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             sprintf(buf1, "Field (1-%d) ", TMAX);
 170             if (!getstarg(player->argp[3], buf1, buf))
 171                 return RET_SYN;
 172             sub = atoi(buf);
 173             /* check to make sure value in within range. */
 174             if (sub > TMAX || sub < 1) {
 175                 pr("Value must range from 1 to %d\n", TMAX);
 176                 return RET_FAIL;
 177             }
 178
 179             /* to keep sub in range of our arrays
 180                subtract 1 so the new range is 0-(TMAX-1)
 181              */
 182             sub = sub - 1;;
 183
 184             if (ship.shp_autonav & AN_AUTONAV) {
 185                 dest = getstarg(player->argp[4], "Start or End? ", buf);
 186                 if (!dest)
 187                     return RET_FAIL;
 188                 switch (*dest) {
 189                 default:
 190                     pr("You must enter 'start' or 'end'\n");
 191                     return RET_SYN;
 192                 case 'e':
 193                 case 'E':
 194                     i1 = whatitem(player->argp[5], "Commodity? ");
 195                     if (!i1)
 196                         return RET_FAIL;
 197                     p1 = getstarg(player->argp[6], "Amount? ",
 198                                   buf);
 199                     if (!p1)
 200                         return RET_SYN;
 201                     level = atoi(p1);
 202                     if (level < 0) {
 203                         level = 0;      /* prevent negatives. */
 204                         pr("You must use positive number! Level set to 0.\n");
 205                     }
 206                     ship.shp_tstart[sub] = i1->i_uid;
 207                     ship.shp_lstart[sub] = level;
 208                     pr("Order Set \n");
 209                     break;
 210                 case 's':
 211                 case 'S':
 212                     i1 = whatitem(player->argp[5], "Commodity? ");
 213                     if (!i1)
 214                         return RET_FAIL;
 215                     p1 = getstarg(player->argp[6], "Amount? ",
 216                                   buf);
 217                     if (!p1)
 218                         return RET_SYN;
 219                     level = atoi(p1);
 220                     if (level < 0) {
 221                         level = 0;
 222                         pr("You must use positive number! Level set to 0.\n");
 223                     }
 224                     ship.shp_tend[sub] = i1->i_uid;
 225                     ship.shp_lend[sub] = level;
 226                     pr("Order Set \n");
 227                     break;
 228                 }
 229             } else
 230                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 231
 232             break;
 233         }                       /* end of switch (*p) */
 234
 235
 236
 237         /*
 238          *  Set loading flag if ship is already in one
 239          *  of the specified harbors and a cargo has been
 240          *  specified.
 241          */
 242
 243         if (((ship.shp_x == ship.shp_destx[0])
 244              && (ship.shp_y == ship.shp_desty[0])
 245              && (ship.shp_lstart[0] != ' '))
 246             || ((ship.shp_x == ship.shp_desty[1])
 247                 && (ship.shp_y == ship.shp_desty[1])
 248                 && (ship.shp_lstart[1] != ' '))) {
 249
 250             coord tcord;
 251             i_type tcomm;
 252             short lev[TMAX];
 253             int i;
 254
 255             ship.shp_autonav |= AN_LOADING;
 256
 257             /*  swap variables, this keeps
 258                the load_it() procedure happy. CZ
 259              */
 260             tcord = ship.shp_destx[0];
 261             ship.shp_destx[0] = ship.shp_destx[1];
 262             ship.shp_destx[1] = tcord;
 263             tcord = ship.shp_desty[0];
 264             ship.shp_desty[0] = ship.shp_desty[1];
 265             ship.shp_desty[1] = tcord;
 266
 267             for (i = 0; i < TMAX; i++) {
 268                 lev[i] = ship.shp_lstart[i];
 269                 ship.shp_lstart[i] = ship.shp_lend[i];
 270                 ship.shp_lend[i] = lev[i];
 271                 tcomm = ship.shp_tstart[i];
 272                 ship.shp_tstart[i] = ship.shp_tend[i];
 273                 ship.shp_tend[i] = tcomm;
 274             }
 275         }
 276         /*
 277            **  Write ship back to database, then give it
 278            **  a kick down the autonav route if necessary.
