ScriptFunc.h

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#pragma once
 
#include "PolyphaseAPI.h"
#include "EngineTypes.h"
#include "Datum.h"
 
class ScriptComponent;
 
class POLYPHASE_API ScriptFunc
{
public:
    ScriptFunc();
    ~ScriptFunc();
 
    ScriptFunc(lua_State* L, int arg);
    ScriptFunc(const ScriptFunc& src);
    ScriptFunc& operator=(const ScriptFunc& src);
    ScriptFunc(const Datum& datum);
 
    bool operator==(const ScriptFunc& other) const;
    bool operator!=(const ScriptFunc& other) const;
 
    void Call(uint32_t numParams = 0, Datum* params = nullptr) const;
    Datum CallR(uint32_t numParams = 0, Datum* params = nullptr) const;
 
    void Push(lua_State* L) const;
 
    bool IsValid() const;
 
    static void CreateRefTable();
 
protected:
 
    void RegisterRef(lua_State* L, int arg);
    void UnregisterRef();
    void CopyRef(int ref);
 
    int mRef = LUA_REFNIL;
};
 
template<typename T>
struct ScriptableFP
{
    T mFuncPointer = nullptr;
    mutable ScriptFunc mScriptFunc;
};