| 1 | /* |
1 | /* |
| 2 | CrossFire, A Multiplayer game for X-windows |
2 | * CrossFire, A Multiplayer game for X-windows |
| 3 | |
3 | * |
|
|
4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
| 4 | Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
5 | * Copyright (C) 2002 Mark Wedel & Crossfire Development Team |
| 5 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (C) 1992 Frank Tore Johansen |
| 6 | |
7 | * |
| 7 | 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 |
| 8 | 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 |
| 9 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
11 | * (at your option) any later version. |
| 11 | |
12 | * |
| 12 | 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, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
| 16 | |
17 | * |
| 17 | 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 |
| 18 | along with this program; if not, write to the Free Software |
19 | * along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 20 | |
21 | * |
| 21 | The authors can be reached via e-mail at <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail at <crossfire@schmorp.de> |
| 22 | */ |
23 | */ |
| 23 | |
24 | |
| 24 | /* |
25 | /* |
| 25 | * General convenience functions for crossfire. |
26 | * General convenience functions for crossfire. |
| 26 | */ |
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> |
| 27 | |
35 | |
| 28 | #include <global.h> |
36 | #include <global.h> |
| 29 | #include <funcpoint.h> |
37 | #include <funcpoint.h> |
| 30 | #include <material.h> |
38 | #include <material.h> |
| 31 | |
39 | |
| 32 | #include <sys/time.h> |
|
|
| 33 | #include <time.h> |
|
|
| 34 | #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 | } |
| 35 | |
79 | |
| 36 | /* |
80 | /* |
| 37 | * The random functions here take luck into account when rolling random |
81 | * The random functions here take luck into account when rolling random |
| 38 | * 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 |
| 39 | * difference becomes in the random numbers. IE, the effect is lessened |
83 | * difference becomes in the random numbers. IE, the effect is lessened |
| … | |
… | |
| 46 | * 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, |
| 47 | * 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. |
| 48 | * Generally, op should be the player/caster/hitter requesting the roll, |
92 | * Generally, op should be the player/caster/hitter requesting the roll, |
| 49 | * not the recipient (ie, the poor slob getting hit). [garbled 20010916] |
93 | * not the recipient (ie, the poor slob getting hit). [garbled 20010916] |
| 50 | */ |
94 | */ |
| 51 | |
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|
| 52 | int |
95 | int |
| 53 | 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) |
| 54 | { |
97 | { |
| 55 | int omin, diff, luck, base, ran; |
98 | int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ |
| 56 | |
99 | |
| 57 | omin = min; |
100 | if (r_max < 1 || r_max < r_min) |
| 58 | diff = max - min + 1; |
|
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| 59 | ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ |
|
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| 60 | |
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| 61 | if (max < 1 || diff < 1) |
|
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| 62 | { |
101 | { |
| 63 | LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max); |
102 | LOG (llevError, "Calling random_roll with min=%d max=%d\n", r_min, r_max); |
| 64 | return (min); /* avoids a float exception */ |
103 | return r_min; |
| 65 | } |
104 | } |
| 66 | |
105 | |
| 67 | ran = RANDOM (); |
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| 68 | |
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| 69 | if (op->type != PLAYER) |
106 | if (op->type == PLAYER) |
| 70 | return ((ran % diff) + min); |
107 | { |
| 71 | |
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| 72 | luck = op->stats.luck; |
108 | int luck = op->stats.luck; |
| 73 | if (RANDOM () % base < MIN (10, abs (luck))) |
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 | } |
| 74 | { |
114 | } |
| 75 | /* we have a winner */ |
|
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| 76 | ((luck > 0) ? (luck = 1) : (luck = -1)); |
|
