// NetherFortGen.cpp
// Implements the cNetherFortGen class representing the nether fortress generator
#include "Globals.h"
#include "NetherFortGen.h"
#include "Prefabs/NetherFortPrefabs.h"
static const int NEIGHBORHOOD_SIZE = 3;
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cNetherFortGen::cNetherFort:
class cNetherFortGen::cNetherFort
{
public:
cNetherFortGen & m_ParentGen;
int m_BlockX, m_BlockZ;
int m_GridSize;
int m_Seed;
cPlacedPieces m_Pieces;
cNetherFort(cNetherFortGen & a_ParentGen, int a_BlockX, int a_BlockZ, int a_GridSize, int a_MaxDepth, int a_Seed) :
m_ParentGen(a_ParentGen),
m_BlockX(a_BlockX),
m_BlockZ(a_BlockZ),
m_GridSize(a_GridSize),
m_Seed(a_Seed)
{
// TODO: Proper Y-coord placement
int BlockY = 64;
// Generate pieces:
for (int i = 0; m_Pieces.size() < (size_t)(a_MaxDepth * a_MaxDepth / 8 + a_MaxDepth); i++)
{
cBFSPieceGenerator pg(m_ParentGen, a_Seed + i);
pg.PlacePieces(a_BlockX, BlockY, a_BlockZ, a_MaxDepth, m_Pieces);
}
}
~cNetherFort()
{
cPieceGenerator::FreePieces(m_Pieces);
}
/** Carves the system into the chunk data */
void ProcessChunk(cChunkDesc & a_Chunk)
{
for (cPlacedPieces::const_iterator itr = m_Pieces.begin(), end = m_Pieces.end(); itr != end; ++itr)
{
const cPrefab & Prefab = (const cPrefab &)((*itr)->GetPiece());
Prefab.Draw(a_Chunk, *itr);
} // for itr - m_PlacedPieces[]
}
};
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Performance test of the NetherFort generator:
/*
#include "OSSupport/Timer.h"
static class cNetherFortPerfTest
{
public:
cNetherFortPerfTest(void)
{
cTimer Timer;
long long StartTime = Timer.GetNowTime();
const int GridSize = 512;
const int MaxDepth = 12;
const int NumIterations = 100;
for (int i = 0; i < NumIterations; i++)
{
cNetherFortGen FortGen(i, GridSize, MaxDepth);
delete new cNetherFortGen::cNetherFort(FortGen, 0, 0, GridSize, MaxDepth, i);
}
long long EndTime = Timer.GetNowTime();
printf("%d forts took %lld msec (%f sec) to generate\n", NumIterations, EndTime - StartTime, ((double)(EndTime - StartTime)) / 1000);
exit(0);
}
} g_PerfTest;
//*/
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// cNetherFortGen:
cNetherFortGen::cNetherFortGen(int a_Seed, int a_GridSize, int a_MaxDepth) :
m_Seed(a_Seed),
m_Noise(a_Seed),
m_GridSize(a_GridSize),
m_MaxDepth(a_MaxDepth)
{
// Initialize the prefabs:
for (size_t i = 0; i < g_NetherFortPrefabsCount; i++)
{
cPrefab * Prefab = new cPrefab(g_NetherFortPrefabs[i]);
m_AllPieces.push_back(Prefab);
if (Prefab->HasConnectorType(0))
{
m_OuterPieces.push_back(Prefab);
}
if (Prefab->HasConnectorType(1))
{
m_InnerPieces.push_back(Prefab);
}
}
// Initialize the starting piece prefabs:
for (size_t i = 0; i < g_NetherFortStartingPrefabsCount; i++)
{
m_StartingPieces.push_back(new cPrefab(g_NetherFortStartingPrefabs[i]));
}
/*
// DEBUG: Try one round of placement:
cPlacedPieces Pieces;
cBFSPieceGenerator pg(*this, a_Seed);
pg.PlacePieces(0, 64, 0, a_MaxDepth, Pieces);
*/
}
cNetherFortGen::~cNetherFortGen()
{
ClearCache();
for (cPieces::iterator itr = m_AllPieces.begin(), end = m_AllPieces.end(); itr != end; ++itr)
