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annotate libadventure/adventure/molko.c @ 229:e71039d820a7

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doc: improve documentation
author David Demelier <markand@malikania.fr>
date Thu, 19 Nov 2020 16:46:26 +0100
parents ddfe0a211169
children 76afe639fd72
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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197
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1 /*
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2 * molko.c -- main structure for Molko's Adventure
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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 <stddef.h>
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20 #include <setjmp.h>
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21
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22 #include <core/clock.h>
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23 #include <core/core.h>
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24 #include <core/event.h>
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25 #include <core/panic.h>
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26 #include <core/util.h>
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27 #include <core/window.h>
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28
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29 #include <ui/ui.h>
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30
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31 #include <rpg/rpg.h>
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32
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33 #include <adventure/state/panic.h>
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34 #include <adventure/state/splashscreen.h>
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35 #include <adventure/state/mainmenu.h>
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36
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37 #include "molko.h"
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38
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39 #define WINDOW_WIDTH 1280
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40 #define WINDOW_HEIGHT 720
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41
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42 static jmp_buf panic_buf;
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43
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44 struct molko molko;
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45
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46 static void
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47 crash(void)
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48 {
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49 longjmp(panic_buf, 1);
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50 }
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51
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52 static void
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53 loop(void)
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54 {
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55 struct clock clock = {0};
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56
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57 while (game.state) {
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58 unsigned int elapsed = clock_elapsed(&clock);
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59
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60 clock_start(&clock);
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61
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62 for (union event ev; event_poll(&ev); ) {
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63 switch (ev.type) {
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64 case EVENT_QUIT:
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65 return;
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66 default:
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67 game_handle(&ev);
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68 break;
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69 }
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70 }
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71
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72 game_update(elapsed);
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73 game_draw();
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74
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75 if ((elapsed = clock_elapsed(&clock)) < 20)
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76 delay(20 - elapsed);
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77 }
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78 }
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79
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80 void
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81 molko_init(void)
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82 {
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83 if (!core_init() || !ui_init() || !rpg_init())
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84 panic();
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85 if (!window_open("Molko's Adventure", WINDOW_WIDTH, WINDOW_HEIGHT))
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86 panic();
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87
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88 /*
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89 * From here, we can setup our panic state which requires a window
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90 * to be running.
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91 */
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92
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93 /* Init unrecoverable panic state. */
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94 panic_state(&molko.states[MOLKO_STATE_PANIC]);
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95 panic_handler = crash;
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96
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97 /* Init states. */
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98 splashscreen_state(&molko.states[MOLKO_STATE_SPLASH], &molko.states[MOLKO_STATE_MAINMENU]);
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99 mainmenu_state(&molko.states[MOLKO_STATE_MAINMENU]);
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100
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101 /* Start to splash. */
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102 game_switch(&molko.states[MOLKO_STATE_SPLASH], true);
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103 }
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104
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105 void
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106 molko_run(void)
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107 {
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108 if (setjmp(panic_buf) == 0) {
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109 /* Initial game run. */
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110 loop();
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111 } else {
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112 /* Clear event queue to avoid accidental key presses. */
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113 for (union event ev; event_poll(&ev); )
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114 continue;
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115
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116 game_switch(&molko.states[MOLKO_STATE_PANIC], true);
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117 loop();
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118 }
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119 }
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120
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121 void
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122 molko_finish(void)
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123 {
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124 for (size_t i = 0; i < MOLKO_STATE_NUM; ++i)
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125 state_finish(&molko.states[i]);
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126
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127 window_finish();
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128 rpg_finish();
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129 ui_finish();
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130 core_finish();
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131 }