src/network/multi_observer.cpp

   1 /*
   2  * $Logfile: /Freespace2/code/Network/multi_observer.cpp $
   3  * $Revision$
   4  * $Date$
   5  * $Author$
   6  *
   7  * $Log$
   8  * Revision 1.1  2002/05/03 03:28:10  root
   9  * Initial revision
  10  *
  11  *
  12  * 6     9/14/99 2:21p Dave
  13  * Fixed observer mode joining and ingame stuff.
  14  *
  15  * 5     8/19/99 10:59a Dave
  16  * Packet loss detection.
  17  *
  18  * 4     11/17/98 11:12a Dave
  19  * Removed player identification by address. Now assign explicit id #'s.
  20  *
  21  * 3     11/05/98 5:55p Dave
  22  * Big pass at reducing #includes
  23  *
  24  * 2     10/07/98 10:53a Dave
  25  * Initial checkin.
  26  *
  27  * 1     10/07/98 10:50a Dave
  28  *
  29  * 13    6/13/98 6:01p Hoffoss
  30  * Externalized all new (or forgot to be added) strings to all the code.
  31  *
  32  * 12    6/04/98 11:04a Allender
  33  * object update level stuff.  Don't reset to high when becoming an
  34  * observer of any type.  default to low when guy is a dialup customer
  35  *
  36  * 11    5/22/98 9:49p Allender
  37  * make observers Player_ship hidden from sensors so that he cannot target
  38  * his "ship".
  39  *
  40  * 10    5/19/98 11:36p Allender
  41  * fixed very nasty mask problem with ingame joiner marking player objects
  42  * incorrectly.  Named ingame joiner ship and observer ship unique names
  43  *
  44  * 9     4/18/98 5:00p Dave
  45  * Put in observer zoom key. Made mission sync screen more informative.
  46  *
  47  * 8     4/03/98 3:13p Dave
  48  * More work on udp reliable transport. Fixed observer hud offset problem.
  49  * Made observer join and ingame join work again. Put subnet broadcasting
  50  * in for TCP.
  51  *
  52  * 7     3/30/98 6:27p Dave
  53  * Put in a more official set of multiplayer options, including a system
  54  * for distributing netplayer and netgame settings.
  55  *
  56  * 6     3/24/98 5:00p Dave
  57  * Fixed several ui bugs. Put in pre and post voice stream playback sound
  58  * fx. Put in error specific popups for clients getting dropped from games
  59  * through actions other than their own.
  60  *
  61  * 5     3/23/98 5:42p Dave
  62  * Put in automatic xfer of pilot pic files. Changed multi_xfer system so
  63  * that it can support multiplayer sends/received between client and
  64  * server simultaneously.
  65  *
  66  * 4     3/15/98 4:17p Dave
  67  * Fixed oberver hud problems. Put in handy netplayer macros. Reduced size
  68  * of network orientation matrices.
  69  *
  70  * 3     3/14/98 2:48p Dave
  71  * Cleaned up observer joining code. Put in support for file xfers to
  72  * ingame joiners (observers or not). Revamped and reinstalled pseudo
  73  * lag/loss system.
  74  *
  75  * 2     3/13/98 2:51p Dave
  76  * Put in support for observers to join ingame.
  77  *
  78  * 1     3/12/98 5:44p Dave
  79  *
  80  * $NoKeywords: $
  81  */
  82
  83 #include "freespace.h"
  84 #include "multi.h"
  85 #include "multiutil.h"
  86 #include "object.h"
  87 #include "observer.h"
  88 #include "hudconfig.h"
  89 #include "hudobserver.h"
  90 #include "managepilot.h"
  91 #include "multi_observer.h"
  92 #include "missionparse.h"
  93 #include "timer.h"
  94
  95 // ---------------------------------------------------------------------------------------
  96 // MULTI OBSERVER DEFINES/VARS
  97 //
  98
  99
 100 // ---------------------------------------------------------------------------------------
 101 // MULTI OBSERVER FUNCTIONS
 102 //
 103
 104 // create a _permanent_ observer player
 105 int multi_obs_create_player(int player_num,char *name,net_addr *addr,player *pl)
 106 {
 107         // blast the player struct
 108         memset(&Net_players[player_num],0,sizeof(net_player));
 109
 110         // Net_players[player_num].flags |= (NETINFO_FLAG_CONNECTED | NETINFO_FLAG_OBSERVER);
 111         // DOH!!! The lack of this caused many bugs.
