4.3BSD - /usr/src/games/hunt/execute.c

   1: /*
   2:  *  Hunt
   3:  *  Copyright (c) 1985 Conrad C. Huang, Gregory S. Couch, Kenneth C.R.C. Arnold
   4:  *  San Francisco, California
   5:  *
   6:  *  Copyright (c) 1985 Regents of the University of California.
   7:  *  All rights reserved.  The Berkeley software License Agreement
   8:  *  specifies the terms and conditions for redistribution.
   9:  */
  10: 
  11: # include   "hunt.h"
  12: 
  13: # undef CTRL
  14: # define    CTRL(x) ('x' & 037)
  15: 
  16: # ifdef MONITOR
  17: /*
  18:  * mon_execute:
  19:  *	Execute a single monitor command
  20:  */
  21: mon_execute(pp)
  22: register PLAYER *pp;
  23: {
  24:     register char   ch;
  25: 
  26:     ch = pp->p_cbuf[pp->p_ncount++];
  27:     switch (ch) {
  28:       case CTRL(L):
  29:         sendcom(pp, REDRAW);
  30:         break;
  31:       case 'q':
  32:         (void) strcpy(pp->p_death, "| Quit |");
  33:         break;
  34:     }
  35: }
  36: # endif MONITOR
  37: 
  38: /*
  39:  * execute:
  40:  *	Execute a single command
  41:  */
  42: execute(pp)
  43: register PLAYER *pp;
  44: {
  45:     register char   ch;
  46: 
  47:     ch = pp->p_cbuf[pp->p_ncount++];
  48: 
  49: # ifdef FLY
  50:     if (pp->p_flying >= 0) {
  51:         switch (ch) {
  52:           case CTRL(L):
  53:             sendcom(pp, REDRAW);
  54:             break;
  55:           case 'q':
  56:             (void) strcpy(pp->p_death, "| Quit |");
  57:             break;
  58:         }
  59:         return;
  60:     }
  61: # endif	FLY
  62: 
  63:     switch (ch) {
  64:       case CTRL(L):
  65:         sendcom(pp, REDRAW);
  66:         break;
  67:       case 'h':
  68:         move(pp, LEFTS);
  69:         break;
  70:       case 'H':
  71:         face(pp, LEFTS);
  72:         break;
  73:       case 'j':
  74:         move(pp, BELOW);
  75:         break;
  76:       case 'J':
  77:         face(pp, BELOW);
  78:         break;
  79:       case 'k':
  80:         move(pp, ABOVE);
  81:         break;
  82:       case 'K':
  83:         face(pp, ABOVE);
  84:         break;
  85:       case 'l':
  86:         move(pp, RIGHT);
  87:         break;
  88:       case 'L':
  89:         face(pp, RIGHT);
  90:         break;
  91:       case 'f':
  92:         fire(pp, SHOT);
  93:         break;
  94:       case 'g':
  95:         fire(pp, GRENADE);
  96:         break;
  97:       case 'F':
  98:         fire(pp, SATCHEL);
  99:         break;
 100:       case 'G':
 101:         fire(pp, BOMB);
 102:         break;
 103: # ifdef OOZE
 104:       case 'o':
 105:         fire_slime(pp, SLIMEREQ);
 106:         break;
 107:       case 'O':
 108:         fire_slime(pp, SSLIMEREQ);
 109:         break;
 110: # endif	OOZE
 111:       case 's':
 112:         scan(pp);
 113:         break;
 114:       case 'c':
 115:         cloak(pp);
 116:         break;
 117:       case 'q':
 118:         (void) strcpy(pp->p_death, "| Quit |");
 119:         break;
 120:     }
 121: }
 122: 
 123: /*
 124:  * move:
 125:  *	Execute a move in the given direction
 126:  */
 127: move(pp, dir)
 128: register PLAYER *pp;
 129: int     dir;
 130: {
 131:     register PLAYER *newp;
 132:     register int    x, y;
 133:     register FLAG   moved;
