/// <summary>
/// Adds "second" changing lamp sign to string builder.
/// </summary>
public void addSecondChangeLampRow(DateTime24 time, StringBuilder s)
{
bool isOn = IsLampOn(LampType.SecondChange, 1, time);
LampColor color = GetLampOnColor(LampType.SecondChange, 1);
addLamp(isOn, color, s);
s.AppendLine();
}
/// <summary>
/// Parses atomic time into three output parameters: hour, minute, second.
/// DateTime struct cannot be used, since hour is greater than 23 and not supported.
/// </summary>
public static bool tryParseExactATime(string aTime, out DateTime24 time)
{
time.Hour = time.Minute = time.Second = 0;
string[] partTimes = aTime.Split(':');
return partTimes.Length == 3 && partTimes[0].Length == 2 && partTimes[1].Length == 2 && partTimes[2].Length == 2
&& int.TryParse(partTimes[0], out time.Hour) && time.Hour >= 0 && time.Hour <= 24
&& int.TryParse(partTimes[1], out time.Minute) && time.Minute >= 0 && time.Minute < 60
&& int.TryParse(partTimes[2], out time.Second) && time.Second >= 0 && time.Second < 60
;
}
/// <summary>
/// Adds 5 minute group signs to string builder.
/// </summary>
private void addGroupedMinuteLampRow(DateTime24 time, StringBuilder s)
{
for (int i = 1; i <= 11; i++)
{
bool isOn = IsLampOn(LampType.GroupedMinute, i, time);
LampColor color = GetLampOnColor(LampType.GroupedMinute, i);
addLamp(isOn, color, s);
}
s.AppendLine();
}
/// <summary>
/// Adds remaining hour signs, that don't fit into hour groups, to string builder.
/// </summary>
private void addLeftHourLampRow(DateTime24 time, StringBuilder s)
{
for (int i = 1; i <= 4; i++)
{
bool isOn = IsLampOn(LampType.LeftHour, i, time);
LampColor color = GetLampOnColor(LampType.LeftHour, i);
addLamp(isOn, color, s);
}
s.AppendLine();
}
/// <summary>
/// At any moment of time, determines if the lamp, defined by the type and its position, is on.
/// </summary>
private bool IsLampOn(LampType type, int lampNo, DateTime24 time)
{
switch (type)
{
case LampType.SecondChange:
return time.Second % 2 == 0;
case LampType.GroupedHour:
return time.Hour / 5 >= lampNo;
case LampType.LeftHour:
return time.Hour % 5 >= lampNo;
case LampType.GroupedMinute:
return time.Minute / 5 >= lampNo;
case LampType.LeftMinute:
return time.Minute % 5 >= lampNo;
default:
throw new Exception("On functionality not implemented for lamp of type " + type);
}
}