本文例項為大家分享了C++實現貪吃蛇遊戲的具體程式碼，供大家參考，具體內容如下

剛學完了C語言，便嘗試的寫了貪吃蛇的程式碼，但是效果不佳，很多的bug，所以，這個學了C++，便重新的寫了這個小遊戲，用類來封裝！

先是標頭檔案：

struct Snake
{
 int x,y;
};
class snake
{
public:
 snake()    //建構函式
 {
 length = 3;
 s[2].x = 10;
 s[2].y = 10;
 s[1].x = 9;
 s[1].y = 10;
 s[0].x = 8;
 s[0].y = 10;
 up = right = left = down = 0;
 }
 ~snake(){}
 void display();  //顯示蛇身函式
 void Rightmove();  //右移函式
 void Leftmove();  //左移函式
 void Upmove();   //上移函式
 void Downmove();  //下移函式
 int cheak();   //檢查是否撞牆或撞到自身
 void creat_food();  //產生食物
 int eat_food();  //吃食物
private:
 struct Snake s[100]; //先定義蛇身最長100
 int length;   //當前蛇長度
 int x3,y3;   //食物座標
 int up,down,right,left; //蛇的狀態，是上移還是下移或...
};
 
void make_frame();  //列印框架的函式
void show();   //遊戲開始倒計時函式
void gameover();  //遊戲結束函式

下面是各個函式的實現的cpp檔案：

# include <iostream>
# include <Windows.h>
# include <time.h>
# include "snake.h"
# define MaxLen 20
# define MaxWen 30
using namespace std;
HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE); //獲取控制代碼
void gotoxy(HANDLE hOut,int x,int y)   //輸出位置的函式
{
 COORD pos;
 pos.X = x;
 pos.Y = y;
 SetConsoleCursorPosition(hOut,pos);
}
 
void snake::display()      //列印蛇身
{
 for (int i = length - 1; i >= 0; i--)
 {
 if (i == length - 1)    //列印蛇頭
 {
 gotoxy(hOut,s[i].x,s[i].y); 
 cout << char(15);
 }
 else        //列印蛇身
 {
 gotoxy(hOut,s[i].y);
 cout << '*';
 }
 }
 gotoxy(hOut,22);
}
void snake::Rightmove()     //右移
{
 right = 1; up = down = left = 0;
 int x1,x2,y1,y2;
 x1 = x2 = s[length - 1].x;
 y1 = y2 = s[length - 1].y;
 s[length - 1].x++;      //蛇頭x座標自增
 for (int i = length - 2; i >= 0; i--)  //除了蛇頭，其他的結點都等於它的上一個結點的座標
 {
 x2 = s[i].x; y2 = s[i].y;
 s[i].x = x1; s[i].y = y1;
 x1 = x2; y1 = y2;
 }
 gotoxy(hOut,y2);   //消除蛇移動遺留的 ‘*'
 cout << ' ';
}
void snake::Leftmove()    //左移
{
 left = 1; right = up = down = 0;
 int x1,y2;
 x1 = x2 = s[length - 1].x;
 y1 = y2 = s[length - 1].y;
 s[length - 1].x--;      //同上
 for (int i = length - 2; i >= 0; i--)
 {
 x2 = s[i].x; y2 = s[i].y;
 s[i].x = x1; s[i].y = y1;
 x1 = x2; y1 = y2;
 }
 gotoxy(hOut,y2);   //同上
 cout << ' ';
}
void snake::Downmove()   //下移
{
 down = 1; right = up = left = 0;
 int x1,y2;
 x1 = x2 = s[length - 1].x;
 y1 = y2 = s[length - 1].y;
 s[length - 1].y++;      //同上
 for (int i = length - 2; i >= 0; i--)
 {
 x2 = s[i].x; y2 = s[i].y;
 s[i].x = x1; s[i].y = y1;
 x1 = x2; y1 = y2;
 }
 gotoxy(hOut,y2);   //同上
 cout << ' ';
}
void snake::Upmove()    //上移
{
 up = 1; down = right = left = 0;
 int x1,y2;
 x1 = x2 = s[length - 1].x;
 y1 = y2 = s[length - 1].y;
 s[length - 1].y--;      //同上
 for (int i = length - 2; i >= 0; i--)
 {
 x2 = s[i].x; y2 = s[i].y;
 s[i].x = x1; s[i].y = y1;
 x1 = x2; y1 = y2;
 }
 gotoxy(hOut,y2);  //同上
 cout << ' ';
}
int snake::cheak()
{
 int flag = 0;
 for (int i = length - 2; i >= 0; i--)   //是否撞到自身
 {
 if (s[i].x == s[length - 1].x && s[i].y == s[length - 1].y)
 {
 flag = 1;  //是，識別符號為1
 break;
 }
 }
 if (flag == 1 || (s[length - 1].x >= 30 + 1 || s[length - 1].x < 4) || (s[length - 1].y <= 1 || s[length - 1].y >= 20))
 {
 return 0;   //檢測是否撞自身，或者撞牆
 }
 else
 {
 return 1;
 }
}
void snake::creat_food()   //產生食物座標
{
xy: x3 = (rand() % (25)) + 3;
 y3 = (rand() % (17)) + 2;
 for (int i = length - 1; i >= 0; i--) //檢查食物是否在蛇身上
 {
 if (s[i].x == x3 && s[i].y == y3) //是就重新產生食物座標
 goto xy;
 }
 gotoxy(hOut,x3,y3);  //顯示食物
 cout << '*';
}
int snake::eat_food()
{
 if (s[length - 1].x == x3 && s[length - 1].y == y3) //蛇頭碰到食物
 {
 if (up == 1)     //如果蛇是在上移，增加一個結點，為蛇頭的上一個結點
 {
 s[length].x = x3;
 s[length].y = y3 - 1;
 }
 else if (down == 1)    //同上
 {
 s[length].x = x3;
 s[length].y = y3 + 1;
 }
 else if (right == 1)   //同上
 {
 s[length].x = x3 + 1;
 s[length].y = y3;
 }
 else if (left == 1)    //同上
 {
 s[length].x = x3 - 1;
 s[length].y = y3;
 }
 length++;      //蛇長加1
 return 1;
 }
 else
 return 0;
}
void make_frame()      //列印框架函式
{
 cout << "   貪吃蛇遊戲" << endl;
 gotoxy(hOut,2,1);
 cout << "╔";
 for (int i = 4; i < 2 + MaxWen; i++)
 {
 gotoxy(hOut,i,1);
 printf("=");
 }
 for (int i = 2; i < MaxLen; i++)
 {
 gotoxy(hOut,i);
 printf("║");
 }
 gotoxy(hOut,2 + MaxWen,1);
 printf("╗");
 for (int i = 2; i < MaxLen; i++)
 {
 gotoxy(hOut,MaxLen);
 printf("╚");
 gotoxy(hOut,MaxLen);
 printf("╝");
 for (int i = 4; i < 2 + MaxWen; i++)
 {
 gotoxy(hOut,MaxLen);
 printf("=");
 }
}
void show()   //顯示操作方法和遊戲開始倒計時
{
 gotoxy(hOut,35,5);
 cout << "↑:" << 'w';
 gotoxy(hOut,6);
 cout << "←:" << 'a';
 gotoxy(hOut,7);
 cout << "↓:" << 's';
 gotoxy(hOut,8);
 cout << "→:" << 'd';
 gotoxy(hOut,16,5);
 cout << '3';
 Sleep(1000);
 gotoxy(hOut,5);
 cout << '2';
 Sleep(1000);
 gotoxy(hOut,5);
 cout << '1';
 Sleep(1000);
 gotoxy(hOut,5);
 cout << ' ';
}
void gameover()  //遊戲結束函式
{
 system("cls");
 system("color 3B");
 gotoxy(hOut,14,5);
 cout << "  GAME OVER!";
 gotoxy(hOut,6);
 cout << "PLAY AGAIN ? Y(yes) \ N(no)";
}

