Add something to be able to react/process keyboard's presses - readchar maybe?

[slavap]

It is possible to control mouse movement and button clicks, but nothing like that is available for keyboard (at least I see nothing in the docs).
Then it will be possible to implement simple interactive games.

[bojidar-bg]

Just to list what other Logo-s are doing:

FMSLogo has KEYBOARDON [ onkeydown commands ] / (KEYBOARDON [ onkeydown commands ] [ onkeyup commands ]) where the commands can make use of KEYBOARDVALUE, which holds the last pressed/released key; plus KEYBOARDOFF that can disable the handler.

NetLogo has buttons which can be configured in a GUI and set to trigger when a certain keyboard key is pressed.

TerrapinLogo has READCHAR which blocks until the next character is inputted as well as KEY which works without blocking.

[slavap]

@bojidar-bg
It should work without blocking, KEYBOARDON looks as right thing, KEY is ok as well.

[bojidar-bg]

KEY is most likely not what we want, as it can't handle keyup events. FMSLogo's KEYBOARDON should work nicely though, agreed.

I'd personally also love to also have something like a KEYP/KEY?/KEYDOWNP/KEYDOWN? :key, just to be able to quickly test whether a given key/keycode is currently pressed without having to setup a KEYBOARDON handler and related variables—but, oddly enough, none of the Logos I looked at had a function quite like that... 🤔

[slavap]

@bojidar-bg KEYP/KEY?/KEYDOWNP/KEYDOWN? :key - is quite a good idea as well and consistent with existing mouse support.