diff options
| -rw-r--r-- | src/ByteBuffer.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/ByteBuffer.cpp b/src/ByteBuffer.cpp index 851c63858..262e0e3b5 100644 --- a/src/ByteBuffer.cpp +++ b/src/ByteBuffer.cpp @@ -497,9 +497,12 @@ bool cByteBuffer::ReadPosition(int & a_BlockX, int & a_BlockY, int & a_BlockZ) return false; } - a_BlockX = Value >> 38; - a_BlockY = Value << 26 >> 52; - a_BlockZ = Value << 38 >> 38; + UInt32 BlockXRaw = (Value >> 38) & 0x3ffffff; + UInt32 BlockYRaw = (Value >> 26) & 0xfff; + UInt32 BlockZRaw = (Value & 0x3ffffff); + a_BlockX = ((BlockXRaw & 0x2000000) == 0) ? BlockXRaw : (~(BlockXRaw & 0x1ffffff)) + 1; + a_BlockY = ((BlockYRaw & 0x800) == 0) ? BlockYRaw : (~(BlockXRaw & 0x7ff)) + 1; + a_BlockZ = ((BlockZRaw & 0x2000000) == 0) ? BlockZRaw : (~(BlockZRaw & 0x1ffffff)) + 1; return true; } |