[Lua] [Error] os.pullEvent?

while true do
os.pullEvent()
if event == "char" and param1 == "q" then
print ("You pressed Q!")
break
else
print ("You did not press Q")
break
end
end

while true do
local x = os.pullEvent("char") -- you don't need the in event == char thing now
if x == "q" then
print("You pressed Q!")
break
else
print("You did not press Q")
break
end
end

local event, param1 = os.pullEvent()
if event == "char" and param1 == "q" then

tfoote, on 17 June 2012 - 01:54 AM said:

you are not storing a variable for the os.pullEvent(). In order for this to work correctly you need to use this (code below)… I also recommend this webpage…

Webpage:
http://computercraft...le=Os.pullEvent

Code:

while true do
local x = os.pullEvent("char") -- you don't need the in event == char thing now
if x == "q" then
print("You pressed Q!")
break
else
print("You did not press Q")
break
end
end

Let me explain a little more… You must specify which variables the parameters set to…
In my code i specified that parameter 1 was x. this way i would check x to see if it was q.
Also i limited the event type by using os.pullEvent("char")
This way i do not get other types of events.

Let me know if this all works for you and check out that API!

local event, x = os.pullEvent("char")

rednet.open("right")
term.clear()
term.setCursorPos(1,1)
print ("Which turtle would you like to send commands to?")
r = io.read()
while true do
term.clear()
term.setCursorPos(1,1)
print ("Turtlecom wireless (client) v1.4 Running.")
print ("Type 'help' for help or 'exit' to exit.")
x = io.read()
if x == "help" then
term.clear()
term.setCursorPos(1,1)
print ("This program sends commands to the previously designated turtle. Typing 'exit' will cause both the client and turtle to close the program. Commands are as follows:")
print ("w = forward")
print ("s = back")
print ("a = turn left")
print ("d = turn right")
print ("q = up")
print ("z = down")
print ("r = place up")
print ("f = place")
print ("v = place down")
print ("Will return to interface in 10 seconds")
sleep(10)
elseif x == "exit" then
rednet.send(r, "exit")
break
elseif x == "w" then
rednet.send(r, "w")
elseif x == "s" then
rednet.send(r, "s")
elseif x == "a" then
rednet.send(r, "a")
elseif x == "d" then
rednet.send(r, "d")
elseif x == "q" then
rednet.send(r, "q")
elseif x == "r" then
rednet.send(r, "r")
elseif x == "f" then
rednet.send(r, "f")
elseif x == "v" then
rednet.send(r, "v")
else
print ("That is not a valid commans")
sleep(1)
end
end

while true do
  local event, param1 = os.pullEvent("char")
  if param1 == "q" then
    print ("You pressed Q!")
    break
  else
    print ("You did not press Q")
    break
  end
end

deity12, on 17 June 2012 - 02:48 AM said:

Sorry, tfoote what you gave me still does the same thing. I'm not to sure what you're trying to say sorry MysticT? If you could give me a fixed version of my code I could probably learn from it. I also have another question, no sense in creating another thread.
So, I have this program which sends messages to a turtle, which acts accordingly, the turtle part of the code is going fine but the client end (from the computer) is having problems. Rednet :347: positive umber expected.
Here is the code:

- snip -

I'm pretty sure I know why, but I'm not sure how to fix it? io.read() returns a string right? Therefore 'r' is a string and rednet won't accept a string as the receiver id. But I'm not sure how to get use input without the output being a string, rather than number. Is there a specific function? I don't need a rewrite of my code just the name of the function (unless of course that isn't the problem). Thanks in advance!

local id = tonumber(read())

MysticT, on 17 June 2012 - 03:38 AM said:

Fixed code for pullEvent:

while true do
  local event, param1 = os.pullEvent("char")
  if param1 == "q" then
	print ("You pressed Q!")
	break
  else
	print ("You did not press Q")
	break
  end
end

MysticT, on 17 June 2012 - 03:38 AM said:

The problem is that read() returns a string, and rednet.send needs a number. You have to convert it with tonumber:

local id = tonumber(read())

tfoote, on 17 June 2012 - 04:40 AM said:

MysticT, on 17 June 2012 - 03:38 AM said:

Fixed code for pullEvent:

while true do
  local event, param1 = os.pullEvent("char")
  if param1 == "q" then
	print ("You pressed Q!")
	break
  else
	print ("You did not press Q")
	break
  end
end

BTW: That code was given by MisticT

Do you have to have the event part in…
local event…
??

MysticT, on 17 June 2012 - 01:55 AM said:

os.pullEvent returns the event type even when you give it a parameter, so you need to do:

local event, x = os.pullEvent("char")

event will always be "char", but you need it anyway.