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1.1 ! root 1: # ! 2: static char *sccsid = "@(#)score.c 1.4 (Berkeley) 9/6/83"; ! 3: ! 4: #include <stdio.h> ! 5: #include "deck.h" ! 6: #include "cribbage.h" ! 7: ! 8: ! 9: /* ! 10: * the following arrays give the sum of the scores of the (50 2)*48 = 58800 ! 11: * hands obtainable for the crib given the two cards whose ranks index the ! 12: * array. the two arrays are for the case where the suits are equal and ! 13: * not equal respectively ! 14: */ ! 15: ! 16: long crbescr[ 169 ] = { ! 17: -10000, 271827, 278883, 332319, 347769, 261129, 250653, 253203, 248259, ! 18: 243435, 256275, 237435, 231051, -10000, -10000, 412815, 295707, 349497, ! 19: 267519, 262521, 259695, 254019, 250047, 262887, 244047, 237663, -10000, ! 20: -10000, -10000, 333987, 388629, 262017, 266787, 262971, 252729, 254475, ! 21: 267315, 248475, 242091, -10000, -10000, -10000, -10000, 422097, 302787, ! 22: 256437, 263751, 257883, 254271, 267111, 248271, 241887, -10000, -10000, ! 23: -10000, -10000, -10000, 427677, 387837, 349173, 347985, 423861, 436701, ! 24: 417861, 411477, -10000, -10000, -10000, -10000, -10000, -10000, 336387, ! 25: 298851, 338667, 236487, 249327, 230487, 224103, -10000, -10000, -10000, ! 26: -10000, -10000, -10000, -10000, 408483, 266691, 229803, 246195, 227355, ! 27: 220971, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 28: 300675, 263787, 241695, 226407, 220023, -10000, -10000, -10000, -10000, ! 29: -10000, -10000, -10000, -10000, -10000, 295635, 273543, 219771, 216939, ! 30: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 31: -10000, 306519, 252747, 211431, -10000, -10000, -10000, -10000, -10000, ! 32: -10000, -10000, -10000, -10000, -10000, -10000, 304287, 262971, -10000, ! 33: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 34: -10000, -10000, 244131, -10000, -10000, -10000, -10000, -10000, -10000, ! 35: -10000, -10000, -10000, -10000, -10000, -10000, -10000 }; ! 36: ! 37: long crbnescr[ 169 ] = { ! 38: 325272, 260772, 267828, 321264, 336714, 250074, 239598, 242148, 237204, ! 39: 232380, 246348, 226380, 219996, -10000, 342528, 401760, 284652, 338442, ! 40: 256464, 251466, 248640, 242964, 238992, 252960, 232992, 226608, -10000, ! 41: -10000, 362280, 322932, 377574, 250962, 255732, 251916, 241674, 243420, ! 42: 257388, 237420, 231036, -10000, -10000, -10000, 360768, 411042, 291732, ! 43: 245382, 252696, 246828, 243216, 257184, 237216, 230832, -10000, -10000, ! 44: -10000, -10000, 528768, 416622, 376782, 338118, 336930, 412806, 426774, ! 45: 406806, 400422, -10000, -10000, -10000, -10000, -10000, 369864, 325332, ! 46: 287796, 327612, 225432, 239400, 219432, 213048, -10000, -10000, -10000, ! 47: -10000, -10000, -10000, 359160, 397428, 255636, 218748, 236268, 216300, ! 48: 209916, -10000, -10000, -10000, -10000, -10000, -10000, -10000, 331320, ! 49: 289620, 252732, 231768, 215352, 208968, -10000, -10000, -10000, -10000, ! 50: -10000, -10000, -10000, -10000, 325152, 284580, 263616, 208716, 205884, ! 51: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 52: 321240, 296592, 241692, 200376, -10000, -10000, -10000, -10000, -10000, ! 53: -10000, -10000, -10000, -10000, -10000, 348600, 294360, 253044, -10000, ! 54: -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, -10000, ! 55: -10000, 308664, 233076, -10000, -10000, -10000, -10000, -10000, -10000, ! 