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#include "common.h"
#include "background.h"
#define BG_FUNC_MAX 5
static bg_func func_tab[BG_FUNC_MAX];
static int_fast8_t fcount;
int bg_register(bg_func f)
{
if (fcount < BG_FUNC_MAX) {
func_tab[fcount++] = f;
return 1;
}
return 0;
}
void bg_shed(void)
{
static int_fast8_t current;
if (func_tab[current]) {
func_tab[current](0);
}
if (++current >= fcount)
current = 0;
}
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