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Delete menu.c

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JeffRuLz 2019-06-09 13:44:16 -05:00 committed by GitHub
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commit a1d9a74865
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src/menu.c
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#include "menu.h"
#include "main.h"
#include <nds.h>
#define SCREEN_ROWS 23
void clearMenu(Menu* m)
{
if (m == NULL) return;
m->numberOfItems = 0;
m->cursor = 0;
m->scrolly = 0;
}
static void _printMenuItem(Menu* m, int item)
{
if (item < 0 || item > m->numberOfItems) return;
iprintf(" %.30s", m->items[item].label);
}
void printMenu(Menu* m)
{
if (m == NULL) return;
swiWaitForVBlank();
clearScreen(&bottomScreen);
int i = m->scrolly;
while (i < m->scrolly + SCREEN_ROWS && i < m->numberOfItems)
{
_printMenuItem(m, i);
iprintf("\n");
i++;
}
//Cursor
iprintf("\x1b[%d;0H>", m->cursor - m->scrolly);
//Scroll arrows
if (m->scrolly > 0)
iprintf("\x1b[0;31H^");
if (m->scrolly < m->numberOfItems - SCREEN_ROWS)
iprintf("\x1b[22;31Hv");
}
int getMenuCursor(Menu* m)
{
if (m == NULL) return -1;
return m->cursor;
}
int getNumberOfMenuItems(Menu* m)
{
if (m == NULL) return -1;
return m->numberOfItems;
}
static void _moveCursor(Menu* m, int dir)
{
m->cursor += sign(dir);
if (m->cursor < 0)
m->cursor = 0;
if (m->cursor >= m->numberOfItems - 1)
m->cursor = m->numberOfItems - 1;
if (m->cursor - m->scrolly >= SCREEN_ROWS)
m->scrolly += 1;
if (m->cursor - m->scrolly < 0)
m->scrolly -= 1;
}
bool moveCursor(Menu* m)
{
if (m == NULL)
return false;
int lastCursor = m->cursor;
if (keysDown() & KEY_DOWN)
_moveCursor(m, 1);
if (keysDown() & KEY_UP)
_moveCursor(m, -1);
if (keysDown() & KEY_RIGHT)
{
repeat (10)
_moveCursor(m, 1);
}
if (keysDown() & KEY_LEFT)
{
repeat (10)
_moveCursor(m, -1);
}
return !(lastCursor == m->cursor);
}
void addMenuItem(Menu* m, char* label)
{
if (m == NULL) return;
if (label != NULL)
sprintf(m->items[m->numberOfItems].label, "%.32s", label);
m->numberOfItems += 1;
m->cursor = 0;
m->scrolly = 0;
}
//
void keyWait(u32 key)
{
while (1)
{
swiWaitForVBlank();
scanKeys();
if (keysDown() & key)
break;
}
}
bool choiceBox(char* message)
{
const int choiceRow = 10;
int cursor = 0;
clearScreen(&bottomScreen);
iprintf("%s\n", message);
iprintf("\x1b[%d;0H\tYes\n\tNo\n", choiceRow);
while (1)
{
swiWaitForVBlank();
scanKeys();
//Clear cursor
iprintf("\x1b[%d;0H ", choiceRow + cursor);
if (keysDown() & (KEY_UP | KEY_DOWN))
cursor = !cursor;
//Print cursor
iprintf("\x1b[%d;0H>", choiceRow + cursor);
if (keysDown() & (KEY_A | KEY_START))
break;
if (keysDown() & KEY_B)
{
cursor = 1;
break;
}
}
scanKeys();
return (cursor == 0)? YES: NO;
}
bool choicePrint(char* message)
{
bool choice = NO;
iprintf("\n%s\n", message);
iprintf("Yes - A\nNo - B\n");
while (1)
{
swiWaitForVBlank();
scanKeys();
if (keysDown() & KEY_A)
{
choice = YES;
break;
}
else if (keysDown() & KEY_B)
{
choice = NO;
break;
}
}
scanKeys();
return choice;
}
void messageBox(char* message)
{
clearScreen(&bottomScreen);
iprintf("%s\n", message);
iprintf("\nOkay - A\n");
while (1)
{
swiWaitForVBlank();
scanKeys();
if (keysDown() & (KEY_A | KEY_START))
break;
}
scanKeys();
}