Improving multiversion capability

Signed-off-by: Lixfel <agga-games@gmx.de>

FightSystem_14/src/de/steamwar/fightsystem/listener/PersonalKitCreator_14.java

@@ -0,0 +1,32 @@
+/*
+    This file is a part of the SteamWar software.
+
+    Copyright (C) 2020  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package de.steamwar.fightsystem.listener;
+
+import org.bukkit.inventory.ItemStack;
+
+import java.util.Objects;
+
+class PersonalKitCreator_14 {
+    private PersonalKitCreator_14(){}
+
+    static boolean hasAttributeModifier(ItemStack stack){
+        return stack.hasItemMeta() && Objects.requireNonNull(stack.getItemMeta()).hasAttributeModifiers();
+    }
+}

FightSystem_9/src/de/steamwar/fightsystem/listener/PickupArrowListener_9.java

@@ -19,20 +19,14 @@
 
 package de.steamwar.fightsystem.listener;
 
-import de.steamwar.fightsystem.states.FightState;
 import org.bukkit.event.EventHandler;
-import org.bukkit.event.player.PlayerBedEnterEvent;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerPickupArrowEvent;
 
-import java.util.EnumSet;
+class PickupArrowListener_9 implements Listener {
 
-public class SleepListener extends BasicListener{
+    @EventHandler
-
+    public void onArrowPickup(PlayerPickupArrowEvent e){
-	public SleepListener() {
+        e.setCancelled(true);
-		super(EnumSet.allOf(FightState.class));
+    }
-	}
-
-	@EventHandler
-	public void onSleep(PlayerBedEnterEvent e) {
-		e.setCancelled(true);
-	}	
 }

FightSystem_Main/src/de/steamwar/fightsystem/FightSystem.java

@@ -93,10 +93,10 @@ public class FightSystem extends JavaPlugin {
         new TestListener();
         new NormalJoinListener();
         new RankedJoinListener();
-        new SleepListener();
+        new GameplayListener();
         new PersonalKitCreator();
         if(Core.getVersion() > 8)
-            new ExtendedInventoryListener();
+            new VersionDependentListener();
 
         new EnterHandler();
 

FightSystem_Main/src/de/steamwar/fightsystem/listener/GameplayListener.java

@@ -20,23 +20,21 @@
 package de.steamwar.fightsystem.listener;
 
 import de.steamwar.fightsystem.states.FightState;
-import org.bukkit.Material;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.inventory.CraftItemEvent;
 import org.bukkit.event.inventory.FurnaceSmeltEvent;
-import org.bukkit.event.player.PlayerPickupArrowEvent;
+import org.bukkit.event.player.PlayerBedEnterEvent;
-import org.bukkit.inventory.ItemStack;
 
 import java.util.EnumSet;
 
-public class ExtendedInventoryListener extends BasicListener {
+public class GameplayListener extends BasicListener{
 
-    public ExtendedInventoryListener() {
+    public GameplayListener() {
         super(EnumSet.allOf(FightState.class));
     }
 
     @EventHandler
-    public void onArrowPickup(PlayerPickupArrowEvent e){
+    public void onSleep(PlayerBedEnterEvent e) {
         e.setCancelled(true);
     }
 
@@ -47,6 +45,6 @@ public class ExtendedInventoryListener extends BasicListener {
 
     @EventHandler
     public void onFurnace(FurnaceSmeltEvent e){
-        e.setResult(new ItemStack(Material.AIR));
+        e.setCancelled(true);
     }
 }

FightSystem_Main/src/de/steamwar/fightsystem/listener/PersonalKitCreator.java

@@ -46,7 +46,6 @@ import org.bukkit.inventory.PlayerInventory;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Objects;
 import java.util.logging.Level;
 
 public class PersonalKitCreator extends BasicListener {
@@ -156,7 +155,7 @@ public class PersonalKitCreator extends BasicListener {
             return true;
 
         //Check for attribute modifiers
-        if(Core.getVersion() >= 14 && stack.hasItemMeta() && Objects.requireNonNull(stack.getItemMeta()).hasAttributeModifiers()){
+        if(Core.getVersion() >= 14 && PersonalKitCreator_14.hasAttributeModifier(stack)){
             Bukkit.getLogger().log(Level.SEVERE, "Spieler " + player.getName() + " hat versucht ein Item mit einem Attribute-Modifier zu bekommen.");
             return true;
         }

FightSystem_Main/src/de/steamwar/fightsystem/listener/VersionDependentListener.java

@@ -0,0 +1,52 @@
+/* 
+    This file is a part of the SteamWar software.
+    
+    Copyright (C) 2020  SteamWar.de-Serverteam
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+
+package de.steamwar.fightsystem.listener;
+
+import de.steamwar.core.Core;
+import de.steamwar.fightsystem.FightSystem;
+import de.steamwar.fightsystem.states.FightState;
+import org.bukkit.Bukkit;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+
+import java.util.*;
+
+public class VersionDependentListener extends BasicListener {
+
+    private final List<Listener> listeners = new ArrayList<>();
+
+    public VersionDependentListener() {
+        super(EnumSet.allOf(FightState.class));
+        if(Core.getVersion() > 8)
+            listeners.add(new PickupArrowListener_9());
+    }
+
+    @Override
+    public void enable() {
+        for(Listener listener : listeners)
+            Bukkit.getPluginManager().registerEvents(listener, FightSystem.getPlugin());
+    }
+
+    @Override
+    public void disable() {
+        for(Listener listener : listeners)
+            HandlerList.unregisterAll(listener);
+    }
+}