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) 1986-2005, 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 <string.h>
  36 #include <ctype.h>
  37 #include "misc.h"
  38 #include "player.h"
  39 #include "ship.h"
  40 #include "sect.h"
  41 #include "xy.h"
  42 #include "nsc.h"
  43 #include "nat.h"
  44 #include "path.h"
  45 #include "file.h"
  46 #include "item.h"
  47 #include "commands.h"
  48 #include "optlist.h"
  49
  50 /*
  51 **  Command syntax:
  52 **
  53 **  ORDER <ship>                                  Show orders
  54 **  ORDER <ship> c[ancel]                         Cancel orders
  55 **  ORDER <ship> s[top]                           Suspend orders
  56 **  ORDER <ship> r[esume]                         Resume orders
  57 **  ORDER <ship> d[eclare] <dest1>                Set destination
  58 **               d[eclare] <dest1> <dest2>
  59 **  ORDER <ship> l[evel]   <field> <start/end> <comm> <level>
  60 **
  61 **
  62 ** New syntax:
  63 **  qorder <ship>    display cargo levels
  64 **  sorder <ship>    display statistical info
  65  */
  66
  67 int
  68 orde(void)
  69 {
  70     int diffeachship = 0;
  71     int orders, sub, level;
  72     int scuttling = 0;
  73     struct nstr_item nb;
  74     struct shpstr ship;
  75     struct shpstr start;        /* Used for checking database */
  76     struct ichrstr *i1;
  77     coord p0x, p0y, p1x, p1y;
  78     int i;
  79     s_char *p, *p1, *dest;
  80     s_char buf1[128];
  81     s_char buf[1024];
  82     s_char prompt[128];
  83
  84     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
  85         return RET_SYN;
  86     while (!player->aborted && nxtitem(&nb, (&ship))) {
  87         if (!player->owner || ship.shp_own == 0)
  88             continue;
  89         if (ship.shp_type < 0 || ship.shp_type > shp_maxno) {
  90             pr("bad ship type %d (#%d)\n", ship.shp_type, nb.cur);
  91             continue;
  92         }
  93         if (opt_SAIL) {
  94             if (*ship.shp_path) {
  95                 if (!diffeachship)
  96                     pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  97                 continue;
  98             }
  99         }
 100         memcpy(&start, &ship, sizeof(struct shpstr));
 101         sprintf(prompt,
 102                 "Ship #%d, declare, cancel, suspend, resume, level? ",
 103                 ship.shp_uid);
 104         p = getstarg(player->argp[2], prompt, buf);
 105         if (player->aborted || !p)
 106             return RET_FAIL;
 107         if (!*p) {
 108             if (!diffeachship)
 109                 return RET_FAIL;
 110             else
 111                 continue;
 112         }
 113         switch (*p) {
 114         default:
 115             pr("Bad order type!\n");
 116             return RET_SYN;
 117         case 'c':               /* clear ship fields  */
 118             ship.shp_mission = 0;
 119             ship.shp_autonav &= ~(AN_AUTONAV + AN_STANDBY + AN_LOADING);
 120             for (i = 0; i < TMAX; i++) {
 121                 ship.shp_tstart[i] = I_NONE;
 122                 ship.shp_tend[i] = I_NONE;
 123                 ship.shp_lstart[i] = 0;
 124                 ship.shp_lend[i] = 0;
 125             }
 126             break;
 127         case 's':               /* suspend ship movement  */
 128             ship.shp_mission = 0;
 129             ship.shp_autonav |= AN_STANDBY;
 130             break;
 131         case 'r':               /* resume ship movement   */
 132             ship.shp_mission = 0;
 133             ship.shp_autonav &= ~AN_STANDBY;
 134             break;
 135         case 'd':               /* declare path */
 136             orders = 0;
 137             scuttling = 0;
 138             /* Need location */
 139             if ((p = getstarg(player->argp[3], "Destination? ", buf)) == 0
 140                 || *p == 0)
 141                 return RET_SYN;
 142             if (!sarg_xy(p, &p0x, &p0y))
 143                 return RET_SYN;
 144             p1x = p0x;
 145             p1y = p0y;
 146
 147
 148
 149             if (!orders) {
 150                 p = getstarg(player->argp[4], "Second dest? ", buf);
 151                 if (!p || !*p || !strcmp(p, "-")) {
 152                     orders = 1;
 153                     pr("A one-way order has been accepted.\n");
 154                 } else if (!strncmp(p, "s", 1)) {
 155                     if (opt_TRADESHIPS) {
 156                         if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 157                             pr("You can't auto-scuttle that ship!\n");
 158                             return RET_SYN;
 159                         }
 160                     } else {
 161                         pr("You can't auto-scuttle that ship!\n");
 162                         return RET_SYN;
 163                     }
 164                     pr("A scuttle order has been accepted.\n");
 165                     scuttling = 1;
 166                 } else {
 167                     if (!sarg_xy(p, &p1x, &p1y))
 168                         return RET_SYN;
 169                     pr("A circular order has been accepted.\n");
 170                 }
 171             }
 172
 173             /*
 174              *  Set new destination and trade type fields.
