flewkey/cuberite-2a
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Added other half of implementation

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This commit is contained in:
Tycho 2014-04-27 07:38:16 -07:00
parent 2730a41946
commit 48a2488477
1 changed files with 133 additions and 14 deletions
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147
src/ChunkBuffer.cpp
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@ -22,7 +22,7 @@ cChunkBuffer cChunkBuffer::Copy() const
void cChunkBuffer::CopyBlocks (BLOCKTYPE * a_dest, size_t a_Idx, size_t length) const
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16;
if (a_Idx > 0) a_Idx = a_Idx > length ? a_Idx - length : 0;
@ -30,7 +30,22 @@ void cChunkBuffer::CopyBlocks (BLOCKTYPE * a_dest, size_t a_Idx, size_t length
{
size_t tocopy = length > segment_length ? segment_length : length;
length -= tocopy;
memcpy(&a_dest[i * segment_length], &m_Sections[i]->m_BlockTypes, sizeof(BLOCKTYPE) * length);
if(m_Sections[i])
{
memcpy(
&a_dest[i * segment_length],
&m_Sections[i]->m_BlockTypes,
sizeof(BLOCKTYPE) * length
);
}
else
{
memset(
&a_dest[i * segment_length],
0,
sizeof(BLOCKTYPE) * length
);
}
}
}
}
@ -41,10 +56,24 @@ void cChunkBuffer::CopyBlocks (BLOCKTYPE * a_dest, size_t a_Idx, size_t length
void cChunkBuffer::CopyMeta(NIBBLETYPE * a_dest) const
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
memcpy(&a_dest[i * segment_length], &m_Sections[i]->m_BlockMeta, sizeof(NIBBLETYPE) * segment_length);
if(m_Sections[i])
{
memcpy(
&a_dest[i * segment_length],
&m_Sections[i]->m_BlockMeta,
sizeof(NIBBLETYPE) * segment_length);
}
else
{
memset(
&a_dest[i * segment_length],
0,
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
@ -54,10 +83,25 @@ void cChunkBuffer::CopyMeta(NIBBLETYPE * a_dest) const
void cChunkBuffer::CopyLight(NIBBLETYPE * a_dest) const
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
memcpy(&a_dest[i * segment_length], &m_Sections[i]->m_BlockLight, sizeof(NIBBLETYPE) * segment_length);
if(m_Sections[i])
{
memcpy(
&a_dest[i * segment_length],
&m_Sections[i]->m_BlockLight,
sizeof(NIBBLETYPE) * segment_length
);
}
else
{
memset(
&a_dest[i * segment_length],
0,
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
@ -67,10 +111,25 @@ void cChunkBuffer::CopyLight(NIBBLETYPE * a_dest) const
void cChunkBuffer::CopySkyLight(NIBBLETYPE * a_dest) const
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
memcpy(&a_dest[i * segment_length], &m_Sections[i]->m_BlockSkyLight, sizeof(NIBBLETYPE) * segment_length);
if(m_Sections[i])
{
memcpy(
&a_dest[i * segment_length],
&m_Sections[i]->m_BlockSkyLight,
sizeof(NIBBLETYPE) * segment_length
);
}
else
{
memset(
&a_dest[i * segment_length],
0xFF,
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
@ -80,13 +139,28 @@ void cChunkBuffer::CopySkyLight(NIBBLETYPE * a_dest) const
void cChunkBuffer::SetBlocks(const BLOCKTYPE * a_src)
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
if (m_Sections[i])
{
memcpy(&m_Sections[i]->m_BlockTypes, &a_src[i * segment_length], sizeof(BLOCKTYPE) * segment_length);
}
else
{
size_t j = 0;
// do nothing whilst 0
for (; j < segment_length && a_src[i * segment_length + j] == 0; j++);
if (j != segment_length)
{
m_Sections[i] = Allocate();
memcpy(
&m_Sections[i]->m_BlockTypes,
&a_src[i * segment_length],
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
}
@ -95,13 +169,28 @@ void cChunkBuffer::SetBlocks(const BLOCKTYPE * a_src)
void cChunkBuffer::SetMeta(const NIBBLETYPE * a_src)
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
if (m_Sections[i])
{
memcpy(&m_Sections[i]->m_BlockMeta, &a_src[i * segment_length], sizeof(NIBBLETYPE) * segment_length);
}
else
{
size_t j = 0;
// do nothing whilst 0
for (; j < segment_length && a_src[i * segment_length + j] == 0; j++);
if (j != segment_length)
{
m_Sections[i] = Allocate();
memcpy(
&m_Sections[i]->m_BlockTypes,
&a_src[i * segment_length],
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
}
@ -110,14 +199,29 @@ void cChunkBuffer::SetMeta(const NIBBLETYPE * a_src)
void cChunkBuffer::SetLight(const NIBBLETYPE * a_src)
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
if (m_Sections[i])
{
memcpy(&m_Sections[i]->m_BlockLight, &a_src[i * segment_length], sizeof(NIBBLETYPE) * segment_length);
}
}
else
{
size_t j = 0;
// do nothing whilst 0
for (; j < segment_length && a_src[i * segment_length + j] == 0; j++);
if (j != segment_length)
{
m_Sections[i] = Allocate();
memcpy(
&m_Sections[i]->m_BlockTypes,
&a_src[i * segment_length],
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
}
@ -125,14 +229,29 @@ void cChunkBuffer::SetLight(const NIBBLETYPE * a_src)
void cChunkBuffer::SetSkyLight (const NIBBLETYPE * a_src)
{
for (int i = 0; i < CHUNK_SECTION_NUM; i++)
for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
{
const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16 / 2;
if (m_Sections[i])
{
memcpy(&m_Sections[i]->m_BlockSkyLight, &a_src[i * segment_length], sizeof(NIBBLETYPE) * segment_length);
}
}
else
{
size_t j = 0;
// do nothing whilst 0
for (; j < segment_length && a_src[i * segment_length + j] == 0xFF; j++);
if (j != segment_length)
{
m_Sections[i] = Allocate();
memcpy(
&m_Sections[i]->m_BlockTypes,
&a_src[i * segment_length],
sizeof(BLOCKTYPE) * segment_length
);
}
}
}
}