[C++知识库]c语言井字游戏

此代码需要EasyX图形库
EasyX下载地址

界面绘制：

void menu()				//画黑线
{
	int y = HIGH / 3;
	int x = WIDE / 3;

	setlinecolor(BLACK);
	fillrectangle(0, y, WIDE, y + 1);
	fillrectangle(0, y + y, WIDE, y + y - 1);
	fillrectangle(x, 0, x + 1, HIGH);
	fillrectangle(x + x, 0, x + x + 1, HIGH);
}

判断胜利条件：

int judge()							//判断双方是否获胜
{
	int p = 0;
	int t = 0;
	int count = 0, count1 = 0;
	int sum = 0, sum1 = 0;
	for (int x = 0;x < 3;x++) {				//横
		if (map[x][0] == 1) {
			if (map[x][1] == 1) {
				if (map[x][2] == 1) {
					p = 1;
				}
			}
		}
		else if (map[x][0] == 2) {
			if (map[x][1] == 2)
				if (map[x][2] == 2)
					t = 1;
		}
	}
	for (int x = 0;x < 3;x++) {					//列
		if (map[0][x] == 1) {
			if (map[1][x] == 1)
				if (map[2][x] == 1)
					p = 1;
		}
		else if (map[0][x] == 2) {
			if (map[1][x] == 2)
				if (map[2][x] == 2)
					t = 1;
		}
	}
	for (int x = 0;x < 3;x++) {						//对角线
		if (map[x][x] == 1) {
			count++;
		}
		else if (map[x][x] == 2) {
			sum++;
		}
	}
	for (int x = 0, y = 2;x < 3;x++, y--) {						//对角线
		if (map[x][y] == 1)
			count1++;
		if (map[x][y] == 2)
			sum1++;
	}
	if (count == 3||count1==3)
		p = 1;
	else if (sum == 3||sum1==3)
		t = 1;
	if (p == 1)
		MessageBox(0, _T("方块赢 按两下空格重来"), _T("hello"), 0);
	else if (t == 1)
		MessageBox(0, _T("圆赢 按两下空格重来"), _T("hello"), 0);
	if (p == 1 || t == 1) return 1;
	return 0;
}

根据鼠标点击绘制图案（写的很粗暴）：

void Draw(MOUSEMSG m,bool keydown)				//画方块
{
	int mx = WIDE / 3;
	int my = HIGH / 3;
	int interval = WIDE / 12;
	if (key % 2 == 0) {
		setfillcolor(GREEN);
	}
	else {
		setfillcolor(BLUE);
	}

