前言

本文基于C语言编写出的相对简单的小游戏，实现的函数都是相对比较简单的，只是其中代码实现中关于光标消失以及清理屏幕运用了一些可能不太常用的知识，希望这篇文章对读者的C语言学习带来些许兴趣。
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代码实现

#include<stdio.h>
#include<stdlib.h>
#include<conio.h>
#include<Windows.h>

//全局变量
int high, width;			//游戏画面大小
int ball_x, ball_y;			//小球的坐标
int ball_vx, ball_vy;		//小球的速度
int position_x, position_y;	//挡板的中心坐标
int ridus;					//挡板半径大小
int left, right;			//挡板的左右位置
int ball_number;			//反弹小球次数
int block_x, block_y;		//砖块的位置
int score;					//消掉的砖块个数



//光标移到(X,Y)位置
void gotoxy(int x, int y)
{
	HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
	COORD pos;
	pos.X = x;
	pos.Y = y;
	SetConsoleCursorPosition(handle, pos);
}

//隐藏光标
void HideCursor()
{
	CONSOLE_CURSOR_INFO cursor_info = { 1,0 };  //第二个值为0，表示隐藏光标
	SetConsoleCursorInfo(GetStdHandle(STD_OUTPUT_HANDLE), &cursor_info);
}

//数据初始化
void startup()
{
	high = 15;
	width = 20;
	ball_x = 0;
	ball_y = width / 2;
	ball_vx = 1;
	ball_vy = 1;
	ridus = 5;
	position_x = high;
	position_y = width / 2;
	left = position_y - ridus;
	right = position_y + ridus;
	ball_number = 0;
	block_x = 0;
	block_y = width / 2;
	score = -1;//初始状态下会导致score为1，因为砖块与小球的初始位置相同
}

//显示画面
void show()
{
	gotoxy(0, 0);
	int i, j;
	for (i = 0; i <= high+1; i++)
	{
		for (j = 0; j <= width; j++)
		{
			if (i == ball_x && j == ball_y)
				printf("O");		//输出小球
			else if (j == width)
				printf("|");		//输出右边框
			else if (i == high + 1)
				printf("_");		//输出下边框
			else if (i == high && j >= left && j <= right)
				printf("*");		//输出挡板
			else if (i == block_x && j == block_y)
				printf("B");
			else
				printf(" ");
		}
		printf("\n");
	}
	printf("反弹小球数：%d\n", ball_number);
	printf("消掉的砖块数：%d\n",score);
}

//与用户输入无关的更新
void updateWithoutInput()
{
	if (ball_x == high - 1)			
	{
		if (ball_y >= left && ball_y <= right)	//没有被挡板挡住
		{
			ball_number++;			//次数加1
			printf("\a");			//响铃
			ball_y = ball_y + rand() % 4 - 2;
		}
		else
		{
			printf("游戏失败\n");
			system("pause");
			exit(0);
		}
	}
	if (ball_x == block_x && ball_y == block_y)
	{
		score++;
		block_y = rand() % width;		//产生新的砖块
	}
	ball_x += ball_vx;
	ball_y += ball_vy;

	if (ball_x == 0 || ball_x == high - 1)
		ball_vx = -ball_vx;
	if (ball_y == 0 || ball_y == width - 1)
		ball_vy = -ball_vy;
	Sleep(80);
}

//与用户输入有关的更新
void updateWithInput()
{
	char input;
	if (_kbhit())		//判断是否有输入
	{
		input = _getch();
		if (input == 'a'&&left>1)
		{
			position_y--;			//位置左移
			left = position_y - ridus;
			right = position_y + ridus;
		}
		if (input == 'd'&&right<width-1)			//位置右移
		{
			position_y++;
			left = position_y - ridus;
			right = position_y + ridus;
		}
		
	}

}

int main()
{
	HideCursor();
	startup();
	while (1)
	{
		show();
		updateWithoutInput();
		updateWithInput();
	}
	return 0;
}