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Use xofts ReadPosition() code.

master
Howaner 2014-09-17 17:53:42 +02:00
parent 33c843c656
commit 3ee211bbba
1 changed files with 6 additions and 3 deletions
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9
src/ByteBuffer.cpp
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@ -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;
}