Canvas text does not update

Development Programming & Scripting UI
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1

So I’m making an HUD script for my game for debugging purpose, but when I want to draw a number on the screen that show the Ticking delta second, the number doesn’t change, it keeps showing “0” on the screen, how can I get rid of this problem?

PlayerHUD.h
#pragma once

#include "GameFramework/HUD.h"
#include "PlayerHUD.generated.h"

/**
 *  The Player Heads-up display manager class, responsible for handling and displaying the data from the Player.
 */
UCLASS(Config=Game)
class APlayerHUD : public AHUD
{
	GENERATED_UCLASS_BODY()

public :

	UPROPERTY(Config)
		bool UseDebugCamera;

	bool Debugging = true;
	UFont* theFont;

	float TickRate;
	//Update data by every frame.
	void UpdateData();
	void Display();
	void ConfigO();
	void ConfigI();
	void DrawFText(UFont* font, const FString& str, const float& X, const float& Y, const FLinearColor& textColor, const float& Scale);
	virtual void Tick(float deltaSecond) override;
	virtual void BeginPlay() override;
	virtual void DrawHUD() override;
	
};

PlayerHUD.cpp

#include "../The_Haunting.h"
#include "PlayerHUD.h"
#include "../Public/PlayerPawn.h"
#include "../Public/PlayerInterface.h"


APlayerHUD::APlayerHUD(const class FPostConstructInitializeProperties& PCIP)
	: Super(PCIP)
{
	static ConstructorHelpers::FObjectFinder<UFont> theFontOBJ(TEXT("/Game/Data/UI/Exo_2"));
	this->theFont = theFontOBJ.Object;
}

void APlayerHUD::UpdateData()
{
	

	
}

void APlayerHUD::Display()
{
	
}

void APlayerHUD::ConfigO()
{
	if (!GConfig)
		return;

	FString Section = "Game.Debug";

	GConfig->SetString(*Section, TEXT("UseDebugEyes"), TEXT("FALSE"), GGameIni);

	GConfig->Flush(false, GGameIni);
}

void APlayerHUD::ConfigI()
{
	if (!GConfig)
		return;

	FString boolOperator;
	GConfig->GetString(TEXT("Game.Debug"), TEXT("UseDebugEyes"), boolOperator, GGameIni);

	if (boolOperator == "TRUE" || boolOperator == "True" || boolOperator == "true")
	{
		APlayerHUD::Debugging = true;
	}
	else if (boolOperator == "FALSE" || boolOperator == "False" || boolOperator == "false")
	{
		APlayerHUD::Debugging = false;
	}
	else
	{
		return;
	}
}  
void APlayerHUD::Tick(float deltaSecond)
{
	Super::Tick(deltaSecond);

	APlayerHUD::TickRate = deltaSecond;
}

void APlayerHUD::BeginPlay()
{
	Super::BeginPlay();

	APlayerHUD::ConfigO();
	APlayerHUD::ConfigI();
}

void APlayerHUD::DrawHUD()
{
	Super::DrawHUD();

	APlayerPawn* pawn = Cast<APlayerPawn>(GetOwningPawn());
	FText FTickRate = FText::FromString(FString::FromInt(APlayerHUD::TickRate));
	FLinearColor textColor = FLinearColor(1.0f, 1.0f, 1.0f);

	if (!Canvas)
	{
		return;
	}

	if (APlayerHUD::Debugging)
	{
		Canvas->DrawText(this->theFont, FText::FromString(FString::FromInt(this->TickRate)), 1.0f, 1.0f);
	}

}
2

You defined TickRate as a float variable but you’re using FromInt when converting the value to a string. Should be the source of your problem. :slight_smile:

3

Your Tickrate is float. You should use FString::SanitizeFloat() instead of FSTring::FromInt().

4

Thanks TimGS