${If[,,]} evaluating all possible cases?

[gimp]

Code: Select all

${If[${Me.Gem[2].ID},${Math.Calc[${Me.CurrentMana}/${Me.Gem[2].Mana}]},]}

Hello. I am attempting to add a counter to my UI that shows "current memmed spell can be cast another X times before you are out of mana".

The above code does just this. But if a spell is not memorized, ${Me.Gem[2].ID} is NULL, but the ${Math.Calc[] code still gets executed, and results in a division by zero error.
Is this the intended behaviour, or am I mis-using ${If[,,]} ?

[gimp]

here is a work around:

Code: Select all

${If[${Me.Gem[2].ID},${Math.Calc[${Me.CurrentMana}/(${Me.Gem[2].Mana}+0.01)]},]}

but im still curious about the original problem

[Lord_Vyper]

If isn't the problem here...

edit: to clarify a bit further, I don't believe if checks if a variable is present before it processes it. So on one hand yes, it's if's problem. On the other hand, you could always nest Ifs to check if a variable is set before you try to mess with it.

[Lax]

It has nothing to do with If, it has to do with MQ2Data. All data sequences are processed from the inside to the outside, regardless of anything else in the statement. The only time it's different is when specific commands (no top-level objects such as If) prevent processing of data sequences.

This is intended behavior.

[gimp]

Ok, thank you for clarifying Lax