home

heroText

tagline

actions

footer

highlights

true

Welcome to the official ct.js docs!

Learn ct.js, complete tutorials, and contribute to ct.js documentation

text	link	type
Get started →	/ct-concepts.html	primary

Ct.js documentation. Except where otherwise noted, content is licensed under a Creative Commons Attribution 4.0 International License.

features

title	icon	link	details
Learn JavaScript	graduation-cap	learn-js/jsintro_pt1.html	Games made in ct.js can use JavaScript, or simply JS, to code their gameplay logic. Learn the needed part of it in our little <a href="learn-js/jsintro_pt1">Introduction to JavaScript</a>.

title	icon	link	details
Learn Catnip	diagram-next	learn-catnip/introduction.html	Catnip is ct.js' visual programming language. Learn how to write scripts in Catnip fast🔥 and correctly🧑‍🔬 in our <a href="learn-catnip/introduction">three-chapter guide.</a>

title	icon	link	details
Complete tutorials	lines-leaning	tutorials/making-games-shooter.html	The best way to learn is by <em>making</em>, and you can create real games with our step-by-step tutorials: <ul> <li><a href="tutorials/making-games-shooter">Make a space shooter game →</a></li> <li><a href="tutorials/making-games-platformer">Create a platformer →</a></li> <li><a href="tutorials/making-games-jettycat">Create Jetty Cat, a flappy-bird-like game →</a></li> </ul>

header	image	description
Get the cheatsheet	/assets/img/CheatsheetThumbnail.png	Available in English, Russian, Spanish and Brazilian Portuguese languages. <br> <a class="route-link auto-link vp-hero-action primary no-external-link-icon" href="https://comigo.itch.io/ct-cheat-sheet" aria-label="Download the cheatsheet">Download the cheatsheet</a>

header

features

Notable changes and additions in ct.js v5

title	icon	details
Catnip — new visual programming language	diagram-next	Catnip is a new programming language made specifically for ct.js, in which you compose game logic with command blocks. Examples translated to Catnip are already bundled with your ct.js copy!

title	icon	details
New asset type: Typefaces	t	Typefaces replace Fonts and allow adding multiple font files in one font family, easing programmatic use of text labels and integrating with styles more tightly.

title	icon	details
Bitmap Text base class and bitmap text support in Buttons and Textboxes	bold	A new base class allows utilizing exported bitmap fonts without additional code and placing crisp, pixel-perfect UI elements in the UI editor.

features

title	icon	link	details
Join the Discord server	users-between-lines	https://comigo.games/discord	Join our <a href="https://comigo.games/discord" target="_blank">Discord server</a> to meet other game developers, receive help, aid others, and share your creations.

title	link	icon	details
Post on our Forum	https://forum.ctjs.rocks/	comments	<a href="https://forum.ctjs.rocks/" target="_blank">Forum</a> is also a place for fans and followers, but platform-independent.

title	icon	link	details
Contribute	code-merge	https://github.com/ct-js/docs.ctjs.rocks	<a href="https://github.com/ct-js/docs.ctjs.rocks">Set up a dev environment</a> to run a local docs server and use simple Markdown syntax to write new tutorials and send fixes.<br>You can also edit docs on Github — look for "Propose edits" links at the bottom of each page!