/**
* Sorry about the length, but each part is pretty well seperated, so it shouldn't be too difficult to
* follow hopefully (-nonanon).
*
* This code takes the information about what tiles are adjacent (each of the 8 directions either has an adjacent connectable or not),
* and converts this into the mesh to use, along with a direction to rotate the mesh in.
*/
private void UpdateMeshAndDirection()
{
// Count number of connections along cardinal, to determine which 'outer' mesh we use of O, C, I/L, T, X
var generalCardinals = generalAdjacents.GetCardinalInfo();
float rotation = 0.0f;
Mesh mesh;
if (generalCardinals.IsO())
{
mesh = o;
}
else if (generalCardinals.IsC())
{
mesh = c;
rotation = DirectionHelper.AngleBetween(Direction.East, generalCardinals.GetOnlyPositive());
}
else if (generalCardinals.IsI())
{
var specificCardinals = specificAdjacents.GetCardinalInfo();
if (specificCardinals.numConnections == 1)
{
mesh = iBorder;
rotation = DirectionHelper.AngleBetween(Direction.West, specificCardinals.GetOnlyPositive());
}
else
{
mesh = specificCardinals.numConnections == 2 ? i : iAlone;
rotation = OrientationHelper.AngleBetween(Orientation.Horizontal, generalCardinals.GetFirstOrientation());
}
}
else if (generalCardinals.IsL())
{
// Determine lSolid or lCorner by finding whether the area between the two connections is filled
// We check for if any of the following bitfields matches the connection bitfield
// N+NE+E = 0/1/2, E+SE+S = 2/3/4, S+SW+W = 4/5/6, W+NW+N = 6/7/0
bool isFilled = (generalAdjacents.Connections & 0b00000111) == 0b00000111 || (generalAdjacents.Connections & 0b00011100) == 0b00011100 || (generalAdjacents.Connections & 0b01110000) == 0b01110000 || (generalAdjacents.Connections & 0b11000001) == 0b11000001;
mesh = isFilled ? lSingle : lNone;
rotation = DirectionHelper.AngleBetween(Direction.SouthEast, generalCardinals.GetCornerDirection());
}
else if (generalCardinals.IsT())
{
// We make another bitfield (noticing a pattern?). 0x0 means no fills, 0x1 means right corner filled, 0x2 means left corner filled,
// therefore both corners filled = 0x3.
int corners = ((1 - generalCardinals.north) * 2 | (1 - generalCardinals.east)) * generalAdjacents.Adjacent(Direction.SouthWest)
+ ((1 - generalCardinals.east) * 2 | (1 - generalCardinals.south)) * generalAdjacents.Adjacent(Direction.NorthWest)
+ ((1 - generalCardinals.south) * 2 | (1 - generalCardinals.west)) * generalAdjacents.Adjacent(Direction.NorthEast)
+ ((1 - generalCardinals.west) * 2 | (1 - generalCardinals.north)) * generalAdjacents.Adjacent(Direction.SouthEast);
mesh = corners == 0 ? tNone
: corners == 1 ? tSingleLeft
: corners == 2 ? tSingleRight
: tDouble;
rotation = DirectionHelper.AngleBetween(Direction.West, generalCardinals.GetOnlyNegative());
}
else
{
// This sneaky piece of code uses the cardinal info to store diagonals by rotating everything -45 degrees
// NE -> N, SW -> S, etc.
