[Question] detect a redstone input

if rs.getBundledInput("colors.clear") then
end

--simple example, prints "Red On" or "Red off" whenever red changes states

--loop forever - terminate with ctrl-t
while true do

  --wait for a redstone event.
  local event = os.pullEvent("redstone")

  --test the red input wire
  local redState=rs.testBundledInput("back",colors.red)

  --if redState is true (red wire is on)...
  if redState then
    print("Red on")
  else
    print("Red off")
  end
end

while true do
  os.pullEvent("redstone")
  print("Red "..(rs.testBundledInput("back",colors.red) and "on" or "off")
end

GopherAtl, on 10 September 2012 - 10:21 PM said:

you really want to write this as an event-based program using os.pullEvent(), there's an example program on the wiki. You'll listen for the event "redstone" and then check the signal with redstone.getBundledInput, something like this.

Not at a computer with Minecraft/CC right now, so can't test this, but this code ought to work?

--simple example, prints "Red On" or "Red off" whenever red changes states

--loop forever - terminate with ctrl-t
while true do

  --wait for a redstone event.
  local event = os.pullEvent("redstone")

  --test the red input wire
  local redState=rs.testBundledInput("back",colors.red)

  --if redState is true (red wire is on)...
  if redState then
	print("Red on")
  else
	print("Red off")
  end
end

Spoiler

I can hear some of you thinking "that program is sooo long you should do X,Y,Z" and I know. The point here is to teach concepts, not to make the shortest code possible. The whole same thing could be written as…

while true do
  os.pullEvent("redstone")
  print("Red "..(rs.testBundledInput("back",colors.red) and "on" or "off")
end

…but that's a lot harder to parse to someone new to lua and cc :D/>/>

while true do
   local event = os.pullEvent("redstone")
   local Red=rs.testBundledInput("back",colors.red)
   local Yellow=rs.testBundledInput("back",colors.yellow)
   local Orange=rs.testBundledInput("back",colors.orange)
   local Blue=rs.testBundledInput("back",colors.blue)
   if Red then
   print "Red"
   elseif Yellow then
   print "Yellow"
   elseif Orange then
   print "Orange"
   elseif Blue then
   shell.run"clear"
   end
end

Cranium, on 13 September 2012 - 09:33 PM said:

You might be able to use term.setTextSize(#), but I have never tried that…. You might get an error. Usually it would be mon.setTextSize(#)

Finnvos123, on 13 September 2012 - 09:23 PM said:

That's why I'm asking.
how to make the text on the monitor bigger.
:P/>/>

mon = periperal.wrap("back") -- change to where your monitor is

mon.setTextScale(0.5)