public override string ToString()
{
return($"{index} " + CompasEnumExtension.ToText(sides));
}
void PrepareSamples()
{
var templates = new List <TileInfo>();
var corners = new byte[4];
corners[(int)CornerEnum.TL] = CompasEnumExtension.ToCompasSet("WwN");
corners[(int)CornerEnum.TR] = CompasEnumExtension.ToCompasSet("NnE");
corners[(int)CornerEnum.BL] = CompasEnumExtension.ToCompasSet("SsW");
corners[(int)CornerEnum.BR] = CompasEnumExtension.ToCompasSet("EeS");
void update(TileInfo info, int index, CornerEnum corner, byte sides, byte ignoreSides)
{
info.index = index;
info.corner = corner;
var cornerSet = corners[(int)corner];
info.sides = (byte)(sides & cornerSet);
info.ignoreSides = (byte)(ignoreSides & cornerSet);
templates.Add(info);
}
void add(int tl, int tr, int bl, int br, string sides, string ignoreSides)
{
var _sides = CompasEnumExtension.ToCompasSet(sides);
var _ignoreSides = CompasEnumExtension.ToCompasSet(ignoreSides);
update(new TileInfo(), tl, CornerEnum.TL, _sides, _ignoreSides);
update(new TileInfo(), tr, CornerEnum.TR, _sides, _ignoreSides);
update(new TileInfo(), bl, CornerEnum.BL, _sides, _ignoreSides);
update(new TileInfo(), br, CornerEnum.BR, _sides, _ignoreSides);
}
add(12, 13, 8, 9, "EeS", "wns");
add(14, 15, 10, 11, "SsW", "new");
add(4, 5, 0, 1, "NnE", "esw");
add(6, 7, 2, 3, "NWw", "nes");
add(22, 23, 18, 19, "NESW", "");
TileInfo find(byte mask, CornerEnum corner)
{
var cornerSet = (byte)(corners[(int)corner] & mask);
for (int i = 0; i < templates.Count; i++)
{
var info = templates[i];
if (info.corner == corner)
{
var b = cornerSet & ~info.ignoreSides;
if (b == info.sides)
{
return(info);
}
}
}
throw new NotImplementedException();
}
samples.Add(0, new SampleInfo(0, 20, 21, 16, 17));
samples.Add(255, new SampleInfo(255, 9, 10, 5, 6));
for (int n = 0; n <= 0xFF; n++)
{
var text = CompasEnumExtension.ToText((byte)n);
var tl = find((byte)n, CornerEnum.TL);
var tr = find((byte)n, CornerEnum.TR);
var bl = find((byte)n, CornerEnum.BL);
var br = find((byte)n, CornerEnum.BR);
var index = tl.sides | tr.sides | bl.sides | br.sides;
if (!samples.TryGetValue(index, out var sample))
{
sample = new SampleInfo(index, tl.index, tr.index, bl.index, br.index);
samples.Add(index, sample);
}
indexes[n] = sample;
}
}
