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-rw-r--r--source/Generating/HeiGen.cpp390
1 files changed, 0 insertions, 390 deletions
diff --git a/source/Generating/HeiGen.cpp b/source/Generating/HeiGen.cpp
deleted file mode 100644
index 5dee181b7..000000000
--- a/source/Generating/HeiGen.cpp
+++ /dev/null
@@ -1,390 +0,0 @@
-
-// HeiGen.cpp
-
-// Implements the various terrain height generators
-
-#include "Globals.h"
-#include "HeiGen.h"
-#include "../LinearUpscale.h"
-#include "../../iniFile/iniFile.h"
-
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cHeiGenFlat:
-
-void cHeiGenFlat::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- for (int i = 0; i < ARRAYCOUNT(a_HeightMap); i++)
- {
- a_HeightMap[i] = m_Height;
- }
-}
-
-
-
-
-
-void cHeiGenFlat::InitializeHeightGen(cIniFile & a_IniFile)
-{
- m_Height = a_IniFile.GetValueSetI("Generator", "FlatHeight", m_Height);
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cHeiGenCache:
-
-cHeiGenCache::cHeiGenCache(cTerrainHeightGen & a_HeiGenToCache, int a_CacheSize) :
- m_HeiGenToCache(a_HeiGenToCache),
- m_CacheSize(a_CacheSize),
- m_CacheOrder(new int[a_CacheSize]),
- m_CacheData(new sCacheData[a_CacheSize]),
- m_NumHits(0),
- m_NumMisses(0),
- m_TotalChain(0)
-{
- for (int i = 0; i < m_CacheSize; i++)
- {
- m_CacheOrder[i] = i;
- m_CacheData[i].m_ChunkX = 0x7fffffff;
- m_CacheData[i].m_ChunkZ = 0x7fffffff;
- }
-}
-
-
-
-
-
-cHeiGenCache::~cHeiGenCache()
-{
- delete[] m_CacheData;
- delete[] m_CacheOrder;
-}
-
-
-
-
-
-void cHeiGenCache::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- /*
- if (((m_NumHits + m_NumMisses) % 1024) == 10)
- {
- LOGD("HeiGenCache: %d hits, %d misses, saved %.2f %%", m_NumHits, m_NumMisses, 100.0 * m_NumHits / (m_NumHits + m_NumMisses));
- LOGD("HeiGenCache: Avg cache chain length: %.2f", (float)m_TotalChain / m_NumHits);
- }
- //*/
-
- for (int i = 0; i < m_CacheSize; i++)
- {
- if (
- (m_CacheData[m_CacheOrder[i]].m_ChunkX != a_ChunkX) ||
- (m_CacheData[m_CacheOrder[i]].m_ChunkZ != a_ChunkZ)
- )
- {
- continue;
- }
- // Found it in the cache
- int Idx = m_CacheOrder[i];
-
- // Move to front:
- for (int j = i; j > 0; j--)
- {
- m_CacheOrder[j] = m_CacheOrder[j - 1];
- }
- m_CacheOrder[0] = Idx;
-
- // Use the cached data:
- memcpy(a_HeightMap, m_CacheData[Idx].m_HeightMap, sizeof(a_HeightMap));
-
- m_NumHits++;
- m_TotalChain += i;
- return;
- } // for i - cache
-
- // Not in the cache:
- m_NumMisses++;
- m_HeiGenToCache.GenHeightMap(a_ChunkX, a_ChunkZ, a_HeightMap);
-
- // Insert it as the first item in the MRU order:
