C语言小插曲——对图形库的初步探索（消除小球小游戏）

#include <graphics.h>
#include <time.h>
#include <stdio.h>
#include <conio.h>
#define ROW 9
#define COL 9
#define SIZE 25
#define EASY 10
#define SPEED 500
int main()
{
  //重新开始游戏
  again:
  int x,y,r = 0,g = 0,b = 0,count = 0,row,col,s = 0;
  int speed = SPEED;
 
  //建立一个用于存放小球的二维数组
  int arr[ROW][COL] = { 0 };
  //随机数
  srand((unsigned int)time(NULL));
 
  //建立窗口
  initgraph(ROW * (2 * SIZE) + 200, COL * (2 * SIZE));
 
  //设定背景颜色
  setbkcolor(WHITE);
  cleardevice();
 
  //初始化小球数组
  for (x = 0; x < ROW; x++)
  {
    for (y = 0; y < COL; y++)
    {
      arr[x][y] = 1;
    }
  }
 
  //建立字符数组，用于后面显示分数
  char ch[5];
 
  //显示游戏基本情况
  settextstyle(16, 0, "新宋体");
  settextcolor(RGB(248, 99, 82));
  outtextxy(ROW * (2 * SIZE) + 10, 50, "通过鼠标点击来消除小球");
  outtextxy(ROW * (2 * SIZE) + 10, 70, "当屏幕中小球达到10个时");
  outtextxy(ROW * (2 * SIZE) + 10, 90, "则游戏结束");
  outtextxy(ROW * (2 * SIZE) + 10, 110, "难度：普通");
  outtextxy(ROW * (2 * SIZE) + 10, 130, "按下空格键开始游戏");
  setlinecolor(BROWN);
  rectangle(1, 1, ROW * (2 * SIZE)-1, COL * (2 * SIZE)- 1);
 
  //键盘操作开始游戏
  char key = 0;
  key = _getch();
  while (1)
  {
    switch (key)
    {
    case 32:
            while (count < EASY)
      {
        for (row = 0; row < ROW; row++)
        {
          for (col = 0; col < COL; col++)
          {
            //使小球获得随机颜色
            r = rand() % 255 + 20;
            g = rand() % 255 + 20;
            b = rand() % 255 + 20;
            x = rand() % ROW;
            setfillcolor(RGB(r, g, b));
            
            //获取鼠标点击的信息
            if (MouseHit())
            {
              MOUSEMSG msg = GetMouseMsg();
              switch (msg.uMsg)
              {
              case WM_LBUTTONDOWN:
                //判断鼠标点击的坐标处是否有小球
                if (arr[msg.y / (SIZE*2)][msg.x / (SIZE*2)] == 2)
                {
                  clearcircle(SIZE + ((msg.x / (SIZE*2)) * 2 * SIZE), SIZE + ((msg.y / (SIZE*2)) * 2 * SIZE), SIZE);
                  arr[msg.y / (SIZE*2)][msg.x / (SIZE*2)] = 1;
                  count--;
                  s += 1;
                  printf("sore = %d\n", s);
                  sprintf_s(ch, "%d", s);
                  outtextxy(ROW * (2 * SIZE) + 10, 150, "score：");
                  outtextxy(ROW * (2 * SIZE) + 80, 150, ch);
                }
 
              }
            }
 
            //鼠标无操作，则立即开始随机生成小球
            //避免重复生成在同一个位置，加多判断条件
            else if (x == 5 && arr[row][col] != 2)
            {
              arr[row][col] = 2;
              solidcircle(SIZE + ((col) * 2 * SIZE), SIZE + ((row) * 2 * SIZE), SIZE);
              count++;
              Sleep(speed);
            }
            else
              continue;
          }
        }
 
        //使得生成小球的速度随着鼠标点击次数越多而越快
        if (speed >= 350)
          speed -= 10;
      }
 
      //显示游戏结束情况
      outtextxy(ROW * (2 * SIZE) + 10, 200, "游戏结束");
      outtextxy(ROW * (2 * SIZE) + 10, 220, "您最终的游戏分数为");
      settextstyle(18, 0, "宋体");
      settextcolor(RGB(51, 89, 24));
      sprintf_s(ch, "%d", s);
      outtextxy(ROW * (2 * SIZE) + 40, 250, ch);
 
      //重新开始游戏，跳到again
      outtextxy(ROW * (2 * SIZE) + 10, 300, "按下空格键重新开始");
      key = _getch();
      while (1)
      {
        switch (key)
        {
        case 32:
          goto again;
          break;
        default:
          break;
        }
      }
        break;
    default:
      break;
    }
  }
  getchar();
  closegraph();
}