 175              */
 176             ship.shp_mission = 0;
 177             ship.shp_destx[1] = p1x;
 178             ship.shp_desty[1] = p1y;
 179             ship.shp_destx[0] = p0x;
 180             ship.shp_desty[0] = p0y;
 181
 182             ship.shp_autonav &= ~(AN_STANDBY + AN_SAILDIR + AN_LOADING);
 183             ship.shp_autonav |= AN_AUTONAV;
 184
 185             if (scuttling)
 186                 ship.shp_autonav |= AN_SCUTTLE;
 187             break;
 188
 189             /* set cargo levels on the ship */
 190
 191         case 'l':
 192             /* convert player->argp[3] to an integer */
 193             if (player->argp[3])
 194                 sub = atoi(player->argp[3]);
 195             else {
 196                 sprintf(buf1, "Field (1-%d) ", TMAX);
 197                 if (getstarg(player->argp[3], buf1, buf) == 0)
 198                     return RET_SYN;
 199                 sub = atoi(buf);
 200             }
 201             /* check to make sure value in within range. */
 202             if (sub > TMAX || sub < 1) {
 203                 pr("Value must range from 1 to %d\n", TMAX);
 204                 break;
 205             }
 206
 207             /* to keep sub in range of our arrays
 208                subtract 1 so the new range is 0-(TMAX-1)
 209              */
 210             sub = sub - 1;;
 211
 212             if (ship.shp_autonav & AN_AUTONAV) {
 213                 orders = 1;
 214                 dest = getstarg(player->argp[4], "Start or End? ", buf);
 215                 if (orders) {   /* before dest check */
 216                     if (!dest)
 217                         break;
 218                     switch (*dest) {
 219                     default:
 220                         pr("You must enter 'start' or 'end'\n");
 221                         return RET_SYN;
 222                     case 'e':
 223                     case 'E':
 224                         i1 = whatitem(player->argp[5], "Commodity? ");
 225                         if (!i1)
 226                             break;
 227                         else {
 228                             p1 = getstarg(player->argp[6], "Amount? ",
 229                                           buf);
 230                             if (!p1)
 231                                 return RET_SYN;
 232                             level = atoi(p1);
 233                         }
 234                         if (level < 0) {
 235                             level = 0;  /* prevent negatives. */
 236                             pr("You must use positive number! Level set to 0.\n");
 237                         }
 238                         ship.shp_tstart[sub] = i1->i_vtype;
 239                         ship.shp_lstart[sub] = level;
 240                         pr("Order Set \n");
 241                         break;
 242                     case 's':
 243                     case 'S':
 244                         i1 = whatitem(player->argp[5], "Commodity? ");
 245                         if (!i1)
 246                             break;
 247                         else {
 248                             p1 = getstarg(player->argp[6], "Amount? ",
 249                                           buf);
 250                             if (!p1)
 251                                 return RET_SYN;
 252                             level = atoi(p1);
 253                         }
 254                         if (level < 0) {
 255                             level = 0;
 256                             pr("You must use positive number! Level set to 0.\n");
 257                         }
 258                         ship.shp_tend[sub] = i1->i_vtype;
 259                         ship.shp_lend[sub] = level;
 260                         pr("Order Set \n");
 261                         break;
 262                     }
 263                 }
 264             } else
 265                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 266
 267             break;
 268         }                       /* end of switch (*p) */
 269
 270
 271
 272         /*
 273          *  Set loading flag if ship is already in one
 274          *  of the specified harbors and a cargo has been
 275          *  specified.
