src/de/steamwar/bungeecore/BungeeCore.java

@@ -20,6 +20,7 @@
 package de.steamwar.bungeecore;
 
 import de.steamwar.bungeecore.commands.*;
+import de.steamwar.bungeecore.comms.SpigotReceiver;
 import de.steamwar.bungeecore.listeners.*;
 import de.steamwar.bungeecore.listeners.mods.Fabric;
 import de.steamwar.bungeecore.listeners.mods.Forge;
@@ -69,6 +70,9 @@ public class BungeeCore extends Plugin {
 
     @Override
     public void onEnable(){
+
+        getProxy().registerChannel("sw:bridge");
+
         setInstance(this);
         loadConfig();
 
@@ -124,6 +128,7 @@ public class BungeeCore extends Plugin {
         new EventStarter();
         new Broadcaster();
         new SessionManager();
+        new SpigotReceiver();
 
         new TablistManager();
 

src/de/steamwar/bungeecore/commands/BauCommand.java

@@ -20,6 +20,8 @@
 package de.steamwar.bungeecore.commands;
 
 import de.steamwar.bungeecore.*;
+import de.steamwar.bungeecore.inventory.SWInventory;
+import de.steamwar.bungeecore.inventory.SWItem;
 import de.steamwar.bungeecore.sql.BauweltMember;
 import de.steamwar.bungeecore.sql.SteamwarUser;
 import net.md_5.bungee.api.ProxyServer;
@@ -226,32 +228,31 @@ public class BauCommand {
     }
 
     private static void delete(ProxiedPlayer p, String[] command){
-        if(bau15(p, command, 2)){
-            BungeeCore.send(p, BungeeCore.CHAT_PREFIX + "§aDeine Welt wird zurückgesetzt.");
-            ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> {
-                for (Subserver subserver : Subserver.getServerList()) {
-                    if (subserver.getType() == Servertype.BAUSERVER && ((Bauserver) subserver).getOwner().equals(p.getUniqueId())) {
-                        subserver.stop();
-                        break;
-                    }
-                }
+        SWInventory inventory = new SWInventory(p, 9, "§eWirklich Welt löschen?");
+        inventory.addItem(8, new SWItem(8, "§cAbbrechen", 1), click -> inventory.close());
+        inventory.addItem(1, new SWItem(1, "§aLöchen", 10), click -> {
+            if(bau15(p, command, 2)){
                 SteamwarUser user = SteamwarUser.get(p.getUniqueId());
-                File directory = new File(BungeeCore.USERWORLDS15 + user.getId());
-                del(directory);
-            });
-        }else{
-            BungeeCore.send(p, BungeeCore.CHAT_PREFIX + "§aDeine Welt wird zurückgesetzt.");
-            ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> {
-                for (Subserver subserver : Subserver.getServerList()) {
-                    if (subserver.getType() == Servertype.BAUSERVER && ((Bauserver) subserver).getOwner().equals(p.getUniqueId())) {
-                        subserver.stop();
-                        break;
-                    }
+                deleteWorld(p, BungeeCore.USERWORLDS15 + user.getId());
+            }else{
+                deleteWorld(p, BungeeCore.WORLD_FOLDER + p.getUniqueId().toString());
+            }
+        });
+        inventory.open();
+    }
+
+    private static void deleteWorld(ProxiedPlayer player, String world) {
+        BungeeCore.send(player, BungeeCore.CHAT_PREFIX + "§aDeine Welt wird zurückgesetzt.");
+        ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> {
+            for (Subserver subserver : Subserver.getServerList()) {
+                if (subserver.getType() == Servertype.BAUSERVER && ((Bauserver) subserver).getOwner().equals(player.getUniqueId())) {
+                    subserver.stop();
+                    break;
                 }
-                File directory = new File(BungeeCore.WORLD_FOLDER + p.getUniqueId().toString());
-                del(directory);
-            });
-        }
+            }
+            File directory = new File(world);
+            del(directory);
+        });
     }
 
     private static void testarena(ProxiedPlayer p, String[] command){

src/de/steamwar/bungeecore/commands/CheckCommand.java

@@ -67,8 +67,8 @@ public class CheckCommand extends BasicCommand {
 
         ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(), () -> {
             List<Schematic> schematics = getSchemsToCheck();
-            if(!schematics.isEmpty())
-                ServerTeamchatCommand.sendToTeam("§7Es sind §e" + schematics.size() + " §7Schematics zu prüfen§8!");
+            if(schematics.size() != currentCheckers.size())
+                ServerTeamchatCommand.sendToTeam("§7Es sind §e" + (schematics.size() - currentCheckers.size()) + " §7Schematics zu prüfen§8!");
         }, 10, 10, TimeUnit.MINUTES);
     }
 

