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annotate xrogue/maze.c @ 264:778938a5c21d

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UltraRogue: add location for character files. When using the -n option, UltraRogue will look for character files in a single location, similar to save files. The location is chosen by defining CHRDIR in getplay.c, at least until UltraRogue gets integrated with the build systems.
author John "Elwin" Edwards
date Sun, 19 Feb 2017 19:47:09 -0500
parents f54901b9c39b
children 0250220d8cdd
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1 /*
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2 maze.c - functions for dealing with mazes
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3
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4 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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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 struct b_cellscells {
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24 char num_pos; /* number of frontier cells next to you */
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25 struct cell conn[4]; /* the y,x position of above cell */
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26 } b_cells;
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27
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28 static char *maze_frontier, *maze_bits;
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29 static int maze_lines, maze_cols;
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30 static char *moffset(int y, int x);
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31 static char *foffset(int y, int x);
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32 static void rmwall(int newy, int newx, int oldy, int oldx);
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33 static void draw_maze(void);
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34 static int findcells(int y, int x);
133
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35
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36 /*
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37 * crankout:
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38 * Does actual drawing of maze to window
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39 */
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40
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41 static
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42 void
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43 crankout(void)
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44 {
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45 reg int x, y;
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46
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47 for (y = 0; y < lines - 3; y++) {
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48 move(y + 1, 0);
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49 for (x = 0; x < cols - 1; x++) {
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50 if (*moffset(y, x)) { /* here is a wall */
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51 if(y==0 || y==lines-4) /* top or bottom line */
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52 addch(HORZWALL);
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53 else if(x==0 || x==cols-2) /* left | right side */
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54 addch(VERTWALL);
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55 else if (y % 2 == 0 && x % 2 == 0) {
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56 if(*moffset(y, x-1) || *moffset(y, x+1))
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57 addch(HORZWALL);
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58 else
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59 addch(VERTWALL);
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60 }
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61 else if (y % 2 == 0)
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62 addch(HORZWALL);
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63 else
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64 addch(VERTWALL);
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65 }
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66 else
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67 addch(FLOOR);
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68 }
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69 }
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70 }
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71
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72 /*
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73 * domaze:
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74 * Draw the maze on this level.
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75 */
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76
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77 void
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78 do_maze(void)
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79 {
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80 reg int least;
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81 reg struct room *rp;
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82 reg struct linked_list *item;
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83 reg struct object *obj;
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84 int cnt;
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85 bool treas;
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86 coord tp;
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87
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88 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
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89 rp->r_flags = ISGONE; /* kill all rooms */
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90 rp->r_fires = NULL; /* no fires */
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91 }
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92 rp = &rooms[0]; /* point to only room */