private WallCuts RotateCuts(WorldRotation rot, WallCuts input, short x, short y)
{
int rotN = (int)rot;
var output = new WallCuts();
switch (rotN)
{
case 0:
return input;
case 1:
output.TRCut = input.TLCut;
if (y + 1 < blueprint.Height) output.TLCut = Cuts[(y + 1) * blueprint.Width + x].TRCut;
if (output.TLCut == WallCut.DownLeftUpRight) output.TLCut = WallCut.DownRightUpLeft; //flip cut
else if (output.TLCut == WallCut.DownRightUpLeft) output.TLCut = WallCut.DownLeftUpRight;
return output;
case 2:
output.TRCut = input.TLCut;
if (y + 1 < blueprint.Height) output.TRCut = Cuts[(y + 1) * blueprint.Width + x].TRCut;
if (x + 1 < blueprint.Width) output.TLCut = Cuts[y * blueprint.Width + x + 1].TLCut;
if (output.TLCut == WallCut.DownLeftUpRight) output.TLCut = WallCut.DownRightUpLeft; //flip cuts
else if (output.TLCut == WallCut.DownRightUpLeft) output.TLCut = WallCut.DownLeftUpRight;
if (output.TRCut == WallCut.DownLeftUpRight) output.TRCut = WallCut.DownRightUpLeft;
else if (output.TRCut == WallCut.DownRightUpLeft) output.TRCut = WallCut.DownLeftUpRight;
return output;
case 3:
output.TLCut = input.TRCut;
if (x + 1 < blueprint.Width) output.TRCut = Cuts[y * blueprint.Width + x+1].TLCut;
if (output.TRCut == WallCut.DownLeftUpRight) output.TRCut = WallCut.DownRightUpLeft; //flip cut
else if (output.TRCut == WallCut.DownRightUpLeft) output.TRCut = WallCut.DownLeftUpRight;
return output;
}
return output;
}
private void GenerateWallData(WallTile[] walls, List<int> wallsAt, bool notTop)
{
var width = blueprint.Width;
var height = blueprint.Height;
Cuts = new WallCuts[width * height];
DownJunctions = new JunctionFlags[width * height];
UpJunctions = new JunctionFlags[width * height];
foreach (var off in wallsAt)
{
var wall = walls[off];
var x = off % width;
var y = off / width;
var result = new WallCuts();
if (notTop && WallsDownAt(x, y))
{
var cuts = GetCutEdges(off % width, off / width);
if (wall.TopLeftThick && wall.TopLeftStyle != 255)
{
if (cuts != 0)
{
if ((cuts & CutawayEdges.NegativeX) == CutawayEdges.NegativeX) result.TLCut = WallCut.Up; //if we are on the very edge of the cut we're up
else if ((cuts & CutawayEdges.PositiveY) == CutawayEdges.PositiveY) {
if ((cuts & CutawayEdges.NegativeY) == CutawayEdges.NegativeY)
{
result.TLCut = WallCut.Down; //special case, cuts at both sides... just put wall down
}
else
{
result.TLCut = WallCut.DownRightUpLeft;
}
}
else if ((cuts & CutawayEdges.NegativeY) == CutawayEdges.NegativeY)
{
result.TLCut = WallCut.DownLeftUpRight;
}
else result.TLCut = WallCut.Down;
}
else
{
result.TLCut = WallCut.Down;
}
}
if (wall.TopRightStyle == 1) //NOTE: top right style also includes diagonals!
{
if (wall.Segments == WallSegments.HorizontalDiag) {
if (cuts != 0)
{
var cutOnLeft = (cuts & (CutawayEdges.PositiveY | CutawayEdges.NegativeX)) > 0;
var cutOnRight = (cuts & (CutawayEdges.NegativeY | CutawayEdges.PositiveX)) > 0;
if (cutOnLeft && cutOnRight) result.TRCut = WallCut.Down;
else if (cutOnLeft) result.TRCut = WallCut.DownRightUpLeft;
else if (cutOnRight) result.TRCut = WallCut.DownLeftUpRight;
else result.TRCut = WallCut.Down;
}
else
{
result.TRCut = WallCut.Down;
}
}
else if (wall.Segments == WallSegments.VerticalDiag)
{
if (cuts != 0) //this info is not useful for front rotation, but is useful for sides.
