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#include "project.h"
static uint8_t code[16];
static int code_len;
static int hide;
static int show;
void
code_display (void)
{
size_t i;
#if 1
lcd_erase_line (0, 16);
if (code_len != 16)
lcd_write ("Enter code:", 0, 0);
else
lcd_write ("Code entered:", 0, 0);
#endif
for (i = 0; i < sizeof (code); ++i)
lcd_write_char (hide ? '*' : (code[i] ? code[i] : ' '), i, 1);
lcd_backlight (!hide);
}
void
code_tick (void)
{
if (!show)
return;
show--;
if (!show)
{
hide++;
code_display ();
}
}
void
key_event (uint8_t v, int ud)
{
if (!ud)
return;
if (code_len == sizeof (code))
{
code_len = 0;
memset (code, ' ', sizeof (code));
}
show = 5000;
hide = 0;
code[code_len++] = v;
code_display ();
}
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