src/de/steamwar/bungeecore/comms/BungeePacket.java

@@ -0,0 +1,47 @@
+/*
+    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.bungeecore.comms;
+
+import com.google.common.io.ByteArrayDataOutput;
+import com.google.common.io.ByteStreams;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+import net.md_5.bungee.api.connection.Server;
+
+import java.io.ByteArrayOutputStream;
+
+public abstract class BungeePacket {
+
+    public void send(Server server) {
+        ByteArrayDataOutput out = ByteStreams.newDataOutput();
+        out.writeByte(getId());
+        ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+        writeVars(out);
+        out.writeUTF(outputStream.toByteArray().toString());
+        server.sendData("sw:bridge", out.toByteArray());
+    }
+
+    public void send(ProxiedPlayer player) {
+        send(player.getServer());
+    }
+
+    public abstract int getId();
+
+    public abstract void writeVars(ByteArrayDataOutput byteArrayDataOutput);
+}

src/de/steamwar/bungeecore/comms/PacketIdManager.java

@@ -0,0 +1,30 @@
+/*
+    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.bungeecore.comms;
+
+public class PacketIdManager {
+
+    //0x0(X) Standalone Packets
+    public final static byte PING_PACKET = 0x01;
+    //0x1(X) Bungee Inventory
+    public final static byte INVENTORY_PACKET = 0x10;
+    public final static byte INVENTORY_CALLBACK_PACKET = 0x11;
+    public final static byte INVENTORY_CLOSE_PACKET = 0x12;
+}

src/de/steamwar/bungeecore/comms/SpigotHandler.java

@@ -0,0 +1,27 @@
+/*
+    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.bungeecore.comms;
+
+import com.google.common.io.ByteArrayDataInput;
+
+public interface SpigotHandler {
+
+    void handle(ByteArrayDataInput byteArrayDataInput);
+}

src/de/steamwar/bungeecore/comms/SpigotReceiver.java

@@ -0,0 +1,57 @@
+/*
+    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.bungeecore.comms;
+
+import com.google.common.io.ByteArrayDataInput;
+import com.google.common.io.ByteStreams;
+import de.steamwar.bungeecore.comms.handlers.InventoryCallbackHandler;
+import de.steamwar.bungeecore.listeners.BasicListener;
+import net.md_5.bungee.api.event.PluginMessageEvent;
+import net.md_5.bungee.event.EventHandler;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class SpigotReceiver extends BasicListener {
+
+    private static final Map<Byte, SpigotHandler> handlerMap = new HashMap<>();
+
+    @EventHandler
+    public void onPluginMessage(PluginMessageEvent event) {
+        if(!event.getTag().equalsIgnoreCase("sw:bridge"))
+            return;
+        if(!event.getSender().getAddress().getHostName().equals("localhost")){
+            event.setCancelled(true);
+            return;
+        }
+        ByteArrayDataInput in = ByteStreams.newDataInput(event.getData());
+        Byte handler = in.readByte();
+        handlerMap.get(handler).handle(in);
+        event.setCancelled(true);
+    }
+
+    public static void registerHandler(Byte id, SpigotHandler handler) {
+        handlerMap.put(id, handler);
+    }
+
+    static {
+        registerHandler(PacketIdManager.INVENTORY_CALLBACK_PACKET, new InventoryCallbackHandler());
+    }
+}

