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) 1986-2006, 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
  23  *  related information and legal notices. It is expected that any future
  24  *  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 <string.h>
  38 #include <ctype.h>
  39 #include "misc.h"
  40 #include "player.h"
  41 #include "ship.h"
  42 #include "sect.h"
  43 #include "xy.h"
  44 #include "nsc.h"
  45 #include "nat.h"
  46 #include "path.h"
  47 #include "file.h"
  48 #include "item.h"
  49 #include "commands.h"
  50 #include "optlist.h"
  51
  52 /*
  53 **  Command syntax:
  54 **
  55 **  ORDER <ship>                                  Show orders
  56 **  ORDER <ship> c[ancel]                         Cancel orders
  57 **  ORDER <ship> s[top]                           Suspend orders
  58 **  ORDER <ship> r[esume]                         Resume orders
  59 **  ORDER <ship> d[eclare] <dest1>                Set destination
  60 **               d[eclare] <dest1> <dest2>
  61 **  ORDER <ship> l[evel]   <field> <start/end> <comm> <level>
  62 **
  63 **
  64 ** New syntax:
  65 **  qorder <ship>    display cargo levels
  66 **  sorder <ship>    display statistical info
  67  */
  68
  69 int
  70 orde(void)
  71 {
  72     int diffeachship = 0;
  73     int orders, sub, level;
  74     int scuttling = 0;
  75     struct nstr_item nb;
  76     struct shpstr ship;
  77     struct shpstr start;        /* Used for checking database */
  78     struct ichrstr *i1;
  79     coord p0x, p0y, p1x, p1y;
  80     int i;
  81     s_char *p, *p1, *dest;
  82     s_char buf1[128];
  83     s_char buf[1024];
  84     s_char prompt[128];
  85
  86     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
  87         return RET_SYN;
  88     while (!player->aborted && nxtitem(&nb, (&ship))) {
  89         if (!player->owner || ship.shp_own == 0)
  90             continue;
  91         if (opt_SAIL) {
  92             if (*ship.shp_path) {
  93                 if (!diffeachship)
  94                     pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  95                 continue;
  96             }
  97         }
  98         memcpy(&start, &ship, sizeof(struct shpstr));
  99         sprintf(prompt,
 100                 "Ship #%d, declare, cancel, suspend, resume, level? ",
 101                 ship.shp_uid);
 102         p = getstarg(player->argp[2], prompt, buf);
 103         if (player->aborted || !p)
 104             return RET_FAIL;
 105         if (!*p) {
 106             if (!diffeachship)
 107                 return RET_FAIL;
 108             else
 109                 continue;
 110         }
 111         switch (*p) {
 112         default:
 113             pr("Bad order type!\n");
 114             return RET_SYN;
 115         case 'c':               /* clear ship fields  */
 116             ship.shp_mission = 0;
 117             ship.shp_autonav &= ~(AN_AUTONAV + AN_STANDBY + AN_LOADING);
 118             for (i = 0; i < TMAX; i++) {
 119                 ship.shp_tstart[i] = I_NONE;
 120                 ship.shp_tend[i] = I_NONE;
 121                 ship.shp_lstart[i] = 0;
 122                 ship.shp_lend[i] = 0;
 123             }
 124             break;
 125         case 's':               /* suspend ship movement  */
 126             ship.shp_mission = 0;
 127             ship.shp_autonav |= AN_STANDBY;
 128             break;
 129         case 'r':               /* resume ship movement   */
 130             ship.shp_mission = 0;
 131             ship.shp_autonav &= ~AN_STANDBY;
 132             break;
 133         case 'd':               /* declare path */
 134             orders = 0;
 135             scuttling = 0;
 136             /* Need location */
 137             if ((p = getstarg(player->argp[3], "Destination? ", buf)) == 0
 138                 || *p == 0)
 139                 return RET_SYN;
 140             if (!sarg_xy(p, &p0x, &p0y))
 141                 return RET_SYN;
 142             p1x = p0x;
 143             p1y = p0y;
 144
 145
 146
 147             if (!orders) {
 148                 p = getstarg(player->argp[4], "Second dest? ", buf);
 149                 if (!p || !*p || !strcmp(p, "-")) {
 150                     orders = 1;
 151                     pr("A one-way order has been accepted.\n");
 152                 } else if (!strncmp(p, "s", 1)) {
 153                     if (opt_TRADESHIPS) {
 154                         if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 155                             pr("You can't auto-scuttle that ship!\n");
 156                             return RET_SYN;
 157                         }
 158                     } else {
 159                         pr("You can't auto-scuttle that ship!\n");
 160                         return RET_SYN;
 161                     }
 162                     pr("A scuttle order has been accepted.\n");
 163                     scuttling = 1;
 164                 } else {
 165                     if (!sarg_xy(p, &p1x, &p1y))
 166                         return RET_SYN;
 167                     pr("A circular order has been accepted.\n");
 168                 }
 169             }
 170
 171             /*
 172              *  Set new destination and trade type fields.
