Function AIDetermineTarget

Descent3/AImain.cpp:5912–5987

}

void AIDetermineTarget(object *obj) {
  ai_frame *ai_info = obj->ai_info;
  object *best_obj = NULL;
  float best_dot = -1.0f;
  float best_dist = MAX_SEE_TARGET_DIST + 1;
  int i;

  if (Gametime < ai_info->next_target_update_time)
    return;

  if (ai_info->awareness >= AWARE_BARELY)
    ai_info->next_target_update_time =
        Gametime + MIN_TARGET_UPDATE_INTERVAL +
        ((float)ps_rand() / (float)D3_RAND_MAX) * (MAX_TARGET_UPDATE_INTERVAL - MIN_TARGET_UPDATE_INTERVAL);
  else
    ai_info->next_target_update_time =
        Gametime + 2.0f * MIN_TARGET_UPDATE_INTERVAL +
        ((float)ps_rand() / (float)D3_RAND_MAX) * 2.0f * (MAX_TARGET_UPDATE_INTERVAL - MIN_TARGET_UPDATE_INTERVAL);

  // Chrishack -- if agression is over a value, NO switching targets!!!!!!!!!  Need to implement
  // Chrishack -- if frustration is over a value, act as hostile -- temp stuff AIF_TEAM_HOSTILE

  // They forget their enemies after a few seconds
  if ((ai_info->flags & AIF_TEAM_MASK) == AIF_TEAM_NEUTRAL || (ai_info->flags & AIF_ACT_AS_NEUTRAL_UNTIL_SHOT)) {
    best_obj = NULL;
  } else if ((ai_info->flags & AIF_TEAM_MASK) != AIF_TEAM_PTMC) {
    int16_t list[50];
    int num = fvi_QuickDistObjectList(&obj->pos, obj->roomnum, MAX_SEE_TARGET_DIST, list, 50, false, true, false, true);

    for (i = 0; i < num; i++) {
      AITargetCheck(obj, &Objects[list[i]], &best_obj, &best_dot, &best_dist);
    }
  } else // Team PTMC  :)
  {
    if (Game_mode & GM_MULTI) {
      // Multiplayer targetting (Major difference is that robot will ignore players while infighting in single player)
      for (i = 0; i < MAX_PLAYERS; i++) {
        if ((NetPlayers[i].flags & NPF_CONNECTED) && (NetPlayers[i].sequence >= NETSEQ_PLAYING)) {
          object *target = &Objects[Players[i].objnum];

          AITargetCheck(obj, target, &best_obj, &best_dot, &best_dist);
        }
      }
    } else {
      object *t = ObjGet(ai_info->target_handle);
      bool f_forgive_friend = false;

      if ((t) && (t->control_type == CT_AI) && ((t->ai_info->flags & AIF_TEAM_MASK) == AIF_TEAM_PTMC)) {
        // Do the divide because we don't want D3_RAND_MAX to go too high
        if (ps_rand() / AI_FORGIVE_AGRESSION_MULTIPLIER > ai_info->agression * D3_RAND_MAX) {
          f_forgive_friend = true;
        }
      }

      // chrishack -- FUCK  a multi-guidebot bug!!!!!!
      if (f_forgive_friend || !ai_target_valid(obj) ||
          (ai_info->target_handle != OBJECT_HANDLE_NONE && ai_info->target_handle == Buddy_handle[0] &&
           ObjGet(Buddy_handle[0])->type != OBJ_GHOST)) {