public override object Clone()
{
LineMask mask = new LineMask(_p0, _w, _h);
mask._pos = _pos;
return mask;
}
public static bool TestOverlapEdge(PointMask ptMask, LineMask lnMask)
{
VectorFP p1 = (VectorFP)ptMask._pos + ptMask._point;
return TestOverlapEdge(lnMask, p1.X, p1.Y);
}
public static bool TestOverlapEdge(LineMask lnMask, FPInt x, FPInt y)
{
PointFP cp = lnMask.ClosestPoint(new PointFP(x, y));
return x == cp.X && y == cp.Y;
}
public static bool TestOverlap(TriangleMask triMask, LineMask lnMask)
{
return TestOverlap(lnMask, triMask);
}
public static bool TestOverlap(PointMask ptMask, LineMask lnMask)
{
return false;
}
public static bool TestOverlap(AABBMask rMask, LineMask lnMask)
{
return TestOverlap(lnMask, rMask);
}
public static bool TestOverlap(LineMask lnMask, TriangleMask triMask)
{
VectorFP a = (VectorFP)triMask._pos + triMask._p0;
VectorFP b = (VectorFP)triMask._pos + triMask._p1;
VectorFP c = (VectorFP)triMask._pos + triMask._p2;
//TestResult t = lnMask.LineIntersect(a, b);
if (lnMask.IntersectsLine(a, b) || lnMask.IntersectsLine(b, c) || lnMask.IntersectsLine(a, c)) {
return true;
}
// Check for containment
VectorFP r = triMask.Barycentric((VectorFP)lnMask._pos + lnMask._p0);
return (r.X >= 0 && r.Y >= 0 && (r.X + r.Y) <= 1);
}
public static bool TestOverlap(LineMask lnMask, AABBMask rMask)
{
VectorFP p0 = (VectorFP)lnMask._pos + lnMask._p0;
VectorFP p1 = new VectorFP(p0.X + lnMask._w, p0.Y + lnMask._h);
return rMask.IntersectsLine(p0, p1);
}
public static bool TestOverlap(LineMask lnMask1, LineMask lnMask2)
{
VectorFP a = (VectorFP)lnMask1._pos + lnMask1._p0;
VectorFP b = a + new VectorFP(lnMask1._w, lnMask1._h);
return lnMask2.IntersectsLine(a, b);
}
public static bool TestOverlap(LineMask lnMask, AYLine ylMask)
{
return TestOverlap(ylMask, lnMask);
}
public static bool TestOverlap(LineMask lnMask, AXLine xlMask)
{
return TestOverlap(xlMask, lnMask);
}
public static bool TestOverlap(LineMask lnMask, CircleMask cMask)
{
return TestOverlap(cMask, lnMask);
}
// Line -- [____] Collision Tests
public static bool TestOverlap(LineMask lnMask, PointMask ptMask)
{
return TestOverlap(ptMask, lnMask);
}
public static bool TestOverlap(AYLine ylMask, LineMask lnMask)
{
VectorFP c = (VectorFP)lnMask._pos + lnMask._p0;
VectorFP d = c + new VectorFP(lnMask._w, lnMask._h);
return ylMask.IntersectsLine(c, d);
}
public static bool TestOverlap(CircleMask cMask, LineMask lnMask)
{
VectorFP c = (VectorFP)cMask._pos + cMask._p;
VectorFP p = lnMask.ClosestPoint(c);
p = p - c;
FPInt p2 = p.LengthSquared();
FPInt r2 = cMask._radius * cMask._radius;
return (p2 < r2);
}
