reduced reources drops

src/engine/gameManager/LootManager.java

@@ -175,6 +175,9 @@ public enum LootManager {
             return null;
 
         if (ItemBase.getItemBase(itemUUID).getType().ordinal() == Enum.ItemType.RESOURCE.ordinal()) {
+            int chance = ThreadLocalRandom.current().nextInt(1,101);
+            if(chance > 10)
+                return null;
             int amount = ThreadLocalRandom.current().nextInt(tableRow.minSpawn, tableRow.maxSpawn + 1);
             return new MobLoot(mob, ItemBase.getItemBase(itemUUID), amount, false);
         }