dx9_2d_demo_game directx9实现2D游戏例程 Windows Develop

//----------------------------------------------------------------------------- // Name: dx9_2d_demo_game.cpp // Author: Kevin Harris (kevin@codesampler.com) // Last Modified: 10/04/04 // Description: 2D Sample game written in DirectX 9.0 // Controls: Use the arrow keys to move and the space bar to shoot! //----------------------------------------------------------------------------- #define STRICT #define WIN32_LEAN_AND_MEAN #define INITGUID #define DIRECTINPUT_VERSION 0x0800 #include <d3d9.h> #include <d3dx9.h> #include <dinput.h> #include <windows.h> #include <mmsystem.h> #include "resource.h" #include "sprite.h" #include <list> using namespace std; //----------------------------------------------------------------------------- // SYMBOLIC CONSTANTS //----------------------------------------------------------------------------- const int SCREEN_WIDTH = 800; const int SCREEN_HEIGHT = 600; const int SCREEN_BPP = 16; const int TOTAL_STARS = 100; const int TOTAL_PARTICLES = 250; const int SHIP_SPEED = 5; //----------------------------------------------------------------------------- // MACROS //----------------------------------------------------------------------------- #define SAFE_DELETE(p) { if(p) { delete (p); (p)=NULL; } } #define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } } #define KEYDOWN(name,key) (name[key] & 0x80) //----------------------------------------------------------------------------- // GLOBALS //----------------------------------------------------------------------------- HWND g_hWnd = NULL; LPDIRECT3D9 g_pD3D = NULL; LPDIRECT3DDEVICE9 g_pd3dDevice = NULL; LPDIRECTINPUT8 g_lpdi = NULL; LPDIRECTINPUTDEVICE8 g_pKeyboard = NULL; RECT g_rcWindow; RECT g_rcViewport; RECT g_rcScreen; BOOL g_bWindowed = true; BOOL g_bActive = false; DWORD g_dwLastFireTick = 0; int g_nShipsLeft = 3; int g_nScore = 0; int g_nPowerLevel = 20; int g_nCurrentLevel = 0; double g_dElpasedTime; double g_dCurTime; double g_dLastTime; double g_dAnimationTimer = 0.0; struct STAR { int x; // Star posit x int y; // Star posit y int nVelocity; // Star velocity COLORREF color; // Star color }; STAR g_stars[TOTAL_STARS]; // Star field array struct PARTICLE { int x; // Particle posit x int y; // Particle posit y int nVelocity; // Particle velocity bool bVisible; // Is particle visible or active COLORREF color; // Particle color }; PARTICLE g_exhaust[TOTAL_PARTICLES]; // Particle array for engine exhaust // Create a linked list with STL to hold and manage CSprite objects typedef list<CSprite> SPRITELIST; SPRITELIST g_SpriteList; SPRITELIST::iterator g_sprite_i; SPRITELIST::iterator g_sprite_j; SPRITELIST::iterator g_sprite_k; //----------------------------------------------------------------------------- // PROTOTYPES //----------------------------------------------------------------------------- LRESULT CALLBACK MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam); HRESULT WinInit(HINSTANCE hInst, int nCmdShow, HWND* phWnd, HACCEL* phAccel); HRESULT GameStart(HWND hWnd); HRESULT GameMain(HWND hWnd); void GameOver(void); HRESULT InitDirect3D(HWND hWnd, BOOL bWindowed); void FreeDirect3D(void); HRESULT InitDirectInput(HWND hWnd); void FreeDirectInput(void); void InitializeSprites(void); void InitializeStars(void); void InitializeExhaust(void); void MoveShip(void); void MoveSprites(void); void MoveStars(void); void MoveExhaust(void); void CheckCollisions(void); bool SpriteCollisionTest(CSprite& sprite1, CSprite& sprite2); bool CollisionTest(int x1, int y1, int w1, int h1, int x2, int y2, int w2, int h2); void ComputeScore(void); HRESULT DisplayFrame(void); HRESULT DrawStars(void); HRESULT DrawExhaust(void); HRESULT DrawPowerBar(void); int RandomInt(int nLow, int nHigh); //----------------------------------------------------------------------------- // Name: WinMain() // Desc: Entry point to the program. Initializes everything and calls. //----------------------------------------------------------------------------- int APIENTRY WinMain( HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR pCmdLine, int nCmdShow ) { MSG msg; HWND hWnd; HACCEL hAccel; memset(&msg,0,sizeof(msg)); WinInit( hInst, nCmdShow, &hWnd, &hAccel ); GameStart( hWnd ); while( TRUE ) { // Look for messages, if none are found then // update the state and display it if( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) ) { if( 0 == GetMessage(&msg, NULL, 0, 0 ) ) { // WM_QUIT was posted, so exit return (int)msg.wParam; } // Translate and dispatch the message if( 0 == TranslateAccelerator( hWnd, hAccel, &msg ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } } else { if( g_bActive ) { // Move the sprites, blt them to the back buffer, then // flip or blt the back buffer to the primary buffer g_dCurTime = timeGetTime(); g_dElpasedTime = ((g_dCurTime - g_dLastTime) * 0.001); g_dLastTime = g_dCurTime; if( FAILED( GameMain( hWnd ) ) ) { //SAFE_DELETE( g_pDisplay ); MessageBox( hWnd, TEXT("GameMain() failed. ") TEXT("The game will now exit. "), TEXT("PrototypeX"), MB_ICONERROR | MB_OK ); return FALSE; } } else { // Go to sleep if we have nothing else to do WaitMessage(); // Ignore time spent inactive //g_dwLastTick = timeGetTime(); } } } } //----------------------------------------------------------------------------- // Name: WinInit() // Desc: Init our game's window //----------------------------------------------------------------------------- HRESULT WinInit( HINSTANCE hInst, int nCmdShow, HWND *phWnd, HACCEL *phAccel ) { WNDCLASSEX wc; HWND hWnd; HACCEL hAccel; // Register the window class wc.cbSize = sizeof(wc); wc.lpszClassName = TEXT("MY_WINDOWS_CLASS"); wc.lpfnWndProc = MainWndProc; wc.style = CS_VREDRAW | CS_HREDRAW; wc.hInstance = hInst; wc.hIcon = LoadIcon( hInst, MAKEINTRESOURCE(IDI_MAIN_ICON) ); wc.hIconSm = LoadIcon( hInst, MAKEINTRESOURCE(IDI_MAIN_ICON) ); wc.hCursor = LoadCursor( NULL, IDC_ARROW ); wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1); wc.lpszMenuName = MAKEINTRESOURCE(IDR_MENU); wc.cbClsExtra = 0; wc.cbWndExtra = 0; if( RegisterClassEx( &wc ) == 0 ) return E_FAIL; // Load keyboard accelerators hAccel = LoadAccelerators( hInst, MAKEINTRESOURCE(IDR_MAIN_ACCEL) ); // Calculate the proper size for the window given a client of 640x480 DWORD dwFrameWidth = GetSystemMetrics( SM_CXSIZEFRAME ); DWORD dwFrameHeight = GetSystemMetrics( SM_CYSIZEFRAME ); DWORD dwMenuHeight = GetSystemMetrics( SM_CYMENU ); DWORD dwCaptionHeight = GetSystemMetrics( SM_CYCAPTION ); DWORD dwWindowWidth = SCREEN_WIDTH + dwFrameWidth * 2; DWORD dwWindowHeight = SCRE