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) 1986-2010, 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 "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 shpstr start;        /* Used for checking database */
  67     struct ichrstr *i1;
  68     coord p0x, p0y, p1x, p1y;
  69     int i;
  70     char *p, *p1, *dest;
  71     char buf1[128];
  72     char buf[1024];
  73     char prompt[128];
  74
  75     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
  76         return RET_SYN;
  77     while (!player->aborted && nxtitem(&nb, (&ship))) {
  78         if (!player->owner || ship.shp_own == 0)
  79             continue;
  80         if (opt_SAIL) {
  81             if (*ship.shp_path) {
  82                 pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  83                 continue;
  84             }
  85         }
  86         memcpy(&start, &ship, sizeof(struct shpstr));
  87         sprintf(prompt,
  88                 "Ship #%d, declare, cancel, suspend, resume, level? ",
  89                 ship.shp_uid);
  90         p = getstarg(player->argp[2], prompt, buf);
  91         if (player->aborted || !p || !*p)
  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 (!*p || !strcmp(p, "-")) {
 130                 pr("A one-way order has been accepted.\n");
 131             } else if (!strncmp(p, "s", 1)) {
 132                 if (opt_TRADESHIPS) {
 133                     if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 134                         pr("You can't auto-scuttle that ship!\n");
 135                         return RET_SYN;
 136                     }
 137                 } else {
 138                     pr("You can't auto-scuttle that ship!\n");
 139                     return RET_SYN;
 140                 }
 141                 pr("A scuttle order has been accepted.\n");
 142                 scuttling = 1;
 143             } else {
 144                 if (!sarg_xy(p, &p1x, &p1y))
 145                     return RET_SYN;
 146                 pr("A circular order has been accepted.\n");
 147             }
 148
 149             /*
 150              *  Set new destination and trade type fields.
 151              */
 152             ship.shp_mission = 0;
 153             ship.shp_destx[1] = p1x;
 154             ship.shp_desty[1] = p1y;
 155             ship.shp_destx[0] = p0x;
 156             ship.shp_desty[0] = p0y;
 157
 158             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 159             ship.shp_autonav |= AN_AUTONAV;
 160
 161             if (scuttling)
 162                 ship.shp_autonav |= AN_SCUTTLE;
 163             break;
 164
 165             /* set cargo levels on the ship */
 166
 167         case 'l':
 168             /* convert player->argp[3] to an integer */
 169             if (player->argp[3])
 170                 sub = atoi(player->argp[3]);
 171             else {
 172                 sprintf(buf1, "Field (1-%d) ", TMAX);
 173                 if (!getstarg(player->argp[3], buf1, buf))
 174                     return RET_SYN;
 175                 sub = atoi(buf);
 176             }
 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                 break;
 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                     break;
 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                         break;
 201                     p1 = getstarg(player->argp[6], "Amount? ",
 202                                   buf);
 203                     if (!p1)
 204                         return RET_SYN;
 205                     level = atoi(p1);
 206                     if (level < 0) {
 207                         level = 0;      /* prevent negatives. */
 208                         pr("You must use positive number! Level set to 0.\n");
 209                     }
 210                     ship.shp_tstart[sub] = i1->i_uid;
 211                     ship.shp_lstart[sub] = level;
 212                     pr("Order Set \n");
 213                     break;
 214                 case 's':
 215                 case 'S':
 216                     i1 = whatitem(player->argp[5], "Commodity? ");
 217                     if (!i1)
 218                         break;
 219                     p1 = getstarg(player->argp[6], "Amount? ",
 220                                   buf);
 221                     if (!p1)
 222                         return RET_SYN;
 223                     level = atoi(p1);
 224                     if (level < 0) {
 225                         level = 0;
 226                         pr("You must use positive number! Level set to 0.\n");
 227                     }
 228                     ship.shp_tend[sub] = i1->i_uid;
 229                     ship.shp_lend[sub] = level;
 230                     pr("Order Set \n");
 231                     break;
 232                 }
 233             } else
 234                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 235
 236             break;
 237         }                       /* end of switch (*p) */
 238
 239
 240
 241         /*
 242          *  Set loading flag if ship is already in one
 243          *  of the specified harbors and a cargo has been
 244          *  specified.
