battle.c

   1 #include <unistd.h>
   2 #include "sst.h"
   3
   4 void doshield(int i)
   5 {
   6     int key;
   7     enum {NONE, SHUP, SHDN, NRG} action = NONE;
   8
   9     ididit = 0;
  10
  11     if (i == 2) action = SHUP;
  12     else {
  13         key = scan();
  14         if (key == IHALPHA) {
  15             if (isit("transfer"))
  16                 action = NRG;
  17             else {
  18                 chew();
  19                 if (game.damage[DSHIELD]) {
  20                     prout("Shields damaged and down.");
  21                     return;
  22                 }
  23                 if (isit("up"))
  24                     action = SHUP;
  25                 else if (isit("down"))
  26                     action = SHDN;
  27             }
  28         }
  29         if (action==NONE) {
  30             proutn("Do you wish to change shield energy? ");
  31             if (ja()) {
  32                 proutn("Energy to transfer to shields- ");
  33                 action = NRG;
  34             }
  35             else if (game.damage[DSHIELD]) {
  36                 prout("Shields damaged and down.");
  37                 return;
  38             }
  39             else if (shldup) {
  40                 proutn("Shields are up. Do you want them down? ");
  41                 if (ja()) action = SHDN;
  42                 else {
  43                     chew();
  44                     return;
  45                 }
  46             }
  47             else {
  48                 proutn("Shields are down. Do you want them up? ");
  49                 if (ja()) action = SHUP;
  50                 else {
  51                     chew();
  52                     return;
  53                 }
  54             }
  55         }
  56     }
  57     switch (action) {
  58     case SHUP: /* raise shields */
  59         if (shldup) {
  60             prout("Shields already up.");
  61             return;
  62         }
  63         shldup = 1;
  64         shldchg = 1;
  65         if (condit != IHDOCKED) energy -= 50.0;
  66         prout("Shields raised.");
  67         if (energy <= 0) {
  68             skip(1);
  69             prout("Shields raising uses up last of energy.");
  70             finish(FNRG);
  71             return;
  72         }
  73         ididit=1;
  74         return;
  75     case SHDN:
  76         if (shldup==0) {
  77             prout("Shields already down.");
  78             return;
  79         }
  80         shldup=0;
  81         shldchg=1;
  82         prout("Shields lowered.");
  83         ididit=1;
  84         return;
  85     case NRG:
  86         while (scan() != IHREAL) {
  87             chew();
  88             proutn("Energy to transfer to shields- ");
  89         }
  90         chew();
  91         if (aaitem==0) return;
  92         if (aaitem > energy) {
  93             prout("Insufficient ship energy.");
  94             return;
  95         }
  96         ididit = 1;
  97         if (shield+aaitem >= inshld) {
  98             prout("Shield energy maximized.");
  99             if (shield+aaitem > inshld) {
 100                 prout("Excess energy requested returned to ship energy");
 101             }
 102             energy -= inshld-shield;
 103             shield = inshld;
 104             return;
 105         }
 106         if (aaitem < 0.0 && energy-aaitem > inenrg) {
 107             /* Prevent shield drain loophole */
 108             skip(1);
 109             prout("Engineering to bridge--");
 110             prout("  Scott here. Power circuit problem, Captain.");
 111             prout("  I can't drain the shields.");
 112             ididit = 0;
 113             return;
 114         }
 115         if (shield+aaitem < 0) {
 116             prout("All shield energy transferred to ship.");
 117             energy += shield;
 118             shield = 0.0;
 119             return;
 120         }
 121         proutn("Scotty- \"");
 122         if (aaitem > 0)
 123             prout("Transferring energy to shields.\"");
 124         else
 125             prout("Draining energy from shields.\"");
 126         shield += aaitem;
 127         energy -= aaitem;
 128         return;
 129     case NONE:; /* avoid gcc warning */
 130     }
 131 }
 132
 133 void ram(int ibumpd, int ienm, int ix, int iy)
 134 {
 135     double type = 1.0, extradm;
 136     int icas, l;
 137
 138     prouts("***RED ALERT!  RED ALERT!");
 139     skip(1);
 140     prout("***COLLISION IMMINENT.");
 141     skip(2);
 142     proutn("***");
 143     crmshp();
 144     switch (ienm) {
 145     case IHR: type = 1.5; break;
 146     case IHC: type = 2.0; break;
 147     case IHS: type = 2.5; break;
 148     case IHT: type = 0.5; break;
 149     case IHQUEST: type = 4.0; break;
 150     }
 151     proutn(ibumpd ? " rammed by " : " rams ");
 152     crmena(0, ienm, 2, ix, iy);
 153     if (ibumpd) proutn(" (original position)");
 154     skip(1);
 155     deadkl(ix, iy, ienm, sectx, secty);
 156     proutn("***");
 157     crmshp();
 158     prout(" heavily damaged.");
 159     icas = 10.0+20.0*Rand();
 160     prout("***Sickbay reports %d casualties", icas);
 161     casual += icas;
 162     for (l=0; l < NDEVICES; l++) {
 163         if (l == DDRAY)
 164             continue; // Don't damage deathray
 165         if (game.damage[l] < 0)
 166             continue;
 167         extradm = (10.0*type*Rand()+1.0)*damfac;
 168         game.damage[l] += Time + extradm; /* Damage for at least time of travel! */
 169     }
 170     shldup = 0;
 171     if (game.state.remkl) {
 172         pause_game(2);
 173         dreprt();
 174     }
 175     else finish(FWON);
 176     return;
 177 }
 178
 179 void torpedo(double course, double r, int inx, int iny, double *hit, int i, int n)
 180 {
 181     int l, iquad=0, ix=0, iy=0, jx=0, jy=0, shoved=0, ll;
 182
 183     double ac=course + 0.25*r;
 184     double angle = (15.0-ac)*0.5235988;
 185     double bullseye = (15.0 - course)*0.5235988;
 186     double deltax=-sin(angle), deltay=cos(angle), x=inx, y=iny, bigger;
 187     double ang, temp, xx, yy, kp, h1;
 188
 189     bigger = fabs(deltax);
 190     if (fabs(deltay) > bigger) bigger = fabs(deltay);
 191     deltax /= bigger;
 192     deltay /= bigger;
 193     if (game.damage[DSRSENS]==0 || condit==IHDOCKED)
 194         setwnd(srscan_window);
 195     else
 196         setwnd(message_window);
