public Tile PushContent(Directions direction)
{
Tile tile = getTileInDirection(direction);
if (!tile.IsMoveableTile())
{
return(null);
}
if (!tile.IsOccupied())
{
tile.Entity = Entity;
Entity = null;
return(tile);
}
if (tile.IsEntityNotPushable())
{
INotPushable entity = (INotPushable)tile.Entity;
entity.Update();
return(null);
}
else if (tile.IsEntityAPlayer())
{
Player player = (Player)tile.Entity;
Tile newTile = tile.PushContent(direction);
if (newTile == null)
{
return(null);
}
player.Tile = newTile;
tile.Entity = Entity;
Entity = null;
return(tile);
}
else if (tile.IsEntityPushable())
{
IPushable entity = (IPushable)tile.Entity;
if (IsEntityPushable())
{
return(null);
}
if (tile.PushContent(direction) == null)
{
return(null);
}
entity.Update(tile.getTileInDirection(direction));
tile.Entity = Entity;
Entity = null;
return(tile);
}
return(null);
}