void keyboard(unsigned char key, int x, int y)
{
	switch(key)
	{
	case 'w': case 'W':
		w = true;
		Gerad.SetBack();
		Gerad.SetWalkStatus();
		break;
	case 's': case 'S':
		s = true;
		Gerad.SetFront();
		Gerad.SetWalkStatus();
		break;
	case 'a': case 'A':
		a = true;
		Gerad.SetLeft();
		Gerad.SetWalkStatus();
		break;
	case 'd': case 'D':
		d = true;
		Gerad.SetRight();
		Gerad.SetWalkStatus();
		break;
	case 'i': case 'I':
		InMenu = !InMenu;
		break;
	case 13:
		CheckNPC();
		break;
	case 27:
		exit(0);
		break;
	default:
		break;
	}
}
void SetBack()
{
	Gerad.SetBack();
}