C语言如何开发实现井字棋
C语言如何开发实现井字棋
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总体思路
井字棋棋盘我们总体可以当成一个二维数组来操作，我们分别需要实现初始化二维数组，打印棋盘，玩家下棋，电脑下棋，判断输赢等代码
项目的创建
我们创建了头文件用于放函数的声明，game.c文件放置函数的实现，test.c文件用于测试。
测试结果
电脑获胜：
玩家获胜：
平局：
各函数代码的实现
我们在game.c文件中实现函数功能的代码
初始化二维数组
voidInitBoard(charBoard[ROW][COL],introw,intcol){for(inti=0;i<row;i++){for(intj=0;j<col;j++){Board[i][j]='';}}}
打印棋盘
voidDisplayBoard(charBoard[ROW][COL],introw,intcol){for(inti=0;i<row;i++){for(intj=0;j<col;j++){printf("%c",Board[i][j]);if(j<col-1)printf("|");}printf("\n");if(i<row-1){for(intj=0;j<col;j++){printf("---");if(j<col-1)printf("|");}}printf("\n");}}
这里的棋盘我们只打印了井字的形状，如果为了美观，还可以进行封边，这里就留给朋友们自行实现啦。
玩家下棋
voidPlayMove(charBoard[ROW][COL],introw,intcol){while(1){intx=0,y=0;printf("请输入坐标：\n");scanf("%d%d",&x,&y);if(x>=1&&x<=row&&y>=1&&y<=col){if(Board[x-1][y-1]==''){Board[x-1][y-1]='#';break;}elseprintf("该位置已被占，请重新输入：\n");}else{printf("输入错误，请重新输入：\n");}}}
电脑下棋
在电脑落子之前，先检测有没有下一步可以直接赢的，若有，则落子在此处，电脑获胜，若没有，再检测玩家下一步是否有机会获胜，若玩家下一步可以直接获胜，那么电脑将抢占这一步。
如果上述两种情况均不存在，当发现(1，1)位置是空时，电脑先下这一步。
其他情况均随意落子。
voidComputerMove(charBoard[ROW][COL],introw,intcol){intx=0,y=0;while(1){if(JudgeComputer(Board,ROW,COL)){for(inti=0;i<row;i++){if(Board[i][0]==Board[i][1]&&Board[i][0]=='*'&&Board[i][2]==''){Board[i][2]='*';return;}elseif(Board[i][0]==Board[i][2]&&Board[i][0]=='*'&&Board[i][1]==''){Board[i][1]='*';return;}elseif(Board[i][1]==Board[i][2]&&Board[i][1]=='*'&&Board[i][0]==''){Board[i][0]='*';return;}}for(intj=0;j<col;j++){if(Board[0][j]==Board[1][j]&&Board[0][j]=='*'&&Board[2][j]==''){Board[2][j]='*';return;}elseif(Board[0][j]==Board[2][j]&&Board[0][j]=='*'&&Board[1][j]==''){Board[1][j]='*';return;}elseif(Board[1][j]==Board[2][j]&&Board[1][j]=='*'&&Board[0][j]==''){Board[0][j]='*';return;}}if(Board[0][0]==Board[1][1]&&Board[0][0]=='*'&&Board[2][2]==''){Board[2][2]='*';return;}elseif(Board[0][0]==Board[2][2]&&Board[0][0]=='*'&&Board[1][1]==''){Board[1][1]='*';return;}elseif(Board[1][1]==Board[2][2]&&Board[1][1]=='*'&&Board[0][0]==''){Board[0][0]='*';return;}elseif(Board[0][2]==Board[1][1]&&Board[0][2]=='*'&&Board[2][0]==''){Board[2][0]='*';return;}elseif(Board[0][2]==Board[2][0]&&Board[0][2]=='*'&&Board[1][1]==''){Board[1][1]='*';return;}elseif(Board[2][0]==Board[1][1]&&Board[2][0]=='*'&&Board[0][2]==''){Board[0][2]='*';return;}}elseif(JudgePlayer(Board,ROW,COL)){for(inti=0;i<row;i++){if(Board[i][0]==Board[i][1]&&Board[i][0]=='#'&&Board[i][2]==''){Board[i][2]='*';return;}elseif(Board[i][0]==Board[i][2]&&Board[i][0]=='#'&&Board[i][1]==''){Board[i][1]='*';return;}elseif(Board[i][