699 lines
14 KiB
C++
699 lines
14 KiB
C++
|
|
#include "Globals.h"
|
|
#include "ChunkData.h"
|
|
|
|
cChunkData::cChunkData()
|
|
#if __cplusplus < 201103L
|
|
// auto_ptr style interface for memory management
|
|
: m_IsOwner(true)
|
|
#endif
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
m_Sections[i] = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
cChunkData::~cChunkData()
|
|
{
|
|
#if __cplusplus < 201103L
|
|
// auto_ptr style interface for memory management
|
|
if (!m_IsOwner)
|
|
{
|
|
return;
|
|
}
|
|
#endif
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
Free(m_Sections[i]);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
#if __cplusplus < 201103L
|
|
// auto_ptr style interface for memory management
|
|
cChunkData::cChunkData(const cChunkData & a_Other) :
|
|
m_IsOwner(true)
|
|
{
|
|
// Move contents and ownership from a_Other to this, pointer-wise:
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
m_Sections[i] = a_Other.m_Sections[i];
|
|
}
|
|
a_Other.m_IsOwner = false;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
cChunkData & cChunkData::operator =(const cChunkData & a_Other)
|
|
{
|
|
// If assigning to self, no-op
|
|
if (&a_Other == this)
|
|
{
|
|
return *this;
|
|
}
|
|
|
|
// Free any currently held contents:
|
|
if (m_IsOwner)
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
Free(m_Sections[i]);
|
|
}
|
|
}
|
|
|
|
// Move contents and ownership from a_Other to this, pointer-wise:
|
|
m_IsOwner = true;
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
m_Sections[i] = a_Other.m_Sections[i];
|
|
}
|
|
a_Other.m_IsOwner = false;
|
|
return *this;
|
|
}
|
|
|
|
#else
|
|
|
|
// unique_ptr style interface for memory management
|
|
cChunkData::cChunkData(cChunkData && other)
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
m_Sections[i] = other.m_Sections[i];
|
|
other.m_Sections[i] = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
cChunkData & cChunkData::operator =(cChunkData && other)
|
|
{
|
|
if (&other != this)
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
Free(m_Sections[i]);
|
|
m_Sections[i] = other.m_Sections[i];
|
|
other.m_Sections[i] = NULL;
|
|
}
|
|
}
|
|
return *this;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
BLOCKTYPE cChunkData::GetBlock(int a_X, int a_Y, int a_Z) const
|
|
{
|
|
ASSERT((a_X >= 0) && (a_X < cChunkDef::Width));
|
|
ASSERT((a_Y >= 0) && (a_Y < cChunkDef::Height));
|
|
ASSERT((a_Z >= 0) && (a_Z < cChunkDef::Width));
|
|
int Section = a_Y / CHUNK_SECTION_HEIGHT;
|
|
if (m_Sections[Section] != NULL)
|
|
{
|
|
int Index = cChunkDef::MakeIndexNoCheck(a_X, a_Y - (Section * CHUNK_SECTION_HEIGHT), a_Z);
|
|
return m_Sections[Section]->m_BlockTypes[Index];
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::SetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE a_Block)
|
|
{
|
|
if (
|
|
(a_RelX >= cChunkDef::Width) || (a_RelX < 0) ||
|
|
(a_RelY >= cChunkDef::Height) || (a_RelY < 0) ||
|
|
(a_RelZ >= cChunkDef::Width) || (a_RelZ < 0)
|
|
)
|
|
{
|
|
ASSERT(!"cChunkData::SetMeta(): index out of range!");
|
|
return;
|
|
}
|
|
|
|
int Section = a_RelY / CHUNK_SECTION_HEIGHT;
|
|
if (m_Sections[Section] == NULL)
|
|
{
|
|
if (a_Block == 0x00)
|
|
{
|
|
return;
|
|
}
|
|
m_Sections[Section] = Allocate();
|
|
if (m_Sections[Section] == NULL)
|
|
{
|
|
ASSERT(!"Failed to allocate a new section in Chunkbuffer");
|
|
return;
|
|
}
|
|
ZeroSection(m_Sections[Section]);
|
|
}
|
|
