private int Get4DirMask(Array2D <int> input, int x, int y, TilerPattern p)
{
// 3
// 0 1
// 2
int m = 0;
if (p.Connects(GetCell(input, x - 1, y)))
{
m |= 1;
}
if (p.Connects(GetCell(input, x + 1, y)))
{
m |= 2;
}
if (p.Connects(GetCell(input, x, y - 1)))
{
m |= 4;
}
if (p.Connects(GetCell(input, x, y + 1)))
{
m |= 8;
}
//if (x != 0 && p.Connects(mapInput[input[x - 1, y]])) m |= 1;
//if (y != 0 && p.Connects(mapInput[input[x, y - 1]])) m |= 4;
//if (x != input.sizeX - 1 && p.Connects(input[x + 1, y])) m |= 2;
//if (y != input.sizeY - 1 && p.Connects(input[x, y - 1])) m |= 8;
return(m);
}
public int ProcessTile(Array2D <int> input, int x, int y)
{
int t = input[x, y];
if (t < 0)
{
return(defaultOutput);
}
int tt = mapInput != null ? mapInput[t] : t;
TilerPattern p = patterns[tt];
if (p == null)
{
return(defaultOutput);
}
switch (p.type)
{
case TilerPatternType.PATH:
return(ProcessTilePath(input, x, y, tt));
case TilerPatternType.BORDER:
return(ProcessTileBorder(input, x, y, tt));
default: // SINGLE
return(p.defaultOutput[Random.Range(0, p.defaultOutput.Length)]);
}
}
private int ProcessTileBorder(Array2D <int> input, int x, int y, int tt)
{
TilerPattern p = patterns[tt];
int m = Get8DirMask(input, x, y, p);
int l = _borderLookup[m];
return(p.tiles[l]);
}
public void AddPattern(TilerPattern pattern)
{
while (patterns.Count - 1 < pattern.inputID)
{
patterns.Add(null);
}
patterns[pattern.inputID] = pattern;
}
private int Get8DirMask(Array2D <int> input, int x, int y, TilerPattern p)
{
// 0 1 2
// 3 4
// 5 6 7
int m = 0;
if (p.Connects(GetCell(input, x - 1, y - 1)))
{
m |= 1;
}
if (p.Connects(GetCell(input, x, y - 1)))
{
m |= 2;
}
if (p.Connects(GetCell(input, x + 1, y - 1)))
{
m |= 4;
}
if (p.Connects(GetCell(input, x - 1, y)))
{
m |= 8;
}
if (p.Connects(GetCell(input, x + 1, y)))
{
m |= 16;
}
if (p.Connects(GetCell(input, x - 1, y + 1)))
{
m |= 32;
}
if (p.Connects(GetCell(input, x, y + 1)))
{
m |= 64;
}
if (p.Connects(GetCell(input, x + 1, y + 1)))
{
m |= 128;
}
//if (x != 0)
//{
// if (y != 0 && p.Connects(mapInput[input[x - 1, y - 1]]))
// m |= (1 << 0);
// if (y != input.sizeY - 1 && p.Connects(mapInput[input[x - 1, y + 1]]))
// m |= (1 << 5);
// if (p.Connects(mapInput[input[x - 1, y]]))
// m |= (1 << 3);
//}
//if (x != input.sizeX - 1)
//{
// if (y != 0 && p.Connects(mapInput[input[x + 1, y - 1]]))
// m |= (1 << 2);
// if (y != input.sizeY - 1 && p.Connects(mapInput[input[x + 1, y + 1]]))
// m |= (1 << 7);
// if (p.Connects(mapInput[input[x + 1, y]]))
// m |= (1 << 4);
//}
//if (y != 0 && p.Connects(mapInput[input[x, y - 1]]))
// m |= (1 << 1);
//if (y != input.sizeY - 1 && p.Connects(mapInput[input[x, y + 1]]))
// m |= (1 << 6);
return(m);
}
private int ProcessTilePath(Array2D <int> input, int x, int y, int tt)
{
TilerPattern p = patterns[tt];
return(p.tiles[Get4DirMask(input, x, y, p)]);
}