 134:     register BULLET *bp;
 135: 
 136:     y = pp->p_y;
 137:     x = pp->p_x;
 138: 
 139:     switch (dir) {
 140:       case LEFTS:
 141:         x--;
 142:         break;
 143:       case RIGHT:
 144:         x++;
 145:         break;
 146:       case ABOVE:
 147:         y--;
 148:         break;
 149:       case BELOW:
 150:         y++;
 151:         break;
 152:     }
 153: 
 154:     moved = FALSE;
 155:     switch (Maze[y][x]) {
 156:       case SPACE:
 157: # ifdef RANDOM
 158:       case DOOR:
 159: # endif RANDOM
 160:         moved = TRUE;
 161:         break;
 162:       case WALL1:
 163:       case WALL2:
 164:       case WALL3:
 165: # ifdef REFLECT
 166:       case WALL4:
 167:       case WALL5:
 168: # endif REFLECT
 169:         break;
 170:       case MINE:
 171:       case GMINE:
 172:         if (dir == pp->p_face)
 173:             pickup(pp, y, x, 5, Maze[y][x]);
 174:         else if (opposite(dir, pp->p_face))
 175:             pickup(pp, y, x, 95, Maze[y][x]);
 176:         else
 177:             pickup(pp, y, x, 50, Maze[y][x]);
 178:         Maze[y][x] = SPACE;
 179:         moved = TRUE;
 180:         break;
 181:       case SHOT:
 182:       case GRENADE:
 183:       case SATCHEL:
 184:       case BOMB:
 185:         bp = is_bullet(y, x);
 186:         if (bp != NULL)
 187:             bp->b_expl = TRUE;
 188:         Maze[y][x] = SPACE;
 189:         moved = TRUE;
 190:         break;
 191:       case LEFTS:
 192:       case RIGHT:
 193:       case ABOVE:
 194:       case BELOW:
 195: # ifdef FLY
 196:       case FLYER:
 197: # endif FLY
 198:         if (dir != pp->p_face)
 199:             sendcom(pp, BELL);
 200:         else {
 201:             newp = play_at(y, x);
 202:             checkdam(newp, pp, pp->p_ident, STABDAM, KNIFE);
 203:         }
 204:         break;
 205:     }
 206:     if (moved) {
 207:         if (pp->p_ncshot > 0)
 208:             if (--pp->p_ncshot == MAXNCSHOT) {
 209:                 cgoto(pp, STAT_GUN_ROW, STAT_VALUE_COL);
 210:                 outstr(pp, " ok", 3);
 211:             }
 212:         if (pp->p_undershot) {
 213:             fixshots(pp->p_y, pp->p_x, pp->p_over);
 214:             pp->p_undershot = FALSE;
 215:         }
 216:         drawplayer(pp, FALSE);
 217:         pp->p_over = Maze[y][x];
 218:         pp->p_y = y;
 219:         pp->p_x = x;
 220:         drawplayer(pp, TRUE);
 221:     }
 222: }
 223: 
 224: /*
 225:  * face:
 226:  *	Change the direction the player is facing
 227:  */
 228: face(pp, dir)
 229: register PLAYER *pp;
 230: register int    dir;
 231: {
 232:     if (pp->p_face != dir) {
 233:         pp->p_face = dir;
 234:         drawplayer(pp, TRUE);
 235:     }
 236: }
 237: 
 238: /*
 239:  * fire:
 240:  *	Fire a shot of the given type in the given direction
 241:  */
 242: fire(pp, type)
 243: register PLAYER *pp;
 244: register char   type;
 245: {
 246:     register int    req_index;
 247:     static int  req[4] = { BULREQ, GRENREQ, SATREQ, BOMBREQ };
 248:     static int  shot_type[4] = { SHOT, GRENADE, SATCHEL, BOMB };
 249: 
 250:     if (pp == NULL)
 251:         return;
 252:     if (pp->p_ammo == 0) {
 253:         message(pp, "No more charges.");
 254:         return;
 255:     }
