diff options
Diffstat (limited to 'src/ByteBuffer.cpp')
| -rw-r--r-- | src/ByteBuffer.cpp | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/src/ByteBuffer.cpp b/src/ByteBuffer.cpp index 6109afdee..f3a6e3a7d 100644 --- a/src/ByteBuffer.cpp +++ b/src/ByteBuffer.cpp @@ -472,7 +472,7 @@ bool cByteBuffer::ReadLEInt(int & a_Value) -bool cByteBuffer::ReadPosition64(int & a_BlockX, int & a_BlockY, int & a_BlockZ) +bool cByteBuffer::ReadXYZPosition64(int & a_BlockX, int & a_BlockY, int & a_BlockZ) { CHECK_THREAD Int64 Value; @@ -488,7 +488,7 @@ bool cByteBuffer::ReadPosition64(int & a_BlockX, int & a_BlockY, int & a_BlockZ) // If the highest bit in the number's range is set, convert the number into negative: a_BlockX = ((BlockXRaw & 0x02000000) == 0) ? static_cast<int>(BlockXRaw) : -(0x04000000 - static_cast<int>(BlockXRaw)); - a_BlockY = ((BlockYRaw & 0x0800) == 0) ? static_cast<int>(BlockYRaw) : -(0x0800 - static_cast<int>(BlockYRaw)); + a_BlockY = ((BlockYRaw & 0x0800) == 0) ? static_cast<int>(BlockYRaw) : -(0x01000 - static_cast<int>(BlockYRaw)); a_BlockZ = ((BlockZRaw & 0x02000000) == 0) ? static_cast<int>(BlockZRaw) : -(0x04000000 - static_cast<int>(BlockZRaw)); return true; } @@ -497,6 +497,31 @@ bool cByteBuffer::ReadPosition64(int & a_BlockX, int & a_BlockY, int & a_BlockZ) +bool cByteBuffer::ReadXZYPosition64(int & a_BlockX, int & a_BlockY, int & a_BlockZ) +{ + CHECK_THREAD + Int64 Value; + if (!ReadBEInt64(Value)) + { + return false; + } + + // Convert the 64 received bits into 3 coords: + UInt32 BlockXRaw = (Value >> 38) & 0x03ffffff; // Top 26 bits + UInt32 BlockZRaw = (Value >> 12) & 0x03ffffff; // Middle 26 bits + UInt32 BlockYRaw = (Value & 0x0fff); // Bottom 12 bits + + // If the highest bit in the number's range is set, convert the number into negative: + a_BlockX = ((BlockXRaw & 0x02000000) == 0) ? static_cast<int>(BlockXRaw) : (static_cast<int>(BlockXRaw) - 0x04000000); + a_BlockY = ((BlockYRaw & 0x0800) == 0) ? static_cast<int>(BlockYRaw) : (static_cast<int>(BlockYRaw) - 0x01000); + a_BlockZ = ((BlockZRaw & 0x02000000) == 0) ? static_cast<int>(BlockZRaw) : (static_cast<int>(BlockZRaw) - 0x04000000); + return true; +} + + + + + bool cByteBuffer::ReadUUID(cUUID & a_Value) { CHECK_THREAD @@ -718,7 +743,7 @@ bool cByteBuffer::WriteVarUTF8String(const AString & a_Value) -bool cByteBuffer::WritePosition64(Int32 a_BlockX, Int32 a_BlockY, Int32 a_BlockZ) +bool cByteBuffer::WriteXYZPosition64(Int32 a_BlockX, Int32 a_BlockY, Int32 a_BlockZ) { CHECK_THREAD CheckValid(); @@ -733,6 +758,21 @@ bool cByteBuffer::WritePosition64(Int32 a_BlockX, Int32 a_BlockY, Int32 a_BlockZ +bool cByteBuffer::WriteXZYPosition64(Int32 a_BlockX, Int32 a_BlockY, Int32 a_BlockZ) +{ + CHECK_THREAD + CheckValid(); + return WriteBEInt64( + (static_cast<Int64>(a_BlockX & 0x3FFFFFF) << 38) | + (static_cast<Int64>(a_BlockZ & 0x3FFFFFF) << 26) | + (static_cast<Int64>(a_BlockY & 0xFFF)) + ); +} + + + + + bool cByteBuffer::ReadBuf(void * a_Buffer, size_t a_Count) { CHECK_THREAD |