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dr_1.c revision 1.12
      1 /*	$NetBSD: dr_1.c,v 1.12 2001/01/01 21:57:37 jwise Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)dr_1.c	8.1 (Berkeley) 5/31/93";
     40 #else
     41 __RCSID("$NetBSD: dr_1.c,v 1.12 2001/01/01 21:57:37 jwise Exp $");
     42 #endif
     43 #endif /* not lint */
     44 
     45 #include "driver.h"
     46 #include <stdlib.h>
     47 
     48 void
     49 unfoul(void)
     50 {
     51 	struct ship *sp;
     52 	struct ship *to;
     53 	int nat;
     54 	int i;
     55 
     56 	foreachship(sp) {
     57 		if (sp->file->captain[0])
     58 			continue;
     59 		nat = capship(sp)->nationality;
     60 		foreachship(to) {
     61 			if (nat != capship(to)->nationality &&
     62 			    !is_toughmelee(sp, to, 0, 0))
     63 				continue;
     64 			for (i = fouled2(sp, to); --i >= 0;)
     65 				if (dieroll() <= 2)
     66 					cleanfoul(sp, to, 0);
     67 		}
     68 	}
     69 }
     70 
     71 void
     72 boardcomp(void)
     73 {
     74 	int crew[3];
     75 	struct ship *sp, *sq;
     76 
     77 	foreachship(sp) {
     78 		if (*sp->file->captain)
     79 			continue;
     80 		if (sp->file->dir == 0)
     81 			continue;
     82 		if (sp->file->struck || sp->file->captured != 0)
     83 			continue;
     84 		if (!snagged(sp))
     85 			continue;
     86 		crew[0] = sp->specs->crew1 != 0;
     87 		crew[1] = sp->specs->crew2 != 0;
     88 		crew[2] = sp->specs->crew3 != 0;
     89 		foreachship(sq) {
     90 			if (!Xsnagged2(sp, sq))
     91 				continue;
     92 			if (meleeing(sp, sq))
     93 				continue;
     94 			if (!sq->file->dir
     95 				|| sp->nationality == capship(sq)->nationality)
     96 				continue;
     97 			switch (sp->specs->class - sq->specs->class) {
     98 			case -3: case -4: case -5:
     99 				if (crew[0]) {
    100 					/* OBP */
    101 					sendbp(sp, sq, crew[0]*100, 0);
    102 					crew[0] = 0;
    103 				} else if (crew[1]){
    104 					/* OBP */
    105 					sendbp(sp, sq, crew[1]*10, 0);
    106 					crew[1] = 0;
    107 				}
    108 				break;
    109 			case -2:
    110 				if (crew[0] || crew[1]) {
    111 					/* OBP */
    112 					sendbp(sp, sq, crew[0]*100+crew[1]*10,
    113 						0);
    114 					crew[0] = crew[1] = 0;
    115 				}
    116 				break;
    117 			case -1: case 0: case 1:
    118 				if (crew[0]) {
    119 					/* OBP */
    120 					sendbp(sp, sq, crew[0]*100+crew[1]*10,
    121 						0);
    122 					crew[0] = crew[1] = 0;
    123 				}
    124 				break;
    125 			case 2: case 3: case 4: case 5:
    126 				/* OBP */
    127 				sendbp(sp, sq, crew[0]*100+crew[1]*10+crew[2],
    128 					0);
    129 				crew[0] = crew[1] = crew[2] = 0;
    130 				break;
    131 			}
    132 		}
    133 	}
    134 }
    135 
    136 int
    137 fightitout(struct ship *from, struct ship *to, int key)
    138 {
    139 	struct ship *fromcap, *tocap;
    140 	int crewfrom[3], crewto[3], menfrom, mento;
    141 	int pcto, pcfrom, fromstrength, strengthto, frominjured, toinjured;
    142 	int topoints;
    143 	int index, totalfrom = 0, totalto = 0;
    144 	int count;
    145 	char message[60];
    146 
    147 	menfrom = mensent(from, to, crewfrom, &fromcap, &pcfrom, key);
    148 	mento = mensent(to, from, crewto, &tocap, &pcto, 0);
    149 	if (fromcap == 0)
    150 		fromcap = from;