src/de/steamwar/bungeecore/comms/handlers/InventoryCallbackHandler.java

@@ -0,0 +1,56 @@
+/*
+    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.bungeecore.comms.handlers;
+
+import com.google.common.io.ByteArrayDataInput;
+import de.steamwar.bungeecore.comms.SpigotHandler;
+import de.steamwar.bungeecore.inventory.InvCallback;
+import de.steamwar.bungeecore.inventory.SWInventory;
+import de.steamwar.bungeecore.sql.SteamwarUser;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class InventoryCallbackHandler implements SpigotHandler {
+
+    public static final Map<Integer, SWInventory> inventoryHashMap = new HashMap<>();
+
+    @Override
+    public void handle(ByteArrayDataInput byteArrayDataInput) {
+        SteamwarUser owner = SteamwarUser.get(byteArrayDataInput.readInt());
+        CallbackType type = CallbackType.valueOf(byteArrayDataInput.readUTF());
+        if(type == CallbackType.CLICK) {
+            int pos = byteArrayDataInput.readInt();
+            InvCallback.ClickType clickType = InvCallback.ClickType.valueOf(byteArrayDataInput.readUTF());
+            inventoryHashMap.get(owner.getId()).handleCallback(clickType, pos);
+        }else if(type == CallbackType.CLOSE) {
+            if(inventoryHashMap.get(owner.getId()).isNext()) {
+                inventoryHashMap.get(owner.getId()).handleClose();
+                return;
+            }
+            inventoryHashMap.get(owner.getId()).setNext(true);
+        }
+    }
+
+    public enum CallbackType {
+        CLICK,
+        CLOSE,
+    }
+}

src/de/steamwar/bungeecore/comms/packets/CloseInventoryPacket.java

@@ -0,0 +1,45 @@
+/*
+    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.bungeecore.comms.packets;
+
+import com.google.common.io.ByteArrayDataOutput;
+import de.steamwar.bungeecore.comms.BungeePacket;
+import de.steamwar.bungeecore.comms.PacketIdManager;
+import de.steamwar.bungeecore.sql.SteamwarUser;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+public class CloseInventoryPacket extends BungeePacket {
+
+    final ProxiedPlayer player;
+
+    @Override
+    public int getId() {
+        return PacketIdManager.INVENTORY_CLOSE_PACKET;
+    }
+
+    public CloseInventoryPacket(ProxiedPlayer player) {
+        this.player = player;
+    }
+
+    @Override
+    public void writeVars(ByteArrayDataOutput byteArrayDataOutput) {
+        byteArrayDataOutput.writeInt(SteamwarUser.get(player).getId());
+    }
+}

src/de/steamwar/bungeecore/comms/packets/InventoryPacket.java

@@ -0,0 +1,80 @@
+/*
+    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.bungeecore.comms.packets;
+
+import com.google.common.io.ByteArrayDataOutput;
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+import de.steamwar.bungeecore.comms.PacketIdManager;
+import de.steamwar.bungeecore.inventory.SWInventory;
+import de.steamwar.bungeecore.inventory.SWItem;
+import de.steamwar.bungeecore.comms.BungeePacket;
+import de.steamwar.bungeecore.sql.SteamwarUser;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class InventoryPacket extends BungeePacket {
+
+    final String title;
+    final int player;
+    final int size;
+    final Map<Integer, SWItem> items;
+
+    public InventoryPacket(int size, String title, ProxiedPlayer player) {
+        items = new HashMap<>();
+        this.title = title;
+        this.size = size;
+        this.player = SteamwarUser.get(player).getId();
+    }
+
+    public InventoryPacket(SWInventory inventory) {
+        items = inventory.getItems();
+        this.title = inventory.getTitle();
+        this.size = inventory.getSize();
+        this.player = SteamwarUser.get(inventory.getPlayer()).getId();
+    }
+
+    @Override
+    public int getId() {
+        return PacketIdManager.INVENTORY_PACKET;
+    }
+
+    @Override
+    public void writeVars(ByteArrayDataOutput byteArrayDataOutput) {
+        JsonObject object = new JsonObject();
+        object.addProperty("id", player);
+        object.addProperty("title", title);
+        object.addProperty("size", size);
+        object.addProperty("itemcount", items.size());
+        JsonArray array = new JsonArray();
+        for (int i = 0; i < size; i++) {
+            if(items.get(i) != null)
+                array.add(items.get(i).writeToString());
+        }
+        object.add("items", array);
+        byteArrayDataOutput.writeUTF(object.toString());
+    }
+
+    public void setItem(int index, SWItem item) {
+        items.put(index, item);
+    }
+}

src/de/steamwar/bungeecore/comms/packets/PingPacket.java

@@ -0,0 +1,43 @@
+/*
+    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.bungeecore.comms.packets;
+
+import com.google.common.io.ByteArrayDataOutput;
+import de.steamwar.bungeecore.comms.BungeePacket;
+import de.steamwar.bungeecore.comms.PacketIdManager;
+
+public class PingPacket extends BungeePacket {
+
+    final int id;
+
+    @Override
+    public int getId() {
+        return PacketIdManager.PING_PACKET;
+    }
+
+    public PingPacket(int id) {
+        this.id = id;
+    }
+
+    @Override
+    public void writeVars(ByteArrayDataOutput byteArrayDataOutput) {
+        byteArrayDataOutput.writeInt(id);
+    }
+}

