1 | |
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2 | /* |
1 | /* |
3 | * static char *rcsid_utils_c = |
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4 | * "$Id: utils.C,v 1.9 2006/09/10 16:00:23 root Exp $"; |
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5 | */ |
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6 | |
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7 | /* |
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8 | CrossFire, A Multiplayer game for X-windows |
2 | * CrossFire, A Multiplayer game for X-windows |
9 | |
3 | * |
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4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
10 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | * Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
11 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (C) 1992 Frank Tore Johansen |
12 | |
7 | * |
13 | This program is free software; you can redistribute it and/or modify |
8 | * This program is free software; you can redistribute it and/or modify |
14 | it under the terms of the GNU General Public License as published by |
9 | * it under the terms of the GNU General Public License as published by |
15 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 2 of the License, or |
16 | (at your option) any later version. |
11 | * (at your option) any later version. |
17 | |
12 | * |
18 | This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
21 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
22 | |
17 | * |
23 | You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License |
24 | along with this program; if not, write to the Free Software |
19 | * along with this program; if not, write to the Free Software |
25 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
26 | |
21 | * |
27 | The authors can be reached via e-mail at crossfire-devel@real-time.com |
22 | * The authors can be reached via e-mail at <crossfire@schmorp.de> |
28 | */ |
23 | */ |
29 | |
24 | |
30 | /* |
25 | /* |
31 | * General convenience functions for crossfire. |
26 | * General convenience functions for crossfire. |
32 | */ |
27 | */ |
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28 | |
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29 | #include <cstdlib> |
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30 | #include <sys/types.h> |
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31 | #include <unistd.h> |
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32 | #include <sys/time.h> |
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33 | #include <time.h> |
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34 | #include <signal.h> |
33 | |
35 | |
34 | #include <global.h> |
36 | #include <global.h> |
35 | #include <funcpoint.h> |
37 | #include <funcpoint.h> |
36 | #include <material.h> |
38 | #include <material.h> |
37 | |
39 | |
38 | #include <glib.h> |
40 | #include <glib.h> |
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41 | |
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42 | rand_gen rndm; |
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43 | |
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44 | void |
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45 | tausworthe_random_generator::seed (uint32_t seed) |
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46 | { |
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47 | state [0] = max ( 2, seed * 69069U); |
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48 | state [1] = max ( 8, state [0] * 69069U); |
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49 | state [2] = max ( 16, state [1] * 69069U); |
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50 | state [3] = max (128, state [2] * 69069U); |
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51 | |
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52 | for (int i = 11; --i; ) |
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53 | operator ()(); |
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54 | } |
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55 | |
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56 | uint32_t |
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57 | tausworthe_random_generator::next () |
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58 | { |
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59 | state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U); |
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60 | state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U); |
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61 | state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U); |
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62 | state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U); |
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63 | |
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64 | return state [0] ^ state [1] ^ state [2] ^ state [3]; |
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65 | } |
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66 | |
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67 | uint32_t |
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68 | tausworthe_random_generator::get_range (uint32_t r_max) |
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69 | { |
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70 | return next () % r_max; |
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71 | } |
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72 | |
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73 | // return a number within (min .. max) |
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74 | int |