 197     /* Loop to move a single torpedo */
 198     for (l=1; l <= 15; l++) {
 199         x += deltax;
 200         ix = x + 0.5;
 201         y += deltay;
 202         iy = y + 0.5;
 203         if (!VALID_SECTOR(ix, iy)) break;
 204         iquad=game.quad[ix][iy];
 205         tracktorpedo(ix, iy, l, i, n, iquad);
 206         if (iquad==IHDOT) continue;
 207         /* hit something */
 208         setwnd(message_window);
 209         skip(1);        /* start new line after text track */
 210         switch(iquad) {
 211         case IHE: /* Hit our ship */
 212         case IHF:
 213             skip(1);
 214             proutn("Torpedo hits ");
 215             crmshp();
 216             prout(".");
 217             *hit = 700.0 + 100.0*Rand() -
 218                 1000.0*sqrt(square(ix-inx)+square(iy-iny))*
 219                 fabs(sin(bullseye-angle));
 220             *hit = fabs(*hit);
 221             newcnd(); /* we're blown out of dock */
 222             /* We may be displaced. */
 223             if (landed==1 || condit==IHDOCKED) return; /* Cheat if on a planet */
 224             ang = angle + 2.5*(Rand()-0.5);
 225             temp = fabs(sin(ang));
 226             if (fabs(cos(ang)) > temp) temp = fabs(cos(ang));
 227             xx = -sin(ang)/temp;
 228             yy = cos(ang)/temp;
 229             jx=ix+xx+0.5;
 230             jy=iy+yy+0.5;
 231             if (!VALID_SECTOR(jx, jy)) return;
 232             if (game.quad[jx][jy]==IHBLANK) {
 233                 finish(FHOLE);
 234                 return;
 235             }
 236             if (game.quad[jx][jy]!=IHDOT) {
 237                 /* can't move into object */
 238                 return;
 239             }
 240             sectx = jx;
 241             secty = jy;
 242             crmshp();
 243             shoved = 1;
 244             break;
 245
 246         case IHC: /* Hit a commander */
 247         case IHS:
 248             if (Rand() <= 0.05) {
 249                 crmena(1, iquad, 2, ix, iy);
 250                 prout(" uses anti-photon device;");
 251                 prout("   torpedo neutralized.");
 252                 return;
 253             }
 254         case IHR: /* Hit a regular enemy */
 255         case IHK:
 256             /* find the enemy */
 257             for_local_enemies(ll)
 258                 if (ix==game.kx[ll] && iy==game.ky[ll]) break;
 259             kp = fabs(game.kpower[ll]);
 260             h1 = 700.0 + 100.0*Rand() -
 261                 1000.0*sqrt(square(ix-inx)+square(iy-iny))*
 262                 fabs(sin(bullseye-angle));
 263             h1 = fabs(h1);
 264             if (kp < h1) h1 = kp;
 265             game.kpower[ll] -= (game.kpower[ll]<0 ? -h1 : h1);
 266             if (game.kpower[ll] == 0) {
 267                 deadkl(ix, iy, iquad, ix, iy);
 268                 return;
 269             }
 270             crmena(1, iquad, 2, ix, iy);
 271             /* If enemy damaged but not destroyed, try to displace */
 272             ang = angle + 2.5*(Rand()-0.5);
 273             temp = fabs(sin(ang));
 274             if (fabs(cos(ang)) > temp) temp = fabs(cos(ang));
 275             xx = -sin(ang)/temp;
 276             yy = cos(ang)/temp;
 277             jx=ix+xx+0.5;
 278             jy=iy+yy+0.5;
 279             if (!VALID_SECTOR(jx, jy)) {
 280                 prout(" damaged but not destroyed.");
 281                 return;
 282             }
 283             if (game.quad[jx][jy]==IHBLANK) {
 284                 prout(" buffeted into black hole.");
 285                 deadkl(ix, iy, iquad, jx, jy);
 286                 return;
 287             }
 288             if (game.quad[jx][jy]!=IHDOT) {
 289                 /* can't move into object */
 290                 prout(" damaged but not destroyed.");
 291                 return;
 292             }
 293             proutn(" damaged--");
 294             game.kx[ll] = jx;
 295             game.ky[ll] = jy;
 296             shoved = 1;
 297             break;
 298         case IHB: /* Hit a base */
 299             skip(1);
 300             prout("***STARBASE DESTROYED..");
 301             for_starbases(ll) {
 302                 if (game.state.baseqx[ll]==quadx && game.state.baseqy[ll]==quady) {
 303                     game.state.baseqx[ll]=game.state.baseqx[game.state.rembase];
 304                     game.state.baseqy[ll]=game.state.baseqy[game.state.rembase];
 305                     break;
 306                 }
 307             }
 308             game.quad[ix][iy]=IHDOT;
 309             game.state.rembase--;
 310             basex=basey=0;
 311             game.state.galaxy[quadx][quady].starbase--;
 312             game.state.chart[quadx][quady].starbase--;
 313             game.state.basekl++;
 314             newcnd();
 315             return;
 316         case IHP: /* Hit a planet */
 317             crmena(1, iquad, 2, ix, iy);
 318             prout(" destroyed.");
 319             game.state.nplankl++;
 320             game.state.galaxy[quadx][quady].planets--;
 321             DESTROY(&game.state.plnets[iplnet]);
 322             iplnet = 0;
 323             plnetx = plnety = 0;
 324             game.quad[ix][iy] = IHDOT;
 325             if (landed==1) {
 326                 /* captain perishes on planet */
 327                 finish(FDPLANET);
 328             }
 329             return;
 330         case IHSTAR: /* Hit a star */
 331             if (Rand() > 0.10) {
 332                 nova(ix, iy);
 333                 return;
 334             }
 335             crmena(1, IHSTAR, 2, ix, iy);
 336             prout(" unaffected by photon blast.");
 337             return;
 338         case IHQUEST: /* Hit a thingy */
 339             if (!(game.options & OPTION_THINGY) || Rand()>0.7) {
 340                 skip(1);
 341                 prouts("AAAAIIIIEEEEEEEEAAAAAAAAUUUUUGGGGGHHHHHHHHHHHH!!!");
 342                 skip(1);
 343                 prouts("    HACK!     HACK!    HACK!        *CHOKE!*  ");
 344                 skip(1);
 345                 proutn("Mr. Spock-");
 346                 prouts("  \"Fascinating!\"");
 347                 skip(1);
 348                 deadkl(ix, iy, iquad, ix, iy);
 349             } else {
 350                 /*
 351                  * Stas Sergeev added the possibility that
 352                  * you can shove the Thingy abd piss it off.
