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Diffstat (limited to 'source/Generating/EndGen.cpp')
| -rw-r--r-- | source/Generating/EndGen.cpp | 217 |
1 files changed, 0 insertions, 217 deletions
diff --git a/source/Generating/EndGen.cpp b/source/Generating/EndGen.cpp deleted file mode 100644 index 90a8071fa..000000000 --- a/source/Generating/EndGen.cpp +++ /dev/null @@ -1,217 +0,0 @@ - -// EndGen.cpp - -// Implements the cEndGen class representing the generator for the End, both as a HeightGen and CompositionGen - -#include "Globals.h" -#include "EndGen.h" -#include "../../iniFile/iniFile.h" -#include "../LinearUpscale.h" - - - - - -enum -{ - // Interpolation cell size: - INTERPOL_X = 4, - INTERPOL_Y = 4, - INTERPOL_Z = 4, - - // Size of chunk data, downscaled before interpolation: - DIM_X = 16 / INTERPOL_X + 1, - DIM_Y = 256 / INTERPOL_Y + 1, - DIM_Z = 16 / INTERPOL_Z + 1, -} ; - - - - - -/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// -// cEndGen: - -cEndGen::cEndGen(int a_Seed) : - m_Seed(a_Seed), - m_IslandSizeX(256), - m_IslandSizeY(96), - m_IslandSizeZ(256), - m_FrequencyX(80), - m_FrequencyY(80), - m_FrequencyZ(80) -{ - m_Perlin.AddOctave(1, 1); - m_Perlin.AddOctave(2, 0.5); - m_Perlin.AddOctave(4, 0.25); -} - - - - - -void cEndGen::Initialize(cIniFile & a_IniFile) -{ - m_IslandSizeX = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeX", m_IslandSizeX); - m_IslandSizeY = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeY", m_IslandSizeY); - m_IslandSizeZ = a_IniFile.GetValueSetI("Generator", "EndGenIslandSizeZ", m_IslandSizeZ); - - m_FrequencyX = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyX", m_FrequencyX); - m_FrequencyY = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyY", m_FrequencyY); - m_FrequencyZ = (NOISE_DATATYPE)a_IniFile.GetValueSetF("Generator", "EndGenFrequencyZ", m_FrequencyZ); - - // Recalculate the min and max chunk coords of the island - m_MaxChunkX = (m_IslandSizeX + cChunkDef::Width - 1) / cChunkDef::Width; - m_MinChunkX = -m_MaxChunkX; - m_MaxChunkZ = (m_IslandSizeZ + cChunkDef::Width - 1) / cChunkDef::Width; - m_MinChunkZ = -m_MaxChunkZ; -} - - - - - -/// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise array) -void cEndGen::PrepareState(int a_ChunkX, int a_ChunkZ) -{ - ASSERT(!IsChunkOutsideRange(a_ChunkX, a_ChunkZ)); // Should be filtered before calling this function - - if ((m_LastChunkX == a_ChunkX) && (m_LastChunkZ == a_ChunkZ)) - { - return; - } - - m_LastChunkX = a_ChunkX; - m_LastChunkZ = a_ChunkZ; - - GenerateNoiseArray(); -} - - - - - -/// Generates the m_NoiseArray array for the current chunk -void cEndGen::GenerateNoiseArray(void) -{ - NOISE_DATATYPE NoiseData[DIM_X * DIM_Y * DIM_Z]; // [x + DIM_X * z + DIM_X * DIM_Z * y] - NOISE_DATATYPE Workspace[DIM_X * DIM_Y * DIM_Z]; // [x + DIM_X * z + DIM_X * DIM_Z * y] - - // Generate the downscaled noise: - NOISE_DATATYPE StartX = ((NOISE_DATATYPE)(m_LastChunkX * cChunkDef::Width)) / m_FrequencyX; - NOISE_DATATYPE EndX = ((NOISE_DATATYPE)((m_LastChunkX + 