var diagonals = new AdjacencyBitmap.CardinalInfo((byte)(generalAdjacents.Connections >> 1));
switch (diagonals.numConnections)
{
case 0:
mesh = xNone;
break;
case 1:
mesh = xSingle;
rotation = DirectionHelper.AngleBetween(Direction.West, diagonals.GetOnlyPositive());
break;
case 2:
if (diagonals.north == diagonals.south)
{
mesh = xOpposite;
rotation = OrientationHelper.AngleBetween(Orientation.Vertical, diagonals.GetFirstOrientation());
}
else
{
mesh = xSide;
rotation = DirectionHelper.AngleBetween(Direction.SouthWest, diagonals.GetCornerDirection());
}
break;
case 3:
mesh = xTriple;
rotation = DirectionHelper.AngleBetween(Direction.East, diagonals.GetOnlyNegative());
break;
default:
mesh = xQuad;
break;
}
}
if (filter == null)
{
filter = GetComponent <MeshFilter>();
}
filter.mesh = mesh;
transform.localRotation = Quaternion.Euler(transform.localRotation.eulerAngles.x, rotation, transform.localRotation.eulerAngles.z);
}
public MeshDirectionInfo GetMeshAndDirection(AdjacencyBitmap adjacents)
{
var cardinalInfo = adjacents.GetCardinalInfo();
float rotation = 0.0f;
Mesh mesh;
if (cardinalInfo.IsO())
{
mesh = o;
}
else if (cardinalInfo.IsU())
{
mesh = u;
rotation = TileHelper.AngleBetween(Direction.North, cardinalInfo.GetOnlyPositive());
if (opaque)
{
viewObstacles[0].SetActive(false);
viewObstacles[1].SetActive(false);
viewObstacles[2].SetActive(true);
viewObstacles[3].SetActive(false);
}
}
else if (cardinalInfo.IsI())
{
mesh = i;
rotation = TileHelper.AngleBetween(Orientation.Vertical, cardinalInfo.GetFirstOrientation());
if (opaque)
{
viewObstacles[0].SetActive(false);
viewObstacles[1].SetActive(false);
viewObstacles[2].SetActive(true);
viewObstacles[3].SetActive(true);
}
}
else if (cardinalInfo.IsL())
{
// Determine lSolid or lCorner by finding whether the area between the two connections is filled
// We check for if any of the following bitfields matches the connection bitfield
// N+NE+E = 0/1/2, E+SE+S = 2/3/4, S+SW+W = 4/5/6, W+NW+N = 6/7/0
bool isFilled = (adjacents.Connections & 0b00000111) == 0b00000111 || (adjacents.Connections & 0b00011100) == 0b00011100 || (adjacents.Connections & 0b01110000) == 0b01110000 || (adjacents.Connections & 0b11000001) == 0b11000001;
mesh = isFilled ? lSingle : lNone;
rotation = TileHelper.AngleBetween(Direction.NorthEast, cardinalInfo.GetCornerDirection());
if (opaque)
{
viewObstacles[0].SetActive(false);
viewObstacles[1].SetActive(true);
viewObstacles[2].SetActive(true);
viewObstacles[3].SetActive(false);
}
}
else if (cardinalInfo.IsT())
{
// We make another bitfield (noticing a pattern?). 0x0 means no fills, 0x1 means right corner filled, 0x2 means left corner filled,
// therefore both corners filled = 0x3.
int corners = ((1 - cardinalInfo.north) * 2 | (1 - cardinalInfo.east)) * adjacents.Adjacent(Direction.SouthWest)
+ ((1 - cardinalInfo.east) * 2 | (1 - cardinalInfo.south)) * adjacents.Adjacent(Direction.NorthWest)
+ ((1 - cardinalInfo.south) * 2 | (1 - cardinalInfo.west)) * adjacents.Adjacent(Direction.NorthEast)
+ ((1 - cardinalInfo.west) * 2 | (1 - cardinalInfo.north)) * adjacents.Adjacent(Direction.SouthEast);
mesh = corners == 0 ? tNone
: corners == 1 ? tSingleLeft
: corners == 2 ? tSingleRight
: tDouble;
rotation = TileHelper.AngleBetween(Direction.South, cardinalInfo.GetOnlyNegative());
if (opaque)
{
viewObstacles[0].SetActive(true);
viewObstacles[1].SetActive(true);
viewObstacles[2].SetActive(true);
viewObstacles[3].SetActive(corners >= 3);
}
}
else
{
// This sneaky piece of code uses the cardinal info to store diagonals by rotating everything -45 degrees
// NE -> N, SW -> S, etc.
var diagonals = new AdjacencyBitmap.CardinalInfo((byte)(adjacents.Connections >> 1));
switch (diagonals.numConnections)
{
case 0:
mesh = xNone;
break;
case 1:
mesh = xSingle;
rotation = TileHelper.AngleBetween(Direction.South, diagonals.GetOnlyPositive());
break;
case 2:
if (diagonals.north == diagonals.south)
{
mesh = xOpposite;
rotation = TileHelper.AngleBetween(Orientation.Horizontal, diagonals.GetFirstOrientation());
}
else
{
mesh = xSide;
rotation = TileHelper.AngleBetween(Direction.SouthEast, diagonals.GetCornerDirection());
}
break;
case 3:
mesh = xTriple;
rotation = TileHelper.AngleBetween(Direction.North, diagonals.GetOnlyNegative());
break;
default:
mesh = xQuad;
break;
}
if (opaque)
{
viewObstacles[0].SetActive(true);
viewObstacles[1].SetActive(true);
viewObstacles[2].SetActive(true);
viewObstacles[3].SetActive(true);
}
}
return(new MeshDirectionInfo {
mesh = mesh, rotation = rotation
});
}