public event DirectionChangedHandler?DirectionChanged; // 声明事件
protected virtual void OnDirectionChanged(DirectionChangedEventArgs e)
{
lock (privateLock)
{
if (DirectionChanged != null)
{
DirectionChanged(this, e); // 调用所有注册对象的方法
}
}
}
private void _directionService_OnDirectionChanged(DirectionChangedEventArgs e)
{
if (_directLastUpdated.HasValue && (DateTime.Now - _directLastUpdated.Value).Milliseconds <= 300)
{
return;
}
Direction = e.LastHeading;
_directLastUpdated = DateTime.Now;
Task.Run(() => _scavengerService.ChangeDirection(_scavengerId, Direction));
var degrees = (Direction < 0 ? Direction + 2 * Math.PI : Direction) * 180 / Math.PI;
CompassString = $"{degrees:N2}°";
BearingString = degrees <= 90 ? $"N{degrees:N}°E" :
degrees <= 180 ? $"S{180 - degrees:N}°E" :
degrees <= 270 ? $"S{degrees - 180:N}°W" :
$"N{360 - degrees:N}°W";
}
