Replace TeamManager with PresetTeam GUI system

Replace the old dynamic /team invite system with a fixed GUI-based preset team implementation. Removes TeamManager, Team, TeamListener and the TeamCommand, and introduces PresetTeam, PresetTeamManager and GUI listeners/menus (TeamSelectionMenu/TeamSelectionListener). Codepaths that referenced teamManager were migrated to presetTeamManager (GameManager win/compass logic, Lunar rich presence, Oracle perk, scoreboards, tablist, lobby items). Lobby now shows a team wool item when teams are enabled and the tablist/scoreboard display and prefix logic were adapted to reflect preset teams. Configuration supports teams.enabled, teams.preset-count and teams.max-size; scheduled invite cleanup and old team-reset logic were removed accordingly.

src/main/kotlin/club/mcscrims/speedhg/SpeedHG.kt

@@ -7,7 +7,6 @@ import club.mcscrims.speedhg.command.KitCommand
 import club.mcscrims.speedhg.command.LeaderboardCommand
 import club.mcscrims.speedhg.command.PerksCommand
 import club.mcscrims.speedhg.command.RankingCommand
-import club.mcscrims.speedhg.command.TeamCommand
 import club.mcscrims.speedhg.command.TimerCommand
 import club.mcscrims.speedhg.config.CustomGameManager
 import club.mcscrims.speedhg.config.LanguageManager
@@ -48,8 +47,8 @@ import club.mcscrims.speedhg.ranking.RankingManager
 import club.mcscrims.speedhg.scoreboard.ScoreboardManager
 import club.mcscrims.speedhg.scoreboard.TablistManager
 import club.mcscrims.speedhg.scoreboard.VolcanoServerRankProvider
-import club.mcscrims.speedhg.team.TeamListener
+import club.mcscrims.speedhg.team.gui.PresetTeamManager
-import club.mcscrims.speedhg.team.TeamManager
+import club.mcscrims.speedhg.team.gui.TeamSelectionListener
 import club.mcscrims.speedhg.webhook.DiscordWebhookManager
 import club.mcscrims.speedhg.world.DataPackManager
 import club.mcscrims.speedhg.world.SurfaceBlockPopulator
@@ -115,9 +114,6 @@ class SpeedHG : JavaPlugin() {
 	lateinit var dataPackManager: DataPackManager
 		private set
 
-	lateinit var teamManager: TeamManager
-		private set
-
 	lateinit var lunarClientManager: LunarClientManager
 		private set
 
@@ -130,6 +126,9 @@ class SpeedHG : JavaPlugin() {
 	lateinit var lobbyAnnouncer: LobbyAnnouncer
 		private set
 
+	lateinit var presetTeamManager: PresetTeamManager
+		private set
+
 	override fun onLoad()
 	{
 		instance = this
@@ -189,17 +188,11 @@ class SpeedHG : JavaPlugin() {
 		lunarClientManager    = LunarClientManager( this )
 		lobbyItemManager      = LobbyItemManager( this )
 		tablistManager        = TablistManager( this, VolcanoServerRankProvider() )
+		presetTeamManager     = PresetTeamManager( this )
 
 		perkManager = PerkManager( this )
 		perkManager.initialize()
 
-		teamManager = TeamManager( this )
-
-		// Cleanup-Task für abgelaufene Einladungen (1x/Sekunde)
-		Bukkit.getScheduler().runTaskTimer( this, { ->
-			teamManager.cleanExpiredInvites()
-		}, 20L, 20L )
-
 		disasterManager = DisasterManager( this )
 		disasterManager.start()
 
@@ -220,7 +213,6 @@ class SpeedHG : JavaPlugin() {
 		podiumManager.cleanup()
 		if ( ::lobbyAnnouncer.isInitialized )  lobbyAnnouncer.stop()
 		if ( ::perkManager.isInitialized )     perkManager.shutdown()
-		if ( ::teamManager.isInitialized )     teamManager.reset()
 		if ( ::tablistManager.isInitialized )  tablistManager.shutdown()
 		if ( ::statsManager.isInitialized )    statsManager.shutdown()
 		if ( ::databaseManager.isInitialized ) databaseManager.disconnect()
@@ -288,12 +280,6 @@ class SpeedHG : JavaPlugin() {
 			tabCompleter = rankingCommand
 		}
 
-		val teamCommand = TeamCommand()
-		getCommand( "team" )?.apply {
-			setExecutor( teamCommand )
-			tabCompleter = teamCommand
-		}
-
 		getCommand( "leaderboard" )?.setExecutor( LeaderboardCommand() )
 		getCommand( "perks" )?.setExecutor( PerksCommand() )
 		getCommand( "help" )?.setExecutor( HelpCommand() )
@@ -310,10 +296,10 @@ class SpeedHG : JavaPlugin() {
 		pm.registerEvents( StatsListener(), this )
 		pm.registerEvents( MenuListener(), this )
 		pm.registerEvents(PerkEventDispatcher( this, perkManager ), this )
-		pm.registerEvents( TeamListener(), this )
 		pm.registerEvents( lobbyItemManager, this )
 		pm.registerEvents(ChatListener( this, VolcanoServerRankProvider() ), this )
 		pm.registerEvents(KnockbackListener( this ), this )
+		pm.registerEvents(TeamSelectionListener( this ), this )
 	}
 
 	private fun registerRecipes()

src/main/kotlin/club/mcscrims/speedhg/client/LunarClientManager.kt

@@ -48,7 +48,7 @@ class LunarClientManager(
 	private fun setRichPresence(
 		player: ApolloPlayer
 	) {
-		val teamSize = plugin.teamManager.getTeam( player.uniqueId )?.size ?: 1
+		val teamSize = plugin.presetTeamManager.getTeam( player.uniqueId )?.size ?: 1
 		val currentState = plugin.gameManager.currentState.name
 
 		val presence = ServerRichPresence.builder()
@@ -57,7 +57,7 @@ class LunarClientManager(
 			.gameVariantName(plugin.config.getString( "lunarclient.variantName" ))
 			.playerState( currentState )
 			.teamCurrentSize( teamSize )
-			.teamMaxSize( plugin.teamManager.maxTeamSize )
+			.teamMaxSize( plugin.presetTeamManager.maxTeamSize )
 			.build()
 
 		richPresenceModule.overrideServerRichPresence( player, presence )

