Algodoo

press A
-I used spawner script
-to change distance change the density of the spawned circle
-script is in the "fuel" (marked in red)
-portable (but innacurate when in motion)
-accurate to a 2x2 m area
-center of gravity of the object must me inside the launch area
-the bulk of the weight must collide with collide set B and be within launch area
-may cause glitchyness with objects with fixjoints
-the following factors affect distance
1)weight of the target object
2)the sim frequency (the higher it is, the less effective it is)
3) movement (the distance may vary up to 30m)
-increase the launch area size by increasing the radius of the spawned circle
-No, this is not a glitch, I wanted to know what would happen if you have two objects with negative attraction spawn within eachother. This is the result.
have fun, reverse engineer it if you want.