EasyX实例

先放代码，讲解后面再来填坑hh
#include<iostream>
#include<stdlib.h>
#include<graphics.h>
#include<conio.h>
#include<mmsystem.h>
#pragma comment(lib,"winmm.lib")
using namespace std;

//在main函数的while(1)语句中有5个函数，5个bool类型分别控制显示5个页面
bool start = true;
bool intro = false;
bool ask = false;
bool show = false;
bool algo = false;

//判断是否已选择了当前所在地
bool first = true;

//记录当前所在地，目的地
int now;
int to;

//记录将要展示的景点编号
int point;

//歌曲播放和暂停
int play_or_not = 0; //每次点击播放按钮时自动+1，为奇数时暂停播放，为偶数时播放音乐

//景点结构体数组
typedef struct Scenic_Spot{
	//outtextxy中只支持char类型的，string类型的不能用
	char name[20]; //名字
	char rec[100]; //简介
	char imgpath[20]; //可以在介绍景点信息时使用，但是有点卡，所以暂时
} Dest;
//用结构体数组来存景点的信息
Dest dest[15];

//相邻两景点的边结构体数组
typedef struct E
{
	int value;
	//char* p;
} Edge;
Edge e[20][20];

//选项框结构体数组
typedef struct Option_box
{
	int left;
	int top;
	int right;
	int down;
} OPb;
//用结构体数组来存选项框的四个坐标信息
OPb  opb[15];

//初始化
void init()
{
	//初始化名称
	strcat_s(dest[0].name, "汇学堂"), strcat_s(dest[0].rec, "各种重大表演活动，报告会，很新很舒适");
	//向char数组name中直接写入字符串
	strcat_s(dest[1].name, "知行书院"), strcat_s(dest[1].rec, "没去过，应该是个书院");
	strcat_s(dest[2].name, "雕塑园"), strcat_s(dest[2].rec, "好多雕塑，很好看");
	strcat_s(dest[3].name, "大学生活动中心"), strcat_s(dest[3].rec, "可以弹琴，一二楼很凉快，三楼很热，蚊子多");
	strcat_s(dest[4].name, "第六教学楼"), strcat_s(dest[4].rec, "很舒服的学习环境，就是有些小教室蚊子多");
	strcat_s(dest[5].name, "大礼堂"), strcat_s(dest[5].rec, "能容纳很多人，形势政策都在那上，但环境不是很好");
	strcat_s(dest[6].name, "碧云湖"), strcat_s(dest[6].rec, "没去过，应该是个湖");
	strcat_s(dest[7].name, "图书馆"), strcat_s(dest[7].rec, "想要的书都找得到");
	strcat_s(dest[8].name, "镜湖"), strcat_s(dest[8].rec, "在西校园，荷花很好看");
	strcat_s(dest[9].name, "计电学院"), strcat_s(dest[9].rec, "yyds");
	strcat_s(dest[10].name, "外国语学院"), strcat_s(dest[10].rec, "没去过，应该是个学院");
	strcat_s(dest[11].name, "邵逸夫楼"), strcat_s(dest[11].rec, "没去过，应该是个楼");
	strcat_s(dest[12].name, "西体育馆"), strcat_s(dest[12].rec, "羽毛球上课的地方");
	strcat_s(dest[13].name, "东体育馆"), strcat_s(dest[13].rec, "上台球课的时候去过");
	strcat_s(dest[14].name, "西26栋"), strcat_s(dest[14].rec, "快跑！");

