[Scripting Question] What does "x ? y: z" inside the script do?

[Seenit45]

I'm trying to do some changes to my script, but I ran into a code that has "x ? y: z" in it and I don't know what it means. Can someone please help me out?

Example:

def pbRaiseHappinessAndLowerEV(pokemon,scene,ev,messages)
  h=(pokemon.happiness<255)
  e=(pokemon.ev[ev]>0)
  if !h && !e
    scene.pbDisplay(_INTL("It won't have any effect."))
    return false
  end
  if h
    pokemon.changeHappiness("evberry")
  end
  if e
    pokemon.ev[ev]-=10
    pokemon.ev[ev]=0 if pokemon.ev[ev]<0
    pokemon.calcStats
  end
  scene.pbRefresh
  scene.pbDisplay(messages[2-(h ? 0 : 1)-(e ? 0 : 2)])
  return true
end

 

[Pokeminer20]

when you see that format it returns either 'y' or 'z' depending on what 'x' is equal to. for example in the pbDisplay(message) above, if 'e' or 'h' is equal to 'a value' due to how they are defined at the top, it will return 'z' and if it is 'nil' it will return 'y'
which is why we see 'if !h && !e'

 

[Seenit45]

when you see that format it returns either 'y' or 'z' depending on what 'x' is equal to. for example in the pbDisplay(message) above, if 'e' or 'h' is equal to 'a value' due to how they are defined at the top, it will return 'z' and if it is 'nil' it will return 'y'
which is why we see 'if !h && !e'

I understand. Thanks a lot!