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Players asked for a way to whitelist a whole guild or faction on a vehicle ("too many names to do one by one for each vehicle"; suggestion obfkp-ae392). On Main, whitelists hold 57 names across 27 vehicles, and the busiest cloudskimmer lists 12.

Group switches

The ownership menu gets four switches in its second row: Faction, Guild, Allies and Vassals. A rider is admitted when they own the vehicle, are on its whitelist, or are in a group whose switch is on. The switches add to the whitelist and never change it, and like the whitelist they only matter while whitelisting is on. Each button names the faction or guild it counts from.

VehicleFramework doesn't know factions, so membership comes from a new VehicleAccessGroups service in Bukkit's ServicesManager (SimpleFactions registers it, TF-Minecraft/SimpleFactions#185). It is asked each time someone boards, so leaving a faction removes access at once. The service can also mark a group as always open; SimpleFactions uses that for a faction vehicle's own faction. Without a ready service, or in names mode, the switches are hidden and admit nobody, so a server without SimpleFactions behaves as before.

The switches are saved as payload accessGroups (left out when none are on). Claim, clear and takeover turn them off with the whitelist, and so do CONSTRUCT, RELEASE, HANDOVER and TRANSFER; RESTAMP and MIGRATE keep them. OwnershipValues gains accessGroups(), and its old five-argument constructor stays.

New reasons FACTION_ACCESS_TOGGLE, GUILD_ACCESS_TOGGLE, ALLY_ACCESS_TOGGLE and VASSAL_ACCESS_TOGGLE go through the same edit-check and change events as the whitelist switch.

Tickets only open passenger seats

A ticket used to get a player past the whitelist into the seat menu, where the captain and gunner seats skipped the ticket check, so a ticket holder could drive the vehicle away. Past a whitelist that would refuse them, a ticket now only opens passenger seats ("A ticket only lets you ride in a passenger seat."). With the whitelist off nothing changes. No vehicle on Main has tickets on today.

Testing

• mvn clean verify: 1731 tests pass. New tests cover GroupAccess, the menu buttons and toggles, payload round trips, the system-reason table and the ticket rules. Windows skips 9 POSIX tests, so 10 lines in untouched files show as uncovered locally; every changed class is at 100% line coverage.
• TFMCDev01 with three real character bots and this build plus the SimpleFactions branch (Phase A 22/22, Phase B 6/6): the menu shows the four switches naming Thalendor; a Thalendor member is refused, then boards and drives once Faction is on; a stranger stays out; the switch is saved; a ticket holder is refused the driver seat and takes a passenger seat; a member who leaves Thalendor is refused at once; and a Thalendor pool cart with no switch on admits Thalendor members and refuses others.

Docs: TF-Minecraft/Docs#301

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Reviewing files that changed from the base of the PR and between 757a53f and efd3232.

📒 Files selected for processing: 2

• src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipGUIManager.java
• src/test/java/net/tfminecraft/vehicleframework/managers/CommandAndOwnershipCoverageTest.java

🚧 Files skipped from review as they are similar to previous changes: 2

• src/test/java/net/tfminecraft/vehicleframework/managers/CommandAndOwnershipCoverageTest.java
• src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipGUIManager.java

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📝 Summary

Summary by CodeRabbit

• New Features
  • Added group-based vehicle access for factions, guilds, allies and vassals, with controls and access descriptions in the ownership menu.
  • Access-group settings are saved with vehicle ownership data and retained during migration and restamping.
• Bug Fixes
  • Clarified boarding denials when tickets are disabled, missing or restricted to passenger seats.
  • Improved seat access checks so admitted riders can use seats without tickets, while tickets continue to restrict non-admitted riders.

The change adds faction, guild, ally, and vassal access groups for vehicles. It stores group settings with ownership data, provides ownership-menu controls, and uses group admission in vehicle entry and ticket checks.

Changes: Vehicle access groups

Layer / File(s)	Summary
Access-group contracts and runtime state src/main/java/net/tfminecraft/vehicleframework/api/*, src/main/java/net/tfminecraft/vehicleframework/data/OwnerData.java, src/test/java/net/tfminecraft/vehicleframework/api/OwnershipValuesTest.java, src/test/java/net/tfminecraft/vehicleframework/data/RuntimeValuesCoverageTest.java	The API defines four access groups, their toggle reasons, and a service interface. OwnershipValues and OwnerData hold group state, with tests for defaults, copying, null handling, and immutability.
Access-group persistence and ownership lifecycle src/main/java/net/tfminecraft/vehicleframework/database/*, src/main/java/net/tfminecraft/vehicleframework/ownership/OwnershipStore.java, src/main/java/net/tfminecraft/vehicleframework/vehicles/ActiveVehicle.java, src/main/java/net/tfminecraft/vehicleframework/api/SystemReason.java, src/test/java/net/tfminecraft/vehicleframework/database/VehiclePayloadCoverageTest.java, src/test/java/net/tfminecraft/vehicleframework/ownership/OwnershipStoreTest.java	Vehicle payloads encode and decode access groups. Ownership changes clear groups for CONSTRUCT, RELEASE, HANDOVER, and TRANSFER, and retain them for RESTAMP and MIGRATE.
Ownership-menu group controls src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipGUIManager.java, src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipManager.java, src/test/java/net/tfminecraft/vehicleframework/managers/CommandAndOwnershipCoverageTest.java, src/test/java/net/tfminecraft/vehicleframework/managers/OwnershipManagerTest.java	The ownership menu displays available group controls and fixed always-open groups. Owners can toggle groups through ownership changes. Claims and ownership clearing reset group state.
Group admission and ticket rules src/main/java/net/tfminecraft/vehicleframework/ownership/GroupAccess.java, src/main/java/net/tfminecraft/vehicleframework/ownership/OwnershipAccess.java, src/main/java/net/tfminecraft/vehicleframework/vehicles/handlers/VehicleTicketRules.java, src/main/java/net/tfminecraft/vehicleframework/managers/VehicleManager.java, src/test/java/net/tfminecraft/vehicleframework/ownership/GroupAccessTest.java, src/test/java/net/tfminecraft/vehicleframework/vehicles/handlers/VehicleTicketRulesTest.java, src/test/java/net/tfminecraft/vehicleframework/managers/VehicleManagerCoverageTest.java, src/test/java/net/tfminecraft/vehicleframework/vehicles/controller/RuntimeSupportCoverageTest.java	Group membership contributes to rider admission. Entry and seat-menu checks use the admission result with ticket rules, and VehicleManager sends specific denial messages.

