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) 1986-2011, Dave Pare, Jeff Bailey, Thomas Ruschak,
   4  *                Ken Stevens, Steve McClure, Markus Armbruster
   5  *
   6  *  Empire 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 3 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, see <http://www.gnu.org/licenses/>.
  18  *
  19  *  ---
  20  *
  21  *  See files README, COPYING and CREDITS in the root of the source
  22  *  tree for related information and legal notices.  It is expected
  23  *  that future projects/authors will amend these files as needed.
  24  *
  25  *  ---
  26  *
  27  *  orde.c: Turn on/off autonavigation
  28  *
  29  *  Known contributors to this file:
  30  *     Chad Zabel, 1994
  31  *     Steve McClure, 2000
  32  *     Markus Armbruster, 2004-2011
  33  */
  34
  35 #include <config.h>
  36
  37 #include "commands.h"
  38 #include "item.h"
  39 #include "optlist.h"
  40 #include "path.h"
  41 #include "ship.h"
  42
  43 /*
  44  *  Command syntax:
  45  *
  46  *  ORDER <ship>                                  Show orders
  47  *  ORDER <ship> c[ancel]                         Cancel orders
  48  *  ORDER <ship> s[top]                           Suspend orders
  49  *  ORDER <ship> r[esume]                         Resume orders
  50  *  ORDER <ship> d[eclare] <dest1>                Set destination
  51  *               d[eclare] <dest1> <dest2>
  52  *  ORDER <ship> l[evel]   <field> <start/end> <comm> <level>
  53  *
  54  * New syntax:
  55  *  qorder <ship>    display cargo levels
  56  *  sorder <ship>    display statistical info
  57  */
  58
  59 int
  60 orde(void)
  61 {
  62     int sub, level;
  63     int scuttling = 0;
  64     struct nstr_item nb;
  65     struct shpstr ship;
  66     struct ichrstr *i1;
  67     coord p0x, p0y, p1x, p1y;
  68     int i;
  69     char *p, *p1, *dest;
  70     char buf1[128];
  71     char buf[1024];
  72     char prompt[128];
  73
  74     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
  75         return RET_SYN;
  76     while (!player->aborted && nxtitem(&nb, (&ship))) {
  77         if (!player->owner || ship.shp_own == 0)
  78             continue;
  79         if (opt_SAIL) {
  80             if (*ship.shp_path) {
  81                 pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  82                 continue;
  83             }
  84         }
  85         sprintf(prompt,
  86                 "Ship #%d, declare, cancel, suspend, resume, level? ",
  87                 ship.shp_uid);
  88         p = getstarg(player->argp[2], prompt, buf);
  89         if (player->aborted || !p || !*p)
  90             return RET_FAIL;
  91         if (!check_ship_ok(&ship))
  92             return RET_FAIL;
  93         switch (*p) {
  94         default:
  95             pr("Bad order type!\n");
  96             return RET_SYN;
  97         case 'c':               /* clear ship fields  */
  98             ship.shp_mission = 0;
  99             ship.shp_autonav &= ~(AN_AUTONAV + AN_STANDBY + AN_LOADING);
 100             for (i = 0; i < TMAX; i++) {
 101                 ship.shp_tstart[i] = I_NONE;
 102                 ship.shp_tend[i] = I_NONE;
 103                 ship.shp_lstart[i] = 0;
 104                 ship.shp_lend[i] = 0;
 105             }
 106             break;
 107         case 's':               /* suspend ship movement  */
 108             ship.shp_mission = 0;
 109             ship.shp_autonav |= AN_STANDBY;
 110             break;
 111         case 'r':               /* resume ship movement   */
 112             ship.shp_mission = 0;
 113             ship.shp_autonav &= ~AN_STANDBY;
 114             break;
 115         case 'd':               /* declare path */
 116             scuttling = 0;
 117             /* Need location */
 118             p = getstarg(player->argp[3], "Destination? ", buf);
 119             if (!p || !*p)
 120                 return RET_SYN;
 121             if (!sarg_xy(p, &p0x, &p0y))
 122                 return RET_SYN;
 123             p1x = p0x;
 124             p1y = p0y;
 125
 126             p = getstarg(player->argp[4], "Second dest? ", buf);
 127             if (!p)
 128                 return RET_FAIL;
 129             if (!check_ship_ok(&ship))
 130                 return RET_FAIL;
 131             if (!*p || !strcmp(p, "-")) {
 132                 pr("A one-way order has been accepted.\n");
 133             } else if (!strncmp(p, "s", 1)) {
 134                 if (opt_TRADESHIPS) {
 135                     if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 136                         pr("You can't auto-scuttle that ship!\n");
 137                         return RET_SYN;
 138                     }
 139                 } else {
 140                     pr("You can't auto-scuttle that ship!\n");
 141                     return RET_SYN;
 142                 }
 143                 pr("A scuttle order has been accepted.\n");
 144                 scuttling = 1;
 145             } else {
 146                 if (!sarg_xy(p, &p1x, &p1y))
 147                     return RET_SYN;
 148                 pr("A circular order has been accepted.\n");
 149             }
 150
 151             /*
 152              *  Set new destination and trade type fields.
