git.pond.sub.org Git - empserver/blob - src/lib/commands/orde.c

   1 /*
   2  *  Empire - A multi-player, client/server Internet based war game.
   3  *  Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
   4  *                           Ken Stevens, Steve McClure
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  *  ---
  21  *
  22  *  See files README, COPYING and CREDITS in the root of the source
  23  *  tree for related information and legal notices.  It is expected
  24  *  that future projects/authors will amend these files as needed.
  25  *
  26  *  ---
  27  *
  28  *  orde.c: Turn on/off autonavigation
  29  *
  30  *  Known contributors to this file:
  31  *     Chad Zabel, 1994
  32  *     Steve McClure, 2000
  33  */
  34
  35 #include <config.h>
  36
  37 #include <ctype.h>
  38 #include "commands.h"
  39 #include "item.h"
  40 #include "optlist.h"
  41 #include "path.h"
  42 #include "ship.h"
  43
  44 /*
  45  *  Command syntax:
  46  *
  47  *  ORDER <ship>                                  Show orders
  48  *  ORDER <ship> c[ancel]                         Cancel orders
  49  *  ORDER <ship> s[top]                           Suspend orders
  50  *  ORDER <ship> r[esume]                         Resume orders
  51  *  ORDER <ship> d[eclare] <dest1>                Set destination
  52  *               d[eclare] <dest1> <dest2>
  53  *  ORDER <ship> l[evel]   <field> <start/end> <comm> <level>
  54  *
  55  * New syntax:
  56  *  qorder <ship>    display cargo levels
  57  *  sorder <ship>    display statistical info
  58  */
  59
  60 int
  61 orde(void)
  62 {
  63     int diffeachship = 0;
  64     int orders, sub, level;
  65     int scuttling = 0;
  66     struct nstr_item nb;
  67     struct shpstr ship;
  68     struct shpstr start;        /* Used for checking database */
  69     struct ichrstr *i1;
  70     coord p0x, p0y, p1x, p1y;
  71     int i;
  72     char *p, *p1, *dest;
  73     char buf1[128];
  74     char buf[1024];
  75     char prompt[128];
  76
  77     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
  78         return RET_SYN;
  79     while (!player->aborted && nxtitem(&nb, (&ship))) {
  80         if (!player->owner || ship.shp_own == 0)
  81             continue;
  82         if (opt_SAIL) {
  83             if (*ship.shp_path) {
  84                 if (!diffeachship)
  85                     pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  86                 continue;
  87             }
  88         }
  89         memcpy(&start, &ship, sizeof(struct shpstr));
  90         sprintf(prompt,
  91                 "Ship #%d, declare, cancel, suspend, resume, level? ",
  92                 ship.shp_uid);
  93         p = getstarg(player->argp[2], prompt, buf);
  94         if (player->aborted || !p)
  95             return RET_FAIL;
  96         if (!*p) {
  97             if (!diffeachship)
  98                 return RET_FAIL;
  99             else
 100                 continue;
 101         }
 102         switch (*p) {
 103         default:
 104             pr("Bad order type!\n");
 105             return RET_SYN;
 106         case 'c':               /* clear ship fields  */
 107             ship.shp_mission = 0;
 108             ship.shp_autonav &= ~(AN_AUTONAV + AN_STANDBY + AN_LOADING);
 109             for (i = 0; i < TMAX; i++) {
 110                 ship.shp_tstart[i] = I_NONE;
 111                 ship.shp_tend[i] = I_NONE;
 112                 ship.shp_lstart[i] = 0;
 113                 ship.shp_lend[i] = 0;
 114             }
 115             break;
 116         case 's':               /* suspend ship movement  */
 117             ship.shp_mission = 0;
 118             ship.shp_autonav |= AN_STANDBY;
 119             break;
 120         case 'r':               /* resume ship movement   */
 121             ship.shp_mission = 0;
 122             ship.shp_autonav &= ~AN_STANDBY;
 123             break;
 124         case 'd':               /* declare path */
 125             orders = 0;
 126             scuttling = 0;
 127             /* Need location */
 128             if ((p = getstarg(player->argp[3], "Destination? ", buf)) == 0
 129                 || *p == 0)
 130                 return RET_SYN;
 131             if (!sarg_xy(p, &p0x, &p0y))
 132                 return RET_SYN;
 133             p1x = p0x;
 134             p1y = p0y;
 135
 136
 137
 138             if (!orders) {
 139                 p = getstarg(player->argp[4], "Second dest? ", buf);
 140                 if (!p || !*p || !strcmp(p, "-")) {
 141                     orders = 1;
 142                     pr("A one-way order has been accepted.\n");
 143                 } else if (!strncmp(p, "s", 1)) {
 144                     if (opt_TRADESHIPS) {
 145                         if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 146                             pr("You can't auto-scuttle that ship!\n");
