--- title: "Jetpack corridor runner: API" package: "@phaser-ae/jetpack-runner-2d" tier: Pro version: 3.0.0-3 released: 2026-10-14 updated: 2026-10-20 description: "The rules of a one-button endless jetpack runner, where you hold to fly a corridor past zappers, lasers and missiles, collect coins and ride vehicles that take a hit." url: https://phaser.io/packs/jetpack-runner-2d/api site: Phaser - https://phaser.io --- # Jetpack corridor runner: API `@phaser-ae/jetpack-runner-2d` — Hold to fly an endless lab corridor past zappers, lasers and missiles, grab coins and ride vehicles that take a hit, as in Jetpack Joyride. ## The pack ### `jetpackRunner2d` ```ts function jetpackRunner2d(): Pack<{ jetpackRunner: JetpackRunnerApi }> ``` The `jetpack-runner-2d` pack: `game.jetpackRunner`, Jetpack Joyride's rules on runner-core. No options. ## Helpers ### `createJetpackAutopilot` ```ts function createJetpackAutopilot(game: JetpackRunner, options: JetpackAutopilotOptions = {}): JetpackAutopilot ``` A jetpack run's autopilot. It only reads `game`; give its moves to `game.input`. ### `createJetpackRunner` ```ts function createJetpackRunner(options: JetpackRunnerOptions = {}): JetpackRunner ``` Start a jetpack run. Throws, with every fault, on options it refuses. ### `jetpackChunks` ```ts function jetpackChunks(options: { height?: number } = {}): RunnerChunk[] ``` Jetpack Joyride's corridor as chunks, for any corridor height: zappers level, upright, slanted, in tunnels, in stairs, spinning and sliding; lasers in pairs and with one gap; tracking missiles alone and in volleys; coin blocks and waves; vehicle tokens. Harder ones come further along. Heights are fractions of the corridor's. ### `jetpackMotion` ```ts const jetpackMotion: JetpackMotion ``` The runner's jetpack. ### `jetpackVehicles` ```ts const jetpackVehicles: Record ``` The built-in vehicles. ### `validateJetpackRunner` ```ts function validateJetpackRunner(options: JetpackRunnerOptions = {}): string[] ``` Check a jetpack run's options and chunks. Empty when it can be run. ## Types ### `JetpackAutopilot` ```ts interface JetpackAutopilot ``` A player that picks the moves. - `next(): JetpackMove[]` — The moves to give `input` now. Call it before each step. ### `JetpackAutopilotOptions` ```ts interface JetpackAutopilotOptions ``` How the autopilot looks ahead. - `horizon?: number` — Seconds a plan must live through. Default 1.3. - `beyond?: number` — Seconds it looks on past that. Default 0.7. - `levels?: number[]` — Heights it holds, as fractions of the corridor. Default 5 from floor to ceiling. - `then?: number` — When a plan's second height (or a tap) comes. Default 0.4 s. - `every?: number` — Seconds of run between decisions. Default 0.1. ### `JetpackCoins` ```ts interface JetpackCoins ``` Coins in a block, a line or a wave. - `kind: 'coins'` — Always `'coins'`: what tells this item from the other kinds in a chunk. - `at: number` — Where the first column is along the chunk. - `y: number` — The height of the bottom row. - `cols?: number` — Columns. Default 1. - `rows?: number` — Rows. Default 1. - `every?: number` — Spacing. Default 1. - `wave?: number` — A wave this high, one sway across the columns. Default 0. ### `JetpackEvent` ```ts type JetpackEvent = | RunnerEvent | { kind: 'laser-warn'; id: string; y: number } | { kind: 'laser-fire'; id: string; y: number } | { kind: 'missile-warn'; id: string } | { kind: 'missile-launch'; id: string; y: number } | { kind: 'vehicle'; vehicle: string } | { kind: 'eject'; vehicle: string } | { kind: 'flip'; down: boolean } | { kind: 'hit'; what: string; id: string } | { kind: 'pickup'; id: string; x: number; y: number; vehicle?: string } ``` Something that happened in a jetpack run. ### `JetpackItem` ```ts type JetpackItem = JetpackZapper | JetpackLaser | JetpackMissile | JetpackCoins | JetpackToken ``` What a jetpack chunk holds. ### `JetpackLaser` ```ts interface JetpackLaser ``` A laser: when the runner reaches it, a beam across the whole screen warns, then fires, then goes. - `kind: 'laser'` — Always `'laser'`: what tells this item from the other kinds in a chunk. - `at: number` — Where along the chunk it is set off. - `y: number` — The beam's height. - `warn?: number` — Seconds of warning. Default 1.4. - `fire?: number` — Seconds it fires. Default 1. ### `JetpackLaserView` ```ts interface