Instead of do…loop, or while…wend, or if…endif, or for…next, Lua just uses "end" as a general loop-breaker. Note that "do" on its own won't loop here (though it can be used to declare some local variables and discard them quickly, something you won't want to do often); use a "while true do" statement for a quick'n'dirty infinite loop. Also note that "if" statements, even single line ones, MUST be "end"ed in Lua.
Eg:
while something do
if something then
for i=1,10 do
somecode
end
end
end
When comparing things, use "==" to see if they're the same (instead of just "="), "~=" to see if they're different (instead of "<>"). When assigning values just use "=".
"input = redstone.getInput(left)" sets "input" to the state of the redstone signal when this line is called. "input" will either be "true" or "false", and it will not change when the redstone signal does; you'd need to call "redstone.getInput(left)" again to get an up-to-date status.
"input == true" will resolve as either true or false directly depending on whether "input" is true or false. You can hence simply specify "if input then".
To increment "x" you must use good ol' "x=x+1".
So with all that said, a quick re-write might look like this:
local x = 0 -- Pre-declare a couple of variables.
local event = "" -- Somewhat less system-intensive then re-declaring them over and over later.
while true do -- Repeat this loop forevah
while redstone.getInput(left) do -- Repeat this loop so long as we're getting a redstone signal.
if x == 0 then print("Timer started!") end
x=x+1
print(x)
sleep(1)
end
print("Timer stopped!")
x=0
event = os.pullEvent("redstone") -- Causes the program to sleep until the redstone signal changes.
end
os.pullEvent() offers a number of ways to have your program sleep until a certain event occurs (and to get information about those events when they do).
