mirror of https://github.com/LemonBoy/grape.git
134 lines
3.2 KiB
C
134 lines
3.2 KiB
C
#include <nds.h>
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#include <stdio.h>
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#include "emu.h"
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typedef struct entry_t {
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const char *label;
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const int opts_no;
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const char *opts[10];
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int *opt_ptr;
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int confirm;
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int (*cb)(int);
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} entry_t;
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typedef struct page_t {
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const char *title;
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const int entries_no;
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const entry_t *entries;
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} page_t;
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static int opt_screen (const int sel)
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{
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emu_screen = sel;
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(sel) ? lcdMainOnBottom() : lcdMainOnTop();
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return 1;
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}
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static int opt_vsync (const int sel)
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{
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emu_vsync = sel;
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return 1;
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}
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static int opt_scale (const int sel)
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{
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emu_scale = sel;
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video_set_scale(emu_scale);
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return 1;
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}
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static int opt_input (const int sel)
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{
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emu_input = sel;
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return 1;
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}
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static int opt_exit (const int sel)
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{
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exit(0);
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return 1;
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}
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static int opt_hires (const int sel)
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{
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video_set_hires(sel);
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return 1;
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}
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static int sel_slot_l = 0, sel_slot_s = 0;
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const static struct page_t paused_pg = {
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"Paused", 8, (const entry_t []){
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{ "Vsync", 2, { "No", "Yes" }, &emu_vsync, 0, opt_vsync },
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{ "Scale", 2, { "No", "Yes" }, &emu_scale, 0, opt_scale },
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{ "Screen", 2, { "Top", "Bottom" }, &emu_screen, 0, opt_screen },
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{ "Hires mode", 3, { "B/W", "Old", "Color" }, &emu_hires, 0, opt_hires },
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{ "Map keys to", 2, { "joystick", "keyboard" }, &emu_input, 0, opt_input },
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{ "Save state", 9, { "1", "2", "3", "4", "5", "6", "7", "8", "9" }, &sel_slot_s, 1, state_save },
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{ "Load state", 9, { "1", "2", "3", "4", "5", "6", "7", "8", "9" }, &sel_slot_l, 1, state_load },
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{ "Exit", 0, { }, NULL, 1, opt_exit },
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}
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};
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void menu_print_page (const page_t *page)
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{
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int i, cur;
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u32 keys, keys_;
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cur = 0;
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while (1) {
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consoleClear();
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iprintf("-- %s\n\n", page->title);
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const entry_t *sel_entry = &page->entries[cur];
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for (i = 0; i < page->entries_no; i++) {
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const entry_t *entry = &page->entries[i];
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iprintf("%c %s %s\n", (i == cur) ? '>' : ' ', entry->label,
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(entry->opts_no) ? entry->opts[*entry->opt_ptr] : "");
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}
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scanKeys();
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keys = keysDown();
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keys_ = keysDownRepeat();
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if (keys_&KEY_UP) {
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cur--;
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if (cur < 0)
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cur = page->entries_no - 1;
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}
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if (keys_&KEY_DOWN) {
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cur++;
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if (cur == page->entries_no)
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cur = 0;
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}
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if (sel_entry->opts_no && (keys_&(KEY_LEFT|KEY_RIGHT))) {
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if (keys_&KEY_LEFT && *sel_entry->opt_ptr > 0)
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(*sel_entry->opt_ptr)--;
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if (keys_&KEY_RIGHT && *sel_entry->opt_ptr < sel_entry->opts_no - 1)
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(*sel_entry->opt_ptr)++;
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if (!sel_entry->confirm && sel_entry->cb)
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sel_entry->cb(*sel_entry->opt_ptr);
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}
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if (keys&KEY_A && sel_entry->cb) {
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sel_entry->cb(*sel_entry->opt_ptr);
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return;
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}
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if (keys&(KEY_B|KEY_START))
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return;
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swiWaitForVBlank();
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}
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}
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void print_msg (const char *msg)
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{
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iprintf("\n-- %s\n", msg);
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swiDelay(50000000);
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}
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void pause_menu () { menu_print_page(&paused_pg); }
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