//Returns true if "point" is in a rectangle mad up of RectA to RectD. The line point is assumed to be on the same
//plane as the rectangle. If the point is not on the plane, use ProjectPointOnPlane() first.
public static bool IsPointIn2DRectangle(Vector3 point, Vector3 rectA, Vector3 rectC, Vector3 rectB, Vector3 rectD)
{
Vector3 vector;
Vector3 linePoint;
//get the center of the rectangle
vector = rectC - rectA;
float size = -(vector.magnitude / 2f);
vector = ExtVector3.AddVectorLength(vector, size);
Vector3 middle = rectA + vector;
Vector3 xVector = rectB - rectA;
float width = xVector.magnitude / 2f;
Vector3 yVector = rectD - rectA;
float height = yVector.magnitude / 2f;
linePoint = ExtLine.ProjectPointOnLine(middle, xVector.normalized, point);
vector = linePoint - point;
float yDistance = vector.magnitude;
linePoint = ExtLine.ProjectPointOnLine(middle, yVector.normalized, point);
vector = linePoint - point;
float xDistance = vector.magnitude;
if ((xDistance <= width) && (yDistance <= height))
{
return(true);
}
else
{
return(false);
}
}
