detect unit in a area and do something to it

[Mt5_Roie]

So I want to set a zone around an airbase that is used for training to keep the trainees safe. I have enemy aircraft not too far from the airbase so people can practice air to air skills. Sometimes these enemies follow the students back to the airbase. Sure I could out a lot of air defenses in, but want to keep things simple. So is there a method of saying if any object of a certain type (country or coalition) enters this zone to destroy them? Bonus points if we can make a huge explosion on them as well.

 

Now the enemy fighters come in packs of 4, but sometimes one or two get close...so I don't want to destroy the whole group, just the unit that are violating the airspace.

[baltic_dragon]

Sure. Use simple trigger:

"Switched condition" -> part of coalition in zone (or part of group / unit) -> explode unit (choose unit and explosion volume). To be on the safe side and to make it work best, I would set up a trigger for each enemy unit which may enter the zone, in which case use once -> unit in zone -> explode unit.

[Mt5_Roie]

So I would have to do it for each unit, since if I do it by group I wouldn't really know which unit in that group to explode...or does the ME automatically assume it's the unit that is in the zone?

[baltic_dragon]

Unfortunately, to be 100% sure you'd need to do it by unit.

Or use a script, I am sure there is one good just for that, but somebody else would have to help you with that.

[Wrecking Crew]

Here are a few examples of the way I use Mist to detect units in zones.

 

mist.flagFunc.units_in_zones{ 
units = {'[blue][plane]'}, 
zones = {'Test Zone'}, 
flag = 50107, 
zone_type = 'cylinder', 
}

mist.flagFunc.units_in_zones{ 
   units = {'[blue][plane]'}, 
   zones = {'Test Zone'}, 
   flag = 50207, 
   zone_type = 'sphere',
   toggle = true,	
}



mist.flagFunc.units_in_zones{
units = {'[blue][vehicle]'},
zones = {'Point Bastion'},
flag = 99,
req_num = 8,
stopflag = 1000,
   toggle = true,
}

mist.flagFunc.units_in_zones{ 
   units = {'[red][plane]'}, 
   zones = {'Ready to Attack Ground Units'}, 
   flag = 10007, 
   zone_type = 'cylinder',
   stopflag = 10004,
   toggle = true, 
}

 

Link to Mist, from Grimes --

http://forums.eagle.ru/showpost.php?p=1622305&postcount=3

 

Look in the Mist guide, around Page 15 for this units in zone function description.

 

WC

[Mt5_Roie]

Thanks Wrecking Crew...will give it a read.

[St3v3f]

Add Mist to your mission and create a one-time DO SCRIPT trigger:

 

local groups = mist.makeUnitTable({'[red]'})
local safezones = {'Safezone'}

deactivateUnitsInSafezone = function(groups, safezones)
for i, unit in pairs (mist.getUnitsInZones(groups, safezones, 'cylinder')) do
	trigger.action.deactivateUnitsInSafezoneGroup(unit)
end
mist.scheduleFunction(deactivateUnitsInSafezone, {groups, safezones}, timer.getTime() + 1)
end

deactivateUnitsInSafezone(groups, safezones)