/// <summary>
/// Whether the candle is bullish or bearish.
/// </summary>
/// <param name="candle">The candle which should be checked for the trend.</param>
/// <returns><see langword="true" /> if bullish, <see langword="false" />, if bearish, <see langword="null" /> - neither one nor the other.</returns>
public static bool?IsBullishOrBearish(this Candle candle)
{
if (candle == null)
{
throw new ArgumentNullException(nameof(candle));
}
var isWhiteOrBlack = candle.IsWhiteOrBlack();
switch (isWhiteOrBlack)
{
case true:
if (candle.GetBottomShadow() >= candle.GetBody())
{
return(true);
}
break;
case false:
if (candle.GetTopShadow() >= candle.GetBody())
{
return(true);
}
break;
}
return(null);
}
/// <summary>
/// Whether the candle is dragonfly or tombstone.
/// </summary>
/// <param name="candle">The candle which should match the pattern.</param>
/// <returns><see langword="true" /> if the dragonfly, <see langword="false" /> if the tombstone, <see langword="null" /> - neither one nor the other.</returns>
public static bool?IsDragonflyOrGravestone(this Candle candle)
{
if (candle.IsWhiteOrBlack() == null)
{
if (candle.GetTopShadow() == 0)
{
return(true);
}
else if (candle.GetBottomShadow() == 0)
{
return(false);
}
}
return(null);
}
/// <summary>
/// Whether the candle is hammer.
/// </summary>
/// <param name="candle">The candle which should match the pattern.</param>
/// <returns><see langword="true" /> if it is matched, <see langword="false" /> if not.</returns>
public static bool IsHammer(this Candle candle)
{
return(!candle.IsMarubozu() && (candle.GetBottomShadow() == 0 || candle.GetTopShadow() == 0));
}
/// <summary>
/// Whether the candle is neutral to trades.
/// </summary>
/// <param name="candle">The candle for which you need to calculate whether it is neutral.</param>
/// <returns><see langword="true" /> if the candle is neutral, <see langword="false" /> if it is not neutral.</returns>
/// <remarks>
/// The neutrality is defined as a situation when during the candle neither buyers nor sellers have not created a trend.
/// </remarks>
public static bool IsSpinningTop(this Candle candle)
{
return(!candle.IsMarubozu() && (candle.GetBottomShadow() == candle.GetTopShadow()));
}