src/main/kotlin/club/mcscrims/speedhg/command/TeamCommand.kt

@@ -1,232 +0,0 @@
-package club.mcscrims.speedhg.command
-
-import club.mcscrims.speedhg.SpeedHG
-import club.mcscrims.speedhg.game.GameState
-import club.mcscrims.speedhg.team.TeamManager
-import club.mcscrims.speedhg.util.sendMsg
-import org.bukkit.command.Command
-import org.bukkit.command.CommandExecutor
-import org.bukkit.command.CommandSender
-import org.bukkit.command.TabCompleter
-import org.bukkit.entity.Player
-
-class TeamCommand : CommandExecutor, TabCompleter {
-
-	private val plugin get() = SpeedHG.instance
-
-	// ── Guard: Teams nur in Lobby-Phasen ändern ──────────────────────────────
-
-	private fun isLobbyPhase(): Boolean = when (plugin.gameManager.currentState) {
-		GameState.LOBBY, GameState.STARTING -> true
-		else -> false
-	}
-
-	// =========================================================================
-	//  onCommand dispatch
-	// =========================================================================
-
-	override fun onCommand(
-		sender: CommandSender,
-		command: Command,
-		label: String,
-		args: Array<out String>
-	): Boolean {
-		val player = sender as? Player ?: run {
-			sender.sendMessage("§cOnly players can use this command.")
-			return true
-		}
-
-		if (!plugin.teamManager.isEnabled) {
-			player.sendMsg("team.disabled")
-			return true
-		}
-
-		when (args.firstOrNull()?.lowercase()) {
-			"invite" -> handleInvite(player, args)
-			"accept" -> handleAccept(player, args)
-			"deny"   -> handleDeny(player, args)
-			"leave"  -> handleLeave(player)
-			"kick"   -> handleKick(player, args)
-			"info"   -> handleInfo(player)
-			else     -> player.sendMsg("team.usage")
-		}
-
-		return true
-	}
-
-	// =========================================================================
-	//  Subcommand Handlers
-	// =========================================================================
-
-	private fun handleInvite(player: Player, args: Array<out String>) {
-		if (!isLobbyPhase()) { player.sendMsg("team.game_running"); return }
-
-		val targetName = args.getOrNull(1) ?: run { player.sendMsg("team.invite.usage"); return }
-		val target = plugin.server.getPlayerExact(targetName) ?: run {
-			player.sendMsg("team.player_not_found", "name" to targetName); return
-		}
-
-		when (plugin.teamManager.invite(player, target)) {
-			is TeamManager.InviteResult.Success -> {
-				player.sendMsg("team.invite.sent", "name" to target.name)
-				target.sendMsg("team.invite.received",
-					"name" to player.name,
-					"time" to (TeamManager.INVITE_TTL_MS / 1000).toString()
-				)
-			}
-			is TeamManager.InviteResult.TeamsDisabled      -> player.sendMsg("team.disabled")
-			is TeamManager.InviteResult.InvitedSelf        -> player.sendMsg("team.invite.self")
-			is TeamManager.InviteResult.AlreadyInSameTeam  -> player.sendMsg("team.invite.already_teammate")
-			is TeamManager.InviteResult.TargetAlreadyInTeam -> player.sendMsg("team.invite.target_has_team", "name" to target.name)
-			is TeamManager.InviteResult.SenderAlreadyInFullTeam -> player.sendMsg("team.invite.team_full")
-			is TeamManager.InviteResult.InviteAlreadyPending    -> player.sendMsg("team.invite.already_pending", "name" to target.name)
-		}
-	}
-
-	private fun handleAccept(player: Player, args: Array<out String>) {
-		if (!isLobbyPhase()) { player.sendMsg("team.game_running"); return }
-
-		val inviterName = args.getOrNull(1) ?: run { player.sendMsg("team.accept.usage"); return }
-		val inviter = plugin.server.getPlayerExact(inviterName) ?: run {
-			player.sendMsg("team.player_not_found", "name" to inviterName); return
-		}
-
-		when (val result = plugin.teamManager.accept(player, inviter.uniqueId)) {
-			is TeamManager.AcceptResult.Success -> {
-				val memberNames = result.team.members
-					.mapNotNull { plugin.server.getPlayer(it)?.name }
-					.joinToString(", ")
-
-				// Alle Teammitglieder benachrichtigen
-				result.team.members.forEach { uuid ->
-					plugin.server.getPlayer(uuid)?.sendMsg(
-						"team.accept.joined",
-						"name" to player.name,
-						"members" to memberNames
-					)
-				}
-			}
-			is TeamManager.AcceptResult.TeamsDisabled  -> player.sendMsg("team.disabled")
-			is TeamManager.AcceptResult.NoInvite       -> player.sendMsg("team.accept.no_invite", "name" to inviterName)
-			is TeamManager.AcceptResult.WrongInviter   -> player.sendMsg("team.accept.no_invite", "name" to inviterName)
-			is TeamManager.AcceptResult.InviteExpired  -> player.sendMsg("team.accept.expired", "name" to inviterName)
-			is TeamManager.AcceptResult.AlreadyInTeam  -> player.sendMsg("team.already_in_team")
-			is TeamManager.AcceptResult.TeamFull       -> player.sendMsg("team.invite.team_full")
-			is TeamManager.AcceptResult.InviterNotFound -> player.sendMsg("team.player_not_found", "name" to inviterName)
-		}
-	}
-
-	private fun handleDeny(player: Player, args: Array<out String>) {
-		if (!isLobbyPhase()) { player.sendMsg("team.game_running"); return }
-
-		val inviterName = args.getOrNull(1) ?: run { player.sendMsg("team.deny.usage"); return }
-		val inviter = plugin.server.getPlayerExact(inviterName) ?: run {
-			player.sendMsg("team.player_not_found", "name" to inviterName); return
-		}
-
-		if (plugin.teamManager.deny(player, inviter.uniqueId)) {
-			player.sendMsg("team.deny.success", "name" to inviterName)
-			inviter.sendMsg("team.deny.received", "name" to player.name)
-		} else {
-			player.sendMsg("team.accept.no_invite", "name" to inviterName)
-		}
-	}
-
-	private fun handleLeave(player: Player) {
-		if (!isLobbyPhase()) { player.sendMsg("team.game_running"); return }
-
-		val team = plugin.teamManager.getTeam(player)
-
-		when (plugin.teamManager.leave(player)) {
-			is TeamManager.LeaveResult.NotInTeam -> {
-				player.sendMsg("team.not_in_team")
-			}
-			is TeamManager.LeaveResult.TeamDisbanded -> {
-				// Alle Ex-Mitglieder (außer dem Verlassenden) benachrichtigen
-				team?.members?.forEach { uuid ->
-					plugin.server.getPlayer(uuid)?.sendMsg("team.leave.disbanded")
-				}
-				player.sendMsg("team.leave.disbanded")
-			}
-			is TeamManager.LeaveResult.Success -> {
-				player.sendMsg("team.leave.success")
-				// Verbleibende Mitglieder informieren
-				team?.members?.forEach { uuid ->
-					plugin.server.getPlayer(uuid)?.sendMsg(
-						"team.leave.member_left", "name" to player.name
-					)
-				}
-			}
-		}
-	}
-
-	private fun handleKick(player: Player, args: Array<out String>) {
-		if (!isLobbyPhase()) { player.sendMsg("team.game_running"); return }
-
-		val targetName = args.getOrNull(1) ?: run { player.sendMsg("team.kick.usage"); return }
-		val target = plugin.server.getPlayerExact(targetName) ?: run {
-			player.sendMsg("team.player_not_found", "name" to targetName); return
-		}
-
-		when (plugin.teamManager.kick(player, target)) {
-			is TeamManager.KickResult.Success       -> {
-				player.sendMsg("team.kick.success", "name" to target.name)
-				target.sendMsg("team.kick.received", "name" to player.name)
-			}
-			is TeamManager.KickResult.NotInTeam     -> player.sendMsg("team.not_in_team")
-			is TeamManager.KickResult.NotLeader     -> player.sendMsg("team.kick.not_leader")
-			is TeamManager.KickResult.TargetNotInTeam -> player.sendMsg("team.kick.not_in_your_team", "name" to targetName)
-			is TeamManager.KickResult.CannotKickSelf  -> player.sendMsg("team.kick.self")
-		}
-	}
-
-	private fun handleInfo(player: Player) {
-		val team = plugin.teamManager.getTeam(player) ?: run {
-			player.sendMsg("team.not_in_team"); return
-		}
-
-		player.sendMsg("team.info.header")
-		team.members.forEachIndexed { i, uuid ->
-			val name = plugin.server.getPlayer(uuid)?.name ?: uuid.toString().take(8)
-			val isLeader = team.isLeader(uuid)
-			player.sendMsg(
-				"team.info.member",
-				"index"  to (i + 1).toString(),
-				"name"   to name,
-				"leader" to if (isLeader) " ★" else ""
-			)
-		}
-		player.sendMsg("team.info.footer", "size" to team.size.toString(), "max" to plugin.teamManager.maxTeamSize.toString())
-	}
-
-	// =========================================================================
-	//  Tab Completion
-	// =========================================================================
-
-	override fun onTabComplete(
-		sender: CommandSender,
-		command: Command,
-		label: String,
-		args: Array<out String>
-	): List<String> {
-		if (sender !is Player) return emptyList()
-
-		if (args.size == 1) {
-			return listOf("invite", "accept", "deny", "leave", "kick", "info")
-				.filter { it.startsWith(args[0], ignoreCase = true) }
-		}
-
-		if (args.size == 2) {
-			return when (args[0].lowercase()) {
-				"invite", "accept", "deny", "kick" ->
-					plugin.server.onlinePlayers
-						.filter { it != sender }
-						.map { it.name }
-						.filter { it.startsWith(args[1], ignoreCase = true) }
-				else -> emptyList()
-			}
-		}
-
-		return emptyList()
-	}
-}

src/main/kotlin/club/mcscrims/speedhg/game/GameManager.kt

@@ -295,7 +295,7 @@ class GameManager(
 	private fun checkWin() {
 		if (currentState != GameState.INGAME && currentState != GameState.INVINCIBILITY) return
 
-		val teamManager = plugin.teamManager
+		val teamManager = plugin.presetTeamManager
 
 		val roundOver = when {
 			// Nur noch 0 oder 1 Spieler übrig → immer Ende
@@ -326,8 +326,8 @@ class GameManager(
 
 		val winnerUUID = alivePlayers.firstOrNull()
 
-		val winnerTeam = if ( plugin.teamManager.isEnabled && winnerUUID != null )
+		val winnerTeam = if ( plugin.presetTeamManager.isEnabled && winnerUUID != null )
-			plugin.teamManager.getTeam( winnerUUID ) else null
+			plugin.presetTeamManager.getTeam( winnerUUID ) else null
 
 		Bukkit.getOnlinePlayers().forEach { p ->
 			val isWinner = winnerTeam?.contains( p.uniqueId ) ?: ( p.uniqueId == winnerUUID )
@@ -364,7 +364,7 @@ class GameManager(
 	private fun buildWinnerName(anyAliveUUID: UUID?): String {
 		anyAliveUUID ?: return "N/A"
 
-		val teamManager = plugin.teamManager
+		val teamManager = plugin.presetTeamManager
 		if (!teamManager.isEnabled) {
 			return Bukkit.getPlayer(anyAliveUUID)?.name ?: "N/A"
 		}
@@ -420,8 +420,8 @@ class GameManager(
 			{
 				if ( p == target ) continue
 
