43 - Pickup Widget

Source/Blaster/Weapon/Weapon.cpp

@@ -3,7 +3,9 @@
 
 #include "Weapon.h"
 
+#include "Blaster/Character/BlasterCharacter.h"
 #include "Components/SphereComponent.h"
+#include "Components/WidgetComponent.h"
 
 AWeapon::AWeapon()
 {
@@ -11,7 +13,7 @@ AWeapon::AWeapon()
 	bReplicates = true;
 
 	WeaponMesh = CreateDefaultSubobject<USkeletalMeshComponent>(TEXT("WeaponMesh"));
-	WeaponMesh->SetupAttachment(RootComponent);
+	WeaponMesh->SetupAttachment(WeaponMesh); // WeaponMesh instead?
 
 	SetRootComponent(WeaponMesh);
 
@@ -23,6 +25,9 @@ AWeapon::AWeapon()
 	AreaSphere->SetupAttachment(RootComponent);
 	AreaSphere->SetCollisionResponseToAllChannels(ECollisionResponse::ECR_Ignore);
 	AreaSphere->SetCollisionEnabled(ECollisionEnabled::NoCollision);
+
+	PickupWidget = CreateDefaultSubobject<UWidgetComponent>(TEXT("PickupWidget"));
+	PickupWidget->SetupAttachment(RootComponent);
 }
 
 void AWeapon::BeginPlay()
@@ -33,7 +38,25 @@ void AWeapon::BeginPlay()
 	{
 		AreaSphere->SetCollisionEnabled(ECollisionEnabled::QueryAndPhysics);
 		AreaSphere->SetCollisionResponseToChannel(ECollisionChannel::ECC_Pawn, ECollisionResponse::ECR_Overlap);
+		AreaSphere->OnComponentBeginOverlap.AddDynamic(this, &AWeapon::OnSphereOverlap);
+	}
+
+	if (PickupWidget)
+	{
+		PickupWidget->SetVisibility(false);
 	}
 }
 
-
+void AWeapon::OnSphereOverlap(UPrimitiveComponent* OverlappedComponent,
+                              AActor* OtherActor,
+                              UPrimitiveComponent* OtherComp,
+                              int32 OtherBodyIndex,
+                              bool bFromSweep,
+                              const FHitResult& SweepResult)
+{
+	ABlasterCharacter* BlasterCharacter = Cast<ABlasterCharacter>(OtherActor);
+	if (BlasterCharacter && PickupWidget)
+	{
+		PickupWidget->SetVisibility(true);
+	}
+}

Source/Blaster/Weapon/Weapon.h

@@ -26,8 +26,17 @@ public:
 protected:
 	virtual void BeginPlay() override;
 
-private:
+	UFUNCTION()
+	virtual void OnSphereOverlap(
+		UPrimitiveComponent* OverlappedComponent,
+		AActor* OtherActor,
+		UPrimitiveComponent* OtherComp,
+		int32 OtherBodyIndex,
+		bool bFromSweep,
+		const FHitResult& SweepResult
+	);
 
+private:
 	UPROPERTY(VisibleAnywhere, Category="Weapon Properties")
 	USkeletalMeshComponent* WeaponMesh;
 
@@ -37,7 +46,8 @@ private:
 	UPROPERTY(VisibleAnywhere)
 	EWeaponState WeaponState;
 
+	UPROPERTY(VisibleAnywhere, Category="Weapon Properties")
+	class UWidgetComponent* PickupWidget;
+
 public:
-
-
 };