Return to worm.c CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / games

Annotation of 43BSDTahoe/games/worm.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: char copyright[] =
        !            20: "@(#) Copyright (c) 1980 Regents of the University of California.\n\
        !            21:  All rights reserved.\n";
        !            22: #endif /* not lint */
        !            23: 
        !            24: #ifndef lint
        !            25: static char sccsid[] = "@(#)worm.c     5.5 (Berkeley) 6/27/88";
        !            26: #endif /* not lint */
        !            27: 
        !            28: /*
        !            29:  * Worm.  Written by Michael Toy
        !            30:  * UCSC
        !            31:  */
        !            32: 
        !            33: #include <ctype.h>
        !            34: #include <curses.h>
        !            35: #include <signal.h>
        !            36: 
        !            37: #define newlink() (struct body *) malloc(sizeof (struct body));
        !            38: #define HEAD '@'
        !            39: #define BODY 'o'
        !            40: #define LENGTH 7
        !            41: #define RUNLEN 8
        !            42: #define when break;case
        !            43: #define otherwise break;default
        !            44: #define CNTRL(p) (p-'A'+1)
        !            45: #ifndef baudrate
        !            46: # define       baudrate()      _tty.sg_ospeed
        !            47: #endif
        !            48: 
        !            49: WINDOW *tv;
        !            50: WINDOW *stw;
        !            51: struct body {
        !            52:        int x;
        !            53:        int y;
        !            54:        struct body *prev;
        !            55:        struct body *next;
        !            56: } *head, *tail, goody;
        !            57: int growing = 0;
        !            58: int running = 0;
        !            59: int slow = 0;
        !            60: int score = 0;
        !            61: int start_len = LENGTH;
        !            62: char lastch;
        !            63: char outbuf[BUFSIZ];
        !            64: 
        !            65: main(argc, argv)
        !            66: char **argv;
        !            67: {
        !            68:        int leave(), wake(), suspend();
        !            69:        char ch;
        !            70: 
        !            71:        if (argc == 2)
        !            72:                start_len = atoi(argv[1]);
        !            73:        if ((start_len <= 0) || (start_len > 500))
        !            74:                start_len = LENGTH;
        !            75:        setbuf(stdout, outbuf);
        !            76:        srand(getpid());
        !            77:        signal(SIGALRM, wake);
        !            78:        signal(SIGINT, leave);
        !            79:        signal(SIGQUIT, leave);
        !            80: #ifdef SIGTSTP
        !            81:        signal(SIGTSTP, suspend);       /* process control signal */
        !            82: #endif
        !            83:        initscr();
        !            84:        crmode();
        !            85:        noecho();
        !            86:        slow = (baudrate() <= B1200);
        !            87:        clear();
        !            88:        stw = newwin(1, COLS-1, 0, 0);
        !            89:        tv = newwin(LINES-1, COLS-1, 1, 0);
        !            90:        box(tv, '*', '*');
        !            91:        scrollok(tv, FALSE);
        !            92:        scrollok(stw, FALSE);
        !            93:        wmove(stw, 0, 0);
        !            94:        wprintw(stw, " Worm");
        !            95:        refresh();
        !            96:        wrefresh(stw);
        !            97:        wrefresh(tv);
        !            98:        life();                 /* Create the worm */
        !            99:        prize();                /* Put up a goal */
        !           100:        while(1)
        !           101:        {
        !           102:                if (running)
        !           103:                {
        !           104:                        running--;
        !           105:                        process(lastch);
        !           106:                }
        !           107:                else
        !           108:                {
        !           109:                    fflush(stdout);
        !           110:                    if (read(0, &ch, 1) >= 0)
        !           111:                        process(ch);
        !           112:                }
        !           113:        }
        !           114: }
        !           115: 
        !           116: life()
        !           117: {
        !           118:        register struct body *bp, *np;
        !           119:        register int i;
        !           120: 
        !           121:        head = newlink();
        !           122:        head->x = start_len+2;
        !           123:        head->y = 12;
        !           124:        head->next = NULL;
        !           125:        display(head, HEAD);
        !           126:        for (i = 0, bp = head; i < start_len; i++, bp = np) {
        !           127:                np = newlink();
        !           128:                np->next = bp;
        !           129:                bp->prev = np;
        !           130:                np->x = bp->x - 1;
        !           131:                np->y = bp->y;
        !           132:                display(np, BODY);
        !           133:        }
        !           134:        tail = np;
        !           135:        tail->prev = NULL;
        !           136: }
        !           137: 
        !           138: display(pos, chr)
        !           139: struct body *pos;
        !           140: char chr;
        !           141: {
        !           142:        wmove(tv, pos->y, pos->x);
        !           143:        waddch(tv, chr);
        !           144: }
        !           145: 
        !           146: leave()
        !           147: {
        !           148:        endwin();
        !           149:        exit(0);
        !           150: }
        !           151: 
        !           152: wake()
        !           153: {