-				if ( plugin.teamManager.isEnabled &&
+				if ( plugin.presetTeamManager.isEnabled &&
-					plugin.teamManager.areInSameTeam( p, target ))
+					plugin.presetTeamManager.areInSameTeam( p, target ))
 					continue
 
 				val dist = p.location.distanceSquared( target.location )

src/main/kotlin/club/mcscrims/speedhg/game/modules/LobbyItemManager.kt

@@ -8,6 +8,7 @@ import club.mcscrims.speedhg.gui.menu.KitSelectorMenu
 import club.mcscrims.speedhg.gui.menu.LeaderboardMenu
 import club.mcscrims.speedhg.gui.menu.PerkSelectorMenu
 import club.mcscrims.speedhg.gui.menu.StatsMenu
+import club.mcscrims.speedhg.team.gui.TeamSelectionMenu
 import club.mcscrims.speedhg.util.ItemBuilder
 import net.kyori.adventure.text.format.TextDecoration
 import net.kyori.adventure.text.minimessage.MiniMessage
@@ -64,6 +65,7 @@ class LobbyItemManager(
 		const val TAG_TUTORIAL = "tutorial"
 		const val TAG_STATS = "stats"
 		const val TAG_LEADERBOARD = "leaderboard"
+		const val TAG_TEAMS = "teams"
 	}
 
 	// ── Item definitions ──────────────────────────────────────────────────────
@@ -145,6 +147,17 @@ class LobbyItemManager(
 			.build()
 	}
 
+	fun buildTeamItem(
+		player: Player
+	): ItemStack
+	{
+		return ItemBuilder( Material.WHITE_WOOL )
+			.name( plugin.languageManager.getComponent( player, "game.lobby-items.teams.name", mapOf() ) )
+			.lore( listOf( plugin.languageManager.getRawMessage( player, "game.lobby-items.teams.lore" ) ) )
+			.pdc( key, PersistentDataType.STRING, TAG_TEAMS )
+			.build()
+	}
+
 	// ── Public API ────────────────────────────────────────────────────────────
 
 	/**
@@ -159,6 +172,10 @@ class LobbyItemManager(
 		player.inventory.clear()
 		player.inventory.setItem( 0, buildKitItem( player ) )
 		player.inventory.setItem( 1, buildPerkItem( player ) )
+
+		if ( plugin.presetTeamManager.isEnabled )
+			player.inventory.setItem( 2, buildTeamItem( player ) )
+
 		player.inventory.setItem( 4, buildTutorialItem( player ) )
 		player.inventory.setItem( 7, buildStatsItem( player ) )
 		player.inventory.setItem( 8, buildLeaderboardItem( player ) )
@@ -290,6 +307,7 @@ class LobbyItemManager(
 		{
 			TAG_KITS        -> KitSelectorMenu( event.player ).open( event.player )
 			TAG_PERKS       -> PerkSelectorMenu( event.player ).open( event.player )
+			TAG_TEAMS       -> TeamSelectionMenu( event.player ).open( event.player )
 			TAG_TUTORIAL    -> openTutorialBook( event.player )
 			TAG_STATS       -> StatsMenu( event.player ).open( event.player )
 			TAG_LEADERBOARD -> LeaderboardMenu( event.player ).open( event.player )

src/main/kotlin/club/mcscrims/speedhg/perk/impl/OraclePerk.kt

@@ -74,7 +74,7 @@ class OraclePerk : Perk() {
 			.filter { it != player.uniqueId }
 			.mapNotNull { plugin.server.getPlayer(it) }
 			.filter { !plugin.perkManager.isGhost(it) }
-			.filter { !plugin.teamManager.areInSameTeam( player, it ) }
+			.filter { !plugin.presetTeamManager.areInSameTeam( player, it ) }
 			.minByOrNull { it.location.distanceSquared(player.location) }
 
 	private fun buildTrackerComponent(player: Player, nearest: Player): Component {

src/main/kotlin/club/mcscrims/speedhg/scoreboard/ScoreboardManager.kt

@@ -73,6 +73,14 @@ class ScoreboardManager(
 		val stats = plugin.statsManager.getCachedStats( player.uniqueId )
 		val score = stats?.scrimScore ?: 0
 		val games = ( stats?.wins ?: 0 ) + ( stats?.losses ?: 0 )
+
+		val teamsEnabled  = plugin.presetTeamManager.isEnabled
+		val presetTeam    = if ( teamsEnabled ) plugin.presetTeamManager.getTeam( player ) else null
+		val teamName      = presetTeam?.name ?: "-"
+		val teamMembers   = presetTeam?.members
+			?.mapNotNull { Bukkit.getPlayer( it )?.name }
+			?.joinToString( ", " ) ?: "-"
+
 		val rankComponent = Rank.getFormattedRankName( score, games )
 
 		val lines: List<Component>
@@ -81,9 +89,20 @@ class ScoreboardManager(
 		{
 			val timeString = if ( state == GameState.STARTING ) formatTime( gm.timer ) else "Waiting..."
 
+			// Wähle den richtigen Scoreboard-Key je nach Team-Status
+			val key = if ( teamsEnabled ) "scoreboard.lobby_teams" else "scoreboard.lobby"
+
 			lines = plugin.languageManager.getMessageList(
-				player, "scoreboard.lobby",
+				player, key,
-				mapOf( "online" to online, "max" to max, "time" to timeString, "style" to styleName, "variant" to variantName ),
+				mapOf(
+					"online"  to online,
+					"max"     to max,
+					"time"    to timeString,
+					"style"   to styleName,
+					"variant" to variantName,
+					"team"    to teamName,
+					"members" to teamMembers
+				),
 				mapOf( "kit" to kitName, "rank" to rankComponent )
 			)
 		}
@@ -94,9 +113,20 @@ class ScoreboardManager(
 			val kills      = player.getStatistic( Statistic.PLAYER_KILLS ).toString()
 			val border     = String.format( "%.0f", player.world.worldBorder.size )
 
+			val key = if ( teamsEnabled ) "scoreboard.ingame_teams" else "scoreboard.ingame"
+
 			lines = plugin.languageManager.getMessageList(
-				player, "scoreboard.ingame",
+				player, key,
-				mapOf( "timer" to timeString, "alive" to alive, "kills" to kills, "border" to border, "style" to styleName, "variant" to variantName ),
+				mapOf(
+					"timer"   to timeString,
+					"alive"   to alive,
+					"kills"   to kills,
+					"border"  to border,
+					"style"   to styleName,
+					"variant" to variantName,
+					"team"    to teamName,
+					"members" to teamMembers
+				),
 				mapOf( "kit" to kitName, "rank" to rankComponent )
 			)
 		}

src/main/kotlin/club/mcscrims/speedhg/scoreboard/TablistManager.kt

@@ -2,9 +2,11 @@ package club.mcscrims.speedhg.scoreboard
 
 import club.mcscrims.speedhg.SpeedHG
 import club.mcscrims.speedhg.ranking.Rank
+import net.kyori.adventure.text.Component
 import net.kyori.adventure.text.minimessage.MiniMessage
 import net.kyori.adventure.text.minimessage.tag.resolver.Placeholder
 import org.bukkit.Bukkit
+import org.bukkit.DyeColor
 import org.bukkit.entity.Player
 import org.bukkit.event.EventHandler
 import org.bukkit.event.EventPriority
@@ -166,6 +168,16 @@ class TablistManager(
 		updateHeaderFooter( player )
 	}
 
+	/**
+	 * Muss aufgerufen werden wenn ein Spieler einem [PresetTeam] beitritt oder
+	 * es verlässt, damit Prefix und Sortierung sofort aktualisiert werden.
+	 */
+	fun refreshTeamPrefix(
+		player: Player
+	) {
+		assignToTeam( player )
+	}
+
 	// =========================================================================
 	//  Bukkit-Events
 	// =========================================================================
@@ -238,7 +250,7 @@ class TablistManager(
 			}
 
 		// ── Prefix: Server-Rang (z. B. "[Admin]") ─────────────────────────
-		team.prefix(rankProvider.getRankPrefix( player ))
+		team.prefix(buildPrefix( player ))
 
 		// ── playerListName: farbiger Spielername ───────────────────────────
 		// WICHTIG: KEIN <reset> hier. Das <reset> machen wir am Anfang des Suffixes!
@@ -270,6 +282,73 @@ class TablistManager(
 		mm.deserialize( "<reset> <dark_gray>[<reset>${rankTag}<dark_gray>]</dark_gray>" )
 	}
 
