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author | Mattes D <github@xoft.cz> | 2013-11-27 09:23:17 +0100 |
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committer | Mattes D <github@xoft.cz> | 2013-11-27 09:23:17 +0100 |
commit | 49760db89d94ede5d123d927141a6cd60dbaaf07 (patch) | |
tree | 6c6cf99e4cf3128311a93cd187947b502f3732a0 /source/Generating/HeiGen.cpp | |
parent | cWorld::SpawnExperienceOrb() now returns the entity ID of the spawned orb. (diff) | |
parent | Fixed VC2008 compilation, normalized include paths. (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | source/Generating/HeiGen.cpp | 390 |
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; -} - - - - - |