	if (keydown) {
		if (m.x < mx) {									//右列
			if (m.y < my) {						//左上角
				if (key % 2 == 0 && a != 1) {
					solidcircle(mx / 2, my / 2, 50);
					map[0][0] = 2;
					a = 1;
					key++;
				}
				else if (a != 1) {
					fillrectangle(interval, 10, interval + interval, 130);
					map[0][0] = 1;
					a = 1;
					key++;
				}
			}
			else if (m.y > my && m.y < my + my) {		//左中间
				if (key % 2 == 0 && d != 1) {
					solidcircle(mx / 2, HIGH / 2, 50);
					map[1][0] = 2;
					d = 1;
					key++;
				}
				else if (d != 1) {
					fillrectangle(interval, my + 10, interval + interval, my + 130);
					map[1][0] = 1;
					d = 1;
					key++;
				}
			}
			else if (m.y > my + my) {				//左下角
				if (key % 2 == 0 && g != 1) {
					solidcircle(mx / 2, my + my + my / 2, 50);
					map[2][0] = 2;
					g = 1;
					key++;
				}
				else if (g != 1) {
					fillrectangle(interval, my + 10 + my, interval + interval, my + my + 130);
					map[2][0] = 1;
					g = 1;
					key++;
				}
			}
		}
		else if (m.x > mx && m.x < mx + mx) {					//中间
			if (m.y < my) {						//中上角
				if (key % 2 == 0 && b != 1) {
					solidcircle(WIDE / 2, my / 2, 50);
					map[0][1] = 2;
					b = 1;
					key++;
				}
				else if (b != 1) {
					fillrectangle(interval+mx, 10, mx+interval + interval, 130);
					map[0][1] = 1;
					b = 1;
					key++;
				}
			}
			else if (m.y > my && m.y < my + my) {		//正中间
				if (key % 2 == 0 && e != 1) {
					solidcircle(WIDE / 2, HIGH / 2, 50);
					map[1][1] = 2;
					e = 1;
					key++;
				}
				else if (e != 1) {
					fillrectangle(mx+interval, my + 10, mx+interval + interval, my + 130);
					map[1][1] = 1;
					e = 1;
					key++;
				}
			}
			else if (m.y > my + my) {				//中下角
				if (key % 2 == 0 && h != 1) {
					solidcircle(WIDE / 2, my + my + my / 2, 50);
					map[2][1] = 2;
					h = 1;
					key++;
				}
				else if (h != 1) {
					fillrectangle(interval+mx, my + 10 + my, mx+interval + interval, my + my + 130);
					map[2][1] = 1;
					h = 1;
					key++;
				}
			}
		}
		else if (m.x > mx + mx) {								//右边
			if (m.y < my) {						//右上角
				if (key % 2 == 0 && c != 1) {
					solidcircle(mx / 2+mx+mx, my / 2, 50);
					map[0][2] = 2;
					c = 1;
					key++;
				}
				else if (c != 1) {
					fillrectangle(interval + mx+mx, 10, mx+mx + interval + interval, 130);
					map[0][2] = 1;
					c = 1;
					key++;
				}
			}
			else if (m.y > my && m.y < my + my) {		//右中间
				if (key % 2 == 0 && f != 1) {
					solidcircle(mx / 2 + mx + mx, HIGH / 2, 50);
					map[1][2] = 2;
					f = 1;
					key++;
				}
				else if (f != 1) {
					fillrectangle(mx + interval+mx, my + 10, mx+mx + interval + interval, my + 130);
					map[1][2] = 1;
					f = 1;
					key++;
				}
			}
			else if (m.y > my + my) {				//右下角
				if (key % 2 == 0 && i != 1) {
					solidcircle(mx / 2 + mx + mx, my + my + my / 2, 50);
					map[2][2] = 2;
					i = 1;
					key++;
				}
				else if (i != 1) {
					fillrectangle(interval + mx+mx, my + 10 + my, mx+mx + interval + interval, my + my + 130);
					map[2][2] = 1;
					i = 1;
					key++;
				}
			}
		}
	}
}

最后的拼接：

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

constexpr auto WIDE = 640;
constexpr auto HIGH = 480;
int key = 1;
int a=0, b = 0, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = 0;			//重复按下条件
int map[3][3];

void menu();
void Draw(MOUSEMSG m,bool keydown);
int judge();

int main()
{
	MOUSEMSG m;								//定义鼠标结构体
	bool keydown = false;
	int crux = 0;
	initgraph(WIDE, HIGH);
	setbkcolor(WHITE);
	clearcliprgn();
	menu();
	for (int x = 0;x < 3;x++) {
		for (int y = 0;y < 3;y++) {
			map[x][y] = 0;
		}
	}
	while (1) {
		m = GetMouseMsg();						//获取(监听)鼠标消息
		switch (m.uMsg) {
		case WM_LBUTTONDOWN:
			keydown = true;
			break;
		case WM_LBUTTONUP:
			keydown = false;
			break;
		}
		Draw(m, keydown);
		crux = judge();
		if (_kbhit()||crux==1) {				//按空格重新绘制
			char word;
			word = _getch();
			if (word == ' '||crux==1) {
				a = 0, b = 0, c = 0, d = 0, e = 0, f = 0, g = 0, h = 0, i = 0;
				clearcliprgn();
				menu();
				key = 1;
				for (int x = 0;x < 3;x++) {
					for (int y = 0;y < 3;y++) {
						map[x][y] = 0;
					}
				}
				crux = 0;
			}
		}
	}
	
	system("pause");								//防止闪屏
	return 0;
}