#include"stdio.h"
#include"bios.h"
#define LEFT 75
#define RIGHT 77
#define UPPER 72
#define DOWN 80
#define ESC 27
union keyboard                   /*定義讀取鍵盤碼的共用體類型*/
{
unsigned int iKeyInfo;
char chKeyBit[2];
};
int fnGetKey(void)                /*定義讀取鍵盤碼的函數*/
{
union keyboard uniKey1;           /*定義讀取鍵盤碼的共用體變量*/
while(bioskey(1)==0);             /*檢測用戶是否按鍵*/
uniKey1.iKeyInfo=bioskey(0);      /*讀取按鍵信息*/
return(uniKey1.chKeyBit[0]==0?uniKey1.chKeyBit[1]:uniKey1.chKeyBit[0]);   /*返回ASCII碼或擴充碼*/
}
void main()
{
int iKey,x=11,y=6;               /*x,y為人物移動后坐標*/
int chMap[10][10]={              /*用二維數組定義地圖*/
                  {0,0,0,0,0,0,0,0,0,0},   /*0表示墻1表示路2表示出口*/
                  {0,1,0,0,1,1,1,1,1,0},
                  {0,1,1,0,1,0,1,0,1,0},
                  {0,0,1,0,1,0,1,0,1,0},
                  {0,0,1,1,1,0,0,0,1,0},
                  {0,0,0,0,0,0,1,1,1,0},
                  {0,1,0,0,1,1,1,0,0,0},
                  {0,1,1,1,1,0,0,0,2,0},
                  {0,1,0,0,1,1,1,1,1,0},
                  {0,0,0,0,0,0,0,0,0,0},
                  };
int i,j;          /*反復進行求移動的坐標運算*/
  while(1)
  {
  for(i=0;i<10;i++)   /*輸出新地圖(刷新地圖)*/
  {
   gotoxy(10,5+i);
   for(j=0;j<10;j++)
    {
     if(chMap[i][j]==0)
        printf("#");
     if(chMap[i][j]==1)
        printf(" ");
     if(chMap[i][j]==2)
        printf("E");
    }

  }
  if(chMap[y-5][x-10]==2)     /*如果如果人的坐標和目標坐標重合輸出"YOU WIN!"退出*/
  {
    clrscr();
    printf("You Win!");
    break;
  }                           /*在起始(或移動后)的坐標輸出人*/
  gotoxy(x,y);
  printf("*\b");
  iKey=fnGetKey();                       /*按讀取的按鍵信息改變坐標如果改變的坐標和墻(0)重合則不改變*/
  if(iKey==LEFT&&chMap[y-5][x-1-10]!=0)
     x--;
  if(iKey==RIGHT&&chMap[y-5][x+1-10]!=0)
     x++;
  if(iKey==UPPER&&chMap[y-1-5][x-10]!=0)
     y--;
  if(iKey==DOWN&&chMap[y+1-5][x-10]!=0)
     y++;
  if(iKey==ESC)                   /*輸入ESC退出并輸出"YOU LOST"*/
  {
    clrscr();
    printf("You Lost");
    break;
  }
  clrscr();
  }
getch();
}