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 diffeachship = 0;
  63     int sub, level;
  64     int scuttling = 0;
  65     struct nstr_item nb;
  66     struct shpstr ship;
  67     struct shpstr start;        /* Used for checking database */
  68     struct ichrstr *i1;
  69     coord p0x, p0y, p1x, p1y;
  70     int i;
  71     char *p, *p1, *dest;
  72     char buf1[128];
  73     char buf[1024];
  74     char prompt[128];
  75
  76     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
  77         return RET_SYN;
  78     while (!player->aborted && nxtitem(&nb, (&ship))) {
  79         if (!player->owner || ship.shp_own == 0)
  80             continue;
  81         if (opt_SAIL) {
  82             if (*ship.shp_path) {
  83                 if (!diffeachship)
  84                     pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  85                 continue;
  86             }
  87         }
  88         memcpy(&start, &ship, sizeof(struct shpstr));
  89         sprintf(prompt,
  90                 "Ship #%d, declare, cancel, suspend, resume, level? ",
  91                 ship.shp_uid);
  92         p = getstarg(player->argp[2], prompt, buf);
  93         if (player->aborted || !p)
  94             return RET_FAIL;
  95         if (!*p) {
  96             if (!diffeachship)
  97                 return RET_FAIL;
  98             else
  99                 continue;
 100         }
 101         switch (*p) {
 102         default:
 103             pr("Bad order type!\n");
 104             return RET_SYN;
 105         case 'c':               /* clear ship fields  */
 106             ship.shp_mission = 0;
 107             ship.shp_autonav &= ~(AN_AUTONAV + AN_STANDBY + AN_LOADING);
 108             for (i = 0; i < TMAX; i++) {
 109                 ship.shp_tstart[i] = I_NONE;
 110                 ship.shp_tend[i] = I_NONE;
 111                 ship.shp_lstart[i] = 0;
 112                 ship.shp_lend[i] = 0;
 113             }
 114             break;
 115         case 's':               /* suspend ship movement  */
 116             ship.shp_mission = 0;
 117             ship.shp_autonav |= AN_STANDBY;
 118             break;
 119         case 'r':               /* resume ship movement   */
 120             ship.shp_mission = 0;
 121             ship.shp_autonav &= ~AN_STANDBY;
 122             break;
 123         case 'd':               /* declare path */
 124             scuttling = 0;
 125             /* Need location */
 126             p = getstarg(player->argp[3], "Destination? ", buf);
 127             if (!p || !*p)
 128                 return RET_SYN;
 129             if (!sarg_xy(p, &p0x, &p0y))
 130                 return RET_SYN;
 131             p1x = p0x;
 132             p1y = p0y;
 133
 134             p = getstarg(player->argp[4], "Second dest? ", buf);
 135             if (!p)
 136                 return RET_FAIL;
 137             if (!*p || !strcmp(p, "-")) {
 138                 pr("A one-way order has been accepted.\n");
 139             } else if (!strncmp(p, "s", 1)) {
 140                 if (opt_TRADESHIPS) {
 141                     if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 142                         pr("You can't auto-scuttle that ship!\n");
 143                         return RET_SYN;
 144                     }
 145                 } else {
 146                     pr("You can't auto-scuttle that ship!\n");
 147                     return RET_SYN;
 148                 }
 149                 pr("A scuttle order has been accepted.\n");
 150                 scuttling = 1;
 151             } else {
 152                 if (!sarg_xy(p, &p1x, &p1y))
 153                     return RET_SYN;
 154                 pr("A circular order has been accepted.\n");
 155             }
 156
 157             /*
 158              *  Set new destination and trade type fields.
