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Annotation of 43BSDReno/games/trek/snova.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 provided
        !             6:  * that: (1) source distributions retain this entire copyright notice and
        !             7:  * comment, and (2) distributions including binaries display the following
        !             8:  * acknowledgement:  ``This product includes software developed by the
        !             9:  * University of California, Berkeley and its contributors'' in the
        !            10:  * documentation or other materials provided with the distribution and in
        !            11:  * all advertising materials mentioning features or use of this software.
        !            12:  * Neither the name of the University nor the names of its contributors may
        !            13:  * be used to endorse or promote products derived from this software without
        !            14:  * specific prior written permission.
        !            15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            16:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            17:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            18:  */
        !            19: 
        !            20: #ifndef lint
        !            21: static char sccsid[] = "@(#)snova.c    5.4 (Berkeley) 6/1/90";
        !            22: #endif /* not lint */
        !            23: 
        !            24: # include      "trek.h"
        !            25: 
        !            26: /*
        !            27: **  CAUSE SUPERNOVA TO OCCUR
        !            28: **
        !            29: **     A supernova occurs.  If 'ix' < 0, a random quadrant is chosen;
        !            30: **     otherwise, the current quadrant is taken, and (ix, iy) give
        !            31: **     the sector quadrants of the star which is blowing up.
        !            32: **
        !            33: **     If the supernova turns out to be in the quadrant you are in,
        !            34: **     you go into "emergency override mode", which tries to get you
        !            35: **     out of the quadrant as fast as possible.  However, if you
        !            36: **     don't have enough fuel, or if you by chance run into something,
        !            37: **     or some such thing, you blow up anyway.  Oh yeh, if you are
        !            38: **     within two sectors of the star, there is nothing that can
        !            39: **     be done for you.
        !            40: **
        !            41: **     When a star has gone supernova, the quadrant becomes uninhab-
        !            42: **     itable for the rest of eternity, i.e., the game.  If you ever
        !            43: **     try stopping in such a quadrant, you will go into emergency
        !            44: **     override mode.
        !            45: */
        !            46: 
        !            47: snova(x, y)
        !            48: int    x, y;
        !            49: {
        !            50:        int                     qx, qy;
        !            51:        register int            ix, iy;
        !            52:        int                     f;
        !            53:        int                     dx, dy;
        !            54:        int                     n;
        !            55:        register struct quad    *q;
        !            56: 
        !            57:        f = 0;
        !            58:        ix = x;
        !            59:        if (ix < 0)
        !            60:        {
        !            61:                /* choose a quadrant */
        !            62:                while (1)
        !            63:                {
        !            64:                        qx = ranf(NQUADS);
        !            65:                        qy = ranf(NQUADS);
        !            66:                        q = &Quad[qx][qy];
        !            67:                        if (q->stars > 0)
        !            68:                                break;
        !            69:                }
        !            70:                if (Ship.quadx == qx && Ship.quady == qy)
        !            71:                {
        !            72:                        /* select a particular star */
        !            73:                        n = ranf(q->stars);
        !            74:                        for (ix = 0; ix < NSECTS; ix++)
        !            75:                        {
        !            76:                                for (iy = 0; iy < NSECTS; iy++)
        !            77:                                        if (Sect[ix][iy] == STAR || Sect[ix][iy] == INHABIT)
        !            78:                                                if ((n -= 1) <= 0)
        !            79:                                                        break;
        !            80:                                if (n <= 0)
        !            81:                                        break;
        !            82:                        }
        !            83:                        f = 1;
        !            84:                }
        !            85:        }
        !            86:        else
        !            87:        {
        !            88:                /* current quadrant */
        !            89:                iy = y;
        !            90:                qx = Ship.quadx;
        !            91:                qy = Ship.quady;
        !            92:                q = &Quad[qx][qy];
        !            93:                f = 1;
        !            94:        }
        !            95:        if (f)
        !            96:        {
        !            97:                /* supernova is in same quadrant as Enterprise */
        !            98:                printf("\nRED ALERT: supernova occuring at %d,%d\n", ix, iy);
        !            99:                dx = ix - Ship.sectx;
        !           100:                dy = iy - Ship.secty;
        !           101:                if (dx * dx + dy * dy <= 2)
        !           102:                {
        !           103:                        printf("***  Emergency override attem");
        !           104:                        sleep(1);
        !           105:                        printf("\n");
        !           106:                        lose(L_SNOVA);
        !           107:                }
        !           108:                q->scanned = 1000;
        !           109:        }
        !           110:        else
        !           111:        {
        !           112:                if (!damaged(SSRADIO))
        !           113:                {
        !           114:                        q->scanned = 1000;
        !           115:                        printf("\nUhura: Captain, Starfleet Command reports a supernova\n");
        !           116:                        printf("  in quadrant %d,%d.  Caution is advised\n", qx, qy);
        !           117:                }
        !           118:        }
        !           119: 
        !           120:        /* clear out the supernova'ed quadrant */
        !           121:        dx = q->klings;
        !           122:        dy = q->stars;
        !           123:        Now.klings -= dx;
        !           124:        if (x >= 0)
        !           125:        {
        !           126:                /* Enterprise caused supernova */
        !           127:                Game.kills += dy;
        !           128:                if (q->bases)
        !           129:                        killb(qx, qy, -1);
        !           130:                Game.killk += dx;
        !           131:        }
        !           132:        else
        !           133:                if (q->bases)
        !           134:                        killb(qx, qy, 0);
        !           135:        killd(qx, qy, (x >= 0));
        !           136:        q->stars = -1;
        !           137:        q->klings = 0;
        !           138:        if (Now.klings <= 0)
        !           139:        {
        !           140:                printf("Lucky devil, that supernova destroyed the last klingon\n");
        !           141:                win();
        !           142:        }
        !           143:        return;
        !           144: }

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