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annotate arogue5/maze.c @ 227:696277507a2e

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Rogue V4, V5: disable a cheat granting permanent monster detection. In these two games, a potion of monster detection turns on the player's SEEMONST flag. A fuse is set to call turn_see() to turn the flag back off. But the save and restore functions do not recognize turn_see() and fail to set the fuse up again. When restoring, Rogue V4 merely sets the fuse's function to NULL and leaves it burning. When it goes off, a segfault results. Rogue V5 clears all the fuse's fields, and the player retains the ability to see all monsters on the level. The save and restore code can now handle the fuse. The function used is a new wrapper, turn_see_off(), which should lead to less problems with daemons being multiple incompatible types. Also, Rogue V4 and Super-Rogue now properly clear unrecognized daemon and fuse slots when restoring a saved game.
author John "Elwin" Edwards
date Sat, 05 Mar 2016 12:10:20 -0500
parents 56e748983fa8
children 0250220d8cdd
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1 /*
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2 * maze
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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6 * All rights reserved.
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7 *
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8 * Based on "Super-Rogue"
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9 * Copyright (C) 1984 Robert D. Kindelberger
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10 * All rights reserved.
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11 *
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12 * See the file LICENSE.TXT for full copyright and licensing information.
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13 */
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14
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15 #include <stdlib.h>
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16 #include "curses.h"
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17 #include "rogue.h"
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18
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19 struct cell {
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20 char y_pos;
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21 char x_pos;
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22 };
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23
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24 struct bordercells {
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25 char num_pos; /* number of frontier cells next to you */
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26 struct cell conn[4]; /* the y,x position of above cell */
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27 } border_cells;
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28
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29 static char *frontier,
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30 *bits;
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31 static int maze_lines,
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32 maze_cols;
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33
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34 void draw_maze(void);
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35 int findcells(int y, int x);
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36 char *foffset(int y, int x);
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37 char *moffset(int y, int x);
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38 void rmwall(int newy, int newx, int oldy, int oldx);
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39
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40
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41 /*
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42 * crankout:
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43 * Does actual drawing of maze to window
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44 */
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45 void
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46 crankout(void)
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47 {
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48 reg int x, y;
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49
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50 for (y = 0; y < LINES - 3; y++) {
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51 move(y + 1, 0);
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52 for (x = 0; x < COLS - 1; x++) {
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53 if (*moffset(y, x)) { /* here is a wall */
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54 if(y==0 || y==LINES-4) /* top or bottom line */
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55 addch('-');
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56 else if(x==0 || x==COLS-2) /* left | right side */
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57 addch('|');
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58 else if (y % 2 == 0 && x % 2 == 0) {
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59 if(*moffset(y, x-1) || *moffset(y, x+1))
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60 addch('-');
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61 else
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62 addch('|');
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63 }
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64 else if (y % 2 == 0)
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65 addch('-');
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66 else
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67 addch('|');
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68 }
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69 else
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70 addch(FLOOR);
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71 }
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72 }
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73 }
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74
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75 /*
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76 * domaze:
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77 * Draw the maze on this level.
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78 */
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79 void
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80 do_maze(void)
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81 {
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82 reg int least;
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83 reg struct room *rp;
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84 reg struct linked_list *item;
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85 reg struct object *obj;
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86 int cnt;
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87 bool treas;
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88 coord tp;
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89
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90 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
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91 rp->r_flags = ISGONE; /* kill all rooms */
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92 rp->r_fires = NULL; /* no fires */
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93 }
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94 rp = &rooms[0]; /* point to only room */
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95 rp->r_flags = ISDARK; /* mazes always dark */
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96 rp->r_pos.x = 0; /* room fills whole screen */
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97 rp->r_pos.y = 1;
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98 rp->r_max.x = COLS - 1;
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99 rp->r_max.y = LINES - 3;
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100 draw_maze(); /* put maze into window */
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101 /*
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102 * add some gold to make it worth looking for
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