Write to a string/global variable

General
1

My idea is quite simple: Add a Kustom Action that allows a change to a global text variable.

An example of where this could be useful is when defining "States" that require more than 2 options

i.e.

Background 1:
- Shape
- Touch Action - Write To Global - 1
- $if(gv(state) = 1, Show, Hide)$

Background 2:
- Shape
- Touch Action - Write To Global - 2
- $if(gv(state) = 2, Show, Hide)$

Background 3:
- Shape
- Touch Action - Write To Global - 3
- $if(gv(state) = 3, Show, Hide)$

2

Hi! You can do this already, actually in your specific case you can do this in 2 ways. Lets go through both.

Text Global

Lets say you want to just increment a counter always by one

  • Add a global of type Text and call it "counter"
  • Write "0" as value
  • Add a Shape, set touch action to "Switch Global"
  • Select the counter global
  • In the formula section write $gv(global)+1$

Done, your counter global will be incremented by one at each touch

List Global

If you want to cycle between a set of values (like 1,2,3) in your example you can do this:

  • Add a global of type List and call it "values"
  • Write "1,2,3" as values
  • Add a Shape, set touch action to "Switch Global"
  • Select the "values" global
  • Select "Go To Next" as action

Done, your global will go from 1 to 3 and back

3

Wow, thank you! This will certainly come in handy!

4

ok however it would be much more useful to be able to directly modify the variable from code. for example: in a loop cycle, being able to perform calculations and then subsequently save them in a variable for later use. as it is now the variable can be practically changed only with a direct interaction from the user, which is not exactly the best

5

"In the formula section write $gv(global)+1$"

Doesn't work for me. The counter variable is named "counter" as per your first step, so the formula should be $gv(counter)+1$.