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) 1986-2008, 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 orders, 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             orders = 0;
 125             scuttling = 0;
 126             /* Need location */
 127             if ((p = getstarg(player->argp[3], "Destination? ", buf)) == 0
 128                 || *p == 0)
 129                 return RET_SYN;
 130             if (!sarg_xy(p, &p0x, &p0y))
 131                 return RET_SYN;
 132             p1x = p0x;
 133             p1y = p0y;
 134
 135
 136
 137             if (!orders) {
 138                 p = getstarg(player->argp[4], "Second dest? ", buf);
 139                 if (!p)
 140                     return RET_FAIL;
 141                 if (!*p || !strcmp(p, "-")) {
 142                     orders = 1;
 143                     pr("A one-way order has been accepted.\n");
 144                 } else if (!strncmp(p, "s", 1)) {
 145                     if (opt_TRADESHIPS) {
 146                         if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 147                             pr("You can't auto-scuttle that ship!\n");
 148                             return RET_SYN;
 149                         }
 150                     } else {
 151                         pr("You can't auto-scuttle that ship!\n");
 152                         return RET_SYN;
 153                     }
 154                     pr("A scuttle order has been accepted.\n");
 155                     scuttling = 1;
 156                 } else {
 157                     if (!sarg_xy(p, &p1x, &p1y))
 158                         return RET_SYN;
 159                     pr("A circular order has been accepted.\n");
 160                 }
 161             }
 162
 163             /*
 164              *  Set new destination and trade type fields.
 165              */
 166             ship.shp_mission = 0;
 167             ship.shp_destx[1] = p1x;
 168             ship.shp_desty[1] = p1y;
 169             ship.shp_destx[0] = p0x;
 170             ship.shp_desty[0] = p0y;
 171
 172             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 173             ship.shp_autonav |= AN_AUTONAV;
 174
 175             if (scuttling)
 176                 ship.shp_autonav |= AN_SCUTTLE;
 177             break;
 178
 179             /* set cargo levels on the ship */
 180
 181         case 'l':
 182             /* convert player->argp[3] to an integer */
 183             if (player->argp[3])
 184                 sub = atoi(player->argp[3]);
 185             else {
 186                 sprintf(buf1, "Field (1-%d) ", TMAX);
 187                 if (getstarg(player->argp[3], buf1, buf) == 0)
 188                     return RET_SYN;
 189                 sub = atoi(buf);
 190             }
 191             /* check to make sure value in within range. */
 192             if (sub > TMAX || sub < 1) {
 193                 pr("Value must range from 1 to %d\n", TMAX);
 194                 break;
 195             }
 196
 197             /* to keep sub in range of our arrays
 198                subtract 1 so the new range is 0-(TMAX-1)
 199              */
 200             sub = sub - 1;;
 201
 202             if (ship.shp_autonav & AN_AUTONAV) {
 203                 orders = 1;
 204                 dest = getstarg(player->argp[4], "Start or End? ", buf);
 205                 if (orders) {   /* before dest check */
 206                     if (!dest)
 207                         break;
 208                     switch (*dest) {
 209                     default:
 210                         pr("You must enter 'start' or 'end'\n");
 211                         return RET_SYN;
 212                     case 'e':
 213                     case 'E':
 214                         i1 = whatitem(player->argp[5], "Commodity? ");
 215                         if (!i1)
 216                             break;
 217                         else {
 218                             p1 = getstarg(player->argp[6], "Amount? ",
 219                                           buf);
 220                             if (!p1)
 221                                 return RET_SYN;
 222                             level = atoi(p1);
 223                         }
 224                         if (level < 0) {
 225                             level = 0;  /* prevent negatives. */
 226                             pr("You must use positive number! Level set to 0.\n");
 227                         }
 228                         ship.shp_tstart[sub] = i1->i_uid;
 229                         ship.shp_lstart[sub] = level;
 230                         pr("Order Set \n");
 231                         break;
 232                     case 's':
 233                     case 'S':
 234                         i1 = whatitem(player->argp[5], "Commodity? ");
 235                         if (!i1)
 236                             break;
 237                         else {
 238                             p1 = getstarg(player->argp[6], "Amount? ",
 239                                           buf);
 240                             if (!p1)
 241                                 return RET_SYN;
 242                             level = atoi(p1);
 243                         }
 244                         if (level < 0) {
 245                             level = 0;
 246                             pr("You must use positive number! Level set to 0.\n");
 247                         }
 248                         ship.shp_tend[sub] = i1->i_uid;
 249                         ship.shp_lend[sub] = level;
 250                         pr("Order Set \n");
 251                         break;
 252                     }
 253                 }
 254             } else
 255                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 256
 257             break;
 258         }                       /* end of switch (*p) */
 259
 260
 261
 262         /*
 263          *  Set loading flag if ship is already in one
 264          *  of the specified harbors and a cargo has been
 265          *  specified.