 256:     if (pp->p_ncshot > MAXNCSHOT)
 257:         return;
 258:     if (pp->p_ncshot++ == MAXNCSHOT) {
 259:         cgoto(pp, STAT_GUN_ROW, STAT_VALUE_COL);
 260:         outstr(pp, "   ", 3);
 261:     }
 262:     switch (type) {
 263:       case SHOT:
 264:         req_index = 0;
 265:         break;
 266:       case GRENADE:
 267:         req_index = 1;
 268:         break;
 269:       case SATCHEL:
 270:         req_index = 2;
 271:         break;
 272:       case BOMB:
 273:         req_index = 3;
 274:         break;
 275: # ifdef DEBUG
 276:       default:
 277:         message(pp, "What you do!!!");
 278:         return;
 279: # endif DEBUG
 280:     }
 281:     while (pp->p_ammo < req[req_index])
 282:         req_index--;
 283:     pp->p_ammo -= req[req_index];
 284:     (void) sprintf(Buf, "%3d", pp->p_ammo);
 285:     cgoto(pp, STAT_AMMO_ROW, STAT_VALUE_COL);
 286:     outstr(pp, Buf, 3);
 287: 
 288:     add_shot(shot_type[req_index], pp->p_y, pp->p_x, pp->p_face,
 289:         req[req_index], pp, FALSE, pp->p_face);
 290:     pp->p_undershot = TRUE;
 291: 
 292:     /*
 293: 	 * Show the object to everyone
 294: 	 */
 295:     showexpl(pp->p_y, pp->p_x, shot_type[req_index]);
 296:     for (pp = Player; pp < End_player; pp++)
 297:         sendcom(pp, REFRESH);
 298: # ifdef MONITOR
 299:     for (pp = Monitor; pp < End_monitor; pp++)
 300:         sendcom(pp, REFRESH);
 301: # endif MONITOR
 302: }
 303: 
 304: # ifdef OOZE
 305: /*
 306:  * fire_slime:
 307:  *	Fire a slime shot in the given direction
 308:  */
 309: fire_slime(pp, req)
 310: register PLAYER *pp;
 311: register int    req;
 312: {
 313:     if (pp == NULL)
 314:         return;
 315:     if (pp->p_ammo < req) {
 316:         message(pp, "Not enough charges.");
 317:         return;
 318:     }
 319:     if (pp->p_ncshot > MAXNCSHOT)
 320:         return;
 321:     if (pp->p_ncshot++ == MAXNCSHOT) {
 322:         cgoto(pp, STAT_GUN_ROW, STAT_VALUE_COL);
 323:         outstr(pp, "   ", 3);
 324:     }
 325:     pp->p_ammo -= req;
 326:     (void) sprintf(Buf, "%3d", pp->p_ammo);
 327:     cgoto(pp, STAT_AMMO_ROW, STAT_VALUE_COL);
 328:     outstr(pp, Buf, 3);
 329: 
 330:     add_shot(SLIME, pp->p_y, pp->p_x, pp->p_face, req, pp, FALSE,
 331:         pp->p_face);
 332: 
 333:     /*
 334: 	 * Show the object to everyone
 335: 	 */
 336:     showexpl(pp->p_y, pp->p_x, SLIME);
 337:     for (pp = Player; pp < End_player; pp++)
 338:         sendcom(pp, REFRESH);
 339: # ifdef MONITOR
 340:     for (pp = Monitor; pp < End_monitor; pp++)
 341:         sendcom(pp, REFRESH);
 342: # endif MONITOR
 343: }
 344: # endif	OOZE
 345: 
 346: /*
 347:  * create_shot:
 348:  *	Create a shot with the given properties
 349:  */
 350: add_shot(type, y, x, face, charge, owner, expl, over)
 351: int type;
 352: int y, x;
 353: char    face;
 354: int charge;
 355: PLAYER  *owner;
 356: int expl;
 357: char    over;
 358: {
 359:     register BULLET *bp;
 360: 
 361: # ifdef CONSTANT_MOVE
 362:     /*
 363: 	 * if there are no bullets in flight, set up the alarm
 364: 	 */
 365: 
 366:     if (Bullets == NULL)
 367:         bul_alarm(1);
 368: # endif CONSTANT_MOVE
 369: 
 370:     bp = create_shot(type, y, x, face, charge, owner,
 371:         (owner == NULL) ? NULL : owner->p_ident, expl, over);
