The game now computes "keyframes", those are the number of reference frames...

The game now computes "keyframes", those are the number of reference frames displayed. Simply this means that particles effects and such that are dependant on being called 30 times per seconds now work independantly from actual FPS.
Game:display() now receives a "nb_keyframes" parameter, it should be passed to to the map an other such things (see the example module, it is easy to update, although technically not needed)
Requested FPS can be changed in the video options


git-svn-id: http://svn.net-core.org/repos/t-engine4@2007 51575b47-30f0-44d4-a5cc-537603b46e54