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authorarchshift <admin@archshift.com>2014-07-29 22:04:00 +0200
committerarchshift <admin@archshift.com>2014-07-29 22:04:00 +0200
commita9b597087b56b4526a3f6447789ba141568575a1 (patch)
treea08542d77b5668a25ca5e00492577ed6f4d61a9a /src/Generating/Ravines.cpp
parentSpacing fixes and a few more BLOCK_META constants. (diff)
parentSlight cleanup after portals (diff)
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Diffstat (limited to '')
-rw-r--r--src/Generating/Ravines.cpp245
1 files changed, 56 insertions, 189 deletions
diff --git a/src/Generating/Ravines.cpp b/src/Generating/Ravines.cpp
index 267dcbbf9..70b9d0b62 100644
--- a/src/Generating/Ravines.cpp
+++ b/src/Generating/Ravines.cpp
@@ -9,9 +9,6 @@
-/// How many ravines in each direction are generated for a given chunk. Must be an even number
-static const int NEIGHBORHOOD_SIZE = 8;
-
static const int NUM_RAVINE_POINTS = 4;
@@ -42,50 +39,49 @@ typedef std::vector<cRavDefPoint> cRavDefPoints;
-class cStructGenRavines::cRavine
+class cStructGenRavines::cRavine :
+ public cGridStructGen::cStructure
{
+ typedef cGridStructGen::cStructure super;
+
cRavDefPoints m_Points;
+
- /// Generates the shaping defpoints for the ravine, based on the ravine block coords and noise
+ /** Generates the shaping defpoints for the ravine, based on the ravine block coords and noise */
void GenerateBaseDefPoints(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise);
- /// Refines (adds and smooths) defpoints from a_Src into a_Dst
+ /** Refines (adds and smooths) defpoints from a_Src into a_Dst */
void RefineDefPoints(const cRavDefPoints & a_Src, cRavDefPoints & a_Dst);
- /// Does one round of smoothing, two passes of RefineDefPoints()
+ /** Does one round of smoothing, two passes of RefineDefPoints() */
void Smooth(void);
- /// Linearly interpolates the points so that the maximum distance between two neighbors is max 1 block
+ /** Linearly interpolates the points so that the maximum distance between two neighbors is max 1 block */
void FinishLinear(void);
public:
- // Coords for which the ravine was generated (not necessarily the center)
- int m_BlockX;
- int m_BlockZ;
- cRavine(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise);
-
- /// Carves the ravine into the chunk specified
- void ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
- );
+ cRavine(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ, int a_Size, cNoise & a_Noise);
#ifdef _DEBUG
/// Exports itself as a SVG line definition
AString ExportAsSVG(int a_Color, int a_OffsetX = 0, int a_OffsetZ = 0) const;
#endif // _DEBUG
+
+protected:
+ // cGridStructGen::cStructure overrides:
+ virtual void DrawIntoChunk(cChunkDesc & a_ChunkDesc) override;
} ;
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
// cStructGenRavines:
cStructGenRavines::cStructGenRavines(int a_Seed, int a_Size) :
+ super(a_Seed, a_Size, a_Size, a_Size, a_Size, a_Size * 2, a_Size * 2, 100),
m_Noise(a_Seed),
m_Size(a_Size)
{
@@ -95,157 +91,26 @@ cStructGenRavines::cStructGenRavines(int a_Seed, int a_Size) :
-cStructGenRavines::~cStructGenRavines()
+cGridStructGen::cStructurePtr cStructGenRavines::CreateStructure(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ)
{
- ClearCache();
+ return cStructurePtr(new cRavine(a_GridX, a_GridZ, a_OriginX, a_OriginZ, m_Size, m_Noise));
}
-void cStructGenRavines::ClearCache(void)
-{
