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Annotation of 43BSDTahoe/games/robots/move_robs.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[] = "@(#)move_robs.c        5.3 (Berkeley) 6/18/88";
        !            20: #endif /* not lint */
        !            21: 
        !            22: # include      "robots.h"
        !            23: # include      <signal.h>
        !            24: 
        !            25: /*
        !            26:  * move_robots:
        !            27:  *     Move the robots around
        !            28:  */
        !            29: move_robots(was_sig)
        !            30: bool   was_sig;
        !            31: {
        !            32:        register COORD  *rp;
        !            33:        register int    y, x;
        !            34:        register int    mindist, d;
        !            35:        static COORD    newpos;
        !            36: 
        !            37:        if (Real_time)
        !            38:                signal(SIGALRM, move_robots);
        !            39: # ifdef DEBUG
        !            40:        move(Min.y, Min.x);
        !            41:        addch(inch());
        !            42:        move(Max.y, Max.x);
        !            43:        addch(inch());
        !            44: # endif DEBUG
        !            45:        for (rp = Robots; rp < &Robots[MAXROBOTS]; rp++) {
        !            46:                if (rp->y < 0)
        !            47:                        continue;
        !            48:                mvaddch(rp->y, rp->x, ' ');
        !            49:                Field[rp->y][rp->x]--;
        !            50:                rp->y += sign(My_pos.y - rp->y);
        !            51:                rp->x += sign(My_pos.x - rp->x);
        !            52:                if (rp->y <= 0)
        !            53:                        rp->y = 0;
        !            54:                else if (rp->y >= Y_FIELDSIZE)
        !            55:                        rp->y = Y_FIELDSIZE - 1;
        !            56:                if (rp->x <= 0)
        !            57:                        rp->x = 0;
        !            58:                else if (rp->x >= X_FIELDSIZE)
        !            59:                        rp->x = X_FIELDSIZE - 1;
        !            60:                Field[rp->y][rp->x]++;
        !            61:        }
        !            62: 
        !            63:        Min.y = Y_FIELDSIZE;
        !            64:        Min.x = X_FIELDSIZE;
        !            65:        Max.y = 0;
        !            66:        Max.x = 0;
        !            67:        for (rp = Robots; rp < &Robots[MAXROBOTS]; rp++)
        !            68:                if (rp->y < 0)
        !            69:                        continue;
        !            70:                else if (rp->y == My_pos.y && rp->x == My_pos.x)
        !            71:                        Dead = TRUE;
        !            72:                else if (Field[rp->y][rp->x] > 1) {
        !            73:                        mvaddch(rp->y, rp->x, HEAP);
        !            74:                        rp->y = -1;
        !            75:                        Num_robots--;
        !            76:                        if (Waiting)
        !            77:                                Wait_bonus++;
        !            78:                        add_score(ROB_SCORE);
        !            79:                }
        !            80:                else {
        !            81:                        mvaddch(rp->y, rp->x, ROBOT);
        !            82:                        if (rp->y < Min.y)
        !            83:                                Min.y = rp->y;
        !            84:                        if (rp->x < Min.x)
        !            85:                                Min.x = rp->x;
        !            86:                        if (rp->y > Max.y)
        !            87:                                Max.y = rp->y;
        !            88:                        if (rp->x > Max.x)
        !            89:                                Max.x = rp->x;
        !            90:                }
        !            91: 
        !            92:        if (was_sig) {
        !            93:                refresh();
        !            94:                if (Dead || Num_robots <= 0)
        !            95:                        longjmp(End_move);
        !            96:        }
        !            97: 
        !            98: # ifdef DEBUG
        !            99:        standout();
        !           100:        move(Min.y, Min.x);
        !           101:        addch(inch());
        !           102:        move(Max.y, Max.x);
        !           103:        addch(inch());
        !           104:        standend();
        !           105: # endif DEBUG
        !           106:        if (Real_time)
        !           107:                alarm(3);
        !           108: }
        !           109: 
        !           110: /*
        !           111:  * add_score:
        !           112:  *     Add a score to the overall point total
        !           113:  */
        !           114: add_score(add)
        !           115: int    add;
        !           116: {
        !           117:        Score += add;
        !           118:        move(Y_SCORE, X_SCORE);
        !           119:        printw("%d", Score);
        !           120: }
        !           121: 
        !           122: /*
        !           123:  * sign:
        !           124:  *     Return the sign of the number
        !           125:  */
        !           126: sign(n)
        !           127: int    n;
        !           128: {
        !           129:        if (n < 0)
        !           130:                return -1;
        !           131:        else if (n > 0)
        !           132:                return 1;
        !           133:        else
        !           134:                return 0;
        !           135: }

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