帮忙看看缺少了什么头文件，不能执行

#ifndef GAMEWORLD_H
#define GAMEWORLD_H
class GameWorld // 游戏类，控制整个游戏过程
{
friend class Display;
friend class Sprite;
friend class CollisionSystem;
HWNDGameWindow;
static const int MsPerFrame;
double kFPS;
struct {
int LastTime, FrameCount, FPS;
} FPS;
int BufKey, CurKey;
int Level;
Display
*pScreen;
Player
*pPlayer;
BulletSystem*pPlayerBulletSystem, *pEnermyBulletSystem;
EnermySystem
*pEnermySystem;
CollisionSystem *pCollisionSystem;
void DrawSprite(Sprite *pSprite);
void UpdateFPS();
void ShowInfomation();
double GetKFPS() { return kFPS; }
public:
static const int Width, Height;
static const double PI;
int Time;
GameWorld( HWND);
~GameWorld();
void Update();
void KeyDown(WPARAM KeyCode);
void KeyUp(WPARAM KeyCode);
void EnermyFire(Enermy *pEnermy);
void PlayerFire(Player *pPlayer);
void ResetPlayer();
};
#endif
#include "stdafx.h"
// 常数定义
const int GameWorld::Width=640;
const int GameWorld::Height=480;
const int GameWorld::MsPerFrame=20;
const double GameWorld::PI=3.1415926535897932;
// 构造函数
GameWorld::GameWorld(HWND hwnd)
:GameWindow(hwnd)
{
Time=GetTickCount();
ZeroMemory(&FPS, sizeof(FPS));
FPS.LastTime = Time;
kFPS = 1.0;
srand(time(0));
BufKey=0;
CurKey=0;
Level = 1;
pScreen= new Display(this);
pPlayer= new Player(this, Width/2, Height/2);
pPlayerBulletSystem= new BulletSystem(this);
pEnermyBulletSystem= new BulletSystem(this);
pEnermySystem= new EnermySystem(this);
pCollisionSystem= new CollisionSystem(this）
}
// 释构函数
GameWorld::~GameWorld()
{
delete pScreen;
}
// 刷新游戏
void GameWorld::Update()
{
int t=GetTickCount();
if( t-Time < MsPerFrame
return;
Time=t;
// 难度升级
if(pPlayer->Score >= Level*300)
{
pEnermySystem->AddDifficulty();
Level++;
}
// 清空屏幕
pScreen->Clear();
pCollisionSystem->Update();
pEnermyBulletSystem->Update();
pPlayerBulletSystem->Update();
pEnermySystem->Update();
pPlayer->Update();
UpdateFPS();
ShowInfomation();
pScreen->DrawAllToScreen();
}
// 刷新帧速率
void GameWorld::UpdateFPS()
{
FPS.FrameCount++;
if( Time-FPS.LastTime >= 1000 )
{
FPS.FPS = FPS.FrameCount;
FPS.FrameCount = 0;
FPS.LastTime=Time;
kFPS = (double)1000 / ( MsPerFrame * FPS.FPS )
}
}
// 显示信息
void GameWorld::ShowInfomation()
{
HDC hdc = pScreen->GetOffscreenDC();
ostringstream info;
info << "帧速率:" << FPS.FPS <<" (Max:50 " << "k=" << kFPS <<")";
info << " 生命:" << pPlayer->Life <<" 武器:";
switch( pPlayer->BulletType )
{
case 0:
info << "机关炮";
break;
case 1:
info << "导弹　";
break;
case 2:
info << "散弹枪";
break;
}
info << " 杀敌:" << pPlayer->KillEnermy << " 分数:" << pPlayer->Score;
info << " 级数:" << Level;
SetBkMode(hdc, TRANSPARENT );
SetTextColor(hdc, RGB(100, 100, 100));
TextOut(hdc, 7, 7, info.str().c_str(), info.str().length() );
SetTextColor(hdc, RGB(0, 255, 255));
TextOut(hdc, 5, 5, info.str().c_str(), info.str().length() );
SetTextColor(hdc, RGB(0, 0, 0));
}
// 发射子弹
void GameWorld::EnermyFire(Enermy *pEnermy)
{
pEnermyBulletSystem->FireHappened(pEnermy->BulletType, pEnermy->GetX()+pEnermy->w/2, pEnermy->GetY()+pEnermy->h/2, pEnermy->dx, pEnermy->dy);
}
void GameWorld::PlayerFire(Player *pPlayer)
{
pPlayerBulletSystem->FireHappened(pPlayer->BulletType, pPlayer->GetX()+pPlayer->w/2, pPlayer->GetY()+pPlayer->h/2, pPlayer->dx, pPlayer->dy);
}
// 画角色
void GameWorld::DrawSprite(Sprite *pSprite)
{
pScreen->DrawToOffscreen(pSprite->GetX(), pSprite->GetY(), pSprite->w, pSprite->h, pSprite->sx, pSprite->sy, false);
}
// KeyDown
void GameWorld::KeyDown(WPARAM KeyCode)
{
switch(KeyCode)
{
case VK_RIGHT:
case VK_UP:
case VK_DOWN:
if(KeyCode==CurKey || KeyCode==BufKey) return;
// 重复的键盘消息，忽略
if(BufKey && CurKey) return;
// 同时按3个方向键，非法输入，忽略
BufKey=CurKey;
CurKey=KeyCode;
if( BufKey==VK_LEFT && CurKey==VK_UP || BufKey==VK_UP && CurKey==VK_LEFT )
pPlayer->Action( Player::GO_LEFT_UP );
else if( BufKey==VK_LEFT && CurKey==VK_DOWN || BufKey==VK_DOWN && CurKey==VK_LEFT )
pPlayer->Action( Player::GO_LEFT_DOWN );
else if( BufKey==VK_RIGHT && CurKey==VK_UP || BufKey==VK_UP && CurKey==VK_RIGHT )
pPlayer->Action( Player::GO_RIGHT_UP );
else if( BufKey==VK_RIGHT && CurKey==VK_DOWN || BufKey==VK_DOWN && CurKey==VK_RIGHT )
pPlayer->Action( Player::GO_RIGHT_DOWN );
else
pPlayer->Action( (Player::ACTION) (Player::GO_LEFT + KeyCode - VK_LEFT) );
break;
case VK_SPACE:
pPlayer->Action(Player::START_FIRING);
break;
case VK_TAB:
pPlayer->Action(Player::CHANGE_WEAPON);
break;
}
}
// KeyUp
void GameWorld::KeyUp(WPARAM KeyCode)
{
if(KeyCode==CurKey)
{
CurKey=0;
if(BufKey)
{
CurKey=BufKey;
BufKey=0;
pPlayer->Action( ( Player::ACTION )( CurKey - VK_LEFT ) );
}
Else
{
pPlayer->Action( Player::STOP_MOVING );
}
}
else if(KeyCode==BufKey)
BufKey=0;
else if(KeyCode==VK_SPACE)
pPlayer->Action(Player::STOP_FIRING);
}
// 重置角色
void GameWorld::ResetPlayer()
{
delete pPlayer;
pPlayer = new Player( this, Width / 2, Height / 2 );
Level = 1;
pEnermySystem->ResetDifficulty();
}