    151 	if (tocap == 0)
    152 		tocap = to;
    153 	if (key) {
    154 		if (!menfrom) {		 /* if crew surprised */
    155 			if (fromcap == from)
    156 				menfrom = from->specs->crew1
    157 					+ from->specs->crew2
    158 					+ from->specs->crew3;
    159 			else
    160 				menfrom = from->file->pcrew;
    161 		} else {
    162 			menfrom *= 2;	/* DBP's fight at an advantage */
    163 		}
    164 	}
    165 	fromstrength = menfrom * fromcap->specs->qual;
    166 	strengthto = mento * tocap->specs->qual;
    167 	for (count = 0;
    168 	     ((fromstrength < strengthto * 3 && strengthto < fromstrength * 3)
    169 	      || fromstrength == -1) && count < 4;
    170 	     count++) {
    171 		index = fromstrength/10;
    172 		if (index > 8)
    173 			index = 8;
    174 		toinjured = MT[index][2 - dieroll() / 3];
    175 		totalto += toinjured;
    176 		index = strengthto/10;
    177 		if (index > 8)
    178 			index = 8;
    179 		frominjured = MT[index][2 - dieroll() / 3];
    180 		totalfrom += frominjured;
    181 		menfrom -= frominjured;
    182 		mento -= toinjured;
    183 		fromstrength = menfrom * fromcap->specs->qual;
    184 		strengthto = mento * tocap->specs->qual;
    185 	}
    186 	if (fromstrength >= strengthto * 3 || count == 4) {
    187 		unboard(to, from, 0);
    188 		subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
    189 		subtract(to, totalto, crewto, tocap, pcto);
    190 		makemsg(from, "boarders from %s repelled", to->shipname);
    191 		sprintf(message, "killed in melee: %d.  %s: %d",
    192 			totalto, from->shipname, totalfrom);
    193 		Writestr(W_SIGNAL, to, message);
    194 		if (key)
    195 			return 1;
    196 	} else if (strengthto >= fromstrength * 3) {
    197 		unboard(from, to, 0);
    198 		subtract(from, totalfrom, crewfrom, fromcap, pcfrom);
    199 		subtract(to, totalto, crewto, tocap, pcto);
    200 		if (key) {
    201 			if (fromcap != from)
    202 				Write(W_POINTS, fromcap,
    203 					fromcap->file->points -
    204 						from->file->struck
    205 						? from->specs->pts
    206 						: 2 * from->specs->pts,
    207 					0, 0, 0);
    208 
    209 /* ptr1 points to the shipspec for the ship that was just unboarded.
    210    I guess that what is going on here is that the pointer is multiplied
    211    or something. */
    212 
    213 			Write(W_CAPTURED, from, to->file->index, 0, 0, 0);
    214 			topoints = 2 * from->specs->pts + to->file->points;
    215 			if (from->file->struck)
    216 				topoints -= from->specs->pts;
    217 			Write(W_POINTS, to, topoints, 0, 0, 0);
    218 			mento = crewto[0] ? crewto[0] : crewto[1];
    219 			if (mento) {
    220 				subtract(to, mento, crewto, tocap, pcto);
    221 				subtract(from, - mento, crewfrom, to, 0);
    222 			}
    223 			sprintf(message, "captured by the %s!", to->shipname);
    224 			Writestr(W_SIGNAL, from, message);
    225 			(void) sprintf(message, "killed in melee: %d.  %s: %d",
    226 				totalto, from->shipname, totalfrom);
    227 			Writestr(W_SIGNAL, to, message);
    228 			mento = 0;
    229 			return 0;
    230 		}
    231 	}
    232 	return 0;
    233 }
    234 
    235 void
    236 resolve(void)
    237 {
    238 	int thwart;
    239 	struct ship *sp, *sq;
    240 
    241 	foreachship(sp) {
    242 		if (sp->file->dir == 0)
    243 			continue;
