TimerHandle.h

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#pragma once
 
#include "LkEngine/Core/CoreMacros.h"
#include "LkEngine/Core/CoreTypes.h"
 
namespace LkEngine {
 
    class FTimerHandle
    {
    public:
        FTimerHandle() : ID(Counter++) {}
        FTimerHandle(const uint64_t InID) : ID(InID) {}
 
        FORCEINLINE uint64_t GetID() const { return ID; }
        FORCEINLINE bool IsValid() const { return (ID != 0); }
 
        FORCEINLINE bool operator==(const FTimerHandle& Other) const 
        { 
            return (ID == Other.ID); 
        }
 
        FORCEINLINE void Invalidate() { ID = 0; }
 
    private:
        static FTimerHandle CreateHandle() { return FTimerHandle{ ++Counter }; }
 
    private:
        uint64_t ID = 0;
 
        inline static uint64_t Counter = 0;
 
        friend class LTimerManager;
    };
 
}
 
 
/* Provide hash implementation for FTimerHandle. */
namespace std 
{
    template<>
    struct hash<LkEngine::FTimerHandle>
    {
        std::size_t operator()(const LkEngine::FTimerHandle& TimerHandle) const noexcept
        {
            return std::hash<uint64_t>()(TimerHandle.GetID());
        }
    };
}