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1.1 ! root 1: /* ! 2: * Copyright (c) 1980 Regents of the University of California. ! 3: * All rights reserved. ! 4: * ! 5: * Redistribution and use in source and binary forms are permitted ! 6: * provided that the above copyright notice and this paragraph are ! 7: * duplicated in all such forms and that any documentation, ! 8: * advertising materials, and other materials related to such ! 9: * distribution and use acknowledge that the software was developed ! 10: * by the University of California, Berkeley. The name of the ! 11: * University may not be used to endorse or promote products derived ! 12: * from this software without specific prior written permission. ! 13: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ! 14: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ! 15: * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 16: */ ! 17: ! 18: #ifndef lint ! 19: static char sccsid[] = "@(#)score.c 5.4 (Berkeley) 6/18/88"; ! 20: #endif /* not lint */ ! 21: ! 22: #include <stdio.h> ! 23: #include "deck.h" ! 24: #include "cribbage.h" ! 25: ! 26: ! 27: /* ! 28: * the following arrays give the sum of the scores of the (50 2)*48 = 58800 ! 29: * hands obtainable for the crib given the two cards whose ranks index the ! 30: * array. the two arrays are for the case where the suits are equal and ! 31: * not equal respectively ! 32: */ ! 33: ! 34: long crbescr[ 169 ] = { ! 35: -10000, 271827, 278883, 332319, 347769, 261129, 250653, 253203, 248259, ! 36: 243435, 256275, 237435, 231051, -10000, -10000, 412815, 295707, 349497, ! 37: 267519, 262521, 259695, 254019, 250047, 262887, 244047, 237663, -10000, ! 38: -10000, -10000, 333987, 388629, 262017, 266787, 262971, 252729, 254475, ! 39: 267315, 248475, 242091, -10000, -10000, -10000, -10000, 422097, 302787, ! 40: 256437, 263751, 257883, 254271, 267111, 248271, 241887, -10000, -10000, ! 41: -10000, -10000, -10000, 427677, 387837, 349173, 347985, 423861, 436701, ! 42: 417861, 411477, -10000, -10000, -10000, -10000, -10000, -10000, 336387, ! 43: 298851, 338667, 236487, 249327, 230487, 224103, -10000, -10000, -10000, ! 44: -10000, -10000, -10000, -10000, 408483, 266691, 229803, 246195, 227355, ! 45: 220971, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 46: 300675, 263787, 241695, 226407, 220023, -10000, -10000, -10000, -10000, ! 47: -10000, -10000, -10000, -10000, -10000, 295635, 273543, 219771, 216939, ! 48: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 49: -10000, 306519, 252747, 211431, -10000, -10000, -10000, -10000, -10000, ! 50: -10000, -10000, -10000, -10000, -10000, -10000, 304287, 262971, -10000, ! 51: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 52: -10000, -10000, 244131, -10000, -10000, -10000, -10000, -10000, -10000, ! 53: -10000, -10000, -10000, -10000, -10000, -10000, -10000 }; ! 54: ! 55: long crbnescr[ 169 ] = { ! 56: 325272, 260772, 267828, 321264, 336714, 250074, 239598, 242148, 237204, ! 57: 232380, 246348, 226380, 219996, -10000, 342528, 401760, 284652, 338442, ! 58: 256464, 251466, 248640, 242964, 238992, 252960, 232992, 226608, -10000, ! 59: -10000, 362280, 322932, 377574, 250962, 255732, 251916, 241674, 243420, ! 60: 257388, 237420, 231036, -10000, -10000, -10000, 360768, 411042, 291732, ! 61: 245382, 252696, 246828, 243216, 257184, 237216, 230832, -10000, -10000, ! 62: -10000, -10000, 528768, 416622, 376782, 338118, 336930, 412806, 426774, ! 63: 406806, 400422, -10000, -10000, -10000, -10000, -10000, 369864, 325332, ! 64: 287796, 327612, 225432, 239400, 219432, 213048, -10000, -10000, -10000, ! 65: -10000, -10000, -10000, 359160, 397428, 255636, 218748, 236268, 216300, ! 