	//边权重的初始化
	for (int i = 1; i <= 15; i++)
		for (int j = 1; j <= 15; j++)
			e[i][j].value = 0;
	e[1][1].value = 0, e[1][2].value = 8, e[1][6].value = 21, e[1][9].value = 6;
	e[2][1].value = 8, e[2][2].value = 0, e[2][5].value = 13, e[2][9].value = 4, e[2][10].value = 5;
	e[3][3].value = 0, e[3][11].value = 11, e[3][15].value = 25;
	e[4][4].value = 0, e[4][5].value = 3, e[4][7].value = 18, e[4][15].value = 14;
	e[5][2].value = 13, e[5][4].value = 3, e[5][5].value = 0, e[5][13].value = 6;
	e[6][1].value = 21, e[6][6].value = 0, e[6][12].value = 5, e[6][14].value = 9;
	e[7][4].value = 18, e[7][7].value = 0, e[7][10].value = 6;
	e[8][8].value = 0, e[8][10].value = 15;
	e[9][1].value = 6, e[9][2].value = 4, e[9][9].value = 0, e[9][12].value = 3, e[9][13].value = 1;
	e[10][2].value = 5, e[10][7].value = 6, e[10][8].value = 15, e[10][10].value = 0, e[10][11].value = 4, e[10][14].value = 6;
	e[11][3].value = 11, e[11][10].value = 4, e[11][11].value = 0;
	e[12][6].value = 5, e[12][9].value = 3, e[12][12].value = 0;
	e[13][5].value = 6, e[13][9].value = 1, e[13][13].value = 0;
	e[14][6].value = 9, e[14][10].value = 6, e[14][14].value = 0;
	e[15][3].value = 25, e[15][4].value = 14, e[15][15].value = 0;
}

//基于Dijkstra算法找出以s为起点，v为终点的单源最短路径
void Algo(int s, int v)
{
	//路径查询结果背景
	IMAGE img;
	loadimage(&img, _T("./5.png"), 640, 480);
	putimage(0, 0, &img);

	//初始化各变量
	int dist[20]; //记录每个节点距离起点的距离
	int pre[20]; // 记录该点由哪个路径可达
	bool view[20]; //True表示已经确定最短路
	int length = 0;
	int path[20];

	for (int i = 1; i <= 15; i++)
	{
		dist[i] = 99999; //每个点到s点的距离设为99999
		pre[i] = -1; //每个点的前一个点初始化为-1
		view[i] = false;
	}
	dist[s] = 0; //起点距离自己的距离为零 und!
	pre[s] = s;

	//迭代n次，每次可以确定一个点到起点的最短路
	for (int i = 0; i < 15; i++)
	{
		int t = -1; //初始化标记
		for (int j = 1; j <= 15; j++) {
			//不在s集合(!view[j])，并且&&
			//如果没有更新过(t == -1)，则进行更新， 或者发现更短的路径(dist[j] < dist[t])，则进行更新
			if (!view[j] && (t == -1 || dist[j] < dist[t])) {
				t = j;
			}
		}

		//加入到s集合中
		view[t] = true;

		//找到了距离最小的点t，并用最小的点t去更新其他的点到起点的距离
		for (int j = 1; j <= 15; j++)
		{
			// dist[j] = min(dist[j], dist[t] + edges[t][j].value);
			if (e[t][j].value != 0)
			{
				if (dist[t] + e[t][j].value < dist[j]) //如果刚找到的点能够更新该点的距离
				{
					dist[j] = dist[t] + e[t][j].value; //更新距离
					pre[j] = t; //更新路径
				}
			}
		}
	}

	for (int i = v; pre[i] != i; i = pre[i])
	{
		path[length++] = i;
	}
	path[length] = s;

	settextstyle(30, 0, _T("微软雅黑"));
	settextcolor(RGB(0, 205, 0));
	outtextxy(0, 20, _T("已为您找到最短路径："));

	settextstyle(30, 0, _T("微软雅黑"));
	settextcolor(RGB(0, 205, 0));
	int h = 0;
	for (int i = length; i >= 0; i--)
	{
		outtextxy(300, h, dest[path[i] - 1].name);
		h += 40;
	}

	char tmp[5];
	snprintf(tmp, sizeof(tmp), "%d" ,dist[v]);
	outtextxy(300, h, _T("共需行走："));
	outtextxy(400, h, tmp);
	outtextxy(450, h, _T("(公里)"));
	//返回按钮
	rectangle(520, 410, 620, 470);
	rectangle(525, 415, 615, 465);
	settextcolor(RGB(80, 96, 109));
	settextstyle(40, 10, _T("微软雅黑"));
	outtextxy(548, 418, _T("返回"));