 147                             return RET_SYN;
 148                         }
 149                     } else {
 150                         pr("You can't auto-scuttle that ship!\n");
 151                         return RET_SYN;
 152                     }
 153                     pr("A scuttle order has been accepted.\n");
 154                     scuttling = 1;
 155                 } else {
 156                     if (!sarg_xy(p, &p1x, &p1y))
 157                         return RET_SYN;
 158                     pr("A circular order has been accepted.\n");
 159                 }
 160             }
 161
 162             /*
 163              *  Set new destination and trade type fields.
 164              */
 165             ship.shp_mission = 0;
 166             ship.shp_destx[1] = p1x;
 167             ship.shp_desty[1] = p1y;
 168             ship.shp_destx[0] = p0x;
 169             ship.shp_desty[0] = p0y;
 170
 171             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 172             ship.shp_autonav |= AN_AUTONAV;
 173
 174             if (scuttling)
 175                 ship.shp_autonav |= AN_SCUTTLE;
 176             break;
 177
 178             /* set cargo levels on the ship */
 179
 180         case 'l':
 181             /* convert player->argp[3] to an integer */
 182             if (player->argp[3])
 183                 sub = atoi(player->argp[3]);
 184             else {
 185                 sprintf(buf1, "Field (1-%d) ", TMAX);
 186                 if (getstarg(player->argp[3], buf1, buf) == 0)
 187                     return RET_SYN;
 188                 sub = atoi(buf);
 189             }
 190             /* check to make sure value in within range. */
 191             if (sub > TMAX || sub < 1) {
 192                 pr("Value must range from 1 to %d\n", TMAX);
 193                 break;
 194             }
 195
 196             /* to keep sub in range of our arrays
 197                subtract 1 so the new range is 0-(TMAX-1)
 198              */
 199             sub = sub - 1;;
 200
 201             if (ship.shp_autonav & AN_AUTONAV) {
 202                 orders = 1;
 203                 dest = getstarg(player->argp[4], "Start or End? ", buf);
 204                 if (orders) {   /* before dest check */
 205                     if (!dest)
 206                         break;
 207                     switch (*dest) {
 208                     default:
 209                         pr("You must enter 'start' or 'end'\n");
 210                         return RET_SYN;
 211                     case 'e':
 212                     case 'E':
 213                         i1 = whatitem(player->argp[5], "Commodity? ");
 214                         if (!i1)
 215                             break;
 216                         else {
 217                             p1 = getstarg(player->argp[6], "Amount? ",
 218                                           buf);
 219                             if (!p1)
 220                                 return RET_SYN;
 221                             level = atoi(p1);
 222                         }
 223                         if (level < 0) {
 224                             level = 0;  /* prevent negatives. */
 225                             pr("You must use positive number! Level set to 0.\n");
 226                         }
 227                         ship.shp_tstart[sub] = i1->i_uid;
 228                         ship.shp_lstart[sub] = level;
 229                         pr("Order Set \n");
 230                         break;
 231                     case 's':
 232                     case 'S':
 233                         i1 = whatitem(player->argp[5], "Commodity? ");
 234                         if (!i1)
 235                             break;
 236                         else {
 237                             p1 = getstarg(player->argp[6], "Amount? ",
 238                                           buf);
 239                             if (!p1)
 240                                 return RET_SYN;
 241                             level = atoi(p1);
 242                         }
 243                         if (level < 0) {
 244                             level = 0;
 245                             pr("You must use positive number! Level set to 0.\n");
 246                         }
 247                         ship.shp_tend[sub] = i1->i_uid;
 248                         ship.shp_lend[sub] = level;
 249                         pr("Order Set \n");
 250                         break;
 251                     }
 252                 }
 253             } else
 254                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 255
 256             break;
 257         }                       /* end of switch (*p) */
 258
 259
 260
 261         /*
 262          *  Set loading flag if ship is already in one
 263          *  of the specified harbors and a cargo has been
 264          *  specified.
