/// <summary>
/// Insert a tile into the order stack.
/// </summary>
/// <param name="tile"></param>
public void AddToStack(TileBase tile)
{
if (!canAdd)
{
return;
}
//If the list is empty, add anything
if (order.Count == 0)
{
order.AddLast(tile);
}
else
{
//Only add if they are the same type and if it's not already here and it's ajacent
bool isAdjacent = (tile.row <= (order.Last.Value.row + 1) && tile.row >= (order.Last.Value.row - 1)) &&
(tile.col <= (order.Last.Value.col + 1) && tile.col >= (order.Last.Value.col - 1));
if (order.Last.Value.type == tile.type && !order.Contains(tile) && isAdjacent)
{
//DISPLAY CONNECTION
//draw line renderer to here
TileBase prev = order.Last.Value;
int y = tile.row - prev.row;
int x = tile.col - prev.col;
prev.SetLine(x, y);
//Insert
order.AddLast(tile);
}
//if the tile we are trying to add is the same as the second to last, remove the last one
//a.k.a. retracing
else if (order.Last.Previous != null && tile == order.Last.Previous.Value)
{
//reset lines
order.Last.Value.ResetLine();
order.Last.Previous.Value.ResetLine();
order.RemoveLast();
}
}
}