Bank.java

package ring.mobiles.backbone;

import java.io.Serializable;
import java.math.BigInteger;

/**
 * A Bank is a place where money is stored. It can be the money on the Mobile's person
 * or the mone in an actual bank in the game world.
 * @author projectmoon
 *
 */
public class Bank implements Serializable {
	public static final long serialVersionUID = 1;
	
	private BigInteger theMoney;
	
	public Bank() {
		theMoney = BigInteger.valueOf(0);
	}
	
	public Bank(int money) {
		theMoney = BigInteger.valueOf(money);
	}
	
	public Bank(long money) {
		theMoney = BigInteger.valueOf(money);
	}
	
	public Bank(BigInteger money) {
		theMoney = money;
	}
	
	public void deposit(int moreMoney) {
		theMoney = theMoney.add(BigInteger.valueOf(moreMoney));
	}
	
	public int withdraw(int someMoney) {
		if (theMoney.compareTo(BigInteger.valueOf(someMoney)) > 0) {
			theMoney = theMoney.subtract(BigInteger.valueOf(someMoney));
			return someMoney;
		}
		else {
			throw new IllegalArgumentException("You don't have that much money in your bank.");
		}
	}
	
	public void setAmount(long money) {
		theMoney = BigInteger.valueOf(money);
	}
	
	public BigInteger getAmount() {
		return theMoney;
	}

	/* (non-Javadoc)
	 * @see java.lang.Object#hashCode()
	 */
	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result
				+ ((theMoney == null) ? 0 : theMoney.hashCode());
		return result;
	}

	/* (non-Javadoc)
	 * @see java.lang.Object#equals(java.lang.Object)
	 */
	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Bank other = (Bank) obj;
		if (theMoney == null) {
			if (other.theMoney != null)
				return false;
		} else if (!theMoney.equals(other.theMoney))
			return false;
		return true;
	}
}