How to check if game is running

Development Pipeline & Plugins Plugins
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12

I know this thread is very old but the solution I found gives very precise results through the enumerator “EWorldType::Type” present in “Engine/EngineTypes.h” and you can easily extend it for PIE, Game, GamePreview …

Additionally, you can ask every UObject where it is currently running. :wink:

// Utils.h
#pragma once

#include "CoreMinimal.h"
#include "Kismet/BlueprintFunctionLibrary.h"
#include "Utils.generated.h"

UCLASS()
class TTCOMMON_API UUtils : public UBlueprintFunctionLibrary
{
	GENERATED_BODY()
public:
	// returns true if the given 'Object' is instantiated and running in Editor Preview (e.g. Persona, AnimBP...)
	UFUNCTION(BlueprintCallable, Category = "Utils", meta = (Keywords = "editor tools"))
	static bool IsRunningInEditorPreview(UObject* Object);
};

// Utils.cpp
#include "UUtils.h"
#include "Engine/EngineTypes.h"
bool UUtils::IsRunningInEditorPreview(UObject* Object)
{
  if (!Object)
  {
    return false;
  }

  if (auto world = Object->GetWorld())
  {
    return world->WorldType == EWorldType::EditorPreview;
  }

  return false;
}
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