Method DoStingAttack

scripts/AIGame3.cpp:6336–6393

Checks to see if tractor beam pulling can commence/continue

// Checks to see if tractor beam pulling can commence/continue
bool AlienBoss::DoStingAttack(int me) {
  matrix orient;
  vector vec_to_target;
  int target_handle;
  float fov_angle;

  // Make sure we still have a target
  AI_Value(me, VF_GET, AIV_I_TARGET_HANDLE, &target_handle);
  if (target_handle == OBJECT_HANDLE_NONE)
    return false;

  // check distance to target
  float dist;
  AI_Value(me, VF_GET, AIV_F_DIST_TO_TARGET, &dist);
  if (dist > AB_MAX_STING_DIST)
    return false;

  // check FOV position of target (greater than 45 degrees is too much)
  Obj_Value(me, VF_GET, OBJV_M_ORIENT, &orient);

  // NOTE: do my own vec to target here! (chris' doesn't update quick enough)
  AI_Value(me, VF_GET, AIV_V_VEC_TO_TARGET, &vec_to_target);
  vm_VectorNormalize(&vec_to_target);
  fov_angle = orient.fvec * vec_to_target;
  if (fov_angle < 0.7f)
    return false;

  // see if anything is in the way
  ray_info ray;
  int flags, fate;
  vector start_pos, end_pos, landing_pos;
  int start_room, landing_room;
  float target_size;

  Obj_Value(me, VF_GET, OBJV_V_POS, &start_pos);
  Obj_Value(me, VF_GET, OBJV_I_ROOMNUM, &start_room);
  Obj_Value(target_handle, VF_GET, OBJV_V_POS, &end_pos);
  Obj_Value(target_handle, VF_GET, OBJV_F_SIZE, &target_size);

  flags = FQ_CHECK_OBJS | FQ_IGNORE_POWERUPS | FQ_IGNORE_WEAPONS | FQ_IGNORE_MOVING_OBJECTS |
          FQ_IGNORE_NON_LIGHTMAP_OBJECTS;
  fate = FVI_RayCast(me, &start_pos, &end_pos, start_room, target_size, flags, &ray);
  if (fate != HIT_NONE)
    return false;

  // Create the lightning effect for the sting attack
  aLightningCreate(target_handle, memory->tail_pos_handle, 0.4f, 1.0f, 3, transfer_effect_id, 0.4f, 1, 255, 255, 255,
                   false);

  // Damage the target
  aObjApplyDamage(target_handle, AB_STING_DAMAGE);

  // Play damaged sound for target

  mprintf(0, "Did sting attack.\n");

  return true;
}