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| 77 | diff -= luck; |
|
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| 78 | if (diff < 1) |
|
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| 79 | return (omin); /*check again */ |
|
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| 80 | ((goodbad) ? (min += luck) : (diff)); |
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| 81 | |
115 | |
| 82 | return (MAX (omin, MIN (max, (ran % diff) + min))); |
116 | return rndm (r_min, r_max); |
| 83 | } |
|
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| 84 | return ((ran % diff) + min); |
|
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| 85 | } |
117 | } |
| 86 | |
118 | |
| 87 | /* |
119 | /* |
| 88 | * This is a 64 bit version of random_roll above. This is needed |
120 | * This is a 64 bit version of random_roll above. This is needed |
| 89 | * for exp loss calculations for players changing religions. |
121 | * for exp loss calculations for players changing religions. |
| … | |
… | |
| 176 | } |
208 | } |
| 177 | } |
209 | } |
| 178 | return (total); |
210 | return (total); |
| 179 | } |
211 | } |
| 180 | |
212 | |
| 181 | /* |
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| 182 | * Another convenience function. Returns a number between min and max. |
|
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| 183 | * It is suggested one use these functions rather than RANDOM()%, as it |
|
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| 184 | * would appear that a number of off-by-one-errors exist due to improper |
|
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| 185 | * use of %. This should also prevent SIGFPE. |
|
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| 186 | */ |
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| 187 | |
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| 188 | int |
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| 189 | rndm (int min, int max) |
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| 190 | { |
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| 191 | int diff; |
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| 192 | |
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| 193 | diff = max - min + 1; |
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| 194 | if (max < 1 || diff < 1) |
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| 195 | return (min); |
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| 196 | |
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| 197 | return (RANDOM () % diff + min); |
|
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| 198 | } |
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| 199 | |
|
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| 200 | /* decay and destroy persihable items in a map */ |
213 | /* decay and destroy perishable items in a map */ |
| 201 | |
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| 202 | void |
214 | void |
| 203 | decay_objects (maptile *m) |
215 | maptile::decay_objects () |
| 204 | { |
216 | { |
| 205 | int x, y, destroy; |
217 | if (!spaces) |
| 206 | object *op, *otmp; |
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| 207 | |
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| 208 | if (m->unique) |
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| 209 | return; |
218 | return; |
| 210 | |
219 | |
| 211 | for (x = 0; x < MAP_WIDTH (m); x++) |
220 | for (mapspace *ms = spaces + size (); ms-- > spaces; ) |
| 212 | for (y = 0; y < MAP_HEIGHT (m); y++) |
221 | for (object *above, *op = ms->bot; op; op = above) |
| 213 | for (op = get_map_ob (m, x, y); op; op = otmp) |
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| 214 | { |
222 | { |
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223 | above = op->above; |
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224 | |
| 215 | destroy = 0; |
225 | bool destroy = 0; |
| 216 | otmp = op->above; |
226 | |
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227 | // do not decay anything above unique floor tiles (yet :) |
| 217 | 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)) |
| 218 | break; |
229 | break; |
|
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230 | |
| 219 | if (QUERY_FLAG (op, FLAG_IS_FLOOR) || |
