Implement pause menu

Readme.md

@@ -14,6 +14,7 @@ A post-mortem technical write-up will be published when the project is done. Unt
 
 | Gameplay System | Pull Request |
 | --- | --- |
+| https://github.com/nucleartide/Chomp/labels/UI | https://github.com/nucleartide/Chomp/pull/29 Implement a pause menu; refactor UI into componentized Widget Blueprints
 | https://github.com/nucleartide/Chomp/labels/UI | https://github.com/nucleartide/Chomp/pull/28 Implement an options/settings menu
 | https://github.com/nucleartide/Chomp/labels/UI | https://github.com/nucleartide/Chomp/pull/27 Finalize start menu UI/UX design
 | https://github.com/nucleartide/Chomp/labels/UI | https://github.com/nucleartide/Chomp/pull/24 Fix scalability, resolution, aspect ratio, and fullscreen mode in shipping build

Source/Chomp/Private/LevelGenerator/LevelDataAsset.h

@@ -7,15 +7,15 @@
 class ULevelSymbolWidget;
 class ABonusSymbol;
 
-UCLASS(BlueprintType)
+UCLASS(BlueprintType, Blueprintable)
 class CHOMP_API ULevelDataAsset : public UDataAsset
 {
 	GENERATED_BODY()
 
 public:
-	UPROPERTY(EditInstanceOnly)
+	UPROPERTY(EditInstanceOnly, BlueprintReadOnly)
 	TSubclassOf<ABonusSymbol> BonusSymbol;
 
-	UPROPERTY(EditInstanceOnly)
+	UPROPERTY(EditInstanceOnly, BlueprintReadOnly)
 	TSubclassOf<ULevelSymbolWidget> BonusSymbolWidget;
 };

Source/Chomp/Private/LevelGenerator/LevelSequenceDataAsset.h

@@ -15,5 +15,6 @@ class CHOMP_API ULevelSequenceDataAsset : public UDataAsset
 	TArray<ULevelDataAsset*> LevelSequence;
 
 public:
+	UFUNCTION(BlueprintCallable)
 	TArray<ULevelDataAsset*> LastThree();
 };

Source/Chomp/Private/UI/LevelIndicatorWidget.cpp

@@ -1,17 +1 @@
 #include "LevelIndicatorWidget.h"
-
-#include "LevelSymbolWidget.h"
-#include "Components/HorizontalBox.h"
-#include "Components/Image.h"
-#include "LevelGenerator/LevelDataAsset.h"
-#include "LevelGenerator/LevelSequenceDataAsset.h"
-
-void ULevelIndicatorWidget::RenderLastThreeLevelSymbols(UWorld* WorldInstance) const
-{
-	for (const auto LastThreeLevels = LevelSequence->LastThree(); const auto Level : LastThreeLevels)
-	{
-		const auto WidgetInstance = CreateWidget<UUserWidget>(WorldInstance, Level->BonusSymbolWidget);
-		check(WidgetInstance);
-		LevelIndicatorContainer->AddChild(WidgetInstance);
-	}
-}

Source/Chomp/Private/UI/LevelIndicatorWidget.h

@@ -13,11 +13,12 @@ class CHOMP_API ULevelIndicatorWidget : public UUserWidget
 {
 	GENERATED_BODY()
 
-	UPROPERTY(meta = (BindWidget))
-	class UHorizontalBox* LevelIndicatorContainer;
-
-	UPROPERTY(EditDefaultsOnly)
+protected:
+	UPROPERTY(EditAnywhere, Category = "LevelIndicatorWidget | Props", BlueprintReadOnly)
 	ULevelSequenceDataAsset* LevelSequence;
+
+	UPROPERTY(meta = (BindWidget), BlueprintReadOnly)
+	class UHorizontalBox* LevelIndicatorContainer;
 
 public:
 	void RenderLastThreeLevelSymbols(UWorld* WorldInstance) const;

Source/Chomp/Private/UI/LivesWidget.h

@@ -4,14 +4,16 @@
 #include "Blueprint/UserWidget.h"
 #include "LivesWidget.generated.h"
 
+class UHorizontalBox;
+
 UCLASS(BlueprintType, Blueprintable)
 class ULivesWidget : public UUserWidget
 {
 	GENERATED_BODY()
 
-public:
+protected:
 	UPROPERTY(meta = (BindWidget), BlueprintReadOnly)
-	class UHorizontalBox* LivesContainer;
+	UHorizontalBox* LivesContainer;
 
 	UPROPERTY(meta = (BindWidget), BlueprintReadOnly)
 	class UTextBlock* OneUpText;

Source/Chomp/Private/UI/UIManager.cpp

@@ -2,42 +2,20 @@
 #include "ChompGameState.h"
 #include "CoreGlobals.h"
 #include "LevelIndicatorWidget.h"
-#include "LivesWidget.h"
 #include "Components/HorizontalBox.h"
 #include "GameFramework/PlayerController.h"
 #include "Kismet/GameplayStatics.h"
 #include "UI/GameOverWidget.h"
 #include "Utils/Debug.h"
 #include "Utils/SafeGet.h"
 