 353                  * It then becomes an enemy and may fire at you.
 354                  */
 355                 iqengry=1;
 356                 shoved=1;
 357             }
 358             return;
 359         case IHBLANK: /* Black hole */
 360             skip(1);
 361             crmena(1, IHBLANK, 2, ix, iy);
 362             prout(" swallows torpedo.");
 363             return;
 364         case IHWEB: /* hit the web */
 365             skip(1);
 366             prout("***Torpedo absorbed by Tholian web.");
 367             return;
 368         case IHT:  /* Hit a Tholian */
 369             h1 = 700.0 + 100.0*Rand() -
 370                 1000.0*sqrt(square(ix-inx)+square(iy-iny))*
 371                 fabs(sin(bullseye-angle));
 372             h1 = fabs(h1);
 373             if (h1 >= 600) {
 374                 game.quad[ix][iy] = IHDOT;
 375                 ithere = 0;
 376                 ithx = ithy = 0;
 377                 deadkl(ix, iy, iquad, ix, iy);
 378                 return;
 379             }
 380             skip(1);
 381             crmena(1, IHT, 2, ix, iy);
 382             if (Rand() > 0.05) {
 383                 prout(" survives photon blast.");
 384                 return;
 385             }
 386             prout(" disappears.");
 387             game.quad[ix][iy] = IHWEB;
 388             ithere = ithx = ithy = 0;
 389             nenhere--;
 390             {
 391                 int dum, my;
 392                 dropin(IHBLANK, &dum, &my);
 393             }
 394             return;
 395
 396         default: /* Problem! */
 397             skip(1);
 398             proutn("Don't know how to handle collision with ");
 399             crmena(1, iquad, 2, ix, iy);
 400             skip(1);
 401             return;
 402         }
 403         break;
 404     }
 405     if(curwnd!=message_window) {
 406         setwnd(message_window);
 407     }
 408     if (shoved) {
 409         game.quad[jx][jy]=iquad;
 410         game.quad[ix][iy]=IHDOT;
 411         prout(" displaced by blast to %s ", cramlc(sector, jx, jy));
 412         for_local_enemies(ll)
 413             game.kdist[ll] = game.kavgd[ll] = sqrt(square(sectx-game.kx[ll])+square(secty-game.ky[ll]));
 414         sortkl();
 415         return;
 416     }
 417     skip(1);
 418     prout("Torpedo missed.");
 419     return;
 420 }
 421
 422 static void fry(double hit)
 423 {
 424     double ncrit, extradm;
 425     int ktr=1, l, ll, j, cdam[NDEVICES];
 426
 427     /* a critical hit occured */
 428     if (hit < (275.0-25.0*skill)*(1.0+0.5*Rand())) return;
 429
 430     ncrit = 1.0 + hit/(500.0+100.0*Rand());
 431     proutn("***CRITICAL HIT--");
 432     /* Select devices and cause damage */
 433     for (l = 0; l < ncrit && 0 < NDEVICES; l++) {
 434         do {
 435             j = NDEVICES*Rand();
 436             /* Cheat to prevent shuttle damage unless on ship */
 437         } while
 438               (game.damage[j]<0.0 || (j==DSHUTTL && iscraft!=1) || j==DDRAY);
 439         cdam[l] = j;
 440         extradm = (hit*damfac)/(ncrit*(75.0+25.0*Rand()));
 441         game.damage[j] += extradm;
 442         if (l > 0) {
 443             for (ll=2; ll<=l && j != cdam[ll-1]; ll++) ;
 444             if (ll<=l) continue;
 445             ktr += 1;
 446             if (ktr==3) skip(1);
 447             proutn(" and ");
 448         }
 449         proutn(device[j]);
 450     }
 451     prout(" damaged.");
 452     if (game.damage[DSHIELD] && shldup) {
 453         prout("***Shields knocked down.");
 454         shldup=0;
 455     }
 456 }
 457
 458 void attack(int torps_ok)
 459 {
 460     /* torps_ok == 0 forces use of phasers in an attack */
 461     int percent, ihurt=0, l, i=0, jx, jy, iquad, itflag;
 462     int atackd = 0, attempt = 0;
 463     double hit;
 464     double pfac, dustfac, hitmax=0.0, hittot=0.0, chgfac=1.0, r;
 465
 466     iattak = 1;
 467     if (alldone) return;
 468 #ifdef DEBUG
 469     if (idebug) prout("ATTACK!");
 470 #endif
 471
 472     if (ithere) movetho();
 473
 474     if (neutz) { /* The one chance not to be attacked */
 475         neutz = 0;
 476         return;
 477     }
 478     if ((((comhere || ishere) && (justin == 0)) || skill == SKILL_EMERITUS)&&(torps_ok!=0)) movcom();
 479     if (nenhere==0 || (nenhere==1 && iqhere && iqengry==0)) return;
 480     pfac = 1.0/inshld;
 481     if (shldchg == 1) chgfac = 0.25+0.5*Rand();
 482     skip(1);
 483     if (skill <= SKILL_FAIR) i = 2;
 484     for_local_enemies(l) {
 485         if (game.kpower[l] < 0) continue;       /* too weak to attack */
 486         /* compute hit strength and diminsh shield power */
 487         r = Rand();
 488         /* Increase chance of photon torpedos if docked or enemy energy low */
 489         if (condit == IHDOCKED) r *= 0.25;
 490         if (game.kpower[l] < 500) r *= 0.25;
 491         jx = game.kx[l];
 492         jy = game.ky[l];
 493         iquad = game.quad[jx][jy];
 494         if (iquad==IHT || (iquad==IHQUEST && !iqengry)) continue;
 495         itflag = (iquad == IHK && r > 0.0005) || !torps_ok ||
 496             (iquad==IHC && r > 0.015) ||
 497             (iquad==IHR && r > 0.3) ||
