@Override
	public boolean equals(Object obj) {
		if (this == obj) {
			return true;
		}
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		Tripoint point = (Tripoint) obj;
		return x == point.x && y == point.y && z == point.z;
	}