	//点击返回
	MOUSEMSG msg = GetMouseMsg();
	if (msg.x >= 520 && msg.x <= 620 && msg.y >= 410 && msg.y <= 470)
	{
		setfillcolor(RGB(255, 45, 82));
		fillrectangle(525, 415, 615, 465);
		outtextxy(548, 418, _T("返回"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			ask = true;
			algo = false;
		}
	}
}

//展示景点
void Show()
{
	//展示背景
	IMAGE img1,img2;
	loadimage(&img1, _T("./4.png"), 640, 480);
	putimage(0, 0, &img1);

	//景点图片，放了太卡，暂时先不放了
	//loadimage(&img2, dest[point].imgpath, 400, 300);
	//putimage(200, 100, &img2);

	//简介内容
	settextstyle(40, 0, _T("微软雅黑"));
	settextcolor(RGB(238, 0, 0));
	outtextxy(50, 20, dest[point].name);
	settextcolor(RGB(72, 118, 255));
	settextstyle(20, 0, _T("微软雅黑"));
	outtextxy(50, 70, _T("简介："));
	outtextxy(90, 70, dest[point].rec);

	//返回按钮
	rectangle(520, 410, 620, 470);
	rectangle(525, 415, 615, 465);
	settextcolor(RGB(80, 96, 109));
	settextstyle(40, 10, _T("微软雅黑"));
	outtextxy(548, 418, _T("返回"));

	//点击返回
	MOUSEMSG msg = GetMouseMsg();
	if (msg.x >= 520 && msg.x <= 620 && msg.y >= 410 && msg.y <= 470)
	{
		setfillcolor(RGB(255, 45, 82));
		fillrectangle(525, 415, 615, 465);
		outtextxy(548, 418, _T("返回"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			show = false;
			intro = true;
		}
	}
}

//跳出弹窗询问是否关闭
void end()
{
	HWND hnd = GetHWnd();
	int isok = MessageBox(hnd, "您确定要退出校园导航吗", "询问", MB_OKCANCEL); //弹窗
	if (isok == IDOK)
		closegraph();
}

//景点选择
int select()
{
	settextstyle(20, 0, _T("微软雅黑"));
	setfillcolor(RGB(127, 255, 212));
	MOUSEMSG msg = GetMouseMsg();
	for (int i = 0; i < 15; i++)
	{
		if (msg.x >= opb[i].left && msg.x <= opb[i].right && msg.y >= opb[i].top && msg.y <= opb[i].down)
		{
			fillrectangle(opb[i].left+5, opb[i].top+5, opb[i].right-5, opb[i].down-5);
			outtextxy(opb[i].left + 10, opb[i].top + 5, dest[i].name);
			if (msg.uMsg == WM_LBUTTONDOWN && intro == true) //因为有两个函数共同调用select，所以要判断一下当前处于的是哪一个页面
			{
				point = i;
				show = true; //在main函数中开启Show界面
				intro = false; //在main函数中关闭intro界面
				Show();
			}
			else if (msg.uMsg == WM_LBUTTONDOWN && ask == true)
			{
				if (first == true)
				{
					now = i + 1; //迎合算法中的景点编号(我的是从0开始，家弘的是从1开始)
					first = false; //说明第一个点已选择 
				}
				else if (first == false)
				{
					to = i + 1;
					ask = false;
					algo = true;
					//跳转到algo页面，同时main函数中的Algo()通过全局变量now,to来接收两点编号
				}
			}
		}
	}
	return 0;
}

