question

Here's a user command and example model where you can call faceObject and it will figure out the rotation and apply it to the te (or any object you supply as the first parameter). Also attached is a library to autoinstall the command to any model.

The user command code is:

/**Custom Code*/
Object te=param(1);
Object involved=param(2);
Variant p3=param(3);
Vec3 midbaseFactors=Vec3(0.5,0.5,0);
Vec3 factors=midbaseFactors;
Vec3 unitx=Vec3(1,0,0);
if (p3.type==VAR_TYPE_ARRAY)
    factors=p3;
Vec3 targetloc=involved.getLocation(factors).project(involved.up,te.up);
Vec3 tepos=te.getLocation(midbaseFactors);
targetloc.z=0;
tepos.z=0;
Vec3 heading=targetloc-tepos;
double angle=heading.angle(unitx);
te.rotation.z=angle;
return angle;

faceObject.fsmfaceObject.fsl

Attached is your updated model.

model-op-walks-to-centeral-loc_jl.fsmfaceObject.fsm