231 | if (QUERY_FLAG (op, FLAG_IS_FLOOR) |
| 220 | QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) || |
232 | || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) |
| 221 | QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) || |
233 | || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) |
| 222 | 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) |
| 223 | continue; |
235 | || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) |
| 224 | /* otherwise, we decay and destroy */ |
236 | || QUERY_FLAG (op, FLAG_UNPAID) |
| 225 | 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 ()) |
| 226 | { |
240 | { |
| 227 | op->stats.dam--; |
241 | op->stats.dam--; |
| 228 | if (op->stats.dam < 0) |
242 | if (op->stats.dam < 0) |
| 229 | destroy = 1; |
243 | destroy = 1; |
| 230 | } |
244 | } |
| 231 | else if (IS_ARMOR (op)) |
245 | else if (op->is_armor ()) |
| 232 | { |
246 | { |
| 233 | op->stats.ac--; |
247 | op->stats.ac--; |
| 234 | if (op->stats.ac < 0) |
248 | if (op->stats.ac < 0) |
| 235 | destroy = 1; |
249 | destroy = 1; |
| 236 | } |
250 | } |
| 237 | else if (op->type == FOOD) |
251 | else if (op->type == FOOD) |
| 238 | { |
252 | { |
| 239 | op->stats.food -= rndm (5, 20); |
253 | op->stats.food -= rndm (5, 20); |
| 240 | if (op->stats.food < 0) |
254 | if (op->stats.food < 0) |
| 241 | destroy = 1; |
255 | destroy = 1; |
| 242 | } |
256 | } |
| 243 | else |
257 | else |
| 244 | { |
258 | { |
| 245 | if (op->material & M_PAPER || op->material & M_LEATHER || |
259 | int mat = op->material; |
| 246 | 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)) |
| 247 | destroy = 1; |
272 | destroy = 1; |
| 248 | if (op->material & M_IRON && rndm (1, 5) == 1) |
|
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| 249 | destroy = 1; |
|
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| 250 | if (op->material & M_GLASS && rndm (1, 2) == 1) |
|
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| 251 | destroy = 1; |
|
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| 252 | if ((op->material & M_STONE || op->material & M_ADAMANT) && rndm (1, 10) == 1) |
|
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| 253 | destroy = 1; |
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| 254 | if ((op->material & M_SOFT_METAL || op->material & M_BONE) && rndm (1, 3) == 1) |
|
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| 255 | destroy = 1; |
|
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| 256 | if (op->material & M_ICE && MAP_TEMP (m) > 32) |
|
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| 257 | destroy = 1; |
|
|
| 258 | } |
273 | } |
|
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274 | |
| 259 | /* adjust overall chance below */ |
275 | /* adjust overall chance below */ |
| 260 | if (destroy && rndm (0, 1)) |
276 | if (destroy && rndm (0, 1)) |
| 261 | op->destroy (); |
277 | op->destroy (); |
| 262 | } |
278 | } |
| 263 | } |
279 | } |
| 264 | |
280 | |
| 265 | /* convert materialname to materialtype_t */ |
281 | /* convert materialname to materialtype_t */ |
| 266 | |
282 | |
| 267 | materialtype_t * |
283 | materialtype_t * |
| … | |
… | |
| 295 | return; |
311 | return; |
| 296 | |
312 | |
| 297 | if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) |
313 | if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) |
| 298 | return; |
314 | return; |
| 299 | |
315 | |
| 300 | if (!IS_ARMOR (op)) |
316 | if (!op->is_armor ()) |
| 301 | return; |
317 | return; |
| 302 | |
318 | |
| 303 | mt = name_to_material (op->materialname); |
319 | mt = name_to_material (op->materialname); |
| 304 | if (!mt) |
320 | if (!mt) |
| 305 | { |
321 | { |
| … | |
… | |
| 351 | { |
367 | { |
| 352 | if (op->material & mt->material && rndm (1, 100) <= mt->chance && |
368 | if (op->material & mt->material && rndm (1, 100) <= mt->chance && |
| 353 | difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0)) |
369 | difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0)) |
| 354 | { |
370 | { |
| 355 | lmt = mt; |
371 | lmt = mt; |
| 356 | if (!(IS_WEAPON (op) || IS_ARMOR (op))) |
372 | if (!(op->is_weapon () || op->is_armor ())) |
| 357 | break; |
373 | break; |
| 358 | } |
374 | } |
| 359 | } |
375 | } |
| 360 | #endif |
376 | #endif |
| 361 | } |
377 | } |
| … | |
… | |
