Mercurial > molko
annotate libmlk-rpg/rpg/battle-entity-state-blinking.c @ 314:d01e83210ca2
misc: update years
author | David Demelier <markand@malikania.fr> |
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date | Wed, 22 Sep 2021 07:22:20 +0200 |
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1 /* |
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2 * battle-entity-state-blinking.c -- the entity is blinking |
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3 * |
314 | 4 * Copyright (c) 2020-2021 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 #include <stdlib.h> |
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21 |
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22 #include <core/alloc.h> |
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23 #include <core/panic.h> |
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24 #include <core/sprite.h> |
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25 #include <core/texture.h> |
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26 |
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27 #include "battle-entity.h" |
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28 #include "battle-entity-state.h" |
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29 #include "character.h" |
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30 |
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31 #define TRANSPARENT (150) |
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32 #define OPAQUE (255) |
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33 |
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34 struct blink { |
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35 struct battle_entity_state state; |
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36 struct texture *tex; |
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37 unsigned int elapsed; |
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38 unsigned int count; |
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39 }; |
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40 |
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41 static int |
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42 update(struct battle_entity_state *st, struct battle_entity *et, unsigned int ticks) |
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43 { |
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44 (void)et; |
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45 |
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46 struct blink *blk = st->data; |
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47 |
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48 blk->elapsed += ticks; |
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49 |
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50 if (blk->elapsed >= 80) { |
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51 blk->count += 1; |
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52 blk->elapsed = 0; |
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53 } |
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54 |
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55 texture_set_alpha_mod(blk->tex, blk->count % 2 == 0 ? TRANSPARENT : OPAQUE); |
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56 |
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57 return blk->count >= 3; |
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58 } |
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59 |
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60 static void |
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61 finish(struct battle_entity_state *st, struct battle_entity *et) |
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62 { |
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63 (void)et; |
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64 |
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65 free(st->data); |
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66 } |
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67 |
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68 void |
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69 battle_entity_state_blinking(struct battle_entity *et) |
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70 { |
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71 assert(et); |
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72 |
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73 struct blink *blk; |
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74 |
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75 if (!(blk = alloc_new0(sizeof (*blk)))) |
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76 panic(); |
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77 |
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78 blk->tex = et->ch->sprites[CHARACTER_SPRITE_NORMAL]->texture; |
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79 texture_set_alpha_mod(blk->tex, TRANSPARENT); |
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80 |
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81 blk->state.data = blk; |
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82 blk->state.update = update; |
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83 blk->state.finish = finish; |
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84 |
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85 battle_entity_switch(et, &blk->state); |
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86 } |