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annotate examples/example-animation.c @ 187:65a07c7d8ff4

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examples: forgot the numbers.png file
author David Demelier <markand@malikania.fr>
date Fri, 06 Nov 2020 11:38:52 +0100
parents 604fad63bd9c
children 133926e08d6e
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1 /*
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2 * example-animation.c -- example on how to use animations
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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 <core/animation.h>
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20 #include <core/clock.h>
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21 #include <core/core.h>
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22 #include <core/event.h>
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23 #include <core/image.h>
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24 #include <core/sys.h>
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25 #include <core/window.h>
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26 #include <core/painter.h>
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27 #include <core/panic.h>
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28 #include <core/sprite.h>
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29 #include <core/texture.h>
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30 #include <core/util.h>
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31
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32 #include <ui/label.h>
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33 #include <ui/ui.h>
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34
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35 #include <assets/sprites/numbers.h>
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36
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37 #define W 1280
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38 #define H 720
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39
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40 static struct texture numbers;
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41
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42 static struct label label = {
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43 .text = "Keys: <Space> start or reset the animation.",
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44 .x = 10,
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45 .y = 10,
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46 .flags = LABEL_FLAGS_SHADOW
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47 };
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48
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49 static void
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50 init(void)
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51 {
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52 if (!core_init() || !ui_init())
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53 panic();
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54 if (!window_open("Example - Animation", W, H))
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55 panic();
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56 if (!image_openmem(&numbers, sprites_numbers, sizeof (sprites_numbers)))
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57 panic();
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58 }
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59
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60 static void
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61 run(void)
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62 {
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63 struct clock clock = {0};
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64 struct animation animation;
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65 struct sprite sprite;
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66 bool completed = true;
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67
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68 clock_start(&clock);
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69 sprite_init(&sprite, &numbers, 48, 48);
183
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70 animation_init(&animation, &sprite, 1000);
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71
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72 for (;;) {
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73 union event ev;
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74 unsigned int elapsed = clock_elapsed(&clock);
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75
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76 clock_start(&clock);
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77
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78 while (event_poll(&ev)) {
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79 switch (ev.type) {
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80 case EVENT_KEYDOWN:
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81 switch (ev.key.key) {
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82 case KEY_SPACE:
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83 animation_start(&animation);
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84 completed = animation_completed(&animation);
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85 break;
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86 default:
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87 break;
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88 }
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89 break;
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90 case EVENT_QUIT:
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91 return;
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92 default:
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93 break;
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94 }
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95 }
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96
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97 if (!completed)
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98 completed = animation_update(&animation, elapsed);
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99
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100 painter_set_color(0x4f8fbaff);
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101 painter_clear();
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102 label_draw(&label);
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103
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104 if (!completed)
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105 animation_draw(&animation, (window.w - sprite.cellw) / 2, (window.h - sprite.cellh) / 2);
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106
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107 painter_present();
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108
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109 if ((elapsed = clock_elapsed(&clock)) < 20)
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110 delay(20 - elapsed);
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111 }
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112 }
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113
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114 static void
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115 quit(void)
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116 {
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117 window_finish();
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118 ui_finish();
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119 core_finish();
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120 }
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121
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122 int
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123 main(int argc, char **argv)
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124 {
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125 (void)argc;
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126 (void)argv;
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127
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128 init();
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129 run();
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130 quit();
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131 }
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132