Does "Unit Group - Remove" leaks?

[asipo]

I have been wandering some people use

• Custom Script - call DestroyGroup( udg_myUnitGroup )

instead of

• Unit Group - Remove all units from myUnitGroup

That have been made by world editor in GUI

1. Does the Unit Group - Remove leaks?
2. What the difference between them?
3. What is leaks by the way?
4. How to make Custom Script like Custom Script - call DestroyGroup( udg_myUnitGroup )

 

[Weep]

Unit Group - Remove does not leak by itself.

A leak is short for "memory leak", which is what happens if something is stored in memory but never cleared. This happens in Warcraft if you set a variable to a new value without destroying the old value (only for some kinds of variables; you can read more here).

A unit group won't leak if you only add and remove units from it, but if you ever use Set Variable to create a group of units, you will need to destroy that group when you're done using it, before setting it to a value again.

 

[asipo]

Emm.. from the last sentence, what is Set Variable?
Issit a global variable in Trigger Editor -> Variables (Ctrl+B) -> New Variable (Ctrl+N)

 

[GetTriggerUnit-]

It depends

If you always use the same group and full/clean it won't leak.

If you make many array groups, then it will leak.

 

[Weep]

Emm.. from the last sentence, what is Set Variable?

It's when you set a value to a variable. For example:

• Actions
  • Set TempGroup = (Units within 500.00 of TempPoint)
  • -------- do things with the unit group here --------
  • Custom script: call DestroyGroup(udg_TempGroup)

However, you don't need to destroy the group if you only add and remove units from it:

• Actions
  • Unit Group - Add (Last created unit) to TempGroup
  • -------- do things with the unit group here --------
  • Unit Group - Remove all units from TempGroup

 

[Sui-cookie]

and "set variable" is an action....in fact, its one of the first. when you make a new action just look down the default list a few lines ;]

and btw i think its amazing that you know about custom scripts in removing leaks from triggers before you know about setting a variable :thup:

 

[Karawasa]

however, you don't need to destroy the group if you only add and remove units from it:

• actions
  • unit group - add (last created unit) to tempgroup
  • -------- do things with the unit group here --------
  • unit group - remove all units from tempgroup

This is the last thing you want to do, just so you know OP.

 

[asipo]

Ok, now i understand better
But how to make custom script? like

• Custom Script - call DestroyGroup( udg_myUnitGroup )