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Basic jungle trees with vines, efficient trees handling.

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git-svn-id: http://mc-server.googlecode.com/svn/trunk@665 0a769ca7-a7f5-676a-18bf-c427514a06d6
This commit is contained in:
madmaxoft@gmail.com
2012-07-15 13:33:43 +00:00
parent a9839b968b
commit eddc360bd7
5 changed files with 321 additions and 185 deletions
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118
source/StructGen.cpp
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@@ -50,6 +50,15 @@ template <typename T> T Clamp(T a_Value, T a_Min, T a_Max)
static bool SortTreeBlocks(const sSetBlock & a_First, const sSetBlock & a_Second)
{
return (a_First.BlockType == E_BLOCK_LOG) && (a_Second.BlockType != E_BLOCK_LOG);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cStructGenTrees:
@@ -76,7 +85,6 @@ void cStructGenTrees::GenStructures(
for (int z = 0; z <= 2; z++)
{
int BaseZ = a_ChunkZ + z - 1;
sSetBlockVector Outside;
cChunkDef::BlockTypes * BlT;
cChunkDef::BlockNibbles * BlM;
@@ -104,28 +112,18 @@ void cStructGenTrees::GenStructures(
int NumTrees = GetNumTrees(BaseX, BaseZ, Biomes);
sSetBlockVector OutsideLogs, OutsideOther;
for (int i = 0; i < NumTrees; i++)
{
GenerateSingleTree(BaseX, BaseZ, i, *BlT, *BlM, *Hei, Biomes, Outside);
GenerateSingleTree(BaseX, BaseZ, i, *BlT, *BlM, *Hei, Biomes, OutsideLogs, OutsideOther);
}
// Integrate blocks in Outside into chunk:
for (sSetBlockVector::const_iterator itr = Outside.begin(); itr != Outside.end(); ++itr)
{
if ((itr->ChunkX != a_ChunkX) || (itr->ChunkZ != a_ChunkZ))
{
continue;
}
switch (cChunkDef::GetBlock(a_BlockTypes, itr->x, itr->y, itr->z))
{
CASE_TREE_OVERWRITTEN_BLOCKS:
{
cChunkDef::SetBlock (a_BlockTypes, itr->x, itr->y, itr->z, itr->BlockType);
cChunkDef::SetNibble(a_BlockMetas, itr->x, itr->y, itr->z, itr->BlockMeta);
break;
}
} // switch (GetBlock())
} // for itr - Outside[]
sSetBlockVector IgnoredOverflow;
IgnoredOverflow.reserve(OutsideOther.size());
ApplyTreeImage(a_ChunkX, a_ChunkZ, a_BlockTypes, a_BlockMetas, OutsideOther, IgnoredOverflow);
IgnoredOverflow.clear();
IgnoredOverflow.reserve(OutsideLogs.size());
ApplyTreeImage(a_ChunkX, a_ChunkZ, a_BlockTypes, a_BlockMetas, OutsideLogs, IgnoredOverflow);
} // for z
} // for x
@@ -156,13 +154,14 @@ void cStructGenTrees::GenerateSingleTree(
cChunkDef::BlockNibbles & a_BlockMetas,
const cChunkDef::HeightMap & a_Height,
const cChunkDef::BiomeMap & a_Biomes,
sSetBlockVector & a_Blocks
sSetBlockVector & a_OutsideLogs,
sSetBlockVector & a_OutsideOther
)
{
int x = m_Noise.IntNoise3DInt(a_ChunkX + a_ChunkZ, a_ChunkZ, a_Seq) % cChunkDef::Width;
int z = m_Noise.IntNoise3DInt(a_ChunkX - a_ChunkZ, a_Seq, a_ChunkZ) % cChunkDef::Width;
int x = (m_Noise.IntNoise3DInt(a_ChunkX + a_ChunkZ, a_ChunkZ, a_Seq) / 19) % cChunkDef::Width;
int z = (m_Noise.IntNoise3DInt(a_ChunkX - a_ChunkZ, a_Seq, a_ChunkZ) / 19) % cChunkDef::Width;
int Height = a_Height[x + cChunkDef::Width * z];
int Height = cChunkDef::GetHeight(a_Height, x, z);
if ((Height <= 0) || (Height > 240))
