public bool Intersects(OBB3DBehaviour other)
{
OBB3D a = new OBB3D(transform, center, size);
OBB3D b = new OBB3D(other.transform, other.center, other.size);
return(a.Intersects(b));
}
bool ProjectionIsNotIntersect(OBB3D x, OBB3D y, Vector3 axis)
{
var x_p0 = GetSignProjectValue(x.P0, axis);
var x_p1 = GetSignProjectValue(x.P1, axis);
var x_p2 = GetSignProjectValue(x.P2, axis);
var x_p3 = GetSignProjectValue(x.P3, axis);
var x_p4 = GetSignProjectValue(x.P4, axis);
var x_p5 = GetSignProjectValue(x.P5, axis);
var x_p6 = GetSignProjectValue(x.P6, axis);
var x_p7 = GetSignProjectValue(x.P7, axis);
var y_p0 = GetSignProjectValue(y.P0, axis);
var y_p1 = GetSignProjectValue(y.P1, axis);
var y_p2 = GetSignProjectValue(y.P2, axis);
var y_p3 = GetSignProjectValue(y.P3, axis);
var y_p4 = GetSignProjectValue(y.P4, axis);
var y_p5 = GetSignProjectValue(y.P5, axis);
var y_p6 = GetSignProjectValue(y.P6, axis);
var y_p7 = GetSignProjectValue(y.P7, axis);
var xMin = Mathf.Min(x_p0, Mathf.Min(x_p1, Mathf.Min(x_p2, Mathf.Min(x_p3, Mathf.Min(x_p4, Mathf.Min(x_p5, Mathf.Min(x_p6, x_p7)))))));
var xMax = Mathf.Max(x_p0, Mathf.Max(x_p1, Mathf.Max(x_p2, Mathf.Max(x_p3, Mathf.Max(x_p4, Mathf.Max(x_p5, Mathf.Max(x_p6, x_p7)))))));
var yMin = Mathf.Min(y_p0, Mathf.Min(y_p1, Mathf.Min(y_p2, Mathf.Min(y_p3, Mathf.Min(y_p4, Mathf.Min(y_p5, Mathf.Min(y_p6, y_p7)))))));
var yMax = Mathf.Max(y_p0, Mathf.Max(y_p1, Mathf.Max(y_p2, Mathf.Max(y_p3, Mathf.Max(y_p4, Mathf.Max(y_p5, Mathf.Max(y_p6, y_p7)))))));
if (yMin >= xMin && yMin <= xMax)
{
return(false);
}
if (yMax >= xMin && yMax <= xMax)
{
return(false);
}
if (xMin >= yMin && xMin <= yMax)
{
return(false);
}
if (xMax >= yMin && xMax <= yMax)
{
return(false);
}
return(true);
}
/// <summary>
///
/// </summary>
/// <param name="pVer"></param>
/// <param name="idx"></param>
/// <param name="pOut"></param>
public virtual void VGetBoundingOBBFromVertexIndex(IntPtr pVer, int idx, OBB3D obb)
{
obb = new OBB3D();
}
public bool Intersects(OBB3D other)
{
if (dirty)
{
Update();
dirty = false;
}
other.Update();
var isNotIntersect = false;
isNotIntersect |= ProjectionIsNotIntersect(this, other, XAxis);
if (isNotIntersect)
{
return(false);
}
isNotIntersect |= ProjectionIsNotIntersect(this, other, YAxis);
if (isNotIntersect)
{
return(false);
}
isNotIntersect |= ProjectionIsNotIntersect(this, other, ZAxis);
if (isNotIntersect)
{
return(false);
}
isNotIntersect |= ProjectionIsNotIntersect(this, other, other.XAxis);
if (isNotIntersect)
{
return(false);
}
isNotIntersect |= ProjectionIsNotIntersect(this, other, other.YAxis);
if (isNotIntersect)
{
return(false);
}
isNotIntersect |= ProjectionIsNotIntersect(this, other, other.ZAxis);
if (isNotIntersect)
{
return(false);
}
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(XAxis, other.XAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(XAxis, other.YAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(XAxis, other.ZAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(YAxis, other.XAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(YAxis, other.YAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(YAxis, other.ZAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(ZAxis, other.XAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(ZAxis, other.YAxis).normalized);
//if (isNotIntersect)
// return false;
//isNotIntersect |= ProjectionIsNotIntersect(this, other, Vector3.Cross(ZAxis, other.ZAxis).normalized);
return(isNotIntersect ? false : true);
}