//景点绘画
void Draw()
{
	//大方框线(框内包含所有的景点名)
	setlinecolor(RGB(58, 95, 205));
	rectangle(200, 50, 630, 400);

	int top = 60, down = 100;
	int index = 0; //景点编号
	//数字选项绘画(五行三列)
	for (int i = 0; i < 5; i++)
	{
		int left = 210, right = 330;
		for(int j = 0; j < 3; j++)
		{
			rectangle(left, top, right, down);
			//在绘画景点选项框的同时，记录这些框的四个坐标
			opb[index].left = left;
			opb[index].top = top;
			opb[index].right = right;
			opb[index].down = down;
			//cout << left << " " << top << " " << right << " " << down << endl;
			rectangle(left + 5, top + 5, right - 5, down - 5);
			settextcolor(RGB(255, 140, 0));
			settextstyle(20, 0, _T("微软雅黑"));
			outtextxy(left + 10, top + 5, dest[index].name);
			index++;
			int width = 120;
			left = right + 20, right = left + width;
		}
		int height = 40;
		top = down + 30, down = top + height;
	}

}

//景点介绍界面
void Introduce()
{
	//咨询背景
	IMAGE img;
	loadimage(&img, _T("./2.png"), 640, 480);
	putimage(0, 0, &img);

	//当前标题
	setbkmode(TRANSPARENT);
	settextcolor(RGB(240, 86, 84));
	settextstyle(30, 0, _T("微软雅黑"));
	outtextxy(270, 20, _T("请点击您想咨询的景点信息"));

	//大方框线及其内容
	Draw();

	//返回按钮
	rectangle(520, 410, 620, 470);
	rectangle(525, 415, 615, 465);
	settextcolor(RGB(80, 96, 109));
	settextstyle(40, 10, _T("微软雅黑"));
	outtextxy(548, 418, _T("返回"));

	//选择景点，并点击查询
	select();

	//鼠标点击返回
	settextstyle(40, 10, _T("微软雅黑"));
	MOUSEMSG msg = GetMouseMsg();
	if (msg.x >= 520 && msg.x <= 620 && msg.y >= 410 && msg.y <= 470)
	{
		setfillcolor(RGB(255, 45, 82));
		fillrectangle(525, 415, 615, 465);
		outtextxy(548, 418, _T("返回"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			start = true;
			intro = false;
		}
	}

}

//最短路径界面
void Ask()
{
	//路径查询背景
	IMAGE img;
	loadimage(&img, _T("./3.png"), 640, 480);
	putimage(0, 0, &img);

	//当前标题
	setbkmode(TRANSPARENT);
	settextcolor(RGB(240, 86, 84));
	settextstyle(30, 0, _T("微软雅黑"));
	outtextxy(360, 20, _T("景点清单"));

	//选择提示
	if (first == true)
	{
		settextcolor(RGB(255, 99, 71));
		settextstyle(30, 0, _T("微软雅黑"));
		outtextxy(0, 0, _T("请选择您当前所在的位置 :)"));
	}
	else if(first == false)
	{
		settextcolor(RGB(255, 99, 71));
		settextstyle(30, 0, _T("微软雅黑"));
		outtextxy(0, 0, _T("当前位置："));
		settextcolor(RGB(138, 43, 226));
		outtextxy(100, 0, dest[now-1].name); //为了和家弘的景点编号对应
		settextcolor(RGB(255, 99, 71));
		outtextxy(0, 30, _T("请选择您的目的地"));
	}

	//大方框线及其内容
	Draw();

	//选择
	select();

	//返回按钮
	rectangle(520, 410, 620, 470);
	rectangle(525, 415, 615, 465);
	settextcolor(RGB(80, 96, 109));
	settextstyle(40, 10, _T("微软雅黑"));
	outtextxy(548, 418, _T("返回"));

