// Triangle -- [____] Collision Tests
public static bool TestOverlapEdge(TriangleMask triMask, AXLineMask xlMAsk)
{
return TestOverlapEdge(xlMAsk, triMask);
}
public static bool TestOverlapEdge(AXLineMask xlMask, TriangleMask triMask)
{
VectorFP a = (VectorFP)triMask._pos + triMask._p0;
VectorFP b = (VectorFP)triMask._pos + triMask._p1;
VectorFP c = (VectorFP)triMask._pos + triMask._p2;
if (xlMask.IntersectsLineEdge(a, b) || xlMask.IntersectsLineEdge(b, c) || xlMask.IntersectsLineEdge(a, c)) {
return true;
}
VectorFP q = triMask.Barycentric((VectorFP)xlMask._pos + xlMask._p);
return (q.X >= 0 && q.Y >= 0 && (q.X + q.Y) <= 1);
}
// AABB -- [____] Collision Tests
public static bool TestOverlapEdge(AABBMask rMask, AXLineMask xlMask)
{
return TestOverlapEdge(xlMask, rMask);
}
public static bool TestOverlapEdge(PointMask ptMask, AXLineMask xlMask)
{
VectorFP p1 = (VectorFP)ptMask._pos + ptMask._point;
return TestOverlapEdge(xlMask, p1.X, p1.Y);
}
// AXLine -- [____] Collision + Edge Tests
public static bool TestOverlapEdge(AXLineMask xlMask, AABBMask rMask)
{
FPInt py = xlMask._pos.Y + xlMask._p.Y;
FPInt px1 = xlMask._pos.X + xlMask._p.X;
FPInt px2 = px1 + xlMask._w;
VectorFP r1 = (VectorFP)rMask._pos + rMask._point;
VectorFP r2 = r1 + new VectorFP(rMask._w, rMask._h);
return !(py > r2.Y || py < r1.Y || px1 > r2.X || px2 < r1.X);
}
public static bool TestOverlap(LineMask lnMask, AXLineMask xlMask)
{
return TestOverlap(xlMask, lnMask);
}
public static bool TestOverlapEdge(AXLineMask xlMask, FPInt x, FPInt y)
{
VectorFP p2 = (VectorFP)xlMask._pos + xlMask._p;
return (y == p2.Y && x >= p2.X && x <= p2.X + xlMask._w);
}
public static bool TestOverlap(PointMask ptMask, AXLineMask xlMask)
{
return false;
}
public static bool TestOverlap(AYLine ylMask, AXLineMask xlMask)
{
return TestOverlap(xlMask, ylMask);
}
public static bool TestOverlap(AXLineMask xlMask, LineMask lnMask)
{
VectorFP c = (VectorFP)lnMask._pos + lnMask._p0;
VectorFP d = c + new VectorFP(lnMask._w, lnMask._h);
return xlMask.IntersectsLine(c, d);
}
public static bool TestOverlap(AXLine xlMask1, AXLineMask xlMask2)
{
return false;
}
public static bool TestOverlap(AXLineMask xlMask, AYLine ylMask)
{
VectorFP c = (VectorFP)xlMask._pos + xlMask._p;
VectorFP d = c + new VectorFP(xlMask._w, 0);
return ylMask.IntersectsLine(c, d);
}
public static bool TestOverlap(AXLineMask xlMask, CircleMask cMask)
{
return TestOverlap(cMask, xlMask);
}
// AXLine -- [____] Collision Tests
public static bool TestOverlap(AXLineMask xlMask, PointMask ptMask)
{
return TestOverlap(ptMask, xlMask);
}
public static bool TestOverlap(CircleMask cMask, AXLineMask xlMask)
{
VectorFP c1 = (VectorFP)cMask._pos + cMask._p;
VectorFP c2 = xlMask.ClosestPoint(c1);
FPInt d2 = VectorFP.DistanceSquared(c1, c2);
FPInt r2 = cMask._radius * cMask._radius;
return (r2 < d2);
}
public override object Clone()
{
AXLineMask mask = new AXLineMask(_p, _w);
mask._pos = _pos;
return mask;
}