56: -10000, -10000, -10000, -10000, -10000, -10000, 295896 }; ! 57: ! 58: ! 59: static int ichoose2[ 5 ] = { 0, 0, 2, 6, 12 }; ! 60: static int pairpoints, runpoints; /* globals from pairuns */ ! 61: ! 62: ! 63: /* ! 64: * scorehand: ! 65: * Score the given hand of n cards and the starter card. ! 66: * n must be <= 4 ! 67: */ ! 68: scorehand(hand, starter, n, crb, do_explain) ! 69: register CARD hand[]; ! 70: CARD starter; ! 71: int n; ! 72: BOOLEAN crb; /* true if scoring crib */ ! 73: BOOLEAN do_explain; /* true if must explain this hand */ ! 74: { ! 75: CARD h[(CINHAND + 1)]; ! 76: register int i, k; ! 77: register int score; ! 78: register BOOLEAN flag; ! 79: char buf[32]; ! 80: ! 81: expl[0] = NULL; /* initialize explanation */ ! 82: score = 0; ! 83: flag = TRUE; ! 84: k = hand[0].suit; ! 85: for (i = 0; i < n; i++) { /* check for flush */ ! 86: flag = (flag && (hand[i].suit == k)); ! 87: if (hand[i].rank == JACK) /* check for his nibs */ ! 88: if (hand[i].suit == starter.suit) { ! 89: score++; ! 90: if (do_explain) ! 91: strcat(expl, "His Nobs"); ! 92: } ! 93: h[i] = hand[i]; ! 94: } ! 95: ! 96: if (flag && n >= CINHAND) { ! 97: if (do_explain && expl[0] != NULL) ! 98: strcat(expl, ", "); ! 99: if (starter.suit == k) { ! 100: score += 5; ! 101: if (do_explain) ! 102: strcat(expl, "Five-flush"); ! 103: } ! 104: else if (!crb) { ! 105: score += 4; ! 106: if (do_explain && expl[0] != NULL) ! 107: strcat(expl, ", Four-flush"); ! 108: else ! 109: strcpy(expl, "Four-flush"); ! 110: } ! 111: } ! 112: ! 113: if (do_explain && expl[0] != NULL) ! 114: strcat(expl, ", "); ! 115: h[n] = starter; ! 116: sorthand(h, n + 1); /* sort by rank */ ! 117: i = 2 * fifteens(h, n + 1); ! 118: score += i; ! 119: if (do_explain) ! 120: if (i > 0) { ! 121: sprintf(buf, "%d points in fifteens", i); ! 122: strcat(expl, buf); ! 123: } ! 124: else ! 125: strcat(expl, "No fifteens"); ! 126: i = pairuns(h, n + 1); ! 127: score += i; ! 128: if (do_explain) ! 129: if (i > 0) { ! 130: sprintf(buf, ", %d points in pairs, %d in runs", pairpoints, ! 131: runpoints); ! 132: strcat(expl, buf); ! 133: } ! 134: else ! 135: strcat(expl, ", No pairs/runs"); ! 136: return score; ! 137: } ! 138: ! 139: /* ! 140: * fifteens: ! 141: * Return number of fifteens in hand of n cards ! 142: */ ! 143: fifteens(hand, n) ! 144: register CARD hand[]; ! 145: int n; ! 146: { ! 147: register int *sp, *np; ! 148: register int i; ! 149: register CARD *endp; ! 150: static int sums[15], nsums[15]; ! 151: ! 152: np = nsums; ! 153: sp = sums; ! 154: i = 16; ! 155: while (--i) { ! 156: *np++ = 0; ! 157: *sp++ = 0; ! 158: } ! 159: for (endp = &hand[n]; hand < endp; hand++) { ! 160: i = hand->rank + 1; ! 161: if (i > 10) ! 162: i = 10; ! 163: np = &nsums[i]; ! 164: np[-1]++; /* one way to make this */ ! 165: sp = sums; ! 166: while (i < 15) { ! 167: *np++ += *sp++; ! 168: i++; ! 169: } ! 170: sp = sums; ! 171: np = nsums; ! 172: i = 16; ! 173: while (--i) ! 174: *sp++ = *np++; ! 175: } ! 176: return sums[14]; ! 177: } ! 178: ! 179: ! 180: ! 181: /* ! 182: * pairuns returns the number of points in the n card sorted hand ! 183: * due to pairs and runs ! 184: * this routine only works if n is strictly less than 6 ! 185: * sets the globals pairpoints and runpoints appropriately ! 186: */ ! 187: ! 188: pairuns( h, n ) ! 189: ! 190: CARD h[]; ! 191: int n; ! 192: { ! 193: register int i; ! 