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annotate src/adventure/mainmenu_state.c @ 80:05ffbcdee585

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adventure: create main menu, closes #2482 @4h
author David Demelier <markand@malikania.fr>
date Sat, 15 Feb 2020 12:38:25 +0100
parents
children ed72843a7194
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80
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1 /*
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2 * mainmenu_state.c -- game main menu
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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 <error.h>
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24 #include <event.h>
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25 #include <font.h>
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26 #include <game.h>
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27 #include <image.h>
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28 #include <map_state.h>
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29 #include <painter.h>
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30 #include <state.h>
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31 #include <sys.h>
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32 #include <texture.h>
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33 #include <window.h>
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34
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35 #include "mainmenu_state.h"
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36 #include "splashscreen_state.h"
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37
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38 #define SPEED 120
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39 #define SEC 1000
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40
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41 enum substate {
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42 SUBSTATE_MOVING,
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43 SUBSTATE_WAITING
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44 };
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45
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46 static int x;
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47 static int y;
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48 static unsigned int selection;
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49 static int destination;
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50 static enum substate substate;
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51
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52 /* Menu items. */
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53 static struct {
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54 struct texture *texture;
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55 int x;
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56 int y;
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57 } items[3];
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58
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59 static void
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60 enter(void)
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61 {
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62 struct font *font = font_openf(sys_datapath("fonts/pirata-one.ttf"), 30);
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63
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64 if (!font)
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65 error_fatal();
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66
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67 substate = SUBSTATE_MOVING;
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68 x = splashscreen_state_data.x;
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69 y = splashscreen_state_data.y;
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70 destination = window_height() / 4;
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71
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72 /* TODO: change continue color if no game exists. */
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73 items[0].texture = font_render(font, "New game", 0x000000ff);
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74 items[0].x = (window_width() / 2) - (texture_width(items[0].texture) / 2);
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75 items[0].y = window_height() * 0.75;
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76
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77 items[1].texture = font_render(font, "Continue", 0x000000ff);
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78 items[1].x = items[0].x;
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79 items[1].y = items[0].y + texture_height(items[0].texture);
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80
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81 items[2].texture = font_render(font, "Quit", 0x000000ff);
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82 items[2].x = items[0].x;
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83 items[2].y = items[1].y + texture_height(items[1].texture);
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84 }
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85
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86 static void
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87 new(void)
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88 {
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89 struct map map;
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90 struct texture *image;
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91
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92 /* Prepare map. */
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93 if (!map_open(&map, sys_datapath("maps/test.map")))
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94 error_fatal();
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95
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96 memcpy(&map_state_data.map.map, &map, sizeof (map));
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97
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98 /* Prepare image and sprite. */
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99 if (!(image = image_openf(sys_datapath("sprites/test-walk.png"))))
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100 error_fatal();
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101
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102 sprite_init(&map_state_data.player.sprite, image, 48, 48);
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103 game_switch(&map_state, false);
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104 }
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105
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106 static void
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107 resume(void)
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108 {
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109 }
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110
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111 static void
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112 quit(void)
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113 {
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114 game_quit();
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115 }
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116
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117 static void
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118 perform(void)
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119 {
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120 assert(selection < 3);
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121
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122 static void (*handlers[])(void) = {
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123 [0] = new,
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124 [1] = resume,
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125 [2] = quit
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126 };
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127
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128 handlers[selection]();
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129 }
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130
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131 static void
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132 handle(const union event *event)
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133 {
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134 if (substate != SUBSTATE_WAITING)
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135 return;
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136
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137 switch (event->type) {
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138 case EVENT_KEYDOWN:
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139 switch (event->key.key) {
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140 case KEY_UP:
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141 selection = selection == 0 ? 2 : selection - 1;
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142 break;
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143 case KEY_DOWN:
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144 selection = (selection + 1) % 3;
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145 break;
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146 case KEY_ENTER:
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147 perform();
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148 default:
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David Demelier <markand@malikania.fr>
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149 break;