int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY - (Section * CHUNK_SECTION_HEIGHT), a_RelZ);
|
|
m_Sections[Section]->m_BlockTypes[Index] = a_Block;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NIBBLETYPE cChunkData::GetMeta(int a_RelX, int a_RelY, int a_RelZ) const
|
|
{
|
|
if (
|
|
(a_RelX < cChunkDef::Width) && (a_RelX > -1) &&
|
|
(a_RelY < cChunkDef::Height) && (a_RelY > -1) &&
|
|
(a_RelZ < cChunkDef::Width) && (a_RelZ > -1))
|
|
{
|
|
int Section = a_RelY / CHUNK_SECTION_HEIGHT;
|
|
if (m_Sections[Section] != NULL)
|
|
{
|
|
int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY - (Section * CHUNK_SECTION_HEIGHT), a_RelZ);
|
|
return (m_Sections[Section]->m_BlockMeta[Index / 2] >> ((Index & 1) * 4)) & 0x0f;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
ASSERT(!"cChunkData::GetMeta(): coords out of chunk range!");
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
bool cChunkData::SetMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Nibble)
|
|
{
|
|
if (
|
|
(a_RelX >= cChunkDef::Width) || (a_RelX < 0) ||
|
|
(a_RelY >= cChunkDef::Height) || (a_RelY < 0) ||
|
|
(a_RelZ >= cChunkDef::Width) || (a_RelZ < 0)
|
|
)
|
|
{
|
|
ASSERT(!"cChunkData::SetMeta(): index out of range!");
|
|
return false;
|
|
}
|
|
|
|
int Section = a_RelY / CHUNK_SECTION_HEIGHT;
|
|
if (m_Sections[Section] == NULL)
|
|
{
|
|
if ((a_Nibble & 0xf) == 0x00)
|
|
{
|
|
return false;
|
|
}
|
|
m_Sections[Section] = Allocate();
|
|
if (m_Sections[Section] == NULL)
|
|
{
|
|
ASSERT(!"Failed to allocate a new section in Chunkbuffer");
|
|
return false;
|
|
}
|
|
ZeroSection(m_Sections[Section]);
|
|
}
|
|
int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY - (Section * CHUNK_SECTION_HEIGHT), a_RelZ);
|
|
NIBBLETYPE oldval = m_Sections[Section]->m_BlockMeta[Index / 2] >> ((Index & 1) * 4) & 0xf;
|
|
m_Sections[Section]->m_BlockMeta[Index / 2] = static_cast<NIBBLETYPE>(
|
|
(m_Sections[Section]->m_BlockMeta[Index / 2] & (0xf0 >> ((Index & 1) * 4))) | // The untouched nibble
|
|
((a_Nibble & 0x0f) << ((Index & 1) * 4)) // The nibble being set
|
|
);
|
|
return oldval == a_Nibble;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NIBBLETYPE cChunkData::GetBlockLight(int a_RelX, int a_RelY, int a_RelZ) const
|
|
{
|
|
if (
|
|
(a_RelX < cChunkDef::Width) && (a_RelX > -1) &&
|
|
(a_RelY < cChunkDef::Height) && (a_RelY > -1) &&
|
|
(a_RelZ < cChunkDef::Width) && (a_RelZ > -1)
|
|
)
|
|
{
|
|
int Section = a_RelY / CHUNK_SECTION_HEIGHT;
|
|
if (m_Sections[Section] != NULL)
|
|
{
|
|
int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY - (Section * CHUNK_SECTION_HEIGHT), a_RelZ);
|
|
return (m_Sections[Section]->m_BlockLight[Index / 2] >> ((Index & 1) * 4)) & 0x0f;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
ASSERT(!"cChunkData::GetMeta(): coords out of chunk range!");
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
NIBBLETYPE cChunkData::GetSkyLight(int a_RelX, int a_RelY, int a_RelZ) const
|
|
{
|
|
if ((a_RelX < cChunkDef::Width) && (a_RelX > -1) && (a_RelY < cChunkDef::Height) && (a_RelY > -1) && (a_RelZ < cChunkDef::Width) && (a_RelZ > -1))
|
|
{
|
|
int Section = a_RelY / CHUNK_SECTION_HEIGHT;
|
|
if (m_Sections[Section] != NULL)
|
|
{
|
|
int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY - (Section * CHUNK_SECTION_HEIGHT), a_RelZ);
|
|
return (m_Sections[Section]->m_BlockLight[Index / 2] >> ((Index & 1) * 4)) & 0x0f;
|
|
}
|
|
else
|
|
{
|
|
return 0xF;
|
|
}
|
|
}