Priority: ➖ Normal

Estimated code review effort: 4 (Complex) | ~45 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant VehicleManager
  participant OwnershipAccess
  participant GroupAccess
  participant VehicleAccessGroups
  participant VehicleTicketRules
  VehicleManager->>OwnershipAccess: Check whether rider is admitted
  OwnershipAccess->>GroupAccess: Check group-based admission
  GroupAccess->>VehicleAccessGroups: Check enabled and always-open groups
  VehicleAccessGroups-->>GroupAccess: Return group membership result
  GroupAccess-->>OwnershipAccess: Return group admission result
  OwnershipAccess-->>VehicleManager: Return admission result
  VehicleManager->>VehicleTicketRules: Check entry using admission result

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Merge Risk: ⚪ Minimal · up to efd32

The menu now names always-open groups correctly and shows their switches as active. No identified issue prevents merging these changes.

- [ ] Autofix · Keep fixing CodeRabbit findings and required CI, and resolving merge conflicts

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Actionable comments posted: 1

---

• 🪄 Fix comments: Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at
@src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipGUIManager.java:
- Line 261: Update the fixed-group lore in the ownership GUI to describe the
specific group using groupLabel(group), rather than always naming the faction;
keep the toggle text for non-fixed groups and update the expected lore in
CommandAndOwnershipCoverageTest.

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📥 Commits

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📒 Files selected for processing: 27

• src/main/java/net/tfminecraft/vehicleframework/api/AccessGroup.java
• src/main/java/net/tfminecraft/vehicleframework/api/OwnershipReason.java
• src/main/java/net/tfminecraft/vehicleframework/api/OwnershipValues.java
• src/main/java/net/tfminecraft/vehicleframework/api/SystemReason.java
• src/main/java/net/tfminecraft/vehicleframework/api/VehicleAccessGroups.java
• src/main/java/net/tfminecraft/vehicleframework/data/OwnerData.java
• src/main/java/net/tfminecraft/vehicleframework/database/ActiveVehicleSnapshotFactory.java
• src/main/java/net/tfminecraft/vehicleframework/database/IncompleteVehicle.java
• src/main/java/net/tfminecraft/vehicleframework/database/VehiclePayloadCodec.java
• src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipGUIManager.java
• src/main/java/net/tfminecraft/vehicleframework/managers/OwnershipManager.java
• src/main/java/net/tfminecraft/vehicleframework/managers/VehicleManager.java
• src/main/java/net/tfminecraft/vehicleframework/ownership/GroupAccess.java
• src/main/java/net/tfminecraft/vehicleframework/ownership/OwnershipAccess.java
• src/main/java/net/tfminecraft/vehicleframework/ownership/OwnershipStore.java
• src/main/java/net/tfminecraft/vehicleframework/vehicles/ActiveVehicle.java
• src/main/java/net/tfminecraft/vehicleframework/vehicles/handlers/VehicleTicketRules.java
• src/test/java/net/tfminecraft/vehicleframework/api/OwnershipValuesTest.java
• src/test/java/net/tfminecraft/vehicleframework/data/RuntimeValuesCoverageTest.java
• src/test/java/net/tfminecraft/vehicleframework/database/VehiclePayloadCoverageTest.java
• src/test/java/net/tfminecraft/vehicleframework/managers/CommandAndOwnershipCoverageTest.java
• src/test/java/net/tfminecraft/vehicleframework/managers/OwnershipManagerTest.java
• src/test/java/net/tfminecraft/vehicleframework/managers/VehicleManagerCoverageTest.java
• src/test/java/net/tfminecraft/vehicleframework/ownership/GroupAccessTest.java
• src/test/java/net/tfminecraft/vehicleframework/ownership/OwnershipStoreTest.java
• src/test/java/net/tfminecraft/vehicleframework/vehicles/controller/RuntimeSupportCoverageTest.java
• src/test/java/net/tfminecraft/vehicleframework/vehicles/handlers/VehicleTicketRulesTest.java

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