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-rw-r--r--src/Generating/FinishGen.cpp367
1 files changed, 367 insertions, 0 deletions
diff --git a/src/Generating/FinishGen.cpp b/src/Generating/FinishGen.cpp
index 513c2bd49..8066a497e 100644
--- a/src/Generating/FinishGen.cpp
+++ b/src/Generating/FinishGen.cpp
@@ -1395,3 +1395,370 @@ eMonsterType cFinishGenPassiveMobs::GetRandomMob(cChunkDesc & a_ChunkDesc)
+
+////////////////////////////////////////////////////////////////////////////////
+// cFinishGenOres:
+
+void cFinishGenOres::GenFinish(cChunkDesc & a_ChunkDesc)
+{
+ int seq = 1;
+
+ // Generate the ores from the ore list.
+ for (const auto & ore: m_OreInfos)
+ {
+ GenerateOre(
+ a_ChunkDesc,
+ ore.m_BlockType, ore.m_BlockMeta,
+ ore.m_MaxHeight, ore.m_NumNests, ore.m_NestSize,
+ seq
+ );
+ seq++;
+ }
+}
+
+
+
+
+
+const cFinishGenOres::OreInfos & cFinishGenOres::DefaultOverworldOres(void)
+{
+ static OreInfos res
+ {
+ // OreType, OreMeta, MaxHeight, NumNests, NestSize
+ {E_BLOCK_COAL_ORE, 0, 127, 20, 16},
+ {E_BLOCK_IRON_ORE, 0, 64, 20, 8},
+ {E_BLOCK_GOLD_ORE, 0, 32, 2, 8},
+ {E_BLOCK_REDSTONE_ORE, 0, 16, 8, 7},
+ {E_BLOCK_DIAMOND_ORE, 0, 15, 1, 7},
+ {E_BLOCK_LAPIS_ORE, 0, 30, 1, 6},
+ };
+ return res;
+}
+
+
+
+
+
+const cFinishGenOres::OreInfos & cFinishGenOres::DefaultNetherOres(void)
+{
+ static OreInfos res;
+ if (res.empty())
+ {
+ // Hasn't been initialized yet, emplace the defaults:
+ // OreType, OreMeta, MaxHeight, NumNests, NestSize
+ res.emplace_back(E_BLOCK_NETHER_QUARTZ_ORE, 0, 127, 20, 8);
+ }
+ return res;
+}
+
+
+
+
+
+const cFinishGenOres::OreInfos & cFinishGenOres::DefaultNaturalPatches(void)
+{
+ static OreInfos res;
+ if (res.empty())
+ {
+ // Hasn't been initialized yet, emplace the defaults:
+ // OreType, OreMeta, MaxHeight, NumNests, NestSize
+ res.emplace_back(E_BLOCK_DIRT, 0, 127, 20, 32);
+ res.emplace_back(E_BLOCK_GRAVEL, 0, 127, 10, 32);
+ res.emplace_back(E_BLOCK_STONE, E_META_STONE_GRANITE, 127, 20, 32);
+ res.emplace_back(E_BLOCK_STONE, E_META_STONE_DIORITE, 127, 20, 32);
+ res.emplace_back(E_BLOCK_STONE, E_META_STONE_ANDESITE, 127, 20, 32);
+ }
+ return res;
+}
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cFinishGenOreNests:
+
+void cFinishGenOreNests::GenerateOre(
+ cChunkDesc & a_ChunkDesc,
+ BLOCKTYPE a_OreType, NIBBLETYPE a_OreMeta,
+ int a_MaxHeight, int a_NumNests, int a_NestSize,
+ int a_Seq
+)
+{
+ // This function generates several "nests" of ore, each nest consisting of number of ore blocks relatively adjacent to each other.
+ // It does so by making a random XYZ walk and adding ore along the way in cuboids of different (random) sizes
+ // Only "terraformable" blocks get replaced with ore, all other blocks stay (so the nest can actually be smaller than specified).
