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-rw-r--r--src/ChunkDef.h118
1 files changed, 40 insertions, 78 deletions
diff --git a/src/ChunkDef.h b/src/ChunkDef.h
index a5eccc9d6..d7b09dd3a 100644
--- a/src/ChunkDef.h
+++ b/src/ChunkDef.h
@@ -77,13 +77,19 @@ public:
idx = x + Width * z // Need to verify this with the protocol spec, currently unknown!
*/
typedef EMCSBiome BiomeMap[Width * Width];
-
+
/// The type used for block type operations and storage, AXIS_ORDER ordering
typedef BLOCKTYPE BlockTypes[NumBlocks];
-
+
/// The type used for block data in nibble format, AXIS_ORDER ordering
typedef NIBBLETYPE BlockNibbles[NumBlocks / 2];
+ /** The storage wrapper used for compressed blockdata residing in RAMz */
+ typedef std::vector<BLOCKTYPE> COMPRESSED_BLOCKTYPE;
+
+ /** The storage wrapper used for compressed nibbledata residing in RAMz */
+ typedef std::vector<NIBBLETYPE> COMPRESSED_NIBBLETYPE;
+
/// Converts absolute block coords into relative (chunk + block) coords:
inline static void AbsoluteToRelative(/* in-out */ int & a_X, int & a_Y, int & a_Z, /* out */ int & a_ChunkX, int & a_ChunkZ )
@@ -219,24 +225,13 @@ public:
ASSERT((a_Z >= 0) && (a_Z <= Width));
a_BiomeMap[a_X + Width * a_Z] = a_Biome;
}
-
-
- static NIBBLETYPE GetNibble(const NIBBLETYPE * a_Buffer, int a_BlockIdx)
- {
- if ((a_BlockIdx > -1) && (a_BlockIdx < NumBlocks))
- {
- return (a_Buffer[a_BlockIdx / 2] >> ((a_BlockIdx & 1) * 4)) & 0x0f;
- }
- ASSERT(!"cChunkDef::GetNibble(): index out of chunk range!");
- return 0;
- }
- static NIBBLETYPE GetNibble(const std::vector<NIBBLETYPE> & a_Buffer, int a_BlockIdx, bool a_IsSkyLightNibble = false)
+ static NIBBLETYPE GetNibble(const COMPRESSED_NIBBLETYPE & a_Buffer, int a_BlockIdx, bool a_IsSkyLightNibble = false)
{
if ((a_BlockIdx > -1) && (a_BlockIdx < NumBlocks))
{
- if (a_Buffer.empty() || ((size_t)(a_BlockIdx / 2) > a_Buffer.size() - 1))
+ if ((size_t)(a_BlockIdx / 2) >= a_Buffer.size())
{
return (a_IsSkyLightNibble ? 0xff : 0);
}
@@ -245,69 +240,52 @@ public:
ASSERT(!"cChunkDef::GetNibble(): index out of chunk range!");
return 0;
}
-
-
- static NIBBLETYPE GetNibble(const NIBBLETYPE * a_Buffer, int x, int y, int z)
- {
- if ((x < Width) && (x > -1) && (y < Height) && (y > -1) && (z < Width) && (z > -1))
- {
- int Index = MakeIndexNoCheck(x, y, z);
- return (a_Buffer[Index / 2] >> ((Index & 1) * 4)) & 0x0f;
- }
- ASSERT(!"cChunkDef::GetNibble(): coords out of chunk range!");
- return 0;
- }
- static NIBBLETYPE GetNibble(const std::vector<NIBBLETYPE> & a_Buffer, int x, int y, int z, bool a_IsSkyLightNibble = false)
+ static NIBBLETYPE GetNibble(const COMPRESSED_NIBBLETYPE & a_Buffer, int x, int y, int z, bool a_IsSkyLightNibble = false)
{
if ((x < Width) && (x > -1) && (y < Height) && (y > -1) && (z < Width) && (z > -1))
{
int Index = MakeIndexNoCheck(x, y, z);
- if (a_Buffer.empty() || ((size_t)(Index / 2) > a_Buffer.size() - 1))
+ if ((size_t)(Index / 2) >= a_Buffer.size())
{
return (a_IsSkyLightNibble ? 0xff : 0);
}
- return (a_Buffer[(size_t)(Index / 2)] >> ((Index & 1) * 4)) & 0x0f;
+ return ExpandNibble(a_Buffer, Index);
}
ASSERT(!"cChunkDef::GetNibble(): coords out of chunk range!");
return 0;
}
- static void SetNibble(NIBBLETYPE * a_Buffer, int a_BlockIdx, NIBBLETYPE a_Nibble)
+ static NIBBLETYPE GetNibble(const NIBBLETYPE * a_Buffer, int x, int y, int z)
{
- if ((a_BlockIdx < 0) || (a_BlockIdx >= NumBlocks))
+ if ((x < Width) && (x > -1) && (y < Height) && (y > -1) && (z < Width) && (z > -1))
{
