nimgame.cpp

一个C++写的类似与大航海4中猜金币的小游戏

#include<iostream.h>
#include<stdlib.h>
#include<time.h>

//double random(double a,double b);
int random(int a,int b);
int is_two_power(int n);
void easymode();
void hardmode();

class game
{
private:
	int stones;
public:
	game()
	{
		stones = random(10,100);
	}
	void easy()
	{
		if ( stones!=1 )
		{
		    int a = random(1,stones/2);
		    cout<<"电脑取了"<<a<<"块石子"<<endl;
		    stones-=a;
		}
		else
		{
			cout<<"电脑取了"<<1<<"块石子"<<endl;
			stones-=1;
		}

	
	}
	void hard()
	{
		if ( stones==1 )
		{
			cout<<"电脑取了"<<1<<"块石子"<<endl;
			stones-=1;
		}
		else if ( is_two_power(stones+1) )
		{
            int a = random(1,stones/2);
		    cout<<"电脑取了"<<a<<"块石子"<<endl;
		    stones-=a;
		}
		else
		{
			for(int i=1; i<=stones/2; i++)
			{
				if ( is_two_power(stones-i+1) )
				{
					cout<<"电脑取了"<<i<<"块石子"<<endl;
		            stones-=i;
					break;

				}   //end of  if

			}   //end for

		}  //end of else
	}
	void man()
	{
		int a;
		cout<<"轮到你取石子了，你要取多少块? ";
		if (stones == 1)
		{
			cout<<"你只能取1块石子了"<<endl;
			cout<<"你取了1块石子"<<endl;
			stones-=1;
		}
		else
		{
			     while(1)
				 {
	         	    cin>>a;
	            	if (a >= 1 && a <= stones/2)
					{
		            	cout<<"你取了"<<a<<"块石子"<<endl;
			            stones-=a;	    	   
			         	break;
					}

	        	else if(a > stones/2)
		             	cout<<"你最多取"<<stones/2<<"块石子,请重新取：";
  
		        else
				       cout<<"你取的石子数不可以为零或负,请重新取"<<endl;
				 } //end of while

		}
	}
	int getstones()
	{
		return stones;
	}
};

void main()
{
	cout<<"========================================================================"<<endl;
	cout<<"                            NIM  游戏                                   "<<endl;
	cout<<"========================================================================"<<endl;
	cout<<"    游戏规则："<<endl;
	cout<<"        两名参与者交替从一堆石子中取出若干数目，由参与者自己决定。"<<endl;
	cout<<"    但是，要求参与者每次至少取出一个，至多取出一半，然后另一名参"<<endl;
	cout<<"    与者继续。拿到最后一个石子的参与者将输掉该游戏。"<<endl;
	cout<<endl;
	char continu = 'y';
	while(continu=='y'||continu=='Y')
	{
		cout<<"选择难度:[ 1,简单2,困难 ]"<<endl;
	
	     int select;
	     cin>>select;
     	     if(select==1)
			 {
	            cout<<"游戏开始了，Good Luck!"<<endl;
                easymode();
				cout<<"游戏结束，继续吗?[Y/N]"<<endl;
				cin>>continu;
		
			 }
        	else if(select==2)
			{
	        	cout<<"游戏开始了，Good Luck!"<<endl;
                hardmode();
				cout<<"游戏结束，继续吗?[Y/N]"<<endl;
				cin>>continu;
			}
        	else
	        	cout<<"选项不正确，请重新输入。"<<endl;
	  
     	
	}

}

//double random(double a,double b)
//{
//	srand( (unsigned)time( NULL ) );
//	return a+(b-a)*rand()*(1.0/RAND_MAX);
//}

int random(int a,int b)
{
	srand( (unsigned)time( NULL ) );
    return rand()%(b-a+1)+a;
}

int is_two_power(int n)
{
	while(n%2!=1)
	{
		n = n/2;
	}
	if ( n == 1)
		return 1;
	else
		return 0;

}

void easymode()
{
	game games;
	while ( games.getstones() > 0 )
	{
		cout<<"目前有"<<games.getstones()<<"块石子"<<endl;

		games.man();
		if (games.getstones() <= 0)
		{
			cout<<"哈哈，你输了哦!"<<endl;
			break;
		}

		games.easy();
		if (games.getstones() <= 0)
		{
			cout<<"恭喜，你赢了，好厉害!"<<endl;
			break;
		}

	}  //end of while
}

void hardmode()
{
    game games;
	while ( games.getstones() > 0 )
	{
		cout<<"目前有"<<games.getstones()<<"块石子"<<endl;

		games.man();
		if (games.getstones() <= 0)
		{
			cout<<"哈哈，你输了哦!"<<endl;
			break;
		}

		games.hard();
		if (games.getstones() <= 0)
		{
			cout<<"恭喜，你赢了，好厉害!"<<endl;
			break;
		}

	}  //end of while

}