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Annotation of 43BSDTahoe/games/robots/score.c, revision 1.1

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    5.3 (Berkeley) 6/18/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: # include      "robots.h"
        !            23: # include      <pwd.h>
        !            24: 
        !            25: typedef struct {
        !            26:        int     s_uid;
        !            27:        int     s_score;
        !            28:        char    s_name[MAXNAME];
        !            29: } SCORE;
        !            30: 
        !            31: typedef struct passwd  PASSWD;
        !            32: 
        !            33: char   *Scorefile = SCOREFILE;
        !            34: 
        !            35: int    Max_per_uid = MAX_PER_UID;
        !            36: 
        !            37: static SCORE   Top[MAXSCORES];
        !            38: 
        !            39: /*
        !            40:  * score:
        !            41:  *     Post the player's score, if reasonable, and then print out the
        !            42:  *     top list.
        !            43:  */
        !            44: score()
        !            45: {
        !            46:        register int    inf;
        !            47:        register SCORE  *scp;
        !            48:        register int    uid;
        !            49:        register bool   done_show = FALSE;
        !            50:        static int      numscores, max_uid;
        !            51: 
        !            52:        Newscore = FALSE;
        !            53:        if ((inf = open(Scorefile, 2)) < 0) {
        !            54:                perror(Scorefile);
        !            55:                return;
        !            56:        }
        !            57: 
        !            58:        if (read(inf, &max_uid, sizeof max_uid) == sizeof max_uid)
        !            59:                read(inf, Top, sizeof Top);
        !            60:        else {
        !            61:                for (scp = Top; scp < &Top[MAXSCORES]; scp++)
        !            62:                        scp->s_score = -1;
        !            63:                max_uid = Max_per_uid;
        !            64:        }
        !            65: 
        !            66:        uid = getuid();
        !            67:        if (Top[MAXSCORES-1].s_score <= Score) {
        !            68:                numscores = 0;
        !            69:                for (scp = Top; scp < &Top[MAXSCORES]; scp++)
        !            70:                        if (scp->s_score < 0 ||
        !            71:                            (scp->s_uid == uid && ++numscores == max_uid)) {
        !            72:                                if (scp->s_score > Score)
        !            73:                                        break;
        !            74:                                scp->s_score = Score;
        !            75:                                scp->s_uid = uid;
        !            76:                                set_name(scp);
        !            77:                                Newscore = TRUE;
        !            78:                                break;
        !            79:                        }
        !            80:                if (scp == &Top[MAXSCORES]) {
        !            81:                        Top[MAXSCORES-1].s_score = Score;
        !            82:                        Top[MAXSCORES-1].s_uid = uid;
        !            83:                        set_name(&Top[MAXSCORES-1]);
        !            84:                        Newscore = TRUE;
        !            85:                }
        !            86:                if (Newscore)
        !            87:                        qsort(Top, MAXSCORES, sizeof Top[0], cmp_sc);
        !            88:        }
        !            89: 
        !            90:        if (!Newscore) {
        !            91:                Full_clear = FALSE;
        !            92:                close(inf);
        !            93:                return;
        !            94:        }
        !            95:        else
        !            96:                Full_clear = TRUE;
        !            97: 
        !            98:        for (scp = Top; scp < &Top[MAXSCORES]; scp++) {
        !            99:                if (scp->s_score < 0)
        !           100:                        break;
        !           101:                move((scp - Top) + 1, 15);
        !           102:                if (!done_show && scp->s_uid == uid && scp->s_score == Score)
        !           103:                        standout();
        !           104:                printw(" %d\t%d\t%-8.8s ", (scp - Top) + 1, scp->s_score, scp->s_name);
        !           105:                if (!done_show && scp->s_uid == uid && scp->s_score == Score) {
        !           106:                        standend();
        !           107:                        done_show = TRUE;
        !           108:                }
        !           109:        }
        !           110:        Num_scores = scp - Top;
        !           111:        refresh();
        !           112: 
        !           113:        if (Newscore) {
        !           114:                lseek(inf, 0L, 0);
        !           115:                write(inf, &max_uid, sizeof max_uid);
        !           116:                write(inf, Top, sizeof Top);
        !           117:        }
        !           118:        close(inf);
        !           119: }
        !           120: 
        !           121: set_name(scp)
        !           122: register SCORE *scp;
        !           123: {
        !           124:        register PASSWD *pp;
        !           125: 
        !           126:        if ((pp = getpwuid(scp->s_uid)) == NULL)
        !           127:                pp->pw_name = "???";
        !           128:        strncpy(scp->s_name, pp->pw_name, MAXNAME);
        !           129: }
        !           130: 
        !           131: /*
        !           132:  * cmp_sc:
        !           133:  *     Compare two scores.
        !           134:  */
        !           135: cmp_sc(s1, s2)
        !           136: register SCORE *s1, *s2;
        !           137: {
        !           138:        return s2->s_score - s1->s_score;
        !           139: }
        !           140: 
        !           141: /*
        !           142:  * show_score:
        !           143:  *     Show the score list for the '-s' option.
        !           144:  */
        !           145: show_score()
        !           146: {
        !           147:        register SCORE  *scp;
        !           148:        register int    inf;
        !           149:        static int      max_score;
        !           150: 
        !           151:        if ((inf = open(Scorefile, 0)) < 0) {
        !           152:                perror(Scorefile);
        !           153:                return;
        !           154:        }
        !           155: 
        !           156:        for (scp = Top; scp < &Top[MAXSCORES]; scp++)
        !           157:                scp->s_score = -1;
        !           158: 
        !           159:        read(inf, &max_score, sizeof max_score);
        !           160:        read(inf, Top, sizeof Top);
        !           161:        close(inf);
        !           162:        inf = 1;
        !           163:        for (scp = Top; scp < &Top[MAXSCORES]; scp++)
        !           164:                if (scp->s_score >= 0)
        !           165:                        printf("%d\t%d\t%.*s\n", inf++, scp->s_score, sizeof scp->s_name, scp->s_name);
        !           166: }

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