ParticleCell2D -> add changeCell bool

include/Algo/MovingObjects/particle_cell_2D.h

@@ -40,6 +40,8 @@ class ParticleCell2D : public ParticleBase
 
 	DartMarker& obstacle;
 
+	bool changeCell ;
+
 	ParticleCell2D() {}
 
 	ParticleCell2D(Map& map, Dart belonging_cell, VEC3 pos, TAB_POS tabPos, DartMarker& obst) : ParticleBase(pos), m(map), d(belonging_cell), m_positions(tabPos), obstacle(obst)
@@ -71,6 +73,7 @@ class ParticleCell2D : public ParticleBase
 
 	void move(const VEC3& newCurrent)
 	{
+		changeCell = false ;
 		if(!Geom::arePointsEquals(newCurrent, m_position)) {
 			prevPos = m_position;
 

include/Algo/MovingObjects/particle_cell_2D.hpp

@@ -69,6 +69,7 @@ void ParticleCell2D<PFP>::vertexState(const VEC3& current)
 	#endif
 	assert(std::isfinite(current[0]) && std::isfinite(current[1]) && std::isfinite(current[2]));
 
+	changeCell = true;
 	if(Algo::Geometry::isPointOnVertex<PFP>(m,d,m_positions,current)) {
 		state = VERTEX_ORBIT;
 		return;
@@ -135,6 +136,7 @@ void ParticleCell2D<PFP>::edgeState(const VEC3& current, Geom::Orientation2D sid
 	assert(std::isfinite(current[0]) && std::isfinite(current[1]) && std::isfinite(current[2]));
 // 	assert(Algo::Geometry::isPointOnEdge<PFP>(m,d,m_positions,m_position));
 
+	changeCell = true;
 	if(sideOfEdge==Geom::ALIGNED)
 		sideOfEdge = getOrientationEdge(current,d);