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1.1 ! root 1: /* ! 2: * Copyright (c) 1980 Regents of the University of California. ! 3: * All rights reserved. The Berkeley software License Agreement ! 4: * specifies the terms and conditions for redistribution. ! 5: */ ! 6: ! 7: #ifndef lint ! 8: static char sccsid[] = "@(#)score.c 5.1 (Berkeley) 5/30/85"; ! 9: #endif not lint ! 10: ! 11: #include <stdio.h> ! 12: #include "deck.h" ! 13: #include "cribbage.h" ! 14: ! 15: ! 16: /* ! 17: * the following arrays give the sum of the scores of the (50 2)*48 = 58800 ! 18: * hands obtainable for the crib given the two cards whose ranks index the ! 19: * array. the two arrays are for the case where the suits are equal and ! 20: * not equal respectively ! 21: */ ! 22: ! 23: long crbescr[ 169 ] = { ! 24: -10000, 271827, 278883, 332319, 347769, 261129, 250653, 253203, 248259, ! 25: 243435, 256275, 237435, 231051, -10000, -10000, 412815, 295707, 349497, ! 26: 267519, 262521, 259695, 254019, 250047, 262887, 244047, 237663, -10000, ! 27: -10000, -10000, 333987, 388629, 262017, 266787, 262971, 252729, 254475, ! 28: 267315, 248475, 242091, -10000, -10000, -10000, -10000, 422097, 302787, ! 29: 256437, 263751, 257883, 254271, 267111, 248271, 241887, -10000, -10000, ! 30: -10000, -10000, -10000, 427677, 387837, 349173, 347985, 423861, 436701, ! 31: 417861, 411477, -10000, -10000, -10000, -10000, -10000, -10000, 336387, ! 32: 298851, 338667, 236487, 249327, 230487, 224103, -10000, -10000, -10000, ! 33: -10000, -10000, -10000, -10000, 408483, 266691, 229803, 246195, 227355, ! 34: 220971, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 35: 300675, 263787, 241695, 226407, 220023, -10000, -10000, -10000, -10000, ! 36: -10000, -10000, -10000, -10000, -10000, 295635, 273543, 219771, 216939, ! 37: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 38: -10000, 306519, 252747, 211431, -10000, -10000, -10000, -10000, -10000, ! 39: -10000, -10000, -10000, -10000, -10000, -10000, 304287, 262971, -10000, ! 40: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 41: -10000, -10000, 244131, -10000, -10000, -10000, -10000, -10000, -10000, ! 42: -10000, -10000, -10000, -10000, -10000, -10000, -10000 }; ! 43: ! 44: long crbnescr[ 169 ] = { ! 45: 325272, 260772, 267828, 321264, 336714, 250074, 239598, 242148, 237204, ! 46: 232380, 246348, 226380, 219996, -10000, 342528, 401760, 284652, 338442, ! 47: 256464, 251466, 248640, 242964, 238992, 252960, 232992, 226608, -10000, ! 48: -10000, 362280, 322932, 377574, 250962, 255732, 251916, 241674, 243420, ! 49: 257388, 237420, 231036, -10000, -10000, -10000, 360768, 411042, 291732, ! 50: 245382, 252696, 246828, 243216, 257184, 237216, 230832, -10000, -10000, ! 51: -10000, -10000, 528768, 416622, 376782, 338118, 336930, 412806, 426774, ! 52: 406806, 400422, -10000, -10000, -10000, -10000, -10000, 369864, 325332, ! 53: 287796, 327612, 225432, 239400, 219432, 213048, -10000, -10000, -10000, ! 54: -10000, -10000, -10000, 359160, 397428, 255636, 218748, 236268, 216300, ! 55: 209916, -10000, -10000, -10000, -10000, -10000, -10000, -10000, 331320, ! 56: 289620, 252732, 231768, 215352, 208968, -10000, -10000, -10000, -10000, ! 57: -10000, -10000, -10000, -10000, 325152, 284580, 263616, 208716, 205884, ! 58: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 59: 321240, 296592, 241692, 200376, -10000, -10000, -10000, -10000, -10000, ! 60: -10000, -10000, -10000, -10000, -10000, 348600, 294360, 253044, -10000, ! 