- ASSERT(!"cChunkDef::SetNibble(): index out of range!");
- return;
+ int Index = MakeIndexNoCheck(x, y, z);
+ return (a_Buffer[(size_t)(Index / 2)] >> ((Index & 1) * 4)) & 0x0f;
}
- a_Buffer[a_BlockIdx / 2] = static_cast<NIBBLETYPE>(
- (a_Buffer[a_BlockIdx / 2] & (0xf0 >> ((a_BlockIdx & 1) * 4))) | // The untouched nibble
- ((a_Nibble & 0x0f) << ((a_BlockIdx & 1) * 4)) // The nibble being set
- );
+ ASSERT(!"cChunkDef::GetNibble(): coords out of chunk range!");
+ return 0;
}
- static void SetNibble(std::vector<NIBBLETYPE> & a_Buffer, int a_BlockIdx, NIBBLETYPE a_Nibble)
+ static void SetNibble(COMPRESSED_NIBBLETYPE & a_Buffer, int a_BlockIdx, NIBBLETYPE a_Nibble)
{
if ((a_BlockIdx < 0) || (a_BlockIdx >= NumBlocks))
{
ASSERT(!"cChunkDef::SetNibble(): index out of range!");
return;
}
- if (a_Buffer.empty() || ((size_t)(a_BlockIdx / 2) > a_Buffer.size() - 1))
+ if ((size_t)(a_BlockIdx / 2) >= a_Buffer.size())
{
a_Buffer.resize((size_t)((a_BlockIdx / 2) + 1));
}
- a_Buffer[(size_t)(a_BlockIdx / 2)] = static_cast<NIBBLETYPE>(
- (a_Buffer[a_BlockIdx / 2] & (0xf0 >> ((a_BlockIdx & 1) * 4))) | // The untouched nibble
- ((a_Nibble & 0x0f) << ((a_BlockIdx & 1) * 4)) // The nibble being set
- );
+ a_Buffer[(size_t)(a_BlockIdx / 2)] = PackNibble(a_Buffer, a_BlockIdx, a_Nibble);
}
-
-
- static void SetNibble(NIBBLETYPE * a_Buffer, int x, int y, int z, NIBBLETYPE a_Nibble)
+
+
+ static void SetNibble(COMPRESSED_NIBBLETYPE & a_Buffer, int x, int y, int z, NIBBLETYPE a_Nibble)
{
if (
(x >= Width) || (x < 0) ||
@@ -320,48 +298,32 @@ public:
}
int Index = MakeIndexNoCheck(x, y, z);
- a_Buffer[Index / 2] = static_cast<NIBBLETYPE>(
- (a_Buffer[Index / 2] & (0xf0 >> ((Index & 1) * 4))) | // The untouched nibble
- ((a_Nibble & 0x0f) << ((Index & 1) * 4)) // The nibble being set
- );
- }
-
-
- static void SetNibble(std::vector<NIBBLETYPE> & a_Buffer, int x, int y, int z, NIBBLETYPE a_Nibble)
- {
- if (
- (x >= Width) || (x < 0) ||
- (y >= Height) || (y < 0) ||
- (z >= Width) || (z < 0)
- )
- {
- ASSERT(!"cChunkDef::SetNibble(): index out of range!");
- return;
- }
-
- int Index = MakeIndexNoCheck(x, y, z);
- if (a_Buffer.empty() || ((size_t)(Index / 2) > a_Buffer.size() - 1))
+ if ((size_t)(Index / 2) >= a_Buffer.size())
{
a_Buffer.resize((size_t)((Index / 2) + 1));
}
- a_Buffer[(size_t)(Index / 2)] = static_cast<NIBBLETYPE>(
- (a_Buffer[Index / 2] & (0xf0 >> ((Index & 1) * 4))) | // The untouched nibble
- ((a_Nibble & 0x0f) << ((Index & 1) * 4)) // The nibble being set
- );
+ a_Buffer[(size_t)(Index / 2)] = PackNibble(a_Buffer, Index, a_Nibble);
}
- inline static NIBBLETYPE GetNibble(const NIBBLETYPE * a_Buffer, const Vector3i & a_BlockPos)
+private:
+
+
+ inline static NIBBLETYPE PackNibble(const COMPRESSED_NIBBLETYPE & a_Buffer, int a_Index, NIBBLETYPE a_Nibble)
{
- return GetNibble(a_Buffer, a_BlockPos.x, a_BlockPos.y, a_BlockPos.z );
+ return static_cast<NIBBLETYPE>(
+ (a_Buffer[a_Index / 2] & (0xf0 >> ((a_Index & 1) * 4))) | // The untouched nibble
+ ((a_Nibble & 0x0f) << ((a_Index & 1) * 4)) // The nibble being set
+ );
}
-
-
- inline static void SetNibble(NIBBLETYPE * a_Buffer, const Vector3i & a_BlockPos, NIBBLETYPE a_Value)
+
+
+ inline static NIBBLETYPE ExpandNibble(const COMPRESSED_NIBBLETYPE & a_Buffer, int a_Index)
{
- SetNibble( a_Buffer, a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, a_Value );
+ return (a_Buffer[a_Index / 2] >> ((a_Index & 1) * 4)) & 0x0f;
}
+
} ;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 23:15:06 +0100