for (int i = 0; i < herbivoreOrganismManager.size; ++i) {
        sf::Vector2i position = herbivoreOrganismManager.positions[i];
        if (plantOrganismManager.positionOccupied(position)) {
            int plant = plantOrganismManager.atPosition(position);
            herbivoreOrganismManager.energies[i] += plantOrganismManager.energies[plant];
            plantOrganismManager.energies[plant] = 0;
            if (position != plantOrganismManager.positions[plant]) {
                //std::cout << "derp" << std::endl;
            }
        }
        herbivoreOrganismManager.energies[i] -= 1;
    }