void Move(Thing thing, string direction)
 {
     switch (direction)
     {
         case "up":
             thing.Position.Y -= 1;
             Render();
             break;
         case "down":
             thing.Position.Y += 1;
             Render();
             break;
         case "left":
             thing.Position.X -= 1;
             Render();
             break;
         case "right":
             thing.Position.X += 1;
             Render();
             break;
     }
 }
 private string Coordinates(Thing thing)
 {
     return "{X=" + (thing.Position.X).ToString() + "," + "Y=" + (thing.Position.Y).ToString() + "}";
 }