best way to make a on/off button?

guilleface

hi, i always run into this problem, ok so i have a actor, when "power" is true display green image, when "power" is off display red image.. now on my actor i have, when touch is pressed and "power" is false, change "power" to true, and when touch is pressed and "power" is true, change "power" to false, now this sound to me a good logic, but the thing is , when pressing and changing power to on, then the other rule takes effect immediately, changing power to off, i try using when releassed too ,many ways but is not working.

JohnPapiomitis

make your power attribute a integer attribute
then do when touch is pressed
change attribute power to (power+1)%2

tenrdrmer

Instead of true false use an integer attribute

and then make all your true rules based off when the attribute is 1 and false is 0

Now in your button all you need is

When touch is pressed
--Change game.buttonOnOff to (game.buttonOnOff + 1)%2

That will switch the attribute between 1 and 0 constantly

guilleface

oh my god all this time adding many attributes to make it work and it was that easy, i should asked early lol, thanks a lot you have no idea how much time i will save from now on ,but i still don't get the formula, if power is =1, then when press i am changing 1 to (1+1)%2 = 2%2
now i have no idea how i get 0 from 2%2?

tatiang

@guilleface The % symbol is a modulo operation (http://en.wikipedia.org/wiki/Modulo_operation) that returns the remainder when dividing two numbers. So for example, 6%4 means that when you divide 6 by 4, you get 1 with a remainder of 2. So 6%4=2.

The reason it works well for switches in GameSalad is because if power is 0 (off), then (0+1)%2=1 (on), and if power is 1 (on), then (1+1)%2=0 (off). So each time you add one to power, the modulo toggles the value between 0 and 1.

tenrdrmer

You can also use this for a series of numbers.

Lets say you had 4 separate states of an actor you wanted to cycle through. 0-3

Using (game.attribute+1)%4 it cycle through 0, 1, 2, 3, 0, 1 , 2, 3, Etc…for each touch

MarkOnTheIron

I love the % operation. It's perfect for loops.

Since it always result in a positive whole number you can also use it on index attributes instead of integer ones.

guilleface

Wow using gamesalad for a year and didn't know this amazing rule, thanks for the great info guys.

AngryBoi

my boy socks with the hookup

Socks

@MoneyBags said:
my boy socks with the hookup

What !?

Socks

@MarkOnTheIron said:
I love the % operation. It's perfect for loops.

Since it always result in a positive whole number you can also use it on index attributes instead of integer ones.

%-100 . . . . !

You can have negative values.