- int Idx = m_CacheOrder[m_CacheSize - 1];
- for (int i = m_CacheSize - 1; i > 0; i--)
- {
- m_CacheOrder[i] = m_CacheOrder[i - 1];
- } // for i - m_CacheOrder[]
- m_CacheOrder[0] = Idx;
- memcpy(m_CacheData[Idx].m_HeightMap, a_HeightMap, sizeof(a_HeightMap));
- m_CacheData[Idx].m_ChunkX = a_ChunkX;
- m_CacheData[Idx].m_ChunkZ = a_ChunkZ;
-}
-
-
-
-
-
-void cHeiGenCache::InitializeHeightGen(cIniFile & a_IniFile)
-{
- m_HeiGenToCache.InitializeHeightGen(a_IniFile);
-}
-
-
-
-
-
-bool cHeiGenCache::GetHeightAt(int a_ChunkX, int a_ChunkZ, int a_RelX, int a_RelZ, HEIGHTTYPE & a_Height)
-{
- for (int i = 0; i < m_CacheSize; i++)
- {
- if ((m_CacheData[i].m_ChunkX == a_ChunkX) && (m_CacheData[i].m_ChunkZ == a_ChunkZ))
- {
- a_Height = cChunkDef::GetHeight(m_CacheData[i].m_HeightMap, a_RelX, a_RelZ);
- return true;
- }
- } // for i - m_CacheData[]
- return false;
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cHeiGenClassic:
-
-cHeiGenClassic::cHeiGenClassic(int a_Seed) :
- m_Seed(a_Seed),
- m_Noise(a_Seed)
-{
-}
-
-
-
-
-
-float cHeiGenClassic::GetNoise(float x, float y)
-{
- float oct1 = m_Noise.CubicNoise2D(x * m_HeightFreq1, y * m_HeightFreq1) * m_HeightAmp1;
- float oct2 = m_Noise.CubicNoise2D(x * m_HeightFreq2, y * m_HeightFreq2) * m_HeightAmp2;
- float oct3 = m_Noise.CubicNoise2D(x * m_HeightFreq3, y * m_HeightFreq3) * m_HeightAmp3;
-
- float height = m_Noise.CubicNoise2D(x * 0.1f, y * 0.1f ) * 2;
-
- float flatness = ((m_Noise.CubicNoise2D(x * 0.5f, y * 0.5f) + 1.f) * 0.5f) * 1.1f; // 0 ... 1.5
- flatness *= flatness * flatness;
-
- return (oct1 + oct2 + oct3) * flatness + height;
-}
-
-
-
-
-
-void cHeiGenClassic::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- const float zz = (float)(a_ChunkZ * cChunkDef::Width + z);
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- const float xx = (float)(a_ChunkX * cChunkDef::Width + x);
-
- int hei = 64 + (int)(GetNoise(xx * 0.05f, zz * 0.05f) * 16);
- if (hei < 10)
- {
- hei = 10;
- }
- if (hei > 250)
- {
- hei = 250;
- }
- cChunkDef::SetHeight(a_HeightMap, x , z, hei);
- } // for x
- } // for z
-}
-
-
-
-
-
-void cHeiGenClassic::InitializeHeightGen(cIniFile & a_IniFile)
-{
- m_HeightFreq1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq1", 0.1);
- m_HeightFreq2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq2", 1.0);
- m_HeightFreq3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightFreq3", 2.0);
- m_HeightAmp1 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp1", 1.0);
- m_HeightAmp2 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp2", 0.5);
