public bool GetCollisionPoint(Line3D ray, TriangleSelector selector, out Vector3D collisionPoint, out Triangle3D collisionTriangle)
{
float[] colp = new float[3];
float[] coltri = new float[9];
bool toR = SceneCollisionManager_GetCollisionPoint(_raw, ray.ToUnmanaged(), selector.Raw, colp, coltri);
collisionPoint = Vector3D.FromUnmanaged(colp);
collisionTriangle = Triangle3D.FromUnmanaged(coltri);
return toR;
}
public SceneNode GetSceneNodeFromRay(Line3D ray)
{
return GetSceneNodeFromRay(ray, 0, false);
}
public SceneNode GetSceneNodeFromRay(Line3D ray, int bitMask, bool noDebug)
{
return (SceneNode)
NativeElement.GetObject(SceneCollisionManager_GetSceneNodeFromRayBB(_raw, ray.ToUnmanaged(), bitMask, noDebug),
typeof(SceneNode));
}
/// <summary>
/// Checks an intersection with some line
/// </summary>
/// <param name="lineToCol">
/// A line to be checked <see cref="Line3D"/>
/// </param>
/// <returns>
/// A result of the collision <see cref="System.Boolean"/>
/// </returns>
public bool IntersectsWithLimitedLine(Line3D lineToCol)
{
Vector3D lineVector = lineToCol.Vector.Normalize();
float halfLength = (float)(lineToCol.Length * 0.5);
Vector3D t = Center - lineToCol.Middle;
Vector3D e = (MaxEdge - MinEdge); e = e * (float)(0.5);
if ((Math.Abs(t.X) > e.X + halfLength * Math.Abs(lineVector.X)) ||
(Math.Abs(t.Y) > e.Y + halfLength * Math.Abs(lineVector.Y)) ||
(Math.Abs(t.Z) > e.Z + halfLength * Math.Abs(lineVector.Z)))
return false;
float r = e.Y * Math.Abs(lineVector.Z) + e.Z * Math.Abs(lineVector.Y);
if (Math.Abs(t.Y * lineVector.Z - t.Z * lineVector.Y) > r)
return false;
r = e.X * Math.Abs(lineVector.Z) + e.Z * Math.Abs(lineVector.X);
if (Math.Abs(t.Z * lineVector.X - t.X * lineVector.Z) > r)
return false;
r = e.X * Math.Abs(lineVector.Y) + e.Y * Math.Abs(lineVector.X);
if (Math.Abs(t.X * lineVector.Y - t.Y * lineVector.X) > r)
return false;
return true;
}
public void Draw3DLine(Line3D line, Color color)
{
Draw3DLine(line.Start, line.End, color);
}
public static Line3D From(float xMin, float yMin, float zMin, float xMax, float yMax, float zMax)
{
Line3D line = new Line3D();
line.Start = new Vector3D();
line.End = new Vector3D();
line.Start.Set(xMin, yMin, zMin);
line.End.Set(xMax, yMax, zMax);
return line;
}
