FluidSimulator.h

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#pragma once

#include "Simulator.h"


class cWorld;


enum Direction
{
    X_PLUS,
    X_MINUS,
    Y_PLUS,
    Y_MINUS,
    Z_PLUS,
    Z_MINUS,
    NONE
};





class cFluidSimulatorData
{
public:
    virtual ~cFluidSimulatorData() {}
};





class cFluidSimulator :
    public cSimulator
{
    typedef cSimulator super;

public:
    cFluidSimulator(cWorld & a_World, BLOCKTYPE a_Fluid, BLOCKTYPE a_StationaryFluid);

    // cSimulator overrides:
    virtual bool IsAllowedBlock(BLOCKTYPE a_BlockType) override;

    virtual Vector3f GetFlowingDirection(int a_X, int a_Y, int a_Z);

    virtual cFluidSimulatorData * CreateChunkData(void) { return nullptr; }

    bool IsFluidBlock          (BLOCKTYPE a_BlockType) const { return (a_BlockType == m_FluidBlock); }
    bool IsStationaryFluidBlock(BLOCKTYPE a_BlockType) const { return (a_BlockType == m_StationaryFluidBlock); }
    bool IsAnyFluidBlock       (BLOCKTYPE a_BlockType) const { return ((a_BlockType == m_FluidBlock) || (a_BlockType == m_StationaryFluidBlock)); }

    static bool CanWashAway(BLOCKTYPE a_BlockType);

    bool IsSolidBlock      (BLOCKTYPE a_BlockType);
    bool IsPassableForFluid(BLOCKTYPE a_BlockType);

    bool IsHigherMeta(NIBBLETYPE a_Meta1, NIBBLETYPE a_Meta2);

protected:
    BLOCKTYPE m_FluidBlock;            // The fluid block type that needs simulating
    BLOCKTYPE m_StationaryFluidBlock;  // The fluid block type that indicates no simulation is needed
};