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Merge pull request #1252 from mc-server/RoughRavinesGen

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Rough ravines gen
This commit is contained in:
Mattes D 2014-07-29 17:46:57 +02:00
commit 8287f2d933
5 changed files with 451 additions and 3 deletions
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2
src/Generating/CMakeLists.txt
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@ -25,6 +25,7 @@ SET (SRCS
PrefabPiecePool.cpp
RainbowRoadsGen.cpp
Ravines.cpp
RoughRavines.cpp
StructGen.cpp
TestRailsGen.cpp
Trees.cpp
@ -52,6 +53,7 @@ SET (HDRS
PrefabPiecePool.h
RainbowRoadsGen.h
Ravines.h
RoughRavines.h
StructGen.h
TestRailsGen.h
Trees.h

36
src/Generating/ComposableGenerator.cpp
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@ -26,6 +26,7 @@
#include "POCPieceGenerator.h"
#include "RainbowRoadsGen.h"
#include "Ravines.h"
#include "RoughRavines.h"
#include "TestRailsGen.h"
#include "UnderwaterBaseGen.h"
#include "VillageGen.h"
@ -397,16 +398,45 @@ void cComposableGenerator::InitFinishGens(cIniFile & a_IniFile)
}
else if (NoCaseCompare(*itr, "RainbowRoads") == 0)
{
int GridSize = a_IniFile.GetValueSetI("Generator", "RainbowRoadsGridSize", 512);
int GridSize = a_IniFile.GetValueSetI("Generator", "RainbowRoadsGridSize", 512);
int MaxOffset = a_IniFile.GetValueSetI("Generator", "RainbowRoadsMaxOffset", 128);
int MaxDepth = a_IniFile.GetValueSetI("Generator", "RainbowRoadsMaxDepth", 30);
int MaxSize = a_IniFile.GetValueSetI("Generator", "RainbowRoadsMaxSize", 260);
int MaxDepth = a_IniFile.GetValueSetI("Generator", "RainbowRoadsMaxDepth", 30);
int MaxSize = a_IniFile.GetValueSetI("Generator", "RainbowRoadsMaxSize", 260);
m_FinishGens.push_back(new cRainbowRoadsGen(Seed, GridSize, MaxOffset, MaxDepth, MaxSize));
}
else if (NoCaseCompare(*itr, "Ravines") == 0)
{
m_FinishGens.push_back(new cStructGenRavines(Seed, 128));
}
else if (NoCaseCompare(*itr, "RoughRavines") == 0)
{
int GridSize = a_IniFile.GetValueSetI("Generator", "RoughRavinesGridSize", 256);
int MaxOffset = a_IniFile.GetValueSetI("Generator", "RoughRavinesMaxOffset", 128);
int MaxSize = a_IniFile.GetValueSetI("Generator", "RoughRavinesMaxSize", 128);
int MinSize = a_IniFile.GetValueSetI("Generator", "RoughRavinesMinSize", 64);
double MaxCenterWidth = a_IniFile.GetValueSetF("Generator", "RoughRavinesMaxCenterWidth", 8);
double MinCenterWidth = a_IniFile.GetValueSetF("Generator", "RoughRavinesMinCenterWidth", 2);
double MaxRoughness = a_IniFile.GetValueSetF("Generator", "RoughRavinesMaxRoughness", 0.2);
double MinRoughness = a_IniFile.GetValueSetF("Generator", "RoughRavinesMinRoughness", 0.05);
double MaxFloorHeightEdge = a_IniFile.GetValueSetF("Generator", "RoughRavinesMaxFloorHeightEdge", 8);
double MinFloorHeightEdge = a_IniFile.GetValueSetF("Generator", "RoughRavinesMinFloorHeightEdge", 30);
double MaxFloorHeightCenter = a_IniFile.GetValueSetF("Generator", "RoughRavinesMaxFloorHeightCenter", 20);
double MinFloorHeightCenter = a_IniFile.GetValueSetF("Generator", "RoughRavinesMinFloorHeightCenter", 6);
double MaxCeilingHeightEdge = a_IniFile.GetValueSetF("Generator", "RoughRavinesMaxCeilingHeightEdge", 56);
double MinCeilingHeightEdge = a_IniFile.GetValueSetF("Generator", "RoughRavinesMinCeilingHeightEdge", 38);
