Section 10: Outline and Glow Effects - Lecture 197

Set post process Highlight color from data table

Source/Shooter/Item.cpp

@@ -171,13 +171,55 @@ void AItem::InitializeCustomDepth()
 
 void AItem::OnConstruction(const FTransform& Transform)
 {
-	if (MaterialInstance)
-	{
-		DynamicMaterialInstance = UMaterialInstanceDynamic::Create(MaterialInstance, this);
-		ItemMesh->SetMaterial(MaterialIndex, DynamicMaterialInstance);
-	}
+	// Path to the Item Rarity Data Table
+	FString RarityTablePath(TEXT("/Script/Engine.DataTable'/Game/_Game/DataTable/ItemRarityDataTable.ItemRarityDataTable'"));
 
-	EnableGlowMaterial();
+	// Load the data in the table
+	UDataTable* RarityTableObject = Cast<UDataTable>(StaticLoadObject(UDataTable::StaticClass(), nullptr, *RarityTablePath));
+	if (RarityTableObject)
+	{
+		FItemRarityTable* RarityRow = nullptr;
+		switch (ItemRarity)
+		{
+		case EItemRarity::EIR_Common:
+			RarityRow = RarityTableObject->FindRow<FItemRarityTable>(FName("Common"), TEXT(""));
+			break;
+		case EItemRarity::EIR_Uncommon:
+			RarityRow = RarityTableObject->FindRow<FItemRarityTable>(FName("Uncommon"), TEXT(""));
+			break;
+		case EItemRarity::EIR_Rare:
+			RarityRow = RarityTableObject->FindRow<FItemRarityTable>(FName("Rare"), TEXT(""));
+			break;
+		case EItemRarity::EIR_Legendary:
+			RarityRow = RarityTableObject->FindRow<FItemRarityTable>(FName("Legendary"), TEXT(""));
+			break;
+		case EItemRarity::EIR_Damaged:
+		default:
+			RarityRow = RarityTableObject->FindRow<FItemRarityTable>(FName("Damaged"), TEXT(""));
+		}
+
+		if (RarityRow)
+		{
+			GlowColor = RarityRow->GlowColor;
+			LightColor = RarityRow->LightColor;
+			DarkColor = RarityRow->DarkColor;
+			NumberOfStars = RarityRow->NumberOfStars;
+			IconBackground = RarityRow->IconBackground;
+			if (GetItemMesh())
+			{
+				GetItemMesh()->SetCustomDepthStencilValue(RarityRow->CustomDepthStencil);
+			}
+
+			if (MaterialInstance)
+			{
+				DynamicMaterialInstance = UMaterialInstanceDynamic::Create(MaterialInstance, this);
+				DynamicMaterialInstance->SetVectorParameterValue(TEXT("FresnelColor"), GlowColor);
+				ItemMesh->SetMaterial(MaterialIndex, DynamicMaterialInstance);
+
+				EnableGlowMaterial();
+			}
+		}
+	}
 }
 
 void AItem::UpdatePulse()

Source/Shooter/Item.h

@@ -4,6 +4,8 @@
 
 #include "CoreMinimal.h"
 #include "GameFramework/Actor.h"
+#include "Engine/DataTable.h"
+
 #include "Item.generated.h"
 
 class UBoxComponent;
@@ -13,6 +15,7 @@ class UCurveFloat;
 class AShooterCharacter;
 class USoundCue;
 class UCurveVector;
+class UDataTable;
 
 UENUM(BlueprintType)
 enum class EItemRarity : uint8
@@ -47,6 +50,30 @@ enum class EItemType : uint8
 	EIT_MAX UMETA(DisplayName = "DefaultMAX")
 };
 
+USTRUCT(BlueprintType)
+struct FItemRarityTable : public FTableRowBase
+{
+	GENERATED_BODY()
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	FLinearColor GlowColor;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	FLinearColor LightColor;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	FLinearColor DarkColor;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	int32 NumberOfStars;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	UTexture2D* IconBackground;
+
+	UPROPERTY(EditAnywhere, BlueprintReadWrite)
+	int32 CustomDepthStencil;
+};
+
 UCLASS()
 class SHOOTER_API AItem : public AActor
 {
@@ -131,14 +158,6 @@ private:
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Item Properties", meta = (AllowPrivateAccess = true))
 	int32 ItemCount;
 
-	/* Item rarity - determines number of stars in Pickup Widget */
-	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = "Item Properties", meta = (AllowPrivateAccess = true))
-	EItemRarity ItemRarity;
-
-	/* Item rarity - determines number of stars in Pickup Widget */
-	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Item Properties", meta = (AllowPrivateAccess = true))
-	TArray<bool> ActiveStars;
-
 	/** State of the Item */
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = "Item Properties", meta = (AllowPrivateAccess = true))
 	EItemState ItemState;
@@ -236,10 +255,6 @@ private:
 	UPROPERTY(VisibleAnywhere, Category = "Item Properties", meta = (AllowPrivateAccess = true))
 	float FresnelReflectFraction;
 
-	/** Background for this item in the inventory */
-	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = Inventory, meta = (AllowPrivateAccess = true))
-	UTexture2D* IconBackground;
-
 	/** Icon for this item in the inventory */
 	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = Inventory, meta = (AllowPrivateAccess = true))
 	UTexture2D* IconItem;
@@ -256,6 +271,37 @@ private:
 	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Inventory, meta = (AllowPrivateAccess = true))
 	bool bCharacterInventoryFull;
 
+	/* Item rarity - determines number of stars in Pickup Widget */
+	UPROPERTY(EditAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	EItemRarity ItemRarity;
+
+	/* Item rarity - determines number of stars in Pickup Widget */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	TArray<bool> ActiveStars;
+
+	/** Item Rarity data table */
+	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	UDataTable* ItemRarityDataTable;
+
+	/** Color in the glow material */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	FLinearColor GlowColor;
+
+	/** Light color in the pickup widget */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	FLinearColor LightColor;
+
+	/** Dark color in the pickup widget */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	FLinearColor DarkColor;
+
+	/** Number of stars in the pickup widget */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	int32 NumberOfStars;
+
+	/** Background icon for the inventory */
+	UPROPERTY(VisibleAnywhere, BlueprintReadOnly, Category = Rarity, meta = (AllowPrivateAccess = true))
+	UTexture2D* IconBackground;
 public:
 	FORCEINLINE UWidgetComponent* GetPickupWidget() const { return PickupWidget; }