1) * cChunkDef::Width)) / m_FrequencyX; - NOISE_DATATYPE StartZ = ((NOISE_DATATYPE)(m_LastChunkZ * cChunkDef::Width)) / m_FrequencyZ; - NOISE_DATATYPE EndZ = ((NOISE_DATATYPE)((m_LastChunkZ + 1) * cChunkDef::Width)) / m_FrequencyZ; - NOISE_DATATYPE StartY = 0; - NOISE_DATATYPE EndY = ((NOISE_DATATYPE)257) / m_FrequencyY; - m_Perlin.Generate3D(NoiseData, DIM_X, DIM_Z, DIM_Y, StartX, EndX, StartZ, EndZ, StartY, EndY, Workspace); - - // Add distance: - int idx = 0; - for (int y = 0; y < DIM_Y; y++) - { - NOISE_DATATYPE ValY = (NOISE_DATATYPE)(2 * INTERPOL_Y * y - m_IslandSizeY) / m_IslandSizeY; - ValY = ValY * ValY; - for (int z = 0; z < DIM_Z; z++) - { - NOISE_DATATYPE ValZ = (NOISE_DATATYPE)(m_LastChunkZ * cChunkDef::Width + (z * cChunkDef::Width / (DIM_Z - 1))) / m_IslandSizeZ; - ValZ = ValZ * ValZ; - for (int x = 0; x < DIM_X; x++) - { - // NOISE_DATATYPE ValX = StartX + (EndX - StartX) * x / (DIM_X - 1); - NOISE_DATATYPE ValX = (NOISE_DATATYPE)(m_LastChunkX * cChunkDef::Width + (x * cChunkDef::Width / (DIM_X - 1))) / m_IslandSizeX; - ValX = ValX * ValX; - NoiseData[idx++] += ValX + ValZ + ValY; - } // for x - } // for z - } // for y - - // Upscale into real chunk size: - LinearUpscale3DArray(NoiseData, DIM_X, DIM_Z, DIM_Y, m_NoiseArray, INTERPOL_X, INTERPOL_Z, INTERPOL_Y); -} - - - - - -/// Returns true if the chunk is outside of the island's dimensions -bool cEndGen::IsChunkOutsideRange(int a_ChunkX, int a_ChunkZ) -{ - return ( - (a_ChunkX < m_MinChunkX) || (a_ChunkX > m_MaxChunkX) || - (a_ChunkZ < m_MinChunkZ) || (a_ChunkZ > m_MaxChunkZ) - ); -} - - - - - -void cEndGen::GenHeightMap(int a_ChunkX, int a_ChunkZ, cChunkDef::HeightMap & a_HeightMap) -{ - if (IsChunkOutsideRange(a_ChunkX, a_ChunkZ)) - { - for (unsigned int i = 0; i < ARRAYCOUNT(a_HeightMap); i++) - { - a_HeightMap[i] = 0; - } - return; - } - - PrepareState(a_ChunkX, a_ChunkZ); - - int MaxY = std::min((int)(1.75 * m_IslandSizeY + 1), cChunkDef::Height - 1); - for (int z = 0; z < cChunkDef::Width; z++) - { - for (int x = 0; x < cChunkDef::Width; x++) - { - cChunkDef::SetHeight(a_HeightMap, x, z, MaxY); - for (int y = MaxY; y > 0; y--) - { - if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= 0) - { - cChunkDef::SetHeight(a_HeightMap, x, z, y); - break; - } - } // for y - } // for x - } // for z -} - - - - - -void cEndGen::ComposeTerrain(cChunkDesc & a_ChunkDesc) -{ - if (IsChunkOutsideRange(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ())) - { - a_ChunkDesc.FillBlocks(E_BLOCK_AIR, 0); - return; - } - - PrepareState(a_ChunkDesc.GetChunkX(), a_ChunkDesc.GetChunkZ()); - - int MaxY = std::min((int)(1.75 * m_IslandSizeY + 1), cChunkDef::Height - 1); - for (int z = 0; z < cChunkDef::Width; z++) - { - for (int x = 0; x < cChunkDef::Width; x++) - { - for (int y = MaxY; y > 0; y--) - { - if (m_NoiseArray[y * 17 * 17 + z * 17 + x] <= 0) - { - a_ChunkDesc.SetBlockTypeMeta(x, y, z, E_BLOCK_END_STONE, 0); - } - else - { - a_ChunkDesc.SetBlockTypeMeta(x, y, z, E_BLOCK_AIR, 0); - } - } // for y - } // for x - } // for z -} - - - - |