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75 | tausworthe_random_generator::get_range (int r_min, int r_max) |
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76 | { |
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77 | return r_min + (*this) (max (r_max - r_min + 1, 1)); |
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78 | } |
39 | |
79 | |
40 | /* |
80 | /* |
41 | * The random functions here take luck into account when rolling random |
81 | * The random functions here take luck into account when rolling random |
42 | * dice or numbers. This function has less of an impact the larger the |
82 | * dice or numbers. This function has less of an impact the larger the |
43 | * difference becomes in the random numbers. IE, the effect is lessened |
83 | * difference becomes in the random numbers. IE, the effect is lessened |
… | |
… | |
50 | * Roll a random number between min and max. Uses op to determine luck, |
90 | * Roll a random number between min and max. Uses op to determine luck, |
51 | * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. |
91 | * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. |
52 | * Generally, op should be the player/caster/hitter requesting the roll, |
92 | * Generally, op should be the player/caster/hitter requesting the roll, |
53 | * not the recipient (ie, the poor slob getting hit). [garbled 20010916] |
93 | * not the recipient (ie, the poor slob getting hit). [garbled 20010916] |
54 | */ |
94 | */ |
55 | |
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56 | int |
95 | int |
57 | random_roll (int min, int max, const object *op, int goodbad) |
96 | random_roll (int r_min, int r_max, const object *op, int goodbad) |
58 | { |
97 | { |
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98 | int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ |
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99 | |
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100 | if (r_max < 1 || r_max < r_min) |
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101 | { |
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102 | LOG (llevError, "Calling random_roll with min=%d max=%d\n", r_min, r_max); |
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103 | return r_min; |
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104 | } |
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105 | |
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106 | if (op->type == PLAYER) |
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107 | { |
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108 | int luck = op->stats.luck; |
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109 | |
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110 | if (rndm (base) < min (10, abs (luck))) |
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111 | { |
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112 | //TODO: take luck into account |
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113 | } |
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114 | } |
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115 | |
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116 | return rndm (r_min, r_max); |
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117 | } |
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118 | |
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119 | /* |
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120 | * This is a 64 bit version of random_roll above. This is needed |
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121 | * for exp loss calculations for players changing religions. |
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122 | */ |
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123 | |
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124 | sint64 |
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125 | random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) |
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126 | { |
59 | int omin, diff, luck, base, ran; |
127 | sint64 omin, diff, luck, ran; |
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128 | int base; |
60 | |
129 | |
61 | omin = min; |
130 | omin = min; |
62 | diff = max - min + 1; |
131 | diff = max - min + 1; |
63 | ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ |
132 | ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ |
64 | |
133 | |
65 | if (max < 1 || diff < 1) |
134 | if (max < 1 || diff < 1) |
66 | { |
135 | { |
67 | LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max); |
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68 | return (min); /* avoids a float exception */ |
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69 | } |
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70 | |
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71 | ran = RANDOM (); |
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72 | |
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73 | if (op->type != PLAYER) |
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74 | return ((ran % diff) + min); |
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75 | |
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76 | luck = op->stats.luck; |
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77 | if (RANDOM () % base < MIN (10, abs (luck))) |
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78 | { |
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79 | /* we have a winner */ |
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80 | ((luck > 0) ? (luck = 1) : (luck = -1)); |
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81 | diff -= luck; |
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82 | if (diff < 1) |
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83 | return (omin); /*check again */ |
