add support for getting protocol using viaversion's api

platforms/velocity/build.gradle.kts

@@ -9,6 +9,7 @@ repositories {
     //mavenLocal()
     maven { url = uri("https://repo.ajg0702.us") }
     maven { url = uri("https://nexus.velocitypowered.com/repository/maven-public/") }
+    maven { url = uri("https://repo.viaversion.com/") }
     mavenCentral()
 }
 
@@ -21,6 +22,8 @@ dependencies {
     annotationProcessor("com.velocitypowered:velocity-api:3.0.0")
     implementation("net.kyori:adventure-text-minimessage:4.0.0-SNAPSHOT")
 
+    compileOnly("com.viaversion:viaversion-api:4.2.0-SNAPSHOT")
+
     implementation("org.bstats:bstats-velocity:2.2.1")
 
     implementation(project(":common"))

platforms/velocity/src/main/java/us/ajg0702/queue/platforms/velocity/players/VelocityPlayer.java

@@ -3,6 +3,7 @@ package us.ajg0702.queue.platforms.velocity.players;
 import com.velocitypowered.api.proxy.Player;
 import com.velocitypowered.api.proxy.ServerConnection;
 import com.velocitypowered.api.proxy.server.RegisteredServer;
+import com.viaversion.viaversion.api.Via;
 import net.kyori.adventure.audience.Audience;
 import net.kyori.adventure.bossbar.BossBar;
 import net.kyori.adventure.sound.Sound;
@@ -73,8 +74,11 @@ public class VelocityPlayer implements AdaptedPlayer, Audience {
 
     final Player handle;
 
+    private final boolean viaAvailable;
+
     public VelocityPlayer(Player player) {
         handle = player;
+        viaAvailable = isClassAvailable("com.viaversion.viaversion.api.Via");
     }
 
     @Override
@@ -166,6 +170,9 @@ public class VelocityPlayer implements AdaptedPlayer, Audience {
 
     @Override
     public int getProtocolVersion() {
+        if(viaAvailable) {
+            return Via.getAPI().getPlayerVersion(handle.getUniqueId());
+        }
         return handle.getProtocolVersion().getProtocol();
     }
 
@@ -188,4 +195,14 @@ public class VelocityPlayer implements AdaptedPlayer, Audience {
     public Player getHandle() {
         return handle;
     }
+
+
+    private static boolean isClassAvailable(String className) {
+        try {
+            Class.forName(className);
+        } catch(Exception e) {
+            return false;
+        }
+        return true;
+    }
 }