fixes

src/main/java/com/gmail/nossr50/skills/herbalism/HerbalismManager.java

@@ -765,21 +765,27 @@ public class HerbalismManager extends SkillManager {
             case "carrots":
                 seed = Material.matchMaterial("CARROT");
                 break;
+
             case "wheat":
                 seed = Material.matchMaterial("WHEAT_SEEDS");
                 break;
+
             case "nether_wart":
-                seed = Material.matchMaterial("NETHER_WART");
+                seed = Material.getMaterial("NETHER_WART");
                 break;
+
             case "potatoes":
                 seed = Material.matchMaterial("POTATO");
                 break;
+
             case "beetroots":
                 seed = Material.matchMaterial("BEETROOT_SEEDS");
                 break;
+
             case "cocoa":
                 seed = Material.matchMaterial("COCOA_BEANS");
                 break;
+
             case "torchflower":
                 seed = Material.matchMaterial("TORCHFLOWER_SEEDS");
                 break;
@@ -798,7 +804,8 @@ public class HerbalismManager extends SkillManager {
             return false;
         }
 
-        if (!playerInventory.contains(seedStack)) {
+        // Check for seeds in both the main hand and off-hand
+        if (!(playerInventory.containsAtLeast(seedStack, 1) || playerInventory.getItemInOffHand().getType() == seed)) {
             NotificationManager.sendPlayerInformation(player, NotificationType.REQUIREMENTS_NOT_MET, "Skills.NeedMore", StringUtils.getPrettyItemString(seed));
             return false;
         }
@@ -807,20 +814,40 @@ public class HerbalismManager extends SkillManager {
             return false;
         }
 
+        // Check if the event should be cancelled based on the sub-skill block event
         if (EventUtils.callSubSkillBlockEvent(player, SubSkillType.HERBALISM_GREEN_THUMB, blockState.getBlock()).isCancelled()) {
             return false;
         } else {
-            playerInventory.removeItem(new ItemStack(seed, 1));
+            boolean seedFound = false;
+            // Retrieve all contents from the player's inventory
+            ItemStack[] inventoryContents = player.getInventory().getContents();
 
-            player.updateInventory();
+            // Iterate through each item in the inventory to find the seed
+            for (ItemStack item : inventoryContents) {
+                if (item != null && item.getType() == seed) {
+                    item.setAmount(item.getAmount() - 1); // Decrement the amount of the seed
+                    if (item.getAmount() <= 0) {
+                        item.setType(Material.AIR); // Completely remove the item if the count goes to zero
+                    }
+                    seedFound = true;
+                    break; // Stop the loop once the seed is found and modified
+                }
+            }
 
+            if (!seedFound) {
+                return false; // Return false if the seed was not found in the inventory
+            }
+
+            player.updateInventory(); // Update the player's inventory to reflect changes
+
+            // Play a sound effect to indicate the item was consumed
             SoundManager.sendSound(player, player.getLocation(), SoundType.ITEM_CONSUMED);
-            return true;
-        }
 
-//        new HerbalismBlockUpdaterTask(blockState).runTaskLater(mcMMO.p, 0);
+            return true; // Return true to indicate the operation was successful
+        }
     }
 
+
     private boolean processGrowingPlants(BlockState blockState, Ageable ageable, BlockBreakEvent blockBreakEvent, boolean greenTerra) {
         //This check is needed
         if(isBizarreAgeable(ageable)) {
@@ -889,4 +916,4 @@ public class HerbalismManager extends SkillManager {
 
         return RankUtils.getRank(getPlayer(), SubSkillType.HERBALISM_GREEN_THUMB);
     }
-}
+}