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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: (1) source distributions retain this entire copyright ! 7: * notice and comment, and (2) distributions including binaries display ! 8: * the following acknowledgement: ``This product includes software ! 9: * developed by the University of California, Berkeley and its contributors'' ! 10: * in the documentation or other materials provided with the distribution ! 11: * and in all advertising materials mentioning features or use of this ! 12: * software. Neither the name of the University nor the names of its ! 13: * contributors may be used to endorse or promote products derived ! 14: * from this software without specific prior written permission. ! 15: * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR ! 16: * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED ! 17: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ! 18: */ ! 19: ! 20: #ifndef lint ! 21: static char sccsid[] = "@(#)score.c 5.5 (Berkeley) 6/1/90"; ! 22: #endif /* not lint */ ! 23: ! 24: #include <stdio.h> ! 25: #include "deck.h" ! 26: #include "cribbage.h" ! 27: ! 28: ! 29: /* ! 30: * the following arrays give the sum of the scores of the (50 2)*48 = 58800 ! 31: * hands obtainable for the crib given the two cards whose ranks index the ! 32: * array. the two arrays are for the case where the suits are equal and ! 33: * not equal respectively ! 34: */ ! 35: ! 36: long crbescr[ 169 ] = { ! 37: -10000, 271827, 278883, 332319, 347769, 261129, 250653, 253203, 248259, ! 38: 243435, 256275, 237435, 231051, -10000, -10000, 412815, 295707, 349497, ! 39: 267519, 262521, 259695, 254019, 250047, 262887, 244047, 237663, -10000, ! 40: -10000, -10000, 333987, 388629, 262017, 266787, 262971, 252729, 254475, ! 41: 267315, 248475, 242091, -10000, -10000, -10000, -10000, 422097, 302787, ! 42: 256437, 263751, 257883, 254271, 267111, 248271, 241887, -10000, -10000, ! 43: -10000, -10000, -10000, 427677, 387837, 349173, 347985, 423861, 436701, ! 44: 417861, 411477, -10000, -10000, -10000, -10000, -10000, -10000, 336387, ! 45: 298851, 338667, 236487, 249327, 230487, 224103, -10000, -10000, -10000, ! 46: -10000, -10000, -10000, -10000, 408483, 266691, 229803, 246195, 227355, ! 47: 220971, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 48: 300675, 263787, 241695, 226407, 220023, -10000, -10000, -10000, -10000, ! 49: -10000, -10000, -10000, -10000, -10000, 295635, 273543, 219771, 216939, ! 50: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 51: -10000, 306519, 252747, 211431, -10000, -10000, -10000, -10000, -10000, ! 52: -10000, -10000, -10000, -10000, -10000, -10000, 304287, 262971, -10000, ! 53: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 54: -10000, -10000, 244131, -10000, -10000, -10000, -10000, -10000, -10000, ! 55: -10000, -10000, -10000, -10000, -10000, -10000, -10000 }; ! 56: ! 57: long crbnescr[ 169 ] = { ! 58: 325272, 260772, 267828, 321264, 336714, 250074, 239598, 242148, 237204, ! 59: 232380, 246348, 226380, 219996, -10000, 342528, 401760, 284652, 338442, ! 60: 256464, 251466, 248640, 242964, 238992, 252960, 232992, 226608, -10000, ! 61: -10000, 362280, 322932, 377574, 250962, 255732, 251916, 241674, 243420, ! 62: 257388, 237420, 231036, -10000, -10000, -10000, 360768, 411042, 291732, ! 63: 245382, 252696, 246828, 243216, 257184, 237216, 230832, -10000, -10000, ! 64: -10000, -10000, 528768, 416622, 376782, 338118, 336930, 412806, 426774, ! 65: 406806, 400422, -10000, -10000, -10000, -10000, -10000, 369864, 325332, ! 66: 287796, 327612, 225432, 239400, 219432, 213048, -10000, -10000, -10000, ! 67: -10000, -10000, -10000, 359160, 397428, 255636, 218748, 236268, 216300, ! 