* application: pause box


git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/ttyvaders/trunk@70 92316355-f0b4-4df1-b90c-862c8a59935f

* lots of sanity checks in collide.c.
  * moved usleep() to graphics.c.
  * added random key generator in the dummy driver.
  * cosmetic changes in the energy bars.


git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/ttyvaders/trunk@64 92316355-f0b4-4df1-b90c-862c8a59935f

* the bomb is now part of the standard fire button effect.
  * overlay for life and special weapon jauges.


git-svn-id: file:///srv/caca.zoy.org/var/lib/svn/ttyvaders/trunk@62 92316355-f0b4-4df1-b90c-862c8a59935f