bullet-wall collision and fire rate fix
Destroy walls
Save curr work
Destroying parted walls
Destroying walls conditions
Curr work
finish destroying wall
Small fix
collision by modulo
merged "Destroying walls" PR
Fixed destroy walls and explosion offset
comments added
Correcting explosion offset at runtime
cache checking collision
Small upd
game over message
Improve destroying of parts of a walls
Change explosion coordinates
Merge branch 'feature-fix-collisions' of github.com:Mutuh/stfalcon.github.com into feature-game-over

* 'feature-fix-collisions' of github.com:Mutuh/stfalcon.github.com:
  Change explosion coordinates
  Improve destroying of parts of a walls
  Small upd
  cache checking collision
  Correcting explosion offset at runtime
Game over