        !           154:        signal(SIGALRM, wake);
        !           155:        fflush(stdout);
        !           156:        process(lastch);
        !           157: }
        !           158: 
        !           159: rnd(range)
        !           160: {
        !           161:        return abs((rand()>>5)+(rand()>>5)) % range;
        !           162: }
        !           163: 
        !           164: newpos(bp)
        !           165: struct body * bp;
        !           166: {
        !           167:        do {
        !           168:                bp->y = rnd(LINES-3)+ 2;
        !           169:                bp->x = rnd(COLS-3) + 1;
        !           170:                wmove(tv, bp->y, bp->x);
        !           171:        } while(winch(tv) != ' ');
        !           172: }
        !           173: 
        !           174: prize()
        !           175: {
        !           176:        int value;
        !           177: 
        !           178:        value = rnd(9) + 1;
        !           179:        newpos(&goody);
        !           180:        waddch(tv, value+'0');
        !           181:        wrefresh(tv);
        !           182: }
        !           183: 
        !           184: process(ch)
        !           185: char ch;
        !           186: {
        !           187:        register int x,y;
        !           188:        struct body *nh;
        !           189: 
        !           190:        alarm(0);
        !           191:        x = head->x;
        !           192:        y = head->y;
        !           193:        switch(ch)
        !           194:        {
        !           195:                when 'h': x--;
        !           196:                when 'j': y++;
        !           197:                when 'k': y--;
        !           198:                when 'l': x++;
        !           199:                when 'H': x--; running = RUNLEN; ch = tolower(ch);
        !           200:                when 'J': y++; running = RUNLEN/2; ch = tolower(ch);
        !           201:                when 'K': y--; running = RUNLEN/2; ch = tolower(ch);
        !           202:                when 'L': x++; running = RUNLEN; ch = tolower(ch);
        !           203:                when '\f': setup(); return;
        !           204:                when CNTRL('Z'): suspend(); return;
        !           205:                when CNTRL('C'): crash(); return;
        !           206:                when CNTRL('D'): crash(); return;
        !           207:                otherwise: if (! running) alarm(1);
        !           208:                           return;
        !           209:        }
        !           210:        lastch = ch;
        !           211:        if (growing == 0)
        !           212:        {
        !           213:                display(tail, ' ');
        !           214:                tail->next->prev = NULL;
        !           215:                nh = tail->next;
        !           216:                free(tail);
        !           217:                tail = nh;
        !           218:        }
        !           219:        else growing--;
        !           220:        display(head, BODY);
        !           221:        wmove(tv, y, x);
        !           222:        if (isdigit(ch = winch(tv)))
        !           223:        {
        !           224:                growing += ch-'0';
        !           225:                prize();
        !           226:                score += growing;
        !           227:                running = 0;
        !           228:                wmove(stw, 0, 68);
        !           229:                wprintw(stw, "Score: %3d", score);
        !           230:                wrefresh(stw);
        !           231:        }
        !           232:        else if(ch != ' ') crash();
        !           233:        nh = newlink();
        !           234:        nh->next = NULL;
        !           235:        nh->prev = head;
        !           236:        head->next = nh;
        !           237:        nh->y = y;
        !           238:        nh->x = x;
        !           239:        display(nh, HEAD);
        !           240:        head = nh;
        !           241:        if (!(slow && running))
        !           242:                wrefresh(tv);
        !           243:        if (!running)
        !           244:                alarm(1);
        !           245: }
        !           246: 
        !           247: crash()
        !           248: {
        !           249:        sleep(2);
        !           250:        clear();
        !           251:        move(23, 0);
        !           252:        refresh();
        !           253:        printf("Well you ran into something and the game is over.\n");
        !           254:        printf("Your final score was %d\n", score);
        !           255:        leave();
        !           256: }
        !           257: 
        !           258: suspend()
        !           259: {
        !           260:        char *sh;
        !           261: 
        !           262:        move(LINES-1, 0);
        !           263:        refresh();
        !           264:        endwin();
        !           265:        fflush(stdout);
        !           266: #ifdef SIGTSTP
        !           267:        kill(getpid(), SIGTSTP);
        !           268:        signal(SIGTSTP, suspend);
        !           269: #else
        !           270:        sh = getenv("SHELL");
        !           271:        if (sh == NULL)
        !           272:                sh = "/bin/sh";
        !           273:        system(sh);
        !           274: #endif
        !           275:        crmode();
        !           276:        noecho();
        !           277:        setup();
        !           278: }
        !           279: 
        !           280: setup()
        !           281: {
        !           282:        clear();
        !           283:        refresh();
        !           284:        touchwin(stw);
        !           285:        wrefresh(stw);
        !           286:        touchwin(tv);
        !           287:        wrefresh(tv);
        !           288:        alarm(1);
        !           289: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.