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) 1986-2014, Dave Pare, Jeff Bailey, Thomas Ruschak,
   4  *                Ken Stevens, Steve McClure, Markus Armbruster
   5  *
   6  *  Empire 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 3 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, see <http://www.gnu.org/licenses/>.
  18  *
  19  *  ---
  20  *
  21  *  See files README, COPYING and CREDITS in the root of the source
  22  *  tree for related information and legal notices.  It is expected
  23  *  that future projects/authors will amend these files as needed.
  24  *
  25  *  ---
  26  *
  27  *  orde.c: Turn on/off autonavigation
  28  *
  29  *  Known contributors to this file:
  30  *     Chad Zabel, 1994
  31  *     Steve McClure, 2000
  32  *     Markus Armbruster, 2004-2013
  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 ichrstr *i1;
  67     coord p0x, p0y, p1x, p1y;
  68     int i;
  69     char *p, *p1, *dest;
  70     char buf1[128];
  71     char buf[1024];
  72     char prompt[128];
  73
  74     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
  75         return RET_SYN;
  76     while (!player->aborted && nxtitem(&nb, (&ship))) {
  77         if (!player->owner || ship.shp_own == 0)
  78             continue;
  79         if (opt_SAIL) {
  80             if (*ship.shp_path) {
  81                 pr("Ship #%d has a \"sail\" path!\n", ship.shp_uid);
  82                 continue;
  83             }
  84         }
  85         sprintf(prompt,
  86                 "Ship #%d, declare, cancel, suspend, resume, level? ",
  87                 ship.shp_uid);
  88         p = getstarg(player->argp[2], prompt, buf);
  89         if (player->aborted || !p || !*p)
  90             return RET_FAIL;
  91         if (!check_ship_ok(&ship))
  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 (!check_ship_ok(&ship))
 130                 return RET_FAIL;
 131             if (!*p || !strcmp(p, "-")) {
 132                 pr("A one-way order has been accepted.\n");
 133             } else if (!strncmp(p, "s", 1)) {
 134                 if (!(mchr[(int)ship.shp_type].m_flags & M_TRADE)) {
 135                     pr("You can't auto-scuttle that ship!\n");
 136                     return RET_SYN;
 137                 }
 138                 pr("A scuttle order has been accepted.\n");
 139                 scuttling = 1;
 140             } else {
 141                 if (!sarg_xy(p, &p1x, &p1y))
 142                     return RET_SYN;
 143                 pr("A circular order has been accepted.\n");
 144             }
 145
 146             /*
 147              *  Set new destination and trade type fields.
 148              */
 149             ship.shp_mission = 0;
 150             ship.shp_destx[1] = p1x;
 151             ship.shp_desty[1] = p1y;
 152             ship.shp_destx[0] = p0x;
 153             ship.shp_desty[0] = p0y;
 154
 155             ship.shp_autonav &= ~(AN_STANDBY | AN_LOADING);
 156             ship.shp_autonav |= AN_AUTONAV;
 157
 158             if (scuttling)
 159                 ship.shp_autonav |= AN_SCUTTLE;
 160             break;
 161
 162             /* set cargo levels on the ship */
 163
 164         case 'l':
 165             /* convert player->argp[3] to an integer */
 166             sprintf(buf1, "Field (1-%d) ", TMAX);
 167             if (!getstarg(player->argp[3], buf1, buf))
 168                 return RET_SYN;
 169             if (!check_ship_ok(&ship))
 170                 return RET_FAIL;
 171             sub = atoi(buf);
 172             /* check to make sure value in within range. */
 173             if (sub > TMAX || sub < 1) {
 174                 pr("Value must range from 1 to %d\n", TMAX);
 175                 return RET_FAIL;
 176             }
 177
 178             /* to keep sub in range of our arrays
 179                subtract 1 so the new range is 0-(TMAX-1)
 180              */
 181             sub = sub - 1;;
 182
 183             if (ship.shp_autonav & AN_AUTONAV) {
 184                 dest = getstarg(player->argp[4], "Start or end? ", buf);
 185                 if (!dest)
 186                     return RET_FAIL;
 187                 switch (*dest) {
 188                 default:
 189                     pr("You must enter 'start' or 'end'\n");
 190                     return RET_SYN;
 191                 case 'e':
 192                 case 'E':
 193                     i1 = whatitem(player->argp[5], "Commodity? ");
 194                     if (!i1)
 195                         return RET_FAIL;
 196                     p1 = getstarg(player->argp[6], "Amount? ", buf);
 197                     if (!p1)
 198                         return RET_SYN;
 199                     if (!check_ship_ok(&ship))
 200                         return RET_FAIL;
 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? ", buf);
 216                     if (!p1)
 217                         return RET_SYN;
 218                     if (!check_ship_ok(&ship))
 219                         return RET_FAIL;
 220                     level = atoi(p1);
 221                     if (level < 0) {
 222                         level = 0;
 223                         pr("You must use positive number! Level set to 0.\n");
 224                     }
 225                     ship.shp_tend[sub] = i1->i_uid;
 226                     ship.shp_lend[sub] = level;
 227                     pr("Order Set \n");
 228                     break;
 229                 }
 230             } else
 231                 pr("You need to 'declare' a ship path first, see 'info order'\n");
 232
 233             break;
 234         }                       /* end of switch (*p) */
 235
 236
 237
 238         /*
 239          *  Set loading flag if ship is already in one
 240          *  of the specified harbors and a cargo has been
 241          *  specified.
