289
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1 /* |
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2 * selection.c -- kind of selection |
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3 * |
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4 * Copyright (c) 2020 David Demelier <markand@malikania.fr> |
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5 * |
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6 * Permission to use, copy, modify, and/or distribute this software for any |
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7 * purpose with or without fee is hereby granted, provided that the above |
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8 * copyright notice and this permission notice appear in all copies. |
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9 * |
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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17 */ |
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18 |
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19 #include <assert.h> |
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20 |
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21 #include <core/util.h> |
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22 |
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23 #include "battle.h" |
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24 #include "character.h" |
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25 #include "selection.h" |
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26 |
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27 static void |
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28 random(struct selection *slt, const struct battle *bt, const struct battle_entity *entities, size_t entitiesz) |
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29 { |
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30 struct { |
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31 const struct battle_entity *entity; |
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32 size_t position; |
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33 } table[BATTLE_ENTITY_MAX] = {0}; |
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34 |
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35 size_t tablesz = 0; |
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36 |
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37 /* |
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38 * Merge the list of valid entities into the table to select a random |
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39 * one. |
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40 */ |
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41 for (size_t i = 0; i < entitiesz; ++i) { |
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42 if (battle_entity_ok(&entities[i])) { |
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43 table[tablesz].entity = &entities[i]; |
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44 table[tablesz++].position = i; |
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45 } |
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46 } |
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47 |
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48 slt->index_character = table[util_nrand(0, tablesz)].position; |
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49 } |
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50 |
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51 static void |
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52 first(struct selection *slt, const struct battle *bt, const struct battle_entity *entities, size_t entitiesz) |
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53 { |
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54 for (size_t i = 0; i < entitiesz; ++i) { |
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55 if (battle_entity_ok(&entities[i])) { |
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56 slt->index_character = i; |
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57 break; |
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58 } |
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59 } |
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60 } |
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61 |
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62 void |
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63 selection_first(struct selection *slt, const struct battle *bt) |
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64 { |
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65 assert(slt); |
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66 assert(bt); |
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67 |
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68 if (slt->index_side == 0) |
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69 first(slt, bt, bt->enemies, BATTLE_ENEMY_MAX); |
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70 else |
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71 first(slt, bt, bt->team, BATTLE_TEAM_MAX); |
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72 } |
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73 |
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74 void |
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75 selection_random(struct selection *slt, const struct battle *bt) |
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76 { |
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77 assert(slt); |
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78 assert(bt); |
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79 |
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80 if (slt->index_side == 0) |
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81 random(slt, bt, bt->enemies, BATTLE_ENEMY_MAX); |
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82 else |
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83 random(slt, bt, bt->team, BATTLE_TEAM_MAX); |
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84 } |