 153              */
 154             ship.shp_mission = 0;
 155             ship.shp_destx[1] = p1x;
 156             ship.shp_desty[1] = p1y;
 157             ship.shp_destx[0] = p0x;
 158             ship.shp_desty[0] = p0y;
 159
 160             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 161             ship.shp_autonav |= AN_AUTONAV;
 162
 163             if (scuttling)
 164                 ship.shp_autonav |= AN_SCUTTLE;
 165             break;
 166
 167             /* set cargo levels on the ship */
 168
 169         case 'l':
 170             /* convert player->argp[3] to an integer */
 171             sprintf(buf1, "Field (1-%d) ", TMAX);
 172             if (!getstarg(player->argp[3], buf1, buf))
 173                 return RET_SYN;
 174             if (!check_ship_ok(&ship))
 175                 return RET_FAIL;
 176             sub = atoi(buf);
 177             /* check to make sure value in within range. */
 178             if (sub > TMAX || sub < 1) {
 179                 pr("Value must range from 1 to %d\n", TMAX);
 180                 return RET_FAIL;
 181             }
 182
 183             /* to keep sub in range of our arrays
 184                subtract 1 so the new range is 0-(TMAX-1)
 185              */
 186             sub = sub - 1;;
 187
 188             if (ship.shp_autonav & AN_AUTONAV) {
 189                 dest = getstarg(player->argp[4], "Start or end? ", buf);
 190                 if (!dest)
 191                     return RET_FAIL;
 192                 switch (*dest) {
 193                 default:
 194                     pr("You must enter 'start' or 'end'\n");
 195                     return RET_SYN;
 196                 case 'e':
 197                 case 'E':
 198                     i1 = whatitem(player->argp[5], "Commodity? ");
 199                     if (!i1)
 200                         return RET_FAIL;
 201                     p1 = getstarg(player->argp[6], "Amount? ", buf);
 202                     if (!p1)
 203                         return RET_SYN;
 204                     if (!check_ship_ok(&ship))
 205                         return RET_FAIL;
 206                     level = atoi(p1);
 207                     if (level < 0) {
 208                         level = 0;      /* prevent negatives. */
 209                         pr("You must use positive number! Level set to 0.\n");
 210                     }
 211                     ship.shp_tstart[sub] = i1->i_uid;
 212                     ship.shp_lstart[sub] = level;
 213                     pr("Order set\n");
 214                     break;
 215                 case 's':
 216                 case 'S':
 217                     i1 = whatitem(player->argp[5], "Commodity? ");
 218                     if (!i1)
 219                         return RET_FAIL;
 220                     p1 = getstarg(player->argp[6], "Amount? ", buf);
 221                     if (!p1)
 222                         return RET_SYN;
 223                     if (!check_ship_ok(&ship))
 224                         return RET_FAIL;
 225                     level = atoi(p1);
 226                     if (level < 0) {
 227                         level = 0;
 228                         pr("You must use positive number! Level set to 0.\n");
 229                     }
 230                     ship.shp_tend[sub] = i1->i_uid;
 231                     ship.shp_lend[sub] = level;
 232                     pr("Order Set \n");
 233                     break;
 234                 }
 235             } else
 236                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 237
 238             break;
 239         }                       /* end of switch (*p) */
 240
 241
 242
 243         /*
 244          *  Set loading flag if ship is already in one
 245          *  of the specified harbors and a cargo has been
 246          *  specified.
