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annotate arogue7/outside.c @ 285:17005af49963

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Fix some potential problems detected by clang. Most of these are unnecessary comparisons and functions returning the wrong types.
author John "Elwin" Edwards
date Sat, 23 Sep 2017 09:47:00 -0400
parents f9ef86cf22b2
children
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1 /*
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2 * outside.c - functions for dealing with the "outside" level
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3 *
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4 * Advanced Rogue
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5 * Copyright (C) 1984, 1985, 1986 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 "Rogue: Exploring the Dungeons of Doom"
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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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 "curses.h"
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16 #include "rogue.h"
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17
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18 char rnd_terrain(void);
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19 char get_terrain(char one, char two, char three, char four);
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20
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21 /*
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22 * init_terrain:
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23 * Get the single "outside room" set up correctly
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24 */
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25
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26 void
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27 init_terrain(void)
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28 {
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29 register struct room *rp;
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30
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31 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
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32 rp->r_flags = ISGONE; /* kill all rooms */
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33 rp->r_fires = NULL; /* no fires */
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34 }
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35 rp = &rooms[0]; /* point to only room */
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36 rp->r_flags = ISDARK; /* outside is always dark */
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37 rp->r_pos.x = 0; /* room fills whole screen */
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38 rp->r_pos.y = 1;
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39 rp->r_max.x = cols;
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40 rp->r_max.y = lines - 3;
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41 }
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42
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43
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44
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45 void
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46 do_terrain(int basey, int basex, int deltay, int deltax, bool fresh)
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47 {
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48 register int cury, curx; /* Current y and x positions */
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49
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50 /* Lay out the boundary */
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51 for (cury=1; cury<lines-2; cury++) { /* Vertical "walls" */
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52 mvaddch(cury, 0, '|');
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53 mvaddch(cury, cols-1, '|');
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54 }
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55 for (curx=0; curx<cols; curx++) { /* Horizontal "walls" */
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56 mvaddch(1, curx, '-');
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57 mvaddch(lines-3, curx, '-');
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58 }
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59
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60 /* If we are not continuing, let's start out with a line of terrain */
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61 if (fresh) {
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62 char ch; /* Next char to add */
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63
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64 /* Move to the starting point (should be (1, 0)) */
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65 move(basey, basex);
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66 curx = basex;
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67
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68 /* Start with some random terrain */
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69 if (basex == 0) {
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70 ch = rnd_terrain();
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71 addch(ch);
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72 }
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73 else ch = CCHAR( mvinch(basey, basex) );
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74
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75 curx += deltax;
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76
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77 /* Fill in the rest of the line */
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78 while (curx > 0 && curx < cols-1) {
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79 /* Put in the next piece */
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80 ch = get_terrain(ch, '\0', '\0', '\0');
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81 mvaddch(basey, curx, ch);
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82 curx += deltax;
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83 }
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84
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85 basey++; /* Advance to next line */
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86 }
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87
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88 /* Fill in the rest of the lines */
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89 cury = basey;
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90 while (cury > 1 && cury < lines - 3) {
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