68: 209916, -10000, -10000, -10000, -10000, -10000, -10000, -10000, 331320, ! 69: 289620, 252732, 231768, 215352, 208968, -10000, -10000, -10000, -10000, ! 70: -10000, -10000, -10000, -10000, 325152, 284580, 263616, 208716, 205884, ! 71: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 72: 321240, 296592, 241692, 200376, -10000, -10000, -10000, -10000, -10000, ! 73: -10000, -10000, -10000, -10000, -10000, 348600, 294360, 253044, -10000, ! 74: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 75: -10000, 308664, 233076, -10000, -10000, -10000, -10000, -10000, -10000, ! 76: -10000, -10000, -10000, -10000, -10000, -10000, 295896 }; ! 77: ! 78: ! 79: static int ichoose2[ 5 ] = { 0, 0, 2, 6, 12 }; ! 80: static int pairpoints, runpoints; /* globals from pairuns */ ! 81: ! 82: ! 83: /* ! 84: * scorehand: ! 85: * Score the given hand of n cards and the starter card. ! 86: * n must be <= 4 ! 87: */ ! 88: scorehand(hand, starter, n, crb, do_explain) ! 89: register CARD hand[]; ! 90: CARD starter; ! 91: int n; ! 92: BOOLEAN crb; /* true if scoring crib */ ! 93: BOOLEAN do_explain; /* true if must explain this hand */ ! 94: { ! 95: CARD h[(CINHAND + 1)]; ! 96: register int i, k; ! 97: register int score; ! 98: register BOOLEAN flag; ! 99: char buf[32]; ! 100: ! 101: expl[0] = NULL; /* initialize explanation */ ! 102: score = 0; ! 103: flag = TRUE; ! 104: k = hand[0].suit; ! 105: for (i = 0; i < n; i++) { /* check for flush */ ! 106: flag = (flag && (hand[i].suit == k)); ! 107: if (hand[i].rank == JACK) /* check for his nibs */ ! 108: if (hand[i].suit == starter.suit) { ! 109: score++; ! 110: if (do_explain) ! 111: strcat(expl, "His Nobs"); ! 112: } ! 113: h[i] = hand[i]; ! 114: } ! 115: ! 116: if (flag && n >= CINHAND) { ! 117: if (do_explain && expl[0] != NULL) ! 118: strcat(expl, ", "); ! 119: if (starter.suit == k) { ! 120: score += 5; ! 121: if (do_explain) ! 122: strcat(expl, "Five-flush"); ! 123: } ! 124: else if (!crb) { ! 125: score += 4; ! 126: if (do_explain && expl[0] != NULL) ! 127: strcat(expl, ", Four-flush"); ! 128: else ! 129: strcpy(expl, "Four-flush"); ! 130: } ! 131: } ! 132: ! 133: if (do_explain && expl[0] != NULL) ! 134: strcat(expl, ", "); ! 135: h[n] = starter; ! 136: sorthand(h, n + 1); /* sort by rank */ ! 137: i = 2 * fifteens(h, n + 1); ! 138: score += i; ! 139: if (do_explain) ! 140: if (i > 0) { ! 141: (void)sprintf(buf, "%d points in fifteens", i); ! 142: strcat(expl, buf); ! 143: } ! 144: else ! 145: strcat(expl, "No fifteens"); ! 146: i = pairuns(h, n + 1); ! 147: score += i; ! 148: if (do_explain) ! 149: if (i > 0) { ! 150: (void)sprintf(buf, ", %d points in pairs, %d in runs", ! 151: pairpoints, runpoints); ! 152: strcat(expl, buf); ! 153: } ! 154: else ! 155: strcat(expl, ", No pairs/runs"); ! 156: return score; ! 157: } ! 158: ! 159: /* ! 160: * fifteens: ! 161: * Return number of fifteens in hand of n cards ! 162: */ ! 163: fifteens(hand, n) ! 164: register CARD hand[]; ! 165: int n; ! 166: { ! 167: register int *sp, *np; ! 168: register int i; ! 169: register CARD *endp; ! 170: static int sums[15], nsums[15]; ! 171: ! 172: np = nsums; ! 173: sp = sums; ! 174: i = 16; ! 175: while (--i) { ! 176: *np++ = 0; ! 177: *sp++ = 0; ! 178: } ! 179: for (endp = &hand[n]; hand < endp; hand++) { ! 180: i = hand->rank + 1; ! 181: if (i > 10) ! 182: i = 10; ! 183: np = &nsums[i]; ! 184: np[-1]++; /* one way to make this */ ! 185: sp = sums; ! 186: while (i < 15) { ! 187: *np++ += *sp++; ! 188: i++; ! 189: } ! 190: sp = sums; ! 191: np = nsums; ! 192: i = 16; ! 193: while (--i) ! 194: *sp++ = *np++; ! 195: } ! 196: return sums[14]; ! 197: } ! 198: ! 199: ! 200: ! 201: /* ! 