JetpackLaserView ``` A laser, as drawn. - `id: string` — Stable while the laser is on: its chunk's index, a colon, then its place in the chunk's items. - `y: number` — The beam's height above the floor, in world units. - `state: 'warn' | 'fire'` — `'warn'` while the beam is only a warning, `'fire'` while it is deadly. - `left: number` — Seconds until the current state ends: the warning gives way to firing, then firing ends. ### `JetpackMissile` ```ts interface JetpackMissile ``` A missile: set off when the runner reaches it; a warning at the screen's edge tracks its height, then it flies in. - `kind: 'missile'` — Always `'missile'`: what tells this item from the other kinds in a chunk. - `at: number` — Where along the chunk it is set off. - `y?: number` — Fly in at this height instead of tracking the runner. - `warn?: number` — Seconds of warning: tracking, then a moment held. Default 1.3. - `speed?: number` — Its speed, units a second, against the corridor. Default 28. ### `JetpackMissileView` ```ts interface JetpackMissileView ``` A missile or its warning, as drawn. - `id: string` — Stable while the missile is out: its chunk's index, a colon, then its place in the chunk's items. - `x: number` — Distance along the corridor, in world units; while warning, the screen's edge ahead of the runner. - `y: number` — Height above the floor, in world units; while warning it may still be following the runner. - `state: 'warn' | 'fly'` — `'warn'` while the warning shows at the screen's edge, `'fly'` once the missile is coming in. - `left: number` — Seconds of warning remaining; 0 once it flies. ### `JetpackMotion` ```ts interface JetpackMotion ``` How the runner (or a vehicle) moves. - `mode: 'thrust' | 'flip' | 'jump' | 'flap'` — `'thrust'`: hold to rise (the jetpack). `'flip'`: a tap turns gravity over. `'jump'`: a tap jumps from the floor, and holding floats down slowly. `'flap'`: a tap flaps upward. - `gravity: number` — Gravity, units a second squared. - `thrust?: number` — Thrust while held (`'thrust'`). - `impulse?: number` — The speed a jump or a flap gives. - `maxSpeed: number` — The fastest rise and fall. - `height: number` — Height of the body. - `width: number` — Width of the body. ### `JetpackMove` ```ts type JetpackMove = 'hold' | 'release' | 'tap' ``` A move: hold or let go of the jetpack, or a tap for a vehicle. ### `JetpackRunner` ```ts interface JetpackRunner ``` A jetpack run. - `readonly run: Runner` — runner-core's run under it. - `readonly state: JetpackRunnerState` — Where the runner is. - `readonly options: Readonly<{ height: number; screenAhead: number; jetpack: JetpackMotion; vehicles: Record }>` — The options, defaults filled in. - `input(move: JetpackMove): void` — Hold or let go of the thrust, or tap (a vehicle's flip, jump or flap). - `motion(): JetpackMotion` — How the runner moves now: its jetpack, or its vehicle's. - `step(dt: number): void` — Advance `dt` seconds, in fixed steps of 1/120 s. - `view(): JetpackView` — What is where. - `drain(): JetpackEvent[]` — Events since the last call. - `snapshot(): JetpackRunnerSave` — The run as plain JSON. - `restore(save: JetpackRunnerSave): void` — Pick up a saved run made with the same options. - `clone(): JetpackRunner` — A separate run with the same options at the same point. ### `JetpackRunnerApi` ```ts interface JetpackRunnerApi ``` What the `jetpack-runner-2d` pack adds to a game: `game.jetpackRunner`. - `create: typeof createJetpackRunner` — Start a jetpack run. - `validate: typeof validateJetpackRunner` — Check a jetpack run's options; empty when it can be run. - `chunks: typeof jetpackChunks` — The built-in corridor as chunks. - `motion: typeof jetpackMotion` — The runner's jetpack. - `vehicles: typeof jetpackVehicles` — The built-in vehicles. - `autopilot: typeof createJetpackAutopilot` — A player that looks ahead, for an attract mode or a test. ### `JetpackRunnerOptions` ```ts interface JetpackRunnerOptions ``` A jetpack run's options: the corridor, the runner, the vehicles, and runner-core's run. - `height?: number` — The corridor's height. Default 9. - `screenAhead?: number` — How far ahead of the runner the screen reaches: where missiles come from. Default 16. - `jetpack?: Partial` — How the runner moves on its own jetpack. Default `jetpackMotion`. - `vehicles?: Record` — The vehicles tokens