 276          */
 277
 278         if (((ship.shp_x == ship.shp_destx[0])
 279              && (ship.shp_y == ship.shp_desty[0])
 280              && (ship.shp_lstart[0] != ' '))
 281             || ((ship.shp_x == ship.shp_desty[1])
 282                 && (ship.shp_y == ship.shp_desty[1])
 283                 && (ship.shp_lstart[1] != ' '))) {
 284
 285             coord tcord;
 286             i_type tcomm;
 287             short lev[TMAX];
 288             int i;
 289
 290             ship.shp_autonav |= AN_LOADING;
 291
 292             /*  swap variables, this keeps
 293                the load_it() procedure happy. CZ
 294              */
 295             tcord = ship.shp_destx[0];
 296             ship.shp_destx[0] = ship.shp_destx[1];
 297             ship.shp_destx[1] = tcord;
 298             tcord = ship.shp_desty[0];
 299             ship.shp_desty[0] = ship.shp_desty[1];
 300             ship.shp_desty[1] = tcord;
 301
 302             for (i = 0; i < TMAX; i++) {
 303                 lev[i] = ship.shp_lstart[i];
 304                 ship.shp_lstart[i] = ship.shp_lend[i];
 305                 ship.shp_lend[i] = lev[i];
 306                 tcomm = ship.shp_tstart[i];
 307                 ship.shp_tstart[i] = ship.shp_tend[i];
 308                 ship.shp_tend[i] = tcomm;
 309             }
 310         }
 311         /*
 312            **  Write ship back to database, then give it
 313            **  a kick down the autonav route if necessary.
 314          */
 315
 316
 317         /* Now do a sanity check. */
 318         if (!check_ship_ok(&start))
 319             return RET_SYN;
 320
 321         putship(ship.shp_uid, &ship);
 322     }
 323     return RET_OK;
 324 }
 325
 326 static void
 327 eta_calc(struct shpstr *sp, s_char *path, int *len, int *nupdates)
 328 {
 329     double mobcost, mobil;
 330     int i;
 331
 332     i = strlen(path);
 333     *len = i;
 334     *nupdates = 1;
 335
 336     mobcost = sp->shp_effic * 0.01 * sp->shp_speed;
 337     mobcost = 480.0 / (mobcost + techfact(sp->shp_tech, mobcost));
 338     mobil = sp->shp_mobil;
 339     while (i) {
 340         if (mobil > 0) {
 341             mobil -= mobcost;
 342             i--;
 343         } else {
 344             mobil += (ship_mob_scale * (float)etu_per_update);
 345             (*nupdates)++;
 346         }
 347     }
 348 }
 349
 350 static void
 351 prhold(int hold, i_type itype, int amt)
 352 {
 353     if (itype != I_NONE && amt != 0) {
 354         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 355             return;
 356         pr("%d-", hold + 1);
 357         pr("%c", ichr[itype].i_mnem);
 358         pr(":");
 359         pr("%d ", amt);
 360     }
 361 }
 362
 363 int
 364 qorde(void)
 365 {
 366     int nships = 0;
 367     int i;
 368     struct nstr_item nb;
 369     struct shpstr ship;
 370
 371     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
 372         return RET_SYN;
 373     while (nxtitem(&nb, (&ship))) {
 374         if (!player->owner || ship.shp_own == 0)
 375             continue;
 376         if (!(ship.shp_autonav & AN_AUTONAV)
 377             && (!opt_SAIL || !ship.shp_path[0]))
 378             continue;
 379
 380         if (!nships) {          /* 1st ship, print banner */
 381             if (player->god)
 382                 pr("own ");
 383             pr("shp#     ship type    ");
 384             pr("[Starting]       (Ending)    \n");
 385         }
 386         nships++;
 387         if (player->god)
 388             pr("%3d ", ship.shp_own);
 389         pr("%4d", nb.cur);
 390         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 391
 392         if (ship.shp_autonav & AN_AUTONAV) {
 393             pr(" [");
 394             for (i = 0; i < TMAX; i++)
 395                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 396             pr("] , (");
 397             for (i = 0; i < TMAX; i++)
 398                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 399             pr(")");