src/de/steamwar/bungeecore/inventory/InvCallback.java

@@ -0,0 +1,61 @@
+/*
+    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.bungeecore.inventory;
+
+public interface InvCallback {
+
+    void clicked(ClickType click);
+
+    public static enum ClickType {
+        LEFT,
+        SHIFT_LEFT,
+        RIGHT,
+        SHIFT_RIGHT,
+        WINDOW_BORDER_LEFT,
+        WINDOW_BORDER_RIGHT,
+        MIDDLE,
+        NUMBER_KEY,
+        DOUBLE_CLICK,
+        DROP,
+        CONTROL_DROP,
+        CREATIVE,
+        UNKNOWN;
+
+        public boolean isKeyboardClick() {
+            return this == NUMBER_KEY || this == DROP || this == CONTROL_DROP;
+        }
+
+        public boolean isCreativeAction() {
+            return this == MIDDLE || this == CREATIVE;
+        }
+
+        public boolean isRightClick() {
+            return this == RIGHT || this == SHIFT_RIGHT;
+        }
+
+        public boolean isLeftClick() {
+            return this == LEFT || this == SHIFT_LEFT || this == DOUBLE_CLICK || this == CREATIVE;
+        }
+
+        public boolean isShiftClick() {
+            return this == SHIFT_LEFT || this == SHIFT_RIGHT || this == CONTROL_DROP;
+        }
+    }
+}

src/de/steamwar/bungeecore/inventory/SWInventory.java

@@ -0,0 +1,137 @@
+/*
+    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.bungeecore.inventory;
+
+import de.steamwar.bungeecore.comms.handlers.InventoryCallbackHandler;
+import de.steamwar.bungeecore.comms.packets.CloseInventoryPacket;
+import de.steamwar.bungeecore.comms.packets.InventoryPacket;
+import de.steamwar.bungeecore.sql.SteamwarUser;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class SWInventory {
+
+    private final Map<Integer, SWItem> itemMap;
+    private InvCallback close;
+    private ProxiedPlayer player;
+    private int size;
+    private String title;
+    private boolean next;
+
+    public SWInventory(ProxiedPlayer proxiedPlayer, int size, String title) {
+        itemMap = new HashMap<>();
+        InventoryCallbackHandler.inventoryHashMap.put(SteamwarUser.get(proxiedPlayer).getId(), this);
+        this.player = proxiedPlayer;
+        this.size = size;
+        this.title = title;
+        next = false;
+    }
+
+    public void addItem(SWItem item) {
+        itemMap.put(item.getPosition(), item);
+    }
+
+    public void addItem(int position, SWItem item) {
+        itemMap.put(position, item);
+    }
+
+    public void addItem(int pos, SWItem item, InvCallback callback) {
+        item.setCallback(callback);
+        itemMap.put(pos, item);
+    }
+
+    public void addItem(int pos, SWItem item, String name, InvCallback callback) {
+        item.setCallback(callback);
+        itemMap.put(pos, item);
+    }
+
+    public void removeItem(SWItem item) {
+        itemMap.remove(item.getPosition());
+    }
+
+    public void removeItem(int position) {
+        itemMap.remove(position);
+    }
+
+    public int getSize() {
+        return size;
+    }
+
+    public void setSize(int size) {
+        this.size = size;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public void setCallback(int pos, InvCallback callback) {
+        itemMap.get(pos).setCallback(callback);
+    }
+
+    public void setNext(boolean next) {
+        this.next = next;
+    }
+
+    public boolean isNext() {
+        return next;
+    }
+
+    public Map<Integer, SWItem> getItems() {
+        return itemMap;
+    }
+
+    public void handleCallback(InvCallback.ClickType type, int pos) {
+        itemMap.get(pos).getCallback().clicked(type);
+    }
+
+    public void handleClose() {
+        InventoryCallbackHandler.inventoryHashMap.remove(SteamwarUser.get(player).getId(), this);
+        if(close != null)
+            close.clicked(null);
+    }
+
+    public void open() {
+        InventoryPacket inv = new InventoryPacket(this);
+        inv.send(player);
+    }
+
+    public void close() {
+        new CloseInventoryPacket(player).send(player);
+    }
+
+    public void setClose(InvCallback close) {
+        this.close = close;
+    }
+
+    public ProxiedPlayer getPlayer() {
+        return player;
+    }
+
+    public void setPlayer(ProxiedPlayer player) {
+        this.player = player;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+}

