Airline

**Airline** adds bookable scheduled flights to your server. Players open an
airport GUI, pick a destination and ticket class, and are flown there by a
Happy Ghast — with realistic takeoff, cruise and landing.

### Feature highlights

- **Airports** with terminal, gate and arrival point, per world.
- **Check-in blocks** — right-click at the airport opens the booking GUI.
- **Routes** (directional or `--both`) with a fixed or distance-based price.
- **Ticket classes** (Economy / First) with own price, speed, permission and
in-flight catering.
- **Batch flights** — one ghast carries up to `max_passengers_per_flight`
players at once.
- **WorldGuard region detection** with a radius fallback.
- **Vault economy** — without Vault, flights are simply free (never broken).
- **Batch safety**: no dismount, no teleports mid-flight, per-tick escape
detection, check-in only at the airport, passenger death does not strand the
group, and a route-length-based time buffer.
- **Fully configurable** — every gameplay value lives in `config.yml`; all
messages in `messages.yml`.

### Installation

1. Download the `.jar` and place it in `plugins/`.
2. Start the server (or `/reload`). The plugin generates `config.yml` and
`messages.yml` automatically.
3. (Optional) Install **Vault** for an economy and **WorldGuard** for region
detection. Both are optional — the plugin works without them.
4. Set up your first airport in-game:
- `/airline add <id> [Name]` — create an airport at your position
- `/airline setgate <id>` and `/airline setarrival <id>`
- `/airline route <from> <to> [price|auto] [--both]`
- `/airline adddesk <id>` — look at the block that should be the check-in
5. Players book with `/airline`, `/checkin` or `/flight` (or right-click a
check-in block).

> **Requires Paper 1.21+ and Java 25.** Permissions: `airline` (use),
> `airline.admin` (manage), `airline.free` (free flights).