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DistortedHeightmap: Rewritten to use the optimized cPerlinNoise and linear upscaling

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git-svn-id: http://mc-server.googlecode.com/svn/trunk@1486 0a769ca7-a7f5-676a-18bf-c427514a06d6
This commit is contained in:
madmaxoft@gmail.com
2013-05-16 13:14:25 +00:00
parent e7238456db
commit bd910e78e2
2 changed files with 64 additions and 121 deletions
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24
source/Generating/DistortedHeightmap.h
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@@ -35,11 +35,18 @@ public:
protected:
typedef cChunkDef::BiomeMap BiomeNeighbors[3][3];
cNoise m_Noise1;
cNoise m_Noise2;
cNoise m_Noise3;
cNoise m_Noise4;
cNoise m_Noise5;
// Linear upscaling step sizes, must be divisors of cChunkDef::Width and cChunkDef::Height, respectively:
static const int INTERPOL_X = 8;
static const int INTERPOL_Y = 4;
static const int INTERPOL_Z = 8;
// Linear upscaling buffer dimensions, calculated from the step sizes:
static const int DIM_X = 1 + (17 / INTERPOL_X);
static const int DIM_Y = 1 + (257 / INTERPOL_Y);
static const int DIM_Z = 1 + (17 / INTERPOL_Z);
cPerlinNoise m_NoiseDistortX;
cPerlinNoise m_NoiseDistortZ;
int m_SeaLevel;
NOISE_DATATYPE m_FrequencyX;
@@ -48,7 +55,7 @@ protected:
int m_CurChunkX;
int m_CurChunkZ;
NOISE_DATATYPE m_DistortedHeightmap[17 * 17 * 257];
NOISE_DATATYPE m_DistortedHeightmap[17 * 257 * 17];
cBiomeGen & m_BiomeGen;
cHeiGenBiomal m_UnderlyingHeiGen; // This generator provides us with base heightmap (before distortion)
@@ -65,8 +72,9 @@ protected:
} ;
static const sGenParam m_GenParam[biNumBiomes];
NOISE_DATATYPE m_DistortAmpX[17 * 17];
NOISE_DATATYPE m_DistortAmpZ[17 * 17];
// Distortion amplitudes for each direction, before linear upscaling
NOISE_DATATYPE m_DistortAmpX[DIM_X * DIM_Z];
NOISE_DATATYPE m_DistortAmpZ[DIM_X * DIM_Z];
/// Unless the LastChunk coords are equal to coords given, prepares the internal state (noise arrays, heightmap)