{
@@ -176,15 +175,20 @@ void cStructGenTrees::GenerateSingleTree(
return;
}
sSetBlockVector TreeBlocks;
GetTreeImageByBiome(a_ChunkX * cChunkDef::Width + x, Height + 1, a_ChunkZ * cChunkDef::Width + z, m_Noise, a_Seq, a_Biomes[x + cChunkDef::Width * z], TreeBlocks);
sSetBlockVector TreeLogs, TreeOther;
GetTreeImageByBiome(
a_ChunkX * cChunkDef::Width + x, Height + 1, a_ChunkZ * cChunkDef::Width + z,
m_Noise, a_Seq,
cChunkDef::GetBiome(a_Biomes, x, z),
TreeLogs, TreeOther
);
// Check if the generated image fits the terrain:
for (sSetBlockVector::const_iterator itr = TreeBlocks.begin(); itr != TreeBlocks.end(); ++itr)
// Check if the generated image fits the terrain. Only the logs are checked:
for (sSetBlockVector::const_iterator itr = TreeLogs.begin(); itr != TreeLogs.end(); ++itr)
{
if ((itr->ChunkX != a_ChunkX) || (itr->ChunkZ != a_ChunkZ) || (itr->BlockType != E_BLOCK_LOG))
if ((itr->ChunkX != a_ChunkX) || (itr->ChunkZ != a_ChunkZ))
{
// Outside the chunk, or not a log (we don't check non-logs)
// Outside the chunk
continue;
}
@@ -203,50 +207,52 @@ void cStructGenTrees::GenerateSingleTree(
}
}
ApplyTreeImage(a_ChunkX, a_ChunkZ, a_BlockTypes, a_BlockMetas, TreeOther, a_OutsideOther);
ApplyTreeImage(a_ChunkX, a_ChunkZ, a_BlockTypes, a_BlockMetas, TreeLogs, a_OutsideLogs);
}
void cStructGenTrees::ApplyTreeImage(
int a_ChunkX, int a_ChunkZ,
cChunkDef::BlockTypes & a_BlockTypes,
cChunkDef::BlockNibbles & a_BlockMetas,
const sSetBlockVector & a_Image,
sSetBlockVector & a_Overflow
)
{
// Put the generated image into a_BlockTypes, push things outside this chunk into a_Blocks
for (sSetBlockVector::const_iterator itr = TreeBlocks.begin(); itr != TreeBlocks.end(); ++itr)
for (sSetBlockVector::const_iterator itr = a_Image.begin(); itr != a_Image.end(); ++itr)
{
if ((itr->ChunkX == a_ChunkX) && (itr->ChunkZ == a_ChunkZ))
{
// Inside this chunk, integrate into a_BlockTypes:
switch (cChunkDef::GetBlock(a_BlockTypes, itr->x, itr->y, itr->z))
{
case E_BLOCK_LEAVES:
{
if (itr->BlockType != E_BLOCK_LOG)
{
break;
}
// fallthrough:
}
CASE_TREE_OVERWRITTEN_BLOCKS:
{
cChunkDef::SetBlock (a_BlockTypes, itr->x, itr->y, itr->z, itr->BlockType);
cChunkDef::SetNibble(a_BlockMetas, itr->x, itr->y, itr->z, itr->BlockMeta);
break;
}
} // switch (GetBlock())
continue;
}
// Outside the chunk, push into a_Blocks; check if already present there:
bool Found = false;
for (sSetBlockVector::iterator itrB = a_Blocks.begin(); itrB != a_Blocks.end(); ++itrB)
{
if (
(itr->ChunkX == itrB->ChunkX) &&
(itr->ChunkZ == itrB->ChunkZ) &&
(itr->x == itrB->x) &&
(itr->y == itrB->y) &&
(itr->z == itrB->z)
)
{
// Same coords already found in a_Blocks, overwrite with wood, if requested:
if (itr->BlockType == E_BLOCK_LOG)
{
itrB->BlockType = itr->BlockType;
itrB->BlockMeta = itr->BlockMeta;
}
Found = true;
break;
}
} // for itrB - a_Blocks[]
if (!Found)
{
a_Blocks.push_back(*itr);
}
// Outside the chunk, push into a_Overflow.
// Don't check if already present there, by separating logs and others we don't need the checks anymore:
a_Overflow.push_back(*itr);
}
}