 245          */
 246
 247         if (((ship.shp_x == ship.shp_destx[0])
 248              && (ship.shp_y == ship.shp_desty[0])
 249              && (ship.shp_lstart[0] != ' '))
 250             || ((ship.shp_x == ship.shp_desty[1])
 251                 && (ship.shp_y == ship.shp_desty[1])
 252                 && (ship.shp_lstart[1] != ' '))) {
 253
 254             coord tcord;
 255             i_type tcomm;
 256             short lev[TMAX];
 257             int i;
 258
 259             ship.shp_autonav |= AN_LOADING;
 260
 261             /*  swap variables, this keeps
 262                the load_it() procedure happy. CZ
 263              */
 264             tcord = ship.shp_destx[0];
 265             ship.shp_destx[0] = ship.shp_destx[1];
 266             ship.shp_destx[1] = tcord;
 267             tcord = ship.shp_desty[0];
 268             ship.shp_desty[0] = ship.shp_desty[1];
 269             ship.shp_desty[1] = tcord;
 270
 271             for (i = 0; i < TMAX; i++) {
 272                 lev[i] = ship.shp_lstart[i];
 273                 ship.shp_lstart[i] = ship.shp_lend[i];
 274                 ship.shp_lend[i] = lev[i];
 275                 tcomm = ship.shp_tstart[i];
 276                 ship.shp_tstart[i] = ship.shp_tend[i];
 277                 ship.shp_tend[i] = tcomm;
 278             }
 279         }
 280         /*
 281            **  Write ship back to database, then give it
 282            **  a kick down the autonav route if necessary.
 283          */
 284
 285
 286         /* Now do a sanity check. */
 287         if (!check_ship_ok(&start))
 288             return RET_SYN;
 289
 290         putship(ship.shp_uid, &ship);
 291     }
 292     return RET_OK;
 293 }
 294
 295 static void
 296 eta_calc(struct shpstr *sp, char *path, int *len, int *nupdates)
 297 {
 298     double mobcost, mobil;
 299     int i;
 300
 301     i = strlen(path);
 302     *len = i;
 303     *nupdates = 1;
 304
 305     mobcost = shp_mobcost(sp);
 306     mobil = sp->shp_mobil;
 307     while (i) {
 308         if (mobil > 0) {
 309             mobil -= mobcost;
 310             i--;
 311         } else {
 312             mobil += (ship_mob_scale * (float)etu_per_update);
 313             (*nupdates)++;
 314         }
 315     }
 316 }
 317
 318 static void
 319 prhold(int hold, i_type itype, int amt)
 320 {
 321     if (itype != I_NONE && amt != 0) {
 322         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 323             return;
 324         pr("%d-", hold + 1);
 325         pr("%c", ichr[itype].i_mnem);
 326         pr(":");
 327         pr("%d ", amt);
 328     }
 329 }
 330
 331 int
 332 qorde(void)
 333 {
 334     int nships = 0;
 335     int i;
 336     struct nstr_item nb;
 337     struct shpstr ship;
 338
 339     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 340         return RET_SYN;
 341     while (nxtitem(&nb, (&ship))) {
 342         if (!player->owner || ship.shp_own == 0)
 343             continue;
 344         if (!(ship.shp_autonav & AN_AUTONAV)
 345             && (!opt_SAIL || !ship.shp_path[0]))
 346             continue;
 347
 348         if (!nships) {          /* 1st ship, print banner */
 349             if (player->god)
 350                 pr("own ");
 351             pr("shp#     ship type    ");
 352             pr("[Starting]       (Ending)    \n");
 353         }
 354         nships++;
 355         if (player->god)
 356             pr("%3d ", ship.shp_own);
 357         pr("%4d", nb.cur);
 358         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 359
 360         if (ship.shp_autonav & AN_AUTONAV) {
 361             pr(" [");
 362             for (i = 0; i < TMAX; i++)
 363                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 364             pr("] , (");
 365             for (i = 0; i < TMAX; i++)
 366                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 367             pr(")");
