Add Agrarian debug HUD

Source/AgrarianGame/AgrarianDebugHUD.cpp

@@ -0,0 +1,76 @@
+// Copyright Pacificao. All Rights Reserved.
+
+#include "AgrarianDebugHUD.h"
+#include "AgrarianGameCharacter.h"
+#include "AgrarianInventoryComponent.h"
+#include "AgrarianSurvivalComponent.h"
+
+void AAgrarianDebugHUD::DrawHUD()
+{
+	Super::DrawHUD();
+
+	if (!bShowDebugHUD || !Canvas)
+	{
+		return;
+	}
+
+	const AAgrarianGameCharacter* AgrarianCharacter = Cast<AAgrarianGameCharacter>(GetOwningPawn());
+	if (!AgrarianCharacter)
+	{
+		return;
+	}
+
+	float Y = 32.0f;
+	constexpr float X = 32.0f;
+
+	DrawLine(TEXT("AGRARIAN DEV HUD"), X, Y, FColor(160, 220, 140));
+	DrawSurvival(AgrarianCharacter->GetSurvivalComponent(), X, Y);
+	DrawInventory(AgrarianCharacter->GetInventoryComponent(), X, Y);
+}
+
+void AAgrarianDebugHUD::DrawSurvival(const UAgrarianSurvivalComponent* SurvivalComponent, float X, float& Y) const
+{
+	if (!SurvivalComponent)
+	{
+		DrawLine(TEXT("Survival: unavailable"), X, Y, FColor::Red);
+		return;
+	}
+
+	const FAgrarianSurvivalSnapshot& Survival = SurvivalComponent->Survival;
+	DrawLine(FString::Printf(TEXT("Health:  %.0f"), Survival.Health), X, Y);
+	DrawLine(FString::Printf(TEXT("Stamina: %.0f"), Survival.Stamina), X, Y);
+	DrawLine(FString::Printf(TEXT("Hunger:  %.0f"), Survival.Hunger), X, Y);
+	DrawLine(FString::Printf(TEXT("Thirst:  %.0f"), Survival.Thirst), X, Y);
+	DrawLine(FString::Printf(TEXT("Temp:    %.1f C"), Survival.BodyTemperature), X, Y);
+	DrawLine(FString::Printf(TEXT("Injury:  %.0f"), Survival.InjurySeverity), X, Y);
+	Y += 10.0f * TextScale;
+}
+
+void AAgrarianDebugHUD::DrawInventory(const UAgrarianInventoryComponent* InventoryComponent, float X, float& Y) const
+{
+	if (!InventoryComponent)
+	{
+		DrawLine(TEXT("Inventory: unavailable"), X, Y, FColor::Red);
+		return;
+	}
+
+	DrawLine(FString::Printf(TEXT("Inventory: %d/%d slots"), InventoryComponent->Items.Num(), InventoryComponent->MaxSlots), X, Y, FColor(160, 220, 140));
+
+	if (InventoryComponent->Items.IsEmpty())
+	{
+		DrawLine(TEXT("- empty"), X, Y, FColor::Silver);
+		return;
+	}
+
+	for (const FAgrarianItemStack& Stack : InventoryComponent->Items)
+	{
+		const FText DisplayName = Stack.DisplayName.IsEmpty() ? FText::FromName(Stack.ItemId) : Stack.DisplayName;
+		DrawLine(FString::Printf(TEXT("- %s x%d"), *DisplayName.ToString(), Stack.Quantity), X, Y);
+	}
+}
+
+void AAgrarianDebugHUD::DrawLine(const FString& Text, float X, float& Y, const FColor& Color) const
+{
+	DrawText(Text, Color, X, Y, nullptr, TextScale, false);
+	Y += 18.0f * TextScale;
+}

Source/AgrarianGame/AgrarianDebugHUD.h

@@ -0,0 +1,30 @@
+// Copyright Pacificao. All Rights Reserved.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "GameFramework/HUD.h"
+#include "AgrarianDebugHUD.generated.h"
+
+class UAgrarianInventoryComponent;
+class UAgrarianSurvivalComponent;
+
+UCLASS()
+class AAgrarianDebugHUD : public AHUD
+{
+	GENERATED_BODY()
+
+public:
+	virtual void DrawHUD() override;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|HUD")
+	bool bShowDebugHUD = true;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|HUD", meta = (ClampMin = "0.25"))
+	float TextScale = 1.0f;
+
+protected:
+	void DrawSurvival(const UAgrarianSurvivalComponent* SurvivalComponent, float X, float& Y) const;
+	void DrawInventory(const UAgrarianInventoryComponent* InventoryComponent, float X, float& Y) const;
+	void DrawLine(const FString& Text, float X, float& Y, const FColor& Color = FColor::White) const;
+};

Source/AgrarianGame/AgrarianGameGameMode.cpp

@@ -1,9 +1,11 @@
 // Copyright Epic Games, Inc. All Rights Reserved.
 
 #include "AgrarianGameGameMode.h"
+#include "AgrarianDebugHUD.h"
 #include "AgrarianGameState.h"
 
 AAgrarianGameGameMode::AAgrarianGameGameMode()
 {
 	GameStateClass = AAgrarianGameState::StaticClass();
+	HUDClass = AAgrarianDebugHUD::StaticClass();
 }