TestTubeGames Forums

https://i.ibb.co/xDJmcsM/Screenshot-2022-05-16-174145.png

//Gravity fun at TestTubeGames
_settings(gravity: r^-2, n: 2 trapped particles);
_type0(m: -1, col: 3, pic: 1);

_type1(m: -1, col: 2, pic: 2);

_add(type: 0, x: -10, y: 190 ,vx:5, t: 0);
_add(type: 1, x: -10, y: 190 ,vx:2, t: 50 ...

I tried to simulate a collision between two bodies with nograv options. I thought I would get an elastic collision result, but it seems that the collision is not perfectly elastic!

//Gravity fun at TestTubeGames
_settings(gravity: 0.000001*r^(-2));
_add(m: 1, col: 4, lcol: 4, pic: 1, x: -200, y: 0 ...

Hi,
Assume I want to write the code of a more realistic solar system, how to code the angular velocity of the sun, earth, or any planet rotating around its own axis?
Thanks

@ couples of binary stars that revolve around each other and all revolve around big mass making a very beautiful stable art piece

https://i.imgur.com/Ns7yBtv.png




//Gravity fun at TestTubeGames
_settings(gravity: r^-2+0.5*r, zoom: 1.09, n: 5 suns controlled by spring action);
_type1(m: 10 ...

Many Thanks for the useful answer

https://image.ibb.co/eDObNH/12_negative_masses_confined_in_negative_mass_rings.png

//Gravity fun at TestTubeGames

_settings(gravity: r^-2, n:12 negative masses confined in negative mass rings;
_add(m: -100, d: 10, col: 1, lcol: 2, pic: 1, x: -20, y: 150, vx=0, vy=0, t: 0);
_add(m: -100, d: 10 ...

When I start GR I have to load the code first then to switch on the GR option from setup. I am asking how to start directly with GR (and light speed value) such that it is already included in the code?

Oh my, negative masses!
I would've loved to take a look at that kind of stuff... but...

When I tried to use your code and it doesn't work. D:
This is mostly because there's some unnecessary line breaks and its lacking the "Gravity Fun at TestTubeGames.com:"

Also, you really should've used the ...

ahmedkq 8 high -ve mass suns , 4 -ve mass bodies: [ForceG: -2,Qual: 1,Zoom: 1,xSet: 0,ySet: 0], [x0: 100,y0:0,vx: -8,vy: 0,t0: 0,who: 2,m: -1000], [x0: -100,y0:0,vx: 8,vy: 0,t0: 0,who: 2,m: -1000], [x0: 0,y0:100,vx: 0,vy: -8,t0: 0,who: 2,m: -1000], [x0: 0,y0:-100,vx: 0,vy: 8,t0: 0,who: 2,m: -1000 ...