Function DrawWeaponStreamer

Descent3/WeaponFire.cpp:2423–2463

Draws a streamer behind a weapon

// Draws a streamer behind a weapon
void DrawWeaponStreamer(object *obj) {
  float time_live = Gametime - obj->creation_time;
  float len;
  float norm_time = time_live / obj->lifetime;

  if (norm_time >= 1)
    norm_time = .99999f; // don't go over!

  // Get length
  object *parent_obj = ObjGet(obj->parent_handle);

  if (!parent_obj)
    return;

  len = vm_VectorDistance(&parent_obj->pos, &obj->pos);

  rend_SetAlphaType(AT_VERTEX);
  rend_SetTextureType(TT_FLAT);
  rend_SetLighting(LS_GOURAUD);
  rend_SetColorModel(CM_RGB);

  vector vecs[2];
  g3Point pnts[2];
  int i;

  vecs[0] = obj->pos;
  vecs[1] = obj->pos - (obj->orient.fvec * len);

  for (i = 0; i < 2; i++) {
    g3_RotatePoint(&pnts[i], &vecs[i]);
    pnts[i].p3_flags |= PF_RGBA;
    pnts[i].p3_r = Weapons[obj->id].lighting_info.red_light1;
    pnts[i].p3_g = Weapons[obj->id].lighting_info.green_light1;
    pnts[i].p3_b = Weapons[obj->id].lighting_info.blue_light1;
  }

  pnts[0].p3_a = (1.0 - norm_time) * .3f;
  pnts[1].p3_a = 0;

  g3_DrawSpecialLine(&pnts[0], &pnts[1]);
}

void DrawBlobbyWeaponRing(object *obj) {
  vector vecs[30];