- for (cRavines::const_iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- } // for itr - m_Cache[]
- m_Cache.clear();
-}
-
-
-
-
-
-void cStructGenRavines::GenFinish(cChunkDesc & a_ChunkDesc)
-{
- int ChunkX = a_ChunkDesc.GetChunkX();
- int ChunkZ = a_ChunkDesc.GetChunkZ();
- cRavines Ravines;
- GetRavinesForChunk(ChunkX, ChunkZ, Ravines);
- for (cRavines::const_iterator itr = Ravines.begin(), end = Ravines.end(); itr != end; ++itr)
- {
- (*itr)->ProcessChunk(ChunkX, ChunkZ, a_ChunkDesc.GetBlockTypes(), a_ChunkDesc.GetHeightMap());
- } // for itr - Ravines[]
-}
-
-
-
-
-void cStructGenRavines::GetRavinesForChunk(int a_ChunkX, int a_ChunkZ, cStructGenRavines::cRavines & a_Ravines)
-{
- int BaseX = a_ChunkX * cChunkDef::Width / m_Size;
- int BaseZ = a_ChunkZ * cChunkDef::Width / m_Size;
- if (BaseX < 0)
- {
- --BaseX;
- }
- if (BaseZ < 0)
- {
- --BaseZ;
- }
- BaseX -= 4;
- BaseZ -= 4;
-
- // Walk the cache, move each ravine that we want into a_Ravines:
- int StartX = BaseX * m_Size;
- int EndX = (BaseX + NEIGHBORHOOD_SIZE + 1) * m_Size;
- int StartZ = BaseZ * m_Size;
- int EndZ = (BaseZ + NEIGHBORHOOD_SIZE + 1) * m_Size;
- for (cRavines::iterator itr = m_Cache.begin(), end = m_Cache.end(); itr != end;)
- {
- if (
- ((*itr)->m_BlockX >= StartX) && ((*itr)->m_BlockX < EndX) &&
- ((*itr)->m_BlockZ >= StartZ) && ((*itr)->m_BlockZ < EndZ)
- )
- {
- // want
- a_Ravines.push_back(*itr);
- itr = m_Cache.erase(itr);
- }
- else
- {
- // don't want
- ++itr;
- }
- } // for itr - m_Cache[]
-
- for (int x = 0; x < NEIGHBORHOOD_SIZE; x++)
- {
- int RealX = (BaseX + x) * m_Size;
- for (int z = 0; z < NEIGHBORHOOD_SIZE; z++)
- {
- int RealZ = (BaseZ + z) * m_Size;
- bool Found = false;
- for (cRavines::const_iterator itr = a_Ravines.begin(), end = a_Ravines.end(); itr != end; ++itr)
- {
- if (((*itr)->m_BlockX == RealX) && ((*itr)->m_BlockZ == RealZ))
- {
- Found = true;
- break;
- }
- }
- if (!Found)
- {
- a_Ravines.push_back(new cRavine(RealX, RealZ, m_Size, m_Noise));
- }
- }
- }
-
- // Copy a_Ravines into m_Cache to the beginning:
- cRavines RavinesCopy(a_Ravines);
- m_Cache.splice(m_Cache.begin(), RavinesCopy, RavinesCopy.begin(), RavinesCopy.end());
-
- // Trim the cache if it's too long:
- if (m_Cache.size() > 100)
- {
- cRavines::iterator itr = m_Cache.begin();
- std::advance(itr, 100);
- for (cRavines::iterator end = m_Cache.end(); itr != end; ++itr)
- {
- delete *itr;
- }
- itr = m_Cache.begin();
- std::advance(itr, 100);
- m_Cache.erase(itr, m_Cache.end());
- }
-
- /*
- #ifdef _DEBUG
- // DEBUG: Export as SVG into a file specific for the chunk, for visual verification:
- AString SVG;
- SVG.append("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"1024\" height = \"1024\">\n");
- for (cRavines::const_iterator itr = a_Ravines.begin(), end = a_Ravines.end(); itr != end; ++itr)
- {
- SVG.append((*itr)->ExportAsSVG(0, 512, 512));
- }
- SVG.append("</svg>\n");
-
- AString fnam;
- Printf(fnam, "ravines\\%03d_%03d.svg", a_ChunkX, a_ChunkZ);
- cFile File(fnam, cFile::fmWrite);
- File.Write(SVG.c_str(), SVG.size());
- #endif // _DEBUG
- //*/
-}
-
-
-
-
-
-
-///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+////////////////////////////////////////////////////////////////////////////////
// cStructGenRavines::cRavine
-cStructGenRavines::cRavine::cRavine(int a_BlockX, int a_BlockZ, int a_Size, cNoise & a_Noise) :
- m_BlockX(a_BlockX),
- m_BlockZ(a_BlockZ)
