[Lua][Turtle]Function help creating simple script

function fuel()
for f = turtle.getFuelLevel()
while f < 56 do
wait(30)
end
end


function uturn()
turtle.turnRight()
turtle.turnRight()
end
fuel()
uturn()

i'm working on a small script but i'm kind of new. the error i get is on line 3 apparently?

::edit:: my problem was i had FOR on line 2. can somebody explain to me why this was causing an error?

xInDiGo, on 28 January 2013 - 09:11 AM said:

function fuel()
for f = turtle.getFuelLevel()
while f < 56 do
wait(30)
end
end


function uturn()
turtle.turnRight()
turtle.turnRight()
end
fuel()
uturn()

i'm working on a small script but i'm kind of new. the error i get is on line 3 apparently?

::edit:: my problem was i had FOR on line 2. can somebody explain to me why this was causing an error?

This is causing a problem because for is intianting a loop. The syntax for this is: for i = 1, variable, step do [your code] end. Step is by default 1

Example:

for i = 1, 10 do
 print(i)
end

for i = 1,10,2 do
 print(i)
end

Try those out and you will know how it works :)/>

remove the 'for' from for k = turtle.getFuelLevel() and it should work. Also wait() is not a valid function unless you made one, but sleep() is what you're looking for. And you may want it to refuel while it's sleeping so it will not sleep for infinity

You could try doing

function fuel()
while turtle.getFuelLevel() < 56 do
wait(30) --unless you made a function named wait(), you'd wanna do sleep(30)
end
end

function uturn()
turtle.turnRight()
turtle.turnRight()
end
fuel()
uturn()

like remiX said, you might want it to refuel while the turtle is waiting/sleeping, else it'd sleep for eternity.