gak/gravit — pull request #84 by FrMo (2012-12-04 21:50:06+00:00)
Title: several minor improvements

* font handling: always create RGBA textures
* preparations for fixed physics (issue #12)
* handle acceleration and velocity als separate entities
* use "leapfrog" algorithm to move particles to next timestep (better accuracy)
* lua: forward value of G to spawn scripts
* lua: forward current physics mode to spawn scripts
* lua: new spawn scripts: plummer, clouds, merging-galaxies (some cleanup still needed...)