while loop

[CopyrightPhilly]

Hey,

OK i'm using the following code to eject the units in the cargo of the chopper

Code: [Select]

;-------------------------------------------------
; Make all the units in the cargo jump one by one
;-------------------------------------------------
~3

_chopper = _this select 0
_height = _this select 1
_chopper_height = getpos _chopper select 2

_chopper flyinheight _height

_pilot= driver _chopper
_gunner = gunner _chopper
_cargo = (crew _chopper) - [_pilot, _gunner]

_loops = count _cargo
_counter = 0

while "_loops > _counter" do {
_unit = _cargo select _counter
_unit action ["eject", _chopper]
_counter = _counter + 1
~1
}

_chopper flyinheight _chopper_height
exit
now the problem i'm haiving is that i get an error at the end of the while...

the error is:

'|#|}'; Error Invalid number in expression

btw, this is the first time i have needed to use the while command so its problery the format that is wrong...

cheers,
Phil

[456820]

this should be riht thats if i understood the question wich i think i did where it says

while "_loops > _counter" do {

change it to

# while
_loops > _counter" do {

that should work i think its because to define a name in a script there has to be a "#" in front of it

[CopyrightPhilly]

thanks for the reply 456820 but,

i'm still getting the same error when using:

Code: [Select]

# while
"_loops > _counter" do {
_unit = _cargo select _counter
_unit action ["eject", _chopper]
_counter = _counter + 1
~1
}

[Pilot]

Hey CopyrightPhilly,

I think you need to seperate your commands.  I think (not too sure, though) you can do this with an and:

while "_loops > _counter" do {_unit = _cargo select _counter and _unit action ["eject", _chopper] and _counter = _counter + 1 and ~1}

or you may have to use a comma:
while "_loops > _counter" do {_unit = _cargo select _counter, _unit action ["eject", _chopper], _counter = _counter + 1, ~1}

Just a suggestion, I may be totally wrong, I have never used the while do command before

-Student Pilot

[UNN]

Can you use while loops in a script or is it just functions? Well either way you would probably need semi-colons and the end of each command line.

But could do it this way, at least I know for sure that will work:

Code: [Select]

_counter=0
_cargo=+_cargo
_count=count _cargo

#Loop
(_cargo select _counter) action ["eject",_chopper]
_counter = _counter + 1
~1
If (_counter<_count) Then {goto "Loop"}
I don't think you can use ~ in between curly brakets, because the brakets make it a function.

[THobson]

Can you use while loops in a script or is it just functions

Yes you can use them in scripts but when you do you should separate each instruction with a semi-colon (not a new line) and since you can only use a tilda (~) to denote a delay if you put it at the start of a line you cannot put a delay in the list of instructions executed by a while statement.  AFIK

[Pilot]

Commands are seperated by a semi-colon?!  I thought any text after a semicolon was considered to be a note and not used during the processing of the script.

[Baddo]

The while...do loop has to be on a single line when used in a script. In a function you could spread it to multiple lines.

But the delay causes an error if you put it into the while...do block even if it is on a single line. Because you obviously want a delay to your script, you have to use some other method.

You could use something like this:

Code: [Select]

;-------------------------------------------------
; Make all the units in the cargo jump one by one
;-------------------------------------------------
~3

_chopper = _this select 0
_height = _this select 1
_chopper_height = getpos _chopper select 2

_chopper flyinheight _height

_pilot= driver _chopper
_gunner = gunner _chopper
_cargo = (crew _chopper) - [_pilot, _gunner]

_k = count _cargo
_i = 0

#Loop

_j = _cargo select _i
_j action [{EJECT}, _chopper]
unassignvehicle _j

~1

_i = _i + 1

? (_i == _k) : exit
goto "Loop"

_chopper flyinheight _chopper_height
Note that you have to use the unassignvehicle command because otherwise those AI's will try to get back into the chopper if they were assigned as cargo.

And a semicolon marks a comment only when used as the first character in a line.

[CopyrightPhilly]

thanks chaps,

i ended up using the following:

Code: [Select]

#loop
?_loops <= _counter : goto "end"
_unit = _cargo select _counter
_unit action ["eject", _chopper]
unassignVehicle _unit
_counter = _counter + 1
~0.3
_unit setdammage 0
goto "loop"and it worked fine

thanks again,
Phil