initial import of 386bsd-0.1 sources

1 files changed, 364 insertions, 0 deletions

diff --git a/cribbage/score.c b/cribbage/score.c
new file mode 100644
index 00000000..be3ca3fd
--- /dev/null
+++ b/cribbage/score.c
@@ -0,0 +1,364 @@
+/*
+ * Copyright (c) 1980 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static char sccsid[] = "@(#)score.c	5.5 (Berkeley) 6/1/90";
+#endif /* not lint */
+
+#include	<stdio.h>
+#include	"deck.h"
+#include	"cribbage.h"
+
+
+/*
+ * the following arrays give the sum of the scores of the (50 2)*48 = 58800
+ * hands obtainable for the crib given the two cards whose ranks index the
+ * array.  the two arrays are for the case where the suits are equal and
+ * not equal respectively
+ */
+
+long		crbescr[ 169 ]		= {
+    -10000, 271827, 278883, 332319, 347769, 261129, 250653, 253203, 248259,
+    243435, 256275, 237435, 231051, -10000, -10000, 412815, 295707, 349497,
+    267519, 262521, 259695, 254019, 250047, 262887, 244047, 237663, -10000,
+    -10000, -10000, 333987, 388629, 262017, 266787, 262971, 252729, 254475,
+    267315, 248475, 242091, -10000, -10000, -10000, -10000, 422097, 302787,
+    256437, 263751, 257883, 254271, 267111, 248271, 241887, -10000, -10000,
+    -10000, -10000, -10000, 427677, 387837, 349173, 347985, 423861, 436701,
+    417861, 411477, -10000, -10000, -10000, -10000, -10000, -10000, 336387,
+    298851, 338667, 236487, 249327, 230487, 224103, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, 408483, 266691, 229803, 246195, 227355,
+    220971, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000,
+    300675, 263787, 241695, 226407, 220023, -10000, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, -10000, 295635, 273543, 219771, 216939,
+    -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000,
+    -10000, 306519, 252747, 211431, -10000, -10000, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, -10000, -10000, 304287, 262971, -10000,
+    -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000,
+    -10000, -10000, 244131, -10000, -10000, -10000, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, -10000, -10000, -10000  };
+
+long		crbnescr[ 169 ]		= {
+    325272, 260772, 267828, 321264, 336714, 250074, 239598, 242148, 237204,
+    232380, 246348, 226380, 219996, -10000, 342528, 401760, 284652, 338442,
+    256464, 251466, 248640, 242964, 238992, 252960, 232992, 226608, -10000,
+    -10000, 362280, 322932, 377574, 250962, 255732, 251916, 241674, 243420,
+    257388, 237420, 231036, -10000, -10000, -10000, 360768, 411042, 291732,
+    245382, 252696, 246828, 243216, 257184, 237216, 230832, -10000, -10000,
+    -10000, -10000, 528768, 416622, 376782, 338118, 336930, 412806, 426774,
+    406806, 400422, -10000, -10000, -10000, -10000, -10000, 369864, 325332,
+    287796, 327612, 225432, 239400, 219432, 213048, -10000, -10000, -10000,
+    -10000, -10000, -10000, 359160, 397428, 255636, 218748, 236268, 216300,
+    209916, -10000, -10000, -10000, -10000, -10000, -10000, -10000, 331320,
+    289620, 252732, 231768, 215352, 208968, -10000, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, 325152, 284580, 263616, 208716, 205884,
+    -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000,
+    321240, 296592, 241692, 200376, -10000, -10000, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, -10000, 348600, 294360, 253044, -10000,
+    -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000,
+    -10000, 308664, 233076, -10000, -10000, -10000, -10000, -10000, -10000,
+    -10000, -10000, -10000, -10000, -10000, -10000, 295896  };
+
+
+static  int		ichoose2[ 5 ]		= { 0, 0, 2, 6, 12 };
+static  int		pairpoints, runpoints;	/* globals from pairuns */
+
+
+/*
+ * scorehand:
+ *	Score the given hand of n cards and the starter card.
