momento/src/mainmenu/update.c

/* SPDX-License-Identifier: GPL-3.0-or-later */
/* Copyright (C) 2021 KikooDX */

#include "filepaths.h"
#include "input.h"
#include "mainmenu.h"
#include <gint/keyboard.h>

/* Return 1 if game state should change. */
int
mainmenu_update(struct MainMenu *mainmenu, struct Input input)
{
	/* decrease selected pack id */
	if (input.keystates[K_UP] == KS_PRESS ||
	    input.keystates[K_LEFT] == KS_PRESS) {
		if (mainmenu->cursor > 0)
			mainmenu->cursor -= 1;
		else
			mainmenu->cursor = MENU_ENTRIES - 1;
	}
	/* increase selected pack id */
	if (input.keystates[K_DOWN] == KS_PRESS ||
	    input.keystates[K_RIGHT] == KS_PRESS) {
		if (mainmenu->cursor < MENU_ENTRIES - 1)
			mainmenu->cursor += 1;
		else
			mainmenu->cursor = 0;
	}
	/* confirm */
	if (input.keystates[K_A] == KS_PRESS)
		return 1;

	return 0;
}