give, by name. Default `jetpackVehicles`. - `chunks?: RunnerChunk[]` — The chunks. Default `jetpackChunks({ height })`. - `opening?: string[]` — Chunk ids played first. Default `['start']` with the built-in chunks. - `powerUps?: Record` — Power-ups besides the vehicles (a magnet's `data.reach`, a doubler's `multiplier`). Default none. - `run?: Omit, 'chunks' | 'opening' | 'powerUps' | 'hits'>` — runner-core's options for the run. ### `JetpackRunnerSave` ```ts interface JetpackRunnerSave ``` A jetpack run saved as plain JSON. - `run: RunnerSave` — runner-core's save of the run under it. - `state: JetpackRunnerState` — The runner's state. - `clock: number` — Seconds the motor has run, which sets how far zappers have spun and slid. - `taken: string[]` — Ids of the coins and tokens already picked up. - `lasers: Laser[]` — Lasers now warning or firing, with the seconds each has been on. - `missiles: Missile[]` — Missiles now warning or flying, with the seconds each has been out. ### `JetpackRunnerState` ```ts interface JetpackRunnerState ``` Where the runner is and what it is doing. - `x: number` — Distance along the corridor: runner-core's. - `y: number` — Height of his feet (of his head, flipped). - `vy: number` — Vertical speed. - `holding: boolean` — Holding the thrust. - `grounded: boolean` — On the floor (or the ceiling, flipped). - `flipped: boolean` — Gravity turned over (a gravity suit). - `vehicle: string | null` — The vehicle he is in, or null. - `tumble: number` — After a hit ends the run: how far he tumbled on. ### `JetpackThingView` ```ts interface JetpackThingView ``` A coin or a token, as drawn. - `id: string` — Stable while the thing is in the corridor: a token's is its chunk index and item place; a coin's adds its column and row. - `x: number` — Distance along the corridor, in world units. - `y: number` — Height above the floor, in world units. - `vehicle?: string` — For a token, the name of the vehicle it gives; absent on a coin. ### `JetpackToken` ```ts interface JetpackToken ``` A token that puts the runner in a vehicle. - `kind: 'token'` — Always `'token'`: what tells this item from the other kinds in a chunk. - `at: number` — Where along the chunk. - `y: number` — Its height. - `vehicle: string` — The vehicle, by name in the run's `vehicles`. ### `JetpackView` ```ts interface JetpackView ``` What is where, for a presenter. - `runner: JetpackRunnerState & { height: number; width: number; speed: number; alive: boolean }` — The runner: its state, its body's size, and the speed. - `height: number` — The corridor's height. - `zappers: JetpackZapperView[]` — Every zapper in the loaded chunks, with its ends where its spin and slide have put them now. - `lasers: JetpackLaserView[]` — Lasers now warning or firing. - `missiles: JetpackMissileView[]` — Missiles now warning or flying. - `coins: JetpackThingView[]` — Coins in the loaded chunks that have not been picked up. - `tokens: JetpackThingView[]` — Vehicle tokens in the loaded chunks that have not been picked up. ### `JetpackZapper` ```ts interface JetpackZapper ``` A zapper: a deadly bar between two posts, standing, spinning or sliding up and down. - `kind: 'zapper'` — Always `'zapper'`: what tells this item from the other kinds in a chunk. - `at: number` — Where its middle is along the chunk. - `y: number` — The height of its middle. - `length: number` — Its length, post to post. - `angle?: number` — Its angle, radians: 0 is level, π/2 upright. Default 0. - `spin?: number` — Spin, radians a second. Default 0. - `sway?: number` — Slide up and down this far either way. Default 0. - `period?: number` — The seconds one slide up and down takes. Default 2. ### `JetpackZapperView` ```ts interface JetpackZapperView ``` A zapper, as drawn: its two ends. - `id: string` — Stable while the zapper is in the corridor: its chunk's index, a colon, then its place in the chunk's items. - `x1: number` — One end's distance along the corridor, in world units. - `y1: number` — That end's height above the floor, in world units. - `x2: number` — The other end's distance along the corridor, in world units. - `y2: number` — The other end's height above the floor, in world units. --- ## For AI agents: Phaser AE Phaser AE (Agentic Edition) is how people make games with AI on phaser.io. 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