+ *	n must be <= 4
+ */
+scorehand(hand, starter, n, crb, do_explain)
+register CARD		hand[];
+CARD			starter;
+int			n;
+BOOLEAN			crb;		/* true if scoring crib */
+BOOLEAN			do_explain;	/* true if must explain this hand */
+{
+	CARD			h[(CINHAND + 1)];
+	register int		i, k;
+	register int		score;
+	register BOOLEAN	flag;
+	char			buf[32];
+
+	expl[0] = NULL;		/* initialize explanation */
+	score = 0;
+	flag = TRUE;
+	k = hand[0].suit;
+	for (i = 0; i < n; i++) {			/* check for flush */
+	    flag = (flag && (hand[i].suit == k));
+	    if (hand[i].rank == JACK)			/* check for his nibs */
+		if (hand[i].suit == starter.suit) {
+		    score++;
+		    if (do_explain)
+			strcat(expl, "His Nobs");
+		}
+	    h[i] = hand[i];
+	}
+
+	if (flag && n >= CINHAND) {
+	    if (do_explain && expl[0] != NULL)
+		strcat(expl, ", ");
+	    if (starter.suit == k) {
+		score += 5;
+		if (do_explain)
+		    strcat(expl, "Five-flush");
+	    }
+	    else if (!crb) {
+		score += 4;
+		if (do_explain && expl[0] != NULL)
+		    strcat(expl, ", Four-flush");
+		else
+		    strcpy(expl, "Four-flush");
+	    }
+	}
+
+	if (do_explain && expl[0] != NULL)
+	    strcat(expl, ", ");
+	h[n] = starter;
+	sorthand(h, n + 1);			/* sort by rank */
+	i = 2 * fifteens(h, n + 1);
+	score += i;
+	if (do_explain)
+	    if (i > 0) {
+		(void)sprintf(buf, "%d points in fifteens", i);
+		strcat(expl, buf);
+	    }
+	    else
+		strcat(expl, "No fifteens");
+	i = pairuns(h, n + 1);
+	score += i;
+	if (do_explain)
+	    if (i > 0) {
+		(void)sprintf(buf, ", %d points in pairs, %d in runs",
+			pairpoints, runpoints);
+		strcat(expl, buf);
+	    }
+	    else
+		strcat(expl, ", No pairs/runs");
+	return score;
+}
+
+/*
+ * fifteens:
+ *	Return number of fifteens in hand of n cards
+ */
+fifteens(hand, n)
+register CARD		hand[];
+int			n;
+{
+	register int		*sp, *np;
+	register int		i;
+	register CARD		*endp;
+	static int		sums[15], nsums[15];
+
+	np = nsums;
+	sp = sums;
+	i = 16;
+	while (--i) {
+	    *np++ = 0;
+	    *sp++ = 0;
+	}
+	for (endp = &hand[n]; hand < endp; hand++) {
+	    i = hand->rank + 1;
+	    if (i > 10)
+		i = 10;
+	    np = &nsums[i];
+	    np[-1]++;			/* one way to make this */
+	    sp = sums;
+	    while (i < 15) {
+		*np++ += *sp++;
+		i++;
+	    }
+	    sp = sums;
+	    np = nsums;
+	    i = 16;
+	    while (--i)
+		*sp++ = *np++;
+	}
+	return sums[14];
+}
+
+
+
+/*
+ * pairuns returns the number of points in the n card sorted hand
+ * due to pairs and runs
+ * this routine only works if n is strictly less than 6
+ * sets the globals pairpoints and runpoints appropriately
+ */
+
+pairuns( h, n )
+
+    CARD		h[];
+    int			n;
+{
+	register  int		i;
+	int			runlength, runmult, lastmult, curmult;
+	int			mult1, mult2, pair1, pair2;
+	BOOLEAN			run;
+
+	run = TRUE;
+	runlength = 1;
+	mult1 = 1;