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84 | ((goodbad) ? (min += luck) : (diff)); |
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85 | |
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86 | return (MAX (omin, MIN (max, (ran % diff) + min))); |
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87 | } |
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88 | return ((ran % diff) + min); |
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89 | } |
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90 | |
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91 | /* |
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92 | * This is a 64 bit version of random_roll above. This is needed |
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93 | * for exp loss calculations for players changing religions. |
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94 | */ |
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95 | |
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96 | sint64 |
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97 | random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) |
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98 | { |
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99 | sint64 omin, diff, luck, ran; |
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100 | int base; |
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101 | |
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102 | omin = min; |
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103 | diff = max - min + 1; |
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104 | ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ |
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105 | |
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106 | if (max < 1 || diff < 1) |
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107 | { |
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108 | #ifndef WIN32 |
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109 | LOG (llevError, "Calling random_roll with min=%lld max=%lld\n", min, max); |
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110 | #else |
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111 | LOG (llevError, "Calling random_roll with min=%I64d max=%I64d\n", min, max); |
136 | LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max); |
112 | #endif |
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113 | return (min); /* avoids a float exception */ |
137 | return (min); /* avoids a float exception */ |
114 | } |
138 | } |
115 | |
139 | |
116 | /* Don't know of a portable call to get 64 bit random values. |
140 | /* Don't know of a portable call to get 64 bit random values. |
117 | * So make a call to get two 32 bit random numbers, and just to |
141 | * So make a call to get two 32 bit random numbers, and just to |
… | |
… | |
184 | } |
208 | } |
185 | } |
209 | } |
186 | return (total); |
210 | return (total); |
187 | } |
211 | } |
188 | |
212 | |
189 | /* |
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190 | * Another convenience function. Returns a number between min and max. |
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191 | * It is suggested one use these functions rather than RANDOM()%, as it |
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192 | * would appear that a number of off-by-one-errors exist due to improper |
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193 | * use of %. This should also prevent SIGFPE. |
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194 | */ |
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195 | |
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196 | int |
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197 | rndm (int min, int max) |
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198 | { |
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199 | int diff; |
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200 | |
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201 | diff = max - min + 1; |
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202 | if (max < 1 || diff < 1) |
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203 | return (min); |
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204 | |
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205 | return (RANDOM () % diff + min); |
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206 | } |
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207 | |
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208 | /* decay and destroy persihable items in a map */ |
213 | /* decay and destroy perishable items in a map */ |
209 | |
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210 | void |
214 | void |
211 | decay_objects (mapstruct *m) |
215 | maptile::decay_objects () |
212 | { |
216 | { |
213 | int x, y, destroy; |
217 | if (!spaces) |
214 | object *op, *otmp; |
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215 | |
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216 | if (m->unique) |
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217 | return; |
218 | return; |
218 | |
219 | |
219 | for (x = 0; x < MAP_WIDTH (m); x++) |
220 | for (mapspace *ms = spaces + size (); ms-- > spaces; ) |
220 | for (y = 0; y < MAP_HEIGHT (m); y++) |
221 | for (object *above, *op = ms->bot; op; op = above) |
221 | for (op = get_map_ob (m, x, y); op; op = otmp) |
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222 | { |
222 | { |
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223 | above = op->above; |
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224 | |
223 | destroy = 0; |
225 | bool destroy = 0; |
224 | otmp = op->above; |
226 | |
