CompositedHeiGen.h

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// CompositedHeiGen.h
 
// Declares the cCompositedHeiGen class representing a cTerrainHeightGen descendant that calculates heightmap of the composited terrain
// This is used to further cache heightmaps for chunks already generated for finishers that require only heightmap information
 
 
 
 
 
#pragma once
 
#include "ComposableGenerator.h"
 
 
 
 
 
class cCompositedHeiGen:
    public cTerrainHeightGen
{
public:
    cCompositedHeiGen(cBiomeGen & a_BiomeGen, cTerrainShapeGen & a_ShapeGen, cTerrainCompositionGen & a_CompositionGen):
        m_BiomeGen(a_BiomeGen),
        m_ShapeGen(a_ShapeGen),
        m_CompositionGen(a_CompositionGen)
    {
    }
 
 
 
    // cTerrainHeightGen overrides:
    virtual void GenHeightMap(cChunkCoords a_ChunkCoords, cChunkDef::HeightMap & a_HeightMap) override
    {
        cChunkDesc::Shape shape;
        m_ShapeGen.GenShape(a_ChunkCoords, shape);
        cChunkDesc desc(a_ChunkCoords);
        m_BiomeGen.GenBiomes(a_ChunkCoords, desc.GetBiomeMap());  // Need to initialize biomes for the composition gen
        desc.SetHeightFromShape(shape);
        m_CompositionGen.ComposeTerrain(desc, shape);
        memcpy(a_HeightMap, desc.GetHeightMap(), sizeof(a_HeightMap));
    }
 
protected:
    cBiomeGen & m_BiomeGen;
    cTerrainShapeGen & m_ShapeGen;
    cTerrainCompositionGen & m_CompositionGen;
};