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annotate libmlk-adventure/adventure/action/chest.c @ 301:f04b4ee04db3

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make: switch to GNU make
author David Demelier <markand@malikania.fr>
date Wed, 23 Jun 2021 22:41:34 +0200
parents 196264679079
children d01e83210ca2
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1 /*
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2 * chest.c -- chest object
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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 #include <stdlib.h>
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21 #include <string.h>
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22
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23 #include <core/animation.h>
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24 #include <core/event.h>
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25 #include <core/maths.h>
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26 #include <core/panic.h>
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27 #include <core/sound.h>
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28 #include <core/sprite.h>
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29
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30 #include <rpg/map.h>
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31 #include <rpg/save.h>
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32
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33 #include "chest.h"
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34
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35 #define X(c) ((c)->x - ((c)->map)->view_x)
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36 #define Y(c) ((c)->y - ((c)->map)->view_y)
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37 #define W(c) ((c)->animation.sprite->cellw)
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38 #define H(c) ((c)->animation.sprite->cellh)
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39 #define TOLERANCE (10)
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40
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41 static int
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42 is_near(const struct chest *c)
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43 {
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44 const int x = c->x - c->map->player_sprite->cellw - TOLERANCE;
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45 const int y = c->y - c->map->player_sprite->cellh - TOLERANCE;
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46 const unsigned int w = W(c) + c->map->player_sprite->cellw + (TOLERANCE * 2);
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47 const unsigned int h = H(c) + c->map->player_sprite->cellh + (TOLERANCE * 2);
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48
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49 return maths_is_boxed(x, y, w, h, c->map->player_x, c->map->player_y);
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50 }
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51
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52 static void
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53 invoke(struct chest *c)
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54 {
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55 c->state = CHEST_STATE_ANIMATE;
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56
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57 animation_start(&c->animation);
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58
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59 if (c->sound)
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60 sound_play(c->sound, -1, 0);
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61 }
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62
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63 static void
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64 handle(struct action *act, const union event *ev)
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65 {
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66 struct chest *c = act->data;
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67
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68 if (!is_near(c) || c->state != CHEST_STATE_CLOSED)
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69 return;
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70
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71 switch (ev->type) {
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72 case EVENT_KEYDOWN:
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73 if (ev->key.key == KEY_ENTER)
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74 invoke(c);
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75 break;
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76 case EVENT_CLICKDOWN:
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77 if (maths_is_boxed(X(c), Y(c), W(c), H(c), ev->click.x, ev->click.y))
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78 invoke(c);
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79 break;
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80 default:
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81 break;
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82 }
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83 }
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84
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85 static int
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86 update(struct action *act, unsigned int ticks)
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87 {
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88 struct chest *c = act->data;
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89
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90 if (c->state != CHEST_STATE_ANIMATE)
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91 return 0;
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92
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93 if (animation_update(&c->animation, ticks)) {
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94 c->state = CHEST_STATE_OPEN;
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95
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96 if (c->exec)
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97 c->exec(c);
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98 }
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99
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100 return 0;
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101 }
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102
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103 static void
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104 draw(struct action *act)
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105 {
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106 struct chest *c = act->data;
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107
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108 switch (c->state) {
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109 case CHEST_STATE_OPEN:
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110 sprite_draw(
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111 c->animation.sprite,
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112 c->animation.sprite->nrows - 1,
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113 c->animation.sprite->ncols - 1,
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114 X(c),
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115 Y(c)
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116 );
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117 break;
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118 case CHEST_STATE_ANIMATE:
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119 animation_draw(&c->animation, X(c), Y(c));
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120 break;
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121 default:
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122 sprite_draw(c->animation.sprite, 0, 0, X(c), Y(c));
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123 break;
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124 }
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125 }
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126
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127 void
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128 chest_init(struct chest *c)
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129 {
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130 assert(c);
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131
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132 if (c->save && c->property) {
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133 if (save_get_property(c->save, c->property) < 0)
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134 panic();
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135
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136 /* TODO: add an utility. */
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137 if (strcmp(c->property->value, "true") == 0)
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138 c->state = CHEST_STATE_OPEN;
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139 }
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140 }
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141
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142 struct action *
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143 chest_action(struct chest *c)
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144 {
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145 assert(c);
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146
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147 c->action.data = c;
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148 c->action.handle = handle;
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149 c->action.update = update;
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150 c->action.draw = draw;
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151
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152 return &c->action;
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153 }