202: * pairuns returns the number of points in the n card sorted hand ! 203: * due to pairs and runs ! 204: * this routine only works if n is strictly less than 6 ! 205: * sets the globals pairpoints and runpoints appropriately ! 206: */ ! 207: ! 208: pairuns( h, n ) ! 209: ! 210: CARD h[]; ! 211: int n; ! 212: { ! 213: register int i; ! 214: int runlength, runmult, lastmult, curmult; ! 215: int mult1, mult2, pair1, pair2; ! 216: BOOLEAN run; ! 217: ! 218: run = TRUE; ! 219: runlength = 1; ! 220: mult1 = 1; ! 221: pair1 = -1; ! 222: mult2 = 1; ! 223: pair2 = -1; ! 224: curmult = runmult = 1; ! 225: for( i = 1; i < n; i++ ) { ! 226: lastmult = curmult; ! 227: if( h[i].rank == h[i - 1].rank ) { ! 228: if( pair1 < 0 ) { ! 229: pair1 = h[i].rank; ! 230: mult1 = curmult = 2; ! 231: } ! 232: else { ! 233: if( h[i].rank == pair1 ) { ! 234: curmult = ++mult1; ! 235: } ! 236: else { ! 237: if( pair2 < 0 ) { ! 238: pair2 = h[i].rank; ! 239: mult2 = curmult = 2; ! 240: } ! 241: else { ! 242: curmult = ++mult2; ! 243: } ! 244: } ! 245: } ! 246: if( i == (n - 1) && run ) { ! 247: runmult *= curmult; ! 248: } ! 249: } ! 250: else { ! 251: curmult = 1; ! 252: if( h[i].rank == h[i - 1].rank + 1 ) { ! 253: if( run ) { ! 254: ++runlength; ! 255: } ! 256: else { ! 257: if( runlength < 3 ) { /* only if old short */ ! 258: run = TRUE; ! 259: runlength = 2; ! 260: runmult = 1; ! 261: } ! 262: } ! 263: runmult *= lastmult; ! 264: } ! 265: else { ! 266: if( run ) runmult *= lastmult; /* if just ended */ ! 267: run = FALSE; ! 268: } ! 269: } ! 270: } ! 271: pairpoints = ichoose2[ mult1 ] + ichoose2[ mult2 ]; ! 272: runpoints = ( runlength >= 3 ? runlength*runmult : 0 ); ! 273: return( pairpoints + runpoints ); ! 274: } ! 275: ! 276: ! 277: ! 278: /* ! 279: * pegscore tells how many points crd would get if played after ! 280: * the n cards in tbl during pegging ! 281: */ ! 282: ! 283: pegscore( crd, tbl, n, sum ) ! 284: ! 285: CARD crd, tbl[]; ! 286: int n; ! 287: int sum; ! 288: { ! 289: BOOLEAN got[ RANKS ]; ! 290: register int i, j, scr; ! 291: int k, lo, hi; ! 292: ! 293: sum += VAL( crd.rank ); ! 294: if( sum > 31 ) return( -1 ); ! 295: if( sum == 31 || sum == 15 ) scr = 2; ! 296: else scr = 0; ! 297: if( !n ) return( scr ); ! 298: j = 1; ! 299: while( ( crd.rank == tbl[n - j].rank ) && ( n - j >= 0 ) ) ++j; ! 300: if( j > 1 ) return( scr + ichoose2[j] ); ! 301: if( n < 2 ) return( scr ); ! 302: lo = hi = crd.rank; ! 303: for( i = 0; i < RANKS; i++ ) got[i] = FALSE; ! 304: got[ crd.rank ] = TRUE; ! 305: k = -1; ! 306: for( i = n - 1; i >= 0; --i ) { ! 307: if( got[ tbl[i].rank ] ) break; ! 308: got[ tbl[i].rank ] = TRUE; ! 309: if( tbl[i].rank < lo ) lo = tbl[i].rank; ! 310: if( tbl[i].rank > hi ) hi = tbl[i].rank; ! 311: for( j = lo; j <= hi; j++ ) if( !got[j] ) break; ! 312: if( j > hi ) k = hi - lo + 1; ! 313: } ! 314: if( k >= 3 ) return( scr + k ); ! 315: else return( scr ); ! 316: } ! 317: ! 318: ! 319: ! 320: /* ! 321: * adjust takes a two card hand that will be put in the crib ! 322: * and returns an adjusted normalized score for the number of ! 323: * points such a crib will get. ! 324: */ ! 325: ! 326: adjust( cb, tnv ) ! 327: ! 328: CARD cb[], tnv; ! 329: { ! 330: int i, c0, c1; ! 331: long scr; ! 332: ! 333: c0 = cb[0].rank; ! 334: c1 = cb[1].rank; ! 335: if( c0 > c1 ) { ! 336: i = c0; ! 337: c0 = c1; ! 338: c1 = i; ! 339: } ! 340: if( cb[0].suit != cb[1].suit ) scr = crbnescr[ RANKS*c0 + c1 ]; ! 341: else scr = crbescr[ RANKS*c0 + c1 ]; ! 342: if( scr <= 0 ) { ! 343: printf( "\nADJUST: internal error %d %d\n", c0, c1 ); ! 344: exit( 93 ); ! 345: } ! 346: return( (scr + 29400)/58800 ); ! 347: } ! 348: ! 349: ! 350:
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