Algodoo

This is a little thing I've been making over the past few days, and I can tell you that it is very reliant on scripts. Anyhow, when particles collide, they merge, including all data they hold. This basically shows that even without gravity, accretion alone can form planets. To conserve CPU, planets don't have gravity until they get big enough, so you won't have 1k+ particles all attracting each other.

There are a few tweaks I need to make, yet. I need to polish up the merging of particle positions, velocities, and perhaps radius

Hope you like it!