|
|
ASSERT(!"cChunkData::GetMeta(): coords out of chunk range!");
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
cChunkData cChunkData::Copy(void) const
|
|
{
|
|
cChunkData copy;
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
copy.m_Sections[i] = Allocate();
|
|
*copy.m_Sections[i] = *m_Sections[i];
|
|
}
|
|
}
|
|
return copy;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::CopyBlocks(BLOCKTYPE * a_Dest, size_t a_Idx, size_t a_Length) const
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16;
|
|
if (a_Idx > 0)
|
|
{
|
|
a_Idx = std::max(a_Idx - a_Length, (size_t) 0);
|
|
}
|
|
if (a_Idx == 0)
|
|
{
|
|
size_t ToCopy = std::min(SegmentLength, a_Length);
|
|
a_Length -= ToCopy;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&a_Dest[i * SegmentLength],
|
|
&m_Sections[i]->m_BlockTypes,
|
|
sizeof(BLOCKTYPE) * ToCopy
|
|
);
|
|
}
|
|
else
|
|
{
|
|
memset(
|
|
&a_Dest[i * SegmentLength],
|
|
0,
|
|
sizeof(BLOCKTYPE) * ToCopy
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::CopyMeta(NIBBLETYPE * a_Dest) const
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&a_Dest[i * SegmentLength],
|
|
&m_Sections[i]->m_BlockMeta,
|
|
sizeof(NIBBLETYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
memset(
|
|
&a_Dest[i * SegmentLength],
|
|
0,
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::CopyBlockLight(NIBBLETYPE * a_Dest) const
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&a_Dest[i * SegmentLength],
|
|
&m_Sections[i]->m_BlockLight,
|
|
sizeof(NIBBLETYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
memset(
|
|
&a_Dest[i * SegmentLength],
|
|
0,
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::CopySkyLight(NIBBLETYPE * a_Dest) const
|
|
{
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&a_Dest[i * SegmentLength],
|
|
&m_Sections[i]->m_BlockSkyLight,
|
|
sizeof(NIBBLETYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
memset(
|
|
&a_Dest[i * SegmentLength],
|
|
0xFF,
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::SetBlocks(const BLOCKTYPE * a_Src)
|
|
{
|
|
ASSERT(a_Src != NULL);
|
|
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockTypes,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
// j counts how many of leading zeros the buffer has
|
|
// if j == SegmentLength then the buffer is all zeros so there is no point
|
|
// creating the buffer.
|
|
size_t j = 0;
|
|
// do nothing whilst 0
|
|
for (; (j < SegmentLength) && (a_Src[i * SegmentLength + j] == 0); j++);
|
|
if (j != SegmentLength)
|
|
{
|
|
m_Sections[i] = Allocate();
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockTypes,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockMeta,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockMeta)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockLight,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockLight)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockSkyLight,
|
|
0xFF,
|
|
sizeof(m_Sections[i]->m_BlockSkyLight)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
void cChunkData::SetMeta(const NIBBLETYPE * a_Src)
|
|
{
|
|
ASSERT(a_Src != NULL);
|
|
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockMeta,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(NIBBLETYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
// j counts how many of leading zeros the buffer has
|
|
// if j == SegmentLength then the buffer is all zeros so there is no point
|
|
// creating the buffer.