double MaxCeilingHeightCenter = a_IniFile.GetValueSetF("Generator", "RoughRavinesMaxCeilingHeightCenter", 58);
double MinCeilingHeightCenter = a_IniFile.GetValueSetF("Generator", "RoughRavinesMinCeilingHeightCenter", 36);
m_FinishGens.push_back(new cRoughRavines(
Seed, MaxSize, MinSize,
(float)MaxCenterWidth, (float)MinCenterWidth,
(float)MaxRoughness, (float)MinRoughness,
(float)MaxFloorHeightEdge, (float)MinFloorHeightEdge,
(float)MaxFloorHeightCenter, (float)MinFloorHeightCenter,
(float)MaxCeilingHeightEdge, (float)MinCeilingHeightEdge,
(float)MaxCeilingHeightCenter, (float)MinCeilingHeightCenter,
GridSize, MaxOffset
));
}
else if (NoCaseCompare(*itr, "Snow") == 0)
{
m_FinishGens.push_back(new cFinishGenSnow);

318
src/Generating/RoughRavines.cpp Normal file
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@ -0,0 +1,318 @@
// RoughRavines.cpp
// Implements the cRoughRavines class representing the rough ravine generator
#include "Globals.h"
#include "RoughRavines.h"
////////////////////////////////////////////////////////////////////////////////
// cRoughRavine:
class cRoughRavine :
public cGridStructGen::cStructure
{
typedef cGridStructGen::cStructure super;
public:
cRoughRavine(
int a_Seed, int a_Size,
float a_CenterWidth, float a_Roughness,
float a_FloorHeightEdge1, float a_FloorHeightEdge2, float a_FloorHeightCenter,
float a_CeilingHeightEdge1, float a_CeilingHeightEdge2, float a_CeilingHeightCenter,
int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ
) :
super(a_GridX, a_GridZ, a_OriginX, a_OriginZ),
m_Seed(a_Seed + 100),
m_Noise(a_Seed + 100),
m_Roughness(a_Roughness)
{
// Create the basic structure - 2 lines meeting at the centerpoint:
int Max = 2 * a_Size;
int Half = a_Size; // m_DefPoints[Half] will be the centerpoint
m_DefPoints.resize(Max + 1);
int rnd = m_Noise.IntNoise2DInt(a_OriginX, a_OriginZ) / 7;
float Len = (float)a_Size;
float Angle = (float)rnd; // Angle is in radians, will be wrapped in the "sin" and "cos" operations
float OfsX = sin(Angle) * Len;
float OfsZ = cos(Angle) * Len;
m_DefPoints[0].Set (a_OriginX - OfsX, a_OriginZ - OfsZ, 1, a_CeilingHeightEdge1, a_FloorHeightEdge1);
m_DefPoints[Half].Set((float)a_OriginX, (float)a_OriginZ, a_CenterWidth, a_CeilingHeightCenter, a_FloorHeightCenter);
m_DefPoints[Max].Set (a_OriginX + OfsX, a_OriginZ + OfsZ, 1, a_CeilingHeightEdge2, a_FloorHeightEdge2);
// Calculate the points in between, recursively:
SubdivideLine(0, Half);
SubdivideLine(Half, Max);
// Initialize the per-height radius modifiers:
InitPerHeightRadius(a_GridX, a_GridZ);
}
protected:
struct sRavineDefPoint
{
float m_X;
float m_Z;
float m_Radius;
float m_Top;
float m_Bottom;
void Set(float a_X, float a_Z, float a_Radius, float a_Top, float a_Bottom)
{
m_X = a_X;
m_Z = a_Z;
m_Radius = a_Radius;
m_Top = a_Top;
m_Bottom = a_Bottom;
}
};
typedef std::vector<sRavineDefPoint> sRavineDefPoints;
int m_Seed;
cNoise m_Noise;
int m_MaxSize;
sRavineDefPoints m_DefPoints;
float m_Roughness;
/** Number to add to the radius based on the height. This creates the "ledges" in the ravine walls. */
float m_PerHeightRadius[cChunkDef::Height];
/** Recursively subdivides the line between the points of the specified index.
