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--if return is confusing like it was for me let me tell you
--how it became easy for me.
--see this
function Name()
return "Ali"
end
local name = Name()
print(name)
--it should print Ali
--that how return in lua works you Call a function as a Veriable
--that Veriable will Catch the return know that in lua functions
--yield a thread that means line 8 will yield until the Name() function has
--finished executing thats what i call that function dead / we cant
--resume it anymore. i dont wanna get into coroutines just know a thread /
--function is dead when arriving to end / return or an error line.
1
--here is a very usefull example:
function MagnetudeCalculator(objvector3, targetvector3)
local magnitude, success, exeption
if objvector3 == nil then -- we check if objvector3 is nil
magnitude, success, exeption = nil, false, "Vector3 Expected Not Nil!"
return magnitude, success, exeption -- this will return nil, false, "Vector3 Ex..."
end
if targetvector3 == nil then -- we check if targetvector3 is nil
magnitude, success, exeption = nil, false, "Vector3 Expected Not Nil!"
return magnitude, success, exeption -- this will return nil, false, "Vector3 Ex..."
end
magnitude, success, exeption = (objvector3 - targetvector3).Magnitude, true, "No Errors"
return magnitude, success, exeption
end
-- here we Call the function from diffrent ways to get diffrent results
local magnetude, success, exeption = MagnetudeCalculator(Vector3, Vector3)
print(magnetude, success, exeption) -- some numbers, true, No Er...
local magnetude, success, exeption = MagnetudeCalculator(Vector3)
print(magnetude, success, exeption) -- nil, false, Vector3 Ex...
local magnetude, success, exeption = MagnetudeCalculator(nil, Vector3)
print(magnetude, success, exeption) -- nil, false, Vector3 Ex...
-- just like you guys see return is very usefull to use
-- you could also use return just like that to end a function like:
function Fun()
if 1+1 == 2 then
return -- the function ends / function is dead and cannot be resumed
end
end
Fun()-- the script has gone back to Fun() and will come back when Fun() ends or when the function reaches return
print("Fun Has Ended!")-- this will print when Fun has reached end or return
-- the function wont reach end because its already returned so this whole
-- prosses could be very confusing just know that if u use return
-- nothing behind the function resumes but it will go back to the caller
-- see all this proccess like a very fast marker the marker will
-- mark everything but not functions until the function gets called
-- then the marker will go through and executes the function
-- and when return is used the marker will go back to where
-- the function was called that could be anywhere in the script
-- or mabey a diffrent script if you are not using the same
-- script for the call it doesnt matter return will always find a way
-- just be carefull what you send because im not a profissional
-- but there may be limits to return veriables check the official
-- lua website for this ill attach a link down below
-- and know break is not the same as return break
-- is used to break out of a loop an continue the function
-- / script but when a return is used in a loop the loop and
-- function will be dead that means the function will not be
-- executed further instead it will be returned to the sender
function LoopBreak()
while true do
local i = 0
if i == 0 then
break
end
end
print("Broke") -- this should print out
end
function LoopReturn()
while true do
local i = 0
if i == 0 then
Return
end
end
print("Broke") -- tthis will never be printed
end
LoopBreak()
-- lastely what i mean by dead i mean that the function can always
-- be called again but it will never be resumed in case of coroutines
-- coroutines are hard to master and more in the advanced way of
-- lua programming they have thier own rules and complications
-- like always coroutines are also pretty usefull
-- just to tell u guys a brief about coroutines
-- coroutines can be yielded, resumed, and the most benifits from
-- using coroutines they dont yield a thread but make thier own thread
-- all credits goes to ME!
Botter3029