{
delete *itr;
} // for itr - m_AllPieces[]
m_AllPieces.clear();
}
void cNetherFortGen::ClearCache(void)
{
// TODO
}
void cNetherFortGen::GetFortsForChunk(int a_ChunkX, int a_ChunkZ, cNetherForts & a_Forts)
{
int BaseX = a_ChunkX * cChunkDef::Width / m_GridSize;
int BaseZ = a_ChunkZ * cChunkDef::Width / m_GridSize;
if (BaseX < 0)
{
--BaseX;
}
if (BaseZ < 0)
{
--BaseZ;
}
BaseX -= NEIGHBORHOOD_SIZE / 2;
BaseZ -= NEIGHBORHOOD_SIZE / 2;
// Walk the cache, move each cave system that we want into a_Forts:
int StartX = BaseX * m_GridSize;
int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_GridSize;
int StartZ = BaseZ * m_GridSize;
int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_GridSize;
for (cNetherForts::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
{
if (
((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
)
{
// want
a_Forts.push_back(*itr);
itr = m_Cache.erase(itr);
}
else
{
// don't want
++itr;
}
} // for itr - m_Cache[]
// Create those forts that haven't been in the cache:
for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
{
int RealX = (BaseX + x) * m_GridSize;
for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
{
int RealZ = (BaseZ + z) * m_GridSize;
bool Found = false;
for (cNetherForts::const_iterator itr = a_Forts.begin(), end = a_Forts.end(); itr != end; ++itr)
{
if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
{
Found = true;
break;
}
} // for itr - a_Mineshafts
if (!Found)
{
a_Forts.push_back(new cNetherFort(*this, RealX, RealZ, m_GridSize, m_MaxDepth, m_Seed));
}
} // for z
} // for x
// Copy a_Forts into m_Cache to the beginning:
cNetherForts FortsCopy (a_Forts);
m_Cache.splice(m_Cache.begin(), FortsCopy, FortsCopy.begin(), FortsCopy.end());
// Trim the cache if it's too long:
if (m_Cache.size() > 100)
{
cNetherForts::iterator itr = m_Cache.begin();
std::advance(itr, 100);
for (cNetherForts::iterator end = m_Cache.end(); itr != end; ++itr)
{
delete *itr;
}
itr = m_Cache.begin();
std::advance(itr, 100);
m_Cache.erase(itr, m_Cache.end());
}
}
void cNetherFortGen::GenFinish(cChunkDesc & a_ChunkDesc)
{
int ChunkX = a_ChunkDesc.GetChunkX();
int ChunkZ = a_ChunkDesc.GetChunkZ();
cNetherForts Forts;
GetFortsForChunk(ChunkX, ChunkZ, Forts);
for (cNetherForts::const_iterator itr = Forts.begin(); itr != Forts.end(); ++itr)
{
(*itr)->ProcessChunk(a_ChunkDesc);
} // for itr - Forts[]
}
cPieces cNetherFortGen::GetPiecesWithConnector(int a_ConnectorType)
{
switch (a_ConnectorType)
{
case 0: return m_OuterPieces;
case 1: return m_InnerPieces;
default: return cPieces();
}
}
cPieces cNetherFortGen::GetStartingPieces(void)
{
return m_StartingPieces;
}
int cNetherFortGen::GetPieceWeight(const cPlacedPiece & a_PlacedPiece, const cPiece::cConnector & a_ExistingConnector, const cPiece & a_NewPiece)
{
return ((const cPrefab &)a_NewPiece).GetPieceWeight(a_PlacedPiece, a_ExistingConnector);
}
void cNetherFortGen::PiecePlaced(const cPiece & a_Piece)
{
UNUSED(a_Piece);
}
void cNetherFortGen::Reset(void)
{
// Nothing needed
}
