10 replies to this topic

[Zukamimozu]

So I am trying to make a program where when you press " w " it goes forward " s " it goes back and " a " turns left and " d " turns right then the SpaceBar mines the block in front of it. I don't know what mistake I'm making but I can only move forward...

while true do
local event, param = os.pullEvent()
if event == "key" and param == 17 then
turtle.forward()
else
if event == "key" and param == 30 then
turtle.turnLeft()
else
if event == "key" and param == 31 then
turtle.back()
else
if event == "key" and param == 32 then
turtle.turnRight()
else
if event == "key" and param == 57 then
turtle.dig()
  end
end

Edited by Zukamimozu, 20 November 2012 - 01:04 PM.

[remiX]

You didn't lose it, the program gets saved onto that special turtle. Go into world/computer/<id of that turtle> - The ID you probably didn't know so use the search function and search for it, I'm sure you can remember what it was called. And then show us what you have done so far.

[etopsirhc]

also

 label set <labelName> 

[Zukamimozu]

Oh thanks found it />
This is what I had.

while true do
local event, param = os.pullEvent()
if event == "key" and param == 17 then
turtle.forward()
else
if event == "key" and param == 30 then
turtle.turnLeft()
else
if event == "key" and param == 31 then
turtle.back()
else
if event == "key" and param == 32 then
turtle.turnRight()
else
if event == "key" and param == 57 then
turtle.dig()
  end
end

[Lyqyd]

That code wouldn't have even run.

Try this:

while true do
    local event, param = os.pullEvent()
    if event == "char" and param == "w" then
        turtle.forward()
    elseif event == "char" and param == "a" then
        turtle.turnLeft()
    elseif event == "char" and param == "s" then
        turtle.back()
    elseif event == "char" and param == "d" then
        turtle.turnRight()
    elseif event == "key" and param == 57 then
        turtle.dig()
    end
end

[Kingdaro]

May I offer an alternate solution? You could also have a table of mapped controls to specified functions, instead of a list of elseifs.

local controls = {
  [keys.w] = turtle.forward;
  [keys.s] = turtle.back;
  [keys.a] = turtle.turnLeft;
  [keys.d] = turtle.turnRight;
  [keys.space] = turtle.dig;
}

while true do
  local _, k = os.pullEvent('key')
  if controls[k] then
    controls[k]()
  end
end

But for simplicity's sake, your solution does work better, Lyqyd.

[Zukamimozu]

For whatever reason when I press w a s or d nothing happens... but no errors appear when I run it.

[ChunLing]

Have you tried the fixed code posts? Does neither of them work?

The problem with your code can be illustrated by a bit of proper indenting

while true do
  local event, param = os.pullEvent()
  if event == "key" and param == 17 then
    turtle.forward()
  else
    if event == "key" and param == 30 then
      turtle.turnLeft()
    else
      if event == "key" and param == 31 then
        turtle.back()
      else
        if event == "key" and param == 32 then
          turtle.turnRight()
        else
          if event == "key" and param == 57 then
            turtle.dig()
          end
        end

How exactly you're getting this to run I don't know and don't really want to know.

[remiX]

Zukamimozu, on 20 November 2012 - 05:00 PM, said:

For whatever reason when I press w a s or d nothing happens... but no errors appear when I run it.

Lyqyd and Kingdaro's code will work.

[Zukamimozu]

I feel dumb... I forgot to put fuel in it lol sorry...

[ChunLing]

/> and yet you could only move forward (which requires fuel) and not turn or dig (which don't require fuel) />