1]==Board[i][2]&&Board[i][1]=='#'&&Board[i][0]==''){Board[i][0]='*';return;}}for(intj=0;j<col;j++){if(Board[0][j]==Board[1][j]&&Board[0][j]=='#'&&Board[2][j]==''){Board[2][j]='*';return;}elseif(Board[0][j]==Board[2][j]&&Board[0][j]=='#'&&Board[1][j]==''){Board[1][j]='*';return;}elseif(Board[1][j]==Board[2][j]&&Board[1][j]=='#'&&Board[0][j]==''){Board[0][j]='*';return;}}if(Board[0][0]==Board[1][1]&&Board[0][0]=='#'&&Board[2][2]==''){Board[2][2]='*';return;}elseif(Board[0][0]==Board[2][2]&&Board[0][0]=='#'&&Board[1][1]==''){Board[1][1]='*';return;}elseif(Board[1][1]==Board[2][2]&&Board[1][1]=='#'&&Board[0][0]==''){Board[0][0]='*';return;}elseif(Board[0][2]==Board[1][1]&&Board[0][2]=='#'&&Board[2][0]==''){Board[2][0]='*';return;}elseif(Board[0][2]==Board[2][0]&&Board[0][2]=='#'&&Board[1][1]==''){Board[1][1]='*';return;}elseif(Board[2][0]==Board[1][1]&&Board[2][0]=='#'&&Board[0][2]==''){Board[0][2]='*';return;}}else{if(Board[1][1]==''){Board[1][1]='*';return;}else{x=rand()%row;y=rand()%col;if(Board[x][y]==''){Board[x][y]='*';break;}}}}}
判断电脑是否有位置可以获胜
staticintJudgeComputer(charBoard[ROW][COL],introw,intcol){for(inti=0;i<row;i++){if(Board[i][0]==Board[i][1]&&Board[i][0]=='*'&&Board[i][2]=='')return1;elseif(Board[i][0]==Board[i][2]&&Board[i][0]=='*'&&Board[i][1]=='')return1;elseif(Board[i][1]==Board[i][2]&&Board[i][1]=='*'&&Board[i][0]=='')return1;}for(intj=0;j<col;j++){if(Board[0][j]==Board[1][j]&&Board[0][j]=='*'&&Board[2][j]=='')return1;elseif(Board[0][j]==Board[2][j]&&Board[0][j]=='*'&&Board[1][j]=='')return1;elseif(Board[1][j]==Board[2][j]&&Board[1][j]=='*'&&Board[0][j]=='')return1;}if(Board[0][0]==Board[1][1]&&Board[0][0]=='*'&&Board[2][2]=='')return1;elseif(Board[0][0]==Board[2][2]&&Board[0][0]=='*'&&Board[1][1]=='')return1;elseif(Board[1][1]==Board[2][2]&&Board[1][1]=='*'&&Board[0][0]=='')return1;elseif(Board[0][2]==Board[1][1]&&Board[0][2]=='*'&&Board[2][0]=='')return1;elseif(Board[0][2]==Board[2][0]&&Board[0][2]=='*'&&Board[1][1]=='')return1;elseif(Board[2][0]==Board[1][1]&&Board[2][0]=='*'&&Board[0][2]=='')return1;elsereturn0;}
判断玩家是否有位置获胜
staticintJudgePlayer(charBoard[ROW][COL],introw,intcol){for(inti=0;i<row;i++){if(Board[i][0]==Board[i][1]&&Board[i][0]=='#'&&Board[i][2]=='')return1;elseif(Board[i][0]==Board[i][2]&&Board[i][0]=='#'&&Board[i][1]=='')return1;elseif(Board[i][1]==Board[i][2]&&Board[i][1]=='#'&&Board[i][0]=='')return1;}for(intj=0;j<col;j++){if(Board[0][j]==Board[1][j]&&Board[0][j]=='#'&&Board[2][j]=='')return1;elseif(Board[0][j]==Board[2][j]&&Board[0][j]=='#'&&Board[1][j]=='')return1;elseif(Board[