for your marble machine, you can just change the collision of the marbles to something other than the magnet, then they won't be attracted, or vice versa.

Fourex wrote:

Versieon wrote:

for your marble machine, you can just change the collision of the marbles to something other than the magnet, then they won't be attracted, or vice versa.

but then they would not stick to the conveyor belt...

onCollide thyme collision group changing. thats how that one (sucky) laser thing i made works

chronos wrote:

Fourex wrote:

Versieon wrote:

for your marble machine, you can just change the collision of the marbles to something other than the magnet, then they won't be attracted, or vice versa.

but then they would not stick to the conveyor belt...

onCollide thyme collision group changing. thats how that one (sucky) laser thing i made works

i don't know how to use thyme. and even if i did i wouldn't use your suggestion because i like to figure out a problem using only the physics of phun, not scripting anything. its cheating.

Last edited by Fourex (2009-05-30 16:05:39)

this idea will probably be implemented, but with the release of beta 5, this was just a new tool.  It's not fully developed yet, emil was probably just putting it in to see how well it would work, and then with the next update, seeing how well everyone liked it, he'll probalby add more options to it.  the same goes for the "orbit" option.

Conundrumer wrote:

The mass of the object determines the attraction strength. The attraction slider determines how far reaching the attraction is.

both mass and attraction slider change only the attraction forcs, linear and quatradig or what it was somehow change how attraction grows while coming closer.

lollerman wrote:

like real magnets wont pull a nail to it from distance of 10 meters but if its 5 mm from it, you almost cant pull it off the magmet.

some kinds of magnets can(LHC ripoff)

This has been suggested at least 4 times and it never gonna happen. It is completely against laws of physics because attraction affect things to an infinite distance. The force is allways acting but it is regressing by the square of the distance (quadratic falloff). You have to know the difference between attraction and magnetism. Attraction is caused by mass, like the attraction of the Earth (gravity) and magnetism...magnet. The forces of a magnet , they regress by cubic of the distance. But in phun, for now, we can't put cubic regression On, and I Hope it will in next beta: then it would behave more like magnet.       

In conclusion, we need cubic regression, not a distance slider.

Last edited by Antotabo (2009-06-01 00:21:07)

well, air-friction motors also go against physics, same with zero-friction mechanisms, but we use those. personally, i think a small radius, high intensity magnetic field would be of incredible use for anything ranging from a floating platform to a guns magazine holder, or firing mechanism. new stabilizers could be built, whole new concepts for thrust systems would become possible, even simulating limited gravity for people who make space ships.

To chefsbrian:  Read a second time and think. Cubic regression would absolutely create the phenomena you describe; limited distance. Example:
   
   100.0 lb = 1 inch
     12.5 lb = 2 inch
       3.7 lb = 3 inch   
        0.8 lb = 4 inch

This is the way it should be.

Last edited by Antotabo (2009-06-01 22:52:36)

for the coding part, the only thing Emilk have to do for cubic regression is to replace a 2 by a 3 in is current quadratic simulation.