@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result
				+ ((DronePop == null) ? 0 : DronePop.hashCode());
		result = prime * result + canHold;
		result = prime * result + ((loc == null) ? 0 : loc.hashCode());
		result = prime * result + state;
		return result;
	}