+	/**
+	 * Gibt den Prefix zurück:
+	 * - Teams aktiv + Spieler in einem Team → `[Team X]` in Teamfarbe
+	 * - Teams aktiv + kein Team             → leerer Prefix (kein Rang-Prefix)
+	 * - Teams deaktiviert                   → Server-Rang-Prefix wie gehabt
+	 */
+	private fun buildPrefix(
+		player: Player
+	): Component
+	{
+		val teamManager = plugin.presetTeamManager
+
+		if ( teamManager.isEnabled )
+		{
+			val presetTeam = teamManager.getTeam( player )
+
+			return if ( presetTeam != null )
+			{
+				val colorTag = dyeColorToMiniMessage( presetTeam.color )
+				mm.deserialize( "${colorTag}<bold>[${presetTeam.name}]</bold> " )
+			}
+			else
+			{
+				Component.empty()
+			}
+		}
+
+		return rankProvider.getRankPrefix( player )
+	}
+
+	/**
+	 * Konvertiert [DyeColor] zu einem MiniMessage-Farb-Tag für den Tab-Prefix.
+	 *
+	 * | DyeColor | MiniMessage Tag  |
+	 * |----------|-----------------|
+	 * | RED      | `<red>`         |
+	 * | BLUE     | `<blue>`        |
+	 * | GREEN    | `<green>`       |
+	 * | YELLOW   | `<yellow>`      |
+	 * | ORANGE   | `<gold>`        |
+	 * | PURPLE   | `<dark_purple>` |
+	 * | CYAN     | `<aqua>`        |
+	 * | PINK     | `<light_purple>`|
+	 * | (sonst)  | `<gray>`        |
+	 */
+	private fun dyeColorToMiniMessage(
+		color: DyeColor
+	): String = when( color )
+	{
+		DyeColor.RED         -> "<red>"
+		DyeColor.BLUE        -> "<blue>"
+		DyeColor.GREEN       -> "<green>"
+		DyeColor.LIME        -> "<green>"
+		DyeColor.YELLOW      -> "<yellow>"
+		DyeColor.ORANGE      -> "<gold>"
+		DyeColor.PURPLE      -> "<dark_purple>"
+		DyeColor.MAGENTA     -> "<light_purple>"
+		DyeColor.CYAN        -> "<aqua>"
+		DyeColor.LIGHT_BLUE  -> "<aqua>"
+		DyeColor.PINK        -> "<light_purple>"
+		DyeColor.WHITE       -> "<white>"
+		DyeColor.GRAY        -> "<gray>"
+		DyeColor.LIGHT_GRAY  -> "<gray>"
+		DyeColor.BLACK       -> "<dark_gray>"
+		DyeColor.BROWN       -> "<gold>"
+	}
+
 	/** Entfernt das Scoreboard-Team des Spielers vollständig. */
 	private fun removePlayerTeam(
 		uuid: UUID
@@ -337,10 +416,16 @@ class TablistManager(
 	{
 		updateTask = plugin.server.scheduler.runTaskTimer( plugin, { ->
 			Bukkit.getOnlinePlayers().forEach { player ->
-				// Footer mit aktuellen Ping-Werten neu senden
 				updateHeaderFooter( player )
-				// SpeedHG-Suffix synchronisieren (falls Rang sich geändert hat)
 				refreshRankSuffix( player )
+
+				// Team-Prefix bei jedem Tick aktuell halten (Team-Beitritt live sichtbar)
+				if ( plugin.presetTeamManager.isEnabled )
+				{
+					val teamName = playerTeams[ player.uniqueId ] ?: return@forEach
+					val team = scoreboard.getTeam( teamName ) ?: return@forEach
+					team.prefix( buildPrefix( player ) )
+				}
 			}
 		}, UPDATE_INTERVAL_TICKS, UPDATE_INTERVAL_TICKS )
 	}

src/main/kotlin/club/mcscrims/speedhg/team/Team.kt

@@ -1,36 +0,0 @@
-package club.mcscrims.speedhg.team
-
-import java.util.UUID
-
-/**
- * Repräsentiert ein aktives Team in SpeedHG.
- *
- * ## Design-Entscheidungen
- *
- * **Keine DB-Persistenz:** Teams existieren nur für eine Runde im RAM.
- * Nach dem Spielende werden alle Teams via [TeamManager.reset] verworfen.
- *
- * **Leader-Konzept:** Der erste Spieler ([members].first()) ist stets der
- * Ersteller. Nur er darf `/team kick` ausführen. Bei [leave] durch den
- * Leader wird kein automatisches Promoting durchgeführt — das Team löst
- * sich auf, wenn der Leader geht (Vereinfachung, da max. 2 Spieler).
- *
- * @param id      Eindeutige Team-ID (UUID, intern generiert).
- * @param leader  UUID des Team-Erstellers.
- * @param members Geordnete Liste aller Mitglieder (Leader immer an Index 0).
- */
-data class Team(
-	val id: UUID = UUID.randomUUID(),
-	val leader: UUID,
-	val members: MutableList<UUID> = mutableListOf(leader)
-) {
-
-	/** Gibt `true` zurück wenn [uuid] Mitglied dieses Teams ist. */
-	fun contains(uuid: UUID): Boolean = members.contains(uuid)
-
-	/** Gibt `true` zurück wenn [uuid] der Leader dieses Teams ist. */
-	fun isLeader(uuid: UUID): Boolean = uuid == leader
-
-	/** Anzahl der aktuellen Mitglieder. */
-	val size: Int get() = members.size
-}

src/main/kotlin/club/mcscrims/speedhg/team/TeamListener.kt

@@ -1,55 +0,0 @@
-package club.mcscrims.speedhg.team
-
-import club.mcscrims.speedhg.SpeedHG
-import club.mcscrims.speedhg.game.GameState
-import org.bukkit.entity.Player
-import org.bukkit.event.EventHandler
-import org.bukkit.event.EventPriority
-import org.bukkit.event.Listener
-import org.bukkit.event.entity.EntityDamageByEntityEvent
-import org.bukkit.event.player.PlayerQuitEvent
-
-/**
- * Verhindert Friendly Fire zwischen Teammitgliedern und räumt
- * Teams auf wenn Spieler die Runde verlassen.
- *
- * Friendly-Fire-Check läuft auf LOW-Priority, damit er vor allen anderen
- * Damage-Listenern (Kit-, Perk-Dispatcher) gecancelt wird. So sehen
- * weder [KitEventDispatcher] noch [PerkEventDispatcher] den Hit überhaupt.
- */
-class TeamListener : Listener {
-
-	private val plugin get() = SpeedHG.instance
-
-	// ── Friendly Fire ─────────────────────────────────────────────────────────
-
-	@EventHandler(priority = EventPriority.LOW, ignoreCancelled = false)
-	fun onDamage(event: EntityDamageByEntityEvent) {
-		if (!plugin.teamManager.isEnabled) return
-		if (plugin.gameManager.currentState != GameState.INGAME &&
-			plugin.gameManager.currentState != GameState.INVINCIBILITY) return
-
-		val attacker = event.damager as? Player ?: return
-		val victim   = event.entity  as? Player ?: return
-
-		if (plugin.teamManager.areInSameTeam(attacker, victim)) {
-			event.isCancelled = true
-		}
-	}
-
-	// ── Team-Cleanup bei Disconnect ───────────────────────────────────────────
-
-	/**
-	 * Wenn ein Spieler das Spiel während der Lobby verlässt, wird er aus
-	 * seinem Team entfernt (bzw. das Team aufgelöst wenn er Leader war).
-	 * Während INGAME bleibt das Team bestehen — der Spieler zählt weiterhin
-	 * zur Teamgruppe für die Win-Condition (er ist ja bereits eliminiert).
-	 */
-	@EventHandler(priority = EventPriority.MONITOR)
-	fun onQuit(event: PlayerQuitEvent) {
-		val state = plugin.gameManager.currentState
-		if (state == GameState.LOBBY || state == GameState.STARTING) {
-			plugin.teamManager.leave(event.player)
-		}
-	}
-}

