public static float AngleSigned(CCPoint a, CCPoint b)
{
CCPoint a2 = Normalize(a);
CCPoint b2 = Normalize(b);
float angle = (float)Math.Atan2(a2.x * b2.y - a2.y * b2.x, a2.Dot(b2));
if (Math.Abs(angle) < ccMacros.FLT_EPSILON)
{
return(0f);
}
return(angle);
}
/// <summary>
/// Returns the projection of this over v2.
/// </summary>
/// <param name="v2"></param>
/// <returns></returns>
public CCPoint Project(CCPoint v2)
{
return v2.Mult(Dot(v2) / v2.Dot(v2));
}
/// <summary>
/// Returns the projection of this over v2.
/// </summary>
/// <param name="v2"></param>
/// <returns></returns>
public CCPoint Project(CCPoint v2)
{
return(v2.Mult(Dot(v2) / v2.Dot(v2)));
}
public static float AngleSigned(CCPoint a, CCPoint b)
{
CCPoint cCPoint = CCPoint.Normalize(a);
CCPoint cCPoint1 = CCPoint.Normalize(b);
float single = (float)Math.Atan2((double)(cCPoint.x * cCPoint1.y - cCPoint.y * cCPoint1.x), (double)cCPoint.Dot(cCPoint1));
if (Math.Abs(single) < ccMacros.FLT_EPSILON)
{
return(0f);
}
return(single);
}
