From 5e8a2ead23d2d5b2444517d130ac1111ebacd9b2 Mon Sep 17 00:00:00 2001
From: Bill <bunnkywhat@gmail.com>
Date: Sun, 10 Dec 2023 08:57:18 -0500
Subject: [PATCH] Fix pack stacking exploit

---
 .../listeners/SeedPackListener.java           | 53 ++++++++++---------
 1 file changed, 28 insertions(+), 25 deletions(-)

diff --git a/src/main/java/dev/sefiraat/cultivation/implementation/listeners/SeedPackListener.java b/src/main/java/dev/sefiraat/cultivation/implementation/listeners/SeedPackListener.java
index 4a08058..ca58b00 100644
--- a/src/main/java/dev/sefiraat/cultivation/implementation/listeners/SeedPackListener.java
+++ b/src/main/java/dev/sefiraat/cultivation/implementation/listeners/SeedPackListener.java
@@ -38,35 +38,38 @@ public void onPickupItem(@Nonnull EntityPickupItemEvent event) {
         for (ItemStack content : player.getInventory().getContents()) {
             SlimefunItem packItem = SlimefunItem.getByItem(content);
             if (packItem instanceof SeedPack) {
-                ItemMeta contentMeta = content.getItemMeta();
-                SeedPackInstance instance = PersistentDataAPI.get(
-                    contentMeta,
-                    SeedPackDataType.KEY,
-                    SeedPackDataType.TYPE
-                );
+                int packStack = content.getAmount();
+                if (packStack <= 1) {
+                    ItemMeta contentMeta = content.getItemMeta();
+                    SeedPackInstance instance = PersistentDataAPI.get(
+                        contentMeta,
+                        SeedPackDataType.KEY,
+                        SeedPackDataType.TYPE
+                    );
 
-                if (instance == null || !instance.getStoredItemId().equals(plant.getId())) {
-                    continue;
-                }
+                    if (instance == null || !instance.getStoredItemId().equals(plant.getId())) {
+                        continue;
+                    }
 
-                ItemMeta dropMeta = itemStack.getItemMeta();
-                FloraLevelProfile profile = PersistentDataAPI.get(
-                    dropMeta,
-                    FloraLevelProfileDataType.KEY,
-                    FloraLevelProfileDataType.TYPE
-                );
+                    ItemMeta dropMeta = itemStack.getItemMeta();
+                    FloraLevelProfile profile = PersistentDataAPI.get(
+                        dropMeta,
+                        FloraLevelProfileDataType.KEY,
+                        FloraLevelProfileDataType.TYPE
+                    );
 
-                if (profile == null) {
-                    continue;
-                }
+                    if (profile == null) {
+                        continue;
+                    }
 
-                instance.add(profile, itemStack.getAmount());
-                PersistentDataAPI.set(contentMeta, SeedPackDataType.KEY, SeedPackDataType.TYPE, instance);
-                content.setItemMeta(contentMeta);
-                event.setCancelled(true);
-                ParticleUtils.displayParticleRandomly(item, 0.5, 5, plant.getTheme().getDustOptions(1));
-                item.remove();
-                return;
+                    instance.add(profile, itemStack.getAmount());
+                    PersistentDataAPI.set(contentMeta, SeedPackDataType.KEY, SeedPackDataType.TYPE, instance);
+                    content.setItemMeta(contentMeta);
+                    event.setCancelled(true);
+                    ParticleUtils.displayParticleRandomly(item, 0.5, 5, plant.getTheme().getDustOptions(1));
+                    item.remove();
+                    return;
+                }
             }
         }
     }