Combat text (#4)

- Added the Combat Text Widget
- Wrapped some player classes in blueprints
- Added OnCollision callbacks during movement
- Added all the necessary event bindings to set the text of the combat
text on hit

Source/Test2DPlatformer/BasePawn.cpp

@@ -49,6 +49,12 @@ bool ABasePawn::MoveH(float moveH) {
 			if (entity != nullptr)
 			{
 				SubPixelCounter.X = 0.0f;
+				OnCollide(entity);
+				if (entity->IsA(ABasePawn::StaticClass()))
+				{
+					ABasePawn *BasePawn = Cast<ABasePawn>(entity);
+					BasePawn->OnCollide(entity);
+				}
                 /*
 				if (onCollide != nullptr)
                 {
@@ -79,6 +85,12 @@ bool ABasePawn::MoveV(float moveV) {
 			if (entity != nullptr)
 			{
 				SubPixelCounter.Z = 0.0f;
+				OnCollide(entity);
+				if (entity->IsA(ABasePawn::StaticClass()))
+				{
+					ABasePawn *BasePawn = Cast<ABasePawn>(entity);
+					BasePawn->OnCollide(entity);
+				}
                 /*
 				if (onCollide != nullptr)
                 {
@@ -102,6 +114,12 @@ bool ABasePawn::MoveV(float moveV) {
 			if (entity != nullptr)
 			{
 				SubPixelCounter.Z = 0.0f;
+				OnCollide(entity);
+				if (entity->IsA(ABasePawn::StaticClass()))
+				{
+					ABasePawn *BasePawn = Cast<ABasePawn>(entity);
+					BasePawn->OnCollide(entity);
+				}
                 /*
 				if (onCollide != nullptr)
                 {
@@ -113,6 +131,12 @@ bool ABasePawn::MoveV(float moveV) {
 			if (!IgnoreJumpThrus && ((entity = CollideFirst(TEXT("JumpThru"), GetActorLocation().X, GetActorLocation().Z + 1.0f)) != nullptr))
 			{
 				SubPixelCounter.Z = 0.0f;
+				OnCollide(entity);
+				if (entity->IsA(ABasePawn::StaticClass()))
+				{
+					ABasePawn *BasePawn = Cast<ABasePawn>(entity);
+					BasePawn->OnCollide(entity);
+				}
                 /*
 				if (onCollide != nullptr)
                 {
@@ -220,4 +244,8 @@ FVector ABasePawn::ActualPosition()
 {
     FVector location = GetActorLocation();
     return FVector(location.X + SubPixelCounter.X, location.Y + SubPixelCounter.Y, location.Z + SubPixelCounter.Z);
-}
+}
+
+void ABasePawn::OnCollide(AActor* Actor)
+{
+}

Source/Test2DPlatformer/BasePawn.h

@@ -57,4 +57,5 @@ class TEST2DPLATFORMER_API ABasePawn : public APawn
 
     FVector ActualPosition();
 
+	virtual void OnCollide(AActor *Actor);
 };

Source/Test2DPlatformer/Feedback/PopText.cpp

@@ -0,0 +1,91 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "PopText.h"
+
+#include "PopTextWidget.h"
+#include "Kismet/GameplayStatics.h"
+
+
+// Sets default values
+APopText::APopText()
+{
+	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
+	PrimaryActorTick.bCanEverTick = true;
+
+	Billboard = CreateDefaultSubobject<UBillboardComponent>(TEXT("Billboard"));
+	RootComponent = Billboard;
+
+	Duration = 1.5f;
+	ZFinalOffset = 10;
+}
+
+// Called when the game starts or when spawned
+void APopText::BeginPlay()
+{
+	Super::BeginPlay();
+	UE_LOG(LogTemp, Display, TEXT("Attempting to create widget"));
+	CurrentWidget = CreateWidget<UPopTextWidget>(GetWorld(), StartingWidgetClass);
+	CurrentWidget->AddToViewport();
+
+	CurrentDuration = Duration;
+	CurrentZOffset = 0;
+}
+
+// Called every frame
+void APopText::Tick(float DeltaTime)
+{
+	Super::Tick(DeltaTime);
+	UpdatePosition(DeltaTime);
+}
+
+void APopText::UpdatePosition(float DeltaTime)
+{
+	if (CurrentWidget == nullptr)
+	{
+		return;
+	}
+
+	CurrentDuration -= DeltaTime;
+	if (CurrentDuration <= 0)
+	{
+		CurrentWidget->RemoveFromParent();
+		CurrentWidget = nullptr;
+		return;
+	}
+
+	FVector WorldLocation = GetActorLocation();
+	const float Ratio = (Duration - CurrentDuration) / Duration;
+	CurrentZOffset = ZFinalOffset * Ratio;
+	WorldLocation.Z += CurrentZOffset;
+
+	FVector2d ScreenPosition;
+	UGameplayStatics::ProjectWorldToScreen(GetWorld()->GetFirstPlayerController(), WorldLocation, ScreenPosition);
+	CurrentWidget->SetPositionInViewport(ScreenPosition);
+}
+
+void APopText::SetContent(FString Content)
+{
+	if (CurrentWidget == nullptr)
+	{
+		return;
+	}
+	CurrentWidget->SetContent(Content);
+}
+
+// void APopText::ChangeWidget(TSubclassOf<UUserWidget> NewWidgetClass)
+// {
+// 	if (CurrentWidget != nullptr)
+// 	{
+// 		CurrentWidget->RemoveFromViewport();
+// 		CurrentWidget = nullptr;
+// 	}
+// 	if (NewWidgetClass != nullptr)
+// 	{
+// 		CurrentWidget = CreateWidget<UUserWidget>(GetWorld(), NewWidgetClass);
+// 		if (CurrentWidget != nullptr)
+// 		{
+// 			CurrentWidget->AddToViewport();
+// 		}
+// 	}
+// }

Source/Test2DPlatformer/Feedback/PopText.h

@@ -0,0 +1,53 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Components/BillboardComponent.h"
+#include "Components/WidgetComponent.h"
+#include "GameFramework/Actor.h"
+#include "PopText.generated.h"
+
+class UPopTextWidget;
+
+UCLASS()
+class TEST2DPLATFORMER_API APopText : public AActor
+{
+	GENERATED_BODY()
+
+public:
+	// Sets default values for this actor's properties
+	APopText();
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	TObjectPtr<UBillboardComponent> Billboard;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	TSubclassOf<UPopTextWidget> StartingWidgetClass;
+
+	UPROPERTY(EditAnywhere, BlueprintReadOnly)
+	TObjectPtr<UPopTextWidget> CurrentWidget;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	float Duration;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	float ZFinalOffset;
+
+	float CurrentDuration;
+	float CurrentZOffset;
+protected:
+
+
+
+	// Called when the game starts or when spawned
+	virtual void BeginPlay() override;
+
+public:
+	// Called every frame
+	virtual void Tick(float DeltaTime) override;
+
+	void UpdatePosition(float DeltaTime);
+
+	void SetContent(FString Content);
+};

Source/Test2DPlatformer/Feedback/PopTextWidget.cpp

@@ -0,0 +1,4 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+
+#include "PopTextWidget.h"

Source/Test2DPlatformer/Feedback/PopTextWidget.h

@@ -0,0 +1,21 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Blueprint/UserWidget.h"
+#include "PopTextWidget.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class TEST2DPLATFORMER_API UPopTextWidget : public UUserWidget
+{
+	GENERATED_BODY()
+
+public:
+	UFUNCTION(BlueprintImplementableEvent, Category="Something")
+	void SetContent(const FString &Content);
+
+};