall","base wall tile");
-//		t.set("Image",20);
-//		addTile(WALL,t);
-//        
-//		t=Lib.extend("brick wall","wall");
-//		t.set("Image",20);
-//		addTile(BRICKWALL,t);
-//		
-//        t=Lib.extend("gold wall","wall");
-//		t.set("Image",78);
-//		addTile(GOLDWALL,t);
-//		
-//		t=Lib.extend("stone wall","base wall tile");
-//		t.set("Image",22);
-//		addTile(STONEWALL,t);
-//		
-//		t=Lib.extend("metal wall","base wall tile");
-//		t.set("IsDiggable",0);
-//		t.set("Image",24);
-//		addTile(METALWALL,t);
-//		
-//		t=Lib.extend("cave wall","base wall tile");
-//		t.set("Image",26);
-//		t.set("IsDiggable",1);
-//		addTile(CAVEWALL,t);
-//		
-//		t=Lib.extend("ice wall","base wall tile");
-//		t.set("Image",28);
-//		addTile(ICEWALL,t);
-//		
-//		t=Lib.extend("posh wall","base wall tile");
-//		t.set("Image",30);
-//		addTile(POSHWALL,t);
-//		
-//		t=Lib.extend("wooden wall","base wall tile");
-//		t.set("Image",38);
-//		addTile(WOODENWALL,t);
-//		
-//		t=Lib.extend("red wall","base wall tile");
-//		t.set("Image",36);
-//		addTile(REDWALL,t);
-//	}
-//	
-//	private static void initSpecialWalls() {
-//		Thing t;
-//		t=Lib.extend("tree wall","base wall tile");
-//		t.set("Image",32);
-//		t.set("ImageFill",0);
-//		t.set("IsDiggable",0);
-//		addTile(TREE,t);
-//	}
-//
-//	public static int getMapColour(int tile) {
-//		return mapColours[tile];
-//	}
-//	
-//	public static void enterTrigger(Thing t, Map m, int tx,int ty, boolean touchFloor) {
-//		int type=m.getTile(tx,ty);
-//		
-//		if ((t.x!=tx)||(t.y!=ty)) {
-//			throw new Error("Tile.enterTrigger wrong place!");
-//		}
-//		
-//		switch (type) {
-//			case SEA: case RIVER: 
-//				if (touchFloor) {
-//					if (!t.getFlag(Skill.SWIMMING)) {
-//						t.message("You struggle in the water");
-//						Damage.inflict(t,3,RPG.DT_WATER);
-//					}
-//				}
-//				break;
-//		}
-//	}	
-//	
-//	private static void initFloors() {
-//		Thing t;
-//		
-//		t=Lib.extend("grass","base floor tile");
-//		t.set("Image",60);
-//		t.set("MapColour",0x00305030);
-//		addTile(GRASS,t);
-//		
-//		t=Lib.extend("floor","base floor tile");
-//		t.set("Image",0);
-//		addTile(FLOOR,t);
-//		
-//		t=Lib.extend("stone floor","base floor tile");
-//		t.set("Image",14);
-//		addTile(STONEFLOOR,t);
-//		
-//        t=Lib.extend("marble floor","base floor tile");
-//        t.set("Image",164);
-//        t.set("IsDiggable",0);
-//        addTile(MARBLEFLOOR,t);
-//
-//        t=Lib.extend("mud floor","base floor tile");
-//        t.set("Image",162);
-//        addTile(MUDFLOOR,t);
-//
-//		t=Lib.extend("metal floor","base floor tile");
-//		t.set("Image",4);
-//        t.set("IsDiggable",0);
-//		addTile(METALFLOOR,t);
-//		
-//		t=Lib.extend("cave floor","base floor tile");
-//		t.set("Image",6);
-//		addTile(CAVEFLOOR,t);
-//		
-//		t=Lib.extend("ice floor","base floor tile");
-//		t.set("Image",8);
-//		addTile(ICEFLOOR,t);
-//		
-//		t=Lib.extend("posh floor","base floor tile");
-//		t.set("Image",10);
-//		addTile(POSHFLOOR,t);
-//		
-//		t=Lib.extend("wooden floor","base floor tile");
-//		t.set("Image",18);
-//		addTile(WOODENFLOOR,t);
-//		
-//        t=Lib.extend("parquet floor","base floor tile");
-//        t.set("Image",165);
-//        addTile(PARQUETFLOOR,t);
-//
-//		t=Lib.extend("forest floor","base floor tile");
-//		t.set("Image",12);
-//		addTile(FORESTFLOOR,t);
-//		
-//		t=Lib.extend("moss floor","base floor tile");
-//		t.set("Image",13);
-//		t.set("MoveCost",130);
-//		addTile(MOSSFLOOR,t);
-//		
-//		t=Lib.extend("red floor","base floor tile");
-//		t.set("Image",16);
-//		t.set("MoveCost",100);
-//		addTile(REDFLOOR,t);
-//		
-//	}
-//	
-//	private static void initOutdoors() {
-//		Thing t;
-//		
-//		t=Lib.extend("plains","base outdoor tile");
-//		t.set("Image",60);
-//		t.set("IsOutdoorTile",1);
