projects / unix-history / blame
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|---|---|---|
| f8f038ae KM |
1 | /* |
| 2 | * Copyright (c) 1980 Regents of the University of California. | |
| 4cd7a139 KB |
3 | * All rights reserved. |
| 4 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| b7647a4b KB |
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. | |
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16 | */ |
| 17 | ||
| 18 | #ifndef lint | |
| b7647a4b | 19 | static char sccsid[] = "@(#)move_robs.c 5.3 (Berkeley) %G%"; |
| 4cd7a139 | 20 | #endif /* not lint */ |
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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 | } |