- m_HeightAmp3 = (float)a_IniFile.GetValueSetF("Generator", "ClassicHeightAmp3", 0.5);
-}
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
-// cHeiGenBiomal:
-
-const cHeiGenBiomal::sGenParam cHeiGenBiomal::m_GenParam[biNumBiomes] =
-{
- /* Fast-changing | Middle-changing | Slow-changing |*/
- /* Biome | Freq1 | Amp1 | Freq2 | Amp2 | Freq3 | Amp3 | BaseHeight */
- /* biOcean */ { 0.1f, 2.0f, 0.05f, 12.0f, 0.01f, 10.0f, 40},
- /* biPlains */ { 0.1f, 1.0f, 0.05f, 1.5f, 0.01f, 4.0f, 68},
- /* biDesert */ { 0.1f, 1.0f, 0.05f, 1.5f, 0.01f, 4.0f, 68},
- /* biExtremeHills */ { 0.2f, 4.0f, 0.05f, 20.0f, 0.01f, 16.0f, 100},
- /* biForest */ { 0.1f, 1.0f, 0.05f, 2.0f, 0.01f, 4.0f, 70},
- /* biTaiga */ { 0.1f, 1.0f, 0.05f, 2.0f, 0.01f, 4.0f, 70},
- /* biSwampland */ { 0.1f, 1.1f, 0.05f, 1.5f, 0.02f, 2.5f, 61.5},
- /* biRiver */ { 0.2f, 0.1f, 0.05f, 0.1f, 0.01f, 0.1f, 56},
- /* biNether */ { 0.1f, 0.0f, 0.01f, 0.0f, 0.01f, 0.0f, 0}, // Unused, but must be here due to indexing
- /* biSky */ { 0.1f, 0.0f, 0.01f, 0.0f, 0.01f, 0.0f, 0}, // Unused, but must be here due to indexing
- /* biFrozenOcean */ { 0.1f, 2.0f, 0.05f, 12.0f, 0.01f, 10.0f, 40},
- /* biFrozenRiver */ { 0.2f, 0.1f, 0.05f, 0.1f, 0.01f, 0.1f, 56},
- /* biIcePlains */ { 0.1f, 1.0f, 0.05f, 1.5f, 0.01f, 4.0f, 68},
- /* biIceMountains */ { 0.2f, 2.0f, 0.05f, 10.0f, 0.01f, 8.0f, 80},
- /* biMushroomIsland */ { 0.1f, 2.0f, 0.05f, 8.0f, 0.01f, 6.0f, 80},
- /* biMushroomShore */ { 0.1f, 1.0f, 0.05f, 2.0f, 0.01f, 4.0f, 64},
- /* biBeach */ { 0.1f, 0.5f, 0.05f, 1.0f, 0.01f, 1.0f, 64},
- /* biDesertHills */ { 0.2f, 2.0f, 0.05f, 5.0f, 0.01f, 4.0f, 75},
- /* biForestHills */ { 0.2f, 2.0f, 0.05f, 12.0f, 0.01f, 10.0f, 80},
- /* biTaigaHills */ { 0.2f, 2.0f, 0.05f, 12.0f, 0.01f, 10.0f, 80},
- /* biExtremeHillsEdge */ { 0.2f, 3.0f, 0.05f, 16.0f, 0.01f, 12.0f, 80},
- /* biJungle */ { 0.1f, 3.0f, 0.05f, 6.0f, 0.01f, 6.0f, 70},
- /* biJungleHills */ { 0.2f, 3.0f, 0.05f, 12.0f, 0.01f, 10.0f, 80},
-} ;
-
-
-
-
-
-void cHeiGenBiomal::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap)
-{
- // Generate a 3x3 chunk area of biomes around this chunk:
- BiomeNeighbors Biomes;
- for (int z = -1; z <= 1; z++)
- {
- for (int x = -1; x <= 1; x++)
- {
- m_BiomeGen.GenBiomes(a_ChunkX + x, a_ChunkZ + z, Biomes[x + 1][z + 1]);
- } // for x
- } // for z
-
- /*
- _X 2013_04_22:
- There's no point in precalculating the entire perlin noise arrays, too many values are calculated uselessly,
- resulting in speed DEcrease.
- */
-
- //*
- // Linearly interpolate 4x4 blocks of heightmap:
- // Must be done on a floating point datatype, else the results are ugly!