 173              */
 174             ship.shp_mission = 0;
 175             ship.shp_destx[1] = p1x;
 176             ship.shp_desty[1] = p1y;
 177             ship.shp_destx[0] = p0x;
 178             ship.shp_desty[0] = p0y;
 179
 180             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 181             ship.shp_autonav |= AN_AUTONAV;
 182
 183             if (scuttling)
 184                 ship.shp_autonav |= AN_SCUTTLE;
 185             break;
 186
 187             /* set cargo levels on the ship */
 188
 189         case 'l':
 190             /* convert player->argp[3] to an integer */
 191             if (player->argp[3])
 192                 sub = atoi(player->argp[3]);
 193             else {
 194                 sprintf(buf1, "Field (1-%d) ", TMAX);
 195                 if (getstarg(player->argp[3], buf1, buf) == 0)
 196                     return RET_SYN;
 197                 sub = atoi(buf);
 198             }
 199             /* check to make sure value in within range. */
 200             if (sub > TMAX || sub < 1) {
 201                 pr("Value must range from 1 to %d\n", TMAX);
 202                 break;
 203             }
 204
 205             /* to keep sub in range of our arrays
 206                subtract 1 so the new range is 0-(TMAX-1)
 207              */
 208             sub = sub - 1;;
 209
 210             if (ship.shp_autonav & AN_AUTONAV) {
 211                 orders = 1;
 212                 dest = getstarg(player->argp[4], "Start or End? ", buf);
 213                 if (orders) {   /* before dest check */
 214                     if (!dest)
 215                         break;
 216                     switch (*dest) {
 217                     default:
 218                         pr("You must enter 'start' or 'end'\n");
 219                         return RET_SYN;
 220                     case 'e':
 221                     case 'E':
 222                         i1 = whatitem(player->argp[5], "Commodity? ");
 223                         if (!i1)
 224                             break;
 225                         else {
 226                             p1 = getstarg(player->argp[6], "Amount? ",
 227                                           buf);
 228                             if (!p1)
 229                                 return RET_SYN;
 230                             level = atoi(p1);
 231                         }
 232                         if (level < 0) {
 233                             level = 0;  /* prevent negatives. */
 234                             pr("You must use positive number! Level set to 0.\n");
 235                         }
 236                         ship.shp_tstart[sub] = i1->i_vtype;
 237                         ship.shp_lstart[sub] = level;
 238                         pr("Order Set \n");
 239                         break;
 240                     case 's':
 241                     case 'S':
 242                         i1 = whatitem(player->argp[5], "Commodity? ");
 243                         if (!i1)
 244                             break;
 245                         else {
 246                             p1 = getstarg(player->argp[6], "Amount? ",
 247                                           buf);
 248                             if (!p1)
 249                                 return RET_SYN;
 250                             level = atoi(p1);
 251                         }
 252                         if (level < 0) {
 253                             level = 0;
 254                             pr("You must use positive number! Level set to 0.\n");
 255                         }
 256                         ship.shp_tend[sub] = i1->i_vtype;
 257                         ship.shp_lend[sub] = level;
 258                         pr("Order Set \n");
 259                         break;
 260                     }
 261                 }
 262             } else
 263                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 264
 265             break;
 266         }                       /* end of switch (*p) */
 267
 268
 269
 270         /*
 271          *  Set loading flag if ship is already in one
 272          *  of the specified harbors and a cargo has been
 273          *  specified.