 247          */
 248
 249         if (((ship.shp_x == ship.shp_destx[0])
 250              && (ship.shp_y == ship.shp_desty[0])
 251              && (ship.shp_lstart[0] != ' '))
 252             || ((ship.shp_x == ship.shp_desty[1])
 253                 && (ship.shp_y == ship.shp_desty[1])
 254                 && (ship.shp_lstart[1] != ' '))) {
 255
 256             coord tcord;
 257             i_type tcomm;
 258             short lev[TMAX];
 259             int i;
 260
 261             ship.shp_autonav |= AN_LOADING;
 262
 263             /*  swap variables, this keeps
 264                the load_it() procedure happy. CZ
 265              */
 266             tcord = ship.shp_destx[0];
 267             ship.shp_destx[0] = ship.shp_destx[1];
 268             ship.shp_destx[1] = tcord;
 269             tcord = ship.shp_desty[0];
 270             ship.shp_desty[0] = ship.shp_desty[1];
 271             ship.shp_desty[1] = tcord;
 272
 273             for (i = 0; i < TMAX; i++) {
 274                 lev[i] = ship.shp_lstart[i];
 275                 ship.shp_lstart[i] = ship.shp_lend[i];
 276                 ship.shp_lend[i] = lev[i];
 277                 tcomm = ship.shp_tstart[i];
 278                 ship.shp_tstart[i] = ship.shp_tend[i];
 279                 ship.shp_tend[i] = tcomm;
 280             }
 281         }
 282
 283         putship(ship.shp_uid, &ship);
 284     }
 285     return RET_OK;
 286 }
 287
 288 static int
 289 eta_calc(struct shpstr *sp, int len)
 290 {
 291     double mobcost, mobil;
 292     int i, nupdates;
 293
 294     i = len;
 295     nupdates = 1;
 296
 297     mobcost = shp_mobcost(sp);
 298     mobil = sp->shp_mobil;
 299     while (i) {
 300         if (mobil > 0) {
 301             mobil -= mobcost;
 302             i--;
 303         } else {
 304             mobil += (ship_mob_scale * (float)etu_per_update);
 305             nupdates++;
 306         }
 307     }
 308     return nupdates;
 309 }
 310
 311 static void
 312 prhold(int hold, i_type itype, int amt)
 313 {
 314     if (itype != I_NONE && amt != 0) {
 315         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 316             return;
 317         pr("%d-", hold + 1);
 318         pr("%c", ichr[itype].i_mnem);
 319         pr(":");
 320         pr("%d ", amt);
 321     }
 322 }
 323
 324 int
 325 qorde(void)
 326 {
 327     int nships = 0;
 328     int i;
 329     struct nstr_item nb;
 330     struct shpstr ship;
 331
 332     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 333         return RET_SYN;
 334     while (nxtitem(&nb, (&ship))) {
 335         if (!player->owner || ship.shp_own == 0)
 336             continue;
 337         if (!(ship.shp_autonav & AN_AUTONAV)
 338             && (!opt_SAIL || !ship.shp_path[0]))
 339             continue;
 340
 341         if (!nships) {          /* 1st ship, print banner */
 342             if (player->god)
 343                 pr("own ");
 344             pr("shp#     ship type    ");
 345             pr("[Starting]       (Ending)    \n");
 346         }
 347         nships++;
 348         if (player->god)
 349             pr("%3d ", ship.shp_own);
 350         pr("%4d", nb.cur);
 351         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 352
 353         if (ship.shp_autonav & AN_AUTONAV) {
 354             pr(" [");
 355             for (i = 0; i < TMAX; i++)
 356                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 357             pr("] , (");
 358             for (i = 0; i < TMAX; i++)
 359                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 360             pr(")");
 361             if (ship.shp_autonav & AN_SCUTTLE)
 362                 pr(" scuttling");
