Filter and remove objects from a std::vector

gistfile1.cpp

// filter collidable tiles
std::vector<Point> toRemove;
    for (size_t q = 0; q < freeTileCandidates.size(); ++q)
    {
        Point testTile = freeTileCandidates[q];
        if( this->tileIsCollidable( testTile ) )
              toRemove.push_back(testTile);
    }
    // erase filtered tiles
    for (size_t q = 0; q < toRemove.size(); ++q)
    {
        freeTileCandidates.erase( std::remove(
                        freeTileCandidates.begin(),
                        freeTileCandidates.end(), 
                        toRemove[q] ) );
        }