    244 		for (sq = sp + 1; sq < ls; sq++)
    245 			if (sq->file->dir && meleeing(sp, sq) && meleeing(sq, sp))
    246 				fightitout(sp, sq, 0);
    247 		thwart = 2;
    248 		foreachship(sq) {
    249 			if (sq->file->dir && meleeing(sq, sp))
    250 				thwart = fightitout(sp, sq, 1);
    251 			if (!thwart)
    252 				break;
    253 		}
    254 		if (!thwart) {
    255 			foreachship(sq) {
    256 				if (sq->file->dir && meleeing(sq, sp))
    257 					unboard(sq, sp, 0);
    258 				unboard(sp, sq, 0);
    259 			}
    260 			unboard(sp, sp, 1);
    261 		} else if (thwart == 2)
    262 			unboard(sp, sp, 1);
    263 	}
    264 }
    265 
    266 void
    267 compcombat(void)
    268 {
    269 	int n;
    270 	struct ship *sp;
    271 	struct ship *closest;
    272 	int crew[3], men = 0, target, temp;
    273 	int r, guns, ready, load, car;
    274 	int index, rakehim, sternrake;
    275 	int shootat, hit;
    276 
    277 	foreachship(sp) {
    278 		if (sp->file->captain[0] || sp->file->dir == 0)
    279 			continue;
    280 		crew[0] = sp->specs->crew1;
    281 		crew[1] = sp->specs->crew2;
    282 		crew[2] = sp->specs->crew3;
    283 		for (n = 0; n < 3; n++) {
    284 			if (sp->file->OBP[n].turnsent)
    285 				men += sp->file->OBP[n].mensent;
    286 		}
    287 		for (n = 0; n < 3; n++) {
    288 			if (sp->file->DBP[n].turnsent)
    289 				men += sp->file->DBP[n].mensent;
    290 		}
    291 		if (men){
    292 			crew[0] = men/100 ? 0 : crew[0] != 0;
    293 			crew[1] = (men%100)/10 ? 0 : crew[1] != 0;
    294 			crew[2] = men%10 ? 0 : crew[2] != 0;
    295 		}
    296 		for (r = 0; r < 2; r++) {
    297 			if (!crew[2])
    298 				continue;
    299 			if (sp->file->struck)
    300 				continue;
    301 			if (r) {
    302 				ready = sp->file->readyR;
    303 				guns = sp->specs->gunR;
    304 				car = sp->specs->carR;
    305 			} else {
    306 				ready = sp->file->readyL;
    307 				guns = sp->specs->gunL;
    308 				car = sp->specs->carL;
    309 			}
    310 			if (!guns && !car)
    311 				continue;
    312 			if ((ready & R_LOADED) == 0)
    313 				continue;
    314 			closest = closestenemy(sp, r ? 'r' : 'l', 0);
    315 			if (closest == 0)
    316 				continue;
    317 			if (range(closest, sp) > range(sp, closestenemy(sp, r ? 'r' : 'l', 1)))
    318 				continue;
    319 			if (closest->file->struck)
    320 				continue;
    321 			target = range(sp, closest);
    322 			if (target > 10)
    323 				continue;
    324 			if (!guns && target >= 3)
    325 				continue;
    326 			load = L_ROUND;
    327 			if (target == 1 && sp->file->loadwith == L_GRAPE)
    328 				load = L_GRAPE;
    329 			if (target <= 3 && closest->file->FS)
    330 				load = L_CHAIN;
    331 			if (target == 1 && load != L_GRAPE)
    332 				load = L_DOUBLE;
    333 			if (load > L_CHAIN && target < 6)
    334 				shootat = HULL;
    335 			else
    336 				shootat = RIGGING;
    337 			rakehim = gunsbear(sp, closest)
    338 				&& !gunsbear(closest, sp);
    339 			temp = portside(closest, sp, 1)
    340 				- closest->file->dir + 1;
    341 			if (temp < 1)
    342 				temp += 8;
    343 			if (temp > 8)
    344 				temp -= 8;
    345 			sternrake = temp > 4 && temp < 6;
    346 			index = guns;
    347 			if (target < 3)
    348 				index += car;
    349 			index = (index - 1) / 3;
    350 			index = index > 8 ? 8 : index;