 242          */
 243
 244         if (((ship.shp_x == ship.shp_destx[0])
 245              && (ship.shp_y == ship.shp_desty[0])
 246              && (ship.shp_lstart[0] != ' '))
 247             || ((ship.shp_x == ship.shp_desty[1])
 248                 && (ship.shp_y == ship.shp_desty[1])
 249                 && (ship.shp_lstart[1] != ' '))) {
 250
 251             coord tcord;
 252             i_type tcomm;
 253             short lev[TMAX];
 254             int i;
 255
 256             ship.shp_autonav |= AN_LOADING;
 257
 258             /*  swap variables, this keeps
 259                the load_it() procedure happy. CZ
 260              */
 261             tcord = ship.shp_destx[0];
 262             ship.shp_destx[0] = ship.shp_destx[1];
 263             ship.shp_destx[1] = tcord;
 264             tcord = ship.shp_desty[0];
 265             ship.shp_desty[0] = ship.shp_desty[1];
 266             ship.shp_desty[1] = tcord;
 267
 268             for (i = 0; i < TMAX; i++) {
 269                 lev[i] = ship.shp_lstart[i];
 270                 ship.shp_lstart[i] = ship.shp_lend[i];
 271                 ship.shp_lend[i] = lev[i];
 272                 tcomm = ship.shp_tstart[i];
 273                 ship.shp_tstart[i] = ship.shp_tend[i];
 274                 ship.shp_tend[i] = tcomm;
 275             }
 276         }
 277
 278         putship(ship.shp_uid, &ship);
 279     }
 280     return RET_OK;
 281 }
 282
 283 static int
 284 eta_calc(struct shpstr *sp, int len)
 285 {
 286     double mobcost, mobil;
 287     int i, nupdates;
 288
 289     i = len;
 290     nupdates = 1;
 291
 292     mobcost = shp_mobcost(sp);
 293     mobil = sp->shp_mobil;
 294     while (i) {
 295         if (mobil > 0) {
 296             mobil -= mobcost;
 297             i--;
 298         } else {
 299             mobil += (ship_mob_scale * (float)etu_per_update);
 300             nupdates++;
 301         }
 302     }
 303     return nupdates;
 304 }
 305
 306 static void
 307 prhold(int hold, i_type itype, int amt)
 308 {
 309     if (itype != I_NONE && amt != 0) {
 310         if (CANT_HAPPEN(itype <= I_NONE || itype > I_MAX))
 311             return;
 312         pr("%d-", hold + 1);
 313         pr("%c", ichr[itype].i_mnem);
 314         pr(":");
 315         pr("%d ", amt);
 316     }
 317 }
 318
 319 int
 320 qorde(void)
 321 {
 322     int nships = 0;
 323     int i;
 324     struct nstr_item nb;
 325     struct shpstr ship;
 326
 327     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 328         return RET_SYN;
 329     while (nxtitem(&nb, (&ship))) {
 330         if (!player->owner || ship.shp_own == 0)
 331             continue;
 332         if (!(ship.shp_autonav & AN_AUTONAV)
 333             && (!opt_SAIL || !ship.shp_path[0]))
 334             continue;
 335
 336         if (!nships) {          /* 1st ship, print banner */
 337             if (player->god)
 338                 pr("own ");
 339             pr("shp#     ship type    ");
 340             pr("[Starting]       (Ending)    \n");
 341         }
 342         nships++;
 343         if (player->god)
 344             pr("%3d ", ship.shp_own);
 345         pr("%4d", nb.cur);
 346         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 347
 348         if (ship.shp_autonav & AN_AUTONAV) {
 349             pr(" [");
 350             for (i = 0; i < TMAX; i++)
 351                 prhold(i, ship.shp_tend[i], ship.shp_lend[i]);
 352             pr("] , (");
 353             for (i = 0; i < TMAX; i++)
 354                 prhold(i, ship.shp_tstart[i], ship.shp_lstart[i]);
 355             pr(")");
 356             if (ship.shp_autonav & AN_SCUTTLE)
