Add loot items configuration and RARITY enum for item rarity handling

src/main/java/com/alttd/hunger_games/config/LootItems.java

@@ -0,0 +1,40 @@
+package com.alttd.hunger_games.config;
+
+import com.alttd.hunger_games.data_objects.RARITY;
+import org.bukkit.Material;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.List;
+
+public class LootItems extends AbstractConfig {
+    static LootItems config;
+
+    LootItems() {
+        super(
+                new File(File.separator
+                         + "mnt" + File.separator
+                         + "configs" + File.separator
+                         + "HungerGames"),
+                "loot-items.yml");
+    }
+
+    public static void reload() {
+        config = new LootItems();
+        config.readConfig(LootItems.class, null);
+    }
+
+    public static class ITEMS {
+        private static final String prefix = "items.";
+
+        private static final HashMap<RARITY, List<Material>> ITEMS = new HashMap<>();
+
+        @SuppressWarnings("unused")
+        private static void load() {
+            for (RARITY rarity : RARITY.values()) {
+                List<String> materialList = config.getList(prefix, rarity.getConfigName(), ITEMS.get(rarity).stream().map(Material::name));
+                ITEMS.put(rarity, materialList.stream().map(Material::getMaterial).toList());
+            }
+        }
+    }
+}

src/main/java/com/alttd/hunger_games/data_objects/RARITY.java

@@ -0,0 +1,15 @@
+package com.alttd.hunger_games.data_objects;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
+public enum RARITY {
+    COMMON("common"),
+    UNCOMMON("uncommon"),
+    RARE("rare"),
+    EPIC("epic");
+
+    private final String configName;
+}