Can not find the function ServerStartFire

Development Programming & Scripting C++
1

Hi,

I study the project ShooterGame, but can not find the function ServerStartFire in engine souce code.
Can anyone tell me about the location of the code?
Thanks!

parts of code:

UFUNCTION(reliable, server, WithValidation)
void ServerStartFire();

UFUNCTION(reliable, server, WithValidation)
void ServerStopFire();

UFUNCTION(reliable, server, WithValidation)
void ServerStartReload();

UFUNCTION(reliable, server, WithValidation)
void ServerStopReload();
2

check the tutorial in my description. Maybe, i say maybe it can help you.

3

Thanks for reply, I guess that some functions about network, for example ServerStartFire, is black box in unreal engine 4 source code.

I can find parts of code in UT2004Scripts, shown as follow:

//// server only ////
event ServerStartFire(byte Mode)
{
if ( (Instigator != None) && (Instigator.Weapon != self) )
{
if ( Instigator.Weapon == None )
Instigator.ServerChangedWeapon(None,self);
else
Instigator.Weapon.SynchronizeWeapon(self);
return;
}

if ( (FireMode[Mode].NextFireTime <= Level.TimeSeconds + FireMode[Mode].PreFireTime)
	&& StartFire(Mode) )
{
    FireMode[Mode].ServerStartFireTime = Level.TimeSeconds;
    FireMode[Mode].bServerDelayStartFire = false;
}
else if ( FireMode[Mode].AllowFire() )
{
    FireMode[Mode].bServerDelayStartFire = true;
}
else
	ClientForceAmmoUpdate(Mode, AmmoAmount(Mode));

}

4

I believe those functions are specific to ShooterGame and not the UE4. You will probably need to make a Weapon class and then add them yourself.

5

I check build file, show below.

public override void SetupBinaries(
    TargetInfo Target,
    ref List<UEBuildBinaryConfiguration> OutBuildBinaryConfigurations,
    ref List<string> OutExtraModuleNames
    )
{
    OutExtraModuleNames.Add("ShooterGame");
}

and check online document, show below.

ExtraModuleNames (List<String>)
List of additional modules to be compiled into the target.

It means that some functions, for example ServerStartFire, are belong to the List of additional modules.
Is it right?

6

ServerStartFire is a function of ShooterGame’s weapon, not engine source code.

And no you can’t append ShooterGame as a module to your own code.

7

Thanks for reply.
Since ServerStartFire is a function of ShooterGame’s weapon, not engine source code, and I can not find this part of code in ShooterGame project source code,
it means that it is not released at ShooterGame project source code.

8

It’s in AShooterWeapon.h and AShooterWeapon.cpp

Trust me, anything you can see is definitely there.

9

I only find those:

ShooterWeapon.cpp (private\weapons): ServerStartFire();
ShooterWeapon.h (public\weapons): void ServerStartFire();

(1) can not find those files: AShooterWeapon.h and AShooterWeapon.cpp
(2) class AShooterWeapon call the function ServerStartFire();
(3) can not find any definiation about the function ServerStartFire();

10

Line 292. Try using Ctrl + F in Visual Studio.

11

I use Source Insight to trace code, and it should work right.

Trace code forder:
D:\UnrealEngineProjects\ShooterGame\Source
D:\UnrealEngineProjects\UnrealEngine-4.10.4-release\Engine\Source\Runtime

12

The ServerStartFire is definitely in the ShooterGame source code, you’re likely missing it as it’s a network function which uses ServerStartFire_Implementation and ServerStartFire_Validate.

13

I got it.
I think it as normal C++ call function.
Thanks for replies.

Code:
UFUNCTION(reliable, server, WithValidation) <== declare as network function
void ServerStartFire();

Code:
void AShooterWeapon::StartFire()
{
if (Role < ROLE_Authority)
{
ServerStartFire(); <== uses ServerStartFire_Implementation and ServerStartFire_Validate
}

if (!bWantsToFire)
{
	bWantsToFire = true;
	DetermineWeaponState();
}

}