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227 | // do not decay anything above unique floor tiles (yet :) |
225 | if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE)) |
228 | if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE)) |
226 | break; |
229 | break; |
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230 | |
227 | if (QUERY_FLAG (op, FLAG_IS_FLOOR) || |
231 | if (QUERY_FLAG (op, FLAG_IS_FLOOR) |
228 | QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) || |
232 | || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) |
229 | QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) || |
233 | || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) |
230 | QUERY_FLAG (op, FLAG_UNIQUE) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) || QUERY_FLAG (op, FLAG_UNPAID) || IS_LIVE (op)) |
234 | || QUERY_FLAG (op, FLAG_UNIQUE) |
231 | continue; |
235 | || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) |
232 | /* otherwise, we decay and destroy */ |
236 | || QUERY_FLAG (op, FLAG_UNPAID) |
233 | if (IS_WEAPON (op)) |
237 | || op->is_alive ()) |
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238 | ; // do not decay |
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239 | else if (op->is_weapon ()) |
234 | { |
240 | { |
235 | op->stats.dam--; |
241 | op->stats.dam--; |
236 | if (op->stats.dam < 0) |
242 | if (op->stats.dam < 0) |
237 | destroy = 1; |
243 | destroy = 1; |
238 | } |
244 | } |
239 | else if (IS_ARMOR (op)) |
245 | else if (op->is_armor ()) |
240 | { |
246 | { |
241 | op->stats.ac--; |
247 | op->stats.ac--; |
242 | if (op->stats.ac < 0) |
248 | if (op->stats.ac < 0) |
243 | destroy = 1; |
249 | destroy = 1; |
244 | } |
250 | } |
245 | else if (op->type == FOOD) |
251 | else if (op->type == FOOD) |
246 | { |
252 | { |
247 | op->stats.food -= rndm (5, 20); |
253 | op->stats.food -= rndm (5, 20); |
248 | if (op->stats.food < 0) |
254 | if (op->stats.food < 0) |
249 | destroy = 1; |
255 | destroy = 1; |
250 | } |
256 | } |
251 | else |
257 | else |
252 | { |
258 | { |
253 | if (op->material & M_PAPER || op->material & M_LEATHER || |
259 | int mat = op->material; |
254 | op->material & M_WOOD || op->material & M_ORGANIC || op->material & M_CLOTH || op->material & M_LIQUID) |
260 | |
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261 | if (mat & M_PAPER |
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262 | || mat & M_LEATHER |
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263 | || mat & M_WOOD |
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264 | || mat & M_ORGANIC |
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265 | || mat & M_CLOTH |
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266 | || mat & M_LIQUID |
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267 | || (mat & M_IRON && rndm (1, 5) == 1) |
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268 | || (mat & M_GLASS && rndm (1, 2) == 1) |
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269 | || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1) |
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270 | || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1) |
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271 | || (mat & M_ICE && temp > 32)) |
255 | destroy = 1; |
272 | destroy = 1; |
256 | if (op->material & M_IRON && rndm (1, 5) == 1) |
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257 | destroy = 1; |
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258 | if (op->material & M_GLASS && rndm (1, 2) == 1) |
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259 | destroy = 1; |
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260 | if ((op->material & M_STONE || op->material & M_ADAMANT) && rndm (1, 10) == 1) |
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261 | destroy = 1; |
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262 | if ((op->material & M_SOFT_METAL || op->material & M_BONE) && rndm (1, 3) == 1) |
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263 | destroy = 1; |
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264 | if (op->material & M_ICE && MAP_TEMP (m) > 32) |
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265 | destroy = 1; |
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266 | } |
273 | } |
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274 | |
267 | /* adjust overall chance below */ |
275 | /* adjust overall chance below */ |
268 | if (destroy && rndm (0, 1)) |
276 | if (destroy && rndm (0, 1)) |
269 | { |
277 | op->destroy (); |
270 | remove_ob (op); |
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271 | free_object (op); |
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272 | } |
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273 | } |
278 | } |
274 | } |
279 | } |
275 | |
280 | |
276 | /* convert materialname to materialtype_t */ |
281 | /* convert materialname to materialtype_t */ |
277 | |
282 | |
278 | materialtype_t * |
283 | materialtype_t * |
… | |
… | |
306 | return; |
311 | return; |
307 | |
312 | |
308 | if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) |
313 | if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) |
309 | return; |
314 | return; |
310 | |
315 | |
311 | if (!IS_ARMOR (op)) |
316 | if (!op->is_armor ()) |
312 | return; |
317 | return; |
313 | |
318 | |
314 | mt = name_to_material (op->materialname); |
319 | mt = name_to_material (op->materialname); |
315 | if (!mt) |
320 | if (!mt) |
316 | { |
321 | { |
… | |
… | |
362 | { |
367 | { |
363 | if (op->material & mt->material && rndm (1, 100) <= mt->chance && |
368 | if (op->material & mt->material && rndm (1, 100) <= mt->chance && |
364 | difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0)) |
369 | difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0)) |
