static CopyState Rotate(CopyState state, CopyState flipped, int[] m)
{
byte[] blocks = state.Blocks, extBlocks = state.ExtBlocks;
for (int i = 0; i < blocks.Length; i++)
{
ushort x, y, z;
state.GetCoords(i, out x, out y, out z);
flipped.Set(blocks[i], extBlocks[i],
Rotate(m[0], x, y, z, state),
Rotate(m[1], x, y, z, state),
Rotate(m[2], x, y, z, state));
}
int oX = state.OriginX - state.X, oY = state.OriginY - state.Y, oZ = state.OriginZ - state.Z;
flipped.OriginX = state.X + Rotate(m[0], oX, oY, oZ, state);
flipped.OriginY = state.Y + Rotate(m[1], oX, oY, oZ, state);
flipped.OriginZ = state.Z + Rotate(m[2], oX, oY, oZ, state);
// Offset is relative to Origin
oX += state.Offset.X; oY += state.Offset.Y; oZ += state.Offset.Z;
flipped.Offset.X = state.X + Rotate(m[0], oX, oY, oZ, state) - flipped.OriginX;
flipped.Offset.Y = state.Y + Rotate(m[1], oX, oY, oZ, state) - flipped.OriginY;
flipped.Offset.Z = state.Z + Rotate(m[2], oX, oY, oZ, state) - flipped.OriginZ;
return(flipped);
}
static CopyState Rotate(CopyState state, CopyState flipped, int[] m, BlockID[] transform)
{
int volume = state.Volume;
for (int i = 0; i < volume; i++)
{
ushort x, y, z;
state.GetCoords(i, out x, out y, out z);
BlockID block = transform[state.Get(i)];
flipped.Set(block,
Rotate(m[0], x, y, z, state),
Rotate(m[1], x, y, z, state),
Rotate(m[2], x, y, z, state));
}
int oX = state.OriginX - state.X, oY = state.OriginY - state.Y, oZ = state.OriginZ - state.Z;
flipped.OriginX = state.X + Rotate(m[0], oX, oY, oZ, state);
flipped.OriginY = state.Y + Rotate(m[1], oX, oY, oZ, state);
flipped.OriginZ = state.Z + Rotate(m[2], oX, oY, oZ, state);
// Offset is relative to Origin
oX += state.Offset.X; oY += state.Offset.Y; oZ += state.Offset.Z;
flipped.Offset.X = state.X + Rotate(m[0], oX, oY, oZ, state) - flipped.OriginX;
flipped.Offset.Y = state.Y + Rotate(m[1], oX, oY, oZ, state) - flipped.OriginY;
flipped.Offset.Z = state.Z + Rotate(m[2], oX, oY, oZ, state) - flipped.OriginZ;
return(flipped);
}
CopyState RotateX(CopyState state) {
CopyState newState = new CopyState(state.X, state.Y, state.Z,
state.Width, state.Length, state.Height);
byte[] blocks = state.Blocks, extBlocks = state.ExtBlocks;
int newMaxY = newState.Height - 1;
for (int i = 0; i < blocks.Length; i++) {
ushort x, y, z;
state.GetCoords(i, out x, out y, out z);
newState.Set(x, newMaxY - z, y, blocks[i], extBlocks[i]);
}
newState.SetOrigin(state.OriginX, state.OriginY, state.OriginZ);
return newState;
}