+
+ auto chunkX = a_ChunkDesc.GetChunkX();
+ auto chunkZ = a_ChunkDesc.GetChunkZ();
+ auto & blockTypes = a_ChunkDesc.GetBlockTypes();
+ auto & blockMetas = a_ChunkDesc.GetBlockMetasUncompressed();
+ for (int i = 0; i < a_NumNests; i++)
+ {
+ int nestRnd = m_Noise.IntNoise3DInt(chunkX + i, a_Seq, chunkZ + 64 * i) / 8;
+ int BaseX = nestRnd % cChunkDef::Width;
+ nestRnd /= cChunkDef::Width;
+ int BaseZ = nestRnd % cChunkDef::Width;
+ nestRnd /= cChunkDef::Width;
+ int BaseY = nestRnd % a_MaxHeight;
+ nestRnd /= a_MaxHeight;
+ int NestSize = a_NestSize + (nestRnd % (a_NestSize / 4)); // The actual nest size may be up to 1 / 4 larger
+ int Num = 0;
+ while (Num < NestSize)
+ {
+ // Put a cuboid around [BaseX, BaseY, BaseZ]
+ int rnd = m_Noise.IntNoise3DInt(chunkX + 64 * i, 2 * a_Seq + Num, chunkZ + 32 * i) / 8;
+ int xsize = rnd % 2;
+ int ysize = (rnd / 4) % 2;
+ int zsize = (rnd / 16) % 2;
+ rnd >>= 8;
+ for (int x = xsize; x >= 0; --x)
+ {
+ int BlockX = BaseX + x;
+ if (cChunkDef::IsValidWidth(BlockX))
+ {
+ Num++; // So that the cycle finishes even if the base coords wander away from the chunk
+ continue;
+ }
+ for (int y = ysize; y >= 0; --y)
+ {
+ int BlockY = BaseY + y;
+ if (!cChunkDef::IsValidHeight(BlockY))
+ {
+ Num++; // So that the cycle finishes even if the base coords wander away from the chunk
+ continue;
+ }
+ for (int z = zsize; z >= 0; --z)
+ {
+ int BlockZ = BaseZ + z;
+ if (cChunkDef::IsValidWidth(BlockZ))
+ {
+ Num++; // So that the cycle finishes even if the base coords wander away from the chunk
+ continue;
+ }
+
+ int Index = cChunkDef::MakeIndexNoCheck(BlockX, BlockY, BlockZ);
+ auto blockType = blockTypes[Index];
+ if ((blockType == E_BLOCK_STONE) || (blockType == E_BLOCK_NETHERRACK))
+ {
+ blockTypes[Index] = a_OreType;
+ blockMetas[Index] = a_OreMeta;
+ }
+ Num++;
+ } // for z
+ } // for y
+ } // for x
+
+ // Move the base to a neighbor voxel
+ switch (rnd % 4)
+ {
+ case 0: BaseX--; break;
+ case 1: BaseX++; break;
+ }
+ switch ((rnd >> 3) % 4)
+ {
+ case 0: BaseY--; break;
+ case 1: BaseY++; break;
+ }
+ switch ((rnd >> 6) % 4)
+ {
+ case 0: BaseZ--; break;
+ case 1: BaseZ++; break;
+ }
+ } // while (Num < NumBlocks)
+ } // for i - NumNests
+}
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cFinishGenOrePockets:
+
+bool cFinishGenOrePockets::Initialize(cIniFile & a_IniFile)
+{
+ // TODO
+ return true;
+}
+
+
+
+
+
+void cFinishGenOrePockets::GenerateOre(
+ cChunkDesc & a_ChunkDesc,
+ BLOCKTYPE a_OreType, NIBBLETYPE a_OreMeta,
+ int a_MaxHeight, int a_NumNests, int a_NestSize,
+ int a_Seq
+)
+{
+ // This function generates several "pockets" of the specified ore
+ // Each chunk can contain only pockets that are generated for that chunk, or for its XM / ZM neighbors.
