void sparseGrid::SupportIsContained ( bool &check, const unsigned &w, const unsigned &i, const unsigned &wLower, const unsigned &iLower )
{
check = false;
std::vector < double > dimensionalCheck ( _N, 0 );
for ( unsigned n = 0; n < _N; n++ ) {
double leftBound = _hierarchicalDofsCoordinates[w][i][n] - _hs[n][_dofIdentifier[w][i][n][1]];
double rightBound = _hierarchicalDofsCoordinates[w][i][n] + _hs[n][_dofIdentifier[w][i][n][1]];
double leftBoundLower = _hierarchicalDofsCoordinates[wLower][iLower][n] - _hs[n][_dofIdentifier[wLower][iLower][n][1]];
double rightBoundLower = _hierarchicalDofsCoordinates[wLower][iLower][n] + _hs[n][_dofIdentifier[wLower][iLower][n][1]];
if ( leftBoundLower <= leftBound && rightBound <= rightBoundLower ) dimensionalCheck[n] = 1;
}
double sumCheck = 0;
for ( unsigned n = 0; n < _N; n++ ) {
sumCheck += dimensionalCheck[n];
}
if ( sumCheck == _N ) check = true;
}
bool collide(Unit* a, Unit* b)
{
return dimensionalCheck(a->x(), a->width(), b->x(), b->width())
&& dimensionalCheck(a->y(), a->height(), b->y(), b->height());
}
