Getting access to the GameMode

[jimmyt1988]

Yeah I had a problem doing it this way.



So you have to declare the template type:

	GameState = Cast<AMainGameState>(world->GetGameState<AMainGameState>());

and then you may aswell get rid of the Cast...

However, even with the Cast it doesn't seem to return the GameState set up in the GameMode

Related: https://answers.unrealengine.com/que...urns-null.html ?
related: https://forums.unrealengine.com/show...etworking-test

errr.... I had a typo... YEHAAA IT WORKs.. THANKS ALL... Beers for ALL

[VegasRich]

GameState = Cast<AMainGameState>(world->GetGameState()); // ?

[jimmyt1988]

My GameState is empty.. Any ideas what might be failing?

I am setting the class up in the gamemode:

GameStateClass = AGameState::StaticClass();

and then inside my huds BeginPlay I am calling

UWorld* world = GetWorld();
	GameState = world->GetGameState<AMainGameState>();

[Osman]

hey jimmy, GameMode only exists on the server, so first of all make sure you only call it on the server and use the command that vblanko showed you. Don't use it in the constructor like you're doing since it might not exist yet there, use it in the BeginPlay. I hope it works out for you

[jimmyt1988]

Kumppi, you're right!!! It does end up deriving from AActor... Thanks for slapping me down like the noob I am, hangon lemme see if this works now..

Well looooooky here... It no longer crashes... Now I've got to get this GameState working instead which I didn't realise I was supposed to use instead.

[Kumppi]

Isn't AHUD derived from AActor? If so it should have the BeginPlay function. Weird. Well game mode definitely has it.

[jimmyt1988]

Unfortunately that will not work bro... Once again though, cheers for having a try!!!

[VegasRich]

void ATofuGameGameMode::StartPlay()
{
	DefaultPawnClass = ATofuGameCharacter::StaticClass();
	HUDClass = AMainHUD::StaticClass();
        HUDClass->GameMode = this;
}

maybe? Hopefully?

[jimmyt1988]

Kumppi... The Hud doesn't have a BeginPlay, are you thinking of StartPlay with the GameMode? If so, I have moved into this now:

Doesn't make a difference unfortunately... but thanks for the warning.

ATofuGameGameMode::ATofuGameGameMode(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	// set default pawn class to our character
}

void ATofuGameGameMode::StartPlay()
{
	DefaultPawnClass = ATofuGameCharacter::StaticClass();
	HUDClass = AMainHUD::StaticClass();
}

[Kumppi]

You should never try to access objects in the constructor because, as VegasRich pointed out, there is a chance that they haven't been constructed yet. What you should do is override the BeginPlay function and set the pointer there.

[VegasRich]

Is your HUD object global? If so, perhaps you can have the game mode register itself with your HUD when it comes up.

[jimmyt1988]

Yes, that's correct. It's not there to grab yet... Hopefully someone knows why Thanks for your time though matey

Okay, I hadn't quite grasped what vblanco was saying as it's a new part for me... but apparently it's not working because I am working on client... which I assume means.. my pc? rather than a server... I'll take a look at these PlayerState and GameState thingies... Any other parent declaration place?

[VegasRich]

Then somehow it's not being set. Look at your screenshot - it's NULL....

I see in your HUD constructor you try to get the game mode and set it - my guess is that it doesn't exist at that point.

[jimmyt1988]

Isn't this what I have?... You can see GameMode is of Type ATofuGameMode... and it's a property of HUD:

/**
 * 
 */
UCLASS()
class TOFUGAME_API AMainHUD : public AHUD
{
	GENERATED_UCLASS_BODY()
public:
	TSubobjectPtr<UHUDElementComponent> TofuPoints;
	virtual void DrawHUD() override;
	ATofuGameGameMode* GameMode;
};

[VegasRich]

Looks like those objects are not in the current scope. Perhaps add a member to your HUD to hold a pointer to (or copy of) the game mode and fill it before entering the current state so you have data to look at.