 112         Net_players[player_num].flags = (NETINFO_FLAG_DO_NETWORKING | NETINFO_FLAG_OBSERVER);
 113         // memcpy(&Net_players[player_num].p_info.addr, addr, sizeof(net_addr));
 114         Net_players[player_num].player = pl;
 115
 116         // 6/3/98 -- don't set observer to update high...let it be whatever player set it at.
 117         //Net_players[player_num].p_info.options.obj_update_level = OBJ_UPDATE_HIGH;
 118         // set up the net_player structure
 119         memset(pl, 0, sizeof(player));
 120         stuff_netplayer_info( &Net_players[player_num], addr, 0, pl );
 121         Net_players[player_num].last_heard_time = timer_get_fixed_seconds();
 122         Net_players[player_num].reliable_socket = INVALID_SOCKET;
 123         Net_players[player_num].s_info.kick_timestamp = -1;
 124         Net_players[player_num].s_info.voice_token_timestamp = -1;
 125         Net_players[player_num].s_info.tracker_security_last = -1;
 126         Net_players[player_num].s_info.target_objnum = -1;
 127         Net_players[player_num].s_info.accum_buttons = 0;
 128
 129         // reset the ping for this player
 130         multi_ping_reset(&Net_players[player_num].s_info.ping);
 131
 132         // timestamp his last_full_update_time
 133         Net_players[player_num].s_info.last_full_update_time = timestamp(0);
 134         Net_players[player_num].player->objnum = -1;
 135
 136         // nil his file xfer handle
 137         Net_players[player_num].s_info.xfer_handle = -1;
 138
 139         // zero out his object update and control info sequencing data
 140         Net_players[player_num].client_cinfo_seq = 0;
 141         Net_players[player_num].client_server_seq = 0;
 142
 143         // his kick timestamp
 144         Net_players[player_num].s_info.kick_timestamp = -1;
 145
 146         // nil his data rate timestamp stuff
 147         Net_players[player_num].s_info.rate_stamp = -1;
 148         Net_players[player_num].s_info.rate_bytes = 0;
 149
 150         // nil packet buffer stuff
 151         Net_players[player_num].s_info.unreliable_buffer_size = 0;
 152         Net_players[player_num].s_info.reliable_buffer_size = 0;
 153
 154         // callsign and short callsign
 155         strcpy(pl->callsign,name);
 156         pilot_set_short_callsign(pl,SHORT_CALLSIGN_PIXEL_W);
 157         pl->flags |= PLAYER_FLAGS_STRUCTURE_IN_USE;
 158
 159         Net_players[player_num].sv_bytes_sent = 0;
 160         Net_players[player_num].sv_last_pl = -1;
 161         Net_players[player_num].cl_bytes_recvd = 0;
 162         Net_players[player_num].cl_last_pl = -1;
 163
 164         return 1;
 165 }
 166
 167 // create an explicit observer object and assign it to the passed player
 168 void multi_obs_create_observer(net_player *pl)
 169 {
 170         int objnum;
 171
 172         // create the basic observer object
 173         objnum = observer_create( &vmd_identity_matrix, &vmd_zero_vector);
 174         Assert(objnum != -1);
 175         Objects[objnum].flags |= OF_PLAYER_SHIP;
 176         Objects[objnum].net_signature = 0;
 177
 178         // put it a 1,1,1
 179         Objects[objnum].pos.x = 1.0f;
 180         Objects[objnum].pos.y = 1.0f;
 181         Objects[objnum].pos.z = 1.0f;
 182
 183         // assign this object to the player
 184         pl->player->objnum = objnum;
 185 }
 186
 187 // create observer object locally, and additionally, setup some other information
 188 // ( client-side equivalent of multi_obs_create_observer() )
 189 void multi_obs_create_observer_client()
 190 {
 191         int pobj_num;
 192
 193         Assert(!(Net_player->flags & NETINFO_FLAG_OBS_PLAYER));
 194
 195         // make me an observer object
 196         multi_obs_create_observer(Net_player);
 197
 198         // set my object to be the observer object
 199         Player_obj = &Objects[Net_player->player->objnum];
 200
 201         // create the default player ship object and use that as my default virtual "ship", and make it "invisible"
 202         pobj_num = parse_create_object(&Player_start_pobject);
 203         Assert(pobj_num != -1);
 204         obj_set_flags(&Objects[pobj_num],OF_PLAYER_SHIP);
 205         Player_ship = &Ships[Objects[pobj_num].instance];
 206
 207         // make ship hidden from sensors so that this observer cannot target it.  Observers really have two ships
 208         // one observer, and one "Player_ship".  Observer needs to ignore the Player_ship.