+cStructGenRavines::cRavine::cRavine(int a_GridX, int a_GridZ, int a_OriginX, int a_OriginZ, int a_Size, cNoise & a_Noise) :
+ super(a_GridX, a_GridZ, a_OriginX, a_OriginZ)
{
// Calculate the ravine shape-defining points:
- GenerateBaseDefPoints(a_BlockX, a_BlockZ, a_Size, a_Noise);
+ GenerateBaseDefPoints(a_OriginX, a_OriginZ, a_Size, a_Noise);
- // Smooth the ravine. A two passes are needed:
+ // Smooth the ravine. Two passes are needed:
Smooth();
Smooth();
@@ -263,8 +128,8 @@ void cStructGenRavines::cRavine::GenerateBaseDefPoints(int a_BlockX, int a_Block
a_Size = (512 + ((a_Noise.IntNoise3DInt(19 * a_BlockX, 11 * a_BlockZ, a_BlockX + a_BlockZ) / 17) % 512)) * a_Size / 1024;
// The complete offset of the ravine from its cellpoint, up to 2 * a_Size in each direction
- int OffsetX = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 0) / 9) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * m_BlockZ, 1000) / 7) % (2 * a_Size)) - 2 * a_Size) / 2;
- int OffsetZ = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 2000) / 7) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * m_BlockZ, 3000) / 9) % (2 * a_Size)) - 2 * a_Size) / 2;
+ int OffsetX = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 0) / 9) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * a_BlockZ, 1000) / 7) % (2 * a_Size)) - 2 * a_Size) / 2;
+ int OffsetZ = (((a_Noise.IntNoise3DInt(50 * a_BlockX, 30 * a_BlockZ, 2000) / 7) % (2 * a_Size)) + ((a_Noise.IntNoise3DInt(30 * a_BlockX, 50 * a_BlockZ, 3000) / 9) % (2 * a_Size)) - 2 * a_Size) / 2;
int CenterX = a_BlockX + OffsetX;
int CenterZ = a_BlockZ + OffsetZ;
@@ -306,8 +171,14 @@ void cStructGenRavines::cRavine::GenerateBaseDefPoints(int a_BlockX, int a_Block
void cStructGenRavines::cRavine::RefineDefPoints(const cRavDefPoints & a_Src, cRavDefPoints & a_Dst)
{
+ if (a_Src.size() < 2)
+ {
+ // No midpoints, nothing to refine
+ return;
+ }
+
// Smoothing: for each line segment, add points on its 1/4 lengths
- int Num = a_Src.size() - 2; // this many intermediary points
+ size_t Num = a_Src.size() - 2; // this many intermediary points
a_Dst.clear();
a_Dst.reserve(Num * 2 + 2);
cRavDefPoints::const_iterator itr = a_Src.begin() + 1;
@@ -318,7 +189,7 @@ void cStructGenRavines::cRavine::RefineDefPoints(const cRavDefPoints & a_Src, cR
int PrevR = Source.m_Radius;
int PrevT = Source.m_Top;
int PrevB = Source.m_Bottom;
- for (int i = 0; i <= Num; ++i, ++itr)
+ for (size_t i = 0; i <= Num; ++i, ++itr)
{
int dx = itr->m_BlockX - PrevX;
int dz = itr->m_BlockZ - PrevZ;
@@ -412,38 +283,38 @@ void cStructGenRavines::cRavine::FinishLinear(void)
AString cStructGenRavines::cRavine::ExportAsSVG(int a_Color, int a_OffsetX, int a_OffsetZ) const
{
AString SVG;
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#%06x;stroke-width:1px;\"\nd=\"", a_Color);
- char Prefix = 'M'; // The first point needs "M" prefix, all the others need "L"
- for (cRavDefPoints::const_iterator itr = m_Points.begin(); itr != m_Points.end(); ++itr)
- {
- AppendPrintf(SVG, "%c %d,%d ", Prefix, a_OffsetX + itr->m_BlockX, a_OffsetZ + itr->m_BlockZ);
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#%06x;stroke-width:1px;\"\nd=\"", a_Color);
+ char Prefix = 'M'; // The first point needs "M" prefix, all the others need "L"
+ for (cRavDefPoints::const_iterator itr = m_Points.begin(); itr != m_Points.end(); ++itr)
+ {
+ AppendPrintf(SVG, "%c %d, %d ", Prefix, a_OffsetX + itr->m_BlockX, a_OffsetZ + itr->m_BlockZ);
