package com.egloos.realmove.dp.strategy;

import com.egloos.realmove.dp.strategy.framework.Hand;
import com.egloos.realmove.dp.strategy.framework.HandGameStrategy;

/**
 * °¡À§,¹ÙÀ§,º¸ ¼ø¼­´ë·Î ´ÙÀ½ ¼ÕÀ» ³»¹Î´Ù.
 * ÃÖÃÊÀÇ ¼ÕÀº ·£´ýÇÏ°Ô °áÁ¤ÇÑ´Ù.
 */
public class SequenceStrategy implements HandGameStrategy {

	private Hand prevHand = null;

	public SequenceStrategy() {
		prevHand = this.getRandom();
	}
	
	public Hand getRandom() {
		int i = (int) ( Math.random() * 3 );
		if ( i == Hand.SCISSOR.getValue() ) {
			return Hand.SCISSOR;
		} else if ( i == Hand.ROCK.getValue() ) {
			return Hand.ROCK;
		} else {
			return Hand.PAPER;
		}
	}

	@Override
	public Hand next() {
		Hand next = null;

		if ( prevHand == Hand.SCISSOR ) {
			next = Hand.ROCK;
		} else if ( prevHand == Hand.ROCK ) {
			next = Hand.PAPER;
		} else if ( prevHand == Hand.PAPER ) {
			next = Hand.SCISSOR;
		}

		this.prevHand = next;
		
		return next;
	}

	@Override
	public void study( int result ) {
		// do nothing
	}

}