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identifier is undefined

i'm trying to cast my aicharacter to hit.getactor but i keep getting this error identifier "Hit" is undefined and for my if statment if my hit.getactor is true then i can apply damage (damageamount) and i get the same error and i'm apply damage to my linetrace

HordeCharacter.cpp

 void AHordeCharacter::OnFire()
 {
 
     
     
     AAI_Character* character = Cast<AAI_Character>(Hit.GetActor);
 
 
     FHitResult Hit(ForceInit);
     
     FVector start = FP_Gun->GetForwardVector();
     FVector End = start + (FP_Gun->GetForwardVector()* 700.f);
     FCollisionQueryParams CollisionParams;
     FVector Start = FP_Gun->GetComponentLocation();
 
     DrawDebugLine(GetWorld(), Start, End, FColor::Green, true, 2.f, false, 4.f);
 
     GetWorld()->LineTraceSingleByChannel(Hit, start, End, ECC_WorldDynamic, CollisionParams);
 
 
     if (Hit.GetActor)
     {
         character->damage(damageamount);
     }
     
 
 
 }



AI character.h health = 5.f; damageamount = 2.f;

 void AAI_Character::damage(float damageamount)
 {
     health = health - damageamount;
 }


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asked Apr 21 '19 at 08:00 AM in C++ Programming

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Eatbootyeveryday
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Hit is indeed undefined at line 6. You need to prepare the Hit struct before you use it like with the Line Trace.

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answered Apr 21 '19 at 08:13 AM

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GarnerP57
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avatar image Eatbootyeveryday Apr 22 '19 at 12:21 AM

thank you the hit is identified but how do i fix the problem with the damageamount i got my AI character .h file in there but it keeps coming up

avatar image GarnerP57 Apr 22 '19 at 08:23 AM

If you fix Hit.GetActor then the Character will no longer be NULL and in turn that should fix the call to damage.

avatar image Eatbootyeveryday Apr 23 '19 at 02:42 AM

thank you everything works but my damageamount still has the error

avatar image GarnerP57 Apr 23 '19 at 08:19 AM

Please be specific. What is the error?

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