194: int runlength, runmult, lastmult, curmult; ! 195: int mult1, mult2, pair1, pair2; ! 196: BOOLEAN run; ! 197: ! 198: run = TRUE; ! 199: runlength = 1; ! 200: mult1 = 1; ! 201: pair1 = -1; ! 202: mult2 = 1; ! 203: pair2 = -1; ! 204: curmult = runmult = 1; ! 205: for( i = 1; i < n; i++ ) { ! 206: lastmult = curmult; ! 207: if( h[i].rank == h[i - 1].rank ) { ! 208: if( pair1 < 0 ) { ! 209: pair1 = h[i].rank; ! 210: mult1 = curmult = 2; ! 211: } ! 212: else { ! 213: if( h[i].rank == pair1 ) { ! 214: curmult = ++mult1; ! 215: } ! 216: else { ! 217: if( pair2 < 0 ) { ! 218: pair2 = h[i].rank; ! 219: mult2 = curmult = 2; ! 220: } ! 221: else { ! 222: curmult = ++mult2; ! 223: } ! 224: } ! 225: } ! 226: if( i == (n - 1) && run ) { ! 227: runmult *= curmult; ! 228: } ! 229: } ! 230: else { ! 231: curmult = 1; ! 232: if( h[i].rank == h[i - 1].rank + 1 ) { ! 233: if( run ) { ! 234: ++runlength; ! 235: } ! 236: else { ! 237: if( runlength < 3 ) { /* only if old short */ ! 238: run = TRUE; ! 239: runlength = 2; ! 240: runmult = 1; ! 241: } ! 242: } ! 243: runmult *= lastmult; ! 244: } ! 245: else { ! 246: if( run ) runmult *= lastmult; /* if just ended */ ! 247: run = FALSE; ! 248: } ! 249: } ! 250: } ! 251: pairpoints = ichoose2[ mult1 ] + ichoose2[ mult2 ]; ! 252: runpoints = ( runlength >= 3 ? runlength*runmult : 0 ); ! 253: return( pairpoints + runpoints ); ! 254: } ! 255: ! 256: ! 257: ! 258: /* ! 259: * pegscore tells how many points crd would get if played after ! 260: * the n cards in tbl during pegging ! 261: */ ! 262: ! 263: pegscore( crd, tbl, n, sum ) ! 264: ! 265: CARD crd, tbl[]; ! 266: int n; ! 267: int sum; ! 268: { ! 269: BOOLEAN got[ RANKS ]; ! 270: register int i, j, scr; ! 271: int k, lo, hi; ! 272: ! 273: sum += VAL( crd.rank ); ! 274: if( sum > 31 ) return( -1 ); ! 275: if( sum == 31 || sum == 15 ) scr = 2; ! 276: else scr = 0; ! 277: if( !n ) return( scr ); ! 278: j = 1; ! 279: while( ( crd.rank == tbl[n - j].rank ) && ( n - j >= 0 ) ) ++j; ! 280: if( j > 1 ) return( scr + ichoose2[j] ); ! 281: if( n < 2 ) return( scr ); ! 282: lo = hi = crd.rank; ! 283: for( i = 0; i < RANKS; i++ ) got[i] = FALSE; ! 284: got[ crd.rank ] = TRUE; ! 285: k = -1; ! 286: for( i = n - 1; i >= 0; --i ) { ! 287: if( got[ tbl[i].rank ] ) break; ! 288: got[ tbl[i].rank ] = TRUE; ! 289: if( tbl[i].rank < lo ) lo = tbl[i].rank; ! 290: if( tbl[i].rank > hi ) hi = tbl[i].rank; ! 291: for( j = lo; j <= hi; j++ ) if( !got[j] ) break; ! 292: if( j > hi ) k = hi - lo + 1; ! 293: } ! 294: if( k >= 3 ) return( scr + k ); ! 295: else return( scr ); ! 296: } ! 297: ! 298: ! 299: ! 300: /* ! 301: * adjust takes a two card hand that will be put in the crib ! 302: * and returns an adjusted normalized score for the number of ! 303: * points such a crib will get. ! 304: */ ! 305: ! 306: adjust( cb, tnv ) ! 307: ! 308: CARD cb[], tnv; ! 309: { ! 310: int i, c0, c1; ! 311: long scr; ! 312: ! 313: c0 = cb[0].rank; ! 314: c1 = cb[1].rank; ! 315: if( c0 > c1 ) { ! 316: i = c0; ! 317: c0 = c1; ! 318: c1 = i; ! 319: } ! 320: if( cb[0].suit != cb[1].suit ) scr = crbnescr[ RANKS*c0 + c1 ]; ! 321: else scr = crbescr[ RANKS*c0 + c1 ]; ! 322: if( scr <= 0 ) { ! 323: printf( "\nADJUST: internal error %d %d\n", c0, c1 ); ! 324: exit( 93 ); ! 325: } ! 326: return( (scr + 29400)/58800 ); ! 327: } ! 328: ! 329: ! 330:
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