Counting units inside vehicles

[surpher]

Hi there!  :wave:

New to scripting and just wondering how you would count the number of units inside a vehicle. I intend to use it as a condition for a trigger to make sure that all unit are out of a helicopter before it takes off.


Thx in advance  

[PsyWarrior]

Greetings, Surpher,
And

Welcome to the Forums!

I believe you could use something along the lines of:

Code: [Select]

count (units in chopper) == 0In the 'condition' line of the trigger (with 'chopper' being the name given to the helicopter). The above will trigger if the helicopter is completely empty (including crew). To ensure that the crew remain aboard, use '2' instead of '0'.

The above is completely untested, so no guarantees on it... There may be some syntax problems, so play around with the order of things.

But I believe that the 'Count' command is what you are looking for.

-Supreme Commander PsyWarrior
-Psychic Productions Studios.

[surpher]

Thanks PsyWarrior helped alot  :cheers:

Had some syntax problems but all I had to do was drop the brackets and the in command.

Code: [Select]

count units chopper == 2
Thanks again for putting me on the right track

[Blanco]

Count units chopper == 2?


Is chopper a groupname then?

should be something like :

Code: [Select]

"_x in chopper" count units yourgroupname == 0


[surpher]

chopper is the name of my helicopter.

Im loading two groups into a BAS mh47 piloted by ai. Then they get dropped off and the chopper waits until there are only two units left in chopper (pilot & gunner). Once all unit are out chopper moves on.

It works fine for me

[Blanco]

That's strange , I always thought that count units must be followed by a groupname, not an object...


 

[PsyWarrior]

I always thought that count units must be followed by a groupname, not an object...

Not necessarily, Blanco. I believe that Count Units/ count can be followed by any array of units.

So:
count units group player
Would count all the units in the players group

count units in chopper
Would create an array (in chopper) with all the units in the unit called 'chopper', and then count them [No. It does not]

count [unit1, unit2, unit3, orange]
Assuming you have no unit called orange, would return 3

It can be used with groups, but does not have to be.

-Psy|W

EDIT: The above is now correct, I believe.

[Sui]

hmm.... yeah... sort of

the line:

count units chopper...

will only work if either a group or unit is called 'chopper'. (And it's the right unit/group!)

What you guys are after is:

count (crew chopper)

where chopper is the name of your helicopter.


The units keyword is a device that turns a group into an array. The count command needs to work with an array. So you need to use it like:

count Array

However, the units keyword makes a group an array, so:

count units group

is the same as the previous example.

[PsyWarrior]

Greets, Sui

What of:
count units in chopper

Would that not count all the units inside the chopper? I know that "player in RedJeep" returns true if the player is inside a unit called RedJeep. And would (crew chopper) return crew and cargo, or just crew (pilot/ gunner)?

-Psy|W

[Chris Death]

crew vehicle returns pilot/gunner/passengers in an array

unit in vehicle is either true or false and does not return
an array or unit

count units in vehicle should return nothing or an error

as units in vehicle is not a valid array

unit/group are both seen as a group or a unit
think about that a group can also consist of only one single unit
which gives more sense to that
also think about how the forEach command is used very often:

"_x doAnyThing" forEach units this

which also gives more sense to that

units unit/group is a valid array

~S~ CD

[PsyWarrior]

Ah well...at least I got the Count command right...

I once again submit to your greater knowledge, Chris.

Appropriate corrections have been made.

-Psy|W

[Sui]

Yeah... the nuances are a bit confusing huh?

Chris has covered most of it...

As for the 'units in chopper' thing, you can do it that way. The correct line would look like this:

"_x in chopper" count units group

Which will count how many of one particular group are in the chopper.

Just bear in mind that the keyword units doesn't actually refer to units... it must always be used in conjunction with a group (as it turns the group into an array so count knows what to do with it).

Hopefully I didn't confuse you even more
The whole units/groups/count/foreach thing is a bit of a handful sometimes...

[PsyWarrior]

Right...Got it.

Again, the effects of sleep deprivation become apparent...

Cheers, Sui/ CD. I have clarified my earlier post.

-Psy|W