 368             if (ship.shp_autonav & AN_SCUTTLE)
 369                 pr(" scuttling");
 370             pr("\n");
 371         } else
 372             pr(" has a sail path\n");
 373
 374         if (ship.shp_name[0] != 0) {
 375             if (player->god)
 376                 pr("    ");
 377             pr("       %s\n", ship.shp_name);
 378         }
 379     }
 380     if (!nships) {
 381         if (player->argp[1])
 382             pr("%s: No ship(s)\n", player->argp[1]);
 383         else
 384             pr("%s: No ship(s)\n", "");
 385         return RET_FAIL;
 386     } else
 387         pr("%d ship%s\n", nships, splur(nships));
 388     return RET_OK;
 389 }
 390
 391 int
 392 sorde(void)
 393 {
 394     int nships = 0;
 395     int len, updates;
 396     char *c;
 397     struct nstr_item nb;
 398     struct shpstr ship;
 399     char buf[1024];
 400
 401     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 402         return RET_SYN;
 403     while (nxtitem(&nb, (&ship))) {
 404         if (!player->owner || ship.shp_own == 0)
 405             continue;
 406         if (!(ship.shp_autonav & AN_AUTONAV)
 407             && (!opt_SAIL || !ship.shp_path[0]))
 408             continue;
 409
 410         if (!nships) {          /* 1st ship, print banner */
 411             if (player->god)
 412                 pr("own ");
 413             pr("shp#     ship type      x,y    ");
 414             pr("start    end   ");
 415             pr("len  eta\n");
 416         }
 417         nships++;
 418         if (player->god)
 419             pr("%3d ", ship.shp_own);
 420         pr("%4d", nb.cur);
 421         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 422         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 423
 424         if (ship.shp_autonav & AN_AUTONAV) {
 425             /* Destination 1 */
 426             prxy(" %3d,%-3d",
 427                  ship.shp_destx[1], ship.shp_desty[1], player->cnum);
 428
 429             /* Destination 2 */
 430             if ((ship.shp_destx[1] != ship.shp_destx[0])
 431                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 432                 prxy(" %3d,%-3d",
 433                      ship.shp_destx[0], ship.shp_desty[0], player->cnum);
 434             } else
 435                 pr("        ");
 436
 437             if (ship.shp_autonav & AN_STANDBY)
 438                 pr(" suspended");
 439             else if (ship.shp_autonav & AN_LOADING)
 440                 pr(" loading");
 441             else {
 442                 /* ETA calculation */
 443
 444                 c = BestShipPath(buf, ship.shp_x, ship.shp_y,
 445                                  ship.shp_destx[0], ship.shp_desty[0],
 446                                  ship.shp_own);
 447                 if (!c)
 448                     pr(" no route possible");
 449                 else if (*c == 'h')
 450                     pr(" has arrived");
 451                 else {
 452                     /* distance to destination */
 453                     eta_calc(&ship, c, &len, &updates);
 454                     pr(" %3d %4d", len, updates);
 455                 }
 456             }
 457             if (ship.shp_autonav & AN_SCUTTLE)
 458                 pr(" (scuttling)");
 459             pr("\n");
 460         } else
 461             pr(" has a sail path\n");
 462
 463         if (ship.shp_name[0] != 0) {
 464             if (player->god)
 465                 pr("    ");
 466             pr("       %s\n", ship.shp_name);
 467         }
 468     }
 469     if (!nships) {
 470         if (player->argp[1])
 471             pr("%s: No ship(s)\n", player->argp[1]);
 472         else
 473             pr("%s: No ship(s)\n", "");
 474         return RET_FAIL;
 475     } else
 476         pr("%d ship%s\n", nships, splur(nships));
 477     return RET_OK;
 478 }