pbtn clarification about tic-80 HOT 7 CLOSED

pbtn returns true if button wasn't pressed last tick
also returns true on every 6 ticks if you pressed it more than 30 ticks
it designed to use it with menus or items select (like in pico8)

from tic-80.

Could be possible to add a sign to the method to make it works as a single shot trigger? Something like pbtn(0,1)?
Is the wiki here editable to add some documentation?

from tic-80.

Not sure if we need make api more complicated in this case, so you can use code like that

local last=0
function btnp(index)
	return btn(index) and (last&(1<<index)==0)
end
function TIC()
	if btnp(4) then 
		trace("pressed A")
	end
	last=btn()
end

PS.
Unfortunately I found ugly bug in TIC integration with Lua and the code above will work only in 0.0.14 😕

from tic-80.

Thanks for the nice snippet. I wrote a similar workaround in Tic Tac Toe demo, but have this in the API would make the code looks cleaner.

from tic-80.

Ok, can do something like that
btnp [ id [ hold period ] ] -> pressed
it will return true every period ticks if button is held for hold ticks
by default btnp(id) will work like "single shot trigger"

from tic-80.

That will fit really well in the API and will cover most of common needs.

from tic-80.

fixed in 0.0.14

from tic-80.