src/main/kotlin/club/mcscrims/speedhg/team/TeamManager.kt

@@ -1,294 +0,0 @@
-package club.mcscrims.speedhg.team
-
-import club.mcscrims.speedhg.SpeedHG
-import org.bukkit.entity.Player
-import java.util.UUID
-import java.util.concurrent.ConcurrentHashMap
-
-/**
- * Verwaltet alle aktiven Teams und offenen Einladungen für die laufende Runde.
- *
- * ## Datenstruktur
- *
- * Zwei parallele Maps ermöglichen O(1)-Lookups in beide Richtungen:
- * - [teamByPlayer]:  PlayerUUID  → Team  (schnelle Abfrage "In welchem Team bin ich?")
- * - [teamsById]:     TeamUUID    → Team  (schnelle Iteration über alle Teams)
- *
- * Einladungen ([pendingInvites]) sind kurzlebig und verfallen nach [INVITE_TTL_MS].
- * Struktur: InviteeUUID → (InviterUUID, ExpiryTimestamp)
- *
- * ## Thread-Safety
- * Alle Maps sind [ConcurrentHashMap], da Bukkit-Events zwar auf dem Main-Thread
- * laufen, der Timer-Cleanup ([cleanExpiredInvites]) aber vom Scheduler aufgerufen wird.
- * Mutationen (invite, accept, leave) laufen ausschließlich auf dem Main-Thread.
- */
-class TeamManager(private val plugin: SpeedHG) {
-
-	companion object {
-		/** Einladung verfällt nach dieser Zeit in Millisekunden. */
-		const val INVITE_TTL_MS = 60_000L
-	}
-
-	// ── Konfiguration ─────────────────────────────────────────────────────────
-
-	val isEnabled: Boolean
-		get() = plugin.config.getBoolean("teams.enabled", true)
-
-	val maxTeamSize: Int
-		get() = plugin.config.getInt("teams.max-size", 2)
-
-	// ── State ─────────────────────────────────────────────────────────────────
-
-	/** TeamID → Team */
-	private val teamsById   = ConcurrentHashMap<UUID, Team>()
-
-	/** PlayerUUID → Team (Reverse-Lookup, O(1)) */
-	private val teamByPlayer = ConcurrentHashMap<UUID, Team>()
-
-	/**
-	 * Offene Einladungen: InviteeUUID → Pair(InviterUUID, ExpiryMs)
-	 * Nur eine offene Einladung pro Spieler gleichzeitig.
-	 */
-	private val pendingInvites = ConcurrentHashMap<UUID, Pair<UUID, Long>>()
-
-	// =========================================================================
-	//  Team-Queries (O(1), Main-Thread safe)
-	// =========================================================================
-
-	/** Gibt das Team des Spielers zurück, oder `null` wenn er keins hat. */
-	fun getTeam(player: Player): Team? = teamByPlayer[player.uniqueId]
-
-	/** Gibt das Team des Spielers zurück, oder `null` wenn er keins hat. */
-	fun getTeam(uuid: UUID): Team? = teamByPlayer[uuid]
-
-	/**
-	 * Gibt `true` zurück wenn beide Spieler im selben Team sind.
-	 * Wird verwendet für:
-	 * - Friendly-Fire-Check ([TeamListener])
-	 * - Kompass-Tracking ([GameManager.updateCompass])
-	 * - Orakel-Perk ([OraclePerk.findNearestEnemy])
-	 */
-	fun areInSameTeam(a: Player, b: Player): Boolean {
-		val teamA = teamByPlayer[a.uniqueId] ?: return false
-		return teamA.contains(b.uniqueId)
-	}
-
-	fun areInSameTeam(a: UUID, b: UUID): Boolean {
-		val teamA = teamByPlayer[a] ?: return false
-		return teamA.contains(b)
-	}
-
-	/** Gibt alle aktiven Teams zurück (nur lesend). */
-	fun getAllTeams(): Collection<Team> = teamsById.values
-
-	// =========================================================================
-	//  Invite-System
-	// =========================================================================
-
-	sealed class InviteResult {
-		object Success                  : InviteResult()
-		object TeamsDisabled            : InviteResult()
-		object TargetAlreadyInTeam      : InviteResult()
-		object SenderAlreadyInFullTeam  : InviteResult()
-		object InvitedSelf              : InviteResult()
-		object AlreadyInSameTeam        : InviteResult()
-		object InviteAlreadyPending     : InviteResult()
-	}
-
-	/**
-	 * Versendet eine Einladung von [sender] an [target].
-	 * Erstellt bei Bedarf ein neues Team für [sender].
-	 */
-	fun invite(sender: Player, target: Player): InviteResult {
-		if (!isEnabled) return InviteResult.TeamsDisabled
-		if (sender.uniqueId == target.uniqueId) return InviteResult.InvitedSelf
-
-		val senderTeam = teamByPlayer[sender.uniqueId]
-		val targetTeam = teamByPlayer[target.uniqueId]
-
-		if (senderTeam != null && senderTeam.contains(target.uniqueId))
-			return InviteResult.AlreadyInSameTeam
-
-		if (targetTeam != null)
-			return InviteResult.TargetAlreadyInTeam
-
-		if (senderTeam != null && senderTeam.size >= maxTeamSize)
-			return InviteResult.SenderAlreadyInFullTeam
-
-		if (pendingInvites.containsKey(target.uniqueId))
-			return InviteResult.InviteAlreadyPending
-
-		pendingInvites[target.uniqueId] = Pair(sender.uniqueId, System.currentTimeMillis() + INVITE_TTL_MS)
-		return InviteResult.Success
-	}
-
-	sealed class AcceptResult {
-		data class Success(val team: Team) : AcceptResult()
-		object TeamsDisabled        : AcceptResult()
-		object NoInvite             : AcceptResult()
-		object InviteExpired        : AcceptResult()
-		object AlreadyInTeam        : AcceptResult()
-		object TeamFull             : AcceptResult()
-		object InviterNotFound      : AcceptResult()
-		object WrongInviter         : AcceptResult()
-	}
-
-	/**
-	 * Nimmt eine Einladung von [inviterName] an.
-	 * Wenn [inviterName] null ist, nimmt es die einzige vorhandene Einladung an.
-	 */
-	fun accept(invitee: Player, inviterUUID: UUID): AcceptResult {
-		if (!isEnabled) return AcceptResult.TeamsDisabled
-		if (teamByPlayer.containsKey(invitee.uniqueId)) return AcceptResult.AlreadyInTeam
-
-		val (storedInviterUUID, expiry) = pendingInvites[invitee.uniqueId]
-			?: return AcceptResult.NoInvite
-
-		if (storedInviterUUID != inviterUUID) return AcceptResult.WrongInviter
-
-		if (System.currentTimeMillis() > expiry) {
-			pendingInvites.remove(invitee.uniqueId)
-			return AcceptResult.InviteExpired
-		}
-
-		pendingInvites.remove(invitee.uniqueId)
-
-		// Team des Inviters abrufen oder neu erstellen
-		val team = teamByPlayer.getOrPut(inviterUUID) {
-			val newTeam = Team(leader = inviterUUID)
-			teamsById[newTeam.id] = newTeam
-			newTeam
-		}
-
-		if (team.size >= maxTeamSize) return AcceptResult.TeamFull
-
-		team.members.add(invitee.uniqueId)
-		teamByPlayer[invitee.uniqueId] = team
-
-		return AcceptResult.Success(team)
-	}
-
-	fun deny(invitee: Player, inviterUUID: UUID): Boolean {
-		val invite = pendingInvites[invitee.uniqueId] ?: return false
-		if (invite.first != inviterUUID) return false
-		pendingInvites.remove(invitee.uniqueId)
-		return true
-	}
-
-	// =========================================================================
-	//  Team-Mutations
-	// =========================================================================
-
-	sealed class LeaveResult {
-		object Success      : LeaveResult()
-		object NotInTeam    : LeaveResult()
-		/** Leader hat das Team verlassen → Team aufgelöst */
-		object TeamDisbanded : LeaveResult()
-	}
-
-	fun leave(player: Player): LeaveResult {
-		val team = teamByPlayer[player.uniqueId] ?: return LeaveResult.NotInTeam
-
-		val wasLeader = team.isLeader(player.uniqueId)
-
-		team.members.remove(player.uniqueId)
-		teamByPlayer.remove(player.uniqueId)
-
-		return if (wasLeader || team.size == 0) {
-			// Leader geht → Team auflösen (alle verbleibenden Mitglieder rausnehmen)
-			disbandTeam(team)
-			LeaveResult.TeamDisbanded
-		} else {
-			if (team.size == 0) teamsById.remove(team.id)
-			LeaveResult.Success
-		}
-	}
-
-	sealed class KickResult {
-		object Success          : KickResult()
-		object NotInTeam        : KickResult()
-		object NotLeader        : KickResult()
-		object TargetNotInTeam  : KickResult()
-		object CannotKickSelf   : KickResult()
-	}
-
-	fun kick(kicker: Player, target: Player): KickResult {
-		val team = teamByPlayer[kicker.uniqueId] ?: return KickResult.NotInTeam
-		if (!team.isLeader(kicker.uniqueId)) return KickResult.NotLeader
-		if (kicker.uniqueId == target.uniqueId) return KickResult.CannotKickSelf
-		if (!team.contains(target.uniqueId)) return KickResult.TargetNotInTeam
-
-		team.members.remove(target.uniqueId)
-		teamByPlayer.remove(target.uniqueId)
-
-		if (team.size == 0) {
-			teamsById.remove(team.id)
-			teamByPlayer.remove(kicker.uniqueId)
-		}
-
-		return KickResult.Success
-	}
-
-	// =========================================================================
-	//  Win-Condition Helper
-	// =========================================================================
-
-	/**
-	 * Prüft ob alle [aliveUUIDs] im selben Team sind.
-	 * Gibt `true` zurück wenn:
-	 * - Teams deaktiviert → niemals (nur 1 Spieler = Sieg, Standardlogik)
-	 * - Alle Überlebenden exakt dasselbe [Team]-Objekt teilen
-	 *
-	 * Aufruf in [GameManager.checkWin]:
-	 * ```kotlin
-	 * if (alivePlayers.size <= 1 || plugin.teamManager.allAliveInSameTeam(alivePlayers))
-	 *     endGame(...)
-	 * ```
-	 */
-	fun allAliveInSameTeam(aliveUUIDs: Set<UUID>): Boolean {
-		if (!isEnabled || aliveUUIDs.size <= 1) return false
-
-		val firstTeam = teamByPlayer[aliveUUIDs.first()] ?: return false
-		return aliveUUIDs.all { uuid ->
-			val team = teamByPlayer[uuid] ?: return false
-			team.id == firstTeam.id
-		}
-	}
-
-	// =========================================================================
-	//  Lifecycle
-	// =========================================================================
-
-	/** Räumt abgelaufene Einladungen auf. Einmal pro Sekunde aufrufen. */
-	fun cleanExpiredInvites() {
-		val now = System.currentTimeMillis()
-		pendingInvites.entries.removeIf { (_, pair) -> now > pair.second }
-	}
-
-	/**
-	 * Setzt den gesamten Team-State zurück.
-	 * In [GameManager.startGame] aufrufen (vor Spielstart).
-	 */
-	fun reset() {
-		teamsById.clear()
-		teamByPlayer.clear()
-		pendingInvites.clear()
-		plugin.logger.info("[TeamManager] Teams zurückgesetzt.")
-	}
-
-	// ── Pending-Invite Queries ────────────────────────────────────────────────
-
-	/** Gibt die UUID des Inviters zurück, falls eine Einladung für [invitee] vorliegt. */
-	fun getInviterFor(invitee: Player): UUID? {
-		val entry = pendingInvites[invitee.uniqueId] ?: return null
-		return if (System.currentTimeMillis() < entry.second) entry.first else null
-	}
-
-	// ── Private Helpers ───────────────────────────────────────────────────────
-
-	private fun disbandTeam(team: Team) {
-		team.members.forEach { teamByPlayer.remove(it) }
-		team.members.clear()
-		teamsById.remove(team.id)
-	}
-}

