finding direction vector - Macromedia Director 3D

[xeroe]

hi everyone

I want to know if anyone knows how to figure out what the direction vector
from one model to another is, like I want to shoot a missile from a ship
towards a helicopter, but the only way I can think of to do it is to get
something to pointAt the helicopter an then use the models transform.axis to do
a modelunderRay to figure out whether or not to fire a missile, but what I want
to know is are there any ways to skip the extra model pointAt thing and find
what direction to put into the modelUnderRay function.

thanks

James

[xeroe]

hi everyone

I want to know if anyone knows how to figure out what the direction vector
from one model to another is, like I want to shoot a missile from a ship
towards a helicopter, but the only way I can think of to do it is to get
something to pointAt the helicopter an then use the models transform.axis to do
a modelunderRay to figure out whether or not to fire a missile, but what I want
to know is are there any ways to skip the extra model pointAt thing and find
what direction to put into the modelUnderRay function.

thanks

James

[xeroe]

uhh, in case youre wondering, I didnt mean to post this more than once- I dont quite know how it happened- hope the mods take off the other posts

James

[Richard]

Hi there,

If I understand correctly, you need to obtain a result vector by deducting
the worldPosition of the ship from the worldPosition of the helicopter (or
vice versa), then perform a .normalize() on the resulting vector. That is
your direction to send the missile in. Although if it's a guided missile
you'll need to constantly update the missiles path.

Cheers

Rix