{
var cutOnLeft = (cuts & (CutawayEdges.PositiveY | CutawayEdges.PositiveX)) > 0;
var cutOnRight = (cuts & (CutawayEdges.NegativeY | CutawayEdges.NegativeX)) > 0;
if (cutOnLeft && cutOnRight) result.TRCut = WallCut.Down;
else if (cutOnLeft) result.TRCut = WallCut.DownRightUpLeft;
else if (cutOnRight) result.TRCut = WallCut.DownLeftUpRight;
else result.TRCut = WallCut.Down;
}
else
{
result.TRCut = WallCut.Down;
}
}
else
{
if (cuts != 0)
{
if ((cuts & CutawayEdges.NegativeY) == CutawayEdges.NegativeY) result.TRCut = WallCut.Up; //if we are on the very edge of the cut we're up
else if ((cuts & CutawayEdges.PositiveX) == CutawayEdges.PositiveX)
{
if ((cuts & CutawayEdges.NegativeX) == CutawayEdges.NegativeX)
{ //special case, cuts at both sides... just put wall down
result.TRCut = WallCut.Down;
}
else
{
result.TRCut = WallCut.DownLeftUpRight;
}
}
else if ((cuts & CutawayEdges.NegativeX) == CutawayEdges.NegativeX)
{
result.TRCut = WallCut.DownRightUpLeft;
}
else result.TRCut = WallCut.Down;
}
else
{
result.TRCut = WallCut.Down;
}
}
}
}
//add to relevant junctions
if ((wall.Segments & WallSegments.TopLeft) > 0 && !(wall.TopLeftDoor && result.TLCut > 0) && wall.TopLeftThick)
{
if (result.TLCut > 0)
{
DownJunctions[off] |= JunctionFlags.BottomLeft;
if (y < height) DownJunctions[off + width] |= JunctionFlags.TopRight;
}
else
{
UpJunctions[off] |= JunctionFlags.BottomLeft;
if (y < height) UpJunctions[off + width] |= JunctionFlags.TopRight;
}
}
if ((wall.Segments & WallSegments.TopRight) > 0 && !(wall.TopRightDoor && result.TRCut > 0) && wall.TopRightThick)
{
if (result.TRCut > 0)
{
DownJunctions[off] |= JunctionFlags.BottomRight;
if (x < width) DownJunctions[off + 1] |= JunctionFlags.TopLeft;
}
else
{
UpJunctions[off] |= JunctionFlags.BottomRight;
if (x < width) UpJunctions[off + 1] |= JunctionFlags.TopLeft;
}
}
if (wall.Segments == WallSegments.VerticalDiag && (wall.TopRightStyle == 1 || wall.TopRightStyle == 255))
{
if (result.TRCut > 0)
{
DownJunctions[off] |= JunctionFlags.DiagBottom;
if (x < width && y < height) DownJunctions[off + 1 + width] |= JunctionFlags.DiagTop;
}
else
{
UpJunctions[off] |= JunctionFlags.DiagBottom;
if (x < width && y < height) UpJunctions[off + 1 + width] |= JunctionFlags.DiagTop;
}
}
else if (wall.Segments == WallSegments.HorizontalDiag && (wall.TopRightStyle == 1 || wall.TopRightStyle == 255))
{
if (result.TRCut > 0)
{
if (x < width) DownJunctions[off + 1] |= JunctionFlags.DiagLeft;
if (y < height) DownJunctions[off + width] |= JunctionFlags.DiagRight;
}
else
{
if (x < width) UpJunctions[off + 1] |= JunctionFlags.DiagLeft;
if (y < height) UpJunctions[off + width] |= JunctionFlags.DiagRight;
}
}
Cuts[off] = result;
}
}