 274          */
 275
 276         if (((ship.shp_x == ship.shp_destx[0])
 277              && (ship.shp_y == ship.shp_desty[0])
 278              && (ship.shp_lstart[0] != ' '))
 279             || ((ship.shp_x == ship.shp_desty[1])
 280                 && (ship.shp_y == ship.shp_desty[1])
 281                 && (ship.shp_lstart[1] != ' '))) {
 282
 283             coord tcord;
 284             i_type tcomm;
 285             short lev[TMAX];
 286             int i;
 287
 288             ship.shp_autonav |= AN_LOADING;
 289
 290             /*  swap variables, this keeps
 291                the load_it() procedure happy. CZ
 292              */
 293             tcord = ship.shp_destx[0];
 294             ship.shp_destx[0] = ship.shp_destx[1];
 295             ship.shp_destx[1] = tcord;
 296             tcord = ship.shp_desty[0];
 297             ship.shp_desty[0] = ship.shp_desty[1];
 298             ship.shp_desty[1] = tcord;
 299
 300             for (i = 0; i < TMAX; i++) {
 301                 lev[i] = ship.shp_lstart[i];
 302                 ship.shp_lstart[i] = ship.shp_lend[i];
 303                 ship.shp_lend[i] = lev[i];
 304                 tcomm = ship.shp_tstart[i];
 305                 ship.shp_tstart[i] = ship.shp_tend[i];
 306                 ship.shp_tend[i] = tcomm;
 307             }
 308         }
 309         /*
 310            **  Write ship back to database, then give it
 311            **  a kick down the autonav route if necessary.
 312          */
 313
 314
 315         /* Now do a sanity check. */
 316         if (!check_ship_ok(&start))
 317             return RET_SYN;
 318
 319         putship(ship.shp_uid, &ship);
 320     }
 321     return RET_OK;
 322 }
 323
 324 static void
 325 eta_calc(struct shpstr *sp, s_char *path, int *len, int *nupdates)
 326 {
 327     double mobcost, mobil;
 328     int i;
 329
 330     i = strlen(path);
 331     *len = i;
 332     *nupdates = 1;
 333
 334     mobcost = sp->shp_effic * 0.01 * sp->shp_speed;
 335     mobcost = 480.0 / (mobcost + techfact(sp->shp_tech, mobcost));
 336     mobil = sp->shp_mobil;
 337     while (i) {
 338         if (mobil > 0) {
 339             mobil -= mobcost;
 340             i--;
 341         } else {
 342             mobil += (ship_mob_scale * (float)etu_per_update);
 343             (*nupdates)++;
 344         }
 345     }
 346 }
 347
 348 static void
 349 prhold(int hold, i_type itype, int amt)
 350 {
 351     if (itype != I_NONE && amt != 0) {
 352         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 353             return;
 354         pr("%d-", hold + 1);
 355         pr("%c", ichr[itype].i_mnem);
 356         pr(":");
 357         pr("%d ", amt);
 358     }
 359 }
 360
 361 int
 362 qorde(void)
 363 {
 364     int nships = 0;
 365     int i;
 366     struct nstr_item nb;
 367     struct shpstr ship;
 368
 369     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
 370         return RET_SYN;
 371     while (nxtitem(&nb, (&ship))) {
 372         if (!player->owner || ship.shp_own == 0)
 373             continue;
 374         if (!(ship.shp_autonav & AN_AUTONAV)
 375             && (!opt_SAIL || !ship.shp_path[0]))
 376             continue;
 377
 378         if (!nships) {          /* 1st ship, print banner */
 379             if (player->god)
 380                 pr("own ");
 381             pr("shp#     ship type    ");
 382             pr("[Starting]       (Ending)    \n");
 383         }
 384         nships++;
 385         if (player->god)
 386             pr("%3d ", ship.shp_own);
 387         pr("%4d", nb.cur);
 388         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 389
 390         if (ship.shp_autonav & AN_AUTONAV) {
 391             pr(" [");
 392             for (i = 0; i < TMAX; i++)
 393                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 394             pr("] , (");
 395             for (i = 0; i < TMAX; i++)
 396                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 397             pr(")");