-//		t.set("MapColour",0x00208030);
-//		addTile(PLAINS,t);
-//		
-//		t=Lib.extend("forests","base outdoor tile");
-//		t.set("Image",61);
-//		t.set("MoveCost",130);
-//		t.set("IsViewBlocking",1);
-//		t.set("MapColour",0x00105020);
-//		addTile(FORESTS,t);
-//		
-//		t=Lib.extend("hills","base outdoor tile");
-//		t.set("Image",62);
-//		t.set("MoveCost",150);
-//		t.set("ASCII","^");
-//		t.set("MapColour",0x00404040);
-//		addTile(HILLS,t);
-//		
-//		t=Lib.extend("mountains","base outdoor tile");
-//		t.set("Image",63);
-//		t.set("IsPassable",0);
-//		t.set("IsBlocking",1);
-//		t.set("IsViewBlocking",1);
-//		t.set("MoveCost",300);
-//		t.set("ASCII","&");
-//		t.set("MapColour",0x00606060);
-//		addTile(MOUNTAINS,t);
-//		
-//		t=Lib.extend("rocky plains","base outdoor tile");
-//		t.set("Image",60);
-//		t.set("MoveCost",130);
-//		addTile(PLAINSROCK,t);
-//		
-//		t=Lib.extend("open plains","base outdoor tile");
-//		t.set("Image",60);
-//		addTile(MOREPLAINS,t);
-//		
-//		t=Lib.extend("swamps","base outdoor tile");
-//		t.set("Image",203);
-//		t.set("ASCII","-");
-//		t.set("MapColour",0x00504030);
-//		addTile(SWAMP,t);
-//		
-//		t=Lib.extend("sea","base water tile");
-//		t.set("Image",66);
-//		t.set("IsOutdoorTile",1);
-//		t.set("IsBlocking",1);
-//		t.set("MoveCost",300);
-//		t.set("MapColour",0x00103060);
-//		addTile(SEA,t);
-//		
-//		t=Lib.extend("lava sea","lava");
-//		t.set("IsOutdoorTile",1);
-//		t.set("IsBlocking",1);
-//		t.set("MoveCost",500);
-//		addTile(LAVASEA,t);
-//	}
-//	
-//	private static void initWater() {
-//		Thing t;
-//		
-//		t=Lib.extend("base water tile","base tile");
-//		t.set("IsWaterTile",1);
-//		t.set("IsViewBlocking",0);
-//		t.set("IsBlocking",0);
-//		t.set("Image",0);
-//		t.set("IsTileBordered",1);
-//		t.set("IsPassable",0);
-//		t.set("Image",181);
-//		t.set("ASCII","~");
-//		t.set("MapColour",0x00406080);
-//		Lib.add(t);
-//		
-//		t=Lib.extend("river","base water tile");
-//		t.set("IsBlocking",1);
-//		t.set("IsActive",1);
-//		t.set("IsDamageTile",1);
-//		t.set("Damage",1);
-//		t.set("DamageType","water");
-//		t.set("MoveCost",250);
-//		addTile(RIVER,t);
-//		
-//		t=Lib.extend("stream","base water tile");
-//		t.set("MoveCost",150);
-//		t.set("IsPassable",1);
-//		addTile(STREAM,t);
-//		
-//		t=Lib.extend("gunk","base water tile");
-//		t.set("Image",202);
-//		t.set("IsPassable",1);
-//		t.set("MapColour",0x00304020);
-//		addTile(GUNK,t);
-//		
-//		t=Lib.extend("pool","base water tile");
-//		addTile(POOL,t);
-//	}
-//	
-//	private static void initLava() {
-//		Thing t=Lib.extend("lava","base water tile");
-//		t.set("Image",47);
-//		t.set("IsBlocking",0);
-//		t.set("IsLavaTile",1);
-//		t.set("IsActive",1);
-//		t.set("IsDamageTile",1);
-//		t.set("DamageType","fire");
-//		t.set("Damage",400);
-//		t.set("IsPassable",0);
-//		t.set("MapColour",0x00907030);
-//		t.set("MoveCost",250);
-//		addTile(LAVA,t);
-//		
-//	}
-//
-//}    
-    
 }
diff --git a/src/main/java/org/opennars/lab/grid2d/main/RayVision.java b/src/main/java/org/opennars/lab/grid2d/main/RayVision.java
deleted file mode 100755
index f7cb0ecfeb396031b3c11844a68a05c380b93763..0000000000000000000000000000000000000000
--- a/src/main/java/org/opennars/lab/grid2d/main/RayVision.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/**
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package org.opennars.lab.grid2d.main;
-
-
-public class RayVision implements GridObject {
-    
-    public final GridAgent body;
-
-    public RayVision(GridAgent body, double focusAngle, double distance, int r) {
-        this.body = body;
-    }
-    
-    @Override
-    public void init(Grid2DSpace p) {
-        
-    }
-    
-    @Override
-    public void update(Effect nextEffect) {
-        
-    }
-
-    @Override
-    public void draw() {
-    }
-    
-}