How can I randomly choose two precise numbers?

Simple Gamer Arts

I want to randomly choose just these two numbers: -100 and 100 (not -99 or 56). Any ideas?

tatiang

Create two integer attributes called game.whichOne and game.randomNumber

[repeat with a loop, Timer, rule condition, etc.]
     Change attribute game.whichOne to 0
     Change attribute game.whichOne to random(1,2)
     When attribute game.whichOne = 1
          Change attribute game.randomNumber to -100
     When attribute game.whichOne = 2
          Change attribute game.randomNumber to 100

Simple Gamer Arts

Thanks a lot @tatiang that works fine!

tatiang

Or a simpler way:

Change attribute game.randomNumber to (random(0,1) * 2 - 1) * 100

Simple Gamer Arts

Change attribute game.randomNumber to (random(0,1) * 2 - 1) * 100

This was genius, thanks!!! @tatiang

tatiang

You're welcome!

Wish I could take credit. I Googled Lua random negative one or one since GameSalad is build in Lua. The first result was this:

https://forums.coronalabs.com/topic/35410-tip-randomly-return-1-or-1/