public bool RuleMatches(TilingRule2 rule, Vector3Int position, ITilemap tilemap, int angle)
{
for (int y = -1; y <= 1; y++)
{
for (int x = -1; x <= 1; x++)
{
//Out line
if (!(x == 0 && y == 0))
{
Vector3Int offset = new Vector3Int(x, y, 0);
Vector3Int rotated = GetRotatedPos(offset, angle);
int index = GetIndexOfOffset(rotated);
TileBase tile = tilemap.GetTile(position + offset);
if (rule.m_Neighbors [index] == TilingRule2.Neighbor.This && tile != this ||
rule.m_Neighbors [index] == TilingRule2.Neighbor.NotThis && tile == this)
{
return(false);
}
}
}
}
return(true);
}
public bool RuleMatches(TilingRule2 rule, Vector3Int position, ITilemap tilemap, ref Matrix4x4 transform)
{
//check rule against rotation of 0, 90, 180, 270
for (int angle = 0; angle <= (rule.m_RuleTransform == TilingRule2.Transform.Rotated ? 270 : 0); angle += 90)
{
if (RuleMatches(rule, position, tilemap, angle))
{
transform = Matrix4x4.TRS(Vector3.zero, Quaternion.Euler(0f, 0f, -angle), Vector3.one);
return(true);
}
}
//Check rule against x-axis mirror
if ((rule.m_RuleTransform == TilingRule2.Transform.MirrorX) && RuleMatches(rule, position, tilemap, true, false))
{
transform = Matrix4x4.TRS(Vector3.zero, Quaternion.identity, new Vector3(-1f, 1f, 1f));
return(true);
}
//Check rule against y-axis mirror
if ((rule.m_RuleTransform == TilingRule2.Transform.MirrorY) && RuleMatches(rule, position, tilemap, false, true))
{
transform = Matrix4x4.TRS(Vector3.zero, Quaternion.identity, new Vector3(1f, -1f, 1f));
return(true);
}
return(false);
}
