Can't get this working

I'm trying to make a simple redstone pulse counter that displays the count on a monitor. I'm a newbie to lua so
whats wrong with it?

output = 0

if rs.getInput("back",true) then
output = output + 1
mon.clear()
mon.write(output)
end

rs.getInput() does not require a boolean. Also the mon. function will not work unless you have your own mon API with those functions in it. See comments below.

local output = 0 -- better to use local vars, less problematic

is rs.getInput("back") then
output = output + 1
term.clear()  -- mon.clear() wont work unless you've made your own API called mon with a clear function. The next two lines will clear screen and move cursor back to the top
term.setCursorPos(1,1)
write(output) -- same thing with the mon here, just use write() or print()
end

@luanub: Im not shure but can it be that mon is for monitor? then he forgot the peripheral.wrap

ardera, on 08 August 2012 - 07:01 AM said:

@luanub: Im not shure but can it be that mon is for monitor? then he forgot the peripheral.wrap

Ya that is possible that it is a var for the monitor and that we are not seeing all of the code. If that is the case then it should be fine the way it was originally.

don't forget to loop it, enclose all of that in a loop with a sleep(0.5) or it will just check once and end

you could also use os.pullEvent() instead of sleep(0.5) as it will return something every time the redstone input changes