Shooting a rocket model

Engines, Libraries and Tools Xith3D Forums
#1

Hi,

I am using a mouse-look style camera and movement system. I am using 2 vectors; one for my current location and for the direction that i’m facing. I can fire rockets (which are spheres at the moment) in whatever direction I’m facing.

The problem is I would like to fire an MD2 model of a rocket instead of the sphere. I can fire the model and it travels in whatever direction I shoot it, but I can’t seem to figure out how to make the front of the rocket model always point forward. The rocket is pointing out into the negative z direction, so if i turn around and shoot, the rocket will fire sidewards or with the front pointing towards me (ie backwards!).

How can i solve this problem (ie the front end of the rocket should point in whatever direction i’m firing), my 3D maths aint that great!

#2

you could rotate your rocket to match your camera. or use a lookAt of the rockets transform3d.

if u want to lock onto an object then fire your rocket and it swings around in space to the target u locked. lookAt is good for this. then mess around with interpolation.

so the target is point 0, another node thats half way between your target and the rocket location with a random offset is point 1, and the rocket is point 2. now get the rocket to always togo point 1. and get point 1 to goto point 2. and u have a nice swinging rocket in space. add abit of juggle to point 1 and some springing. and u have the working of something thats working great! :slight_smile:

goo luck- im doing rockets next.

#3

Cool…

Thanks for the advice I’ll give it a go…