Sets the midpoint to the center of the line plus or minus a random offset, then calls itself for each half
of the new line. */
void SubdivideLine(int a_Idx1, int a_Idx2)
{
// Calculate the midpoint:
const sRavineDefPoint & p1 = m_DefPoints[a_Idx1];
const sRavineDefPoint & p2 = m_DefPoints[a_Idx2];
float MidX = (p1.m_X + p2.m_X) / 2;
float MidZ = (p1.m_Z + p2.m_Z) / 2;
float MidR = (p1.m_Radius + p2.m_Radius) / 2 + 0.1f;
float MidT = (p1.m_Top + p2.m_Top) / 2;
float MidB = (p1.m_Bottom + p2.m_Bottom) / 2;
// Adjust the midpoint by a small amount of perpendicular vector in a random one of its two directions:
float dx = p2.m_X - p1.m_X;
float dz = p2.m_Z - p1.m_Z;
if ((m_Noise.IntNoise2DInt((int)MidX, (int)MidZ) / 11) % 2 == 0)
{
MidX += dz * m_Roughness;
MidZ -= dx * m_Roughness;
}
else
{
MidX -= dz * m_Roughness;
MidZ += dx * m_Roughness;
}
int MidIdx = (a_Idx1 + a_Idx2) / 2;
m_DefPoints[MidIdx].Set(MidX, MidZ, MidR, MidT, MidB);
// Recurse the two halves, if they are worth recursing:
if (MidIdx - a_Idx1 > 1)
{
SubdivideLine(a_Idx1, MidIdx);
}
if (a_Idx2 - MidIdx > 1)
{
SubdivideLine(MidIdx, a_Idx2);
}
}
void InitPerHeightRadius(int a_GridX, int a_GridZ)
{
int h = 0;
while (h < cChunkDef::Height)
{
m_Noise.SetSeed(m_Seed + h);
int rnd = m_Noise.IntNoise2DInt(a_GridX, a_GridZ) / 13;
int NumBlocks = (rnd % 3) + 2;
rnd = rnd / 4;
float Val = (float)(rnd % 256) / 128 - 1; // Random float in range [-1, +1]
if (h + NumBlocks > cChunkDef::Height)
{
NumBlocks = cChunkDef::Height - h;
}
for (int i = 0; i < NumBlocks; i++)
{
m_PerHeightRadius[h + i] = Val;
}
h += NumBlocks;
}
}
virtual void DrawIntoChunk(cChunkDesc & a_ChunkDesc) override
{
int BlockStartX = a_ChunkDesc.GetChunkX() * cChunkDef::Width;
int BlockStartZ = a_ChunkDesc.GetChunkZ() * cChunkDef::Width;
int BlockEndX = BlockStartX + cChunkDef::Width;
int BlockEndZ = BlockStartZ + cChunkDef::Width;
for (sRavineDefPoints::const_iterator itr = m_DefPoints.begin(), end = m_DefPoints.end(); itr != end; ++itr)
{
if (
(ceilf (itr->m_X + itr->m_Radius + 2) < BlockStartX) ||
(floorf(itr->m_X - itr->m_Radius - 2) > BlockEndX) ||
(ceilf (itr->m_Z + itr->m_Radius + 2) < BlockStartZ) ||
(floorf(itr->m_Z - itr->m_Radius - 2) > BlockEndZ)
)
{
// Cannot intersect, bail out early
continue;
}
// Carve out a cylinder around the xz point, up to (m_Radius + 2) in diameter, from Bottom to Top:
// On each height level, use m_PerHeightRadius[] to modify the actual radius used
// EnlargedRadiusSq is the square of the radius enlarged by the maximum m_PerHeightRadius offset - anything outside it will never be touched.