 498             (iquad==IHS && r > 0.07) ||
 499             (iquad==IHQUEST && r > 0.05);
 500         if (itflag) {
 501             /* Enemy uses phasers */
 502             if (condit == IHDOCKED) continue; /* Don't waste the effort! */
 503             attempt = 1; /* Attempt to attack */
 504             dustfac = 0.8+0.05*Rand();
 505             hit = game.kpower[l]*pow(dustfac,game.kavgd[l]);
 506             game.kpower[l] *= 0.75;
 507         }
 508         else { /* Enemy used photon torpedo */
 509             double course = 1.90985*atan2((double)secty-jy, (double)jx-sectx);
 510             hit = 0;
 511             proutn("***TORPEDO INCOMING");
 512             if (game.damage[DSRSENS] <= 0.0) {
 513                 proutn(" From ");
 514                 crmena(0, iquad, i, jx, jy);
 515             }
 516             attempt = 1;
 517             prout("  ");
 518             r = (Rand()+Rand())*0.5 -0.5;
 519             r += 0.002*game.kpower[l]*r;
 520             torpedo(course, r, jx, jy, &hit, 1, 1);
 521             if (game.state.remkl==0)
 522                 finish(FWON); /* Klingons did themselves in! */
 523             if (game.state.galaxy[quadx][quady].supernova || alldone)
 524                 return; /* Supernova or finished */
 525             if (hit == 0) continue;
 526         }
 527         if (shldup != 0 || shldchg != 0 || condit==IHDOCKED) {
 528             /* shields will take hits */
 529             double absorb, hitsh, propor = pfac*shield*(condit==IHDOCKED ? 2.1 : 1.0);
 530             if(propor < 0.1) propor = 0.1;
 531             hitsh = propor*chgfac*hit+1.0;
 532             atackd=1;
 533             absorb = 0.8*hitsh;
 534             if (absorb > shield) absorb = shield;
 535             shield -= absorb;
 536             hit -= hitsh;
 537             if (condit==IHDOCKED) dock(0);
 538             if (propor > 0.1 && hit < 0.005*energy) continue;
 539         }
 540         /* It's a hit -- print out hit size */
 541         atackd = 1; /* We weren't going to check casualties, etc. if
 542                        shields were down for some strange reason. This
 543                        doesn't make any sense, so I've fixed it */
 544         ihurt = 1;
 545         proutn("%d unit hit", (int)hit);
 546         if ((game.damage[DSRSENS] > 0 && itflag) || skill<=SKILL_FAIR) {
 547             proutn(" on the ");
 548             crmshp();
 549         }
 550         if (game.damage[DSRSENS] <= 0.0 && itflag) {
 551             proutn(" from ");
 552             crmena(0, iquad, i, jx, jy);
 553         }
 554         skip(1);
 555         /* Decide if hit is critical */
 556         if (hit > hitmax) hitmax = hit;
 557         hittot += hit;
 558         fry(hit);
 559         prout("Hit %g energy %g", hit, energy);
 560         energy -= hit;
 561         if (condit==IHDOCKED)
 562             dock(0);
 563     }
 564     if (energy <= 0) {
 565         /* Returning home upon your shield, not with it... */
 566         finish(FBATTLE);
 567         return;
 568     }
 569     if (attempt == 0 && condit == IHDOCKED)
 570         prout("***Enemies decide against attacking your ship.");
 571     if (atackd == 0) return;
 572     percent = 100.0*pfac*shield+0.5;
 573     if (ihurt==0) {
 574         /* Shields fully protect ship */
 575         proutn("Enemy attack reduces shield strength to ");
 576     }
 577     else {
 578         /* Print message if starship suffered hit(s) */
 579         skip(1);
 580         proutn("Energy left %2d    shields ", (int)energy);
 581         if (shldup) proutn("up ");
 582         else if (game.damage[DSHIELD] == 0) proutn("down ");
 583         else proutn("damaged, ");
 584     }
 585     prout("%d%%,   torpedoes left %d", percent, torps);
 586     /* Check if anyone was hurt */
 587     if (hitmax >= 200 || hittot >= 500) {
 588         int icas= hittot*Rand()*0.015;
 589         if (icas >= 2) {
 590             skip(1);
 591             prout("Mc Coy-  \"Sickbay to bridge.  We suffered %d casualties", icas);
 592             prout("   in that last attack.\"");
 593             casual += icas;
 594         }
 595     }
 596     /* After attack, reset average distance to enemies */
 597     for_local_enemies(l)
 598         game.kavgd[l] = game.kdist[l];
 599     sortkl();
 600     return;
 601 }
 602
 603 void deadkl(int ix, int iy, int type, int ixx, int iyy)
 604 {
 605     /* Added ixx and iyy allow enemy to "move" before dying */
 606
 607     int i,j;
 608
 609     skip(1);
 610     crmena(1, type, 2, ixx, iyy);
 611     /* Decide what kind of enemy it is and update approriately */
 612     if (type == IHR) {
 613         /* chalk up a Romulan */
 614         game.state.galaxy[quadx][quady].romulans--;
 615         irhere--;
 616         game.state.nromkl++;
 617         game.state.nromrem--;
 618     }
 619     else if (type == IHT) {
 620         /* Killed a Tholian */
 621         ithere = 0;
 622     }
 623     else if (type == IHQUEST) {
 624         /* Killed a Thingy */
 625         iqhere=iqengry=thingx=thingy=0;
 626     }
 627     else {
 628         /* Some type of a Klingon */
