From d43026ddc28829310ba6baf607adce1f54b4f323 Mon Sep 17 00:00:00 2001 From: "madmaxoft@gmail.com" Date: Tue, 19 Mar 2013 10:14:57 +0000 Subject: Lakes: added a limiter, better height distribution git-svn-id: http://mc-server.googlecode.com/svn/trunk@1287 0a769ca7-a7f5-676a-18bf-c427514a06d6 --- source/Generating/ComposableGenerator.cpp | 6 ++++-- source/Generating/StructGen.cpp | 21 ++++++++++++++------- source/Generating/StructGen.h | 6 ++++-- 3 files changed, 22 insertions(+), 11 deletions(-) diff --git a/source/Generating/ComposableGenerator.cpp b/source/Generating/ComposableGenerator.cpp index e349d73f7..6e72af302 100644 --- a/source/Generating/ComposableGenerator.cpp +++ b/source/Generating/ComposableGenerator.cpp @@ -335,11 +335,13 @@ void cComposableGenerator::InitStructureGens(cIniFile & a_IniFile) } else if (NoCaseCompare(*itr, "waterlakes") == 0) { - m_StructureGens.push_back(new cStructGenLakes(Seed * 3 + 652, E_BLOCK_STATIONARY_WATER, *m_HeightGen)); + int Probability = a_IniFile.GetValueSetI("Generator", "WaterLakesProbability", 25); + m_StructureGens.push_back(new cStructGenLakes(Seed * 3 + 652, E_BLOCK_STATIONARY_WATER, *m_HeightGen, Probability)); } else if (NoCaseCompare(*itr, "lavalakes") == 0) { - m_StructureGens.push_back(new cStructGenLakes(Seed * 5 + 16873, E_BLOCK_STATIONARY_LAVA, *m_HeightGen)); + int Probability = a_IniFile.GetValueSetI("Generator", "LavaLakesProbability", 10); + m_StructureGens.push_back(new cStructGenLakes(Seed * 5 + 16873, E_BLOCK_STATIONARY_LAVA, *m_HeightGen, Probability)); } else { diff --git a/source/Generating/StructGen.cpp b/source/Generating/StructGen.cpp index 6c5bf6491..583ee867a 100644 --- a/source/Generating/StructGen.cpp +++ b/source/Generating/StructGen.cpp @@ -400,6 +400,11 @@ void cStructGenLakes::GenStructures(cChunkDesc & a_ChunkDesc) for (int z = -1; z < 2; z++) for (int x = -1; x < 2; x++) { + if (((m_Noise.IntNoise2DInt(ChunkX + x, ChunkZ + z) / 17) % 100) > m_Probability) + { + continue; + } + cBlockArea Lake; CreateLakeImage(ChunkX + x, ChunkZ + z, Lake); @@ -420,19 +425,20 @@ void cStructGenLakes::CreateLakeImage(int a_ChunkX, int a_ChunkZ, cBlockArea & a a_Lake.Create(16, 8, 16); a_Lake.Fill(cBlockArea::baTypes, E_BLOCK_SPONGE); // Sponge is the NOP blocktype for lake merging strategy - // Find the maximum height in this chunk: + // Find the minimum height in this chunk: cChunkDef::HeightMap HeightMap; m_HeiGen.GenHeightMap(a_ChunkX, a_ChunkZ, HeightMap); - HEIGHTTYPE MaxHeight = HeightMap[0]; + HEIGHTTYPE MinHeight = HeightMap[0]; for (int i = 1; i < ARRAYCOUNT(HeightMap); i++) { - if (HeightMap[i] > MaxHeight) + if (HeightMap[i] < MinHeight) { - MaxHeight = HeightMap[i]; + MinHeight = HeightMap[i]; } } - // Make a random position in the chunk by using a random 16 block XZ offset and random height up to chunk's max height + // Make a random position in the chunk by using a random 16 block XZ offset and random height up to chunk's max height minus 6 + MinHeight = std::max(MinHeight - 6, 2); int Rnd = m_Noise.IntNoise3DInt(a_ChunkX, 128, a_ChunkZ) / 11; // Random offset [-8 .. 8], with higher probability around 0; add up four three-bit-wide randoms [0 .. 28], divide and subtract to get range int OffsetX = 4 * ((Rnd & 0x07) + ((Rnd & 0x38) >> 3) + ((Rnd & 0x1c0) >> 6) + ((Rnd & 0xe00) >> 9)) / 7 - 8; @@ -440,8 +446,9 @@ void cStructGenLakes::CreateLakeImage(int a_ChunkX, int a_ChunkZ, cBlockArea & a // Random offset [-8 .. 8], with higher probability around 0; add up four three-bit-wide randoms [0 .. 28], divide and subtract to get range int OffsetZ = 4 * ((Rnd & 0x07) + ((Rnd & 0x38) >> 3) + ((Rnd & 0x1c0) >> 6) + ((Rnd & 0xe00) >> 9)) / 7 - 8; Rnd = m_Noise.IntNoise3DInt(a_ChunkX, 512, a_ChunkZ) / 13; - // Random height [0 .. MaxHeight] with preference to center heights - int HeightY = (((Rnd & 0x1ff) % (MaxHeight + 1)) + (((Rnd >> 9) & 0x1ff) % (MaxHeight + 1))) / 2; + // Random height [1 .. MinHeight] with preference to center heights + int HeightY = 1 + (((Rnd & 0x1ff) % MinHeight) + (((Rnd >> 9) & 0x1ff) % MinHeight)) / 2; + a_Lake.SetOrigin(OffsetX, HeightY, OffsetZ); // Hollow out a few bubbles inside the blockarea: diff --git a/source/Generating/StructGen.h b/source/Generating/StructGen.h index ffb62e327..44f2fc213 100644 --- a/source/Generating/StructGen.h +++ b/source/Generating/StructGen.h @@ -96,11 +96,12 @@ class cStructGenLakes : public cStructureGen { public: - cStructGenLakes(int a_Seed, BLOCKTYPE a_Fluid, cTerrainHeightGen & a_HeiGen) : + cStructGenLakes(int a_Seed, BLOCKTYPE a_Fluid, cTerrainHeightGen & a_HeiGen, int a_Probability) : m_Noise(a_Seed), m_Seed(a_Seed), m_Fluid(a_Fluid), - m_HeiGen(a_HeiGen) + m_HeiGen(a_HeiGen), + m_Probability(a_Probability) { } @@ -109,6 +110,7 @@ protected: int m_Seed; BLOCKTYPE m_Fluid; cTerrainHeightGen & m_HeiGen; + int m_Probability; ///< Chance, 0 .. 100, of a chunk having the lake // cStructureGen override: virtual void GenStructures(cChunkDesc & a_ChunkDesc) override; -- cgit v1.2.3