float RadiusSq = (itr->m_Radius + 2) * (itr->m_Radius + 2);
float DifX = BlockStartX - itr->m_X; // substitution for faster calc
float DifZ = BlockStartZ - itr->m_Z; // substitution for faster calc
for (int x = 0; x < cChunkDef::Width; x++) for (int z = 0; z < cChunkDef::Width; z++)
{
#ifdef _DEBUG
// DEBUG: Make the roughravine shapepoints visible on a single layer (so that we can see with Minutor what's going on)
if ((DifX + x == 0) && (DifZ + z == 0))
{
a_ChunkDesc.SetBlockType(x, 4, z, E_BLOCK_LAPIS_ORE);
}
#endif // _DEBUG
// If the column is outside the enlarged radius, bail out completely
float DistSq = (DifX + x) * (DifX + x) + (DifZ + z) * (DifZ + z);
if (DistSq > RadiusSq)
{
continue;
}
int Top = std::min((int)ceilf(itr->m_Top), +cChunkDef::Height);
for (int y = std::max((int)floorf(itr->m_Bottom), 1); y <= Top; y++)
{
if ((itr->m_Radius + m_PerHeightRadius[y]) * (itr->m_Radius + m_PerHeightRadius[y]) < DistSq)
{
continue;
}
switch (a_ChunkDesc.GetBlockType(x, y, z))
{
// Only carve out these specific block types
case E_BLOCK_DIRT:
case E_BLOCK_GRASS:
case E_BLOCK_STONE:
case E_BLOCK_COBBLESTONE:
case E_BLOCK_GRAVEL:
case E_BLOCK_SAND:
case E_BLOCK_SANDSTONE:
case E_BLOCK_NETHERRACK:
case E_BLOCK_COAL_ORE:
case E_BLOCK_IRON_ORE:
case E_BLOCK_GOLD_ORE:
case E_BLOCK_DIAMOND_ORE:
case E_BLOCK_REDSTONE_ORE:
case E_BLOCK_REDSTONE_ORE_GLOWING:
{
a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
break;
}
default: break;
} // switch (BlockType)
} // for y
} // for x, z - a_BlockTypes
} // for itr - m_Points[]
}
};
////////////////////////////////////////////////////////////////////////////////
// cRoughRavines:
cRoughRavines::cRoughRavines(
int a_Seed,
int a_MaxSize, int a_MinSize,
float a_MaxCenterWidth, float a_MinCenterWidth,
float a_MaxRoughness, float a_MinRoughness,
float a_MaxFloorHeightEdge, float a_MinFloorHeightEdge,
float a_MaxFloorHeightCenter, float a_MinFloorHeightCenter,
float a_MaxCeilingHeightEdge, float a_MinCeilingHeightEdge,
float a_MaxCeilingHeightCenter, float a_MinCeilingHeightCenter,
int a_GridSize, int a_MaxOffset
) :
super(a_Seed, a_GridSize, a_GridSize, a_MaxOffset, a_MaxOffset, a_MaxSize, a_MaxSize, 64),
m_Seed(a_Seed),
m_MaxSize(a_MaxSize),
m_MinSize(a_MinSize),
m_MaxCenterWidth(a_MaxCenterWidth),
m_MinCenterWidth(a_MinCenterWidth),
m_MaxRoughness(a_MaxRoughness),
m_MinRoughness(a_MinRoughness),
m_MaxFloorHeightEdge(a_MaxFloorHeightEdge),
m_MinFloorHeightEdge(a_MinFloorHeightEdge),
m_MaxFloorHeightCenter(a_MaxFloorHeightCenter),
m_MinFloorHeightCenter(a_MinFloorHeightCenter),
m_MaxCeilingHeightEdge(a_MaxCeilingHeightEdge),
m_MinCeilingHeightEdge(a_MinCeilingHeightEdge),
m_MaxCeilingHeightCenter(a_MaxCeilingHeightCenter),
m_MinCeilingHeightCenter(a_MinCeilingHeightCenter)
{
if (m_MinSize > m_MaxSize)
{
std::swap(m_MinSize, m_MaxSize);
std::swap(a_MinSize, a_MaxSize);
}
if (m_MaxSize < 16)
{
m_MaxSize = 16;
LOGWARNING("RoughRavines: MaxSize too small, adjusting request from %d to %d", a_MaxSize, m_MaxSize);
}
if (m_MinSize < 16)
{
m_MinSize = 16;
LOGWARNING("RoughRavines: MinSize too small, adjusting request from %d to %d", a_MinSize, m_MinSize);
}
if (m_MinSize == m_MaxSize)
{
m_MaxSize = m_MinSize + 1;
}
}
cGridStructGen::cStructurePtr cRoughRavines::CreateStructure(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ)
{
// Pick a random value for each of the ravine's parameters:
int Size = m_MinSize + (m_Noise.IntNoise2DInt(a_GridX, a_GridZ) / 7) % (m_MaxSize - m_MinSize); // Random int from m_MinSize to m_MaxSize
float CenterWidth = m_Noise.IntNoise2DInRange(a_GridX + 10, a_GridZ, m_MinCenterWidth, m_MaxCenterWidth);
float Roughness = m_Noise.IntNoise2DInRange(a_GridX + 20, a_GridZ, m_MinRoughness, m_MaxRoughness);
