Stage 12: Data storage system

src/main/java/dev/loki/item/ChestLoot.java

@@ -0,0 +1,77 @@
+package dev.loki.item;
+
+import org.bukkit.inventory.ItemStack;
+
+import java.util.Random;
+import java.util.concurrent.ThreadLocalRandom;
+
+public class ChestLoot {
+
+    private final Random random;
+
+    public ChestLoot() {
+        this.random = ThreadLocalRandom.current();
+    }
+
+    public ItemStack rollLoot() {
+        int roll = random.nextInt(100);
+        int currentWeight = 0;
+
+        currentWeight += 30;
+        if (roll < currentWeight) {
+            return createMedkit();
+        }
+
+        currentWeight += 25;
+        if (roll < currentWeight) {
+            return createFlashlight();
+        }
+
+        currentWeight += 25;
+        if (roll < currentWeight) {
+            return createToolbox();
+        }
+
+        currentWeight += 12;
+        if (roll < currentWeight) {
+            return createKey();
+        }
+
+        return createMap();
+    }
+
+    private ItemStack createMedkit() {
+        int charges = 12 + random.nextInt(8);
+        return new ItemMedkit(charges).createItemStack();
+    }
+
+    private ItemStack createFlashlight() {
+        int charges = 6 + random.nextInt(6);
+        return new ItemFlashlight(charges).createItemStack();
+    }
+
+    private ItemStack createToolbox() {
+        int charges = 10 + random.nextInt(10);
+        return new ItemToolbox(charges).createItemStack();
+    }
+
+    private ItemStack createKey() {
+        int charges = 24 + random.nextInt(16);
+        return new ItemKey(charges).createItemStack();
+    }
+
+    private ItemStack createMap() {
+        int charges = 8 + random.nextInt(12);
+        return new ItemMap(charges).createItemStack();
+    }
+
+    public int getRarity(ItemType type) {
+        return switch (type) {
+            case MEDKIT -> 30;
+            case FLASHLIGHT -> 25;
+            case TOOLBOX -> 25;
+            case KEY -> 12;
+            case MAP -> 8;
+        };
+    }
+}