Unit Group Arrays?

[Spellbound]

Are arrayed Unit Groups bugged? I can't seem to be able to retrieve any units logged inside a unit group array. Getting rid of the array without touching anything else in the trigger makes it work properly, but it's not MUI anymore.

Could someone shed some light?

 

[IcemanBo]

Array goes to from 0 to 8191, and if you tick array it does not create automatically 8192 unit groups at game start.
It does only create for index 0 and index 1. So MyGroup[0] and MyGroup[1] should work correctly be default.
You can increase the amount of created groups in the variable editor to a higher number, to 5 for example.
You also can create it with custom script, which allows you more control over it.
For example:

• Custom script: set udg_MyGroup[5] = CreateGroup()

Now MyGroup[5] does exist and you can use it.

To check if a group does already exist or not you can compare it with "null", for example:

• Custom script: if udg_MyGroup[5] == null then
• Custom script: set udg_MyGroup[5] = CreateGroup()
• Custom script: endif

So now we would only create the group for index 5 if it does not exist yet.

 

[Spellbound]

Oh... so all I had to do was change the value to 8191 in the variables creator? Are there other variables like that that need their values changed or can I leave the rest at 1 and it'll work properly?

 

[IcemanBo]

Yes, all except primitive types I think. (boolean, real, integer, code)

 

[Spellbound]

Oh, one last question - is it better to create a group when I need one or setting the value to 8191 works just as well (performance-wise)?

 

[Zwiebelchen]

Setting the value to 8191 will most likely make your initialization function hit the OP limit. Always initialize object instances only when you need them.

 

[Spellbound]

Right, will do then. Thanks