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Annotation of 43BSDReno/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: (1) source distributions retain this entire copyright
        !             7:  * notice and comment, and (2) distributions including binaries display
        !             8:  * the following acknowledgement:  ``This product includes software
        !             9:  * developed by the University of California, Berkeley and its contributors''
        !            10:  * in the documentation or other materials provided with the distribution
        !            11:  * and in all advertising materials mentioning features or use of this
        !            12:  * software. Neither the name of the University nor the names of its
        !            13:  * contributors may be used to endorse or promote products derived
        !            14:  * from this software without specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
        !            16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
        !            17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)move_robs.c        5.4 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: # include      "robots.h"
        !            25: # include      <signal.h>
        !            26: 
        !            27: /*
        !            28:  * move_robots:
        !            29:  *     Move the robots around
        !            30:  */
        !            31: move_robots(was_sig)
        !            32: bool   was_sig;
        !            33: {
        !            34:        register COORD  *rp;
        !            35:        register int    y, x;
        !            36:        register int    mindist, d;
        !            37:        static COORD    newpos;
        !            38: 
        !            39:        if (Real_time)
        !            40:                signal(SIGALRM, move_robots);
        !            41: # ifdef DEBUG
        !            42:        move(Min.y, Min.x);
        !            43:        addch(inch());
        !            44:        move(Max.y, Max.x);
        !            45:        addch(inch());
        !            46: # endif DEBUG
        !            47:        for (rp = Robots; rp < &Robots[MAXROBOTS]; rp++) {
        !            48:                if (rp->y < 0)
        !            49:                        continue;
        !            50:                mvaddch(rp->y, rp->x, ' ');
        !            51:                Field[rp->y][rp->x]--;
        !            52:                rp->y += sign(My_pos.y - rp->y);
        !            53:                rp->x += sign(My_pos.x - rp->x);
        !            54:                if (rp->y <= 0)
        !            55:                        rp->y = 0;
        !            56:                else if (rp->y >= Y_FIELDSIZE)
        !            57:                        rp->y = Y_FIELDSIZE - 1;
        !            58:                if (rp->x <= 0)
        !            59:                        rp->x = 0;
        !            60:                else if (rp->x >= X_FIELDSIZE)
        !            61:                        rp->x = X_FIELDSIZE - 1;
        !            62:                Field[rp->y][rp->x]++;
        !            63:        }
        !            64: 
        !            65:        Min.y = Y_FIELDSIZE;
        !            66:        Min.x = X_FIELDSIZE;
        !            67:        Max.y = 0;
        !            68:        Max.x = 0;
        !            69:        for (rp = Robots; rp < &Robots[MAXROBOTS]; rp++)
        !            70:                if (rp->y < 0)
        !            71:                        continue;
        !            72:                else if (rp->y == My_pos.y && rp->x == My_pos.x)
        !            73:                        Dead = TRUE;
        !            74:                else if (Field[rp->y][rp->x] > 1) {
        !            75:                        mvaddch(rp->y, rp->x, HEAP);
        !            76:                        rp->y = -1;
        !            77:                        Num_robots--;
        !            78:                        if (Waiting)
        !            79:                                Wait_bonus++;
        !            80:                        add_score(ROB_SCORE);
        !            81:                }
        !            82:                else {
        !            83:                        mvaddch(rp->y, rp->x, ROBOT);
        !            84:                        if (rp->y < Min.y)
        !            85:                                Min.y = rp->y;
        !            86:                        if (rp->x < Min.x)
        !            87:                                Min.x = rp->x;
        !            88:                        if (rp->y > Max.y)
        !            89:                                Max.y = rp->y;
        !            90:                        if (rp->x > Max.x)
        !            91:                                Max.x = rp->x;
        !            92:                }
        !            93: 
        !            94:        if (was_sig) {
        !            95:                refresh();
        !            96:                if (Dead || Num_robots <= 0)
        !            97:                        longjmp(End_move);
        !            98:        }
        !            99: 
        !           100: # ifdef DEBUG
        !           101:        standout();
        !           102:        move(Min.y, Min.x);
        !           103:        addch(inch());
        !           104:        move(Max.y, Max.x);
        !           105:        addch(inch());
        !           106:        standend();
        !           107: # endif DEBUG
        !           108:        if (Real_time)
        !           109:                alarm(3);
        !           110: }
        !           111: 
        !           112: /*
        !           113:  * add_score:
        !           114:  *     Add a score to the overall point total
        !           115:  */
        !           116: add_score(add)
        !           117: int    add;
        !           118: {
        !           119:        Score += add;
        !           120:        move(Y_SCORE, X_SCORE);
        !           121:        printw("%d", Score);
        !           122: }
        !           123: 
        !           124: /*
        !           125:  * sign:
        !           126:  *     Return the sign of the number
        !           127:  */
        !           128: sign(n)
        !           129: int    n;
        !           130: {
        !           131:        if (n < 0)
        !           132:                return -1;
        !           133:        else if (n > 0)
        !           134:                return 1;
        !           135:        else
        !           136:                return 0;
        !           137: }

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