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authorMattes D <github@xoft.cz>2014-11-12 21:24:26 +0100
committerMattes D <github@xoft.cz>2014-11-12 21:24:26 +0100
commit5fb2526e0739fa27d925a686669f2c3aef56e825 (patch)
treec548202392d5f2cf12ee7b23a45c9f0a9026d9c6 /src/Generating/ShapeGen.cpp
parentBiomalNoise3D: Added a few biomes. (diff)
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diff --git a/src/Generating/ShapeGen.cpp b/src/Generating/ShapeGen.cpp
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+
+// ShapeGen.cpp
+
+// Implements the function to create a cTerrainShapeGen descendant based on INI file settings
+
+#include "Globals.h"
+#include "HeiGen.h"
+#include "../IniFile.h"
+#include "DistortedHeightmap.h"
+#include "EndGen.h"
+#include "Noise3DGenerator.h"
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cTerrainHeightToShapeGen:
+
+/** Converts old-style height-generators into new-style shape-generators. */
+class cTerrainHeightToShapeGen:
+ public cTerrainShapeGen
+{
+public:
+ cTerrainHeightToShapeGen(cTerrainHeightGenPtr a_HeightGen):
+ m_HeightGen(a_HeightGen)
+ {
+ }
+
+
+ // cTerrainShapeGen overrides:
+ virtual void GenShape(int a_ChunkX, int a_ChunkZ, cChunkDesc::Shape & a_Shape) override
+ {
+ // Generate the heightmap:
+ cChunkDef::HeightMap heightMap;
+ m_HeightGen->GenHeightMap(a_ChunkX, a_ChunkZ, heightMap);
+
+ // Convert from heightmap to shape:
+ for (int z = 0; z < cChunkDef::Width; z++)
+ {
+ for (int x = 0; x < cChunkDef::Width; x++)
+ {
+ HEIGHTTYPE height = cChunkDef::GetHeight(heightMap, x, z) + 1;
+ Byte * shapeColumn = &(a_Shape[(x + 16 * z) * 256]);
+ for (int y = 0; y < height; y++)
+ {
+ shapeColumn[y] = 1;
+ }
+ for (int y = height; y < cChunkDef::Height; y++)
+ {
+ shapeColumn[y] = 0;
+ }
+ } // for x
+ } // for z
+ }
+
+
+ virtual void InitializeShapeGen(cIniFile & a_IniFile) override
+ {
+ m_HeightGen->InitializeHeightGen(a_IniFile);
+ }
+
+protected:
+ /** The height generator being converted. */
+ cTerrainHeightGenPtr m_HeightGen;
+};
+
+typedef SharedPtr<cTerrainHeightToShapeGen> cTerrainHeightToShapeGenPtr;
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+// cTerrainShapeGen:
+
+cTerrainShapeGenPtr cTerrainShapeGen::CreateShapeGen(cIniFile & a_IniFile, cBiomeGenPtr a_BiomeGen, int a_Seed, bool & a_CacheOffByDefault)
+{
+ AString shapeGenName = a_IniFile.GetValueSet("Generator", "ShapeGen", "");
+ if (shapeGenName.empty())
+ {
+ LOGWARN("[Generator] ShapeGen value not set in world.ini, using \"BiomalNoise3D\".");
+ shapeGenName = "BiomalNoise3D";
+ }
+
+ // If the shapegen is HeightMap, redirect to older HeightMap-based generators:
+ if (NoCaseCompare(shapeGenName, "HeightMap") == 0)
+ {
+ cTerrainHeightGenPtr heightGen = cTerrainHeightGen::CreateHeightGen(a_IniFile, a_BiomeGen, a_Seed, a_CacheOffByDefault);
+ if (heightGen != nullptr)
+ {
+ return std::make_shared<cTerrainHeightToShapeGen>(heightGen);
+ }
+
+ // The height gen was not recognized; several heightgens were promoted to shape gens, so let's try them instead:
+ shapeGenName = a_IniFile.GetValue("Generator", "HeightGen", "");
+ if (shapeGenName.empty())
+ {
+ LOGWARNING("[Generator] ShapeGen set to HeightMap, but HeightGen not set. Reverting to \"BiomalNoise3D\".");
+ shapeGenName = "BiomalNoise3D";
+ a_IniFile.SetValue("Generator", "ShapeGen", shapeGenName);
+ }
+ }
+
+ // Choose the shape generator based on the name:
+ a_CacheOffByDefault = false;
+ cTerrainShapeGenPtr res;
+ if (NoCaseCompare(shapeGenName, "DistortedHeightmap") == 0)
+ {
+ res = std::make_shared<cDistortedHeightmap>(a_Seed, a_BiomeGen);
+ }
+ else if (NoCaseCompare(shapeGenName, "End") == 0)
+ {
+ res = std::make_shared<cEndGen>(a_Seed);
+ }
+ else if (NoCaseCompare(shapeGenName, "BiomalNoise3D") == 0)
+ {
+ res = std::make_shared<cBiomalNoise3DComposable>(a_Seed, a_BiomeGen);
+ }
+ else if (NoCaseCompare(shapeGenName, "Noise3D") == 0)
+ {
+ res = std::make_shared<cNoise3DComposable>(a_Seed);
+ }
+ else
+ {
+ // No match found, force-set the default and retry
+ LOGWARN("Unknown ShapeGen \"%s\", using \"BiomalNoise3D\" instead.", shapeGenName.c_str());
+ a_IniFile.SetValue("Generator", "ShapeGen", "BiomalNoise3D");
+ return CreateShapeGen(a_IniFile, a_BiomeGen, a_Seed, a_CacheOffByDefault);
+ }
+
+ // Read the settings:
+ res->InitializeShapeGen(a_IniFile);
+
+ return res;
+}
+
+
+
+