	//点击返回
	MOUSEMSG msg = GetMouseMsg();
	if (msg.x >= 520 && msg.x <= 620 && msg.y >= 410 && msg.y <= 470)
	{
		setfillcolor(RGB(255, 45, 82));
		fillrectangle(525, 415, 615, 465);
		outtextxy(548, 418, _T("返回"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			start = true;
			ask = false;
			first = true;
		}
	}
}

//主菜单
void Menu()
{
	//菜单背景
	IMAGE img;
	loadimage(&img, _T("./1.png"), 640, 480);
	putimage(0, 0, &img);
	//标题
	setbkmode(TRANSPARENT);
	settextcolor(RGB(240,86,84));
	settextstyle(50, 0, _T("微软雅黑"));
	//wchar_t wt[] = L"广西大学校园导游咨询";
	//outtextxy(200, 20, wt);
	outtextxy(200, 20, _T("广西大学校园导游咨询"));
	
	//选项方框
	setlinecolor(BLACK);

	//退出
	rectangle(500, 300, 600, 360);
	rectangle(505, 305, 595, 355);

	//景点介绍
	rectangle(50, 300, 150, 360);
	rectangle(55, 305, 145, 355);

	//路径查询
	rectangle(280, 300, 380, 360);
	rectangle(285, 305, 375, 355);

	//方框内容
	settextcolor(RGB(80, 96, 109));
	settextstyle(40, 10, _T("微软雅黑"));
	outtextxy(528, 308, _T("退出"));
	outtextxy(58, 308, _T("景点咨询"));
	outtextxy(286, 308, _T("路径查询"));

	//BGM播放窗口
	POINT pts[] = { {300,430},{320,445},{300,460} };
	polygon(pts, 3);
	rectangle(290, 420, 330, 470);


	MOUSEMSG msg = GetMouseMsg();

	if (msg.x >= 500 && msg.x <= 595 && msg.y >= 300 && msg.y <= 360)
	{
		setfillcolor(RGB(255,45,82));
		fillrectangle(505, 305, 595, 355);
		outtextxy(528, 308, _T("退出"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			mciSendString("close bgm", 0, 0, 0);
			end();
		}
	}
	else if (msg.x >= 50 && msg.x <= 150 && msg.y >= 300 && msg.y <= 360)
	{
		setfillcolor(RGB(33, 167, 171));
		fillrectangle(55, 305, 145, 355);
		outtextxy(58, 308, _T("景点咨询"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			start = false;
			intro = true;
		}
	}
	else if (msg.x >= 280 && msg.x <= 380 && msg.y >= 300 && msg.y <= 360)
	{
		setfillcolor(RGB(254, 241, 67));
		fillrectangle(285, 305, 375, 355);
		outtextxy(286, 308, _T("路径查询"));
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			start = false;
			ask = true;
		}
	}
	else if(msg.x >= 290 && msg.x <= 330 && msg.y >= 420 && msg.y <= 470)
	{
		setfillcolor(RGB(0, 204, 221));
		fillpolygon(pts, 3);
		if (msg.uMsg == WM_LBUTTONDOWN)
		{
			if (play_or_not % 2 == 0)  mciSendString("play bgm", 0, 0, 0);
			if (play_or_not % 2 != 0)  mciSendString("pause bgm", 0, 0, 0);
			play_or_not++;
		}
	}
}

int main()
{
	initgraph(640, 480, EW_SHOWCONSOLE);
	HWND hnd = GetHWnd();
	SetWindowText(hnd, "活着就是为了樱岛麻衣");
	mciSendString("open ./1.wav alias bgm", 0, 0, 0);

	init();
	while (1)
	{
		BeginBatchDraw();
		cleardevice();
		//开始菜单逻辑顺序
		if (start)
			Menu();
		else
		{
			if (intro)
				Introduce();
			if (ask)
				Ask();
			if (show)
				Show();
			if (algo)
				Algo(now, to);
		}
		EndBatchDraw();
	}
	_getch();
	closegraph();
	return 0;
}
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c++ 小游戏
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