Link Object with inner movement

I need some help getting started (as usual). I have a seed pod (mulitple prims) which rezzes a seed internally:

Question 1: after the seed is rezzed how do I link all parts together so is the pod is moved the seed remains inside?

Question 2: would it be possible (if the seed is linked) to impart some motion to the seed using, I guess, llSetPos

Thanks for the help

if you make the seed physical and move the pod slowly it should stay inside (not really recommended it's a lot of physics processing), or you can use llCreateLink

Yes, I would like to avoid a physical object, I haven't used CreateLink but can the internal object be move once it is linked?

yes, either with llSetLinkPos or llSetLinkPrimitiveParams, from the a main object, or the non-link versions from the linked in object... it's treated the same as any other child prim(s).

if you're curious as to what the link number(s) will be for the new object, the linked in object gets inserted into the chain right after the root.

eg
object X = ABC
object Y = def

object Z = (X creates a link with Y) AdefBC

links start at zero for the firs and go up from there.

So far so good: I used the Wiki example for llCreateLink and it works well with single prim items. If the inserted object is made of multiple prims (linked) only the prim with the script moves. I used a simple rotation rotation to experiment with. Am I restricted to simple prims with this method? Below is the Wiki script:

// Create a new object and link it as a child prim.
string ObjectName = "Object Name Here";
// NOTE: must be a name of an object in this object's inventory.

default
{
touch_start(integer count)
{
// When the object is touched, make sure we can do this before trying.
llRequestPermissions(llGetOwner(), PERMISSION_CHANGE_LINKS);
}
run_time_permissions(integer perm)
{
// Only bother rezzing the object if will be able to link it.
if (perm & PERMISSION_CHANGE_LINKS)
llRezObject(ObjectName, llGetPos() + <0,0,0.5>, ZERO_VECTOR, llGetRot(), 0);
else
llOwnerSay("Sorry, we can't link.";
}
object_rez(key id)
{
// NOTE: under some conditions, this could fail to work.
// This is the parent object. Create a link to the newly-created child.
llCreateLink(id, TRUE);
}
}

You have to move every prim separately, yes.

Okay, thanks for the help. Seems that linking always messes up my creations when movement is concerned.

yes, the unfortunate side effect of linking means that all the newly linked in prims are now individual child prims. there is no hierarchical linking in SL (yet).

Oh but there was... joints. They never worked LOL.

I remember... I even remember trying to make them work... it wasn't pretty.

but I don't count it as a was since it didn't work... same way I wouldn't count a bunch of springs under a car seat ans an ejection seat if it didn't work... it's just a bunch of wasted springs (like a few other thing in SL)