【UE4 C++】獲取運行時間、設置時間流速、暫停游戲

基於UGameplayStatics

獲取運行時間

/** Returns the frame delta time in seconds, adjusted by time dilation. */
UFUNCTION(BlueprintPure, Category = "Utilities|Time", meta = (WorldContext="WorldContextObject"))
static float GetWorldDeltaSeconds(const UObject* WorldContextObject);

/** Returns time in seconds since world was brought up for play, adjusted by time dilation and IS stopped when game pauses */
UFUNCTION(BlueprintPure, Category="Utilities|Time", meta=(WorldContext="WorldContextObject"))
static float GetTimeSeconds(const UObject* WorldContextObject);

/** Returns time in seconds since world was brought up for play, adjusted by time dilation and IS NOT stopped when game pauses */
UFUNCTION(BlueprintPure, Category="Utilities|Time", meta=(WorldContext="WorldContextObject"))
static float GetUnpausedTimeSeconds(const UObject* WorldContextObject);

/** Returns time in seconds since world was brought up for play, does NOT stop when game pauses, NOT dilated/clamped */
UFUNCTION(BlueprintPure, Category="Utilities|Time", meta=(WorldContext="WorldContextObject"))
static float GetRealTimeSeconds(const UObject* WorldContextObject);

/** Returns time in seconds since world was brought up for play, IS stopped when game pauses, NOT dilated/clamped. */
UFUNCTION(BlueprintPure, Category="Utilities|Time", meta=(WorldContext="WorldContextObject"))
static float GetAudioTimeSeconds(const UObject* WorldContextObject);

/** Returns time in seconds since the application was started. Unlike the other time functions this is accurate to the exact time this function is called instead of set once per frame. */
UFUNCTION(BlueprintPure, Category="Utilities|Time", meta=(WorldContext="WorldContextObject"))
static void GetAccurateRealTime(const UObject* WorldContextObject, int32& Seconds, float& PartialSeconds);

設置時間流速

• 設置全局時間流速

  static float GetGlobalTimeDilation(const UObject* WorldContextObject);
  
  static void SetGlobalTimeDilation(const UObject* WorldContextObject, float TimeDilation);
  

• 設置指定Actor時間流速

  AActor* MyActor;
  MyActor->CustomTimeDilation = 0.5f;
  

暫停游戲

static bool SetGamePaused(const UObject* WorldContextObject, bool bPaused);
static bool IsGamePaused(const UObject* WorldContextObject);