FStateID.h

Go to the documentation of this file.

#pragma once
 
#include <state/StateID.h>
 
template <typename T>
class FStateID : public StateID
{
public:
    typedef void (T::*FunctionPtr)();
 
public:
    FStateID(FunctionPtr initialize, FunctionPtr execute, FunctionPtr finalize)
        : mInitialize(initialize)
        , mExecute(execute)
        , mFinalize(finalize)
    {
    }
 
    ~FStateID() override
    {
    }
 
    void initializeState(T& obj) const
    {
        (obj.*mInitialize)();
    }
 
    void executeState(T& obj) const
    {
        (obj.*mExecute)();
    }
 
    void finalizeState(T& obj) const
    {
        (obj.*mFinalize)();
    }
 
protected:
    FunctionPtr mInitialize;
    FunctionPtr mExecute;
    FunctionPtr mFinalize;
};
 
#define DECLARE_STATE_ID(CLASS, NAME)
    static FStateID<CLASS> StateID_##NAME;
    void initializeState_##NAME();
    void executeState_##NAME();
    void finalizeState_##NAME();
 
#define CREATE_STATE_ID(CLASS, NAME)
    FStateID<CLASS> CLASS::StateID_##NAME
        (&CLASS::initializeState_##NAME,
         &CLASS::executeState_##NAME,
         &CLASS::finalizeState_##NAME);
 
// The following is only ever used by PlayerObject demo states
 
#define DECLARE_STATE_ID_VIRTUAL_FUNC_OVERRIDE(CLASS, NAME)
    static FStateID<CLASS> StateID_##NAME;
    void initializeState_##NAME() override;
    void executeState_##NAME() override;
    void finalizeState_##NAME() override;