private void DrawCrossBar(bool[] digitToBarPresence, LCDState nextState)
{
Write(digitToBarPresence[_digits[_charIndex]] ? _crossBar : _crossBarBlank);
_charIndex++;
_state = _charIndex == _digits.Length ? LCDState.EOL : LCDState.Between;
_nextState = nextState;
}
private void DrawVBar(bool[] digitToBarPresence, LCDState nextState)
{
var onLeft = (_state == LCDState.BL || _state == LCDState.TL);
Write(digitToBarPresence[_digits[_charIndex]] ? "|" : Space);
_state = onLeft
? LCDState.Blank
: (++_charIndex == _digits.Length ? LCDState.EOL : LCDState.Between);
_nextState = nextState;
}
internal void AppendLCD()
{
while (_state != LCDState.Ended)
{
switch (_state)
{
case LCDState.Starting:
_state = LCDState.Top;
break;
case LCDState.Top:
DrawCrossBar(_topBars, LCDState.Top);
break;
case LCDState.Middle:
DrawCrossBar(_midBars, LCDState.Middle);
break;
case LCDState.Bottom:
DrawCrossBar(_botBars, LCDState.Bottom);
break;
case LCDState.Between:
Write(Space);
_state = _nextState;
break;
case LCDState.Blank:
Write(_internalBlank);
_state = _nextState;
break;
case LCDState.TL:
DrawVBar(_tlBars, LCDState.TR);
break;
case LCDState.TR:
DrawVBar(_trBars, LCDState.TL);
break;
case LCDState.BL:
DrawVBar(_blBars, LCDState.BR);
break;
case LCDState.BR:
DrawVBar(_brBars, LCDState.BL);
break;
case LCDState.EOL:
WriteLine();
if (_row == 0)
{
_state = LCDState.TL;
}
else if (_row == _size)
{
_state = LCDState.Middle;
}
else if (_row == _size + 1)
{
_state = LCDState.BL;
}
else if (_row == 2 * _size + 1)
{
_state = LCDState.Bottom;
}
else if (_row == 2 * _size + 2)
{
_state = LCDState.Ended;
}
else
{
_state = _nextState;
}
_row++;
_charIndex = 0;
break;
}
}
}