 279          */
 280
 281
 282         /* Now do a sanity check. */
 283         if (!check_ship_ok(&start))
 284             return RET_SYN;
 285
 286         putship(ship.shp_uid, &ship);
 287     }
 288     return RET_OK;
 289 }
 290
 291 static void
 292 eta_calc(struct shpstr *sp, char *path, int *len, int *nupdates)
 293 {
 294     double mobcost, mobil;
 295     int i;
 296
 297     i = strlen(path);
 298     *len = i;
 299     *nupdates = 1;
 300
 301     mobcost = shp_mobcost(sp);
 302     mobil = sp->shp_mobil;
 303     while (i) {
 304         if (mobil > 0) {
 305             mobil -= mobcost;
 306             i--;
 307         } else {
 308             mobil += (ship_mob_scale * (float)etu_per_update);
 309             (*nupdates)++;
 310         }
 311     }
 312 }
 313
 314 static void
 315 prhold(int hold, i_type itype, int amt)
 316 {
 317     if (itype != I_NONE && amt != 0) {
 318         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 319             return;
 320         pr("%d-", hold + 1);
 321         pr("%c", ichr[itype].i_mnem);
 322         pr(":");
 323         pr("%d ", amt);
 324     }
 325 }
 326
 327 int
 328 qorde(void)
 329 {
 330     int nships = 0;
 331     int i;
 332     struct nstr_item nb;
 333     struct shpstr ship;
 334
 335     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 336         return RET_SYN;
 337     while (nxtitem(&nb, (&ship))) {
 338         if (!player->owner || ship.shp_own == 0)
 339             continue;
 340         if (!(ship.shp_autonav & AN_AUTONAV)
 341             && (!opt_SAIL || !ship.shp_path[0]))
 342             continue;
 343
 344         if (!nships) {          /* 1st ship, print banner */
 345             if (player->god)
 346                 pr("own ");
 347             pr("shp#     ship type    ");
 348             pr("[Starting]       (Ending)    \n");
 349         }
 350         nships++;
 351         if (player->god)
 352             pr("%3d ", ship.shp_own);
 353         pr("%4d", nb.cur);
 354         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 355
 356         if (ship.shp_autonav & AN_AUTONAV) {
 357             pr(" [");
 358             for (i = 0; i < TMAX; i++)
 359                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 360             pr("] , (");
 361             for (i = 0; i < TMAX; i++)
 362                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 363             pr(")");
 364             if (ship.shp_autonav & AN_SCUTTLE)
 365                 pr(" scuttling");
 366             pr("\n");
 367         } else
 368             pr(" has a sail path\n");
 369
 370         if (ship.shp_name[0] != 0) {
 371             if (player->god)
 372                 pr("    ");
 373             pr("       %s\n", ship.shp_name);
 374         }
 375     }
 376     if (!nships) {
 377         if (player->argp[1])
 378             pr("%s: No ship(s)\n", player->argp[1]);
 379         else
 380             pr("%s: No ship(s)\n", "");
 381         return RET_FAIL;
 382     } else
 383         pr("%d ship%s\n", nships, splur(nships));
 384     return RET_OK;
 385 }
 386
 387 int
 388 sorde(void)
 389 {
 390     int nships = 0;
 391     int len, updates;
 392     char *c;
 393     struct nstr_item nb;
 394     struct shpstr ship;
 395     char buf[1024];
 396
 397     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 398         return RET_SYN;
 399     while (nxtitem(&nb, (&ship))) {
 400         if (!player->owner || ship.shp_own == 0)
 401             continue;
 402         if (!(ship.shp_autonav & AN_AUTONAV)
 403             && (!opt_SAIL || !ship.shp_path[0]))
 404             continue;
 405
 406         if (!nships) {          /* 1st ship, print banner */
 407             if (player->god)
 408                 pr("own ");
 409             pr("shp#     ship type      x,y    ");
 410             pr("start    end   ");
 411             pr("len  eta\n");
 412         }
 413         nships++;
 414         if (player->god)
 415             pr("%3d ", ship.shp_own);
 416         pr("%4d", nb.cur);
 417         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 418         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 419
 420         if (ship.shp_autonav & AN_AUTONAV) {
 421             /* Destination 1 */
 422             prxy(" %3d,%-3d",
 423                  ship.shp_destx[1], ship.shp_desty[1], player->cnum);
 424
 425             /* Destination 2 */
 426             if ((ship.shp_destx[1] != ship.shp_destx[0])
 427                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 428                 prxy(" %3d,%-3d",
 429                      ship.shp_destx[0], ship.shp_desty[0], player->cnum);
 430             } else
 431                 pr("        ");
 432
 433             if (ship.shp_autonav & AN_STANDBY)
 434                 pr(" suspended");
 435             else if (ship.shp_autonav & AN_LOADING)
 436                 pr(" loading");
 437             else {
 438                 /* ETA calculation */
 439
 440                 c = BestShipPath(buf, ship.shp_x, ship.shp_y,
 441                                  ship.shp_destx[0], ship.shp_desty[0],
 442                                  ship.shp_own);
 443                 if (!c)
 444                     pr(" no route possible");
 445                 else if (*c == 'h')
 446                     pr(" has arrived");
 447                 else {
 448                     /* distance to destination */
 449                     eta_calc(&ship, c, &len, &updates);
 450                     pr(" %3d %4d", len, updates);
 451                 }
 452             }
 453             if (ship.shp_autonav & AN_SCUTTLE)
 454                 pr(" (scuttling)");
 455             pr("\n");
 456         } else
 457             pr(" has a sail path\n");
 458
 459         if (ship.shp_name[0] != 0) {
 460             if (player->god)
 461                 pr("    ");
 462             pr("       %s\n", ship.shp_name);
 463         }
 464     }
 465     if (!nships) {
 466         if (player->argp[1])
 467             pr("%s: No ship(s)\n", player->argp[1]);
 468         else
 469             pr("%s: No ship(s)\n", "");
 470         return RET_FAIL;
 471     } else
 472         pr("%d ship%s\n", nships, splur(nships));
 473     return RET_OK;
 474 }