 265          */
 266
 267         if (((ship.shp_x == ship.shp_destx[0])
 268              && (ship.shp_y == ship.shp_desty[0])
 269              && (ship.shp_lstart[0] != ' '))
 270             || ((ship.shp_x == ship.shp_desty[1])
 271                 && (ship.shp_y == ship.shp_desty[1])
 272                 && (ship.shp_lstart[1] != ' '))) {
 273
 274             coord tcord;
 275             i_type tcomm;
 276             short lev[TMAX];
 277             int i;
 278
 279             ship.shp_autonav |= AN_LOADING;
 280
 281             /*  swap variables, this keeps
 282                the load_it() procedure happy. CZ
 283              */
 284             tcord = ship.shp_destx[0];
 285             ship.shp_destx[0] = ship.shp_destx[1];
 286             ship.shp_destx[1] = tcord;
 287             tcord = ship.shp_desty[0];
 288             ship.shp_desty[0] = ship.shp_desty[1];
 289             ship.shp_desty[1] = tcord;
 290
 291             for (i = 0; i < TMAX; i++) {
 292                 lev[i] = ship.shp_lstart[i];
 293                 ship.shp_lstart[i] = ship.shp_lend[i];
 294                 ship.shp_lend[i] = lev[i];
 295                 tcomm = ship.shp_tstart[i];
 296                 ship.shp_tstart[i] = ship.shp_tend[i];
 297                 ship.shp_tend[i] = tcomm;
 298             }
 299         }
 300         /*
 301            **  Write ship back to database, then give it
 302            **  a kick down the autonav route if necessary.
 303          */
 304
 305
 306         /* Now do a sanity check. */
 307         if (!check_ship_ok(&start))
 308             return RET_SYN;
 309
 310         putship(ship.shp_uid, &ship);
 311     }
 312     return RET_OK;
 313 }
 314
 315 static void
 316 eta_calc(struct shpstr *sp, char *path, int *len, int *nupdates)
 317 {
 318     double mobcost, mobil;
 319     int i;
 320
 321     i = strlen(path);
 322     *len = i;
 323     *nupdates = 1;
 324
 325     mobcost = shp_mobcost(sp);
 326     mobil = sp->shp_mobil;
 327     while (i) {
 328         if (mobil > 0) {
 329             mobil -= mobcost;
 330             i--;
 331         } else {
 332             mobil += (ship_mob_scale * (float)etu_per_update);
 333             (*nupdates)++;
 334         }
 335     }
 336 }
 337
 338 static void
 339 prhold(int hold, i_type itype, int amt)
 340 {
 341     if (itype != I_NONE && amt != 0) {
 342         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 343             return;
 344         pr("%d-", hold + 1);
 345         pr("%c", ichr[itype].i_mnem);
 346         pr(":");
 347         pr("%d ", amt);
 348     }
 349 }
 350
 351 int
 352 qorde(void)
 353 {
 354     int nships = 0;
 355     int i;
 356     struct nstr_item nb;
 357     struct shpstr ship;
 358
 359     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
 360         return RET_SYN;
 361     while (nxtitem(&nb, (&ship))) {
 362         if (!player->owner || ship.shp_own == 0)
 363             continue;
 364         if (!(ship.shp_autonav & AN_AUTONAV)
 365             && (!opt_SAIL || !ship.shp_path[0]))
 366             continue;
 367
 368         if (!nships) {          /* 1st ship, print banner */
 369             if (player->god)
 370                 pr("own ");
 371             pr("shp#     ship type    ");
 372             pr("[Starting]       (Ending)    \n");
 373         }
 374         nships++;
 375         if (player->god)
 376             pr("%3d ", ship.shp_own);
 377         pr("%4d", nb.cur);
 378         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 379
 380         if (ship.shp_autonav & AN_AUTONAV) {
 381             pr(" [");
 382             for (i = 0; i < TMAX; i++)
 383                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 384             pr("] , (");
 385             for (i = 0; i < TMAX; i++)
 386                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 387             pr(")");