1][j]==Board[2][j]&&Board[1][j]=='#'&&Board[0][j]=='')return1;}if(Board[0][0]==Board[1][1]&&Board[0][0]=='#'&&Board[2][2]=='')return1;elseif(Board[0][0]==Board[2][2]&&Board[0][0]=='#'&&Board[1][1]=='')return1;elseif(Board[1][1]==Board[2][2]&&Board[1][1]=='#'&&Board[0][0]=='')return1;elseif(Board[0][2]==Board[1][1]&&Board[0][2]=='#'&&Board[2][0]=='')return1;elseif(Board[0][2]==Board[2][0]&&Board[0][2]=='#'&&Board[1][1]=='')return1;elseif(Board[2][0]==Board[1][1]&&Board[2][0]=='#'&&Board[0][2]=='')return1;elsereturn0;}
判断输赢
charIsWin(charBoard[ROW][COL],introw,intcol)for(inti=0;i<row;i++){if(Board[i][0]==Board[i][1]&&Board[i][2]==Board[i][1]&&Board[i][1]!=''){returnBoard[i][0];}}for(intj=0;j<col;j++){if(Board[0][j]==Board[1][j]&&Board[1][j]==Board[2][j]&&Board[j][1]!=''){returnBoard[0][j];}}if(Board[0][0]==Board[1][1]&&Board[2][2]==Board[1][1]&&Board[2][2]!='')returnBoard[0][0];if(Board[0][2]==Board[1][1]&&Board[2][0]==Board[1][1]&&Board[1][1]!='')returnBoard[1][1];if(IsFull(Board,ROW,COL)){return'o';}return'C';}
判断和棋
staticintIsFull(charBoard[ROW][COL],introw,intcol){for(inti=0;i<row;i++){for(intj=0;j<col;j++){if(Board[i][j]=='')return0;}}return1;}
声明代码
我们在game.h头文件中进行函数的声明。
voidmeun();#defineROW3#defineCOL3//游戏主函数voidgame();//初始化二维数组voidInitBoard(charBoard[ROW][COL],introw,intcol);//打印棋盘voidDisplayBoard(charBoard[ROW][COL],introw,intcol);//玩家下棋voidPlayMove(charBoard[ROW][COL],introw,intcol);//电脑下棋voidComputerMove(charBoard[ROW][COL],introw,intcol);//判断赢否charIsWin(charBoard[ROW][COL],introw,intcol);//判断棋盘满了吗//intIsFull(charBoard[ROW][COL],introw,intcol);//判断电脑下一部是否可以直接赢//intJudgeComputer(charBoard[ROW][COL],introw,intcol);//判断玩家下一步是否会赢//intJudgePlayer(charBoard[ROW][COL],introw,intcol);
测试代码
我们在test.c文件中测试该游戏。
#include"game.h"voidgame(){charret=0;charBoard[ROW][COL]={0};//初始化数组InitBoard(Board,ROW,COL);//打印棋盘printf("棋盘如下：\n");DisplayBoard(Board,ROW,COL);while(1){//玩家下棋printf("玩家落子：\n");PlayMove(Board,ROW,COL);//每下一步打印一次棋盘DisplayBoard(Board,ROW,COL);//每下一步判断一次胜负ret=IsWin(Board,ROW,COL);if(ret!='C'){break;}//电脑下棋printf("电脑落子：\n");ComputerMove(Board,ROW,COL);//每下一步打印一次棋盘DisplayBoard(Board,ROW,COL);ret=IsWin(Board,ROW,COL);if(ret!='C'){break;}}if(ret=='#')printf("玩家获胜\n");elseif(ret=='*')printf("电脑获胜\n");elseif(ret=='o')printf("卧龙凤雏\n");}voidtest(){intinput=0;srand((size_t)time(NULL));do{meun();printf("请选择:>");scanf("%d",&input);switch(input){case1:game();break;case0:printf("游戏结束\n");break;default:printf("输入错误，请重新输入：\n");break;}}while(input);}intmain(){test();return0;}
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