 629         game.state.galaxy[quadx][quady].klingons--;
 630         klhere--;
 631         game.state.remkl--;
 632         switch (type) {
 633         case IHC:
 634             comhere = 0;
 635             for_commanders (i)
 636                 if (game.state.cx[i]==quadx && game.state.cy[i]==quady) break;
 637             game.state.cx[i] = game.state.cx[game.state.remcom];
 638             game.state.cy[i] = game.state.cy[game.state.remcom];
 639             game.state.cx[game.state.remcom] = 0;
 640             game.state.cy[game.state.remcom] = 0;
 641             game.state.remcom--;
 642             game.future[FTBEAM] = FOREVER;
 643             if (game.state.remcom != 0)
 644                 game.future[FTBEAM] = game.state.date + expran(1.0*incom/game.state.remcom);
 645             game.state.killc++;
 646             break;
 647         case IHK:
 648             game.state.killk++;
 649             break;
 650         case IHS:
 651             game.state.nscrem = ishere = game.state.isx = game.state.isy = isatb = iscate = 0;
 652             game.state.nsckill = 1;
 653             game.future[FSCMOVE] = game.future[FSCDBAS] = FOREVER;
 654             break;
 655         }
 656     }
 657
 658     /* For each kind of enemy, finish message to player */
 659     prout(" destroyed.");
 660     game.quad[ix][iy] = IHDOT;
 661     if (game.state.remkl==0) return;
 662
 663     game.state.remtime = game.state.remres/(game.state.remkl + 4*game.state.remcom);
 664
 665     /* Remove enemy ship from arrays describing local conditions */
 666     if (game.future[FCDBAS] < FOREVER && batx==quadx && baty==quady && type==IHC)
 667         game.future[FCDBAS] = FOREVER;
 668     for_local_enemies(i)
 669         if (game.kx[i]==ix && game.ky[i]==iy) break;
 670     nenhere--;
 671     if (i <= nenhere)  {
 672         for (j=i; j<=nenhere; j++) {
 673             game.kx[j] = game.kx[j+1];
 674             game.ky[j] = game.ky[j+1];
 675             game.kpower[j] = game.kpower[j+1];
 676             game.kavgd[j] = game.kdist[j] = game.kdist[j+1];
 677         }
 678     }
 679     game.kx[nenhere+1] = 0;
 680     game.ky[nenhere+1] = 0;
 681     game.kdist[nenhere+1] = 0;
 682     game.kavgd[nenhere+1] = 0;
 683     game.kpower[nenhere+1] = 0;
 684     return;
 685 }
 686
 687 static int targetcheck(double x, double y, double *course)
 688 {
 689     double deltx, delty;
 690     /* Return TRUE if target is invalid */
 691     if (!VALID_SECTOR(x, y)) {
 692         huh();
 693         return 1;
 694     }
 695     deltx = 0.1*(y - secty);
 696     delty = 0.1*(sectx - x);
 697     if (deltx==0 && delty== 0) {
 698         skip(1);
 699         prout("Spock-  \"Bridge to sickbay.  Dr. McCoy,");
 700         prout("  I recommend an immediate review of");
 701         prout("  the Captain's psychological profile.\"");
 702         chew();
 703         return 1;
 704     }
 705     *course = 1.90985932*atan2(deltx, delty);
 706     return 0;
 707 }
 708
 709 void photon(void)
 710 {
 711     double targ[4][3], course[4];
 712     double r, dummy;
 713     int key, n, i, osuabor;
 714
 715     ididit = 0;
 716
 717     if (game.damage[DPHOTON]) {
 718         prout("Photon tubes damaged.");
 719         chew();
 720         return;
 721     }
 722     if (torps == 0) {
 723         prout("No torpedoes left.");
 724         chew();
 725         return;
 726     }
 727     key = scan();
 728     for (;;) {
 729         if (key == IHALPHA) {
 730             huh();
 731             return;
 732         }
 733         else if (key == IHEOL) {
 734             prout("%d torpedoes left.", torps);
 735             proutn("Number of torpedoes to fire- ");
 736             key = scan();
 737         }
 738         else /* key == IHREAL */ {
 739             n = aaitem + 0.5;
 740             if (n <= 0) { /* abort command */
 741                 chew();
 742                 return;
 743             }
 744             if (n > 3) {
 745                 chew();
 746                 prout("Maximum of 3 torpedoes per burst.");
 747                 key = IHEOL;
 748                 return;
 749             }
 750             if (n <= torps) break;
 751             chew();
 752             key = IHEOL;
 753         }
 754     }
 755     for (i = 1; i <= n; i++) {
 756         key = scan();
 757         if (i==1 && key == IHEOL) {
 758             break;      /* we will try prompting */
 759         }
 760         if (i==2 && key == IHEOL) {
 761             /* direct all torpedoes at one target */
 762             while (i <= n) {
 763                 targ[i][1] = targ[1][1];
 764                 targ[i][2] = targ[1][2];
 765                 course[i] = course[1];
 766                 i++;
 767             }
 768             break;
 769         }
 770         if (key != IHREAL) {
 771             huh();
 772             return;
 773         }
 774         targ[i][1] = aaitem;
 775         key = scan();
 776         if (key != IHREAL) {
 777             huh();
 778             return;
 779         }
 780         targ[i][2] = aaitem;
 781         if (targetcheck(targ[i][1], targ[i][2], &course[i])) return;
 782     }
 783     chew();