src/de/steamwar/bungeecore/inventory/SWItem.java

@@ -0,0 +1,159 @@
+/*
+    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.bungeecore.inventory;
+
+import com.google.gson.JsonArray;
+import com.google.gson.JsonObject;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class SWItem {
+
+    private String material, title, skullOwner;
+    private boolean enchanted, hideAttributes;
+    private int position;
+    private List<String> lore;
+    private InvCallback callback;
+    private int color;
+
+    public SWItem(String material, int position, String title) {
+        this.material = material.toUpperCase();
+        lore = new ArrayList<>();
+        this.position = position;
+        this.title = title;
+        color = 0;
+    }
+
+    public SWItem(int position, String title, int color) {
+        this.material = "DYE";
+        lore = new ArrayList<>();
+        this.position = position;
+        this.title = title;
+        this.color = color;
+    }
+
+    public static SWItem getSkull(String skullOwner) {
+        SWItem item = new SWItem("SKULL", 1, skullOwner);
+        item.setSkullOwner(skullOwner);
+        return item;
+    }
+
+    public void setCallback(InvCallback callback) {
+        this.callback = callback;
+    }
+
+    public void setColor(int color) {
+        this.color = color;
+    }
+
+    public InvCallback getCallback() {
+        return callback;
+    }
+
+    public String getMaterial() {
+        return material;
+    }
+
+    public void setMaterial(String material) {
+        this.material = material.toUpperCase();
+    }
+
+    public String getSkullOwner() {
+        return skullOwner;
+    }
+
+    public void setSkullOwner(String skullOwner) {
+        this.skullOwner = skullOwner;
+    }
+
+    public boolean isEnchanted() {
+        return enchanted;
+    }
+
+    public void setEnchanted(boolean enchanted) {
+        this.enchanted = enchanted;
+    }
+
+    public boolean isHideAttributes() {
+        return hideAttributes;
+    }
+
+    public void setHideAttributes(boolean hideAttributes) {
+        this.hideAttributes = hideAttributes;
+    }
+
+    public int getPosition() {
+        return position;
+    }
+
+    public void setName(String name) {
+        title = name;
+    }
+
+    public void addLore(String lore) {
+        this.lore.add(lore);
+    }
+
+    public JsonObject writeToString() {
+        JsonObject object = new JsonObject();
+        object.addProperty("material", material);
+        object.addProperty("position", position);
+        object.addProperty("title", title);
+        if(skullOwner != null)
+            object.addProperty("skullOwner", skullOwner);
+        if(enchanted)
+            object.addProperty("enchanted", true);
+        if(hideAttributes)
+            object.addProperty("hideAttributes", true);
+        if(color != 0)
+            object.addProperty("color", color);
+        if(lore != null) {
+            JsonArray array = new JsonArray();
+            for (String lores:
+                 lore) {
+                array.add(lores);
+            }
+            object.add("lore", array);
+        }
+
+        return object;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if(!(o instanceof SWItem))
+            return false;
+        SWItem item = (SWItem) o;
+        if(item.enchanted != enchanted)
+            return false;
+        if(item.hideAttributes != hideAttributes)
+            return false;
+        if(!item.material.equals(material))
+            return false;
+        if(!item.lore.equals(lore))
+            return false;
+        if(!item.skullOwner.equals(skullOwner))
+            return false;
+        if(item.position != position)
+            return false;
+        return true;
+    }
+}