| 369 | #ifndef NEW_MATERIAL_CODE |
385 | #ifndef NEW_MATERIAL_CODE |
| 370 | op->materialname = lmt->name; |
386 | op->materialname = lmt->name; |
| 371 | return; |
387 | return; |
| 372 | #else |
388 | #else |
| 373 | |
389 | |
| 374 | if (op->stats.dam && IS_WEAPON (op)) |
390 | if (op->stats.dam && op->is_weapon ()) |
| 375 | { |
391 | { |
| 376 | op->stats.dam += lmt->damage; |
392 | op->stats.dam += lmt->damage; |
| 377 | if (op->stats.dam < 1) |
393 | if (op->stats.dam < 1) |
| 378 | op->stats.dam = 1; |
394 | op->stats.dam = 1; |
| 379 | } |
395 | } |
| 380 | if (op->stats.sp && op->type == BOW) |
396 | if (op->stats.sp && op->type == BOW) |
| 381 | op->stats.sp += lmt->sp; |
397 | op->stats.sp += lmt->sp; |
| 382 | if (op->stats.wc && IS_WEAPON (op)) |
398 | if (op->stats.wc && op->is_weapon ()) |
| 383 | op->stats.wc += lmt->wc; |
399 | op->stats.wc += lmt->wc; |
| 384 | if (IS_ARMOR (op)) |
400 | if (op->is_armor ()) |
| 385 | { |
401 | { |
| 386 | if (op->stats.ac) |
402 | if (op->stats.ac) |
| 387 | op->stats.ac += lmt->ac; |
403 | op->stats.ac += lmt->ac; |
| 388 | for (j = 0; j < NROFATTACKS; j++) |
404 | for (j = 0; j < NROFATTACKS; j++) |
| 389 | if (op->resist[j] != 0) |
405 | if (op->resist[j] != 0) |
| … | |
… | |
| 395 | op->resist[j] = -100; |
411 | op->resist[j] = -100; |
| 396 | } |
412 | } |
| 397 | } |
413 | } |
| 398 | op->materialname = add_string (lmt->name); |
414 | op->materialname = add_string (lmt->name); |
| 399 | /* dont make it unstackable if it doesn't need to be */ |
415 | /* dont make it unstackable if it doesn't need to be */ |
| 400 | if (IS_WEAPON (op) || IS_ARMOR (op)) |
416 | if (op->is_weapon () || op->is_armor ()) |
| 401 | { |
417 | { |
| 402 | op->weight = (op->weight * lmt->weight) / 100; |
418 | op->weight = (op->weight * lmt->weight) / 100; |
| 403 | op->value = (op->value * lmt->value) / 100; |
419 | op->value = (op->value * lmt->value) / 100; |
| 404 | } |
420 | } |
| 405 | #endif |
421 | #endif |
| … | |
… | |
| 540 | return; |
556 | return; |
| 541 | } |
557 | } |
| 542 | |
558 | |
| 543 | ///////////////////////////////////////////////////////////////////////////// |
559 | ///////////////////////////////////////////////////////////////////////////// |
| 544 | |
560 | |
| 545 | #if 0 |
561 | void |
| 546 | refcounted *refcounted::rc_first; |
562 | fork_abort (const char *msg) |
| 547 | |
|
|
| 548 | refcounted::refcounted () |
|
|
| 549 | { |
563 | { |
| 550 | refcnt = 0; |
564 | if (!fork ()) |
| 551 | rc_next = rc_first; |
565 | { |
| 552 | rc_first = this; |
566 | signal (SIGABRT, SIG_DFL); |
| 553 | } |
567 | abort (); |
|
|
568 | } |
| 554 | |
569 | |
| 555 | refcounted::~refcounted () |
570 | LOG (llevError, "fork abort: %s\n", msg); |
| 556 | { |
|
|
| 557 | assert (!rc_next); |
|
|
| 558 | assert (!refcnt); |
|
|
| 559 | } |
571 | } |
| 560 | #endif |
|
|
| 561 | |
572 | |
| 562 | void *salloc (int size) throw (std::bad_alloc) |
573 | void *salloc_ (int n) throw (std::bad_alloc) |
| 563 | { |
574 | { |
| 564 | void *ptr = g_slice_alloc (size); |
575 | void *ptr = g_slice_alloc (n); |
| 565 | |
576 | |
| 566 | if (!ptr) |
577 | if (!ptr) |
| 567 | throw std::bad_alloc (); |
578 | throw std::bad_alloc (); |
| 568 | |
579 | |
| 569 | return ptr; |
580 | return ptr; |
| 570 | } |
581 | } |
| 571 | |
582 | |
| 572 | void *salloc (int size, void *src) throw (std::bad_alloc) |
583 | void *salloc_ (int n, void *src) throw (std::bad_alloc) |
| 573 | { |
584 | { |
| 574 | void *ptr = salloc (size); |
585 | void *ptr = salloc_ (n); |
| 575 | |
586 | |
| 576 | if (src) |
587 | if (src) |
| 577 | memcpy (ptr, src, size); |
588 | memcpy (ptr, src, n); |
| 578 | else |
589 | else |
| 579 | memset (ptr, 0, size); |
590 | memset (ptr, 0, n); |
| 580 | |
591 | |
| 581 | return ptr; |
592 | return ptr; |
| 582 | } |
593 | } |
| 583 | |
594 | |
| 584 | void assign (char *dst, const char *src, int maxlen) |
595 | void assign (char *dst, const char *src, int maxlen) |
| … | |
… | |
| 611 | |
622 | |
| 612 | gettimeofday (&tv, 0); |
623 | gettimeofday (&tv, 0); |
| 613 | return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6); |
624 | return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6); |
| 614 | } |
625 | } |
| 615 | |
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 | |