 357                 pr(" scuttling");
 358             pr("\n");
 359         } else
 360             pr(" has a sail path\n");
 361
 362         if (ship.shp_name[0] != 0) {
 363             if (player->god)
 364                 pr("    ");
 365             pr("       %s\n", ship.shp_name);
 366         }
 367     }
 368     if (!nships) {
 369         if (player->argp[1])
 370             pr("%s: No ship(s)\n", player->argp[1]);
 371         else
 372             pr("%s: No ship(s)\n", "");
 373         return RET_FAIL;
 374     } else
 375         pr("%d ship%s\n", nships, splur(nships));
 376     return RET_OK;
 377 }
 378
 379 int
 380 sorde(void)
 381 {
 382     int nships = 0;
 383     int len, updates;
 384     double c;
 385     struct nstr_item nb;
 386     struct shpstr ship;
 387
 388     if (!snxtitem(&nb, EF_SHIP, player->argp[1], NULL))
 389         return RET_SYN;
 390     while (nxtitem(&nb, (&ship))) {
 391         if (!player->owner || ship.shp_own == 0)
 392             continue;
 393         if (!(ship.shp_autonav & AN_AUTONAV)
 394             && (!opt_SAIL || !ship.shp_path[0]))
 395             continue;
 396
 397         if (!nships) {          /* 1st ship, print banner */
 398             if (player->god)
 399                 pr("own ");
 400             pr("shp#     ship type       x,y      start      end   "
 401                " len  eta\n");
 402         }
 403         nships++;
 404         if (player->god)
 405             pr("%3d ", ship.shp_own);
 406         pr("%4d", nb.cur);
 407         pr(" %-16.16s", mchr[(int)ship.shp_type].m_name);
 408         prxy(" %4d,%-4d", ship.shp_x, ship.shp_y);
 409
 410         if (ship.shp_autonav & AN_AUTONAV) {
 411             /* Destination 1 */
 412             prxy(" %4d,%-4d", ship.shp_destx[1], ship.shp_desty[1]);
 413
 414             /* Destination 2 */
 415             if ((ship.shp_destx[1] != ship.shp_destx[0])
 416                 || (ship.shp_desty[1] != ship.shp_desty[0])) {
 417                 prxy(" %4d,%-4d", ship.shp_destx[0], ship.shp_desty[0]);
 418             } else
 419                 pr("          ");
 420
 421             if (ship.shp_autonav & AN_STANDBY)
 422                 pr(" suspended");
 423             else if (ship.shp_autonav & AN_LOADING)
 424                 pr(" loading");
 425             else {
 426                 /* ETA calculation */
 427                 c = path_find(ship.shp_x, ship.shp_y,
 428                               ship.shp_destx[0], ship.shp_desty[0],
 429                               ship.shp_own, MOB_SAIL);
 430                 if (c < 0)
 431                     pr(" no route possible");
 432                 else if (c == 0)
 433                     pr(" has arrived");
 434                 else {
 435                     /* distance to destination */
 436                     len = (int)c;
 437                     updates = eta_calc(&ship, len);
 438                     pr(" %3d %4d", len, updates);
 439                 }
 440             }
 441             if (ship.shp_autonav & AN_SCUTTLE)
 442                 pr(" (scuttling)");
 443             pr("\n");
 444         } else
 445             pr(" has a sail path\n");
 446
 447         if (ship.shp_name[0] != 0) {
 448             if (player->god)
 449                 pr("    ");
 450             pr("       %s\n", ship.shp_name);
 451         }
 452     }
 453     if (!nships) {
 454         if (player->argp[1])
 455             pr("%s: No ship(s)\n", player->argp[1]);
 456         else
 457             pr("%s: No ship(s)\n", "");
 458         return RET_FAIL;
 459     } else
 460         pr("%d ship%s\n", nships, splur(nships));
 461     return RET_OK;
 462 }