src/main/kotlin/club/mcscrims/speedhg/team/gui/PresetTeam.kt

@@ -0,0 +1,41 @@
+package club.mcscrims.speedhg.team.gui
+
+import org.bukkit.DyeColor
+import java.util.UUID
+
+/**
+ * Repräsentiert einen festen Team-Slot im GUI-System.
+ *
+ * ## Unterschied zu [Team]
+ *
+ * [Team] wird dynamisch durch `/team invite` erstellt und hat keine
+ * feste Identität. [PresetTeam] hingegen existiert **immer** — es
+ * ist ein nummerierter Slot mit Farbe und max. Kapazität, der im
+ * [TeamSelectionMenu] als Wolle-Icon sichtbar ist.
+ *
+ * ## Lebenszyklus
+ *
+ * | Phase   | Zustand                                        |
+ * |---------|------------------------------------------------|
+ * | Lobby   | Alle Slots leer, Spieler können beitreten      |
+ * | Running | Slots gesperrt, Änderungen werden blockiert    |
+ * | Reset   | `members` wird geleert via [PresetTeamManager] |
+ *
+ * @param index     Slot-Nummer (0-basiert), für den GUI-Slot-Index.
+ * @param name      Angezeigter Name im GUI (z. B. `"Team 1"`).
+ * @param color     Wolle-Farbe für das Icon.
+ * @param maxSize   Maximale Spieleranzahl.
+ */
+data class PresetTeam(
+	val index:   Int,
+	val name:    String,
+	val color:   DyeColor,
+	val maxSize: Int,
+	val members: MutableList<UUID> = mutableListOf()
+) {
+	val isFull:  Boolean get() = members.size >= maxSize
+	val isEmpty: Boolean get() = members.isEmpty()
+	val size:    Int     get() = members.size
+
+	fun contains( uuid: UUID ): Boolean = members.contains( uuid )
+}

src/main/kotlin/club/mcscrims/speedhg/team/gui/PresetTeamManager.kt

@@ -0,0 +1,181 @@
+package club.mcscrims.speedhg.team.gui
+
+import club.mcscrims.speedhg.SpeedHG
+import org.bukkit.DyeColor
+import org.bukkit.entity.Player
+import java.util.UUID
+import java.util.concurrent.ConcurrentHashMap
+
+/**
+ * Verwaltet die festen GUI-Team-Slots für das GommeHD-style Team-System.
+ *
+ * ## Konfiguration (`config.yml`)
+ *
+ * ```yaml
+ * teams:
+ *   enabled: true
+ *   preset-count: 8
+ *   max-size: 2
+ * ```
+ *
+ * Wenn `teams.enabled: false`, werden alle Mutations ([join], [leave]) sofort
+ * mit [JoinResult.TeamsDisabled] abgewiesen und [giveTeamItem] gibt `null` zurück.
+ *
+ * ## Datenstruktur
+ *
+ * ```
+ * presetTeams: List<PresetTeam>       — geordnete Slot-Liste (Index = GUI-Position)
+ * teamByPlayer: UUID → PresetTeam    — O(1) Reverse-Lookup
+ * ```
+ */
+class PresetTeamManager(
+	private val plugin: SpeedHG
+) {
+
+	companion object {
+		private val TEAM_COLORS = listOf(
+			DyeColor.RED,
+			DyeColor.BLUE,
+			DyeColor.GREEN,
+			DyeColor.YELLOW,
+			DyeColor.ORANGE,
+			DyeColor.PURPLE,
+			DyeColor.CYAN,
+			DyeColor.PINK,
+			DyeColor.WHITE,
+			DyeColor.BLACK
+		)
+	}
+
+	// ── Konfiguration ──────────────────────────────────────────────────────────
+
+	val isEnabled: Boolean
+		get() = plugin.config.getBoolean( "teams.enabled", true )
+
+	val maxTeamSize: Int
+		get() = plugin.config.getInt( "teams.max-size", 2 )
+
+	// ── State ──────────────────────────────────────────────────────────────────
+
+	val presetTeams: List<PresetTeam>
+
+	/** Reverse-Lookup: PlayerUUID → PresetTeam. Thread-safe für Scheduler. */
+	private val teamByPlayer = ConcurrentHashMap<UUID, PresetTeam>()
+
+	init {
+		val count = plugin.config.getInt( "teams.preset-count", 8 )
+
+		presetTeams = ( 0 until count ).map { i ->
+			PresetTeam(
+				index   = i,
+				name    = "Team ${i + 1}",
+				color   = TEAM_COLORS[ i % TEAM_COLORS.size ],
+				maxSize = maxTeamSize
+			)
+		}
+	}
+
+	// ── Queries ────────────────────────────────────────────────────────────────
+
+	fun getTeam( player: Player ): PresetTeam? = teamByPlayer[player.uniqueId]
+	fun getTeam( uuid: UUID ):    PresetTeam? = teamByPlayer[uuid]
+
+	// ── Mutations ──────────────────────────────────────────────────────────────
+
+	sealed class JoinResult {
+		object Success       : JoinResult()
+		object TeamsDisabled : JoinResult()
+		object TeamFull      : JoinResult()
+		/** Spieler war bereits in diesem Team. */
+		object AlreadyHere   : JoinResult()
+	}
+
+	/**
+	 * Gibt `true` zurück wenn beide Spieler im selben Team sind.
+	 * Wird verwendet für:
+	 * - Friendly-Fire-Check ([TeamSelectionListener])
+	 * - Kompass-Tracking ([GameManager.updateCompass])
+	 * - Orakel-Perk ([OraclePerk.findNearestEnemy])
+	 */
+	fun areInSameTeam(
+		a: Player,
+		b: Player
+	): Boolean
+	{
+		val teamA = teamByPlayer[ a.uniqueId ] ?: return false
+		return teamA.contains( b.uniqueId )
+	}
+
+	fun areInSameTeam(
+		a: UUID,
+		b: UUID
+	): Boolean
+	{
+		val teamA = teamByPlayer[ a ] ?: return false
+		return teamA.contains( b )
+	}
+
+	/**
+	 * Prüft ob alle [aliveUUIDs] im selben Team sind.
+	 * Gibt `true` zurück wenn:
+	 * - Teams deaktiviert → niemals (nur 1 Spieler = Sieg, Standardlogik)
+	 * - Alle Überlebenden exakt dasselbe [Team]-Objekt teilen
+	 *
+	 * Aufruf in [GameManager.checkWin]:
+	 * ```kotlin
+	 * if (alivePlayers.size <= 1 || plugin.teamManager.allAliveInSameTeam(alivePlayers))
+	 *     endGame(...)
+	 * ```
+	 */
+	fun allAliveInSameTeam(aliveUUIDs: Set<UUID>): Boolean {
+		if (!isEnabled || aliveUUIDs.size <= 1) return false
+
+		val firstTeam = teamByPlayer[aliveUUIDs.first()] ?: return false
+		return aliveUUIDs.all { uuid ->
+			val team = teamByPlayer[uuid] ?: return false
+			team.index == firstTeam.index
+		}
+	}
+
+	/**
+	 * Lässt [player] dem [team]-Slot beitreten.
+	 * Verlässt automatisch das alte Team, falls vorhanden.
+	 */
+	fun join(
+		player: Player,
+		team:   PresetTeam
+	): JoinResult
+	{
+		if ( !isEnabled ) return JoinResult.TeamsDisabled
+		if ( team.contains( player.uniqueId ) ) return JoinResult.AlreadyHere
+		if ( team.isFull ) return JoinResult.TeamFull
+
+		teamByPlayer[player.uniqueId]?.members?.remove( player.uniqueId )
+		team.members.add( player.uniqueId )
+		teamByPlayer[player.uniqueId] = team
+
+		// Tab-Prefix sofort aktualisieren
+		plugin.tablistManager.refreshTeamPrefix( player )
+
+		return JoinResult.Success
+	}
+
+	fun leave(
+		player: Player
+	) {
+		val team = teamByPlayer.remove( player.uniqueId ) ?: return
+		team.members.remove( player.uniqueId )
+
+		// Tab-Prefix zurücksetzen
+		plugin.tablistManager.refreshTeamPrefix( player )
+	}
+
+	/** Setzt alle Team-Slots zurück (Spielstart / Runden-Reset). */
+	fun reset()
+	{
+		presetTeams.forEach { it.members.clear() }
+		teamByPlayer.clear()
+		plugin.logger.info( "[PresetTeamManager] Alle Team-Slots zurückgesetzt." )
+	}
+
+}

