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annotate examples/example-audio/example-audio.c @ 547:c7664b679a95

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misc: remove error codes for now
author David Demelier <markand@malikania.fr>
date Mon, 06 Mar 2023 20:03:00 +0100
parents 95792046d3d2
children
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1 /*
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2 * example-audio.c -- show how to use sounds and music
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3 *
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4 * Copyright (c) 2020-2023 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 <mlk/core/core.h>
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20 #include <mlk/core/event.h>
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21 #include <mlk/core/game.h>
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22 #include <mlk/core/music.h>
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23 #include <mlk/core/painter.h>
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24 #include <mlk/core/panic.h>
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25 #include <mlk/core/sound.h>
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26 #include <mlk/core/state.h>
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27 #include <mlk/core/sys.h>
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28 #include <mlk/core/util.h>
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29 #include <mlk/core/window.h>
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30
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31 #include <mlk/ui/label.h>
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32 #include <mlk/ui/ui.h>
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33
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34 #include <mlk/example/example.h>
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35 #include <mlk/example/registry.h>
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36
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37 static struct mlk_music *music;
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38 static struct mlk_sound *sound;
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39
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40 static struct mlk_label label_music = {
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41 .text = "Music: <Space> play, <p> pause, <r> resume, <q> stop, <l> loop.",
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42 .x = 10,
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43 .y = 10
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44 };
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45
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46 static struct mlk_label label_sound = {
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47 .text = "Sound: click anywhere to pop a sound.",
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48 .x = 10,
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49 .y = 30
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50 };
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51
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52 static void
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53 init(void)
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54 {
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55 if (mlk_example_init("example-audio") < 0)
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56 mlk_panic();
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57
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58 sound = &mlk_registry_sounds[MLK_REGISTRY_SOUND_FIRE];
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59 music = &mlk_registry_music[MLK_REGISTRY_MUSIC_ROMANCE];
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60 }
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61
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62 static void
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63 quit(void)
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64 {
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65 mlk_example_finish();
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66 }
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67
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68 static void
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69 handle(struct mlk_state *st, const union mlk_event *ev)
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70 {
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71 (void)st;
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72
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73 switch (ev->type) {
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74 case MLK_EVENT_CLICKDOWN:
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75 if (mlk_sound_play(sound) < 0)
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76 mlk_panic();
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77 break;
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78 case MLK_EVENT_KEYDOWN:
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79 switch (ev->key.key) {
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80 case MLK_KEY_P:
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81 mlk_music_pause(music);
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82 break;
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83 case MLK_KEY_R:
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84 mlk_music_resume(music);
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85 break;
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86 case MLK_KEY_Q:
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87 mlk_music_stop(music);
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88 break;
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89 case MLK_KEY_L:
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90 mlk_music_play(music, MLK_MUSIC_LOOP);
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91 break;
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92 case MLK_KEY_SPACE:
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93 mlk_music_play(music, 0);
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94 break;
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95 default:
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96 break;
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97 }
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98 break;
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99 case MLK_EVENT_QUIT:
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100 mlk_game_quit();
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101 break;
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102 default:
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103 break;
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104 }
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105 }
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106
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107 static void
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108 draw(struct mlk_state *st)
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109 {
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110 (void)st;
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111
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112 mlk_painter_set_color(MLK_EXAMPLE_BG);
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113 mlk_painter_clear();
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114 mlk_label_draw(&label_music);
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115 mlk_label_draw(&label_sound);
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116 mlk_painter_present();
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117 }
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118
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119 static void
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120 run(void)
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121 {
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122 struct mlk_state state = {
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123 .handle = handle,
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124 .draw = draw
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125 };
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126
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127 mlk_game_init();
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128 mlk_game_push(&state);
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129 mlk_game_loop();
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130
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131 mlk_music_finish(music);
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132 mlk_sound_finish(sound);
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133 }
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134
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135 int
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136 main(int argc, char **argv)
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137 {
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138 (void)argc;
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139 (void)argv;
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140
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141 init();
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142 run();
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143 quit();
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144 }