 388             if (ship.shp_autonav & AN_SCUTTLE)
 389                 pr(" scuttling");
 390             pr("\n");
 391         } else
 392             pr(" has a sail path\n");
 393
 394         if (ship.shp_name[0] != 0) {
 395             if (player->god)
 396                 pr("    ");
 397             pr("       %s\n", ship.shp_name);
 398         }
 399     }
 400     if (!nships) {
 401         if (player->argp[1])
 402             pr("%s: No ship(s)\n", player->argp[1]);
 403         else
 404             pr("%s: No ship(s)\n", "");
 405         return RET_FAIL;
 406     } else
 407         pr("%d ship%s\n", nships, splur(nships));
 408     return RET_OK;
 409 }
 410
 411 int
 412 sorde(void)
 413 {
 414     int nships = 0;
 415     int len, updates;
 416     char *c;
 417     struct nstr_item nb;
 418     struct shpstr ship;
 419     char buf[1024];
 420
 421     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
 422         return RET_SYN;
 423     while (nxtitem(&nb, (&ship))) {
 424         if (!player->owner || ship.shp_own == 0)
 425             continue;
 426         if (!(ship.shp_autonav & AN_AUTONAV)
 427             && (!opt_SAIL || !ship.shp_path[0]))
 428             continue;
 429
 430         if (!nships) {          /* 1st ship, print banner */
 431             if (player->god)
 432                 pr("own ");
 433             pr("shp#     ship type      x,y    ");
 434             pr("start    end   ");
 435             pr("len  eta\n");
 436         }
 437         nships++;
 438         if (player->god)
 439             pr("%3d ", ship.shp_own);
 440         pr("%4d", nb.cur);
 441         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 442         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 443
 444         if (ship.shp_autonav & AN_AUTONAV) {
 445             /* Destination 1 */
 446             prxy(" %3d,%-3d",
 447                  ship.shp_destx[1], ship.shp_desty[1], player->cnum);
 448
 449             /* Destination 2 */
 450             if ((ship.shp_destx[1] != ship.shp_destx[0])
 451                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 452                 prxy(" %3d,%-3d",
 453                      ship.shp_destx[0], ship.shp_desty[0], player->cnum);
 454             } else
 455                 pr("        ");
 456
 457             if (ship.shp_autonav & AN_STANDBY)
 458                 pr(" suspended");
 459             else if (ship.shp_autonav & AN_LOADING)
 460                 pr(" loading");
 461             else {
 462                 /* ETA calculation */
 463
 464                 c = BestShipPath(buf, ship.shp_x, ship.shp_y,
 465                                  ship.shp_destx[0], ship.shp_desty[0],
 466                                  ship.shp_own);
 467                 if (!c)
 468                     pr(" no route possible");
 469                 else if (*c == 'h')
 470                     pr(" has arrived");
 471                 else {
 472                     /* distance to destination */
 473                     eta_calc(&ship, c, &len, &updates);
 474                     pr(" %3d %4d", len, updates);
 475                 }
 476             }
 477             if (ship.shp_autonav & AN_SCUTTLE)
 478                 pr(" (scuttling)");
 479             pr("\n");
 480         } else
 481             pr(" has a sail path\n");
 482
 483         if (ship.shp_name[0] != 0) {
 484             if (player->god)
 485                 pr("    ");
 486             pr("       %s\n", ship.shp_name);
 487         }
 488     }
 489     if (!nships) {
 490         if (player->argp[1])
 491             pr("%s: No ship(s)\n", player->argp[1]);
 492         else
 493             pr("%s: No ship(s)\n", "");
 494         return RET_FAIL;
 495     } else
 496         pr("%d ship%s\n", nships, splur(nships));
 497     return RET_OK;
 498 }