 159              */
 160             ship.shp_mission = 0;
 161             ship.shp_destx[1] = p1x;
 162             ship.shp_desty[1] = p1y;
 163             ship.shp_destx[0] = p0x;
 164             ship.shp_desty[0] = p0y;
 165
 166             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 167             ship.shp_autonav |= AN_AUTONAV;
 168
 169             if (scuttling)
 170                 ship.shp_autonav |= AN_SCUTTLE;
 171             break;
 172
 173             /* set cargo levels on the ship */
 174
 175         case 'l':
 176             /* convert player->argp[3] to an integer */
 177             if (player->argp[3])
 178                 sub = atoi(player->argp[3]);
 179             else {
 180                 sprintf(buf1, "Field (1-%d) ", TMAX);
 181                 if (!getstarg(player->argp[3], buf1, buf))
 182                     return RET_SYN;
 183                 sub = atoi(buf);
 184             }
 185             /* check to make sure value in within range. */
 186             if (sub > TMAX || sub < 1) {
 187                 pr("Value must range from 1 to %d\n", TMAX);
 188                 break;
 189             }
 190
 191             /* to keep sub in range of our arrays
 192                subtract 1 so the new range is 0-(TMAX-1)
 193              */
 194             sub = sub - 1;;
 195
 196             if (ship.shp_autonav & AN_AUTONAV) {
 197                 dest = getstarg(player->argp[4], "Start or End? ", buf);
 198                 if (!dest)
 199                     break;
 200                 switch (*dest) {
 201                 default:
 202                     pr("You must enter 'start' or 'end'\n");
 203                     return RET_SYN;
 204                 case 'e':
 205                 case 'E':
 206                     i1 = whatitem(player->argp[5], "Commodity? ");
 207                     if (!i1)
 208                         break;
 209                     else {
 210                         p1 = getstarg(player->argp[6], "Amount? ",
 211                                       buf);
 212                         if (!p1)
 213                             return RET_SYN;
 214                         level = atoi(p1);
 215                     }
 216                     if (level < 0) {
 217                         level = 0;      /* prevent negatives. */
 218                         pr("You must use positive number! Level set to 0.\n");
 219                     }
 220                     ship.shp_tstart[sub] = i1->i_uid;
 221                     ship.shp_lstart[sub] = level;
 222                     pr("Order Set \n");
 223                     break;
 224                 case 's':
 225                 case 'S':
 226                     i1 = whatitem(player->argp[5], "Commodity? ");
 227                     if (!i1)
 228                         break;
 229                     else {
 230                         p1 = getstarg(player->argp[6], "Amount? ",
 231                                       buf);
 232                         if (!p1)
 233                             return RET_SYN;
 234                         level = atoi(p1);
 235                     }
 236                     if (level < 0) {
 237                         level = 0;
 238                         pr("You must use positive number! Level set to 0.\n");
 239                     }
 240                     ship.shp_tend[sub] = i1->i_uid;
 241                     ship.shp_lend[sub] = level;
 242                     pr("Order Set \n");
 243                     break;
 244                 }
 245             } else
 246                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 247
 248             break;
 249         }                       /* end of switch (*p) */
 250
 251
 252
 253         /*
 254          *  Set loading flag if ship is already in one
 255          *  of the specified harbors and a cargo has been
 256          *  specified.
 257          */
 258
 259         if (((ship.shp_x == ship.shp_destx[0])
 260              && (ship.shp_y == ship.shp_desty[0])
 261              && (ship.shp_lstart[0] != ' '))
 262             || ((ship.shp_x == ship.shp_desty[1])
 263                 && (ship.shp_y == ship.shp_desty[1])
 264                 && (ship.shp_lstart[1] != ' '))) {
 265
 266             coord tcord;
 267             i_type tcomm;
 268             short lev[TMAX];
 269             int i;
 270
 271             ship.shp_autonav |= AN_LOADING;
 272
 273             /*  swap variables, this keeps
 274                the load_it() procedure happy. CZ
 275              */
 276             tcord = ship.shp_destx[0];
 277             ship.shp_destx[0] = ship.shp_destx[1];
 278             ship.shp_destx[1] = tcord;
 279             tcord = ship.shp_desty[0];
 280             ship.shp_desty[0] = ship.shp_desty[1];
 281             ship.shp_desty[1] = tcord;
 282
 283             for (i = 0; i < TMAX; i++) {
 284                 lev[i] = ship.shp_lstart[i];
 285                 ship.shp_lstart[i] = ship.shp_lend[i];
 286                 ship.shp_lend[i] = lev[i];
 287                 tcomm = ship.shp_tstart[i];
 288                 ship.shp_tstart[i] = ship.shp_tend[i];
 289                 ship.shp_tend[i] = tcomm;
 290             }
 291         }
 292         /*
 293            **  Write ship back to database, then give it
 294            **  a kick down the autonav route if necessary.
