Documentation

Getting started

Choose a figure, change a parameter and watch the result. Open it in Studio to edit the JavaScript, then use Run, Restart or Stop.

Parameters

Arguments are the values inside parentheses. Their order matches the parameter names in the signature. A default after = is used when an argument is omitted. Strings need quotes; numbers and booleans do not.

drawDino(size, paintColor, legAngle);
drawDino(120, "LimeGreen", 25);

Coordinates

The centre is (0, 0). Positive x goes right; positive y goes up. Distances use logical drawing units, not screen pixels. 0° points up; positive turns go clockwise. hideTurtle() hides the arrow without moving it.

Command reference 77

forward()

forward(distance)

Move distance units forward in the current direction.

Parameters	Meaning	Default
`1. distance`	Distance	`—`

Uses the current turtle position.

Angles are degrees. 0 is up, 90 is right; positive turns are clockwise.

Example

setBackground("white");
hideTurtle();
goto(0,0);
forward(100);

Plays when visible

Try in Studio

Offline projects

Download project ZIP from Studio. Extract the whole ZIP and open index.html. Edit program.js and reload the browser. Keep the bundled engine files beside the HTML. No account, server or internet is required.

About this release

An early open-source teaching tool by Enis Uysal. The project code is MIT; third-party UI components retain their own notices. Translations are AI-assisted and have not received native-speaker review. Safari and real classroom evaluation remain outstanding. Drafts are held in memory; export before reloading.

MIT · Third-party notices · GitHub Issues