+
+ // Generate for the 3 neighbors in the XP / ZP direction as well, so that pockets crossing the boundaries are accounted for as well:
+ int chunkZ = a_ChunkDesc.GetChunkZ();
+ int chunkX = a_ChunkDesc.GetChunkX();
+ imprintChunkOrePockets(chunkX - 1, chunkZ - 1, a_ChunkDesc, a_OreType, a_OreMeta, a_MaxHeight, a_NumNests, a_NestSize, a_Seq);
+ imprintChunkOrePockets(chunkX - 1, chunkZ, a_ChunkDesc, a_OreType, a_OreMeta, a_MaxHeight, a_NumNests, a_NestSize, a_Seq);
+ imprintChunkOrePockets(chunkX, chunkZ - 1, a_ChunkDesc, a_OreType, a_OreMeta, a_MaxHeight, a_NumNests, a_NestSize, a_Seq);
+ imprintChunkOrePockets(chunkX, chunkZ, a_ChunkDesc, a_OreType, a_OreMeta, a_MaxHeight, a_NumNests, a_NestSize, a_Seq);
+}
+
+
+
+
+
+void cFinishGenOrePockets::imprintChunkOrePockets(
+ int a_ChunkX, int a_ChunkZ,
+ cChunkDesc & a_ChunkDesc,
+ BLOCKTYPE a_OreType, NIBBLETYPE a_OreMeta,
+ int a_MaxHeight, int a_NumNests, int a_NestSize,
+ int a_Seq
+)
+{
+ // Pick a starting coord for each nest:
+ int baseBlockX = a_ChunkX * cChunkDef::Width;
+ int baseBlockZ = a_ChunkZ * cChunkDef::Width;
+ for (int i = 0; i < a_NumNests; i++)
+ {
+ int nestRnd = m_Noise.IntNoise3DInt(a_ChunkX + i, a_Seq, a_ChunkZ + 64 * i) / 7;
+ int baseX = (nestRnd % cChunkDef::Width) + baseBlockX;
+ nestRnd /= cChunkDef::Width;
+ int baseZ = (nestRnd % cChunkDef::Width) + baseBlockZ;
+ nestRnd /= cChunkDef::Width;
+ int baseY = nestRnd % a_MaxHeight;
+ nestRnd /= a_MaxHeight;
+ imprintPocket(
+ a_ChunkDesc,
+ baseX, baseY, baseZ,
+ a_NestSize, i + 200 * a_Seq,
+ a_OreType, a_OreMeta
+ );
+ } // for i - NumNests
+}
+
+
+
+
+
+void cFinishGenOrePockets::imprintPocket(
+ cChunkDesc & a_ChunkDesc,
+ int a_MinPocketX, int a_PocketY, int a_MinPocketZ,
+ int a_NestSize, int a_Seq,
+ BLOCKTYPE a_OreType, NIBBLETYPE a_OreMeta
+)
+{
+ // A line segment in a random direction is chosen. Then, several spheres are formed along this line segment,
+ // with their diameters diminishing towards the line ends (one half of a sinusoid)
+
+ double x1 = static_cast<double>(a_MinPocketX) + 0.5;
+ double y1 = static_cast<double>(a_PocketY) + 0.5;
+ double z1 = static_cast<double>(a_MinPocketZ) + 0.5;
+ int rnd = m_Noise.IntNoise2DInt(a_MinPocketX + 7 * a_Seq, a_MinPocketZ + a_PocketY * 11) / 7;
+ double angle = static_cast<double>(rnd % 256) / (256.0 * M_PI / 2.0); // range [0 .. pi / 2]
+ rnd /= 256;
+ double length = static_cast<double>(a_NestSize) / 4.0;
+ double x2 = x1 + sin(angle) * length; // Always larger than x1
+ double z2 = z1 + cos(angle) * length; // Always larger than z1
+ double y2 = y1 + static_cast<double>((rnd % 3) - 1); // Up to 1 block away from y1
+
+ // Iterate over the line segment in a total of a_NestSize steps:
+ double stepX = (x2 - x1) / static_cast<double>(a_NestSize);
+ double stepY = (y2 - y1) / static_cast<double>(a_NestSize);
+ double stepZ = (z2 - z1) / static_cast<double>(a_NestSize);
