UE4 延时调用（定时器）

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我是靠谱客的博主完美棒球，最近开发中收集的这篇文章主要介绍UE4 延时调用（定时器），觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

//.h
// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/GameModeBase.h"
#include "PersonMoveGameModeBase.generated.h"

/**
 * 
 */
UCLASS()
class PERSONMOVE_API APersonMoveGameModeBase : public AGameModeBase
{
	GENERATED_BODY()
	
public:
	//GameMode 的开始是StartPlay
	virtual void StartPlay() override;
	
protected:

	APersonMoveGameModeBase();

	FTimerHandle TimerHandle_TimeCount;
	void CutTime();

	UPROPERTY(BlueprintReadOnly,Category="UI")
	int CountTime;
};

//.cpp
// Fill out your copyright notice in the Description page of Project Settings.

#include "PersonMoveGameModeBase.h"
#include "TimerManager.h"  //定时器

void APersonMoveGameModeBase :: StartPlay()
{
	Super::StartPlay();

	//SetTimer(时间句柄，作用在哪个物体身上，调用的函数,多长时间调用一次，是否要循环，几秒后调用)
  GetWorldTimerManager().SetTimer(TimerHandle_TimeCount, this, &APersonMoveGameModeBase::CutTime, 1.0f, true, 1.0f);

}

APersonMoveGameModeBase::APersonMoveGameModeBase()
{
	CountTime = 3;
	
}

void APersonMoveGameModeBase::CutTime()
{
	CountTime--;
	UE_LOG(LogTemp, Warning, TEXT("%s"), *FString::SanitizeFloat(CountTime));
	if (CountTime == 0)
	{
		//清除时间
		GetWorldTimerManager().ClearTimer(TimerHandle_TimeCount);
	}
	
}