Send Server version to Client when version differs

BauSystem/BauSystem_Main/build.gradle.kts

@@ -38,6 +38,7 @@ dependencies {
     compileOnly(libs.spigotapi)
     compileOnly(libs.axiom)
     compileOnly(libs.authlib)
+    compileOnly(libs.viaapi)
 
     compileOnly(libs.nms20)
     compileOnly(libs.fawe18)

BauSystem/BauSystem_Main/src/BauSystem.properties

@@ -1012,3 +1012,5 @@ COLORREPLACE_HELP=§8//§ecolorreplace §8[§7color§8] §8[§7color§8] §8- §
 TYPEREPLACE_HELP=§8//§etypereplace §8[§7type§8] §8[§7type§8] §8- §7Replace all blocks of one type with another
 # Schematic
 SCHEMATIC_GUI_ITEM=§eSchematics
+#VersionAnnouncer
+SERVER_VERSION=§7This server runs on Minecraft version §e{0}

BauSystem/BauSystem_Main/src/BauSystem_de.properties

@@ -953,3 +953,5 @@ COLORREPLACE_HELP=§8//§ecolorreplace §8[§7color§8] §8[§7color§8] §8- §
 TYPEREPLACE_HELP=§8//§etyreplace §8[§7type§8] §8[§7type§8] §8- §7Ersetzt einen Blockgruppe mit einer anderen
 # Schematics
 SCHEMATIC_GUI_ITEM=§eSchematics
+#VersionAnnouncer
+SERVER_VERSION=§7Dieser Server läuft auf Minecraft-Version §e{0}

BauSystem/BauSystem_Main/src/de/steamwar/bausystem/utils/VersionAnnouncer.java

@@ -0,0 +1,48 @@
+/*
+ *     This file is a part of the SteamWar software.
+ *
+ *     Copyright (C) 2024  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.bausystem.utils;
+
+import com.viaversion.viaversion.api.Via;
+import com.viaversion.viaversion.api.ViaAPI;
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.linkage.Linked;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+
+@Linked
+public class VersionAnnouncer implements Listener {
+
+    private final String versionString = Bukkit.getBukkitVersion().split("-", 2)[0];
+
+    @SuppressWarnings("unchecked")
+    private final ViaAPI<Player> via = Via.getAPI();
+
+    @EventHandler
+    public void onJoin(PlayerJoinEvent event) {
+        Player player = event.getPlayer();
+        if(via.getServerVersion().supportedVersions().contains(via.getPlayerVersion(player)))
+            return;
+
+        BauSystem.MESSAGE.send("SERVER_VERSION", player, versionString);
+    }
+}

BauSystem/BauSystem_Main/src/plugin.yml

@@ -2,6 +2,8 @@ name: BauSystem
 authors: [ Lixfel, YoyoNow, Chaoscaot, Zeanon, D4rkr34lm ]
 version: "2.0"
 depend: [ WorldEdit, SpigotCore ]
+softdepend:
+  - ViaVersion
 load: POSTWORLD
 main: de.steamwar.bausystem.BauSystem
 api-version: "1.13"