Function phys_apply_force

physics/physics.cpp:2547–2593

}

void phys_apply_force(object *obj, vector *force_vec, int16_t weapon_index) {
  if (obj->mtype.phys_info.mass == 0.0)
    return;

  if (obj->movement_type != MT_PHYSICS && obj->movement_type != MT_WALKING)
    return;

  if (obj->mtype.phys_info.flags & PF_LOCK_MASK) // Not done!
    return;

  if ((Game_mode & GM_MULTI) &&
      ((obj->type == OBJ_PLAYER && obj->id != Player_num) ||
       ((obj->type != OBJ_PLAYER && obj->type != OBJ_POWERUP) && Netgame.local_role != LR_SERVER)))
    return;

  // Do Force Feedback for the hit
  if (obj->id == Player_num) {
    // we need to convert collision_normal from world space to local space
    vector local_norm;
    float scale = 0, magnitude = 0;

    // compute how much force to do
    magnitude = vm_GetMagnitude(force_vec);
    if (magnitude) {
      scale = magnitude / 2500.0f;
      if (scale < 0.0f)
        scale = 0.0f;
      if (scale > 1.0f)
        scale = 1.0f;

      vm_MatrixMulVector(&local_norm, force_vec, &obj->orient);
      local_norm *= -1.0f;

      ForceEffectsPlay(FORCE_TEST_FORCE, &scale, &local_norm);
    }

    if (weapon_index != -1) {
      mprintf(0, "Force from weapon\n");
    }

    // mprintf(0,"Force: Magnitude = %f   Scale = %1.3f\n",magnitude,scale);
  }
  //------------------------------

  // Add in acceleration due to force
  obj->mtype.phys_info.velocity += (*force_vec / obj->mtype.phys_info.mass);
}

void phys_apply_rot(object *obj, vector *force_vec) {}