Add functionality to open a UWorld when clicking New Game button in main menu

Source/Nakatomi/MainMenuUIWidget.cpp

@@ -3,6 +3,8 @@
 
 #include "MainMenuUIWidget.h"
 
+#include "Kismet/GameplayStatics.h"
+
 void UMainMenuUIWidget::NativeConstruct()
 {
 	Super::NativeConstruct();
@@ -30,7 +32,11 @@ void UMainMenuUIWidget::NativeConstruct()
 
 void UMainMenuUIWidget::NewGameButtonOnClicked()
 {
-	// TODO: Implement Functionality
+	// TODO: Replace this is a menu to confirm the user wants to start a new game
+	if (!NewGameLevel.IsNull())
+	{
+		UGameplayStatics::OpenLevelBySoftObjectPtr(GetWorld(), NewGameLevel);	
+	}
 }
 
 void UMainMenuUIWidget::LoadGameButtonOnClicked()
@@ -40,7 +46,13 @@ void UMainMenuUIWidget::LoadGameButtonOnClicked()
 
 void UMainMenuUIWidget::OptionsButtonOnClicked()
 {
-	// TODO: Implement Functionality
+	if (OptionsMenuWidget)
+	{
+		currentOptionsMenuWidget = CreateWidget<UOptionsUIWidget>(GetWorld(), OptionsMenuWidget);
+		currentOptionsMenuWidget->AddToViewport();
+		currentOptionsMenuWidget->SetReturnScreen(this);
+		this->RemoveFromParent();
+	}
 }
 
 void UMainMenuUIWidget::QuitButtonOnClicked()

Source/Nakatomi/MainMenuUIWidget.h

@@ -38,6 +38,9 @@ public:
 	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
 	TSubclassOf<class UUserWidget> OptionsMenuWidget;
 
+	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite)
+	TSoftObjectPtr<UWorld> NewGameLevel;
+
 private:
 	UUserWidget* currentNewGameWidget;