- const int STEPZ = 4; // Must be a divisor of 16
- const int STEPX = 4; // Must be a divisor of 16
- NOISE_DATATYPE Height[17 * 17];
- for (int z = 0; z < 17; z += STEPZ)
- {
- for (int x = 0; x < 17; x += STEPX)
- {
- Height[x + 17 * z] = GetHeightAt(x, z, a_ChunkX, a_ChunkZ, Biomes);
- }
- }
- LinearUpscale2DArrayInPlace(Height, 17, 17, STEPX, STEPZ);
-
- // Copy into the heightmap
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, (int)Height[x + 17 * z]);
- }
- }
- //*/
-
- /*
- // For each height, go through neighboring biomes and add up their idea of height:
- for (int z = 0; z < cChunkDef::Width; z++)
- {
- for (int x = 0; x < cChunkDef::Width; x++)
- {
- cChunkDef::SetHeight(a_HeightMap, x, z, GetHeightAt(x, z, a_ChunkX, a_ChunkZ, Biomes));
- } // for x
- }
- //*/
-}
-
-
-
-
-
-void cHeiGenBiomal::InitializeHeightGen(cIniFile & a_IniFile)
-{
- // No user-settable params
-}
-
-
-
-
-
-NOISE_DATATYPE cHeiGenBiomal::GetHeightAt(int a_RelX, int a_RelZ, int a_ChunkX, int a_ChunkZ, const cHeiGenBiomal::BiomeNeighbors & a_BiomeNeighbors)
-{
- // Sum up how many biomes of each type there are in the neighborhood:
- int BiomeCounts[biNumBiomes];
- memset(BiomeCounts, 0, sizeof(BiomeCounts));
- int Sum = 0;
- for (int z = -8; z <= 8; z++)
- {
- int FinalZ = a_RelZ + z + cChunkDef::Width;
- int IdxZ = FinalZ / cChunkDef::Width;
- int ModZ = FinalZ % cChunkDef::Width;
- int WeightZ = 9 - abs(z);
- for (int x = -8; x <= 8; x++)
- {
- int FinalX = a_RelX + x + cChunkDef::Width;
- int IdxX = FinalX / cChunkDef::Width;
- int ModX = FinalX % cChunkDef::Width;
- EMCSBiome Biome = cChunkDef::GetBiome(a_BiomeNeighbors[IdxX][IdxZ], ModX, ModZ);
- if ((Biome < 0) || (Biome >= ARRAYCOUNT(BiomeCounts)))
- {
- continue;
- }
- int WeightX = 9 - abs(x);
- BiomeCounts[Biome] += WeightX + WeightZ;
- Sum += WeightX + WeightZ;
- } // for x
- } // for z
-
- // For each biome type that has a nonzero count, calc its height and add it:
- if (Sum > 0)
- {
- NOISE_DATATYPE Height = 0;
- int BlockX = a_ChunkX * cChunkDef::Width + a_RelX;
- int BlockZ = a_ChunkZ * cChunkDef::Width + a_RelZ;
- for (int i = 0; i < ARRAYCOUNT(BiomeCounts); i++)
- {
- if (BiomeCounts[i] == 0)
- {
- continue;
- }
- NOISE_DATATYPE oct1 = m_Noise.CubicNoise2D(BlockX * m_GenParam[i].m_HeightFreq1, BlockZ * m_GenParam[i].m_HeightFreq1) * m_GenParam[i].m_HeightAmp1;
- NOISE_DATATYPE oct2 = m_Noise.CubicNoise2D(BlockX * m_GenParam[i].m_HeightFreq2, BlockZ * m_GenParam[i].m_HeightFreq2) * m_GenParam[i].m_HeightAmp2;
- NOISE_DATATYPE oct3 = m_Noise.CubicNoise2D(BlockX * m_GenParam[i].m_HeightFreq3, BlockZ * m_GenParam[i].m_HeightFreq3) * m_GenParam[i].m_HeightAmp3;
- Height += BiomeCounts[i] * (m_GenParam[i].m_BaseHeight + oct1 + oct2 + oct3);
- }
- NOISE_DATATYPE res = Height / Sum;
- return std::min((NOISE_DATATYPE)250, std::max(res, (NOISE_DATATYPE)5));
- }
-
- // No known biome around? Weird. Return a bogus value:
- ASSERT(!"cHeiGenBiomal: Biome sum failed, no known biome around");
- return 5;
-}
-
-
-
-
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 10:19:36 +0100