The gap
Tracks drawn from free control points easily get bends so tight that the inner lanes fold over themselves.
Game templates
Groovewick Game Template
The complete source of Groovewick, a slot-car racing game with three lanes, lane changers, two rival cars and eight smoothed tracks.
- JavaScript
- Canvas 2D
- Web Audio
- Playwright
- Coming soon
Coming soon
Not published on its store yet, so there is no buy or download link. PN Scripts does not take payment for it here.
What it solves
What it is
This template resamples each loop and eases every bend below a minimum radius before it builds the lanes, so every lane is drivable and every bend has a clear safe speed.
How you use it
Unzip, serve the folder and open index.html, then edit game.js; npm test plays it again in headless Chrome.
Source code of a real, playable game to reskin and learn from, with a smoke test whose bot plays it.
Who it is for
Use it when
- Publishing a one-button racing game, or any game where things move along fixed curved paths.
- Learning how a complete slot-car racing game is built in plain JavaScript and Canvas 2D.
- Building a branded mini-game for a client.
Built for
- Web and indie game developers who know some JavaScript.
- Developers who want a finished, tested game to build on instead of a blank canvas.
What you get
Lanes from one centre line
Each lane is the centre line pushed sideways along its normal; arc length and curvature are stored per point, so position, heading and the grip check are cheap lookups.
Throttle is the whole game
Speed squared times curvature is the sideways force; above the grip limit the car leaves the groove, so the skill is letting go at the right moment.
No build step
Plain JavaScript and Canvas 2D; open index.html through any static server and edit game.js.
A smoke test
A headless Chrome test loads the game, checks the console, presses keys and taps, and lets the built-in bot play a run to its result screen.
Gallery
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Specs
- Availability
- Coming soon
- Vendor
- PN Scripts
- Type
- Template
- Platforms
- JavaScript
- Pricing
- One-time purchase Price to be announced.
- License
- PN Scripts Template Licence 1.0
- Deployment
- Download (ZIP of source code)
- Maturity
- v1.0.0
Compatibility
| Platform or runtime | Supported versions | Tested up to |
|---|---|---|
| Node.js | 22.12 or newer | Not stated |
Stack
- JavaScript
- Canvas 2D
- Web Audio
- Playwright
The Groovewick template is coming soon
The template is finished and tested. It is not on sale yet; this page will say where to get it when it is.
Coming soon
Not published on its store yet, so there is no buy or download link. PN Scripts does not take payment for it here.
Questions
Make and sell any number of your own games from it, and build games for clients. You may not resell or share the source code itself (PN Scripts Template Licence 1.0).
Any static web server to run the game, and some JavaScript. Node.js 22.12 or newer and Google Chrome run the smoke test.
No ad or portal SDK. The game text is in English and Bulgarian, chosen from the browser language. It is tested in desktop Chrome and a phone-sized Chrome viewport with touch, not yet on iOS Safari, Firefox or a real phone.
The code was written with AI assistance and checked by PN Scripts with automated tests. All visuals and sounds are generated by code; there are no AI-generated image or audio files.
It is not on sale yet. When it is, this page will link to the store; PN Scripts does not take payment on this site.
