EntityID.java

package rescuecore2.worldmodel;

/**
   A type-safe ID class for entities. IDs are really just integers.
 */
public final class EntityID {
    private final int id;

    /**
       Construct a new EntityID object.
       @param id The numeric ID to use.
     */
    public EntityID(int id) {
        this.id = id;
    }

    @Override
    public boolean equals(Object o) {
        if (o instanceof EntityID) {
            return this.id == ((EntityID)o).id;
        }
        return false;
    }

    @Override
    public int hashCode() {
        return id;
    }

    /**
       Get the numeric ID for this object.
       @return The numeric ID.
     */
    public int getValue() {
        return id;
    }

    @Override
    public String toString() {
        return String.valueOf(id);
    }
}