float FloorHeightEdge1 = m_Noise.IntNoise2DInRange(a_GridX + 30, a_GridZ, m_MinFloorHeightEdge, m_MaxFloorHeightEdge);
float FloorHeightEdge2 = m_Noise.IntNoise2DInRange(a_GridX + 40, a_GridZ, m_MinFloorHeightEdge, m_MaxFloorHeightEdge);
float FloorHeightCenter = m_Noise.IntNoise2DInRange(a_GridX + 50, a_GridZ, m_MinFloorHeightCenter, m_MaxFloorHeightCenter);
float CeilingHeightEdge1 = m_Noise.IntNoise2DInRange(a_GridX + 60, a_GridZ, m_MinCeilingHeightEdge, m_MaxCeilingHeightEdge);
float CeilingHeightEdge2 = m_Noise.IntNoise2DInRange(a_GridX + 70, a_GridZ, m_MinCeilingHeightEdge, m_MaxCeilingHeightEdge);
float CeilingHeightCenter = m_Noise.IntNoise2DInRange(a_GridX + 80, a_GridZ, m_MinCeilingHeightCenter, m_MaxCeilingHeightCenter);
// Create a ravine:
return cStructurePtr(new cRoughRavine(
m_Seed,
Size, CenterWidth, Roughness,
FloorHeightEdge1, FloorHeightEdge2, FloorHeightCenter,
CeilingHeightEdge1, CeilingHeightEdge2, CeilingHeightCenter,
a_GridX, a_GridZ, a_OriginX, a_OriginZ
));
}

86
src/Generating/RoughRavines.h Normal file
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@ -0,0 +1,86 @@
// RoughRavines.h
// Declares the cRoughRavines class representing the rough ravine generator
#pragma once
#include "GridStructGen.h"
class cRoughRavines :
public cGridStructGen
{
typedef cGridStructGen super;
public:
cRoughRavines(
int a_Seed,
int a_MaxSize, int a_MinSize,
float a_MaxCenterWidth, float a_MinCenterWidth,
float a_MaxRoughness, float a_MinRoughness,
float a_MaxFloorHeightEdge, float a_MinFloorHeightEdge,
float a_MaxFloorHeightCenter, float a_MinFloorHeightCenter,
float a_MaxCeilingHeightEdge, float a_MinCeilingHeightEdge,
float a_MaxCeilingHeightCenter, float a_MinCeilingHeightCenter,
int a_GridSize, int a_MaxOffset
);
protected:
int m_Seed;
/** Maximum size of the ravine, in each of the X / Z axis */
int m_MaxSize;
/** Minimum size of the ravine */
int m_MinSize;
/** Maximum width of the ravine's center, in blocks */
float m_MaxCenterWidth;
/** Minimum width of the ravine's center, in blocks */
float m_MinCenterWidth;
/** Maximum roughness of the ravine */
float m_MaxRoughness;
/** Minimum roughness of the ravine */
float m_MinRoughness;
/** Maximum floor height at the ravine's edge */
float m_MaxFloorHeightEdge;
/** Minimum floor height at the ravine's edge */
float m_MinFloorHeightEdge;
/** Maximum floor height at the ravine's center */
float m_MaxFloorHeightCenter;
/** Minimum floor height at the ravine's center */
float m_MinFloorHeightCenter;
/** Maximum ceiling height at the ravine's edge */
float m_MaxCeilingHeightEdge;
/** Minimum ceiling height at the ravine's edge */
float m_MinCeilingHeightEdge;
/** Maximum ceiling height at the ravine's center */
float m_MaxCeilingHeightCenter;
/** Minimum ceiling height at the ravine's center */
float m_MinCeilingHeightCenter;
// cGridStructGen overrides:
virtual cStructurePtr CreateStructure(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ) override;
};

12
src/Noise.h
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@ -5,6 +5,12 @@
#pragma once
#include <cmath>
// Some settings
#define NOISE_DATATYPE float
@ -33,6 +39,12 @@ public:
INLINE NOISE_DATATYPE IntNoise2D(int a_X, int a_Y) const;
INLINE NOISE_DATATYPE IntNoise3D(int a_X, int a_Y, int a_Z) const;
// Return a float number in the specified range:
INLINE NOISE_DATATYPE IntNoise2DInRange(int a_X, int a_Y, float a_Min, float a_Max) const
{
return a_Min + std::abs(IntNoise2D(a_X, a_Y)) * (a_Max - a_Min);
}
// Note: These functions have a mod8-irregular chance - each of the mod8 remainders has different chance of occurrence. Divide by 8 to rectify.
INLINE int IntNoise1DInt(int a_X) const;
INLINE int IntNoise2DInt(int a_X, int a_Y) const;