    351 			if (!rakehim)
    352 				hit = HDT[index][target-1];
    353 			else
    354 				hit = HDTrake[index][target-1];
    355 			if (rakehim && sternrake)
    356 				hit++;
    357 			hit += QUAL[index][capship(sp)->specs->qual - 1];
    358 			for (n = 0; n < 3 && sp->file->captured == 0; n++)
    359 				if (!crew[n]) {
    360 					if (index <= 5)
    361 						hit--;
    362 					else
    363 						hit -= 2;
    364 				}
    365 			if (ready & R_INITIAL) {
    366 				if (!r)
    367 					sp->file->readyL &= ~R_INITIAL;
    368 				else
    369 					sp->file->readyR &= ~R_INITIAL;
    370 				if (index <= 3)
    371 					hit++;
    372 				else
    373 					hit += 2;
    374 			}
    375 			if (sp->file->captured != 0) {
    376 				if (index <= 1)
    377 					hit--;
    378 				else
    379 					hit -= 2;
    380 			}
    381 			hit += AMMO[index][load - 1];
    382 			temp = sp->specs->class;
    383 			if ((temp >= 5 || temp == 1) && windspeed == 5)
    384 				hit--;
    385 			if (windspeed == 6 && temp == 4)
    386 				hit -= 2;
    387 			if (windspeed == 6 && temp <= 3)
    388 				hit--;
    389 			if (hit >= 0) {
    390 				if (load != L_GRAPE)
    391 					hit = hit > 10 ? 10 : hit;
    392 				table(shootat, load, hit, closest, sp, dieroll());
    393 			}
    394 		}
    395 	}
    396 }
    397 
    398 int
    399 next(void)
    400 {
    401 	if (++turn % 55 == 0) {
    402 		if (alive)
    403 			alive = 0;
    404 		else
    405 			people = 0;
    406 	}
    407 	if (people <= 0 || windspeed == 7) {
    408 		struct ship *s;
    409 		struct ship *bestship = NULL;
    410 		float net, best = 0.0;
    411 		foreachship(s) {
    412 			if (*s->file->captain)
    413 				continue;
    414 			net = (float)s->file->points / s->specs->pts;
    415 			if (net > best) {
    416 				best = net;
    417 				bestship = s;
    418 			}
    419 		}
    420 		if (best > 0.0) {
    421 			char *tp = getenv("WOTD");
    422 			const char *p;
    423 			if (tp == 0)
    424 				p = "Driver";
    425 			else {
    426 				if (islower(*tp))
    427 					*tp = toupper(*tp);
    428 				p = tp;
    429 			}
    430 			strncpy(bestship->file->captain, p,
    431 				sizeof bestship->file->captain);
    432 			bestship->file->captain
    433 				[sizeof bestship->file->captain - 1] = 0;
    434 			logger(bestship);
    435 		}
    436 		return -1;
    437 	}
    438 	Write(W_TURN, SHIP(0), turn, 0, 0, 0);
    439 	if (turn % 7 == 0 && (dieroll() >= cc->windchange || !windspeed)) {
    440 		switch (dieroll()) {
    441 		case 1:
    442 			winddir = 1;
    443 			break;
    444 		case 2:
    445 			break;
    446 		case 3:
    447 			winddir++;
    448 			break;
    449 		case 4:
    450 			winddir--;
    451 			break;
    452 		case 5:
    453 			winddir += 2;
    454 			break;
    455 		case 6:
    456 			winddir -= 2;
    457 			break;
    458 		}
    459 		if (winddir > 8)
    460 			winddir -= 8;
    461 		if (winddir < 1)
    462 			winddir += 8;
    463 		if (windspeed)
    464 			switch (dieroll()) {
    465 			case 1:
    466 			case 2:
    467 				windspeed--;
    468 				break;
    469 			case 5:
    470 			case 6:
    471 				windspeed++;
    472 				break;
    473 			}
    474 		else
    475 			windspeed++;
    476 		Write(W_WIND, SHIP(0), winddir, windspeed, 0, 0);
    477 	}
    478 	return 0;
    479 }
    480