问题标题: 小游戏

#include <iostream>

#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;

break;

}

}

 

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;

}