public override GridSquare GetNextSquare(Action action)
{
int newRow = Row, newCol = Col;
switch (action)
{
case Action.Up:
newRow -= 1;
break;
case Action.Down:
newRow += 1;
break;
case Action.Left:
newCol -= 1;
break;
case Action.Right:
newCol += 1;
break;
default:
throw new System.ArgumentException("Unsupported Action");
}
if (!ParentGrid.CoordsInRange(newRow, newCol))
{
return(this);
}
GridSquare newSquare = ParentGrid.GetSquareAt(newRow, newCol);
return(newSquare == null ? this : newSquare.Walkable?newSquare : this);
}