Exemple #1
0
/**
 * @brief Actually handles the shooting, how often the player.p can shoot and such.
 *
 *    @param p Pilot that is shooting.
 *    @param w Pilot's outfit to shoot.
 *    @param time Expected flight time.
 *    @return 0 if nothing was shot and 1 if something was shot.
 */
static int pilot_shootWeapon( Pilot* p, PilotOutfitSlot* w, double time )
{
   Vector2d vp, vv;
   double rate_mod, energy_mod;
   double energy;
   int j;

   /* Make sure weapon has outfit. */
   if (w->outfit == NULL)
      return 0;

   /* Reset beam shut-off if needed. */
   if (outfit_isBeam(w->outfit) && w->outfit->u.bem.min_duration)
      w->stimer = INFINITY;

   /* check to see if weapon is ready */
   if (w->timer > 0.)
      return 0;

   /* Calculate rate modifier. */
   pilot_getRateMod( &rate_mod, &energy_mod, p, w->outfit );

   /* Get weapon mount position. */
   pilot_getMount( p, w, &vp );
   vp.x += p->solid->pos.x;
   vp.y += p->solid->pos.y;

   /* Modify velocity to take into account the rotation. */
   vect_cset( &vv, p->solid->vel.x + vp.x*p->solid->dir_vel,
         p->solid->vel.y + vp.y*p->solid->dir_vel );

   /*
    * regular bolt weapons
    */
   if (outfit_isBolt(w->outfit)) {

      /* enough energy? */
      if (outfit_energy(w->outfit)*energy_mod > p->energy)
         return 0;

      energy      = outfit_energy(w->outfit)*energy_mod;
      p->energy  -= energy;
      pilot_heatAddSlot( p, w );
      weapon_add( w->outfit, w->heat_T, p->solid->dir,
            &vp, &p->solid->vel, p, p->target, time );
   }

   /*
    * Beam weapons.
    */
   else if (outfit_isBeam(w->outfit)) {
      /* Don't fire if the existing beam hasn't been destroyed yet. */
      if (w->u.beamid > 0)
         return 0;

      /* Check if enough energy to last a second. */
      if (outfit_energy(w->outfit)*energy_mod > p->energy)
         return 0;

      /** @todo Handle warmup stage. */
      w->state = PILOT_OUTFIT_ON;
      w->u.beamid = beam_start( w->outfit, p->solid->dir,
            &vp, &p->solid->vel, p, p->target, w );

      w->timer = w->outfit->u.bem.duration;

      return 1; /* Return early due to custom timer logic. */
   }

   /*
    * missile launchers
    *
    * must be a secondary weapon
    */
   else if (outfit_isLauncher(w->outfit)) {

      /* Shooter can't be the target - sanity check for the player.p */
      if ((w->outfit->u.lau.ammo->u.amm.ai != AMMO_AI_DUMB) && (p->id==p->target))
         return 0;

      /* Must have ammo left. */
      if ((w->u.ammo.outfit == NULL) || (w->u.ammo.quantity <= 0))
         return 0;

      /* enough energy? */
      if (outfit_energy(w->u.ammo.outfit)*energy_mod > p->energy)
         return 0;

      energy      = outfit_energy(w->u.ammo.outfit)*energy_mod;
      p->energy  -= energy;
      pilot_heatAddSlot( p, w );
      weapon_add( w->outfit, w->heat_T, p->solid->dir,
            &vp, &p->solid->vel, p, p->target, time );

      w->u.ammo.quantity -= 1; /* we just shot it */
      p->mass_outfit     -= w->u.ammo.outfit->mass;
      p->solid->mass     -= w->u.ammo.outfit->mass;

      pilot_updateMass( p );

      /* If last ammo was shot, update the range */
      if (w->u.ammo.quantity <= 0) {
         for (j=0; j<PILOT_WEAPON_SETS; j++)
            pilot_weapSetUpdateRange( &p->weapon_sets[j] );
      }
   }

   /*
    * Fighter bays.
    */
   else if (outfit_isFighterBay(w->outfit)) {

      /* Must have ammo left. */
      if ((w->u.ammo.outfit == NULL) || (w->u.ammo.quantity <= 0))
         return 0;