66: 209916, -10000, -10000, -10000, -10000, -10000, -10000, -10000, 331320, ! 67: 289620, 252732, 231768, 215352, 208968, -10000, -10000, -10000, -10000, ! 68: -10000, -10000, -10000, -10000, 325152, 284580, 263616, 208716, 205884, ! 69: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 70: 321240, 296592, 241692, 200376, -10000, -10000, -10000, -10000, -10000, ! 71: -10000, -10000, -10000, -10000, -10000, 348600, 294360, 253044, -10000, ! 72: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 73: -10000, 308664, 233076, -10000, -10000, -10000, -10000, -10000, -10000, ! 74: -10000, -10000, -10000, -10000, -10000, -10000, 295896 }; ! 75: ! 76: ! 77: static int ichoose2[ 5 ] = { 0, 0, 2, 6, 12 }; ! 78: static int pairpoints, runpoints; /* globals from pairuns */ ! 79: ! 80: ! 81: /* ! 82: * scorehand: ! 83: * Score the given hand of n cards and the starter card. ! 84: * n must be <= 4 ! 85: */ ! 86: scorehand(hand, starter, n, crb, do_explain) ! 87: register CARD hand[]; ! 88: CARD starter; ! 89: int n; ! 90: BOOLEAN crb; /* true if scoring crib */ ! 91: BOOLEAN do_explain; /* true if must explain this hand */ ! 92: { ! 93: CARD h[(CINHAND + 1)]; ! 94: register int i, k; ! 95: register int score; ! 96: register BOOLEAN flag; ! 97: char buf[32]; ! 98: ! 99: expl[0] = NULL; /* initialize explanation */ ! 100: score = 0; ! 101: flag = TRUE; ! 102: k = hand[0].suit; ! 103: for (i = 0; i < n; i++) { /* check for flush */ ! 104: flag = (flag && (hand[i].suit == k)); ! 105: if (hand[i].rank == JACK) /* check for his nibs */ ! 106: if (hand[i].suit == starter.suit) { ! 107: score++; ! 108: if (do_explain) ! 109: strcat(expl, "His Nobs"); ! 110: } ! 111: h[i] = hand[i]; ! 112: } ! 113: ! 114: if (flag && n >= CINHAND) { ! 115: if (do_explain && expl[0] != NULL) ! 116: strcat(expl, ", "); ! 117: if (starter.suit == k) { ! 118: score += 5; ! 119: if (do_explain) ! 120: strcat(expl, "Five-flush"); ! 121: } ! 122: else if (!crb) { ! 123: score += 4; ! 124: if (do_explain && expl[0] != NULL) ! 125: strcat(expl, ", Four-flush"); ! 126: else ! 127: strcpy(expl, "Four-flush"); ! 128: } ! 129: } ! 130: ! 131: if (do_explain && expl[0] != NULL) ! 132: strcat(expl, ", "); ! 133: h[n] = starter; ! 134: sorthand(h, n + 1); /* sort by rank */ ! 135: i = 2 * fifteens(h, n + 1); ! 136: score += i; ! 137: if (do_explain) ! 138: if (i > 0) { ! 139: (void)sprintf(buf, "%d points in fifteens", i); ! 140: strcat(expl, buf); ! 141: } ! 142: else ! 143: strcat(expl, "No fifteens"); ! 144: i = pairuns(h, n + 1); ! 145: score += i; ! 146: if (do_explain) ! 147: if (i > 0) { ! 148: (void)sprintf(buf, ", %d points in pairs, %d in runs", ! 149: pairpoints, runpoints); ! 150: strcat(expl, buf); ! 151: } ! 152: else ! 153: strcat(expl, ", No pairs/runs"); ! 154: return score; ! 155: } ! 156: ! 157: /* ! 158: * fifteens: ! 159: * Return number of fifteens in hand of n cards ! 160: */ ! 161: fifteens(hand, n) ! 162: register CARD hand[]; ! 163: int n; ! 164: { ! 165: register int *sp, *np; ! 166: register int i; ! 167: register CARD *endp; ! 168: static int sums[15], nsums[15]; ! 169: ! 170: np = nsums; ! 171: sp = sums; ! 172: i = 16; ! 173: while (--i) { ! 174: *np++ = 0; ! 175: *sp++ = 0; ! 176: } ! 177: for (endp = &hand[n]; hand < endp; hand++) { ! 178: i = hand->rank + 1; ! 179: if (i > 10) ! 180: i = 10; ! 181: np = &nsums[i]; ! 182: np[-1]++; /* one way to make this */ ! 183: sp = sums; ! 184: while (i < 15) { ! 185: *np++ += *sp++; ! 186: i++; ! 187: } ! 188: sp = sums; ! 189: np = nsums; ! 190: i = 16; ! 191: while (--i) ! 192: *sp++ = *np++; ! 193: } ! 194: return sums[14]; ! 195: } ! 196: ! 197: ! 198: ! 199: /* ! 200: * pairuns returns the number of points in the n card sorted hand ! 