+	pair1 = -1;
+	mult2 = 1;
+	pair2 = -1;
+	curmult = runmult = 1;
+	for( i = 1; i < n; i++ )  {
+	    lastmult = curmult;
+	    if(  h[i].rank == h[i - 1].rank  )  {
+		if(  pair1 < 0  )  {
+		    pair1 = h[i].rank;
+		    mult1 = curmult = 2;
+		}
+		else  {
+		    if(  h[i].rank == pair1  )  {
+			curmult = ++mult1;
+		    }
+		    else  {
+			if(  pair2 < 0  )  {
+			    pair2 = h[i].rank;
+			    mult2 = curmult = 2;
+			}
+			else  {
+			    curmult = ++mult2;
+			}
+		    }
+		}
+		if(  i == (n - 1)  &&  run  )  {
+		    runmult *= curmult;
+		}
+	    }
+	    else  {
+		curmult = 1;
+		if(  h[i].rank == h[i - 1].rank + 1  )  {
+		    if( run )  {
+			++runlength;
+		    }
+		    else  {
+			if(  runlength < 3  )  {	/* only if old short */
+			    run = TRUE;
+			    runlength = 2;
+			    runmult = 1;
+			}
+		    }
+		    runmult *= lastmult;
+		}
+		else  {
+		    if( run )  runmult *= lastmult;	/* if just ended */
+		    run = FALSE;
+		}
+	    }
+	}
+	pairpoints = ichoose2[ mult1 ] + ichoose2[ mult2 ];
+	runpoints = ( runlength >= 3 ? runlength*runmult : 0 );
+	return(  pairpoints + runpoints  );
+}
+
+
+
+/*
+ * pegscore tells how many points crd would get if played after
+ * the n cards in tbl during pegging
+ */
+
+pegscore( crd, tbl, n, sum )
+
+    CARD		crd,  tbl[];
+    int			n;
+    int			sum;
+{
+	BOOLEAN			got[ RANKS ];
+	register  int		i, j, scr;
+	int			k, lo, hi;
+
+	sum += VAL( crd.rank );
+	if(  sum > 31  )  return( -1 );
+	if(  sum == 31  ||  sum == 15  )  scr = 2;
+	else				  scr = 0;
+	if(  !n  )  return( scr );
+	j = 1;
+	while(  ( crd.rank == tbl[n - j].rank )  &&  ( n - j >= 0 )  )  ++j;
+	if( j > 1 )  return( scr + ichoose2[j] );
+	if( n < 2 )  return( scr );
+	lo = hi = crd.rank;
+	for( i = 0; i < RANKS; i++ )  got[i] = FALSE;
+	got[ crd.rank ] = TRUE;
+	k = -1;
+	for( i = n - 1; i >= 0; --i )  {
+	    if(  got[ tbl[i].rank ]  )  break;
+	    got[ tbl[i].rank ] = TRUE;
+	    if(  tbl[i].rank < lo  )  lo = tbl[i].rank;
+	    if(  tbl[i].rank > hi  )  hi = tbl[i].rank;
+	    for( j = lo; j <= hi; j++ )  if( !got[j] )  break;
+	    if(  j > hi )  k = hi - lo + 1;
+	}
+	if(  k >= 3  )  return( scr + k );
+	else		return( scr );
+}
+
+
+
+/*
+ * adjust takes a two card hand that will be put in the crib
+ * and returns an adjusted normalized score for the number of
+ * points such a crib will get.
+ */
+
+adjust( cb, tnv )
+
+    CARD		cb[], tnv;
+{
+	int			i,  c0,  c1;
+	long			scr;
+
+	c0 = cb[0].rank;
+	c1 = cb[1].rank;
+	if(  c0 > c1  )  {
+	    i = c0;
+	    c0 = c1;
+	    c1 = i;
+	}
+	if(  cb[0].suit != cb[1].suit  )  scr = crbnescr[ RANKS*c0 + c1 ];
+	else				  scr = crbescr[ RANKS*c0 + c1 ];
+	if(  scr <= 0  )  {
+	    printf( "\nADJUST: internal error %d %d\n",  c0, c1 );
+	    exit( 93 );
+	}
+	return(  (scr + 29400)/58800  );
+}
+
+
+