Mirai's Miscellaneous Misadventures
M51 / chapters / loader / setup.c
1#include <stdlib.h>
5#include <mimimi-chapters.h>
7struct mimimi_loader_chapter_info
9{
10 char *name, *description;
11 void *(*start)(struct mimimi_engine *engine);
12 void (*tick)(void *chapter, unsigned char left, unsigned char right);
13};
14static struct mimimi_loader_chapter_info mimimi_loader_chapters[] =
16{
17 {
18 "test chapter", "This is a chapter to test the foundations of the game and its engine. It features the characters Mango and Pepper!",
19 &mimimi_test, &mimimi_test_tick,
20 },
21 {
22 "chapter I", "This is the first chapter of the game! It is currently still a work-in-progress, but strives to eventually come to tell a story.",
23 &mimimi_chapter_I, &mimimi_chapter_I_tick,
24 },
25};
26static void mimimi_loader_fill(struct mimimi_image *image, unsigned char color)
28{
29 int i;
30 for (i = 0 ; i < image->width * image->height ; i++)
31 image->colors[i] = color;
32}
33void mimimi_loader_tick(void *data, unsigned char left, unsigned char right)
35{
36 static int count = sizeof mimimi_loader_chapters / sizeof *mimimi_loader_chapters;
37
38 struct mimimi_loader *loader;
39 int i;
40 int x, y;
41 int width, height;
42
43 loader = data;
44
45 loader->engine->size.width = 512;
46 loader->engine->size.height = 256;
47
48 if (loader->started == 2)
49 {
50 (*mimimi_loader_chapters[loader->index].tick)(loader->chapter, left, right);
51 return;
52 }
53
54 if (left != 0 && right != 0)
55 loader->started = 1;
56
57 if (loader->started == 1)
58 {
59 if (left == 0 && right == 0)
60 {
61 (*loader->engine->invalidate)(loader->engine->data, loader->background);
62 for (i = 0 ; i < count ; i++)
63 (*loader->engine->invalidate)(loader->engine->data, loader->textures[i]);
64
65 loader->started = 2;
66 loader->chapter = (*mimimi_loader_chapters[loader->index].start)(loader->engine);
67 (*mimimi_loader_chapters[loader->index].tick)(loader->chapter, left, right);
68
69 return;
70 }
71 }
72 else
73 {
74 if (left == 0)
75 if (loader->previous_direction == -1)
76 if (loader->index > 0)
77 loader->index--;
78
79 if (right == 0)
80 if (loader->previous_direction == 1)
81 if (loader->index < count - 1)
82 loader->index++;
83
84 loader->previous_direction = 0;
85 if (left != 0) loader->previous_direction = -1;
86 if (right != 0) loader->previous_direction = 1;
87 }
88
89 width = loader->images[0].width;
90 height = loader->images[0].height;
91
92 loader->x *= 3;
93 loader->x += (width + 8) * loader->index;
94 loader->x /= 4;
95
96 (*loader->engine->stamp)(loader->engine->data, 0, 0, loader->background);
97 for (i = 0 ; i < count ; i++)
98 {
99 x = loader->engine->size.width / 2 - width / 2;
100 y = loader->engine->size.height / 2 - height / 2;
101 x += (width + 8) * i - loader->x;
102 (*loader->engine->stamp)(loader->engine->data, x, y, loader->textures[i]);
103 }
104}
105void *mimimi_loader(struct mimimi_engine *engine)
107{
108 static int count = sizeof mimimi_loader_chapters / sizeof *mimimi_loader_chapters;
109 static unsigned char background_colors[512 * 256];
110 static char title[] = "select chapter";
111 static char note[] = "press [left] and [right] at the same time to select";
112
113 struct mimimi_loader *loader;
114 int i;
115 unsigned char *colors;
116 struct mimimi_image *image;
117 struct mimimi_loader_chapter_info *info;
118 int y;
119 int width;
120
121 engine->size.width = 256;
122 engine->size.height = 128;
123
124 loader = malloc(sizeof *loader);
125 if (loader == NULL) exit(1);
126
127 loader->index = 0;
128 loader->started = 0;
129 loader->engine = engine;
130 loader->previous_direction = 0;
131 loader->x = 0;
132
133 loader->background_image.colors = background_colors;
134 loader->background_image.width = 512;
135 loader->background_image.height = 256;
136 mimimi_loader_fill(&loader->background_image, 0x16);
137
138 width = mimimi_measure_paragraph(mimimi_font, title);
139 mimimi_draw_paragraph(mimimi_font, title, &loader->background_image, loader->background_image.width / 2 - width / 2, 32, 0xD);
140
141 width = mimimi_measure_paragraph(mimimi_font, note);
142 mimimi_draw_paragraph(mimimi_font, note, &loader->background_image, loader->background_image.width / 2 - width / 2, loader->background_image.height - 32 - 16, 0xD);
143
144 loader->background = (*loader->engine->texture)(loader->engine->data, &loader->background_image);
145
146 colors = loader->colors;
147
148 for (i = 0 ; i < count ; i++)
149 {
150 info = mimimi_loader_chapters + i;
151 image = loader->images + i;
152 image->width = 192;
153 image->height = 96;
154 image->colors = colors;
155 colors += image->width * image->height;
156 mimimi_loader_fill(image, 0xD);
157 y = mimimi_draw_text(mimimi_font, info->name, 172, 18, image, 8, 2, 4);
158 mimimi_draw_text(mimimi_font, info->description, 172, 18, image, 8, y + 4, 4);
159 loader->textures[i] = (*engine->texture)(engine->data, image);
160 }
161
162 return loader;
163}