 784     if (i == 1 && key == IHEOL) {
 785         /* prompt for each one */
 786         for (i = 1; i <= n; i++) {
 787             proutn("Target sector for torpedo number %d- ", i);
 788             key = scan();
 789             if (key != IHREAL) {
 790                 huh();
 791                 return;
 792             }
 793             targ[i][1] = aaitem;
 794             key = scan();
 795             if (key != IHREAL) {
 796                 huh();
 797                 return;
 798             }
 799             targ[i][2] = aaitem;
 800             chew();
 801             if (targetcheck(targ[i][1], targ[i][2], &course[i])) return;
 802         }
 803     }
 804     ididit = 1;
 805     /* Loop for moving <n> torpedoes */
 806     osuabor = 0;
 807     for (i = 1; i <= n && !osuabor; i++) {
 808         if (condit != IHDOCKED) torps--;
 809         r = (Rand()+Rand())*0.5 -0.5;
 810         if (fabs(r) >= 0.47) {
 811             /* misfire! */
 812             r = (Rand()+1.2) * r;
 813             if (n>1) {
 814                 prouts("***TORPEDO NUMBER %d MISFIRES", i);
 815             }
 816             else prouts("***TORPEDO MISFIRES.");
 817             skip(1);
 818             if (i < n)
 819                 prout("  Remainder of burst aborted.");
 820             osuabor=1;
 821             if (Rand() <= 0.2) {
 822                 prout("***Photon tubes damaged by misfire.");
 823                 game.damage[DPHOTON] = damfac*(1.0+2.0*Rand());
 824                 break;
 825             }
 826         }
 827         if (shldup || condit == IHDOCKED)
 828             r *= 1.0 + 0.0001*shield;
 829         torpedo(course[i], r, sectx, secty, &dummy, i, n);
 830         if (alldone || game.state.galaxy[quadx][quady].supernova)
 831             return;
 832     }
 833     if (game.state.remkl==0) finish(FWON);
 834 }
 835
 836
 837
 838 static void overheat(double rpow)
 839 {
 840     if (rpow > 1500) {
 841         double chekbrn = (rpow-1500.)*0.00038;
 842         if (Rand() <= chekbrn) {
 843             prout("Weapons officer Sulu-  \"Phasers overheated, sir.\"");
 844             game.damage[DPHASER] = damfac*(1.0 + Rand()) * (1.0+chekbrn);
 845         }
 846     }
 847 }
 848
 849 static int checkshctrl(double rpow)
 850 {
 851     double hit;
 852     int icas;
 853
 854     skip(1);
 855     if (Rand() < .998) {
 856         prout("Shields lowered.");
 857         return 0;
 858     }
 859     /* Something bad has happened */
 860     prouts("***RED ALERT!  RED ALERT!");
 861     skip(2);
 862     hit = rpow*shield/inshld;
 863     energy -= rpow+hit*0.8;
 864     shield -= hit*0.2;
 865     if (energy <= 0.0) {
 866         prouts("Sulu-  \"Captain! Shield malf***********************\"");
 867         skip(1);
 868         stars();
 869         finish(FPHASER);
 870         return 1;
 871     }
 872     prouts("Sulu-  \"Captain! Shield malfunction! Phaser fire contained!\"");
 873     skip(2);
 874     prout("Lt. Uhura-  \"Sir, all decks reporting damage.\"");
 875     icas = hit*Rand()*0.012;
 876     skip(1);
 877     fry(0.8*hit);
 878     if (icas) {
 879         skip(1);
 880         prout("McCoy to bridge- \"Severe radiation burns, Jim.");
 881         prout("  %d casualties so far.\"", icas);
 882         casual -= icas;
 883     }
 884     skip(1);
 885     prout("Phaser energy dispersed by shields.");
 886     prout("Enemy unaffected.");
 887     overheat(rpow);
 888     return 1;
 889 }
 890
 891
 892 void phasers(void)
 893 {
 894     double hits[21], rpow=0, extra, powrem, over, temp;
 895     int kz = 0, k=1, i, irec=0; /* Cheating inhibitor */
 896     int ifast=0, no=0, ipoop=1, msgflag = 1;
 897     enum {NOTSET, MANUAL, FORCEMAN, AUTOMATIC} automode = NOTSET;
 898     int key=0;
 899
 900     skip(1);
 901     /* SR sensors and Computer */
 902     if (game.damage[DSRSENS]+game.damage[DCOMPTR] > 0) ipoop = 0;
 903     if (condit == IHDOCKED) {
 904         prout("Phasers can't be fired through base shields.");
 905         chew();
 906         return;
 907     }
 908     if (game.damage[DPHASER] != 0) {
 909         prout("Phaser control damaged.");
 910         chew();
 911         return;
 912     }
 913     if (shldup) {
 914         if (game.damage[DSHCTRL]) {
 915             prout("High speed shield control damaged.");
 916             chew();
 917             return;
 918         }
 919         if (energy <= 200.0) {
 920             prout("Insufficient energy to activate high-speed shield control.");
 921             chew();
 922             return;
 923         }
 924         prout("Weapons Officer Sulu-  \"High-speed shield control enabled, sir.\"");
 925         ifast = 1;
 926
 927     }
 928     /* Original code so convoluted, I re-did it all */
 929     while (automode==NOTSET) {
 930         key=scan();
 931         if (key == IHALPHA) {
 932             if (isit("manual")) {
 933                 if (nenhere==0) {
 934                     prout("There is no enemy present to select.");
 935                     chew();
 936                     key = IHEOL;
 937                     automode=AUTOMATIC;
 938                 }
 939                 else {
