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annotate arogue5/outside.c @ 306:057c5114e244

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Super-Rogue: fix some out-of-range constants. Constants K_ARROW etc., for causes of death other than monsters, are in the 240-255 range. They were often passed to functions taking char, which is usually signed, making the values out of range. The function declarations have been changed to unsigned char, which is also the type used by the scoreboard code.
author John "Elwin" Edwards
date Sat, 17 Apr 2021 15:41:12 -0400
parents 56e748983fa8
children
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1 /*
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2 * 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 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 * See the file LICENSE.TXT for full copyright and licensing information.
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9 */
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10
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11 #include "curses.h"
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12 #include "rogue.h"
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13
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14 char rnd_terrain(void);
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15 char get_terrain(char one, char two, char three, char four);
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16
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17 /*
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18 * init_terrain:
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19 * Get the single "outside room" set up correctly
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20 */
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21
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22 void
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23 init_terrain(void)
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24 {
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25 register struct room *rp;
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26
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27 for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
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28 rp->r_flags = ISGONE; /* kill all rooms */
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29 rp->r_fires = NULL; /* no fires */
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30 }
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31 rp = &rooms[0]; /* point to only room */
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32 rp->r_flags = ISDARK; /* outside is always dark */
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33 rp->r_pos.x = 0; /* room fills whole screen */
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34 rp->r_pos.y = 1;
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35 rp->r_max.x = COLS;
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36 rp->r_max.y = LINES - 3;
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37 }
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38
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39
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40
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41 void
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42 do_terrain(int basey, int basex, int deltay, int deltax, bool fresh)
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43 {
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44 int cury, curx; /* Current y and x positions */
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45
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46 /* Lay out the boundary */
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47 for (cury=1; cury<LINES-2; cury++) { /* Vertical "walls" */
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48 mvaddch(cury, 0, '|');
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49 mvaddch(cury, COLS-1, '|');
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50 }
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51 for (curx=0; curx<COLS; curx++) { /* Horizontal "walls" */
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52 mvaddch(1, curx, '-');
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53 mvaddch(LINES-3, curx, '-');
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54 }
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55
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56 /* If we are not continuing, let's start out with a line of terrain */
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57 if (fresh) {
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58 char ch; /* Next char to add */
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59
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60 /* Move to the starting point (should be (1, 0)) */
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61 move(basey, basex);
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62 curx = basex;
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63
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64 /* Start with some random terrain */
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65 if (basex == 0) {
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66 ch = rnd_terrain();
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67 addch(ch);
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68 }
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69 else ch = CCHAR( mvinch(basey, basex) );
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70
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71 curx += deltax;
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72
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73 /* Fill in the rest of the line */
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74 while (curx > 0 && curx < COLS-1) {
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75 /* Put in the next piece */
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76 ch = get_terrain(ch, '\0', '\0', '\0');
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77 mvaddch(basey, curx, ch);
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78 curx += deltax;
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79 }
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80
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81 basey++; /* Advance to next line */
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82 }
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83
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84 /* Fill in the rest of the lines */
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85 cury = basey;
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86 while (cury > 1 && cury < LINES - 3) {
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87 curx = basex;
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88 while (curx > 0 && curx < COLS-1) {
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89 register char left, top_left, top, top_right;
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90 register int left_pos, top_pos;
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91
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92 /* Get the surrounding terrain */
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93 left_pos = curx - deltax;
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94 top_pos = cury - deltay;
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95
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96 left = CCHAR( mvinch(cury, left_pos) );
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97 top_left = CCHAR( mvinch(top_pos, left_pos) );
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98 top = CCHAR( mvinch(top_pos, curx) );
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99 top_right = CCHAR( mvinch(top_pos, curx + deltax) );
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100
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101 /* Put the piece of terrain on the map */
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