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annotate libmlk-rpg/mlk/rpg/battle-entity-state-blinking.c @ 442:9c3b3935f0aa

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core: rework allocations
author David Demelier <markand@malikania.fr>
date Thu, 03 Nov 2022 21:09:25 +0100
parents 25a56ca53ac2
children 773a082f0b91
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1 /*
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2 * battle-entity-state-blinking.c -- the entity is blinking
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3 *
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4 * Copyright (c) 2020-2022 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 <mlk/core/alloc.h>
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23 #include <mlk/core/panic.h>
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24 #include <mlk/core/sprite.h>
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25 #include <mlk/core/texture.h>
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27 #include "battle-entity-state-blinking.h"
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28 #include "battle-entity-state.h"
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29 #include "battle-entity.h"
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30 #include "character.h"
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31
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32 #define TRANSPARENT (150)
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33 #define OPAQUE (255)
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34
383
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35 struct self {
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36 struct battle_entity_state_blinking data;
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37 struct battle_entity_state state;
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38 };
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39
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40 static int
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41 update(struct battle_entity_state *st, struct battle_entity *et, unsigned int ticks)
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42 {
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43 (void)et;
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44
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45 return battle_entity_state_blinking_update(st->data, ticks);
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46 }
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47
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48 static void
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49 finish(struct battle_entity_state *st, struct battle_entity *et)
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50 {
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51 (void)et;
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52
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53 free(st->data);
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54 }
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55
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56 void
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57 battle_entity_state_blinking_init(struct battle_entity_state_blinking *blk, struct battle_entity *et)
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58 {
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59 assert(blk);
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60 assert(battle_entity_ok(et));
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61
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62 blk->tex = et->ch->sprites[CHARACTER_SPRITE_NORMAL]->texture;
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63 texture_set_alpha_mod(blk->tex, TRANSPARENT);
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64 }
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65
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66 int
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67 battle_entity_state_blinking_update(struct battle_entity_state_blinking *blk, unsigned int ticks)
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68 {
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69 assert(blk);
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70
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71 blk->elapsed += ticks;
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72
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73 if (blk->elapsed >= 80) {
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74 blk->count += 1;
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75 blk->elapsed = 0;
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76 }
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77
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78 texture_set_alpha_mod(blk->tex, blk->count % 2 == 0 ? TRANSPARENT : OPAQUE);
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79
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80 return blk->count >= 3;
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81 }
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82
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83 void
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84 battle_entity_state_blinking(struct battle_entity *et)
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85 {
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86 assert(battle_entity_ok(et));
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87
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88 struct self *self;
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89
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90 self = mlk_alloc_new0(1, sizeof (*self));
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91 self->state.data = self;
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92 self->state.update = update;
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93 self->state.finish = finish;
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94
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95 battle_entity_state_blinking_init(&self->data, et);
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96 battle_entity_switch(et, &self->state);
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97 }