 940                     automode = MANUAL;
 941                     key = scan();
 942                 }
 943             }
 944             else if (isit("automatic")) {
 945                 if ((!ipoop) && nenhere != 0) {
 946                     automode = FORCEMAN;
 947                 }
 948                 else {
 949                     if (nenhere==0)
 950                         prout("Energy will be expended into space.");
 951                     automode = AUTOMATIC;
 952                     key = scan();
 953                 }
 954             }
 955             else if (isit("no")) {
 956                 no = 1;
 957             }
 958             else {
 959                 huh();
 960                 return;
 961             }
 962         }
 963         else if (key == IHREAL) {
 964             if (nenhere==0) {
 965                 prout("Energy will be expended into space.");
 966                 automode = AUTOMATIC;
 967             }
 968             else if (!ipoop)
 969                 automode = FORCEMAN;
 970             else
 971                 automode = AUTOMATIC;
 972         }
 973         else {
 974             /* IHEOL */
 975             if (nenhere==0) {
 976                 prout("Energy will be expended into space.");
 977                 automode = AUTOMATIC;
 978             }
 979             else if (!ipoop)
 980                 automode = FORCEMAN;
 981             else
 982                 proutn("Manual or automatic? ");
 983         }
 984     }
 985
 986     switch (automode) {
 987     case AUTOMATIC:
 988         if (key == IHALPHA && isit("no")) {
 989             no = 1;
 990             key = scan();
 991         }
 992         if (key != IHREAL && nenhere != 0) {
 993             prout("Phasers locked on target. Energy available: %.2f",
 994                   ifast?energy-200.0:energy,1,2);
 995         }
 996         irec=0;
 997         do {
 998             chew();
 999             if (!kz) for_local_enemies(i)
1000                 irec+=fabs(game.kpower[i])/(PHASEFAC*pow(0.90,game.kdist[i]))*
1001                     (1.01+0.05*Rand()) + 1.0;
1002             kz=1;
1003             proutn("(%d) units required. ", irec);
1004             chew();
1005             proutn("Units to fire= ");
1006             key = scan();
1007             if (key!=IHREAL) return;
1008             rpow = aaitem;
1009             if (rpow > (ifast?energy-200:energy)) {
1010                 proutn("Energy available= %.2f",
1011                        ifast?energy-200:energy);
1012                 skip(1);
1013                 key = IHEOL;
1014             }
1015         } while (rpow > (ifast?energy-200:energy));
1016         if (rpow<=0) {
1017             /* chicken out */
1018             chew();
1019             return;
1020         }
1021         if ((key=scan()) == IHALPHA && isit("no")) {
1022             no = 1;
1023         }
1024         if (ifast) {
1025             energy -= 200; /* Go and do it! */
1026             if (checkshctrl(rpow)) return;
1027         }
1028         chew();
1029         energy -= rpow;
1030         extra = rpow;
1031         if (nenhere) {
1032             extra = 0.0;
1033             powrem = rpow;
1034             for_local_enemies(i) {
1035                 hits[i] = 0.0;
1036                 if (powrem <= 0) continue;
1037                 hits[i] = fabs(game.kpower[i])/(PHASEFAC*pow(0.90,game.kdist[i]));
1038                 over = (0.01 + 0.05*Rand())*hits[i];
1039                 temp = powrem;
1040                 powrem -= hits[i] + over;
1041                 if (powrem <= 0 && temp < hits[i]) hits[i] = temp;
1042                 if (powrem <= 0) over = 0.0;
1043                 extra += over;
1044             }
1045             if (powrem > 0.0) extra += powrem;
1046             hittem(hits);
1047             ididit=1;
1048         }
1049         if (extra > 0 && alldone == 0) {
1050             if (ithere) {
1051                 proutn("*** Tholian web absorbs ");
1052                 if (nenhere>0) proutn("excess ");
1053                 prout("phaser energy.");
1054             }
1055             else {
1056                 prout("%d expended on empty space.", (int)extra);
1057             }
1058         }
1059         break;
1060
1061     case FORCEMAN:
1062         chew();
1063         key = IHEOL;
1064         if (game.damage[DCOMPTR]!=0)
1065             prout("Battle comuter damaged, manual file only.");
1066         else {
1067             skip(1);
1068             prouts("---WORKING---");
1069             skip(1);
1070             prout("Short-range-sensors-damaged");
1071             prout("Insufficient-data-for-automatic-phaser-fire");
1072             prout("Manual-fire-must-be-used");
1073             skip(1);
1074         }
1075     case MANUAL:
1076         rpow = 0.0;
1077         for (k = 1; k <= nenhere;) {
1078             int ii = game.kx[k], jj = game.ky[k];
1079             int ienm = game.quad[ii][jj];
1080             if (msgflag) {
1081                 proutn("Energy available= %.2f",
1082                        energy-.006-(ifast?200:0));
1083                 skip(1);
1084                 msgflag = 0;
