Mutually exclusive spawns?

[frederf 0]

I wanted one barrel in a mission to have a PoP (probability of presence of 0.5 and the other barrel only to show up if the other one isn't going to spawn.

How can I do this simply without create unit or destroy unit? If I have one unit initialize with a boolean true variable, it doesn't seem to matter if the unit materializes via PoP or not, the same initialization code is run regardless, so the second barrel with condition !(first_barrel) is never satisfied.

I know this seems like a dumb question, but having "mutually exclusive" spawns is a rather basic premise.

[frederf 0]

Nothing?

[celery 8]

Even though I have a huge brain I can't think of any way other than camcreate or createvehicle. Why isn't creating or deleting possible?

[Big Dawg KS 6]

Name the first barrel (the one with probability of presence at 0.5), then in the condition of presence for the 2nd barrel do this:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">isNull barrel1

[frederf 0]

Nope, doesn't work.

[Big Dawg KS 6]

Nope, doesn't work.

Well that's some helpful information... was the 2nd barrel there every time or not there at all?

[NeZz_DK 1]

first one is set to pop 0.5

the second condition of presence is set to "!alive first" and pop 1

this works for me with a leader and some squad members I just use

alive leader instead for the other units in the squad

[UNN 0]

I think the problem is, when the Barrel with the probability setting is not created, then:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">!first_barrel

Returns an error because the variable\object was never initialised. If that is the case you can try this:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">Call {_T=False; If !IsNull first_barrel Then {_T=True}; !_T}

This will return True, if the first barrel was not created in the misison. In this example, first_barrel has to be the name you give the object in the mission editor.

[NeZz_DK 1]

barrel1

pop 50%

Init: deleteVehicle barrel2;

barrel2

pop 100%

barrel1 does only execute Init if its present and if isnt then

the second barrel is present