how to get position of zone?

[Stonehouse]

Given the name of a trigger zone how do you get the position?

 

If my variable _aaaZone contains the name of the zone then is it:

 

local _zonepos = {x=_aaaZone.point.x, y=_aaaZone.point.y, z=_aaaZone.point.z}

 

?

 

Passing this and the targets current position to get3DDist fails with the error that I'm trying to an arithmetic operation on a nil value in x.

 

Code snippet below:

 

local _zonepos = {x=_aaaZone.point.x, y=_aaaZone.point.y, z=_aaaZone.point.z}

local _curpos = {x=_targetpos.x, y=_targetpos.y, z=_targetpos.z}

local _range = mist.utils.get3DDist(_curpos, _zonepos)

 

What's my dumb mistake please someone as I can't see it for the life of me. (With a bit of hindsight now I think I probably don't need _curpos and could probably just pass _targetpos which has been populated with inZoneUnits:getPosition().p)

 

Thanks,

Stonehouse

[chromium]

I might be wrong, but If I remember correctly zones has a Vec2 coordinate system in use.

 

So, maybe, it could be:

 

local _zonepos = {x=_aaaZone.pos.x, y= 0, z=_aaaZone.pos.y}

 

if you need the point on the ground you may use land.getHeight function passing the same x and y variable of the zone.

 

Sorry if I'm wrong, can't check before a couple of days...

[xcom]

Found this by searching in this forum -

 

function SignalTarget()
   Aimpoint = trigger.misc.getZone(target2)
   Aimpointpos = {}
   Aimpointposx = Aimpoint.point.x 
   Aimpointposz = Aimpoint.point.z
   Aimpointposy = land.getHeight({x = Aimpoint.point.x, y = Aimpoint.point.z})
   Aimpt3 = {x=Aimpointposx, y=Aimpointposy, z=Aimpointposz}
   trigger.action.smoke({x=Aimpointposx, y=Aimpointposy, z=Aimpointposz}, trigger.smokeColor.Red, 0)
   return timer.getTime() + 5
end

 

Code by SNAFU.

[Stonehouse]

Thanks all, must be tired missing that zones are vec2 not vec3. Off to give it another go.

 

Cheers,

Stoney

[chromium]

...must be tired missing that zones are vec2 not vec3...

 

Not sure: Xcom posted a code that refers to a vec3, and use point instead of pos. I can check this evening if you need.

[Stonehouse]

Thanks Chromium, but it is vec 2 with land height giving the 3rd dimension and point appears to work ok. Anyway getting past that section of code now with people's help from this thread and getting stuck on some table issues lol.

[chromium]

Lua scripting for us newbie or not programmers is a mined field almost. But when you start to sede results... It's really fantastic