bool BodyCreator::m_CheckShape(MapObject& object)
{
const Shape& points = object.PolyPoints();
sf::Uint16 s = points.size();
bool b1 = false;
bool b2 = false;
for (auto i = 0; i < s; i++)
{
sf::Int16 i2 = (i < s - 1) ? i + 1 : 0;
sf::Int16 i3 = (i > 0) ? i - 1 : s - 1;
for (auto j = 0; j < s; j++)
{
if (j != i && j != i2)
{
if (!b1)
{
float direction = m_GetWinding(points[i], points[i2], points[j]);
if (direction > 0.f) b1 = true;
}
if (j != i3)
{
sf::Int16 j2 = (j < s - 1) ? j + 1 : 0;
sf::Vector2f hp = m_HitPoint(points[i], points[i2], points[j], points[j2]);
if (m_OnSeg(hp, points[i], points[i2])
&& m_OnSeg(hp, points[j], points[j2]))
{
std::cerr << "Object " << object.GetName() << " found with possible self intersection." << std::endl;
std::cerr << "Skipping body creation." << std::endl;
return false;
}
}
}
}
if (!b1) b2 = true;
}
if (b2)
{
std::cerr << "Object " << object.GetName() << " vertices are wound in the wrong direction." << std::endl;
std::cerr << "Attempting to fix..." << std::endl;
object.ReverseWinding();
}
return true;
}