      /* Create the escort. */
      escort_create( p, w->u.ammo.outfit->u.fig.ship,
            &vp, &p->solid->vel, p->solid->dir, ESCORT_TYPE_BAY, 1 );

      w->u.ammo.quantity -= 1; /* we just shot it */
      p->mass_outfit     -= w->u.ammo.outfit->mass;
      w->u.ammo.deployed += 1; /* Mark as deployed. */
      pilot_updateMass( p );
   }
   else
      WARN(_("Shooting unknown weapon type: %s"), w->outfit->name);


   /* Reset timer. */
   w->timer += rate_mod * outfit_delay( w->outfit );

   return 1;
}
Exemple #2
0
/**
 * @brief Actually handles the shooting, how often the player.p can shoot and such.
 *
 *    @param p Pilot that is shooting.
 *    @param w Pilot's outfit to shoot.
 *    @return 0 if nothing was shot and 1 if something was shot.
 */
static int pilot_shootWeapon( Pilot* p, PilotOutfitSlot* w )
{
   Vector2d vp, vv;
   double rate_mod, energy_mod;
   double energy;

   /* Make sure weapon has outfit. */
   if (w->outfit == NULL)
      return 0;

   /* check to see if weapon is ready */
   if (w->timer > 0.)
      return 0;

   /* Calculate rate modifier. */
   pilot_getRateMod( &rate_mod, &energy_mod, p, w->outfit );

   /* Get weapon mount position. */
   pilot_getMount( p, w, &vp );
   vp.x += p->solid->pos.x;
   vp.y += p->solid->pos.y;

   /* Modify velocity to take into account the rotation. */
   vect_cset( &vv, p->solid->vel.x + vp.x*p->solid->dir_vel,
         p->solid->vel.y + vp.y*p->solid->dir_vel );

   /*
    * regular bolt weapons
    */
   if (outfit_isBolt(w->outfit)) {

      /* enough energy? */
      if (outfit_energy(w->outfit)*energy_mod > p->energy)
         return 0;

      energy      = outfit_energy(w->outfit)*energy_mod;
      p->energy  -= energy;
      pilot_heatAddSlot( p, w );
      weapon_add( w->outfit, w->heat_T, p->solid->dir,
            &vp, &p->solid->vel, p, p->target );
   }

   /*
    * Beam weapons.
    */
   else if (outfit_isBeam(w->outfit)) {

      /* Check if enough energy to last a second. */
      if (outfit_energy(w->outfit)*energy_mod > p->energy)
         return 0;

      /** @todo Handle warmup stage. */
      w->state = PILOT_OUTFIT_ON;
      w->u.beamid = beam_start( w->outfit, p->solid->dir,
            &vp, &p->solid->vel, p, p->target, w );
   }

   /*
    * missile launchers
    *
    * must be a secondary weapon
    */
   else if (outfit_isLauncher(w->outfit)) {

      /* Shooter can't be the target - sanity check for the player.p */
      if ((w->outfit->u.lau.ammo->u.amm.ai > 0) && (p->id==p->target))
         return 0;

      /* Must have ammo left. */
      if ((w->u.ammo.outfit == NULL) || (w->u.ammo.quantity <= 0))
         return 0;

      /* enough energy? */
      if (outfit_energy(w->u.ammo.outfit)*energy_mod > p->energy)
         return 0;

      energy      = outfit_energy(w->u.ammo.outfit)*energy_mod;
      p->energy  -= energy;
      pilot_heatAddSlot( p, w );
      weapon_add( w->outfit, w->heat_T, p->solid->dir,
            &vp, &p->solid->vel, p, p->target );

      w->u.ammo.quantity -= 1; /* we just shot it */
      p->mass_outfit     -= w->u.ammo.outfit->mass;
      pilot_updateMass( p );
   }

   /*
    * Fighter bays.
    */
   else if (outfit_isFighterBay(w->outfit)) {

      /* Must have ammo left. */
      if ((w->u.ammo.outfit == NULL) || (w->u.ammo.quantity <= 0))
         return 0;

      /* Create the escort. */
      escort_create( p, w->u.ammo.outfit->u.fig.ship,
            &vp, &p->solid->vel, p->solid->dir, ESCORT_TYPE_BAY, 1 );

      w->u.ammo.quantity -= 1; /* we just shot it */
      p->mass_outfit     -= w->u.ammo.outfit->mass;
      w->u.ammo.deployed += 1; /* Mark as deployed. */
      pilot_updateMass( p );
   }
   else
      WARN("Shooting unknown weapon type: %s", w->outfit->name);


   /* Reset timer. */
   w->timer += rate_mod * outfit_delay( w->outfit );

   return 1;
}