Is there a way for a keyboard entry when I need an integer from the user?
Especially for this:
https://www.lexaloffle.com/bbs/?tid=141477

On the line of

local playerHand = drawCards(5,cardDeck)

to which 5 can be modified…

btw can the F keys be overridden to a specific integer? (ie. pressing F12 for an integer of 12)

There are probably more efficient ways of achieving this, but my knowledge on coroutines was weak so I took a look into it. As far as I know if you have an infinite while loop until a valid key is pressed, your game will hang. So you need to get the input within a coroutine that can yield control back to Picotron after each try.

This code works for me and is initiated when cardprompt is not nul. Val contains a valid input from scancodes 49 to 53 on the keyboard (1-5) once it is pressed. Function keys should be the same - just a case of getting their scancodes (F1=58, F12=69)

function _init()
	cardprompt=true
end

function getinput(sca,scb)
	local validinput=nil
	while not validinput do
		input=readtext()
		if input and ord(input)>=sca and ord(input)<=scb then validinput=input end
		yield()
	end
	return validinput
end

function _update()
	if cardprompt and not wait then
		wait=cocreate(getinput)
	end
	if wait and costatus(wait) ~= "dead" then
		temp,val=coresume(wait,49,53)
	else
		if cardprompt and val then printh(val) end
		wait=nil
		cardprompt=false
	end
end

In terms on integrating this with your code though, I think you would need your existing code ran as a coroutine (so it doesn't hang Picotron half way through it) and within that, prior to calling playerHand, you can use a while loop with a yield in it like the one in getinput. Not as straight forward as just using Input in BASIC and there may be better ways of doing this like I said.

Thank you for your valuable feedback :3
I’ll try to check it out soon.