Enabled UMG

Author: weeeBox

Content/Maps/CollectionLevel.umap

@@ -6,6 +6,8 @@ public class BatteryCollector : ModuleRules
 {
 	public BatteryCollector(TargetInfo Target)
 	{
-		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore" });
-	}
+		PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore", "UMG" });
+
+        PrivateDependencyModuleNames.AddRange(new string[] { "Slate", "SlateCore" });
+    }
 }

Source/BatteryCollector/BatteryCollector.Build.cs

@@ -3,6 +3,6 @@
 #ifndef __BATTERYCOLLECTOR_H__
 #define __BATTERYCOLLECTOR_H__
 
-#include "EngineMinimal.h"
+#include "Engine.h"
 
 #endif

Source/BatteryCollector/BatteryCollector.h

@@ -4,6 +4,7 @@
 #include "BatteryCollectorGameMode.h"
 #include "BatteryCollectorCharacter.h"
 #include "Kismet/GameplayStatics.h"
+#include "Blueprint/UserWidget.h"
 
 ABatteryCollectorGameMode::ABatteryCollectorGameMode()
 {
@@ -18,6 +19,27 @@ ABatteryCollectorGameMode::ABatteryCollectorGameMode()
 	DecayRate = 0.01f;
 }
 
+void ABatteryCollectorGameMode::BeginPlay()
+{
+	Super::BeginPlay();
+	ABatteryCollectorCharacter* MyCharacter = Cast<ABatteryCollectorCharacter>(UGameplayStatics::GetPlayerPawn(this, 0));
+	if (MyCharacter)
+	{
+		PowerToWin = (MyCharacter->GetInitialPower())*1.25f;
+	}
+
+	if (HUDWidgetClass != nullptr)
+	{
+		CurrentWidget = CreateWidget<UUserWidget>(GetWorld(), HUDWidgetClass);
+		if (CurrentWidget != nullptr)
+		{
+			CurrentWidget->AddToViewport();
+		}
+	}
+
+	
+}
+
 void ABatteryCollectorGameMode::Tick(float DeltaTime)
 {
 	Super::Tick(DeltaTime);
@@ -29,7 +51,7 @@ void ABatteryCollectorGameMode::Tick(float DeltaTime)
 		// if the character's power is positive
 		if (MyCharacter->GetCurrentPower() > 0)
 		{
-			// decrease the character's power
+			// decrease the character's power using the decay rate
 			MyCharacter->UpdatePower(-DeltaTime*DecayRate*(MyCharacter->GetInitialPower()));
 		}
 	}

Source/BatteryCollector/BatteryCollectorGameMode.cpp

@@ -13,10 +13,28 @@ class ABatteryCollectorGameMode : public AGameMode
 
 	virtual void Tick(float DeltaTime) override;
 
+	/** Returns power needed to win - needed for the HUD */
+	UFUNCTION(BlueprintPure, Category = "Power")
+	float GetPowerToWin() const;
+
+	virtual void BeginPlay() override;
+
 protected:
 	/**The rate at which the character loses power */
-	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite, Category = "Power")
+	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite, Category = "Power", Meta = (BlueprintProtected = "true"))
 	float DecayRate;
+
+	/**The power needed to win the game */
+	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite, Category = "Power", Meta = (BlueprintProtected = "true"))
+	float PowerToWin;
+
+	/** The Widget class to use for our HUD screen */
+	UPROPERTY(EditDefaultsOnly, BlueprintReadWrite, Category = "Power", Meta = (BlueprintProtected = "true"))
+	TSubclassOf<class UUserWidget> HUDWidgetClass;
+
+	/** The instance of the HUD */
+	UPROPERTY()
+	class UUserWidget* CurrentWidget;
 };