QTeams 2.0.0 — Paper 1.21.11 Native Dialog UI, PacketEvents, Tablist Buffers & 3-Mode Combat Update

QTeams 2.0.0 is a complete architectural overhaul built for Paper 1.21.11 and Java 21. It replaces legacy chest GUIs and ProtocolLib hooks with Mojang's Native Dialog UI, a Netty PacketEvents 2.7+ engine, real-time Per-Team Tablist Buffers, a 6-Channel Display & Stealth Color Matrix, a 3-Mode Combat & Exemption System, a Lobby Kick/Ban Stick, and a Customizable Death Sound Engine.

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What's New in 2.0.0

1. Native Paper 1.21.11 Dialog UI & Small-Caps Theme

• Replaced all inventory chest menus with Native Dialog screens (DialogType.multiAction) featuring custom small-caps typography (sc(...)), compact 280px layouts, 12x12 icons, interactive checkboxes, and a 6-tab top navigation bar.
• Added /qt duplicate <@team> (one-click team cloning with auto-numbered names) and /qt rename <@team> <new_name> (live team renaming).

2. PacketEvents Migration & Per-Team Tablist Buffers

• Migrated from ProtocolLib to PacketEvents 2.7+, handling CHUNK_DATA, BLOCK_CHANGE, MULTI_BLOCK_CHANGE, ENTITY_METADATA, TEAMS, and PLAYER_INFO_UPDATE directly on the Netty pipeline.
• Added Tablist Team Buffers that display ✦ @TeamName (X online) directly above each team's players in the tablist, counting only the online players in that specific team.
• Removed legacy profile/skin spoofing so real player names and overhead nametags never disappear.

3. 6-Channel Display Controls & Stealth Overhead Color

• Added independent Prefix and Color checkboxes for Nametag, Tablist, Chat, Killfeed, Join/Leave, and Commands, plus Color Chat Text and Nametag Visibility.
• Added Stealth Overhead Color Spoofing, hiding a team's overhead color and tag from non-glow viewers via packet manipulation.

4. 3-Mode Combat Matrix, 4-Tier Exemptions & Immortality

• Upgraded Friendly Fire into a 3-Mode Combat Matrix (NO_PVP, REDUCED with configurable % multiplier, NORMAL) across Teammates, Allies, and specific Rival Teams.
• Added 4-Tier PvP Exemptions (DEFAULT, GOD_ATTACKER, FORCE_PVP, PACIFIST) and Immortality (God Mode) for both teams and individual players.

5. Lobby Kick Stick (1s), Death Sounds & World Whisper Muting

• Added the Lobby Kick Stick (1s) / Timed Ban Stick (/qt kickstick) and Lobby Team Admission (/qt admit).
• Added the Customizable Death Sound Engine (/qt deathsound) with 8 presets, custom sound keys, native volume/pitch sliders, and audience routing.
• Updated Server Join/Quit and World Enter/Leave messages to render in 100% yellow and added automatic /msg & /whisper blocking when a world's messages are muted.
• Added a dedicated /tp & /teleport command executor/tab-completer so online players, @p, @s, @a, @r, @box, and @teams tab-complete in every argument slot.

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Upgrade Instructions (1.2.0 -> 2.0.0)

1. Stop your Paper 1.21.11 server.
2. Replace ProtocolLib.jar with packetevents-spigot-2.7.0.jar (or newer) if not already installed.
3. Replace your old QTeams.jar with QTeams-2.0.0.jar.
4. Start the server—your existing teams.yml will automatically migrate to the 2.0 schema.