Why does this work...
repeat
script.Parent.Reflectance = script.Parent.Reflectance+0.1
wait(0.2)
until script.Parent.Reflectance == 1
and this one doesn't?
local a = script.Parent.Reflectance
repeat
a = a+0.1
wait(0.2)
until a == 1
Wanted to clear up my curiosity.
Problem
Declaring the variable "a" in the second loop is saving the object's reflectance as a number - it is not holding a reference to the reflectance property.
When is it appropriate to declare a variable then?
Instead of just creating a variable that holds a number, and changing that number (which evidently will not update the property), you should create one referencing the object you're trying to change - to shorten your code and make it look nicer. Here's an example:
-- You should also make your variable names memorable, instead of just using random characters.
local parent = script.Parent
repeat wait(0.1)
parent.Reflectance = parent.Reflectance + 0.1
until parent.Reflectance >= 1
This same logic applies with anything else you're trying to change. You want to create a reference to another reference - not it's value if you are to change it.
Very well answer and explanation. Does this also apply to other loops?
This discussion is preserved as it was. New answers, comments, and votes are closed.
6 comments
It has to do with adding decimals in Lua. If you add a whole number to a on line 4, and divide by 10, it should fix the problem.
Here's a question that was asked awhile ago that relates to your probelm https://scriptinghelpers.org/questions/29524/trouble-with-numeric-for-loop-and-step-variant
So instead of "+0.1" you are saying that I should replace it with "+(1/10)"?
Yeah. This hasn't been tested, but that would be the first thing I would test.
okay, scratch that =3
I tested it and it did not work either.