src/main/kotlin/club/mcscrims/speedhg/team/gui/TeamSelectionListener.kt

@@ -0,0 +1,70 @@
+package club.mcscrims.speedhg.team.gui
+
+import club.mcscrims.speedhg.SpeedHG
+import club.mcscrims.speedhg.game.GameState
+import club.mcscrims.speedhg.gui.menu.MenuHolder
+import org.bukkit.entity.Player
+import org.bukkit.event.EventHandler
+import org.bukkit.event.EventPriority
+import org.bukkit.event.Listener
+import org.bukkit.event.entity.EntityDamageByEntityEvent
+import org.bukkit.event.inventory.InventoryClickEvent
+import org.bukkit.event.inventory.InventoryCloseEvent
+import org.bukkit.event.player.PlayerQuitEvent
+
+/**
+ * Fängt alle Inventory-Events ab und delegiert sie an das zugehörige [Menu].
+ *
+ * Das Routing funktioniert über den [MenuHolder]-Pattern:
+ * Jedes via [Menu.createInventory] erstellte Inventar hat einen [MenuHolder]
+ * als Holder. Ist der Holder kein [MenuHolder], wird das Event ignoriert —
+ * so werden fremde Inventare (Kisten, Workbenches etc.) nie berührt.
+ */
+class TeamSelectionListener(
+	private val plugin: SpeedHG
+) : Listener {
+
+	@EventHandler( priority = EventPriority.LOW, ignoreCancelled = false )
+	fun onDamage(
+		event: EntityDamageByEntityEvent
+	) {
+		if ( !plugin.presetTeamManager.isEnabled ) return
+		if ( plugin.gameManager.currentState != GameState.INGAME &&
+			 plugin.gameManager.currentState != GameState.INVINCIBILITY ) return
+
+		val attacker = event.damager as? Player ?: return
+		val victim = event.entity as? Player ?: return
+
+		if (plugin.presetTeamManager.areInSameTeam( attacker, victim ))
+			event.isCancelled = true
+	}
+
+	@EventHandler( priority = EventPriority.MONITOR )
+	fun onQuit(
+		event: PlayerQuitEvent
+	) {
+		val state = plugin.gameManager.currentState
+		if ( state == GameState.LOBBY || state == GameState.STARTING )
+			plugin.presetTeamManager.leave( event.player )
+	}
+
+	@EventHandler
+	fun onInventoryClick(
+		event: InventoryClickEvent
+	) {
+		val menu = ( event.inventory.holder as? MenuHolder )?.menu
+				as? TeamSelectionMenu ?: return
+
+		event.isCancelled = true
+
+		val player = event.whoClicked as? org.bukkit.entity.Player ?: return
+		menu.onClick( event, player )
+	}
+
+	@EventHandler
+	fun onInventoryClose(
+		event: InventoryCloseEvent
+	) {
+		// Kein State-Cleanup nötig — PresetTeamManager ist unabhängig vom Inventar
+	}
+}

src/main/kotlin/club/mcscrims/speedhg/team/gui/TeamSelectionMenu.kt

@@ -0,0 +1,214 @@
+package club.mcscrims.speedhg.team.gui
+
+import club.mcscrims.speedhg.SpeedHG
+import club.mcscrims.speedhg.gui.menu.Menu
+import club.mcscrims.speedhg.util.trans
+import net.kyori.adventure.text.Component
+import net.kyori.adventure.text.format.TextDecoration
+import org.bukkit.Bukkit
+import org.bukkit.Material
+import org.bukkit.enchantments.Enchantment
+import org.bukkit.entity.Player
+import org.bukkit.event.inventory.InventoryClickEvent
+import org.bukkit.inventory.Inventory
+import org.bukkit.inventory.ItemFlag
+import org.bukkit.inventory.ItemStack
+
+/**
+ * GUI-basiertes Team-Auswahl-Menü im GommeHD-Stil.
+ *
+ * ## Layout (4 Reihen, 36 Slots)
+ *
+ * ```
+ * [F][F][F][F][F][F][F][F][F]   ← Reihe 0: Filler
+ * [F][T1][T2][T3][T4][T5][T6][T7][F]
+ * [F][T8][..][..][..][..][..][..][F]
+ * [F][F][F][F][F][F][F][F][F]   ← Reihe 3: Filler
+ * ```
+ *
+ * ## Wolle-Farb-Logik
+ *
+ * | Zustand              | Material                 |
+ * |----------------------|--------------------------|
+ * | Platz frei           | `LIME_WOOL`              |
+ * | Team voll            | `RED_WOOL`               |
+ * | Spieler selbst drin  | Teamfarbe + Glanz-Effekt |
+ *
+ * @param viewer Spieler, der das Menü öffnet.
+ */
+class TeamSelectionMenu(
+	private val viewer: Player
+) : Menu(
+	rows  = 4,
+	title = viewer.trans( "gui.team_menu.title" )
+) {
+
+	private val plugin get() = SpeedHG.instance
+
+	companion object {
+		private val TEAM_SLOTS = listOf(
+			10, 11, 12, 13, 14, 15, 16,
+			19, 20, 21, 22, 23, 24, 25
+		)
+
+		private val FILLER_MATERIAL = Material.GRAY_STAINED_GLASS_PANE
+	}
+
+	// ── Build ──────────────────────────────────────────────────────────────────
+
+	override fun build(): Inventory = createInventory( title ).also { populate( it ) }
+
+	private fun populate(
+		inv: Inventory
+	) {
+		inv.clear()
+
+		val filler = buildFiller()
+		repeat( size ) { inv.setItem( it, filler ) }
+
+		plugin.presetTeamManager.presetTeams.forEachIndexed { i, team ->
+			val slot = TEAM_SLOTS.getOrNull( i ) ?: return@forEachIndexed
+			inv.setItem( slot, buildTeamItem( team ) )
+		}
+	}
+
+	// ── Click-Handling ─────────────────────────────────────────────────────────
+
+	override fun onClick(
+		event: InventoryClickEvent,
+		player: Player
+	) {
+		val slot = event.rawSlot
+		if ( slot !in 0 until size ) return
+
+		val teamIndex = TEAM_SLOTS.indexOf( slot )
+		if ( teamIndex == -1 ) return
+
+		val team = plugin.presetTeamManager.presetTeams.getOrNull( teamIndex ) ?: return
+
+		when ( plugin.presetTeamManager.join( player, team ) )
+		{
+			is PresetTeamManager.JoinResult.Success -> {
+				player.sendActionBar( player.trans( "gui.team_menu.joined", "team" to team.name ) )
+				refresh( player )
+			}
+
+			is PresetTeamManager.JoinResult.TeamFull -> {
+				player.sendActionBar( player.trans( "gui.team_menu.full" ) )
+			}
+
+			is PresetTeamManager.JoinResult.AlreadyHere -> {
+				player.sendActionBar( player.trans( "gui.team_menu.already_here" ) )
+			}
+
+			is PresetTeamManager.JoinResult.TeamsDisabled -> {
+				player.sendActionBar( player.trans( "gui.team_menu.disabled" ) )
+			}
+		}
+	}
+
+	// ── Refresh ────────────────────────────────────────────────────────────────
+
+	/**
+	 * Aktualisiert das Inventar für alle Spieler, die dieses Menü gerade offen haben.
+	 * Wird nach jeder Beitritts-Aktion aufgerufen, damit alle
+	 * offenen Instanzen die neue Teamgröße sofort sehen.
+	 */
+	private fun refresh(
+		triggeringPlayer: Player
+	) {
+		populate( inventory )
+
+		Bukkit.getOnlinePlayers()
+			.filter { it != triggeringPlayer }
+			.forEach { other ->
+				val holder = other.openInventory.topInventory.holder
+				if ( holder is club.mcscrims.speedhg.gui.menu.MenuHolder &&
+					holder.menu is TeamSelectionMenu )
+				{
+					populate( other.openInventory.topInventory )
+				}
+			}
+	}
+
+	// ── Item-Builder ───────────────────────────────────────────────────────────
+
+	private fun buildTeamItem(
+		team: PresetTeam
+	): ItemStack {
+		val isSelf  = team.contains( viewer.uniqueId )
+		val woolKey = "${team.color.name}_WOOL"
+
+		val material = when
+		{
+			isSelf      -> Material.getMaterial( woolKey ) ?: Material.LIME_WOOL
+			team.isFull -> Material.RED_WOOL
+			else        -> Material.LIME_WOOL
+		}
+
+		val item = ItemStack( material )
+
+		item.editMeta { meta ->
+			meta.displayName(
+				viewer.trans( "gui.team_menu.item.name", "team" to team.name )
+					.decoration( TextDecoration.ITALIC, false )
+			)
+
+			val memberNames = team.members
+				.mapNotNull { Bukkit.getPlayer( it )?.name }
+
+			val lore = mutableListOf<Component>()
+			lore += Component.empty()
+
+			lore += viewer.trans(
+				"gui.team_menu.item.size",
+				"current" to team.size.toString(),
+				"max"     to team.maxSize.toString()
+			).decoration( TextDecoration.ITALIC, false )
+
+			lore += Component.empty()
+
+			if ( memberNames.isEmpty() )
+			{
+				lore += viewer.trans( "gui.team_menu.item.empty" )
+					.decoration( TextDecoration.ITALIC, false )
+			}
+			else
+			{
+				memberNames.forEach { name ->
+					lore += viewer.trans( "gui.team_menu.item.member", "player" to name )
+						.decoration( TextDecoration.ITALIC, false )
+				}
+			}
+
+			lore += Component.empty()
+
+			lore += if ( team.isFull )
+				viewer.trans( "gui.team_menu.item.full_hint" ).decoration( TextDecoration.ITALIC, false )
+			else
+				viewer.trans( "gui.team_menu.item.join_hint" ).decoration( TextDecoration.ITALIC, false )
+
+			lore += Component.empty()
+			meta.lore( lore )
+
+			if ( isSelf ) {
+				meta.addEnchant( Enchantment.UNBREAKING, 1, true )
+				meta.addItemFlags( ItemFlag.HIDE_ENCHANTS )
+			}
+
+			meta.addItemFlags( ItemFlag.HIDE_ATTRIBUTES, ItemFlag.HIDE_ADDITIONAL_TOOLTIP )
+		}
+
+		return item
+	}
+
+	private fun buildFiller(): ItemStack {
+		val item = ItemStack( FILLER_MATERIAL )
+		item.editMeta { meta ->
+			meta.displayName(
+				Component.text( " " ).decoration( TextDecoration.ITALIC, false )
+			)
+		}
+		return item
+	}
+}

