private int GetBitMask4(Vec2i tileId)
{
TileNeighbour bitMask = TileNeighbour.None;
if (CheckUp(tileId))
{
bitMask |= TileNeighbour.Up;
}
if (CheckLeft(tileId))
{
bitMask |= TileNeighbour.Left;
}
if (CheckDown(tileId))
{
bitMask |= TileNeighbour.Down;
}
if (CheckRight(tileId))
{
bitMask |= TileNeighbour.Right;
}
return((int)bitMask);
}
private bool NoNeighbour(TileNeighbour neighbour, Tile[] myNeighbours)
{
return(myNeighbours[(int)neighbour] == null || !myNeighbours[(int)neighbour].IsOccupied || (myNeighbours[(int)neighbour].IsOccupied && myNeighbours[(int)neighbour].Occupier.Type != tileType));
}
private bool SameNeighbour(TileNeighbour neighbour, Tile[] myNeighbours)
{
return(myNeighbours[(int)neighbour] != null && myNeighbours[(int)neighbour].IsOccupied && myNeighbours[(int)neighbour].Occupier.Type == tileType);
}
private int GetBitMask8(Vec2i tileId)
{
TileNeighbour bitMask = TileNeighbour.None;
int edgeCount = 0;
bool hasEdgeUp = false;
bool hasEdgeLeft = false;
bool hasEdgeDown = false;
bool hasEdgeRight = false;
if (CheckUp(tileId))
{
bitMask |= TileNeighbour.Up;
hasEdgeUp = true;
edgeCount++;
}
if (CheckLeft(tileId))
{
bitMask |= TileNeighbour.Left;
hasEdgeLeft = true;
edgeCount++;
}
if (CheckDown(tileId))
{
bitMask |= TileNeighbour.Down;
hasEdgeDown = true;
edgeCount++;
}
if (CheckRight(tileId))
{
bitMask |= TileNeighbour.Right;
hasEdgeRight = true;
edgeCount++;
}
//no adjacent edges, ignore corners OR if one edge is set, ignre corners
if (edgeCount == 0 || edgeCount == 1)
{
return((int)bitMask);
}
//if two edges are opposite, the corner doesnt matter
if (edgeCount == 2)
{
if (hasEdgeUp && hasEdgeLeft && CheckUpLeft(tileId))
{
bitMask |= TileNeighbour.UpLeft;
}
if (hasEdgeLeft && hasEdgeDown && CheckLeftDown(tileId))
{
bitMask |= TileNeighbour.Leftdown;
}
if (hasEdgeDown && hasEdgeRight && CheckDownRight(tileId))
{
bitMask |= TileNeighbour.DownRight;
}
if (hasEdgeRight && hasEdgeUp && CheckRightUp(tileId))
{
bitMask |= TileNeighbour.RightUp;
}
return((int)bitMask);
}
if (edgeCount == 3)
{
if (!hasEdgeDown)
{
if (CheckUpLeft(tileId))
{
bitMask |= TileNeighbour.UpLeft;
}
if (CheckRightUp(tileId))
{
bitMask |= TileNeighbour.RightUp;
}
}
else if (!hasEdgeRight)
{
if (CheckUpLeft(tileId))
{
bitMask |= TileNeighbour.UpLeft;
}
if (CheckLeftDown(tileId))
{
bitMask |= TileNeighbour.Leftdown;
}
}
else if (!hasEdgeUp)
{
if (CheckDownRight(tileId))
{
bitMask |= TileNeighbour.DownRight;
}
if (CheckLeftDown(tileId))
{
bitMask |= TileNeighbour.Leftdown;
}
}
else if (!hasEdgeLeft)
{
if (CheckDownRight(tileId))
{
bitMask |= TileNeighbour.DownRight;
}
if (CheckRightUp(tileId))
{
bitMask |= TileNeighbour.RightUp;
}
}
return((int)bitMask);
}
//all edges are set: all corners can be relevant:
if (edgeCount == 4)
{
if (CheckUpLeft(tileId))
{
bitMask |= TileNeighbour.UpLeft;
}
if (CheckLeftDown(tileId))
{
bitMask |= TileNeighbour.Leftdown;
}
if (CheckDownRight(tileId))
{
bitMask |= TileNeighbour.DownRight;
}
if (CheckRightUp(tileId))
{
bitMask |= TileNeighbour.RightUp;
}
return((int)bitMask);
}
Debug.Log("Case didnt met the cases: " + bitMask);
Debug.Assert(false);
return((int)bitMask);
}