 209         Player_ship->flags |= SF_HIDDEN_FROM_SENSORS;
 210         strcpy(Player_ship->ship_name, XSTR("Observer Ship",688));
 211         Player_ai = &Ai_info[Ships[Objects[pobj_num].instance].ai_index];
 212
 213         // configure the hud to be in "observer" mode
 214         hud_config_as_observer(Player_ship,Player_ai);
 215
 216         // set some flags for myself
 217         Net_player->flags |= NETINFO_FLAG_OBSERVER;
 218
 219         // reset the control info structure
 220         memset(&Player->ci,0,sizeof(control_info));
 221 }
 222
 223 // create objects for all known observers in the game at level start
 224 // call this before entering a mission
 225 // this implies for the local player in the case of a client or for _all_ players in the case of a server
 226 void multi_obs_level_init()
 227 {
 228         int idx;
 229
 230         // unset the OBS_PLAYER flag here for all net players
 231         for(idx=0;idx<MAX_PLAYERS;idx++){
 232                 Net_players[idx].flags &= ~(NETINFO_FLAG_OBS_PLAYER);
 233         }
 234
 235         // if i'm a client and I'm an observer, create an object for myself
 236         if(!(Net_player->flags & NETINFO_FLAG_AM_MASTER) && (Net_player->flags & NETINFO_FLAG_OBSERVER)){
 237                 // create my own observer object and setup other misc. data
 238                 multi_obs_create_observer_client();
 239         }
 240         // otherwise create stuff for all (permanent) observers in the game
 241         else {
 242                 for(idx=0;idx<MAX_PLAYERS;idx++){
 243                         if(MULTI_CONNECTED(Net_players[idx]) && MULTI_OBSERVER(Net_players[idx])){
 244                                 // make an observer object for the guy
 245                                 multi_obs_create_observer(&Net_players[idx]);
 246                         }
 247                 }
 248         }
 249 }
 250
 251 // if i'm an observer, zoom to near my targted object (if any)
 252 void multi_obs_zoom_to_target()
 253 {
 254         vector direct;
 255         float dist;
 256
 257         // if i'm not an observer, do nothing
 258         if(!(Game_mode & GM_MULTIPLAYER) || (Net_player == NULL) || !(Net_player->flags & NETINFO_FLAG_OBSERVER) || (Player_obj->type != OBJ_OBSERVER)){
 259                 return;
 260         }
 261
 262         // if I have no targeted object, do nothing
 263         if(Player_ai->target_objnum == -1){
 264                 return;
 265         }
 266
 267         // get the normalized direction vector between the observer and the targeted object
 268         vm_vec_sub(&direct,&Objects[Player_ai->target_objnum].pos,&Player_obj->pos);
 269         dist = vm_vec_mag(&direct);
 270         vm_vec_normalize(&direct);
 271
 272         // orient the guy correctly
 273         vm_vec_ang_2_matrix(&Player_obj->orient,&direct,0.0f);
 274
 275         // keep about 3 object radii away when moving
 276         dist -= (Objects[Player_ai->target_objnum].radius * 3.0f);
 277
 278         // get the movement vector
 279         vm_vec_scale(&direct,dist);
 280
 281         // move
 282         vm_vec_add2(&Player_obj->pos,&direct);
 283 }
 284
 285
 286