C++ 贪吃蛇游戏：简单实现代码示例

#include #include <conio.h> #include <windows.h>

using namespace std;

bool gameOver; const int width = 20; const int height = 20; int x, y, fruitX, fruitY, score; int tailX[100], tailY[100]; int nTail; enum eDirection { STOP = 0, LEFT, RIGHT, UP, DOWN }; eDirection dir;

void Setup() { gameOver = false; dir = STOP; x = width / 2; y = height / 2; fruitX = rand() % width; fruitY = rand() % height; score = 0; }

void Draw() { system("cls"); for (int i = 0; i < width + 2; i++) cout << "#"; cout << endl;

for (int i = 0; i < height; i++)
{
    for (int j = 0; j < width; j++)
    {
        if (j == 0)
            cout << "#";
        if (i == y && j == x)
            cout << "O";
        else if (i == fruitY && j == fruitX)
            cout << "F";
        else
        {
            bool printTail = false;
            for (int k = 0; k < nTail; k++)
            {
                if (tailX[k] == j && tailY[k] == i)
                {
                    cout << "o";
                    printTail = true;
                }
            }
            if (!printTail)
                cout << " ";
        }
        if (j == width - 1)
            cout << "#";
    }
    cout << endl;
}

for (int i = 0; i < width + 2; i++)
    cout << "#";
cout << endl;
cout << "Score:" << score << endl;

}

void Input() { if (_kbhit()) { switch (_getch()) { case 'a': dir = LEFT; break; case 'd': dir = RIGHT; break; case 'w': dir = UP; break; case 's': dir = DOWN; break; case 'x': gameOver = true; break; } } }

void Logic() { int prevX = tailX[0]; int prevY = tailY[0]; int prev2X, prev2Y; tailX[0] = x; tailY[0] = y; for (int i = 1; i < nTail; i++) { prev2X = tailX[i]; prev2Y = tailY[i]; tailX[i] = prevX; tailY[i] = prevY; prevX = prev2X; prevY = prev2Y; } switch (dir) { case LEFT: x--; break; case RIGHT: x++; break; case UP: y--; break; case DOWN: y++; break; default: break; } if (x >= width) x = 0; else if (x < 0) x = width - 1; if (y >= height) y = 0; else if (y < 0) y = height - 1;

for (int i = 0; i < nTail; i++)
{
    if (tailX[i] == x && tailY[i] == y)
        gameOver = true;
}

if (x == fruitX && y == fruitY)
{
    score += 10;
    fruitX = rand() % width;
    fruitY = rand() % height;
    nTail++;
}

}

int main() { Setup(); while (!gameOver) { Draw(); Input(); Logic(); Sleep(10); // 控制游戏速度 } return 0; }

该代码使用 Windows.h 头文件中的 Sleep 函数控制游戏速度。您可以在 Visual Studio 或其他支持 C++ 的 IDE 中编译和运行该代码，然后按下 a、d、w、s 来控制蛇的移动，按下 x 键退出游戏。