主函式的cpp檔案：

# include <iostream>
# include <Windows.h>
# include <conio.h>
# include "snake.h"
using namespace std;
char ch;
int main()
{
 while (1)
 {
 snake sn;    //宣告物件
 system("cls");   //清屏
 system("color 3B");  //背景和字型顏色調整
 make_frame();   //列印框架
 sn.display();   //顯示蛇
 show();     //遊戲開始
 sn.creat_food();   //產生食物
 while (sn.cheak())  //檢查是否死亡
 { 
 sn.Rightmove();  //右移
 sn.display();  //顯示蛇身
 if (sn.eat_food()) //檢查是否吃到食物
 {
 sn.creat_food(); //重新產生食物
 sn.display();
 }
 Sleep(500);   //等待500Ms
 p: if (_kbhit())      //是否有按鍵
 {
 ch = _getch();
 if (ch == 97 || ch == 100)
  goto p;
 if (ch == 115 || ch == 119)
  break;
 }
 }
 pp: switch (ch)   //有按鍵
 {
 case 119:    //上移的情況
 {
 while (sn.cheak())
 {
  sn.Upmove();
  sn.display();
  if (sn.eat_food())
  {
  sn.creat_food();
  sn.display();
  Sleep(300);
  }
  Sleep(500);
 pw: if (_kbhit())
 {
  ch = _getch();
  if (ch == 119 || ch == 115)
  goto pw;
  if (ch == 97 || ch == 100)
  goto pp;
 }
 }
 }break;
 case 97:    //左移的情況
 {
  while (sn.cheak())
  { 
  sn.Leftmove();
  sn.display();
  if (sn.eat_food())
  {
  sn.creat_food();
  sn.display();
  }
  Sleep(500);
  pa: if (_kbhit())
  {
  ch = _getch();
  if (ch == 97 || ch == 100)
   goto pa;
  if (ch == 115 || ch == 119)
   goto pp;
  }
  }
 }break;
 case 115:    //下移的情況
 {
 while (sn.cheak())
 { 
  sn.Downmove(); 
  sn.display();
  if (sn.eat_food())
  {
  sn.creat_food();
  sn.display();
  Sleep(300);
  }
  Sleep(500);
 ps: if (_kbhit())
 {
  ch = _getch();
  if (ch == 115 || ch == 119)
  goto ps;
  if (ch == 97 || ch == 100)
  goto pp;
 }
 }
 }break;
 case 100:     //右移的情況
 {
 while (sn.cheak())
 {
  sn.Rightmove(); 
  sn.display();
  if (sn.eat_food())
  {
  sn.creat_food();
  sn.display();
  } 
  Sleep(500);
 pd: if (_kbhit())
  {
  ch = _getch();
  if (ch == 100 || ch == 97)
  goto pd;
  if (ch == 119 || ch == 115)
  goto pp;
  }
 }
 }break;
 default:
 break;
 }
 gameover();   //顯示遊戲結束，是否重玩
 py: ch = _getch();
 if (ch == 110)   //否
 {
 system("cls");
 break;
 }
 else if (ch == 121) //是
 continue;
 else
 goto py;
 }
 return 0;
}

下面是遊戲的截圖：

控制檯的實現，不是很美觀，主要是由於上下和左右的間隙不一樣大，所以看起來不是很好看，但總體還是實現了貪吃蛇！

關於C++小遊戲的更多精彩內容請點選專題： 《C++經典小遊戲》 學習瞭解

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。