src/main/resources/config.yml

@@ -29,7 +29,8 @@ lunarclient:
 
 teams:
   enabled: false
-  max-size: 2
+  preset-count: 10 # Anzahl der Team-Slots
+  max-size: 2 # Spieler pro Team
 
 recraftNerf:
   enabled: false

src/main/resources/languages/en_US.yml

@@ -32,6 +32,9 @@ game:
     leaderboard:
       name: '<gold><bold>Top 10 Leaderboard</bold></gold>'
       lore: '<gray>Who are the best players?</gray>'
+    teams:
+      name: '<gold><bold>Teams'
+      lore: '<gray>Click to choose your team.'
 
 ranking:
   placement_progress: '<prefix><gray>Placement <aqua><current>/<total></aqua> — Placed <aqua>#<placement></aqua> · <aqua><kills></aqua> Kill(s)</gray>'
@@ -175,27 +178,70 @@ commands:
 
 scoreboard:
   title: '<gradient:red:gold><bold>SpeedHG</bold></gradient>'
+
+  # ── Ohne Teams ────────────────────────────────────────────────────────────
+
   lobby:
-    - "       <variant>"
+    - ''
-    - "<gray><st>                      "
+    - '<gray>Type: <white><variant></white></gray>'
-    - "Players: <green><online>/<max>"
+    - '<gray>Players: <white><online>/<max></white></gray>'
-    - "Kit: <yellow><kit>"
+    - '<gray>Time: <white><time></white></gray>'
-    - "Style: <yellow><style>"
+    - ''
-    - "Rank: <rank>"
+    - '<gray>Kit: <kit></gray>'
-    - ""
+    - '<gray>Style: <white><style></white></gray>'
-    - "<gray>Waiting for start..."
+    - ''
-    - ""
+    - '<gray>Rank: <rank></gray>'
-    - "<yellow>play.mcscrims.club"
+    - ''
+    - '<dark_gray>play.mcscrims.club</dark_gray>'
+    - ''
+
   ingame:
-    - "<gray><st>                      "
+    - ''
-    - "Time: <green><timer>"
+    - '<gray>Time: <white><timer></white></gray>'
-    - "Players: <red><alive>"
+    - '<gray>Alive: <white><alive></white></gray>'
-    - "Kills: <green><kills>"
+    - '<gray>Border: <white><border>m</white></gray>'
-    - "Rank: <rank>"
+    - ''
-    - ""
+    - '<gray>Kit: <kit></gray>'
-    - "Border: <red><border>"
+    - '<gray>Style: <white><style></white></gray>'
-    - ""
+    - ''
-    - "<yellow>play.mcscrims.club"
+    - '<gray>Kills: <white><kills></white></gray>'
+    - ''
+    - '<dark_gray>play.mcscrims.club</dark_gray>'
+    - ''
+
+  # ── Mit Teams ─────────────────────────────────────────────────────────────
+
+  lobby_teams:
+    - ''
+    - '<gray>Type: <white><variant></white></gray>'
+    - '<gray>Players: <white><online>/<max></white></gray>'
+    - '<gray>Time: <white><time></white></gray>'
+    - ''
+    - '<gray>Kit: <kit></gray>'
+    - '<gray>Style: <white><style></white></gray>'
+    - ''
+    - '<gray>Team: <white><team></white></gray>'
+    - '<gray>Members: <white><members></white></gray>'
+    - ''
+    - '<dark_gray>play.mcscrims.club</dark_gray>'
+    - ''
+
+  ingame_teams:
+    - ''
+    - '<gray>Time: <white><timer></white></gray>'
+    - '<gray>Alive: <white><alive></white></gray>'
+    - '<gray>Border: <white><border>m</white></gray>'
+    - ''
+    - '<gray>Kit: <kit></gray>'
+    - '<gray>Style: <white><style></white></gray>'
+    - ''
+    - '<gray>Team: <white><team></white></gray>'
+    - '<gray>Members: <white><members></white></gray>'
+    - ''
+    - '<gray>Kills: <white><kills></white></gray>'
+    - ''
+    - '<dark_gray>play.mcscrims.club</dark_gray>'
+    - ''
 
 gui:
   kit_selector:
@@ -235,6 +281,19 @@ gui:
     title: '<aqua><bold>Profile & Stats</bold></aqua>'
   leaderboard_menu:
     title: '<gold><bold>Top 10 Leaderboard</bold></gold>'
+  team_menu:
+    title: '<dark_gray>Choose your Team'
+    joined: '<green>You joined <white><team></white>!'
+    full: '<red>This team is already full!'
+    already_here: '<yellow>You are already in this team.'
+    disabled: '<red>Teams are disabled.'
+    item:
+      name: '<white><bold><team></bold>'
+      size: '<gray>Players: <white><current>/<max>'
+      empty: '  <dark_gray><i>Nobody yet</i>'
+      member: '  <aqua>• <player>'
+      join_hint: '<green>▶ Click to join'
+      full_hint: '<red>⛔ Team is full'
 
 perks:
   oracle:

src/main/resources/plugin.yml

@@ -42,6 +42,3 @@ commands:
   perks:
     description: 'Perk-Auswahl öffnen'
     usage: '/perks'
-  team:
-    description: 'Team-System for SpeedHG'
-    usage: '/team <invite|accept|deny|leave|kick|info> [player]'