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comparison libadventure/adventure/mainmenu_state.c @ 121:789b23e01f52

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misc: reorganize hierarchy, closes #2490
author David Demelier <markand@malikania.fr>
date Mon, 05 Oct 2020 13:25:06 +0200
parents src/adventure/mainmenu_state.c@c7e993455985
children c679e08b32b2
comparison
equal deleted inserted replaced
120:b3429b26d60d 121:789b23e01f52
1 /*
2 * mainmenu_state.c -- game main menu
3 *
4 * Copyright (c) 2020 David Demelier <markand@malikania.fr>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #include <assert.h>
20 #include <stdlib.h>
21 #include <string.h>
22
23 #include <core/event.h>
24 #include <core/font.h>
25 #include <core/game.h>
26 #include <core/image.h>
27 #include <core/map_state.h>
28 #include <core/painter.h>
29 #include <core/panic.h>
30 #include <core/state.h>
31 #include <core/sys.h>
32 #include <core/texture.h>
33 #include <core/window.h>
34
35 #include "mainmenu_state.h"
36 #include "splashscreen_state.h"
37
38 #define SPEED 120
39 #define SEC 1000
40
41 enum substate {
42 SUBSTATE_MOVING,
43 SUBSTATE_WAITING
44 };
45
46 static int x;
47 static int y;
48 static unsigned int selection;
49 static int destination;
50 static enum substate substate;
51 static struct texture image;
52
53 /* Menu items. */
54 static struct {
55 struct texture texture;
56 int x;
57 int y;
58 } items[3];
59
60 static void
61 enter(void)
62 {
63 struct font font = { 0 };
64
65 if (!font_open(&font, sys_datapath("fonts/pirata-one.ttf"), 30))
66 panic();
67
68 substate = SUBSTATE_MOVING;
69 x = splashscreen_state_data.x;
70 y = splashscreen_state_data.y;
71 destination = window.h / 4;
72
73 /* TODO: change continue color if no game exists. */
74 font_render(&font, &items[0].texture, "New game");
75 items[0].x = (window.w / 2) - (items[0].texture.w / 2);
76 items[0].y = window.h * 0.75;
77
78 font_render(&font, &items[1].texture, "Continue");
79 items[1].x = items[0].x;
80 items[1].y = items[0].y + items[0].texture.h;
81
82 font_render(&font, &items[2].texture, "Quit");
83 items[2].x = items[0].x;
84 items[2].y = items[1].y + items[1].texture.h;
85
86 font_finish(&font);
87 }
88
89 static void
90 new(void)
91 {
92 /* TODO: convenient map_state_start function? */
93
94 /* Prepare map. */
95 if (!map_data_open(&map_state_data.map.data, sys_datapath("maps/test.map")))
96 panic();
97 if (!map_init(&map_state_data.map.map, &map_state_data.map.data))
98 panic();
99
100 /* Prepare image and sprite. */
101 if (!(image_open(&image, sys_datapath("sprites/test-walk.png"))))
102 panic();
103
104 sprite_init(&map_state_data.player.sprite, &image, 48, 48);
105 game_switch(&map_state, false);
106 }
107
108 static void
109 resume(void)
110 {
111 }
112
113 static void
114 quit(void)
115 {
116 game_quit();
117 }
118
119 static void
120 perform(void)
121 {
122 assert(selection < 3);
123
124 static void (*handlers[])(void) = {
125 [0] = new,
126 [1] = resume,
127 [2] = quit
128 };
129
130 handlers[selection]();
131 }
132
133 static void
134 handle(const union event *event)
135 {
136 if (substate != SUBSTATE_WAITING)
137 return;
138
139 switch (event->type) {
140 case EVENT_KEYDOWN:
141 switch (event->key.key) {
142 case KEY_UP:
143 selection = selection == 0 ? 2 : selection - 1;
144 break;
145 case KEY_DOWN:
146 selection = (selection + 1) % 3;
147 break;
148 case KEY_ENTER:
149 perform();
150 default:
151 break;
152 }
153 break;
154 default:
155 break;
156 }
157 }
158
159 static void
160 update(unsigned int ticks)
161 {
162 switch (substate) {
163 case SUBSTATE_MOVING:
164 y -= SPEED * ticks / SEC;
165
166 if (y <= destination) {
167 y = destination;
168 substate = SUBSTATE_WAITING;
169 }
170
171 break;
172 default:
173 break;
174 }
175 }
176
177 static void
178 draw(void)
179 {
180 painter_set_color(0xffffffff);
181 painter_clear();
182 texture_draw(&splashscreen_state_data.text, x, y);
183
184 if (substate == SUBSTATE_WAITING) {
185 texture_draw(&items[0].texture, items[0].x, items[0].y);
186 texture_draw(&items[1].texture, items[1].x, items[1].y);
187 texture_draw(&items[2].texture, items[2].x, items[2].y);
188
189 /* Selection cursor. */
190
191 /* TODO: a sword here. */
192 painter_set_color(0x000000ff);
193 painter_draw_rectangle(items[selection].x - 30,
194 items[selection].y + 11, 15, 15);
195 }
196 }
197
198 static void
199 leave(void)
200 {
201 texture_finish(&items[0].texture);
202 texture_finish(&items[1].texture);
203 memset(items, 0, sizeof (items));
204 }
205
206 struct state mainmenu_state = {
207 .enter = enter,
208 .handle = handle,
209 .update = update,
210 .draw = draw,
211 .leave = leave
212 };