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David Demelier <markand@malikania.fr>
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150 }
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
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151 break;
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
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152 default:
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
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153 break;
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
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154 }
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David Demelier <markand@malikania.fr>
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155 }
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David Demelier <markand@malikania.fr>
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156
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David Demelier <markand@malikania.fr>
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157 static void
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David Demelier <markand@malikania.fr>
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158 update(unsigned int ticks)
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David Demelier <markand@malikania.fr>
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159 {
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David Demelier <markand@malikania.fr>
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160 switch (substate) {
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David Demelier <markand@malikania.fr>
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161 case SUBSTATE_MOVING:
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David Demelier <markand@malikania.fr>
parents:
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162 y -= SPEED * ticks / SEC;
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David Demelier <markand@malikania.fr>
parents:
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163
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David Demelier <markand@malikania.fr>
parents:
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164 if (y <= destination) {
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David Demelier <markand@malikania.fr>
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165 y = destination;
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David Demelier <markand@malikania.fr>
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166 substate = SUBSTATE_WAITING;
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David Demelier <markand@malikania.fr>
parents:
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167 }
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David Demelier <markand@malikania.fr>
parents:
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168
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
parents:
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169 break;
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
parents:
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170 default:
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
parents:
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171 break;
05ffbcdee585 adventure: create main menu, closes #2482 @4h
David Demelier <markand@malikania.fr>
parents:
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172 }
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David Demelier <markand@malikania.fr>
parents:
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173 }
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David Demelier <markand@malikania.fr>
parents:
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174
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David Demelier <markand@malikania.fr>
parents:
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175 static void
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David Demelier <markand@malikania.fr>
parents:
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176 draw(void)
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David Demelier <markand@malikania.fr>
parents:
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177 {
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David Demelier <markand@malikania.fr>
parents:
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178 painter_set_color(0xffffffff);
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David Demelier <markand@malikania.fr>
parents:
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179 painter_clear();
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David Demelier <markand@malikania.fr>
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180 texture_draw(splashscreen_state_data.text, x, y);
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David Demelier <markand@malikania.fr>
parents:
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181
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David Demelier <markand@malikania.fr>
parents:
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182 if (substate == SUBSTATE_WAITING) {
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David Demelier <markand@malikania.fr>
parents:
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183 texture_draw(items[0].texture, items[0].x, items[0].y);
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David Demelier <markand@malikania.fr>
parents:
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184 texture_draw(items[1].texture, items[1].x, items[1].y);
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David Demelier <markand@malikania.fr>
parents:
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185 texture_draw(items[2].texture, items[2].x, items[2].y);
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David Demelier <markand@malikania.fr>
parents:
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186
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David Demelier <markand@malikania.fr>
parents:
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187 /* Selection cursor. */
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David Demelier <markand@malikania.fr>
parents:
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188
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David Demelier <markand@malikania.fr>
parents:
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189 /* TODO: a sword here. */
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David Demelier <markand@malikania.fr>
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190 painter_set_color(0x000000ff);
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David Demelier <markand@malikania.fr>
parents:
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191 painter_draw_rectangle(true, items[selection].x - 30,
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David Demelier <markand@malikania.fr>
parents:
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192 items[selection].y + 11, 15, 15);
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David Demelier <markand@malikania.fr>
parents:
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193 }
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David Demelier <markand@malikania.fr>
parents:
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194 }
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David Demelier <markand@malikania.fr>
parents:
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195
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David Demelier <markand@malikania.fr>
parents:
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196 static void
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David Demelier <markand@malikania.fr>
parents:
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197 leave(void)
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David Demelier <markand@malikania.fr>
parents:
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198 {
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David Demelier <markand@malikania.fr>
parents:
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199 texture_close(items[0].texture);
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David Demelier <markand@malikania.fr>
parents:
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200 texture_close(items[1].texture);
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David Demelier <markand@malikania.fr>
parents:
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201 memset(items, 0, sizeof (items));
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David Demelier <markand@malikania.fr>
parents:
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202 }
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David Demelier <markand@malikania.fr>
parents:
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203
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David Demelier <markand@malikania.fr>
parents:
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204 struct state mainmenu_state = {
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David Demelier <markand@malikania.fr>
parents:
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205 .enter = enter,
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David Demelier <markand@malikania.fr>
parents:
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206 .handle = handle,
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David Demelier <markand@malikania.fr>
parents:
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207 .update = update,
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David Demelier <markand@malikania.fr>
parents:
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208 .draw = draw,
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David Demelier <markand@malikania.fr>
parents:
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209 .leave = leave
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David Demelier <markand@malikania.fr>
parents:
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210 };