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-rw-r--r--src/ChunkData.cpp320
1 files changed, 320 insertions, 0 deletions
diff --git a/src/ChunkData.cpp b/src/ChunkData.cpp
new file mode 100644
index 000000000..160d118ad
--- /dev/null
+++ b/src/ChunkData.cpp
@@ -0,0 +1,320 @@
+
+#include "Globals.h"
+#include "ChunkData.h"
+
+cChunkData cChunkData::Copy() const
+{
+ cChunkData copy;
+ for (int i = 0; i < CHUNK_SECTION_NUM; i++)
+ {
+ if(m_Sections[i])
+ {
+ 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 length) const
+{
+ 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;
+ if (a_Idx == 0)
+ {
+ size_t tocopy = length > segment_length ? segment_length : length;
+ length -= tocopy;
+ if(m_Sections[i])
+ {
+ memcpy(
+ &a_dest[i * segment_length],
+ &m_Sections[i]->m_BlockTypes,
+ sizeof(BLOCKTYPE) * tocopy
+ );
+ }
+ else
+ {
+ memset(
+ &a_dest[i * segment_length],
+ 0,
+ sizeof(BLOCKTYPE) * tocopy
+ );
+ }
+ }
+ }
+}
+
+
+
+
+
+void cChunkData::CopyMeta(NIBBLETYPE * a_dest) const
+{
+ 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(
+ &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
+ );
+ }
+ }
+}
+
+
+
+
+
+void cChunkData::CopyLight(NIBBLETYPE * a_dest) const
+{
+ 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(
+ &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
+ );
+ }
+ }
+}
+
+
+
+
+
+void cChunkData::CopySkyLight(NIBBLETYPE * a_dest) const
+{
+ 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(
+ &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
+ );
+ }
+ }
+}
+
+
+
+
+
+void cChunkData::SetBlocks(const BLOCKTYPE * a_src)
+{
+ for (size_t i = 0; i < CHUNK_SECTION_NUM; i++)
+ {
+ const size_t segment_length = CHUNK_SECTION_HEIGHT * 16 * 16;
+ 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
+ );
+ 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));
+ }
+ else
+ {
+ Free(m_Sections[i]);
+ m_Sections[i] = 0;
+ }
+ }
+ }
+}
+
+
+
+
+void cChunkData::SetMeta(const NIBBLETYPE * a_src)
+{
+ 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_BlockMeta,
+ &a_src[i * segment_length],
+ sizeof(BLOCKTYPE) * segment_length
+ );
+ 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));
+ }
+ else
+ {
+ Free(m_Sections[i]);
+ m_Sections[i] = 0;
+ }
+ }
+ }
+}
+
+
+
+
+void cChunkData::SetLight(const NIBBLETYPE * a_src)
+{
+ if (!a_src) return;
+ 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_BlockLight,
+ &a_src[i * segment_length],
+ sizeof(BLOCKTYPE) * segment_length
+ );
+ 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));
+ }
+ else
+ {
+ Free(m_Sections[i]);
+ m_Sections[i] = 0;
+ }
+ }
+ }
+}
+
+
+
+
+void cChunkData::SetSkyLight (const NIBBLETYPE * a_src)
+{
+ if (!a_src) return;
+ 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_BlockSkyLight,
+ &a_src[i * segment_length],
+ sizeof(BLOCKTYPE) * segment_length
+ );
+ 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));
+ }
+ else
+ {
+ Free(m_Sections[i]);
+ m_Sections[i] = 0;
+ }
+ }
+ }
+}
+
+
+
+
+
+cChunkData::sChunkSection * cChunkData::Allocate() const
+{
+ // TODO: use a allocation pool
+ return new cChunkData::sChunkSection;
+}
+
+
+
+void cChunkData::Free(cChunkData::sChunkSection * ptr) const
+{
+ delete ptr;
+}
+
+
+
+void cChunkData::ZeroSection(cChunkData::sChunkSection * ptr) const
+{
+ memset(ptr->m_BlockTypes,0x00,sizeof(ptr->m_BlockTypes));
+ memset(ptr->m_BlockMeta,0x00,sizeof(ptr->m_BlockMeta));
+ memset(ptr->m_BlockLight,0x00,sizeof(ptr->m_BlockLight));
+ memset(ptr->m_BlockSkyLight,0xFF,sizeof(ptr->m_BlockSkyLight));
+}
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 00:37:27 +0100