From 1ff1a93866ab81e3868588a256f446a902a1a8c4 Mon Sep 17 00:00:00 2001 From: madmaxoft Date: Tue, 10 Jun 2014 22:59:45 +0200 Subject: [PATCH] Initial Mesa Bryce implementation. --- src/Generating/DistortedHeightmap.cpp | 4 +- src/Generating/DistortedHeightmap.h | 6 +- src/Generating/HeiGen.cpp | 89 +++++++++++++++++++++++++++ src/Generating/HeiGen.h | 21 +++++++ 4 files changed, 116 insertions(+), 4 deletions(-) diff --git a/src/Generating/DistortedHeightmap.cpp b/src/Generating/DistortedHeightmap.cpp index eb9fe92ba..e50f36d57 100644 --- a/src/Generating/DistortedHeightmap.cpp +++ b/src/Generating/DistortedHeightmap.cpp @@ -282,7 +282,7 @@ cDistortedHeightmap::cDistortedHeightmap(int a_Seed, cBiomeGen & a_BiomeGen) : m_OceanFloorSelect(a_Seed + 3000), m_MesaFloor(a_Seed + 4000), m_BiomeGen(a_BiomeGen), - m_UnderlyingHeiGen(a_Seed, a_BiomeGen), + m_UnderlyingHeiGen(a_Seed), m_HeightGen(m_UnderlyingHeiGen, 64), m_IsInitialized(false) { @@ -308,6 +308,8 @@ void cDistortedHeightmap::Initialize(cIniFile & a_IniFile) return; } + ((cTerrainHeightGen &)m_UnderlyingHeiGen).InitializeHeightGen(a_IniFile); + // Read the params from the INI file: m_SeaLevel = a_IniFile.GetValueSetI("Generator", "DistortedHeightmapSeaLevel", 62); m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "DistortedHeightmapFrequencyX", 10); diff --git a/src/Generating/DistortedHeightmap.h b/src/Generating/DistortedHeightmap.h index e6b3c9d3f..31fb17df2 100644 --- a/src/Generating/DistortedHeightmap.h +++ b/src/Generating/DistortedHeightmap.h @@ -64,9 +64,9 @@ protected: int m_CurChunkZ; NOISE_DATATYPE m_DistortedHeightmap[17 * 257 * 17]; - cBiomeGen & m_BiomeGen; - cHeiGenBiomal m_UnderlyingHeiGen; // This generator provides us with base heightmap (before distortion) - cHeiGenCache m_HeightGen; // Cache above m_UnderlyingHeiGen + cBiomeGen & m_BiomeGen; + cHeiGenMesaBryce m_UnderlyingHeiGen; // This generator provides us with base heightmap (before distortion) + cHeiGenCache m_HeightGen; // Cache above m_UnderlyingHeiGen /// Heightmap for the current chunk, before distortion (from m_HeightGen). Used for optimization. cChunkDef::HeightMap m_CurChunkHeights; diff --git a/src/Generating/HeiGen.cpp b/src/Generating/HeiGen.cpp index 25ac912fd..dedf3fe3f 100644 --- a/src/Generating/HeiGen.cpp +++ b/src/Generating/HeiGen.cpp @@ -47,6 +47,10 @@ cTerrainHeightGen * cTerrainHeightGen::CreateHeightGen(cIniFile &a_IniFile, cBio { res = new cEndGen(a_Seed); } + else if (NoCaseCompare(HeightGenName, "MesaBryce") == 0) + { + res = new cHeiGenMesaBryce(a_Seed); + } else if (NoCaseCompare(HeightGenName, "Mountains") == 0) { res = new cHeiGenMountains(a_Seed); @@ -366,6 +370,91 @@ void cHeiGenMountains::InitializeHeightGen(cIniFile & a_IniFile) +/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// +// cHeiGenMesaBryce: + +cHeiGenMesaBryce::cHeiGenMesaBryce(int