+ double stepR = M_PI / static_cast<double>(a_NestSize);
+ double size = static_cast<double>(a_NestSize) / 16.0;
+ for (int i = 0; i < a_NestSize; ++i)
+ {
+ double iDbl = static_cast<double>(i);
+ double sphereX = x1 + stepX * iDbl;
+ double sphereY = y1 + stepY * iDbl;
+ double sphereZ = z1 + stepZ * iDbl;
+ double radius = (sin(stepR * iDbl) + 1.0) * size + 1.0;
+ imprintSphere(a_ChunkDesc, sphereX, sphereY, sphereZ, radius, a_OreType, a_OreMeta);
+ } // for i
+}
+
+
+
+
+
+void cFinishGenOrePockets::imprintSphere(
+ cChunkDesc & a_ChunkDesc,
+ double a_SphereX, double a_SphereY, double a_SphereZ, double a_Radius,
+ BLOCKTYPE a_OreType, NIBBLETYPE a_OreMeta
+)
+{
+ // Get the sphere's bounding box, unioned with the chunk's bounding box (possibly empty):
+ int baseX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
+ int baseZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
+ int minX = std::max(FloorC(a_SphereX - a_Radius), baseX);
+ int minY = std::max(FloorC(a_SphereY - a_Radius), 0);
+ int minZ = std::max(FloorC(a_SphereZ - a_Radius), baseZ);
+ int maxX = std::min(CeilC(a_SphereX + a_Radius), baseX + cChunkDef::Width - 1);
+ int maxY = std::min(CeilC(a_SphereY + a_Radius), cChunkDef::Height - 1);
+ int maxZ = std::min(CeilC(a_SphereZ + a_Radius), baseZ + cChunkDef::Width - 1);
+
+ /*
+ // DEBUG:
+ int blockX = FloorC(a_SphereX);
+ int blockY = FloorC(a_SphereY);
+ int blockZ = FloorC(a_SphereZ);
+ if (
+ (blockX >= baseX) && (blockX < baseX + cChunkDef::Width) &&
+ (blockY >= 0) && (blockY < cChunkDef::Height) &&
+ (blockZ >= baseZ) && (blockZ < baseZ + cChunkDef::Width)
+ )
+ {
+ // LOGD("Imprinting a sphere center at {%d, %d, %d}", blockX, blockY, blockZ);
+ a_ChunkDesc.SetBlockTypeMeta(blockX - baseX, blockY, blockZ - baseZ, a_OreType, a_OreMeta);
+ }
+ return;
+ //*/
+
+ // Imprint the parts of the sphere intersecting the chunk:
+ double radiusSq = a_Radius * a_Radius / 4.0;
+ for (int y = minY; y <= maxY; y++)
+ {
+ double relY = static_cast<double>(y) + 0.5 - a_SphereY;
+ double relYSq = relY * relY;
+ if (relYSq > radiusSq)
+ {
+ // outside the sphere, bail out
+ continue;
+ }
+ for (int z = minZ; z <= maxZ; z++)
+ {
+ double relZ = static_cast<double>(z) + 0.5 - a_SphereZ;
+ double relZSq = relZ * relZ;
+ if (relZSq + relYSq > radiusSq)
+ {
+ // outside the sphere, bail out
+ continue;
+ }
+ for (int x = minX; x <= maxX; x++)
+ {
+ double relX = static_cast<double>(x) + 0.5 - a_SphereX;
+ double relXSq = relX * relX;
+ if (relZSq + relYSq + relXSq > radiusSq)
+ {
+ // outside the sphere, bail out
+ continue;
+ }
+ int bX = x - baseX;
+ int bZ = z - baseZ;
+ auto blockType = a_ChunkDesc.GetBlockType(bX, y, bZ);
+ if ((blockType == E_BLOCK_STONE) || (blockType == E_BLOCK_NETHERRACK))
+ {
+ a_ChunkDesc.SetBlockTypeMeta(bX, y, bZ, a_OreType, a_OreMeta);
+ }
+ } // for x
+ } // for z
+ } // for y
+}
+
+
+
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 13:30:32 +0100