Hi, i've seen a couple of people asking how to rotate one entity around another one using code. I was just browsing and saw someone wanted to build a solar-system simulator or similar, but couldn't figure out how to do the rotation.

I've just built this in the last 15 mins...

> Allows you to rotate planets/satellites/etc around other objects.

> All done through 1 function, saving code space.

> Allows you to specify orbit radius, orbit speed, pan/roll/tilt speeds, line of latitude.

> Supports circular and elliptical orbits.

> Can be used for other things, not just planets, that require rotation around a point or entity.

I've tried to explain inside the planet_orbit.c file as much as i could.

Hope it is useful to someone, if not it's more practise coding for me, lol.

Finally here is the download link >>>

http://www.djbm.kawanda.net/public_files/planetorbit.zip

BTW > would work really well with the planet shader i've seen floating about. Should be in an AUM somewhere.

Thanks...DJB MASTER...

Excellent contribution, I've noticed the same thing but never thought of a contribution. Great job with helping out the community

EDIT: URL is incorrect, looks like you missed part of the link

Thanks Trooper119, i forgot that having spaces in URLs isnt the best idea. It's fixed now, thanks.

Wow ... thats just what I was looking for, many thanks ... a great piece of code. While I have you here would you car to give me a snippet on ENTITY SCANNING?? How do I get one ENTITY to know its close to another ENTITY.

vec_dist(my.x,your.x) quickest way if you're just checking how far something

c_trace(my.x,your.x,IGNORE_ME); for seeing if they can see each other

c_scan(my.x,my.pan,vector(120,0,200),SCAN_ENTS); best used on button presses, returns closest entity =D

Hope this helps!

Is this still available to download somewhere?

Planet orbit system by DJBMASTER at Gamestudio Wiki (code / text only)

Oh yeah, sry i was cleaning out my webspace and deleted it, but thanks to whoever put it on the wiki. Great job!

would have liked to toy around with it with the original files. I guess it won't be difficult to whip up a star and a couple of planets to test it with. This might come in handy for a video game i'm thinking of producing.