 400             if (ship.shp_autonav & AN_SCUTTLE)
 401                 pr(" scuttling");
 402             pr("\n");
 403         } else
 404             pr(" has a sail path\n");
 405
 406         if (ship.shp_name[0] != 0) {
 407             if (player->god)
 408                 pr("    ");
 409             pr("       %s\n", ship.shp_name);
 410         }
 411     }
 412     if (!nships) {
 413         if (player->argp[1])
 414             pr("%s: No ship(s)\n", player->argp[1]);
 415         else
 416             pr("%s: No ship(s)\n", "");
 417         return RET_FAIL;
 418     } else
 419         pr("%d ship%s\n", nships, splur(nships));
 420     return RET_OK;
 421 }
 422
 423 int
 424 sorde(void)
 425 {
 426     int nships = 0;
 427     int len, updates;
 428     s_char *c;
 429     struct nstr_item nb;
 430     struct shpstr ship;
 431     s_char buf[1024];
 432
 433     if (!snxtitem(&nb, EF_SHIP, player->argp[1]))
 434         return RET_SYN;
 435     while (nxtitem(&nb, (&ship))) {
 436         if (!player->owner || ship.shp_own == 0)
 437             continue;
 438         if (!(ship.shp_autonav & AN_AUTONAV)
 439             && (!opt_SAIL || !ship.shp_path[0]))
 440             continue;
 441
 442         if (!nships) {          /* 1st ship, print banner */
 443             if (player->god)
 444                 pr("own ");
 445             pr("shp#     ship type      x,y    ");
 446             pr("start    end   ");
 447             pr("len  eta\n");
 448         }
 449         nships++;
 450         if (player->god)
 451             pr("%3d ", ship.shp_own);
 452         pr("%4d", nb.cur);
 453         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 454         prxy(" %3d,%-3d", ship.shp_x, ship.shp_y, player->cnum);
 455
 456         if (ship.shp_autonav & AN_AUTONAV) {
 457             /* Destination 1 */
 458             prxy(" %3d,%-3d", ship.shp_destx[1],
 459                  ship.shp_desty[1], player->cnum);
 460
 461             /* Destination 2 */
 462             if ((ship.shp_destx[1] != ship.shp_destx[0])
 463                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 464                 prxy(" %3d,%-3d", ship.shp_destx[0],
 465                      ship.shp_desty[0], player->cnum);
 466             } else
 467                 pr("        ");
 468
 469             if (ship.shp_autonav & AN_STANDBY)
 470                 pr(" suspended");
 471             else if (ship.shp_autonav & AN_LOADING)
 472                 pr(" loading");
 473             else {
 474                 /* ETA calculation */
 475
 476                 c = BestShipPath(buf, ship.shp_x,
 477                                  ship.shp_y, ship.shp_destx[0],
 478                                  ship.shp_desty[0], ship.shp_own);
 479                 if (!c || !*c)
 480                     pr(" no route possible");
 481                 else if (*c == 'h')
 482                     pr(" has arrived");
 483                 else if (*c == '?')
 484                     pr(" route too long");
 485                 else {
 486                     /* distance to destination */
 487                     eta_calc(&ship, c, &len, &updates);
 488                     pr(" %3d %4d", len, updates);
 489                 }
 490             }
 491             if (ship.shp_autonav & AN_SCUTTLE)
 492                 pr(" (scuttling)");
 493             pr("\n");
 494         } else
 495             pr(" has a sail path\n");
 496
 497         if (ship.shp_name[0] != 0) {
 498             if (player->god)
 499                 pr("    ");
 500             pr("       %s\n", ship.shp_name);
 501         }
 502     }
 503     if (!nships) {
 504         if (player->argp[1])
 505             pr("%s: No ship(s)\n", player->argp[1]);
 506         else
 507             pr("%s: No ship(s)\n", "");
 508         return RET_FAIL;
 509     } else
 510         pr("%d ship%s\n", nships, splur(nships));
 511     return RET_OK;
 512 }