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annotate rogue4/prob.c @ 258:2908dc47f9e2

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UltraRogue: fix crash when restoring. The r_flags field in struct room was being written as an int and read as a short. This caused the restore functions to receive the wrong data, usually an impossible string length, and abort. This breaks save compatibility, though the save files had problems anyway: the r_fires field should have been used, instead of reading and writing r_flags twice.
author John "Elwin" Edwards
date Wed, 08 Feb 2017 19:50:36 -0500
parents 9535a08ddc39
children
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12
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1 /*
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2 *
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3 * Rogue: Exploring the Dungeons of Doom
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4 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman
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5 * All rights reserved.
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6 *
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7 * See the file LICENSE.TXT for full copyright and licensing information.
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8 */
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9
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10 # include <curses.h>
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11 # include "rogue.h"
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12
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13 # undef max
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14
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15 # define TRIES 10000
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16
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17 static char *sccsid = "@(#)prob.c 1.3 (Berkeley) 12/17/81";
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18
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19 main(ac, av)
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20 int ac;
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21 char **av;
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22 {
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23 register unsigned int prob, prob2, exp;
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24 register struct monster *mp;
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25 register unsigned int max, min, i;
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26 register unsigned int max2, min2;
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27
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28 printf("%17.17s ----experience--- ----hit points---\n", "");
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29 printf("%17.17s %7s %4s %4s %7s %4s %4s lvl\n", "monster", "avg", "min", "max", "avg", "min", "max", "max hp");
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30 seed = 0;
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31 for (mp = monsters; mp < &monsters[26]; mp++) {
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32 i = TRIES;
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33 prob2 = prob = 0;
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34 min2 = min = 30000;
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35 max2 = max = 0;
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36 while (i--) {
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37 if ((exp = roll(mp->m_stats.s_lvl, 8)) < min2)
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38 min2 = exp;
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39 if (exp > max2)
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40 max2 = exp;
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41 prob2 += exp;
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42 mp->m_stats.s_maxhp = exp;
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43 if ((exp = mp->m_stats.s_exp + exp_add(mp)) < min)
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44 min = exp;
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45 if (exp > max)
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46 max = exp;
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47 prob += exp;
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48 }
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49 printf("%17.17s: %7.2f %4d %4d %7.2f %4d %4d %3d\n", mp->m_name, ((double) prob) / TRIES, min, max, ((double) prob2) / TRIES, min2, max2, mp->m_stats.s_lvl);
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50 fflush(stdout);
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51 }
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52 }
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53
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54 exp_add(mp)
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55 register struct monster *mp;
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56 {
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57 register unsigned int mod;
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58
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59 if (mp->m_stats.s_lvl == 1)
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60 mod = mp->m_stats.s_maxhp / 8;
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61 else
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62 mod = mp->m_stats.s_maxhp / 6;
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63 if (mp->m_stats.s_lvl > 9)
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64 mod *= 20;
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65 else if (mp->m_stats.s_lvl > 6)
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66 mod *= 4;
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67 return mod;
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68 }
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69
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70 /*
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71 * roll:
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72 * roll a number of dice
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73 */
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74 roll(number, sides)
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75 register unsigned int number, sides;
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76 {
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77 register unsigned int dtotal = 0;
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78
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79 dtotal = number;
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80 while (number--)
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81 dtotal += rnd(sides);
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82 return dtotal;
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83 }
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84
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85 /*
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86 * rnd:
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87 * Pick a very random number.
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88 */
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89
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90
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91 rnd(range)
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92 register unsigned int range;
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93 {
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94
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95 return RN % range;
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96 }