201: * due to pairs and runs ! 202: * this routine only works if n is strictly less than 6 ! 203: * sets the globals pairpoints and runpoints appropriately ! 204: */ ! 205: ! 206: pairuns( h, n ) ! 207: ! 208: CARD h[]; ! 209: int n; ! 210: { ! 211: register int i; ! 212: int runlength, runmult, lastmult, curmult; ! 213: int mult1, mult2, pair1, pair2; ! 214: BOOLEAN run; ! 215: ! 216: run = TRUE; ! 217: runlength = 1; ! 218: mult1 = 1; ! 219: pair1 = -1; ! 220: mult2 = 1; ! 221: pair2 = -1; ! 222: curmult = runmult = 1; ! 223: for( i = 1; i < n; i++ ) { ! 224: lastmult = curmult; ! 225: if( h[i].rank == h[i - 1].rank ) { ! 226: if( pair1 < 0 ) { ! 227: pair1 = h[i].rank; ! 228: mult1 = curmult = 2; ! 229: } ! 230: else { ! 231: if( h[i].rank == pair1 ) { ! 232: curmult = ++mult1; ! 233: } ! 234: else { ! 235: if( pair2 < 0 ) { ! 236: pair2 = h[i].rank; ! 237: mult2 = curmult = 2; ! 238: } ! 239: else { ! 240: curmult = ++mult2; ! 241: } ! 242: } ! 243: } ! 244: if( i == (n - 1) && run ) { ! 245: runmult *= curmult; ! 246: } ! 247: } ! 248: else { ! 249: curmult = 1; ! 250: if( h[i].rank == h[i - 1].rank + 1 ) { ! 251: if( run ) { ! 252: ++runlength; ! 253: } ! 254: else { ! 255: if( runlength < 3 ) { /* only if old short */ ! 256: run = TRUE; ! 257: runlength = 2; ! 258: runmult = 1; ! 259: } ! 260: } ! 261: runmult *= lastmult; ! 262: } ! 263: else { ! 264: if( run ) runmult *= lastmult; /* if just ended */ ! 265: run = FALSE; ! 266: } ! 267: } ! 268: } ! 269: pairpoints = ichoose2[ mult1 ] + ichoose2[ mult2 ]; ! 270: runpoints = ( runlength >= 3 ? runlength*runmult : 0 ); ! 271: return( pairpoints + runpoints ); ! 272: } ! 273: ! 274: ! 275: ! 276: /* ! 277: * pegscore tells how many points crd would get if played after ! 278: * the n cards in tbl during pegging ! 279: */ ! 280: ! 281: pegscore( crd, tbl, n, sum ) ! 282: ! 283: CARD crd, tbl[]; ! 284: int n; ! 285: int sum; ! 286: { ! 287: BOOLEAN got[ RANKS ]; ! 288: register int i, j, scr; ! 289: int k, lo, hi; ! 290: ! 291: sum += VAL( crd.rank ); ! 292: if( sum > 31 ) return( -1 ); ! 293: if( sum == 31 || sum == 15 ) scr = 2; ! 294: else scr = 0; ! 295: if( !n ) return( scr ); ! 296: j = 1; ! 297: while( ( crd.rank == tbl[n - j].rank ) && ( n - j >= 0 ) ) ++j; ! 298: if( j > 1 ) return( scr + ichoose2[j] ); ! 299: if( n < 2 ) return( scr ); ! 300: lo = hi = crd.rank; ! 301: for( i = 0; i < RANKS; i++ ) got[i] = FALSE; ! 302: got[ crd.rank ] = TRUE; ! 303: k = -1; ! 304: for( i = n - 1; i >= 0; --i ) { ! 305: if( got[ tbl[i].rank ] ) break; ! 306: got[ tbl[i].rank ] = TRUE; ! 307: if( tbl[i].rank < lo ) lo = tbl[i].rank; ! 308: if( tbl[i].rank > hi ) hi = tbl[i].rank; ! 309: for( j = lo; j <= hi; j++ ) if( !got[j] ) break; ! 310: if( j > hi ) k = hi - lo + 1; ! 311: } ! 312: if( k >= 3 ) return( scr + k ); ! 313: else return( scr ); ! 314: } ! 315: ! 316: ! 317: ! 318: /* ! 319: * adjust takes a two card hand that will be put in the crib ! 320: * and returns an adjusted normalized score for the number of ! 321: * points such a crib will get. ! 322: */ ! 323: ! 324: adjust( cb, tnv ) ! 325: ! 326: CARD cb[], tnv; ! 327: { ! 328: int i, c0, c1; ! 329: long scr; ! 330: ! 331: c0 = cb[0].rank; ! 332: c1 = cb[1].rank; ! 333: if( c0 > c1 ) { ! 334: i = c0; ! 335: c0 = c1; ! 336: c1 = i; ! 337: } ! 338: if( cb[0].suit != cb[1].suit ) scr = crbnescr[ RANKS*c0 + c1 ]; ! 339: else scr = crbescr[ RANKS*c0 + c1 ]; ! 340: if( scr <= 0 ) { ! 341: printf( "\nADJUST: internal error %d %d\n", c0, c1 ); ! 342: exit( 93 ); ! 343: } ! 344: return( (scr + 29400)/58800 ); ! 345: } ! 346: ! 347: ! 348:
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