用纯C++代码写一款精美的FlappyBird

先上效果图。

游戏的实现主要基于EasyX图形库，有暂停界面、结束界面、游戏音效、游戏存档，并最终集成为一个exe文件。可谓麻雀虽小，五脏俱全 。这里先放出源代码和下载链接，以后有时间会以此为例写一个C++小游戏开发教程系列。

链接：https://pan.baidu.com/s/1sBPD-LTGCTa7bfkI1RloXg 
提取码：8848

组件类及其定义：

#pragma once
#include
#include
using namespace std;
typedef pair BVec;

class Object
{
	int _x;
	int _y;			//组件基类的四个成员，逻辑坐标(x,y)，运动速度v，加速度g，贴图ptr、掩码ym_ptr
	int _width;
	int _height;
	BVec _v;
	BVec _g;
	IMAGE _ptr;
	IMAGE ym_ptr;
public:
	Object(LPCTSTR path, LPCTSTR ympath, int width, int height, int posx= 0, int posy= 0);//构造函数
	Object(LPCTSTR path,  int width, int height, int posx = 0, int posy = 0);
	Object(LPCTSTR path);
	Object():_x(0),_y(0),_width(0),_height(0),_v(make_pair(0,0)),_g(make_pair(0,0)){}
	int x()const{ return _x; };
	int y()const { return _y; };
	BVec v()const { return _v; };   //数据成员操作接口
	BVec g()const { return _g; }
	int width()const { return _width; };
	int height()const { return _height; };
	void setx(int newx) { _x = newx; };
	void sety(int newy) { _y = newy; };
	void setv(int x, int y) { _v.first = x; _v.second = y; };
	void setvx(int x) { _v.first = x; };
	void setvy(int y) { _v.second = y; }
	void setg(BVec newg) { _g = newg; };
	void setptr(IMAGE newptr) { _ptr = newptr; }
	void setptr_ym(IMAGE newptr_ym) { ym_ptr = newptr_ym; }
	void setwidth(int newwidth) { _width = newwidth; }
	void setheight(int newheight) { _height = newheight; }
    void move();//此方法更新组件位置。
	void show_n()const; //显示组件，不显示掩码
	void show()const;  //显示组件和掩码
	~Object() { };
	
};

#include "Object.h"
Object::Object(LPCTSTR path,LPCTSTR ympath, int width, int height, int posx , int posy )
{
	loadimage(&_ptr, _T("PNG"), path, width, height);
	loadimage(&ym_ptr,_T("PNG"), ympath, width, height);
	_x = posx;
	_y = posy;
	_width = width;
	_height = height;
	_v.first = 0;
	_v.second = 0;
	_g.first = 0;
	_g.second = 0;
}
Object::Object(LPCTSTR path, int width, int height, int posx , int posy )
{
	loadimage(&_ptr, _T("PNG"),path, width, height);
	_x = posx;
	_y = posy;
	_width = width;
	_height = height;
	_v.first = 0;
	_v.second = 0;
	_g.first = 0;
	_g.second = 0;
}
Object::Object(LPCTSTR path)
{
	loadimage(&_ptr, path);
	_x = 0;
	_y = 0;
	_width = _ptr.getwidth();
	_height = _ptr.getheight();
	_v.first = 0;
	_v.second = 0;
	_g.first = 0;
	_g.second = 0;
}
void Object::move()
{
	_x += _v.first;
	_y += _v.second;
	_v.first += _g.first;
	_v.second += _g.second;
}
void Object::show_n()const
{
	putimage(_x, _y, &_ptr); 
}
void Object::show()const
{
	putimage(_x, _y, &ym_ptr, SRCAND);
	putimage(_x, _y, &_ptr, SRCPAINT);
}

 角色类及其定义

#pragma once
#include "Object.h"
#include
class bird :        //角色类继承组件类（游戏角色只有小鸟，故名为小鸟类）
    public Object   //添加动作序列、死亡贴图
{
    vector seq;
    vector seq_ym;
    IMAGE die;
    IMAGE die_ym;
    int index = 0;
public:
    bird();
    void add_seq(LPCTSTR path,LPCTSTR ympath);//添加动作序列
    void add_die(LPCTSTR path, LPCTSTR ympath);//添加死亡贴图
    void select_next();//切换动作
    IMAGE& getdie() { return die; }
    IMAGE& getdie_ym() { return die_ym; }
 };

#include "bird.h"
#include "GamePragma.h"
#include
using std::make_pair;
void bird::add_seq(LPCTSTR path,LPCTSTR ympath)
{
	IMAGE img,ym;
	loadimage(&img,_T("PNG"), path);
	loadimage(&ym, _T("PNG"),ympath);
	seq.push_back(img);
	seq_ym.push_back(ym);
	setptr(seq.back());
	setptr_ym(seq_ym.back());
	setwidth(img.getwidth());
	setheight(img.getheight());
}
void bird::select_next()
{
	int len = seq.size();
	if (index == len - 1)
	{
		index = 0;
	}
	else index++;
	setptr(seq[index]);
	setptr_ym(seq_ym[index]);
}
bird::bird()
{
	setg(make_pair(0, gravity));
	setx(100);
	sety(200);
}
void bird::add_die(LPCTSTR path, LPCTSTR ympath)
{
	loadimage(&die, _T("PNG"), path);
	loadimage(&die_ym,_T("PNG"), ympath);
}

障碍物类及其实现

#pragma once
#include "Object.h"
class Tube :        //管道类继承组件类，添加方向、和小鸟是否通过。
    public Object
{
    int direction;
    bool if_pass ;
public:
    Tube(LPCTSTR path, LPCTSTR ympath, int width, int height, int posx, int posy,int d);
    int getd()const { return direction; }
    bool getp() { return if_pass; }
    void setp(bool p) { if_pass = p; }
};

#include "Tube.h"
Tube::Tube(LPCTSTR path, LPCTSTR ympath, int width, int height, int posx, int posy, int d) :
	Object(path, ympath, width, height, posx, posy)
{
	direction = d;
	if_pass = false;
}

 游戏参数定义

#pragma once
#define WinWidth 800
#define WinHeight 600
#define gravity 0.5
#define BirdUpdate 5
#define TubeWidth 90
#define TubeSpeed -3.5
#define BirdJump -9
#define TubeGenerateSpeed 85
#define CloudSpeed -5

用到的函数

含游戏运作需要的函数
#pragma once
#include "Object.h"
#include "GamePragma.h"
#include
#include
#include "bird.h"
#include"Tube.h"
#include
#include
#include
using namespace std;
void PlayBg(Object& bg1,Object& bg2)//播放背景
{
	bg1.show_n();
	bg2.setx(bg1.x() + WinWidth);
	bg2.show_n();
	bg1.move();
	bg2.move();
	if (bg1.x() == -WinWidth)bg1.setx(0);
}
void PlayCloud(vector