斯坦福CS106A作业5

这次作业是设计yahtzee这款游戏。

/*
 * File: Yahtzee.java
 * ------------------
 * This program will eventually play the Yahtzee game.
 */

import acm.io.*;
import acm.program.*;
import acm.util.*;

public class Yahtzee extends GraphicsProgram implements YahtzeeConstants {
	
	public static void main(String[] args) {
		new Yahtzee().start(args);
	}
	
	public void run() {
		IODialog dialog = getDialog();
		nPlayers = dialog.readInt("Enter number of players");
		playerNames = new String[nPlayers];
		for (int i = 1; i <= nPlayers; i++) {
			playerNames[i - 1] = dialog.readLine("Enter name for player " + i);
		}
		display = new YahtzeeDisplay(getGCanvas(), playerNames);
		playGame();
	}

	private void playGame() {
		
		int[] upper=new int[nPlayers];
		int[] lower=new int[nPlayers];
		
		//记录哪些访问过
		int[][] pick=new int[nPlayers][N_CATEGORIES];
		
		for(int l=0;l<N_SCORING_CATEGORIES;l++) {
			for(int k=1;k<=nPlayers;k++) {
				//display.printMessage展示信息
				display.printMessage(k+"'s turn! , Click the \"Roll Dice\" button to roll the dice");
				//选手1
				display.waitForPlayerToClickRoll(k);
				//展示骰子
				int[] a=new int[5];
				for(int i=0;i<5;i++) {
					a[i]=rgen.nextInt(1, 6);
				}
				display.displayDice(a);
				for(int j=0;j<2;j++) {
					//display.printMessage展示信息
					display.printMessage("Select the dice you wish to re-roll and click \"Roll Again\"");
					//修改骰子
					display.waitForPlayerToSelectDice();
					for (int i=0;i<5;i++) {
						if(display.isDieSelected(i)) {
							a[i]=rgen.nextInt(1, 6);
						}
					}
					display.displayDice(a);
				}
				display.printMessage("Select a category for this roll");

				//获得类别
				int category;
				
				//判断是否选取过，如果选取过一直做循环
				do{
					category = display.waitForPlayerToSelectCategory();
					display.printMessage("You already picked that category.Please choose another category");
				}while(pick[k-1][category-1]!=0);
				
				
				pick[k-1][category-1]=1;
				//计算分数
				int score=getScore(a,category);
				
				//更新lower,upper
				if (category<=SIXES) {
					upper[k-1]+=score;
				}else {
					lower[k-1]+=score;
				}
				
				//展示分数
				display.updateScorecard(category, k, score);

			}
		}
		
		for(int k=1;k<=nPlayers;k++) {
			
			//计算bonus
			int bonus=0;
			if(upper[k-1]>=63) {
				bonus=35;
			}
			int total=upper[k-1]+bonus+lower[k-1];
			
			display.updateScorecard(UPPER_SCORE, k, upper[k-1]);
			display.updateScorecard(UPPER_BONUS, k, bonus);
			display.updateScorecard(LOWER_SCORE, k, lower[k-1]);
			display.updateScorecard(TOTAL, k, total);
		}
	}
	
	
	//这里构造一个数组，计算13项的分别得分，然后和category匹配，注意这里的category范围
	private int getScore(int[] dice,int category) {
		
		//记录每一项对应的得分
		int[] score=new int[N_SCORING_CATEGORIES];
		//记录次数
		int[] cnt=new int[6];
		//记录总分
		int chance=0;
		//遍历之后前6已经计算完成
		for (int i=0;i<N_DICE;i++) {
			int num=dice[i];
			score[num-1]+=num;
			cnt[num-1]+=1;
			chance+=num;
		}
		
		//更新7,8,12
		//记录2,3的次数
		int three=0;
		int two=0;
		for (int i=0;i<6;i++) {
			if(cnt[i]>=3) {
				score[6]=chance;
			}
			if(cnt[i]>=4) {
				score[7]=chance;
			}
			if(cnt[i]==5) {
				score[11]=50;
			}
			
			//记录2,3的次数
			if(cnt[i]==3) {
				three=1;
			}
			if(cnt[i]==2) {
				two=1;
			}
		}
		
		//更新9
		if(three==1 && two==1) {
			score[8]=25;
		}
		
		//更新10,11
		if((cnt[0]>0&&cnt[1]>0&&cnt[2]>0&&cnt[3]>0)|
		   (cnt[4]>0&&cnt[1]>0&&cnt[2]>0&&cnt[3]>0)|
		   (cnt[4]>0&&cnt[5]>0&&cnt[2]>0&&cnt[3]>0)) {
			score[9]=30;
		}
		
		if((cnt[0]>0&&cnt[1]>0&&cnt[2]>0&&cnt[3]>0&&cnt[4]>0)|
		   (cnt[1]>0&&cnt[2]>0&&cnt[3]>0&&cnt[4]>0&&cnt[5]>0)) {
					score[10]=40;
		}

		//更新13
		score[12]=chance;

		for(int i=0;i<N_SCORING_CATEGORIES;i++) {
			println(score[i]);
		}

		int index;
		
		if(category<=SIXES) {
			index=category;
		}else {
			index=category-2;
		}
		
		return score[index-1];
	}

		
/* Private instance variables */
	private int nPlayers;
	private String[] playerNames;
	private YahtzeeDisplay display;
	private RandomGenerator rgen = new RandomGenerator();

}