Variable not set

[CXXXV]

I'm having this error and i don't have a clue what caused this.

The error message

my writing

 

[maartenvt]

Take a look at this:
http://help.yoyogames.com/hc/en-us/articles/216755888--GMS-S-Variable-Scoping-In-GameMaker
You create local variables in the create event using "var", these variables will not be known outside the scripts or events you create them in.

Use var when you only need the variable in the script you are working on. Declare them without var if you want them to be know throughout the instance of an object. Create global variables if you need them to be known to every object in the game

 

[CXXXV]

Take a look at this:
http://help.yoyogames.com/hc/en-us/articles/216755888--GMS-S-Variable-Scoping-In-GameMaker
You create local variables in the create event using "var", these variables will not be known outside the scripts or events you create them in.

Use var when you only need the variable in the script you are working on. Declare them without var if you want them to be know throughout the instance of an object. Create global variables if you need them to be known to every object in the game

It works, thanks.
Is it a good practice to use function to change value of a variable?

 

[Aura]

Is it a good practice to use function to change value of a variable?

What do you mean?

 

[jo-thijs]

He means having a script set the value of a global variable or an instance variable.

It kind of depends on what you want the script to do,
but if you can avoid it, you should definitely avoid it.

 

[icuurd12b42]

It's not bad practice but you should declare your variables in the create so you know what variables the object instances will use.