Prefix = 'L';
- }
- SVG.append("\"/>\n");
-
- // Base point highlight:
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX - 5, a_OffsetZ + m_BlockZ, a_OffsetX + m_BlockX + 5, a_OffsetZ + m_BlockZ
+ }
+ SVG.append("\"/>\n");
+
+ // Base point highlight:
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d, %d L %d, %d\"/>\n",
+ a_OffsetX + m_OriginX - 5, a_OffsetZ + m_OriginZ, a_OffsetX + m_OriginX + 5, a_OffsetZ + m_OriginZ
);
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ - 5, a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ + 5
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#ff0000;stroke-width:1px;\"\nd=\"M %d, %d L %d, %d\"/>\n",
+ a_OffsetX + m_OriginX, a_OffsetZ + m_OriginZ - 5, a_OffsetX + m_OriginX, a_OffsetZ + m_OriginZ + 5
);
// A gray line from the base point to the first point of the ravine, for identification:
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#cfcfcf;stroke-width:1px;\"\nd=\"M %d,%d L %d,%d\"/>\n",
- a_OffsetX + m_BlockX, a_OffsetZ + m_BlockZ, a_OffsetX + m_Points.front().m_BlockX, a_OffsetZ + m_Points.front().m_BlockZ
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#cfcfcf;stroke-width:1px;\"\nd=\"M %d, %d L %d, %d\"/>\n",
+ a_OffsetX + m_OriginX, a_OffsetZ + m_OriginZ, a_OffsetX + m_Points.front().m_BlockX, a_OffsetZ + m_Points.front().m_BlockZ
);
// Offset guides:
if (a_OffsetX > 0)
{
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M %d,0 L %d,1024\"/>\n",
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M %d, 0 L %d, 1024\"/>\n",
a_OffsetX, a_OffsetX
);
}
if (a_OffsetZ > 0)
{
- AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M 0,%d L 1024,%d\"/>\n",
+ AppendPrintf(SVG, "<path style=\"fill:none;stroke:#0000ff;stroke-width:1px;\"\nd=\"M 0, %d L 1024, %d\"/>\n",
a_OffsetZ, a_OffsetZ
);
}
@@ -455,14 +326,10 @@ AString cStructGenRavines::cRavine::ExportAsSVG(int a_Color, int a_OffsetX, int
-void cStructGenRavines::cRavine::ProcessChunk(
- int a_ChunkX, int a_ChunkZ,
- cChunkDef::BlockTypes & a_BlockTypes,
- cChunkDef::HeightMap & a_HeightMap
-)
+void cStructGenRavines::cRavine::DrawIntoChunk(cChunkDesc & a_ChunkDesc)
{
- int BlockStartX = a_ChunkX * cChunkDef::Width;
- int BlockStartZ = a_ChunkZ * cChunkDef::Width;
+ 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 (cRavDefPoints::const_iterator itr = m_Points.begin(), end = m_Points.end(); itr != end; ++itr)
@@ -488,7 +355,7 @@ void cStructGenRavines::cRavine::ProcessChunk(
// DEBUG: Make the ravine shapepoints visible on a single layer (so that we can see with Minutor what's going on)
if ((DifX + x == 0) && (DifZ + z == 0))
{
- cChunkDef::SetBlock(a_BlockTypes, x, 4, z, E_BLOCK_LAPIS_ORE);
+ a_ChunkDesc.SetBlockType(x, 4, z, E_BLOCK_LAPIS_ORE);
}
#endif // _DEBUG
@@ -498,7 +365,7 @@ void cStructGenRavines::cRavine::ProcessChunk(
int Top = std::min(itr->m_Top, (int)(cChunkDef::Height)); // Stupid gcc needs int cast
for (int y = std::max(itr->m_Bottom, 1); y <= Top; y++)
{
- switch (cChunkDef::GetBlock(a_BlockTypes, x, y, z))
+ switch (a_ChunkDesc.GetBlockType(x, y, z))
{
// Only carve out these specific block types
case E_BLOCK_DIRT:
@@ -516,7 +383,7 @@ void cStructGenRavines::cRavine::ProcessChunk(
case E_BLOCK_REDSTONE_ORE:
case E_BLOCK_REDSTONE_ORE_GLOWING:
{
- cChunkDef::SetBlock(a_BlockTypes, x, y, z, E_BLOCK_AIR);
+ a_ChunkDesc.SetBlockType(x, y, z, E_BLOCK_AIR);
break;
}
default: break;