Potential fix for #3005

src/main/java/com/gmail/nossr50/listeners/InventoryListener.java

@@ -66,13 +66,10 @@ public class InventoryListener implements Listener {
                     return;
                 }
 
-                //Profile doesn't exist
+                McMMOPlayer mmoPlayer = UserManager.getPlayer(player);
-                if(UserManager.getOfflinePlayer(offlinePlayer) == null) {
-                    return;
-                }
 
-
+                if(mmoPlayer != null) {
-                boolean debugMode = player.isOnline() && UserManager.getPlayer(player).isDebugMode();
+                    boolean debugMode = player.isOnline() && mmoPlayer.isDebugMode();
 
                     if(debugMode) {
                         player.sendMessage("FURNACE FUEL EFFICIENCY DEBUG REPORT");
@@ -81,15 +78,20 @@ public class InventoryListener implements Listener {
                         player.sendMessage("Burn Length before Fuel Efficiency is applied - "+event.getBurnTime());
                     }
 
-                event.setBurnTime(UserManager.getPlayer(player).getSmeltingManager().fuelEfficiency(event.getBurnTime()));
+                    event.setBurnTime(mmoPlayer.getSmeltingManager().fuelEfficiency(event.getBurnTime()));
 
                     if(debugMode) {
                         player.sendMessage("New Furnace Burn Length (after applying fuel efficiency) "+event.getBurnTime());
                         player.sendMessage("");
                     }
-            }
-        }
 
+                    // Potential fix for #3005
+                    if (event.getBurnTime() > 0 && !event.isBurning()) {
+                        event.setBurning(true);
+                    }
+                }
+            }
+        }
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)

src/main/java/com/gmail/nossr50/skills/smelting/SmeltingManager.java

@@ -23,93 +23,28 @@ public class SmeltingManager extends SkillManager {
         super(mcMMOPlayer, PrimarySkillType.SMELTING);
     }
 
-    /*public boolean canUseFluxMining(BlockState blockState) {
-        return getSkillLevel() >= Smelting.fluxMiningUnlockLevel
-                && BlockUtils.affectedByFluxMining(blockState)
-                && Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.SMELTING_FLUX_MINING)
-                && !mcMMO.getPlaceStore().isTrue(blockState);
-    }*/
-
     public boolean isSecondSmeltSuccessful() {
         return Permissions.isSubSkillEnabled(getPlayer(), SubSkillType.SMELTING_SECOND_SMELT)
                 && RandomChanceUtil.isActivationSuccessful(SkillActivationType.RANDOM_LINEAR_100_SCALE_WITH_CAP, SubSkillType.SMELTING_SECOND_SMELT, getPlayer());
     }
 
-    /*
-      Process the Flux Mining ability.
-
-      @param blockState The {@link BlockState} to check ability activation for
-     * @return true if the ability was successful, false otherwise
-     */
-    /*public boolean processFluxMining(BlockState blockState) {
-        Player player = getPlayer();
-
-        if (RandomChanceUtil.checkRandomChanceExecutionSuccess(getPlayer(), SubSkillType.SMELTING_FLUX_MINING, true)) {
-            ItemStack item = null;
-
-            switch (blockState.getType()) {
-                case IRON_ORE:
-                    item = new ItemStack(Material.IRON_INGOT);
-                    break;
-
-                case GOLD_ORE:
-                    item = new ItemStack(Material.GOLD_INGOT);
-                    break;
-
-                default:
-                    break;
-            }
-
-            if (item == null) {
-                return false;
-            }
-
-            if (!EventUtils.simulateBlockBreak(blockState.getBlock(), player, true)) {
-                return false;
-            }
-
-            // We need to distribute Mining XP here, because the block break event gets cancelled
-            applyXpGain(Mining.getBlockXp(blockState), XPGainReason.PVE, XPGainSource.PASSIVE);
-
-            SkillUtils.handleDurabilityChange(getPlayer().getInventory().getItemInMainHand(), Config.getInstance().getAbilityToolDamage());
-
-            Misc.dropItems(Misc.getBlockCenter(blockState), item, isSecondSmeltSuccessful() ? 2 : 1);
-
-            blockState.setType(Material.AIR);
-
-            if (Config.getInstance().getFluxPickaxeSoundEnabled()) {
-                SoundManager.sendSound(player, blockState.getLocation(), SoundType.FIZZ);
-            }
-
-            ParticleEffectUtils.playFluxEffect(blockState.getLocation());
-            return true;
-        }
-
-        return false;
-    }*/
-
     /**
      * Increases burn time for furnace fuel.
      *
      * @param burnTime The initial burn time from the {@link FurnaceBurnEvent}
      */
     public int fuelEfficiency(int burnTime) {
-        return burnTime * getFuelEfficiencyMultiplier();
+        return Math.max(1, burnTime * getFuelEfficiencyMultiplier());
     }
 
     public int getFuelEfficiencyMultiplier()
     {
-        switch(RankUtils.getRank(getPlayer(), SubSkillType.SMELTING_FUEL_EFFICIENCY))
+        return switch (RankUtils.getRank(getPlayer(), SubSkillType.SMELTING_FUEL_EFFICIENCY)) {
-        {
+            case 1 -> 2;
-            case 1:
+            case 2 -> 3;
-                return 2;
+            case 3 -> 4;
-            case 2:
+            default -> 1;
-                return 3;
+        };
-            case 3:
-                return 4;
-            default:
-                return 1;
-        }
     }
 
     public void smeltProcessing(@NotNull FurnaceSmeltEvent furnaceSmeltEvent, @NotNull Furnace furnace) {