bool intersect2d::aabb_triangle(const AABB_2D &aabb, const Triangle2D &tri) {
//First check if any of the triangles corners is in the aabb:
if(aabb.contains(tri.p1) || aabb.contains(tri.p2) || aabb.contains(tri.p3)) return true;
//Then if any of the aabb corners are in the triangle
for(const glm::vec2 & c: aabb.corners()) {
if(tri.contains(c)) return true;
}
//Then test if any lines intersect:
return aabb_line(aabb, Line2D(tri.p1, tri.p2)) ||
aabb_line(aabb, Line2D(tri.p2, tri.p3)) ||
aabb_line(aabb, Line2D(tri.p3, tri.p1));
}
/***********************************************************
test if inside triangle
***********************************************************/
bool Point2D::is_inside (const Triangle2D & t) const
{
return t.contains (*this);
}