 398             if (ship.shp_autonav & AN_SCUTTLE)
 399                 pr(" scuttling");
 400             pr("\n");
 401         } else
 402             pr(" has a sail path\n");
 403
 404         if (ship.shp_name[0] != 0) {
 405             if (player->god)
 406                 pr("    ");
 407             pr("       %s\n", ship.shp_name);
 408         }
 409     }
 410     if (!nships) {
 411         if (player->argp[1])
 412             pr("%s: No ship(s)\n", player->argp[1]);
 413         else
 414             pr("%s: No ship(s)\n", "");
 415         return RET_FAIL;
 416     } else
 417         pr("%d ship%s\n", nships, splur(nships));
 418     return RET_OK;
 419 }
 420
 421 int
 422 sorde(void)
 423 {
 424     int nships = 0;
 425     int len, updates;
 426     s_char *c;
 427     struct nstr_item nb;
 428     struct shpstr ship;
 429     s_char buf[1024];
 430
 431     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
 432         return RET_SYN;
 433     while (nxtitem(&nb, (&ship))) {
 434         if (!player->owner || ship.shp_own == 0)
 435             continue;
 436         if (!(ship.shp_autonav & AN_AUTONAV)
 437             && (!opt_SAIL || !ship.shp_path[0]))
 438             continue;
 439
 440         if (!nships) {          /* 1st ship, print banner */
 441             if (player->god)
 442                 pr("own ");
 443             pr("shp#     ship type      x,y    ");
 444             pr("start    end   ");
 445             pr("len  eta\n");
 446         }
 447         nships++;
 448         if (player->god)
 449             pr("%3d ", ship.shp_own);
 450         pr("%4d", nb.cur);
 451         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 452         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 453
 454         if (ship.shp_autonav & AN_AUTONAV) {
 455             /* Destination 1 */
 456             prxy(" %3d,%-3d", ship.shp_destx[1],
 457                  ship.shp_desty[1], player->cnum);
 458
 459             /* Destination 2 */
 460             if ((ship.shp_destx[1] != ship.shp_destx[0])
 461                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 462                 prxy(" %3d,%-3d", ship.shp_destx[0],
 463                      ship.shp_desty[0], player->cnum);
 464             } else
 465                 pr("        ");
 466
 467             if (ship.shp_autonav & AN_STANDBY)
 468                 pr(" suspended");
 469             else if (ship.shp_autonav & AN_LOADING)
 470                 pr(" loading");
 471             else {
 472                 /* ETA calculation */
 473
 474                 c = BestShipPath(buf, ship.shp_x,
 475                                  ship.shp_y, ship.shp_destx[0],
 476                                  ship.shp_desty[0], ship.shp_own);
 477                 if (!c || !*c)
 478                     pr(" no route possible");
 479                 else if (*c == 'h')
 480                     pr(" has arrived");
 481                 else if (*c == '?')
 482                     pr(" route too long");
 483                 else {
 484                     /* distance to destination */
 485                     eta_calc(&ship, c, &len, &updates);
 486                     pr(" %3d %4d", len, updates);
 487                 }
 488             }
 489             if (ship.shp_autonav & AN_SCUTTLE)
 490                 pr(" (scuttling)");
 491             pr("\n");
 492         } else
 493             pr(" has a sail path\n");
 494
 495         if (ship.shp_name[0] != 0) {
 496             if (player->god)
 497                 pr("    ");
 498             pr("       %s\n", ship.shp_name);
 499         }
 500     }
 501     if (!nships) {
 502         if (player->argp[1])
 503             pr("%s: No ship(s)\n", player->argp[1]);
 504         else
 505             pr("%s: No ship(s)\n", "");
 506         return RET_FAIL;
 507     } else
 508         pr("%d ship%s\n", nships, splur(nships));
 509     return RET_OK;
 510 }