private void ButtonPressed(int i)
{
var index = i;
if (_firstButtonPressed)
{
var termAlreadyPressed = Buttons[_firstButtonPressedIndex];
if (index == _firstButtonPressedIndex)
{
termAlreadyPressed.Pressed();
_firstButtonPressedIndex = -1;
_firstButtonPressed = !_firstButtonPressed;
return;
}
var termJustPressed = Buttons[index];
termJustPressed.Pressed();
if (termJustPressed.CheckForCorrectAnswer(termAlreadyPressed))
{
_firstButtonPressed = false;
Buttons[index] = null;
Buttons[_firstButtonPressedIndex] = null;
PositionsAtPlay.Remove(index);
PositionsAtPlay.Remove(_firstButtonPressedIndex);
IsGameOver();
}
else
{
// todo
_errors += 1;
}
_firstButtonPressed = false;
_firstButtonPressedIndex = -1;
}
else
{
if (!PositionsAtPlay.Contains(index))
{
return;
}
var termJustPressed = Buttons[index];
if (termJustPressed == null)
{
return;
}
termJustPressed.Pressed();
_firstButtonPressed = true;
_firstButtonPressedIndex = index;
}
}