|
|
size_t j = 0;
|
|
// do nothing whilst 0
|
|
for (; (j < SegmentLength) && (a_Src[i * SegmentLength + j] == 0); j++);
|
|
if (j != SegmentLength)
|
|
{
|
|
m_Sections[i] = Allocate();
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockMeta,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockTypes,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockTypes)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockLight,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockLight)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockSkyLight,
|
|
0xFF,
|
|
sizeof(m_Sections[i]->m_BlockSkyLight)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
void cChunkData::SetBlockLight(const NIBBLETYPE * a_Src)
|
|
{
|
|
if (a_Src == NULL)
|
|
{
|
|
return;
|
|
}
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockLight,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(NIBBLETYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
// j counts how many of leading zeros the buffer has
|
|
// if j == SegmentLength then the buffer is all zeros so there is no point
|
|
// creating the buffer.
|
|
size_t j = 0;
|
|
// do nothing whilst 0
|
|
for (; (j < SegmentLength) && (a_Src[i * SegmentLength + j] == 0); j++);
|
|
if (j != SegmentLength)
|
|
{
|
|
m_Sections[i] = Allocate();
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockLight,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockTypes,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockTypes)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockMeta,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockMeta)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockSkyLight,
|
|
0xFF,
|
|
sizeof(m_Sections[i]->m_BlockSkyLight)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
void cChunkData::SetSkyLight(const NIBBLETYPE * a_Src)
|
|
{
|
|
if (a_Src == NULL)
|
|
{
|
|
return;
|
|
}
|
|
|
|
for (size_t i = 0; i < CHUNK_SECTION_COUNT; i++)
|
|
{
|
|
const size_t SegmentLength = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
|
|
if (m_Sections[i] != NULL)
|
|
{
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockSkyLight,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(NIBBLETYPE) * SegmentLength
|
|
);
|
|
}
|
|
else
|
|
{
|
|
// j counts how many of leading zeros the buffer has
|
|
// if j == SegmentLength then the buffer is all zeros so there is no point
|
|
// creating the buffer.
|
|
size_t j = 0;
|
|
// do nothing whilst 0
|
|
for (; (j < SegmentLength) && (a_Src[i * SegmentLength + j]) == 0xFF; j++);
|
|
if (j != SegmentLength)
|
|
{
|
|
m_Sections[i] = Allocate();
|
|
memcpy(
|
|
&m_Sections[i]->m_BlockSkyLight,
|
|
&a_Src[i * SegmentLength],
|
|
sizeof(BLOCKTYPE) * SegmentLength
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockTypes,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockTypes)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockMeta,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockMeta)
|
|
);
|
|
memset(
|
|
m_Sections[i]->m_BlockLight,
|
|
0x00,
|
|
sizeof(m_Sections[i]->m_BlockLight)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
cChunkData::sChunkSection * cChunkData::Allocate(void)
|
|
{
|
|
// TODO: Use an allocation pool
|
|
return new cChunkData::sChunkSection;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::Free(cChunkData::sChunkSection * a_Section)
|
|
{
|
|
// TODO: Use an allocation pool
|
|
delete a_Section;
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void cChunkData::ZeroSection(cChunkData::sChunkSection * a_Section) const
|
|
{
|
|
memset(
|
|
a_Section->m_BlockTypes,
|
|
0x00,
|
|
sizeof(a_Section->m_BlockTypes)
|
|
);
|
|
memset(
|
|
a_Section->m_BlockMeta,
|
|
0x00,
|
|
sizeof(a_Section->m_BlockMeta)
|
|
);
|
|
memset(
|
|
a_Section->m_BlockLight,
|
|
0x00,
|
|
sizeof(a_Section->m_BlockLight)
|
|
);
|
|
memset(
|
|
a_Section->m_BlockSkyLight,
|
|
0xFF,
|
|
sizeof(a_Section->m_BlockSkyLight)
|
|
);
|
|
}
|
|
|
|
|
|
|
|
|