 363             pr("\n");
 364         } else
 365             pr(" has a sail path\n");
 366
 367         if (ship.shp_name[0] != 0) {
 368             if (player->god)
 369                 pr("    ");
 370             pr("       %s\n", ship.shp_name);
 371         }
 372     }
 373     if (!nships) {
 374         if (player->argp[1])
 375             pr("%s: No ship(s)\n", player->argp[1]);
 376         else
 377             pr("%s: No ship(s)\n", "");
 378         return RET_FAIL;
 379     } else
 380         pr("%d ship%s\n", nships, splur(nships));
 381     return RET_OK;
 382 }
 383
 384 int
 385 sorde(void)
 386 {
 387     int nships = 0;
 388     int len, updates;
 389     double c;
 390     struct nstr_item nb;
 391     struct shpstr ship;
 392
 393     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 394         return RET_SYN;
 395     while (nxtitem(&nb, (&ship))) {
 396         if (!player->owner || ship.shp_own == 0)
 397             continue;
 398         if (!(ship.shp_autonav & AN_AUTONAV)
 399             && (!opt_SAIL || !ship.shp_path[0]))
 400             continue;
 401
 402         if (!nships) {          /* 1st ship, print banner */
 403             if (player->god)
 404                 pr("own ");
 405             pr("shp#     ship type      x,y    ");
 406             pr("start    end   ");
 407             pr("len  eta\n");
 408         }
 409         nships++;
 410         if (player->god)
 411             pr("%3d ", ship.shp_own);
 412         pr("%4d", nb.cur);
 413         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 414         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y);
 415
 416         if (ship.shp_autonav & AN_AUTONAV) {
 417             /* Destination 1 */
 418             prxy(" %3d,%-3d", ship.shp_destx[1], ship.shp_desty[1]);
 419
 420             /* Destination 2 */
 421             if ((ship.shp_destx[1] != ship.shp_destx[0])
 422                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 423                 prxy(" %3d,%-3d", ship.shp_destx[0], ship.shp_desty[0]);
 424             } else
 425                 pr("        ");
 426
 427             if (ship.shp_autonav & AN_STANDBY)
 428                 pr(" suspended");
 429             else if (ship.shp_autonav & AN_LOADING)
 430                 pr(" loading");
 431             else {
 432                 /* ETA calculation */
 433                 c = path_find(ship.shp_x, ship.shp_y,
 434                               ship.shp_destx[0], ship.shp_desty[0],
 435                               ship.shp_own, MOB_SAIL);
 436                 if (c < 0)
 437                     pr(" no route possible");
 438                 else if (c == 0)
 439                     pr(" has arrived");
 440                 else {
 441                     /* distance to destination */
 442                     len = (int)c;
 443                     updates = eta_calc(&ship, len);
 444                     pr(" %3d %4d", len, updates);
 445                 }
 446             }
 447             if (ship.shp_autonav & AN_SCUTTLE)
 448                 pr(" (scuttling)");
 449             pr("\n");
 450         } else
 451             pr(" has a sail path\n");
 452
 453         if (ship.shp_name[0] != 0) {
 454             if (player->god)
 455                 pr("    ");
 456             pr("       %s\n", ship.shp_name);
 457         }
 458     }
 459     if (!nships) {
 460         if (player->argp[1])
 461             pr("%s: No ship(s)\n", player->argp[1]);
 462         else
 463             pr("%s: No ship(s)\n", "");
 464         return RET_FAIL;
 465     } else
 466         pr("%d ship%s\n", nships, splur(nships));
 467     return RET_OK;
 468 }