CrapsGame

Algorithm Gossip: Craps赌博游戏

说明

一个简单的赌博游戏，游戏规则如下：玩家掷两个骰子，点数为1到6，如果第一次点数和为7或11，则玩家胜，如果点数和为2、3或12，则玩家输，如果和 为其它点数，则记录第一次的点数和，然后继续掷骰，直至点数和等于第一次掷出的点数和，则玩家胜，如果在这之前掷出了点数和为7，则玩家输。

解法

规则看来有些复杂，但是其实只要使用switch配合if条件判断来撰写即可，小心不要弄错胜负顺序即可。

实作

• C /#include /#include /#include /#define WON 0 /#define LOST 1 /#define CONTINUE 2 int rollDice() { return (rand() % 6) + (rand() % 6) + 2; } int main(void) { int firstRoll = 1; int gameStatus = CONTINUE; int die1, die2, sumOfDice; int firstPoint = 0; char c; srand(time(0)); printf("Craps赌博游戏，按Enter键开始游戏////"); while(1) { getchar(); if(firstRoll) { sumOfDice = rollDice(); printf("\n玩家掷出点数和：%d\n", sumOfDice); switch(sumOfDice) { case 7: case 11: gameStatus = WON; break; case 2: case 3: case 12: gameStatus = LOST; break; default: firstRoll = 0; gameStatus = CONTINUE; firstPoint = sumOfDice; break; } } else { sumOfDice = rollDice(); printf("\n玩家掷出点数和：%d\n", sumOfDice); if(sumOfDice == firstPoint) gameStatus = WON; else if(sumOfDice == 7) gameStatus = LOST; } if(gameStatus == CONTINUE) puts("未分胜负，再掷一次////\n"); else { if(gameStatus == WON) puts("玩家胜"); else puts("玩家输"); printf("再玩一次？"); scanf("%c", &c); if(c == 'n') { puts("游戏结束"); break; } firstRoll = 1; } } return 0; }

• Java import java.io./; public class Craps { public static void main(String[] args) throws IOException { final int WON = 0, LOST = 1, CONTINUE = 2; boolean firstRoll = true; int gameStatus = CONTINUE; int die1, die2, sumOfDice; int firstPoint = 0; System.out.print( "Craps赌博游戏，按Enter键开始游戏////"); while(true) { System.in.read(); if(firstRoll) { sumOfDice = rollDice(); System.out.println( "\n玩家掷出点数和：" + sumOfDice); switch(sumOfDice) { case 7: case 11: gameStatus = WON; break; case 2: case 3: case 12: gameStatus = LOST; break; default: firstRoll = false; gameStatus = CONTINUE; firstPoint = sumOfDice; break; } } else { sumOfDice = rollDice(); System.out.println( "\n玩家掷出点数和：" + sumOfDice); if(sumOfDice == firstPoint) gameStatus = WON; else if(sumOfDice == 7) gameStatus = LOST; } if(gameStatus == CONTINUE) System.out.println("未分胜负，再掷一次////"); else { if(gameStatus == WON) System.out.println("玩家胜"); else System.out.println("玩家输"); System.out.print("再玩一次？"); if(System.in.read() == 'n') { System.out.println("游戏结束"); break; } firstRoll = true; } } } public static int rollDice() { int roll = ((int)(Math.random() / 6) + (int)(Math.random() /* 6)); if(roll < 2) { roll = 2; } return roll; } }