public void TestFullConstructor() {
LineContacts contacts = new LineContacts(12.34f, 56.78f);
Assert.IsTrue(contacts.HasContact);
Assert.AreEqual(12.34f, contacts.EntryTime);
Assert.AreEqual(56.78f, contacts.ExitTime);
}
public void TestSingleContactConstructor() {
LineContacts contacts = new LineContacts(123.456f);
Assert.IsTrue(contacts.HasContact);
Assert.AreEqual(123.456f, contacts.EntryTime);
Assert.AreEqual(123.456f, contacts.ExitTime);
}
public void TestGetHashCode()
{
LineContacts contacts1 = new LineContacts(12.34f, 56.78f);
LineContacts contacts2 = new LineContacts(12.34f, 56.78f);
Assert.AreEqual(contacts1.GetHashCode(), contacts2.GetHashCode());
}
/// <summary>
/// Limits the contact positions found in a line to the subsection of
/// the line covered by the line segment
/// </summary>
/// <param name="contacts">Contacts that will be limited to the line segment</param>
private static void limitContactToLineSegment(ref LineContacts contacts)
{
if (!float.IsNaN(contacts.EntryTime))
{
bool contactLiesOutsideOfSegment =
(contacts.EntryTime > 1.0f) ||
(contacts.ExitTime < 0.0f);
if (contactLiesOutsideOfSegment)
{
contacts.EntryTime = float.NaN;
contacts.ExitTime = float.NaN;
}
else
{
if (contacts.EntryTime < 0.0f)
{
contacts.EntryTime = 0.0f;
}
if (contacts.ExitTime > 1.0f)
{
contacts.ExitTime = 1.0f;
}
}
}
}
public void TestEqualityComparison() {
LineContacts contacts = new LineContacts(12.34f, 56.78f);
LineContacts identical = new LineContacts(12.34f, 56.78f);
LineContacts different = new LineContacts(56.78f, 12.34f);
Assert.IsTrue(contacts.Equals(identical));
Assert.IsFalse(contacts.Equals(different));
}
public void TestSingleContactConstructor()
{
LineContacts contacts = new LineContacts(123.456f);
Assert.IsTrue(contacts.HasContact);
Assert.AreEqual(123.456f, contacts.EntryTime);
Assert.AreEqual(123.456f, contacts.ExitTime);
}
public void TestFullConstructor()
{
LineContacts contacts = new LineContacts(12.34f, 56.78f);
Assert.IsTrue(contacts.HasContact);
Assert.AreEqual(12.34f, contacts.EntryTime);
Assert.AreEqual(56.78f, contacts.ExitTime);
}
/// <summary>Determines where the range clips a triangle</summary>
/// <param name="triangle">Triangle that will be checked for intersection</param>
/// <returns>The times at which the range touches the triangle, if at all</returns>
public LineContacts FindContacts(Triangle3 triangle)
{
LineContacts contacts = Collisions.Line3Triangle3Collider.FindContacts(
Origin, Direction, triangle.A, triangle.B, triangle.C
);
limitContactToRay(ref contacts);
return(contacts);
}
public void TestEqualityComparison()
{
LineContacts contacts = new LineContacts(12.34f, 56.78f);
LineContacts identical = new LineContacts(12.34f, 56.78f);
LineContacts different = new LineContacts(56.78f, 12.34f);
Assert.IsTrue(contacts.Equals(identical));
Assert.IsFalse(contacts.Equals(different));
}
/// <summary>Determines where the range clips a plane</summary>
/// <param name="plane">Plane that will be checked for intersection</param>
/// <returns>The times at which the range touches the plane, if at all</returns>
public LineContacts FindContacts(Plane3 plane)
{
LineContacts contacts = Collisions.Line3Plane3Collider.FindContacts(
Origin, Direction, plane.Offset, plane.Normal
);
limitContactToRay(ref contacts);
return(contacts);
}
/// <summary>Determines where the range clips a plane</summary>
/// <param name="plane">Plane that will be checked for intersection</param>
/// <returns>The times at which the range touches the plane, if at all</returns>
public LineContacts FindContacts(Plane3 plane)
{
LineContacts contacts = Collisions.Line3Plane3Collider.FindContacts(
Start, End - Start, plane.Offset, plane.Normal
);
limitContactToLineSegment(ref contacts);
return(contacts);
}
/// <summary>Determines where the range clips a triangle</summary>
/// <param name="triangle">Triangle that will be checked for intersection</param>
/// <returns>The times at which the range touches the triangle, if at all</returns>
public LineContacts FindContacts(Triangle3 triangle)
{
LineContacts contacts = Collisions.Line3Triangle3Collider.FindContacts(
Start, End - Start, triangle.A, triangle.B, triangle.C
);
limitContactToLineSegment(ref contacts);
return(contacts);
}
/// <summary>
/// Determines whether this instance is identical to another instance
/// </summary>
/// <param name="otherObject">Other instance of compare against</param>
/// <returns>True if both instances are identical</returns>
public override bool Equals(object otherObject)
{
if (!(otherObject is LineContacts))
{
return(false);
}
LineContacts other = (LineContacts)otherObject;
return
((this.EntryTime == other.EntryTime) &&
(this.ExitTime == other.ExitTime));
}
/// <summary>
/// Limits the contact positions found in a line to the subsection of
/// the line covered by the line segment
/// </summary>
/// <param name="contacts">Contacts that will be limited to the line segment</param>
private static void limitContactToRay(ref LineContacts contacts)
{
if (!float.IsNaN(contacts.EntryTime))
{
bool contactLiesOutsideOfRay =
(contacts.ExitTime < 0.0f);
if (contactLiesOutsideOfRay)
{
contacts.EntryTime = float.NaN;
contacts.ExitTime = float.NaN;
}
else
{
if (contacts.EntryTime < 0.0f)
{
contacts.EntryTime = 0.0f;
}
}
}
}
/// <summary>
/// Limits the contact positions found in a line to the subsection of
/// the line covered by the line segment
/// </summary>
/// <param name="contacts">Contacts that will be limited to the line segment</param>
private static void limitContactToLineSegment(ref LineContacts contacts) {
if(!float.IsNaN(contacts.EntryTime)) {
bool contactLiesOutsideOfSegment =
(contacts.EntryTime > 1.0f) ||
(contacts.ExitTime < 0.0f);
if(contactLiesOutsideOfSegment) {
contacts.EntryTime = float.NaN;
contacts.ExitTime = float.NaN;
} else {
if(contacts.EntryTime < 0.0f) {
contacts.EntryTime = 0.0f;
}
if(contacts.ExitTime > 1.0f) {
contacts.ExitTime = 1.0f;
}
}
}
}
public void TestGetHashCode() {
LineContacts contacts1 = new LineContacts(12.34f, 56.78f);
LineContacts contacts2 = new LineContacts(12.34f, 56.78f);
Assert.AreEqual(contacts1.GetHashCode(), contacts2.GetHashCode());
}
/// <summary>
/// Limits the contact positions found in a line to the subsection of
/// the line covered by the line segment
/// </summary>
/// <param name="contacts">Contacts that will be limited to the line segment</param>
private static void limitContactToRay(ref LineContacts contacts) {
if(!float.IsNaN(contacts.EntryTime)) {
bool contactLiesOutsideOfRay =
(contacts.ExitTime < 0.0f);
if(contactLiesOutsideOfRay) {
contacts.EntryTime = float.NaN;
contacts.ExitTime = float.NaN;
} else {
if(contacts.EntryTime < 0.0f) {
contacts.EntryTime = 0.0f;
}
}
}
}
