Help With Several Stuff

i accidentally start this post so how do i delete this topic??
there is no delete button

Question #1: WHAT? Sorry, the question makes no sense.

Question #2: getfenv and string indices:

local a = 8

local function debug()
    local varname = read() -- type "a"
    print(tostring(getfenv(2)[varname])) -- will print 8
end

Question #3: IF statement doesn't work like that - it works like this:

if expression then
    -- do something if expression was true
else
    -- do something if expression was false
end

nil and false in the expression evaluate false, anything apart from those evaluates true.

LBPHacker, on 28 July 2013 - 12:53 PM said:

Question #1: WHAT? Sorry, the question makes no sense.

Question #2: getfenv and string indices:

local a = 8

local function debug()
    local varname = read() -- type "a"
    print(tostring(getfenv(2)[varname])) -- will print 8
end

Question #3: IF statement doesn't work like that - it works like this:

if expression then
    -- do something if expression was true
else
    -- do something if expression was false
end

nil and false in the expression evaluate false, anything apart from those evaluates true.

I think so if statement is my fault and i will change question how do i call function from string with setfenv

hasunwoo, on 28 July 2013 - 06:36 PM said:

I think so if statement is my fault and i will change question how do i call function from string with setfenv

Not trying to be rude, but use Google Translate. It will help us help you.

I'm completely new to lua and I'm trying to have my mining turtle chop a tree down for me. The code is

function tree()
turtle.detectUp()
turtle.digUp()
turtle.up()
end

The turtle won't even move or mine a block. Can someone help?

You need to supply it fuel unless you are in creative. Put fuel in its inventory and run refuel <amount>.

Yevano, on 28 July 2013 - 08:30 PM said:

You need to supply it fuel unless you are in creative. Put fuel in its inventory and run refuel <amount>.

Don't post a new question on a topic. The 3-post-thresold is not there for nothing.
There is a topic called New members needing to ask questions, please read.

hasunwoo, on 28 July 2013 - 06:36 PM said:

I think so if statement is my fault and i will change question how do i call function from string with setfenv

As I've already mentioned:

local fenv = getfenv() -- gets the function environment table

local function debug()
	local name = read()
	print(fenv[name])
end