 372:     bp->b_next = Bullets;
 373:     Bullets = bp;
 374: }
 375: 
 376: BULLET *
 377: create_shot(type, y, x, face, charge, owner, score, expl, over)
 378: int type;
 379: int y, x;
 380: char    face;
 381: int charge;
 382: PLAYER  *owner;
 383: IDENT   *score;
 384: int expl;
 385: char    over;
 386: {
 387:     register BULLET *bp;
 388: 
 389:     bp = (BULLET *) malloc(sizeof (BULLET));    /* NOSTRICT */
 390:     if (bp == NULL) {
 391:         if (owner != NULL)
 392:             message(owner, "Out of memory");
 393:         return NULL;
 394:     }
 395: 
 396:     bp->b_face = face;
 397:     bp->b_x = x;
 398:     bp->b_y = y;
 399:     bp->b_charge = charge;
 400:     bp->b_owner = owner;
 401:     bp->b_score = score;
 402:     bp->b_type = type;
 403:     bp->b_expl = expl;
 404:     bp->b_over = over;
 405:     bp->b_next = NULL;
 406: 
 407:     return bp;
 408: }
 409: 
 410: /*
 411:  * cloak:
 412:  *	Turn on or increase length of a cloak
 413:  */
 414: cloak(pp)
 415: register PLAYER *pp;
 416: {
 417:     if (pp->p_ammo <= 0) {
 418:         message(pp, "No more charges");
 419:         return;
 420:     }
 421:     (void) sprintf(Buf, "%3d", --pp->p_ammo);
 422:     cgoto(pp, STAT_AMMO_ROW, STAT_VALUE_COL);
 423:     outstr(pp, Buf, 3);
 424: 
 425:     pp->p_cloak += CLOAKLEN;
 426:     cgoto(pp, STAT_CLOAK_ROW, STAT_VALUE_COL);
 427:     outstr(pp, " on", 3);
 428: 
 429:     if (pp->p_scan >= 0) {
 430:         pp->p_scan = -1;
 431:         cgoto(pp, STAT_SCAN_ROW, STAT_VALUE_COL);
 432:         outstr(pp, "   ", 3);
 433:     }
 434: 
 435:     showstat(pp);
 436: }
 437: 
 438: /*
 439:  * scan:
 440:  *	Turn on or increase length of a scan
 441:  */
 442: scan(pp)
 443: register PLAYER *pp;
 444: {
 445:     if (pp->p_ammo <= 0) {
 446:         message(pp, "No more charges");
 447:         return;
 448:     }
 449:     (void) sprintf(Buf, "%3d", --pp->p_ammo);
 450:     cgoto(pp, STAT_AMMO_ROW, STAT_VALUE_COL);
 451:     outstr(pp, Buf, 3);
 452: 
 453:     pp->p_scan += SCANLEN;
 454:     cgoto(pp, STAT_SCAN_ROW, STAT_VALUE_COL);
 455:     outstr(pp, " on", 3);
 456: 
 457:     if (pp->p_cloak >= 0) {
 458:         pp->p_cloak = -1;
 459:         cgoto(pp, STAT_CLOAK_ROW, STAT_VALUE_COL);
 460:         outstr(pp, "   ", 3);
 461:     }
 462: 
 463:     showstat(pp);
 464: }
 465: 
 466: /*
 467:  * pickup:
 468:  *	check whether the object blew up or whether he picked it up
 469:  */
 470: pickup(pp, y, x, prob, obj)
 471: register PLAYER *pp;
 472: register int    y, x;
 473: int     prob;
 474: int     obj;
 475: {
 476:     register int    req;
 477: 
 478:     switch (obj) {
 479:       case MINE:
 480:         req = BULREQ;
 481:         break;
 482:       case GMINE:
 483:         req = GRENREQ;
 484:         break;
 485:       default:
 486:         abort();
 487:     }
 488:     if (rand_num(100) < prob)
 489:         add_shot(obj, y, x, LEFTS, req, (PLAYER *) NULL,
 490:             TRUE, pp->p_face);
 491:     else {
 492:         pp->p_ammo += req;
 493:         (void) sprintf(Buf, "%3d", pp->p_ammo);
 494:         cgoto(pp, STAT_AMMO_ROW, STAT_VALUE_COL);
 495:         outstr(pp, Buf, 3);
 496:     }
 497: }

Defined functions

Defined macros