src/de/steamwar/bungeecore/inventory/SWListInv.java

@@ -0,0 +1,145 @@
+/*
+    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.bungeecore.inventory;
+
+import de.steamwar.bungeecore.sql.Schematic;
+import de.steamwar.bungeecore.sql.SchematicType;
+import net.md_5.bungee.BungeeCord;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.util.*;
+
+public class SWListInv<T> extends SWInventory {
+    private ListCallback<T> callback;
+    private List<SWListEntry<T>> elements;
+    private int page;
+
+    public SWListInv(ProxiedPlayer p, String t, List<SWListEntry<T>> l, ListCallback<T> c){
+        super(p, (l.size()>45) ? 54 : (l.size() + 9-l.size()%9), t);
+        callback = c;
+        elements = l;
+        page = 0;
+    }
+
+    @Override
+    public void open(){
+        setCallback(-999, (InvCallback.ClickType click) -> close());
+        if(elements.size() > 54){
+            if(page != 0)
+                addItem(45, new SWItem(45, "§eSeite zurück", 10), (InvCallback.ClickType click) -> {
+                    page--;
+                    open();
+                });
+            else
+                addItem(45, new SWItem(45, "§7Seite zurück", 8), (InvCallback.ClickType click) -> {});
+            if(page < elements.size()/45)
+                addItem(53, new SWItem( 53, "§eSeite vor", 10), "§eSeite vor", (InvCallback.ClickType click) -> {
+                    page++;
+                    open();
+                });
+            else
+                addItem(53, new SWItem(53, "§eSeite vor", 8), (InvCallback.ClickType click) -> {});
+        }
+
+        int ipageLimit = elements.size() - page*45;
+        if(ipageLimit > 45 && elements.size() > 54){
+            ipageLimit = 45;
+        }
+        int i = page*45;
+        for(int ipage=0; ipage < ipageLimit; ipage++ ){
+            SWItem e = elements.get(i).getItem();
+
+            final int pos = i;
+            addItem(ipage, e);
+            setCallback(ipage, (InvCallback.ClickType click) -> callback.clicked(click, elements.get(pos).getObject()));
+            i++;
+        }
+        super.open();
+    }
+
+    public void setCallback(ListCallback<T> c){
+        callback = c;
+    }
+
+    public interface ListCallback<T>{
+        void clicked(InvCallback.ClickType click, T element);
+    }
+
+    public static List<SWListEntry<UUID>> createPlayerList(UUID without){
+        List<SWListEntry<UUID>> onlinePlayers = new ArrayList<>();
+        for(ProxiedPlayer player : BungeeCord.getInstance().getPlayer(without).getServer().getInfo().getPlayers()){
+            if(without != null && player.getUniqueId().equals(without))
+                continue;
+
+            onlinePlayers.add(new SWListEntry<>(SWItem.getSkull(player.getName()), player.getUniqueId()));
+        }
+        return onlinePlayers;
+    }
+
+    public static List<SWListEntry<UUID>> createGlobalPlayerList(UUID without){
+        List<SWListEntry<UUID>> onlinePlayers = new ArrayList<>();
+        for(ProxiedPlayer player : BungeeCord.getInstance().getPlayers()){
+            if(without != null && player.getUniqueId().equals(without))
+                continue;
+
+            onlinePlayers.add(new SWListEntry<>(SWItem.getSkull(player.getName()), player.getUniqueId()));
+        }
+        return onlinePlayers;
+    }
+
+    public static List<SWListEntry<Schematic>> getSchemList(SchematicType type, int steamwarUserId){
+        List<SWListEntry<Schematic>> schemList = new ArrayList<>();
+
+        List<Schematic> schems;
+        if(type == null)
+            schems = Schematic.getSchemsAccessibleByUser(steamwarUserId);
+        else
+            schems = Schematic.getSchemsOfType(steamwarUserId, type);
+
+        for(Schematic s : schems){
+            String m;
+            if(s.getSchemItem().isEmpty())
+                m = "CAULDRON_ITEM";
+            else
+                m = s.getSchemItem();
+            SWItem item = new SWItem(m, 0, "§e" + s.getSchemName());
+            schemList.add(new SWListEntry<>(item, s));
+        }
+        return schemList;
+    }
+
+    public static class SWListEntry<T>{
+        final SWItem item;
+        final T object;
+
+        public SWListEntry(SWItem item, T object){
+            this.item = item;
+            this.object = object;
+        }
+
+        public SWItem getItem(){
+            return item;
+        }
+
+        public T getObject(){
+            return object;
+        }
+    }
+}

src/de/steamwar/bungeecore/listeners/ChatListener.java

@@ -24,6 +24,7 @@ import de.steamwar.bungeecore.Servertype;
 import de.steamwar.bungeecore.Subserver;
 import de.steamwar.bungeecore.commands.BauCommand;
 import de.steamwar.bungeecore.commands.TpCommand;
+import de.steamwar.bungeecore.comms.packets.PingPacket;
 import de.steamwar.bungeecore.sql.SteamwarUser;
 import de.steamwar.bungeecore.sql.Team;
 import net.md_5.bungee.api.ChatColor;
@@ -188,6 +189,7 @@ public class ChatListener extends BasicListener {
             for (String curr : msgSplits) {
                 if(curr.equalsIgnoreCase("@" + target.getName())) {
                     builder.append("§e@").append(target.getName()).append(chatcolor).append(" ");
+                    new PingPacket(SteamwarUser.get(target).getId()).send(target);
                 }else {
                     builder.append(curr).append(" ");
                 }

