Pattern: Add Wedge detection

[kenorb]

bool IsValidWedge(int startIndex, int totalBars, const double &high[], const double &low[], int direction)
{
    double trendlineSlope = (high[startIndex] - low[startIndex]) / 2;
    double prevSlope = 0;

    for (int i = startIndex; i > startIndex - totalBars; i--)
    {
        double slope = (high[i] - low[i]) / 2;

        if (direction * slope < 0)
            return false;

        if (direction * prevSlope > 0)
            return false;

        prevSlope = slope;

        if (MathAbs(slope) > MathAbs(trendlineSlope))
            return false;
    }

    return true;
}