 266          */
 267
 268         if (((ship.shp_x == ship.shp_destx[0])
 269              && (ship.shp_y == ship.shp_desty[0])
 270              && (ship.shp_lstart[0] != ' '))
 271             || ((ship.shp_x == ship.shp_desty[1])
 272                 && (ship.shp_y == ship.shp_desty[1])
 273                 && (ship.shp_lstart[1] != ' '))) {
 274
 275             coord tcord;
 276             i_type tcomm;
 277             short lev[TMAX];
 278             int i;
 279
 280             ship.shp_autonav |= AN_LOADING;
 281
 282             /*  swap variables, this keeps
 283                the load_it() procedure happy. CZ
 284              */
 285             tcord = ship.shp_destx[0];
 286             ship.shp_destx[0] = ship.shp_destx[1];
 287             ship.shp_destx[1] = tcord;
 288             tcord = ship.shp_desty[0];
 289             ship.shp_desty[0] = ship.shp_desty[1];
 290             ship.shp_desty[1] = tcord;
 291
 292             for (i = 0; i < TMAX; i++) {
 293                 lev[i] = ship.shp_lstart[i];
 294                 ship.shp_lstart[i] = ship.shp_lend[i];
 295                 ship.shp_lend[i] = lev[i];
 296                 tcomm = ship.shp_tstart[i];
 297                 ship.shp_tstart[i] = ship.shp_tend[i];
 298                 ship.shp_tend[i] = tcomm;
 299             }
 300         }
 301         /*
 302            **  Write ship back to database, then give it
 303            **  a kick down the autonav route if necessary.
 304          */
 305
 306
 307         /* Now do a sanity check. */
 308         if (!check_ship_ok(&start))
 309             return RET_SYN;
 310
 311         putship(ship.shp_uid, &ship);
 312     }
 313     return RET_OK;
 314 }
 315
 316 static void
 317 eta_calc(struct shpstr *sp, char *path, int *len, int *nupdates)
 318 {
 319     double mobcost, mobil;
 320     int i;
 321
 322     i = strlen(path);
 323     *len = i;
 324     *nupdates = 1;
 325
 326     mobcost = shp_mobcost(sp);
 327     mobil = sp->shp_mobil;
 328     while (i) {
 329         if (mobil > 0) {
 330             mobil -= mobcost;
 331             i--;
 332         } else {
 333             mobil += (ship_mob_scale * (float)etu_per_update);
 334             (*nupdates)++;
 335         }
 336     }
 337 }
 338
 339 static void
 340 prhold(int hold, i_type itype, int amt)
 341 {
 342     if (itype != I_NONE && amt != 0) {
 343         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 344             return;
 345         pr("%d-", hold + 1);
 346         pr("%c", ichr[itype].i_mnem);
 347         pr(":");
 348         pr("%d ", amt);
 349     }
 350 }
 351
 352 int
 353 qorde(void)
 354 {
 355     int nships = 0;
 356     int i;
 357     struct nstr_item nb;
 358     struct shpstr ship;
 359
 360     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 361         return RET_SYN;
 362     while (nxtitem(&nb, (&ship))) {
 363         if (!player->owner || ship.shp_own == 0)
 364             continue;
 365         if (!(ship.shp_autonav & AN_AUTONAV)
 366             && (!opt_SAIL || !ship.shp_path[0]))
 367             continue;
 368
 369         if (!nships) {          /* 1st ship, print banner */
 370             if (player->god)
 371                 pr("own ");
 372             pr("shp#     ship type    ");
 373             pr("[Starting]       (Ending)    \n");
 374         }
 375         nships++;
 376         if (player->god)
 377             pr("%3d ", ship.shp_own);
 378         pr("%4d", nb.cur);
 379         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 380
 381         if (ship.shp_autonav & AN_AUTONAV) {
 382             pr(" [");
 383             for (i = 0; i < TMAX; i++)
 384                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 385             pr("] , (");
 386             for (i = 0; i < TMAX; i++)
 387                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 388             pr(")");