61: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 62: -10000, 308664, 233076, -10000, -10000, -10000, -10000, -10000, -10000, ! 63: -10000, -10000, -10000, -10000, -10000, -10000, 295896 }; ! 64: ! 65: ! 66: static int ichoose2[ 5 ] = { 0, 0, 2, 6, 12 }; ! 67: static int pairpoints, runpoints; /* globals from pairuns */ ! 68: ! 69: ! 70: /* ! 71: * scorehand: ! 72: * Score the given hand of n cards and the starter card. ! 73: * n must be <= 4 ! 74: */ ! 75: scorehand(hand, starter, n, crb, do_explain) ! 76: register CARD hand[]; ! 77: CARD starter; ! 78: int n; ! 79: BOOLEAN crb; /* true if scoring crib */ ! 80: BOOLEAN do_explain; /* true if must explain this hand */ ! 81: { ! 82: CARD h[(CINHAND + 1)]; ! 83: register int i, k; ! 84: register int score; ! 85: register BOOLEAN flag; ! 86: char buf[32]; ! 87: ! 88: expl[0] = NULL; /* initialize explanation */ ! 89: score = 0; ! 90: flag = TRUE; ! 91: k = hand[0].suit; ! 92: for (i = 0; i < n; i++) { /* check for flush */ ! 93: flag = (flag && (hand[i].suit == k)); ! 94: if (hand[i].rank == JACK) /* check for his nibs */ ! 95: if (hand[i].suit == starter.suit) { ! 96: score++; ! 97: if (do_explain) ! 98: strcat(expl, "His Nobs"); ! 99: } ! 100: h[i] = hand[i]; ! 101: } ! 102: ! 103: if (flag && n >= CINHAND) { ! 104: if (do_explain && expl[0] != NULL) ! 105: strcat(expl, ", "); ! 106: if (starter.suit == k) { ! 107: score += 5; ! 108: if (do_explain) ! 109: strcat(expl, "Five-flush"); ! 110: } ! 111: else if (!crb) { ! 112: score += 4; ! 113: if (do_explain && expl[0] != NULL) ! 114: strcat(expl, ", Four-flush"); ! 115: else ! 116: strcpy(expl, "Four-flush"); ! 117: } ! 118: } ! 119: ! 120: if (do_explain && expl[0] != NULL) ! 121: strcat(expl, ", "); ! 122: h[n] = starter; ! 123: sorthand(h, n + 1); /* sort by rank */ ! 124: i = 2 * fifteens(h, n + 1); ! 125: score += i; ! 126: if (do_explain) ! 127: if (i > 0) { ! 128: sprintf(buf, "%d points in fifteens", i); ! 129: strcat(expl, buf); ! 130: } ! 131: else ! 132: strcat(expl, "No fifteens"); ! 133: i = pairuns(h, n + 1); ! 134: score += i; ! 135: if (do_explain) ! 136: if (i > 0) { ! 137: sprintf(buf, ", %d points in pairs, %d in runs", pairpoints, ! 138: runpoints); ! 139: strcat(expl, buf); ! 140: } ! 141: else ! 142: strcat(expl, ", No pairs/runs"); ! 143: return score; ! 144: } ! 145: ! 146: /* ! 147: * fifteens: ! 148: * Return number of fifteens in hand of n cards ! 149: */ ! 150: fifteens(hand, n) ! 151: register CARD hand[]; ! 152: int n; ! 153: { ! 154: register int *sp, *np; ! 155: register int i; ! 156: register CARD *endp; ! 157: static int sums[15], nsums[15]; ! 158: ! 159: np = nsums; ! 160: sp = sums; ! 161: i = 16; ! 162: while (--i) { ! 163: *np++ = 0; ! 164: *sp++ = 0; ! 165: } ! 166: for (endp = &hand[n]; hand < endp; hand++) { ! 167: i = hand->rank + 1; ! 168: if (i > 10) ! 169: i = 10; ! 170: np = &nsums[i]; ! 171: np[-1]++; /* one way to make this */ ! 172: sp = sums; ! 173: while (i < 15) { ! 174: *np++ += *sp++; ! 175: i++; ! 176: } ! 177: sp = sums; ! 178: np = nsums; ! 179: i = 16; ! 180: while (--i) ! 181: *sp++ = *np++; ! 182: } ! 183: return sums[14]; ! 184: } ! 185: ! 186: ! 187: ! 188: /* ! 189: * pairuns returns the number of points in the n card sorted hand ! 190: * due to pairs and runs ! 191: * this routine only works if n is strictly less than 6 ! 192: * sets the globals pairpoints and runpoints appropriately ! 193: */ ! 194: ! 195: pairuns( h, n ) ! 