private static float?ResponseAcrossLine(ProjectionLine line1, ProjectionLine line2)
{
if (line1.Start <= line2.Start && line1.End >= line2.Start) // use the >= operator
{
return(line2.Start - line1.End);
}
else if (line2.Start <= line1.Start && line2.End >= line1.Start) // use the >= operator
{
return(line2.End - line1.Start);
}
return(null);
}
private static ProjectionLine ProjectLine(Vector2[] points, Vector2 normal)
{
var projectionLine = new ProjectionLine()
{
Start = float.MaxValue, End = float.MinValue
};
foreach (var p in points)
{
var projectionScale = DotProduct(p, normal);
projectionLine.Start = Math.Min(projectionScale, projectionLine.Start);
projectionLine.End = Math.Max(projectionScale, projectionLine.End);
}
return(projectionLine);
}
