public void show_flag(int x, int y, Button_states state)
{
// Flagge auf Feld anzeigen
switch (state)
{
case Button_states.opened:
// keine Flagge, da schon geoeffnet
break;
case Button_states.not_marked:
// keine Flagge
buttons[x, y].Text = "";
buttons[x, y].Image = null;
break;
case Button_states.marked:
// rote Flagge
buttons[x, y].Text = "";
buttons[x, y].Image = flag_img;
break;
case Button_states.maybe_marked:
// blaue Flagge
buttons[x, y].Text = "";
buttons[x, y].Image = flag_img2;
break;
default:
// sollte nicht erreicht werden
break;
}
}
public void open()
{
if (state == Button_states.not_marked)
{
state = Button_states.opened;
}
}
// Zustanduebergangsmethoden
public void mark()
{
switch (state)
{
case Button_states.opened:
break;
case Button_states.not_marked:
state = Button_states.marked;
break;
case Button_states.marked:
state = Button_states.maybe_marked;
break;
case Button_states.maybe_marked:
state = Button_states.not_marked;
break;
default:
// sollte nicht erreicht werden
break;
}
}