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Function already has a body (interface)

Hello, When I'm trying to compile my project an error :

 Error    C2084    function 'void IIDamageable::DamageResult(int32)' already has a body

pops up

My .h:

 #pragma once
 #include "Object.h"
 #include "IDamageable.generated.h"
 class UIDamageable : public UInterface
 class IIDamageable
         virtual void TakeDamage(int32 Damage);
         virtual int32& GetMaxHealth() = 0;
         virtual int32& GetCurrentHealth() = 0;
     UFUNCTION(BlueprintImplementableEvent, Category = "Character")
         void DamageResult(int32 cHealth);

and .cpp

 #include "Project.h"
 #include "IDamageable.h"
 #include "Engine.h"
 UIDamageable::UIDamageable(const class FObjectInitializer& ObjectInitializer)
     : UInterface(ObjectInitializer)
 void IIDamageable::TakeDamage(int32 Damage)
     GEngine->AddOnScreenDebugMessage(-1, 5, FColor::Red, "Base class error");
 void IIDamageable::DamageResult(int32 cHealth)
     GEngine->AddOnScreenDebugMessage(-1, 5, FColor::Red, "Base class error");

Product Version: UE 4.10
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asked Dec 17 '15 at 10:01 AM in C++ Programming

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2 answers: sort voted first

Change to this in your .h:

 UFUNCTION(BlueprintCallable, BlueprintNativeEvent, Category = "Character")

and in your .cpp:

 void IIDamageable::DamageResult_Implementation(int32 cHealth)

For a thorough explanation, here is a video (I think you can start at part 3 which is the link, but if you have doubts, you can check the first two parts as well):


Another useful source:


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answered Dec 18 '15 at 09:19 PM

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