365 | { |
370 | { |
366 | lmt = mt; |
371 | lmt = mt; |
367 | if (!(IS_WEAPON (op) || IS_ARMOR (op))) |
372 | if (!(op->is_weapon () || op->is_armor ())) |
368 | break; |
373 | break; |
369 | } |
374 | } |
370 | } |
375 | } |
371 | #endif |
376 | #endif |
372 | } |
377 | } |
… | |
… | |
380 | #ifndef NEW_MATERIAL_CODE |
385 | #ifndef NEW_MATERIAL_CODE |
381 | op->materialname = lmt->name; |
386 | op->materialname = lmt->name; |
382 | return; |
387 | return; |
383 | #else |
388 | #else |
384 | |
389 | |
385 | if (op->stats.dam && IS_WEAPON (op)) |
390 | if (op->stats.dam && op->is_weapon ()) |
386 | { |
391 | { |
387 | op->stats.dam += lmt->damage; |
392 | op->stats.dam += lmt->damage; |
388 | if (op->stats.dam < 1) |
393 | if (op->stats.dam < 1) |
389 | op->stats.dam = 1; |
394 | op->stats.dam = 1; |
390 | } |
395 | } |
391 | if (op->stats.sp && op->type == BOW) |
396 | if (op->stats.sp && op->type == BOW) |
392 | op->stats.sp += lmt->sp; |
397 | op->stats.sp += lmt->sp; |
393 | if (op->stats.wc && IS_WEAPON (op)) |
398 | if (op->stats.wc && op->is_weapon ()) |
394 | op->stats.wc += lmt->wc; |
399 | op->stats.wc += lmt->wc; |
395 | if (IS_ARMOR (op)) |
400 | if (op->is_armor ()) |
396 | { |
401 | { |
397 | if (op->stats.ac) |
402 | if (op->stats.ac) |
398 | op->stats.ac += lmt->ac; |
403 | op->stats.ac += lmt->ac; |
399 | for (j = 0; j < NROFATTACKS; j++) |
404 | for (j = 0; j < NROFATTACKS; j++) |
400 | if (op->resist[j] != 0) |
405 | if (op->resist[j] != 0) |
… | |
… | |
406 | op->resist[j] = -100; |
411 | op->resist[j] = -100; |
407 | } |
412 | } |
408 | } |
413 | } |
409 | op->materialname = add_string (lmt->name); |
414 | op->materialname = add_string (lmt->name); |
410 | /* dont make it unstackable if it doesn't need to be */ |
415 | /* dont make it unstackable if it doesn't need to be */ |
411 | if (IS_WEAPON (op) || IS_ARMOR (op)) |
416 | if (op->is_weapon () || op->is_armor ()) |
412 | { |
417 | { |
413 | op->weight = (op->weight * lmt->weight) / 100; |
418 | op->weight = (op->weight * lmt->weight) / 100; |
414 | op->value = (op->value * lmt->value) / 100; |
419 | op->value = (op->value * lmt->value) / 100; |
415 | } |
420 | } |
416 | #endif |
421 | #endif |
… | |
… | |
531 | |
536 | |
532 | strncpy (tmp, input, MAX_BUF - 5); |
537 | strncpy (tmp, input, MAX_BUF - 5); |
533 | /*trim all trailing commas, spaces etc. */ |
538 | /*trim all trailing commas, spaces etc. */ |
534 | for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) |
539 | for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) |
535 | tmp[i] = '\0'; |
540 | tmp[i] = '\0'; |
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|
541 | |
536 | strcat (tmp, "."); |
542 | strcat (tmp, "."); |
537 | |
543 | |
538 | p = strrchr (tmp, ','); |
544 | p = strrchr (tmp, ','); |
539 | if (p) |
545 | if (p) |
540 | { |
546 | { |
… | |
… | |
544 | strcat (input, " and"); |
550 | strcat (input, " and"); |
545 | strcat (input, p); |
551 | strcat (input, p); |
546 | } |
552 | } |
547 | else |
553 | else |
548 | strcpy (input, tmp); |
554 | strcpy (input, tmp); |
|
|
555 | |
549 | return; |
556 | return; |
550 | } |
557 | } |
551 | |
558 | |
|
|
559 | ///////////////////////////////////////////////////////////////////////////// |
|
|
560 | |
552 | void * |
561 | void |
553 | zero_initialised::operator |
562 | fork_abort (const char *msg) |
554 | new (size_t s) |
|
|
555 | { |
563 | { |
556 | //return calloc (1, s); |
564 | if (!fork ()) |
557 | return g_slice_alloc0 (s); |
565 | { |
558 | } |
566 | signal (SIGABRT, SIG_DFL); |
|
|
567 | abort (); |
|
|
568 | } |
559 | |
569 | |
560 | void * |
570 | LOG (llevError, "fork abort: %s\n", msg); |
561 | zero_initialised::operator |
|
|
562 | new[] (size_t s) |
|
|
563 | { |
|
|
564 | //return calloc (1, s); |
|
|
565 | return g_slice_alloc0 (s); |
|
|
566 | } |
571 | } |
567 | |
572 | |
568 | void |
573 | void *salloc_ (int n) throw (std::bad_alloc) |
569 | zero_initialised::operator |
|
|
570 | delete (void *p, size_t s) |
|
|
571 | { |
574 | { |
572 | //free (p); return; |
575 | void *ptr = g_slice_alloc (n); |
573 | g_slice_free1 (s, p); |
|
|
574 | } |
|
|
575 | |
576 | |
576 | void |
577 | if (!ptr) |
577 | zero_initialised::operator |
578 | throw std::bad_alloc (); |
578 | delete[] (void *p, size_t s) |
579 | |
579 | { |
580 | return ptr; |
580 | //free (p); return; |
|
|
581 | g_slice_free1 (s, p); |
|
|
582 | } |
581 | } |
|
|
582 | |
|
|
583 | void *salloc_ (int n, void *src) throw (std::bad_alloc) |
|
|
584 | { |
|
|
585 | void *ptr = salloc_ (n); |
|
|
586 | |
|
|
587 | if (src) |
|
|
588 | memcpy (ptr, src, n); |
|
|
589 | else |
|
|
590 | memset (ptr, 0, n); |
|
|
591 | |
|
|
592 | return ptr; |
|
|
593 | } |
|
|
594 | |
|
|
595 | void assign (char *dst, const char *src, int maxlen) |
|
|
596 | { |
|
|
597 | if (!src) |
|
|
598 | src = ""; |
|
|
599 | |
|
|
600 | int len = strlen (src); |
|
|
601 | |
|
|
602 | if (len >= maxlen - 1) |
|
|
603 | { |
|
|
604 | if (maxlen <= 4) |
|
|
605 | { |
|
|
606 | memset (dst, '.', maxlen - 1); |
|
|
607 | dst [maxlen - 1] = 0; |
|
|
608 | } |
|
|
609 | else |
|
|
610 | { |
|
|
611 | memcpy (dst, src, maxlen - 4); |
|
|
612 | memcpy (dst + maxlen - 4, "...", 4); |
|
|
613 | } |
|
|
614 | } |
|
|
615 | else |
|
|
616 | memcpy (dst, src, len + 1); |
|
|
617 | } |
|
|
618 | |
|
|
619 | tstamp now () |
|
|
620 | { |
|
|
621 | struct timeval tv; |
|
|
622 | |
|
|
623 | gettimeofday (&tv, 0); |
|
|
624 | return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6); |
|
|
625 | } |
|
|
626 | |
|
|
627 | int |
|
|
628 | similar_direction (int a, int b) |
|
|
629 | { |
|
|
630 | if (!a || !b) |
|
|
631 | return 0; |
|
|
632 | |
|
|
633 | int diff = (b - a) & 7; |
|
|
634 | return diff <= 1 || diff >= 7; |
|
|
635 | } |
|
|
636 | |