public Tile (String identifier){
		
		 this.identifier= identifier;
		 if     (identifier.equals("GRASS"))	  {image = GRASS;}
		 else if(identifier.equals("ROCK"))		  {image=  ROCK ;}
		 else if(identifier.equals("BLUE_CAMP"))  {image = BLUE_CAMP;}
		 else if(identifier.equals("BLUE_SPRITE")){image = BLUE_SPRITE;}
		 else if(identifier.equals("RED_CAMP"))   {image = RED_CAMP;}
		 else if(identifier.equals("RED_SPRITE")) {image = RED_SPRITE;}
		 else if(identifier.equals("COIN")) 	  {image = COIN;}

		
		
	}