 295          */
 296
 297
 298         /* Now do a sanity check. */
 299         if (!check_ship_ok(&start))
 300             return RET_SYN;
 301
 302         putship(ship.shp_uid, &ship);
 303     }
 304     return RET_OK;
 305 }
 306
 307 static void
 308 eta_calc(struct shpstr *sp, char *path, int *len, int *nupdates)
 309 {
 310     double mobcost, mobil;
 311     int i;
 312
 313     i = strlen(path);
 314     *len = i;
 315     *nupdates = 1;
 316
 317     mobcost = shp_mobcost(sp);
 318     mobil = sp->shp_mobil;
 319     while (i) {
 320         if (mobil > 0) {
 321             mobil -= mobcost;
 322             i--;
 323         } else {
 324             mobil += (ship_mob_scale * (float)etu_per_update);
 325             (*nupdates)++;
 326         }
 327     }
 328 }
 329
 330 static void
 331 prhold(int hold, i_type itype, int amt)
 332 {
 333     if (itype != I_NONE && amt != 0) {
 334         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 335             return;
 336         pr("%d-", hold + 1);
 337         pr("%c", ichr[itype].i_mnem);
 338         pr(":");
 339         pr("%d ", amt);
 340     }
 341 }
 342
 343 int
 344 qorde(void)
 345 {
 346     int nships = 0;
 347     int i;
 348     struct nstr_item nb;
 349     struct shpstr ship;
 350
 351     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 352         return RET_SYN;
 353     while (nxtitem(&nb, (&ship))) {
 354         if (!player->owner || ship.shp_own == 0)
 355             continue;
 356         if (!(ship.shp_autonav & AN_AUTONAV)
 357             && (!opt_SAIL || !ship.shp_path[0]))
 358             continue;
 359
 360         if (!nships) {          /* 1st ship, print banner */
 361             if (player->god)
 362                 pr("own ");
 363             pr("shp#     ship type    ");
 364             pr("[Starting]       (Ending)    \n");
 365         }
 366         nships++;
 367         if (player->god)
 368             pr("%3d ", ship.shp_own);
 369         pr("%4d", nb.cur);
 370         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 371
 372         if (ship.shp_autonav & AN_AUTONAV) {
 373             pr(" [");
 374             for (i = 0; i < TMAX; i++)
 375                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 376             pr("] , (");
 377             for (i = 0; i < TMAX; i++)
 378                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 379             pr(")");
 380             if (ship.shp_autonav & AN_SCUTTLE)
 381                 pr(" scuttling");
 382             pr("\n");
 383         } else
 384             pr(" has a sail path\n");
 385
 386         if (ship.shp_name[0] != 0) {
 387             if (player->god)
 388                 pr("    ");
 389             pr("       %s\n", ship.shp_name);
 390         }
 391     }
 392     if (!nships) {
 393         if (player->argp[1])
 394             pr("%s: No ship(s)\n", player->argp[1]);
 395         else
 396             pr("%s: No ship(s)\n", "");
 397         return RET_FAIL;
 398     } else
 399         pr("%d ship%s\n", nships, splur(nships));
 400     return RET_OK;
 401 }
 402
 403 int
 404 sorde(void)
 405 {
 406     int nships = 0;
 407     int len, updates;
 408     char *c;
 409     struct nstr_item nb;
 410     struct shpstr ship;
 411     char buf[1024];
 412
 413     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 414         return RET_SYN;
 415     while (nxtitem(&nb, (&ship))) {
 416         if (!player->owner || ship.shp_own == 0)
 417             continue;
 418         if (!(ship.shp_autonav & AN_AUTONAV)
 419             && (!opt_SAIL || !ship.shp_path[0]))
 420             continue;
 421
 422         if (!nships) {          /* 1st ship, print banner */
 423             if (player->god)
 424                 pr("own ");
 425             pr("shp#     ship type      x,y    ");
 426             pr("start    end   ");
 427             pr("len  eta\n");
 428         }
 429         nships++;
 430         if (player->god)
 431             pr("%3d ", ship.shp_own);
 432         pr("%4d", nb.cur);
 433         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 434         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 435
 436         if (ship.shp_autonav & AN_AUTONAV) {
 437             /* Destination 1 */
 438             prxy(" %3d,%-3d",
 439                  ship.shp_destx[1], ship.shp_desty[1], player->cnum);
 440
 441             /* Destination 2 */
 442             if ((ship.shp_destx[1] != ship.shp_destx[0])
 443                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 444                 prxy(" %3d,%-3d",
 445                      ship.shp_destx[0], ship.shp_desty[0], player->cnum);
 446             } else
 447                 pr("        ");
 448
 449             if (ship.shp_autonav & AN_STANDBY)
 450                 pr(" suspended");
 451             else if (ship.shp_autonav & AN_LOADING)
 452                 pr(" loading");
 453             else {
 454                 /* ETA calculation */
 455
 456                 c = BestShipPath(buf, ship.shp_x, ship.shp_y,
 457                                  ship.shp_destx[0], ship.shp_desty[0],
 458                                  ship.shp_own);
 459                 if (!c)
 460                     pr(" no route possible");
 461                 else if (*c == 'h')
 462                     pr(" has arrived");
 463                 else {
 464                     /* distance to destination */
 465                     eta_calc(&ship, c, &len, &updates);
 466                     pr(" %3d %4d", len, updates);
 467                 }
 468             }
 469             if (ship.shp_autonav & AN_SCUTTLE)
 470                 pr(" (scuttling)");
 471             pr("\n");
 472         } else
 473             pr(" has a sail path\n");
 474
 475         if (ship.shp_name[0] != 0) {
 476             if (player->god)
 477                 pr("    ");
 478             pr("       %s\n", ship.shp_name);
 479         }
 480     }
 481     if (!nships) {
 482         if (player->argp[1])
 483             pr("%s: No ship(s)\n", player->argp[1]);
 484         else
 485             pr("%s: No ship(s)\n", "");
 486         return RET_FAIL;
 487     } else
 488         pr("%d ship%s\n", nships, splur(nships));
 489     return RET_OK;
 490 }