TestTubeGames Forums

Ah.. I see... Color would be a body object property/field. How about if color stays as body property, however brightness/saturation is a function of the velocity/proximity?

Either based on "attraction" or distance, as one body gets closer to another body, it turns blue (or one hue) the further away it gets from any body it turns red (or another hue). If you combine that with "brightness" or saturation based on the velocity of the body (i.e. the faster a body goes, the ...

oooo. hue dependent on proximity to another body! I could do some pretty cool stuff with that!

No worries... life gets in the way sometimes. I'm just glad you built something that I can play around with. (Imagine that spiral with different colors or velocity-sensitive line brightness/saturation)

60 body Spira Gira...
Gravity Fun at TestTubeGames: [ForceG: -2,Qual: 1,Zoom: 0.2,xSet: 0,ySet: 0],[x0: 0,y0: 0,vx: 0,vy: 0,t0: 0,who: 1,m: 180000], [x0: 1500,y0: 0,vx: 0,vy: -4,t0: 0,who: 2,m: 2], [x0: 1491.78284305,y0: 156.7926949,vx: 0.41811385,vy: -3.97808758,t0: 0,who: 2,m: 2], [x0: 1467 ...

Hey guys, hope all is well. Here's a celtic knot thingy... :)
Gravity Fun at TestTubeGames: [ForceG: -2,Qual: 1,Zoom: 0.15,xSet: 0,ySet: 0],[x0: 0,y0: 0,vx: 0,vy: 0,t0: 0,who: 1,m: 300000], [x0: 600,y0: 0,vx: 0,vy: -9,t0: 0,who: 2,m: 10], [x0: 374.09388112,y0: 469.09888948,vx: 7.03648334,vy: -5 ...

Just my two scents :)...

I would think the direction you would take would have to do with the primary purpose of the simulator. As a game... an engine for creating art and exploring the effects of gravity... I wouldn't think that "hyper" undo (i.e. saving every state of every change) wouldn't be ...

A flower in a circle with 3 orbiting bodies . This was completely trial and error. I'm sure there's a mathematical way of arriving there since it seem that it's not a coincidence that the perigee of the "flower" asteroid's orbit is in-line with a planet and the sun every time.

Gravity Fun at ...

I want to say I did some nasty math -- but it was just a happy accident that I refined to be stable.

I've tried many, many times to make a N-Body orbit work (using Gravity Games as the engine), but they almost always become unstable after about 5 or 6 "cycles". It could be that there are inaccuracies that are introduced from rounding somewhere causing one body to have a slightly higher velocity ...