src/de/steamwar/bungeecore/sql/Schematic.java

@@ -30,12 +30,14 @@ public class Schematic {
     private final String schemName;
     private final int schemOwner;
     private SchematicType schemType;
+    private String schemItem;
 
     private Schematic(ResultSet rs) throws SQLException {
         this.schemID = rs.getInt("SchemID");
         this.schemName = rs.getString("SchemName");
         this.schemOwner = rs.getInt("SchemOwner");
         this.schemType = SchematicType.fromDB(rs.getString("SchemType"));
+        this.schemItem = rs.getString("Item");
     }
 
     public static Schematic getSchemFromDB(String schemName, UUID schemOwner){
@@ -43,7 +45,7 @@ public class Schematic {
     }
 
     public static Schematic getSchemFromDB(String schemName, int schemOwner){
-        ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType FROM Schematic WHERE SchemName = ? AND SchemOwner = ?", schemName, schemOwner);
+        ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType, Item FROM Schematic WHERE SchemName = ? AND SchemOwner = ?", schemName, schemOwner);
         try {
             if(schematic == null || !schematic.next()){
                 return null;
@@ -55,7 +57,7 @@ public class Schematic {
     }
 
     public static Schematic getSchemFromDB(int schemID){
-        ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType FROM Schematic WHERE SchemID = ?", schemID);
+        ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType, Item FROM Schematic WHERE SchemID = ?", schemID);
         try {
             if(!schematic.next())
                 throw new SecurityException("Failed loading schematic " + schemID);
@@ -67,7 +69,7 @@ public class Schematic {
 
     public static List<Schematic> getAllSchemsOfType(SchematicType schemType){
         try{
-            ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType FROM Schematic WHERE SchemType = ?", schemType.toDB());
+            ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType, Item FROM Schematic WHERE SchemType = ?", schemType.toDB());
             List<Schematic> schematics = new ArrayList<>();
             while(schematic.next()){
                 schematics.add(new Schematic(schematic));
@@ -80,7 +82,7 @@ public class Schematic {
 
     public static List<Schematic> getSchemsOfType(int userId, SchematicType schemType){
         try{
-            ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType FROM Schematic WHERE SchemType = ? AND SchemOwner = ?", schemType.toDB(), userId);
+            ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, SchemType, Item FROM Schematic WHERE SchemType = ? AND SchemOwner = ?", schemType.toDB(), userId);
             List<Schematic> schematics = new ArrayList<>();
             while(schematic.next()){
                 schematics.add(new Schematic(schematic));
@@ -91,6 +93,23 @@ public class Schematic {
         }
     }
 
+    public static List<Schematic> getSchemsAccessibleByUser(int schemOwner){
+        try{
+            ResultSet schematic = SQL.select("SELECT SchemID, SchemName, SchemOwner, Item, SchemType, Rank, SchemFormat, Item FROM Schematic WHERE SchemOwner = ? ORDER BY SchemName", schemOwner);
+            List<Schematic> schematics = new ArrayList<>();
+            while(schematic.next()){
+                schematics.add(new Schematic(schematic));
+            }
+            List<SchematicMember> addedSchems = SchematicMember.getAccessibleSchems(schemOwner);
+            for(SchematicMember schem : addedSchems){
+                schematics.add(getSchemFromDB(schem.getSchemName(), schem.getSchemOwner()));
+            }
+            return schematics;
+        }catch(SQLException e){
+            throw new SecurityException("Failed listing schematics", e);
+        }
+    }
+
     public int getSchemID() {
         return schemID;
     }
@@ -103,6 +122,10 @@ public class Schematic {
         return schemOwner;
     }
 