196: ! 197: CARD h[]; ! 198: int n; ! 199: { ! 200: register int i; ! 201: int runlength, runmult, lastmult, curmult; ! 202: int mult1, mult2, pair1, pair2; ! 203: BOOLEAN run; ! 204: ! 205: run = TRUE; ! 206: runlength = 1; ! 207: mult1 = 1; ! 208: pair1 = -1; ! 209: mult2 = 1; ! 210: pair2 = -1; ! 211: curmult = runmult = 1; ! 212: for( i = 1; i < n; i++ ) { ! 213: lastmult = curmult; ! 214: if( h[i].rank == h[i - 1].rank ) { ! 215: if( pair1 < 0 ) { ! 216: pair1 = h[i].rank; ! 217: mult1 = curmult = 2; ! 218: } ! 219: else { ! 220: if( h[i].rank == pair1 ) { ! 221: curmult = ++mult1; ! 222: } ! 223: else { ! 224: if( pair2 < 0 ) { ! 225: pair2 = h[i].rank; ! 226: mult2 = curmult = 2; ! 227: } ! 228: else { ! 229: curmult = ++mult2; ! 230: } ! 231: } ! 232: } ! 233: if( i == (n - 1) && run ) { ! 234: runmult *= curmult; ! 235: } ! 236: } ! 237: else { ! 238: curmult = 1; ! 239: if( h[i].rank == h[i - 1].rank + 1 ) { ! 240: if( run ) { ! 241: ++runlength; ! 242: } ! 243: else { ! 244: if( runlength < 3 ) { /* only if old short */ ! 245: run = TRUE; ! 246: runlength = 2; ! 247: runmult = 1; ! 248: } ! 249: } ! 250: runmult *= lastmult; ! 251: } ! 252: else { ! 253: if( run ) runmult *= lastmult; /* if just ended */ ! 254: run = FALSE; ! 255: } ! 256: } ! 257: } ! 258: pairpoints = ichoose2[ mult1 ] + ichoose2[ mult2 ]; ! 259: runpoints = ( runlength >= 3 ? runlength*runmult : 0 ); ! 260: return( pairpoints + runpoints ); ! 261: } ! 262: ! 263: ! 264: ! 265: /* ! 266: * pegscore tells how many points crd would get if played after ! 267: * the n cards in tbl during pegging ! 268: */ ! 269: ! 270: pegscore( crd, tbl, n, sum ) ! 271: ! 272: CARD crd, tbl[]; ! 273: int n; ! 274: int sum; ! 275: { ! 276: BOOLEAN got[ RANKS ]; ! 277: register int i, j, scr; ! 278: int k, lo, hi; ! 279: ! 280: sum += VAL( crd.rank ); ! 281: if( sum > 31 ) return( -1 ); ! 282: if( sum == 31 || sum == 15 ) scr = 2; ! 283: else scr = 0; ! 284: if( !n ) return( scr ); ! 285: j = 1; ! 286: while( ( crd.rank == tbl[n - j].rank ) && ( n - j >= 0 ) ) ++j; ! 287: if( j > 1 ) return( scr + ichoose2[j] ); ! 288: if( n < 2 ) return( scr ); ! 289: lo = hi = crd.rank; ! 290: for( i = 0; i < RANKS; i++ ) got[i] = FALSE; ! 291: got[ crd.rank ] = TRUE; ! 292: k = -1; ! 293: for( i = n - 1; i >= 0; --i ) { ! 294: if( got[ tbl[i].rank ] ) break; ! 295: got[ tbl[i].rank ] = TRUE; ! 296: if( tbl[i].rank < lo ) lo = tbl[i].rank; ! 297: if( tbl[i].rank > hi ) hi = tbl[i].rank; ! 298: for( j = lo; j <= hi; j++ ) if( !got[j] ) break; ! 299: if( j > hi ) k = hi - lo + 1; ! 300: } ! 301: if( k >= 3 ) return( scr + k ); ! 302: else return( scr ); ! 303: } ! 304: ! 305: ! 306: ! 307: /* ! 308: * adjust takes a two card hand that will be put in the crib ! 309: * and returns an adjusted normalized score for the number of ! 310: * points such a crib will get. ! 311: */ ! 312: ! 313: adjust( cb, tnv ) ! 314: ! 315: CARD cb[], tnv; ! 316: { ! 317: int i, c0, c1; ! 318: long scr; ! 319: ! 320: c0 = cb[0].rank; ! 321: c1 = cb[1].rank; ! 322: if( c0 > c1 ) { ! 323: i = c0; ! 324: c0 = c1; ! 325: c1 = i; ! 326: } ! 327: if( cb[0].suit != cb[1].suit ) scr = crbnescr[ RANKS*c0 + c1 ]; ! 328: else scr = crbescr[ RANKS*c0 + c1 ]; ! 329: if( scr <= 0 ) { ! 330: printf( "\nADJUST: internal error %d %d\n", c0, c1 ); ! 331: exit( 93 ); ! 332: } ! 333: return( (scr + 29400)/58800 ); ! 334: } ! 335: ! 336: ! 337:
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