How can I clear an Ability variable?

[streetpunk]

I could't find how to set it to "no ability", like the unit variables have the "no unit" option. Can anyone point an way to clear ability variables ?

 

[pOke]

There isn't really an ability type of variable, it's just an integer. However, if you want to set it to "No ability" you could use the action custom script and do set udg_abilityName = 0.

Why are you needing to set the ability to nothing though?

 

[IcemanBo]

There actually also exists the ability type, but I'm honestly not very sure if it's useful for a user.

pOke said it it right, what you mean is probably the (integer) AbilityId of an ability, which is commenly used in jass and gui as kind of ability equivalent.

 

[Dr Super Good]

There is no need to set a GUI ability variable to a no value as no matter what value it is set to it will use the same amount of storage space (no leak).

One can use a default value such as 0, or maybe another ability to signify an invalid value. However what value you choose is entirely up to you as long as it is not a valid type reference in the context of use.

 

[Kaijyuu]

IIRC the "no ability" default for globals is 0. You can use a custom script "set udg_ability = 0" to nullify it. If you want to be 100% GUI you could just arbitrarily define an ability to be a "null" ability and just check against that.

Having a default "null" value is quite useful, depending on what you're doing. In my current map I have arrays of abilities that aren't always 100% full of valid abilities, and a null value tells me when I shouldn't actually add an ability to a unit.

An easy example of such a usage is a system where you can equip/unequip abilities; you may have, say, 7 slots per unit for abilities, and an "empty" slot (for when the player has yet to earn/purchase enough abilities, or is in the middle of switching them out) would be set to a null ability in the arrays/hashtables.

 

[streetpunk]

It's complicated, I'll use an action of adding an ability to a unit, and in other trigger, if my condition is met I need to set it to no ability so the first trigger won't add any ability to the unit

 

[pOke]

Sure. It seems as though you could just as easily use something like a boolean or integer and see if is the right value then add/don't add.

But as we've said it is possible to set it "no ability" if that is preferred.

If you want more direct assistance post your trigger(s) and allow us to examine.

 

[streetpunk]

"no ability" is indeed preferred, I'll see if it works, if not I'll come back with the triggers