ADD_SOURCE_FILES(WEAPONS_SRC_FILES
  BasicProjectile.cc
  BillboardProjectile.cc
  ParticleProjectile.cc
  Projectile.cc
  LightningGunProjectile.cc
  SplitGunProjectile.cc
  IceGunProjectile.cc
  Rocket.cc
  RocketOld.cc
  SimpleRocket.cc
  GravityBomb.cc
  GravityBombField.cc
)