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annotate rogue4/new_level.c @ 122:65f3da34578a

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rogue4, arogue5: improve portability. Most changes merely prevent including header files that don't exist. All games now build and run on MinGW, though bugs remain.
author John "Elwin" Edwards
date Wed, 07 May 2014 14:08:38 -0700
parents 9535a08ddc39
children 1b73a8641b37
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12
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1 /*
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2 * new_level:
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3 * Dig and draw a new level
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4 *
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5 * @(#)new_level.c 4.19 (Berkeley) 1/12/82
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6 *
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7 * Rogue: Exploring the Dungeons of Doom
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8 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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9 * All rights reserved.
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10 *
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11 * See the file LICENSE.TXT for full copyright and licensing information.
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12 */
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13
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14 #include <time.h>
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15 #include <curses.h>
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16 #include <string.h>
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17 #include "rogue.h"
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18
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19 #define TREAS_ROOM 20 /* one chance in TREAS_ROOM for a treasure room */
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20 #define MAXTREAS 10 /* maximum number of treasures in a treasure room */
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21 #define MINTREAS 2 /* minimum number of treasures in a treasure room */
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22
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23 new_level()
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24 {
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25 register int rm, i;
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26 register THING *tp;
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27 register char *sp;
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28 register THING **mp;
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29 register int index;
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30 coord stairs;
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31
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32 player.t_flags &= ~ISHELD; /* unhold when you go down just in case */
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33 if (level > max_level)
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34 max_level = level;
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35 /*
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36 * Clean things off from last level
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37 */
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38 clear();
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39 for (sp = _level; sp < &_level[MAXCOLS*MAXLINES]; )
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40 *sp++ = ' ';
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41 for (sp = _flags; sp < &_flags[MAXCOLS*MAXLINES]; )
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42 *sp++ = F_REAL;
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43 for (mp = _monst; mp < &_monst[MAXCOLS*MAXLINES]; )
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44 *mp++ = NULL;
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45 clear();
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46 /*
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47 * Free up the monsters on the last level
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48 */
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49 for (tp = mlist; tp != NULL; tp = next(tp))
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50 free_list(tp->t_pack);
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51 free_list(mlist);
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52 /*
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53 * Throw away stuff left on the previous level (if anything)
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54 */
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55 free_list(lvl_obj);
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56 do_rooms(); /* Draw rooms */
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57 do_passages(); /* Draw passages */
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58 no_food++;
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59 put_things(); /* Place objects (if any) */
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60 /*
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61 * Place the staircase down.
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62 */
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63 i = 0;
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64 do {
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65 rm = rnd_room();
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66 rnd_pos(&rooms[rm], &stairs);
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67 index = INDEX(stairs.y, stairs.x);
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68 if (i++ > 100)
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69 {
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70 i = 0;
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71 srand(getpid() + (int) time((time_t *) NULL));
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72 }
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73 } until (_level[index] == FLOOR);
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74 _level[index] = STAIRS;
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75 /*
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76 * Place the traps
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77 */
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78 if (rnd(10) < level)
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79 {
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80 ntraps = rnd(level / 4) + 1;
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81 if (ntraps > MAXTRAPS)
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82 ntraps = MAXTRAPS;
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83 i = ntraps;
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84 while (i--)
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85 {
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86 do
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87 {
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88 rm = rnd_room();
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89 rnd_pos(&rooms[rm], &stairs);
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90 index = INDEX(stairs.y, stairs.x);
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91 } until (_level[index] == FLOOR && (_flags[index] & F_REAL));
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92 sp = &_flags[index];
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93 *sp &= ~(F_REAL | F_TMASK);
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94 *sp |= rnd(NTRAPS);
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95 }
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96 }
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97 do
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98 {
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99 rm = rnd_room();
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100 rnd_pos(&rooms[rm], &hero);
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101 index = INDEX(hero.y, hero.x);
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102 } until (_level[index] == FLOOR && (_flags[index] & F_REAL)
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103 && _monst[index] == NULL);
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104 enter_room(&hero);