a_Seed) : + m_Seed(a_Seed), + m_PerlinHFHA(a_Seed), + m_PerlinLFLA(a_Seed + 10) +{ +} + + + + + +void cHeiGenMesaBryce::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) +{ + NOISE_DATATYPE StartX = (NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width); + NOISE_DATATYPE EndX = (NOISE_DATATYPE)(a_ChunkX * cChunkDef::Width + cChunkDef::Width - 1); + NOISE_DATATYPE StartZ = (NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width); + NOISE_DATATYPE EndZ = (NOISE_DATATYPE)(a_ChunkZ * cChunkDef::Width + cChunkDef::Width - 1); + NOISE_DATATYPE Workspace[16 * 16]; + NOISE_DATATYPE Noise1[16 * 16]; + NOISE_DATATYPE Noise2[16 * 16]; + NOISE_DATATYPE Noise3[16 * 16]; + m_PerlinHFHA.Generate2D(Noise1, 16, 16, StartX, EndX, StartZ, EndZ, Workspace); + m_PerlinLFLA.Generate2D(Noise2, 16, 16, StartX, EndX, StartZ, EndZ, Workspace); + m_PerlinTops.Generate2D(Noise3, 16, 16, StartX, EndX, StartZ, EndZ, Workspace); + for (int z = 0; z < cChunkDef::Width; z++) + { + int IdxZ = z * cChunkDef::Width; + for (int x = 0; x < cChunkDef::Width; x++) + { + int idx = IdxZ + x; + // int hei = 70 + (int)(std::min(Noise1[idx], Noise2[idx]) * 15); + int hei; + if (Noise1[idx] > 1.5f) + { + hei = 83 + (int)floor(Noise3[idx]); + } + else + { + hei = 63 + (int)floor(Noise2[idx]); + } + /* + NOISE_DATATYPE v1 = sqrt(sqrt(std::max(Noise1[idx], (NOISE_DATATYPE)0))) - 50; + int hei = 60 + (int)floor(std::max(v1, 5 + Noise2[idx])); + */ + if (hei < 10) + { + hei = 10; + } + if (hei > 250) + { + hei = 250; + } + cChunkDef::SetHeight(a_HeightMap, x , z, hei); + } // for x + } // for z +} + + + + + +void cHeiGenMesaBryce::InitializeHeightGen(cIniFile & a_IniFile) +{ + // TODO: Read the params from an INI file + // m_PerlinHFHA.AddOctave(0.32f, 0.1); + /* + m_PerlinHFHA.AddOctave(0.13f, 17800000); + m_PerlinHFHA.AddOctave(0.12f, 19000000); + */ + m_PerlinHFHA.AddOctave(0.13f, 2); + m_PerlinHFHA.AddOctave(0.12f, 2); + + m_PerlinLFLA.AddOctave(0.04f, 1); + m_PerlinLFLA.AddOctave(0.02f, 2); + + m_PerlinTops.AddOctave(0.1f, 8); +} + + + + + /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // cHeiGenBiomal: diff --git a/src/Generating/HeiGen.h b/src/Generating/HeiGen.h index 5c106c7d9..5fc4f4abc 100644 --- a/src/Generating/HeiGen.h +++ b/src/Generating/HeiGen.h @@ -127,6 +127,27 @@ protected: +class cHeiGenMesaBryce : + public cTerrainHeightGen +{ +public: + cHeiGenMesaBryce(int a_Seed); + +protected: + int m_Seed; + cPerlinNoise m_PerlinHFHA; // HighFrequencyHighAmplitude, for the hills + cPerlinNoise m_PerlinLFLA; // LowFrequencyLowAmplitude, for the floor + cPerlinNoise m_PerlinTops; + + // cTerrainHeightGen overrides: + virtual void GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) override; + virtual void InitializeHeightGen(cIniFile & a_IniFile) override; +} ; + + + + + class cHeiGenBiomal : public cTerrainHeightGen {