-AUIManager::AUIManager(): AActor()
-{
-	PrimaryActorTick.bCanEverTick = true;
-}
-
 void AUIManager::BeginPlay()
 {
 	Super::BeginPlay();
 
-	const auto World = FSafeGet::World(this);
-
-	ScoreWidgetInstance = CreateWidget(World, ScoreWidget);
-	check(ScoreWidgetInstance);
-	ScoreWidgetInstance->AddToViewport();
-
-	LivesWidgetInstance = CreateWidget(World, LivesWidget);
-	check(LivesWidgetInstance);
-	LivesWidgetInstance->AddToViewport();
-
-	LevelIndicatorWidgetInstance = CreateWidget<ULevelIndicatorWidget>(World, LevelIndicatorWidget);
-	check(LevelIndicatorWidgetInstance);
-	LevelIndicatorWidgetInstance->AddToViewport();
-	LevelIndicatorWidgetInstance->RenderLastThreeLevelSymbols(World);
-
-	const auto GameState = GetWorld()->GetGameState<AChompGameState>();
+	const auto GameState = FSafeGet::GameState<AChompGameState>(this);
 	GameState->OnDotsCleared.AddUniqueDynamic(this, &AUIManager::HandleDotsCleared);
 	GameState->OnGameStateChanged.AddUniqueDynamic(this, &AUIManager::HandlePlayerDeath);
-	GameState->OnLivesChanged.AddUniqueDynamic(this, &AUIManager::HandleLivesChanged);
 }
 
 void AUIManager::EndPlay(const EEndPlayReason::Type EndPlayReason)
@@ -47,20 +25,6 @@ void AUIManager::EndPlay(const EEndPlayReason::Type EndPlayReason)
 	const auto GameState = GetWorld()->GetGameState<AChompGameState>();
 	GameState->OnDotsCleared.RemoveDynamic(this, &AUIManager::HandleDotsCleared);
 	GameState->OnGameStateChanged.RemoveDynamic(this, &AUIManager::HandlePlayerDeath);
-	GameState->OnLivesChanged.RemoveDynamic(this, &AUIManager::HandleLivesChanged);
-
-	ScoreWidgetInstance->RemoveFromParent();
-	LivesWidgetInstance->RemoveFromParent();
-	LevelIndicatorWidgetInstance->RemoveFromParent();
-
-	ScoreWidgetInstance = nullptr;
-	LivesWidgetInstance = nullptr;
-	LevelIndicatorWidgetInstance = nullptr;
-}
-
-void AUIManager::Tick(const float DeltaTime)
-{
-	Super::Tick(DeltaTime);
 }
 
 void AUIManager::HandleDotsCleared()
@@ -117,21 +81,3 @@ void AUIManager::HandleRestartGameClicked()
 	Controller->SetShowMouseCursor(false);
 	Controller->SetInputMode(FInputModeGameOnly());
 }
-
-// ReSharper disable once CppMemberFunctionMayBeConst
-void AUIManager::HandleLivesChanged(const int NumberOfLives)
-{
-	const auto LivesWidgetRef = Cast<ULivesWidget>(LivesWidgetInstance);
-	check(LivesWidgetRef);
-
-	const auto World = FSafeGet::World(this);
-
-	LivesWidgetRef->LivesContainer->ClearChildren();
-
-	for (auto i = 0; i < NumberOfLives; i++)
-	{
-		const auto LifeWidgetInstance = CreateWidget(World, LivesWidgetRef->LifeWidget);
-		LifeWidgetInstance->SetPadding(FMargin(LivesWidgetRef->HorizontalPadding, 0.0));
-		LivesWidgetRef->LivesContainer->AddChild(LifeWidgetInstance);
-	}
-}

Source/Chomp/Private/UI/UIManager.h

@@ -12,9 +12,9 @@ class ULivesWidget;
 class UScoreWidget;
 
 /**
- * AUIManager manages the lifetime of the user interface of the game.
+ * AUIManager manages the lifetime of the user interface when in-game.
  */
-UCLASS()
+UCLASS(BlueprintType, Blueprintable)
 class AUIManager : public AActor
 {
 	GENERATED_BODY()
@@ -55,13 +55,9 @@ class AUIManager : public AActor
 	UPROPERTY(VisibleInstanceOnly)
 	ULevelIndicatorWidget* LevelIndicatorWidgetInstance;
 
-public:
-	AUIManager();
-
 protected:
 	virtual void BeginPlay() override;
 	virtual void EndPlay(const EEndPlayReason::Type EndPlayReason) override;
-	virtual void Tick(float DeltaTime) override;
 
 private:
 	UPROPERTY()
@@ -75,7 +71,4 @@ class AUIManager : public AActor
 
 	UFUNCTION()
 	void HandleRestartGameClicked();
-
-	UFUNCTION()
-	void HandleLivesChanged(const int NumberOfLives);
 };