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// SetChunkData.cpp
// Implements the cSetChunkData class used for sending loaded / generated chunk
#include "Globals.h"
#include "SetChunkData.h"
cSetChunkData::cSetChunkData(int a_ChunkX, int a_ChunkZ, bool a_ShouldMarkDirty) :
m_ChunkX(a_ChunkX),
m_ChunkZ(a_ChunkZ),
m_IsLightValid(false),
m_IsHeightMapValid(false),
m_AreBiomesValid(false),
m_ShouldMarkDirty(a_ShouldMarkDirty)
{
}
cSetChunkData::cSetChunkData(
int a_ChunkX, int a_ChunkZ,
const BLOCKTYPE * a_BlockTypes,
const NIBBLETYPE * a_BlockMetas,
const NIBBLETYPE * a_BlockLight,
const NIBBLETYPE * a_SkyLight,
const cChunkDef::HeightMap * a_HeightMap,
const cChunkDef::BiomeMap * a_Biomes,
cEntityList & a_Entities,
cBlockEntityList & a_BlockEntities,
bool a_ShouldMarkDirty
) :
m_ChunkX(a_ChunkX),
m_ChunkZ(a_ChunkZ),
m_ShouldMarkDirty(a_ShouldMarkDirty)
{
// Check the params' validity:
ASSERT(a_BlockTypes != NULL);
ASSERT(a_BlockMetas != NULL);
ASSERT(a_Biomes != NULL);
// Copy block types and metas:
memcpy(m_BlockTypes, a_BlockTypes, sizeof(cChunkDef::BlockTypes));
memcpy(m_BlockMetas, a_BlockMetas, sizeof(cChunkDef::BlockNibbles));
// Copy lights, if both given:
if ((a_BlockLight != NULL) && (a_SkyLight != NULL))
{
memcpy(m_BlockLight, a_BlockLight, sizeof(m_BlockLight));
memcpy(m_SkyLight, a_SkyLight, sizeof(m_SkyLight));
m_IsLightValid = true;
}
else
{
m_IsLightValid = false;
}
// Copy the heightmap, if available:
if (a_HeightMap != NULL)
{
memcpy(m_HeightMap, a_HeightMap, sizeof(m_HeightMap));
m_IsHeightMapValid = true;
}
else
{
m_IsHeightMapValid = false;
}
// Copy biomes, if available:
if (a_Biomes != NULL)
{
memcpy(m_Biomes, a_Biomes, sizeof(m_Biomes));
m_AreBiomesValid = true;
}
else
{
m_AreBiomesValid = false;
}
// Move entities and blockentities:
std::swap(m_Entities, a_Entities);
std::swap(m_BlockEntities, a_BlockEntities);
}
void cSetChunkData::CalculateHeightMap(void)
{
for (int x = 0; x < cChunkDef::Width; x++)
{
for (int z = 0; z < cChunkDef::Width; z++)
{
for (int y = cChunkDef::Height - 1; y > -1; y--)
{
int index = cChunkDef::MakeIndexNoCheck(x, y, z);
if (m_BlockTypes[index] != E_BLOCK_AIR)
{
m_HeightMap[x + z * cChunkDef::Width] = (HEIGHTTYPE)y;
break;
}
} // for y
} // for z
} // for x
m_IsHeightMapValid = true;
}
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