4jcraft/Minecraft.World/WorldGen/Features/StructureFeature.h

#pragma once
#include "LargeFeature.h"
#include "../StructureFeatureSavedData.h"

class StructureStart;

// #define ENABLE_STRUCTURE_SAVING

class StructureFeature : public LargeFeature {
public:
    // 4J added - Maps to values in the game rules xml
    enum EFeatureTypes {
        eFeature_Mineshaft,
        eFeature_NetherBridge,
        eFeature_Temples,
        eFeature_Stronghold,
        eFeature_Village,
    };

#ifdef ENABLE_STRUCTURE_SAVING
private:
    std::shared_ptr<StructureFeatureSavedData> savedData;
#endif

protected:
    std::unordered_map<int64_t, StructureStart*> cachedStructures;

public:
    StructureFeature();
    ~StructureFeature();

    virtual std::wstring getFeatureName() = 0;

    virtual void addFeature(Level* level, int x, int z, int xOffs, int zOffs,
                            byteArray blocks);

    bool postProcess(Level* level, Random* random, int chunkX, int chunkZ);
    bool isIntersection(int cellX, int cellZ);

    bool isInsideFeature(int cellX, int cellY, int cellZ);

protected:
    StructureStart* getStructureAt(int cellX, int cellY, int cellZ);

public:
    bool isInsideBoundingFeature(int cellX, int cellY, int cellZ);
    TilePos* getNearestGeneratedFeature(Level* level, int cellX, int cellY,
                                        int cellZ);

protected:
    std::vector<TilePos>* getGuesstimatedFeaturePositions();

private:
    virtual void restoreSavedData(Level* level);
    virtual void saveFeature(int chunkX, int chunkZ, StructureStart* feature);

    /**
     * Returns true if the given chunk coordinates should hold a structure
     * source.
     *
     * @param x
     *            chunk x
     * @param z
     *            chunk z
     * @return
     */
protected:
    virtual bool isFeatureChunk(int x, int z, bool bIsSuperflat = false) = 0;

    /**
     * Creates a new instance of a structure source at the given chunk
     * coordinates.
     *
     * @param x
     *            chunk x
     * @param z
     *            chunk z
     * @return
     */
    virtual StructureStart* createStructureStart(int x, int z) = 0;
};