! 
!          fonctions de base de gestion des bloubs
! 

module bloubspace

  implicit none

  ! ----------------------------------------------------------------

  type t_bloubs
    character(8)         :: nick
    logical              :: alive
    integer              :: num
    real                 :: px, py, pz
    real                 :: vx, vy, vz
    real                 :: radius
    integer              :: seq
  end type t_bloubs

  contains               ! -----------------------------------------

  subroutine random_pv (blb)

    type(t_bloubs), intent (inout)  :: blb

    blb%px = rand() - 0.50
    blb%py = rand() * 0.25
    blb%pz = rand() - 0.50

    blb%vx = (rand() - 0.5) / 4.000
    blb%vy = (rand() - 0.5) / 4.000
    blb%vz = (rand() - 0.5) / 4.000

  end subroutine

  ! ----------------------------------------------------------------

  subroutine move_bloub (blb, coef)
    type(t_bloubs), intent (inout)  :: blb
    real,           intent (in)     :: coef

    ! we must check that this bloub is alive ?

    blb%px  = blb%px + (blb%vx * coef)
    blb%py  = blb%py + (blb%vy * coef)
    blb%pz  = blb%pz + (blb%vz * coef)
    blb%seq = blb%seq + 1

  end subroutine
  ! ----------------------------------------------------------------

end module