Optional parameters in UDF

[xavram]

Is there a way to set up the macro so that some of the incoming arguments are optional?

IE, "SetDamage" takes a targetId, damage value, and "isCrit"....but in some scenarios, "isCrit" wouldn't be passed in and should (in those circumstances) default to false.

Right now, if I put 3 paramters in a UDF macro and I try to call it with only 2, I get an error saying, "3 parameters expected".

Is there a way to set this up?

[wolph42]

use if (argcount()==3):x=arg(2) etc.

[xavram]

Oh, excellent...thanks Wolph!

[wolph42]

you're welcome

[aliasmask]

Maybe it's just a programming style, but I use >= rather than ==. But it depends on how you write the statement.

Code: Select all

[h, if(argCount() >= 1): first = arg(0); first = "default"]
[h, if(argCount() >= 2): second = arg(1); second = "default"]
[h, if(argCount() >= 3): third = arg(2); third = "default"]

if you use argCount()==3 then everything would be set to default except the 3rd argument. Just something to be aware of.

[wolph42]

no thats actually the correct approach!

[Full Bleed]

Code: Select all

[h, if(argCount() >= 1): first = arg(0); first = "default"]
[h, if(argCount() >= 2): second = arg(1); second = "default"]
[h, if(argCount() >= 3): third = arg(2); third = "default"]

This looks like WIKI relevant material.