1085                 rpow = 0.0;
1086             }
1087             if (game.damage[DSRSENS] && !(abs(sectx-ii) < 2 && abs(secty-jj) < 2) &&
1088                 (ienm == IHC || ienm == IHS)) {
1089                 cramen(ienm);
1090                 prout(" can't be located without short range scan.");
1091                 chew();
1092                 key = IHEOL;
1093                 hits[k] = 0; /* prevent overflow -- thanks to Alexei Voitenko */
1094                 k++;
1095                 continue;
1096             }
1097             if (key == IHEOL) {
1098                 chew();
1099                 if (ipoop && k > kz)
1100                     irec=(fabs(game.kpower[k])/(PHASEFAC*pow(0.9,game.kdist[k])))*
1101                         (1.01+0.05*Rand()) + 1.0;
1102                 kz = k;
1103                 proutn("(");
1104                 if (game.damage[DCOMPTR]==0) proutn("%d", irec);
1105                 else proutn("??");
1106                 proutn(")  ");
1107                 proutn("units to fire at ");
1108                 crmena(0, ienm, 2, ii, jj);
1109                 proutn("-  ");
1110                 key = scan();
1111             }
1112             if (key == IHALPHA && isit("no")) {
1113                 no = 1;
1114                 key = scan();
1115                 continue;
1116             }
1117             if (key == IHALPHA) {
1118                 huh();
1119                 return;
1120             }
1121             if (key == IHEOL) {
1122                 if (k==1) { /* Let me say I'm baffled by this */
1123                     msgflag = 1;
1124                 }
1125                 continue;
1126             }
1127             if (aaitem < 0) {
1128                 /* abort out */
1129                 chew();
1130                 return;
1131             }
1132             hits[k] = aaitem;
1133             rpow += aaitem;
1134             /* If total requested is too much, inform and start over */
1135
1136             if (rpow > (ifast?energy-200:energy)) {
1137                 prout("Available energy exceeded -- try again.");
1138                 chew();
1139                 return;
1140             }
1141             key = scan(); /* scan for next value */
1142             k++;
1143         }
1144         if (rpow == 0.0) {
1145             /* zero energy -- abort */
1146             chew();
1147             return;
1148         }
1149         if (key == IHALPHA && isit("no")) {
1150             no = 1;
1151         }
1152         energy -= rpow;
1153         chew();
1154         if (ifast) {
1155             energy -= 200.0;
1156             if (checkshctrl(rpow)) return;
1157         }
1158         hittem(hits);
1159         ididit=1;
1160     case NOTSET:;       /* avoid gcc warning */
1161     }
1162     /* Say shield raised or malfunction, if necessary */
1163     if (alldone)
1164         return;
1165     if (ifast) {
1166         skip(1);
1167         if (no == 0) {
1168             if (Rand() >= 0.99) {
1169                 prout("Sulu-  \"Sir, the high-speed shield control has malfunctioned . . .");
1170                 prouts("         CLICK   CLICK   POP  . . .");
1171                 prout(" No  response, sir!");
1172                 shldup = 0;
1173             }
1174             else
1175                 prout("Shields raised.");
1176         }
1177         else
1178             shldup = 0;
1179     }
1180     overheat(rpow);
1181 }
1182
1183 void hittem(double *hits)
1184 {
1185     double kp, kpow, wham, hit, dustfac, kpini;
1186     int nenhr2=nenhere, k=1, kk=1, ii, jj, ienm;
1187
1188     skip(1);
1189
1190     for (; k <= nenhr2; k++, kk++) {
1191         if ((wham = hits[k])==0) continue;
1192         dustfac = 0.9 + 0.01*Rand();
1193         hit = wham*pow(dustfac,game.kdist[kk]);
1194         kpini = game.kpower[kk];
1195         kp = fabs(kpini);
1196         if (PHASEFAC*hit < kp) kp = PHASEFAC*hit;
1197         game.kpower[kk] -= (game.kpower[kk] < 0 ? -kp: kp);
1198         kpow = game.kpower[kk];
1199         ii = game.kx[kk];
1200         jj = game.ky[kk];
1201         if (hit > 0.005) {
1202             if (game.damage[DSRSENS]==0)
1203                 boom(ii, jj);
1204             proutn("%d unit hit on ", (int)hit);
1205         }
1206         else
1207             proutn("Very small hit on ");
1208         ienm = game.quad[ii][jj];
1209         if (ienm==IHQUEST) iqengry=1;
1210         crmena(0,ienm,2,ii,jj);
1211         skip(1);
1212         if (kpow == 0) {
1213             deadkl(ii, jj, ienm, ii, jj);
1214             if (game.state.remkl==0) finish(FWON);
1215             if (alldone) return;
1216             kk--; /* don't do the increment */
1217         }
1218         else /* decide whether or not to emasculate klingon */
1219             if (kpow > 0 && Rand() >= 0.9 &&
1220                 kpow <= ((0.4 + 0.4*Rand())*kpini)) {
1221                 prout("***Mr. Spock-  \"Captain, the vessel at ",
1222                       cramlc(sector,ii,jj));
1223                 prout("   has just lost its firepower.\"");
1224                 game.kpower[kk] = -kpow;
1225             }
1226     }
1227     return;
1228 }
1229