//0 = none
//1 = left
//2 = up
//4 = right
//8 = bottom
public byte compareTilePos(TilePos tpc, TilePos[] tpa)
{
byte detected = 0;
foreach (TilePos t in tpa)
{
if (t.x == tpc.x - 1 && t.y == tpc.y)
{
detected += 1;
}
else if (t.x == tpc.x + 1 && t.y == tpc.y)
{
detected += 4;
}
else if (t.x == tpc.x && t.y == tpc.y - 1)
{
detected += 2;
}
else if (t.x == tpc.x && t.y == tpc.y + 1)
{
detected += 8;
}
else if (t.x == tpc.x && t.y == tpc.y)
{
detected += 0x80;
}
}
return(detected);
}
public TilePos compareTilePosT(TilePos tpc, TilePos[] tpa)
{
foreach (TilePos t in tpa)
{
if (t.x == tpc.x && t.y == tpc.y)
{
return(t);
}
}
return(null);
}