public static double GetAngleBetweenPointsLineAndHorizontalLine(Vector2 point1, Vector2 point2)
{
Vector2 body1Origin = new Vector2(point1.X, point1.Y);
Vector2 body2Origin = new Vector2(point2.X, point2.Y);
MathLine originsLine = new MathLine(body1Origin, body2Origin);
return(originsLine.GetAcuteAngle());
}
public override bool ContainsLine(MathLine line)
{
double distance = line.GetDistanceFromPoint(GetOrigin().X, GetOrigin().Y);
if (distance <= Size.X / 2)
{
return(true);
}
return(false);
}
public Vector2 GetCrossPoint(MathLine line)
{
if (A - line.A == 0)
{
return(new Vector2());
}
double x = (line.B - B) / (A - line.A);
double y = A * x + B;
return(new Vector2(x, y));
}
bool isCrossPointOnVerticalSides(MathLine line)
{
double lineValueLeftSide = line.ValueAt(Position.X);
double lineValueRightSide = line.ValueAt(Position.X - Size.X);
if ((lineValueLeftSide <= Position.Y && lineValueLeftSide >= Position.Y - Size.Y) || (lineValueRightSide <= Position.Y && lineValueRightSide >= Position.Y - Size.Y))
{
return(true);
}
return(false);
}
bool isCrossPointOnHorizontalSides(MathLine line)
{
List <MathLine> horizontalLines = getHorizontalSidesLines();
List <Vector2> crossPoints = new List <Vector2>();
foreach (MathLine l in horizontalLines)
{
crossPoints.Add(l.GetCrossPoint(line));
}
foreach (Vector2 point in crossPoints)
{
if (point.X >= Position.X && point.X <= Position.X - Size.X)
{
return(true);
}
}
return(false);
}
public MathLine(MathLine line)
{
A = line.A;
B = line.B;
}
public override bool ContainsLine(MathLine line)
{
return(isCrossPointOnVerticalSides(line) || isCrossPointOnHorizontalSides(line));
}
public abstract bool ContainsLine(MathLine line);