Mercurial > molko

comparison libmlk-adventure/adventure/action/chest.c @ 272:a49ae1b6ea4f

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
adventure: don't use plural in directories
author David Demelier <markand@malikania.fr>
date Sat, 12 Dec 2020 12:16:47 +0100
parents libmlk-adventure/adventure/actions/chest.c@eadd3dbfa0af
children 87b8c7510717
comparison
equal deleted inserted replaced
271:eadd3dbfa0af 272:a49ae1b6ea4f
1 /*
2 * chest.c -- chest object
3 *
4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <assert.h>
20 #include <stdlib.h>
21 #include <string.h>
22
23 #include <core/animation.h>
24 #include <core/event.h>
25 #include <core/maths.h>
26 #include <core/panic.h>
27 #include <core/save.h>
28 #include <core/sound.h>
29 #include <core/sprite.h>
30
31 #include <rpg/map.h>
32
33 #include "chest.h"
34
35 #define X(c) ((c)->x - ((c)->map)->view_x)
36 #define Y(c) ((c)->y - ((c)->map)->view_y)
37 #define W(c) ((c)->animation.sprite->cellw)
38 #define H(c) ((c)->animation.sprite->cellh)
39 #define TOLERANCE (10)
40
41 static bool
42 is_near(const struct chest *c)
43 {
44 const int x = c->x - c->map->player_sprite->cellw - TOLERANCE;
45 const int y = c->y - c->map->player_sprite->cellh - TOLERANCE;
46 const unsigned int w = W(c) + c->map->player_sprite->cellw + (TOLERANCE * 2);
47 const unsigned int h = H(c) + c->map->player_sprite->cellh + (TOLERANCE * 2);
48
49 return maths_is_boxed(x, y, w, h, c->map->player_x, c->map->player_y);
50 }
51
52 static void
53 invoke(struct chest *c)
54 {
55 c->state = CHEST_STATE_ANIMATE;
56
57 animation_start(&c->animation);
58
59 if (c->sound)
60 sound_play(c->sound, -1, 0);
61 }
62
63 static void
64 handle(struct action *act, const union event *ev)
65 {
66 struct chest *c = act->data;
67
68 if (!is_near(c) || c->state != CHEST_STATE_CLOSED)
69 return;
70
71 switch (ev->type) {
72 case EVENT_KEYDOWN:
73 if (ev->key.key == KEY_ENTER)
74 invoke(c);
75 break;
76 case EVENT_CLICKDOWN:
77 if (maths_is_boxed(X(c), Y(c), W(c), H(c), ev->click.x, ev->click.y))
78 invoke(c);
79 break;
80 default:
81 break;
82 }
83 }
84
85 static bool
86 update(struct action *act, unsigned int ticks)
87 {
88 struct chest *c = act->data;
89
90 if (c->state != CHEST_STATE_ANIMATE)
91 return false;
92
93 if (animation_update(&c->animation, ticks)) {
94 c->state = CHEST_STATE_OPEN;
95
96 if (c->exec)
97 c->exec(c);
98 }
99
100 return false;
101 }
102
103 static void
104 draw(struct action *act)
105 {
106 struct chest *c = act->data;
107
108 switch (c->state) {
109 case CHEST_STATE_OPEN:
110 sprite_draw(
111 c->animation.sprite,
112 c->animation.sprite->nrows - 1,
113 c->animation.sprite->ncols - 1,
114 X(c),
115 Y(c)
116 );
117 break;
118 case CHEST_STATE_ANIMATE:
119 animation_draw(&c->animation, X(c), Y(c));
120 break;
121 default:
122 sprite_draw(c->animation.sprite, 0, 0, X(c), Y(c));
123 break;
124 }
125 }
126
127 void
128 chest_init(struct chest *c)
129 {
130 assert(c);
131
132 if (c->save && c->property) {
133 if (!save_get_property(c->save, c->property))
134 panic();
135
136 /* TODO: add an utility. */
137 if (strcmp(c->property->value, "true") == 0)
138 c->state = CHEST_STATE_OPEN;
139 }
140 }
141
142 struct action *
143 chest_action(struct chest *c)
144 {
145 assert(c);
146
147 c->action.data = c;
148 c->action.handle = handle;
149 c->action.update = update;
150 c->action.draw = draw;
151
152 return &c->action;
153 }