+    public String getSchemItem() {
+        return schemItem;
+    }
+
     public SchematicType getSchemType() {
         return schemType;
     }

src/de/steamwar/bungeecore/sql/SchematicMember.java

@@ -0,0 +1,134 @@
+/*
+    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.bungeecore.sql;
+
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class SchematicMember {
+    private final int schemOwner;
+    private final String schemName;
+    private final int member;
+
+    private SchematicMember(String schemName, int schemOwner, int schemMember, boolean updateDB){
+        this.schemOwner = schemOwner;
+        member = schemMember;
+        this.schemName = schemName;
+        if(updateDB)
+            updateDB();
+    }
+
+    public SchematicMember(String schemName, int schemOwner, int schemMember){
+        this(schemName, schemOwner, schemMember, true);
+    }
+
+    public SchematicMember(String schemName, UUID schemOwner, UUID schemMember){
+        this(schemName, SteamwarUser.get(schemOwner).getId(), SteamwarUser.get(schemMember).getId(), true);
+    }
+
+    private void updateDB(){
+        SQL.update("INSERT INTO SchemMember (SchemName, SchemOwner, Member) VALUES (?, ?, ?)", schemName, schemOwner, member);
+    }
+
+    public static SchematicMember getSchemMemberFromDB(String schemName, UUID schemOwner, UUID schemMember){
+        return getSchemMemberFromDB(schemName, SteamwarUser.get(schemOwner).getId(), SteamwarUser.get(schemMember).getId());
+    }
+
+    public static SchematicMember getSchemMemberFromDB(String schemName, int schemOwner, int schemMember){
+        ResultSet schematicMember = SQL.select("SELECT * FROM SchemMember WHERE SchemName = ? AND SchemOwner = ? AND Member = ?", schemName, schemOwner, schemMember);
+        try {
+            if(schematicMember == null || !schematicMember.next()){
+                return null;
+            }
+            return new SchematicMember(schemName, schemOwner, schemMember, false);
+        } catch (SQLException e) {
+            throw new SecurityException("Could not get schemmember", e);
+        }
+    }
+
+    public static SchematicMember getMemberBySchematic(String schemName, int schemMember){
+        ResultSet schematicMember = SQL.select("SELECT * FROM SchemMember WHERE SchemName = ? AND Member = ?", schemName, schemMember);
+        try {
+            if(schematicMember == null || !schematicMember.next()){
+                return null;
+            }
+            int schemOwner = schematicMember.getInt("SchemOwner");
+            return new SchematicMember(schemName, schemOwner, schemMember, false);
+        } catch (SQLException e) {
+            throw new SecurityException("Could not get member", e);
+        }
+    }
+
+    public static List<SchematicMember> getSchemMembers(String schemName, UUID schemOwner){
+        return getSchemMembers(schemName, SteamwarUser.get(schemOwner).getId());
+    }
+
+    public static List<SchematicMember> getSchemMembers(String schemName, int schemOwner){
+        ResultSet schematicMember = SQL.select("SELECT * FROM SchemMember WHERE SchemName = ? AND SchemOwner = ?", schemName, schemOwner);
+        try {
+            List<SchematicMember> schematicMembers = new ArrayList<>();
+            while(schematicMember.next()){
+                int schemMember = schematicMember.getInt("Member");
+                schematicMembers.add(new SchematicMember(schemName, schemOwner, schemMember, false));
+            }
+            return schematicMembers;
+        } catch (SQLException e) {
+            throw new SecurityException("Could not get schemmembers", e);
+        }
+    }
+
+    public static List<SchematicMember> getAccessibleSchems(UUID schemMember){
+        return getAccessibleSchems(SteamwarUser.get(schemMember).getId());
+    }
+
+    public static List<SchematicMember> getAccessibleSchems(int schemMember){
+        ResultSet schematicMember = SQL.select("SELECT * FROM SchemMember WHERE Member = ?", schemMember);
+        try {
+            List<SchematicMember> schematicMembers = new ArrayList<>();
+            while(schematicMember.next()){
+                String schemName = schematicMember.getString("SchemName");
+                int schemOwner = schematicMember.getInt("SchemOwner");
+                schematicMembers.add(new SchematicMember(schemName, schemOwner, schemMember, false));
+            }
+            return schematicMembers;
+        } catch (SQLException e) {
+            throw new SecurityException("Could not get accessible schems", e);
+        }
+    }
+
+    public int getSchemOwner() {
+        return schemOwner;
+    }
+
+    public String getSchemName() {
+        return schemName;
+    }
+
+    public int getMember() {
+        return member;
+    }
+
+    public void remove(){
+        SQL.update("DELETE FROM SchemMember WHERE SchemOwner = ? AND SchemName = ? AND Member = ?", schemOwner, schemName, member);
+    }
+}