public ExtPlane3d(Vector3 position, Vector3 normal) : this()
{
_position = position;
_rotation = ExtRotation.QuaternionFromVectorDirector(normal, Vector3.up);
_rotation = ExtRotation.RotateQuaternion(_rotation, new Vector3(-90, 0, 0));
UpdateMatrix();
}
/// 2 ------2------ 3
/// 1 | 3 |
/// 1 ------4----- 4 |
/// | | 3 | |
/// | 4| | 2 |
/// | 1 |
/// | |
///
public ExtQuad(Vector3 p1, Vector3 p2, Vector3 p3, Vector3 p4) : this()
{
_position = ExtVector3.GetMeanOfXPoints(p1, p2, p3, p4);
Vector3 x = p1 - p2;
Vector3 y = p1 - p4;
Vector3 up = Vector3.Cross(x, y);
_rotation = ExtRotation.QuaternionFromVectorDirector(up, x.FastNormalized());
_rotation = ExtRotation.RotateQuaternion(_rotation, new Vector3(-90, 0, 0));
_localScale = new Vector3(y.magnitude, 1, x.magnitude);
UpdateMatrix();
}
public ExtCylinder(Vector3 p1, Vector3 p2, float radius = 0.25f) : this()
{
_position = ExtVector3.GetMeanOfXPoints(p1, p2);
_rotation = ExtQuaternion.QuaternionFromLine(p1, p2, Vector3.up);
_rotation = ExtRotation.RotateQuaternion(_rotation, new Vector3(90, 0, 0));
_localScale = new Vector3(1, 1, 1);
_cylinderMatrix = Matrix4x4.TRS(_position, _rotation, _localScale * 1);
//why radius a 0.25, and lenght * 0.8 ?? I don't know,
//it's there to match the first constructor(position, rotation, scale)
_radius = radius;
_lenght = ExtVector3.Distance(p2, p1) * 0.8f;
_lenghtSquared = _lenght * _lenght;
_radiusSquared = _radius * _radius;
_realRadius = _radius * MaxXY(_localScale);
_realSquaredRadius = _realRadius * _realRadius;
UpdateMatrix();
}