 389             if (ship.shp_autonav & AN_SCUTTLE)
 390                 pr(" scuttling");
 391             pr("\n");
 392         } else
 393             pr(" has a sail path\n");
 394
 395         if (ship.shp_name[0] != 0) {
 396             if (player->god)
 397                 pr("    ");
 398             pr("       %s\n", ship.shp_name);
 399         }
 400     }
 401     if (!nships) {
 402         if (player->argp[1])
 403             pr("%s: No ship(s)\n", player->argp[1]);
 404         else
 405             pr("%s: No ship(s)\n", "");
 406         return RET_FAIL;
 407     } else
 408         pr("%d ship%s\n", nships, splur(nships));
 409     return RET_OK;
 410 }
 411
 412 int
 413 sorde(void)
 414 {
 415     int nships = 0;
 416     int len, updates;
 417     char *c;
 418     struct nstr_item nb;
 419     struct shpstr ship;
 420     char buf[1024];
 421
 422     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 423         return RET_SYN;
 424     while (nxtitem(&nb, (&ship))) {
 425         if (!player->owner || ship.shp_own == 0)
 426             continue;
 427         if (!(ship.shp_autonav & AN_AUTONAV)
 428             && (!opt_SAIL || !ship.shp_path[0]))
 429             continue;
 430
 431         if (!nships) {          /* 1st ship, print banner */
 432             if (player->god)
 433                 pr("own ");
 434             pr("shp#     ship type      x,y    ");
 435             pr("start    end   ");
 436             pr("len  eta\n");
 437         }
 438         nships++;
 439         if (player->god)
 440             pr("%3d ", ship.shp_own);
 441         pr("%4d", nb.cur);
 442         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 443         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 444
 445         if (ship.shp_autonav & AN_AUTONAV) {
 446             /* Destination 1 */
 447             prxy(" %3d,%-3d",
 448                  ship.shp_destx[1], ship.shp_desty[1], player->cnum);
 449
 450             /* Destination 2 */
 451             if ((ship.shp_destx[1] != ship.shp_destx[0])
 452                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 453                 prxy(" %3d,%-3d",
 454                      ship.shp_destx[0], ship.shp_desty[0], player->cnum);
 455             } else
 456                 pr("        ");
 457
 458             if (ship.shp_autonav & AN_STANDBY)
 459                 pr(" suspended");
 460             else if (ship.shp_autonav & AN_LOADING)
 461                 pr(" loading");
 462             else {
 463                 /* ETA calculation */
 464
 465                 c = BestShipPath(buf, ship.shp_x, ship.shp_y,
 466                                  ship.shp_destx[0], ship.shp_desty[0],
 467                                  ship.shp_own);
 468                 if (!c)
 469                     pr(" no route possible");
 470                 else if (*c == 'h')
 471                     pr(" has arrived");
 472                 else {
 473                     /* distance to destination */
 474                     eta_calc(&ship, c, &len, &updates);
 475                     pr(" %3d %4d", len, updates);
 476                 }
 477             }
 478             if (ship.shp_autonav & AN_SCUTTLE)
 479                 pr(" (scuttling)");
 480             pr("\n");
 481         } else
 482             pr(" has a sail path\n");
 483
 484         if (ship.shp_name[0] != 0) {
 485             if (player->god)
 486                 pr("    ");
 487             pr("       %s\n", ship.shp_name);
 488         }
 489     }
 490     if (!nships) {
 491         if (player->argp[1])
 492             pr("%s: No ship(s)\n", player->argp[1]);
 493         else
 494             pr("%s: No ship(s)\n", "");
 495         return RET_FAIL;
 496     } else
 497         pr("%d ship%s\n", nships, splur(nships));
 498     return RET_OK;
 499 }