// Random number generator
//
// Author	Matthew Caryl
// Created	24.11.96
//
//  Although under copywrite to the author (Matthew Caryl) this code can be copied and modified for non-commercial
//  purposes as long as any derivatives contain this condition.

package ADT;

import java.util.Date;

final public class Random {
	private long			seed;
	
	public Random() {
		Date date = new Date();
		seed = date.getTime();
		}
	
	public Random(long s) {
		seed = s;
		}
	
	public Random(Random r) {
		seed = r.seed;
		}
	
	public long seed() {
		return seed;
		}
	
	public boolean flip() {
		random();
		return (seed & 1) == 0;
		}
	
	public int range(int range) {
		int	number;
		
		random();
		number = (int) ((seed / 65535) % range);
		return number < 0 ? -number : number;
		}
	
	public long range(long range) {
		long	number;
		
		random();
		number = (int) ((seed / 65535) % range);
		return number < 0 ? -number : number;
		}
	
	void random() {
		seed = seed * 1103515245 + 12345;
		}
	}