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Trying to do a little DirectX stuff... I've installed the latest SDK (from Dec 05, no less). When I go to compile, I get these errors under VC6:
C:\Program Files\Microsoft Visual Studio\MyProjects\trans_sprite\game.cpp(107) : error C2065: 'D3DXSPRITE_ALPHABLEND' : undeclared identifier
C:\Program Files\Microsoft Visual Studio\MyProjects\trans_sprite\game.cpp(118) : error C2660: 'Draw' : function does not take 5 parameters
There's several files here, so bear with me....
dxgraphics.h
game.hCode:#ifndef _DXGRAPHICS_H #define _DXGRAPHICS_H //function prototypes int Init_Direct3D(HWND, int, int, int); LPDIRECT3DSURFACE9 LoadSurface(char *, D3DCOLOR); LPDIRECT3DTEXTURE9 LoadTexture(char *, D3DCOLOR); //variable declarations extern LPDIRECT3D9 d3d; extern LPDIRECT3DDEVICE9 d3ddev; extern LPDIRECT3DSURFACE9 backbuffer; #endif
winmain.cppCode:#ifndef _GAME_H #define _GAME_H #include <d3d9.h> #include <d3dx9.h> #include <d3dx9math.h> #include <time.h> #include <stdio.h> #include <stdlib.h> #include "dxgraphics.h" //application title #define APPTITLE "Trans_Sprite" //screen setup #define FULLSCREEN 0 //0 = windowed, 1 = fullscreen #define SCREEN_WIDTH 640 #define SCREEN_HEIGHT 480 //macros to read the keyboard asynchronously #define KEY_DOWN(vk_code) ((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0) #define KEY_UP(vk_code)((GetAsyncKeyState(vk_code) & 0x8000) ? 1 : 0) //function prototypes int Game_Init(HWND); void Game_Run(HWND); void Game_End(HWND); //sprite structure typedef struct { int x,y; int width,height; int movex,movey; int curframe,lastframe; int animdelay,animcount; int scalex, scaley; int rotation, rotaterate; } SPRITE; #endif
dxgraphics.cppCode:#include <d3d9.h> #include <d3dx9.h> #include <time.h> #include <stdio.h> #include "dxgraphics.h" #include "game.h" //window event callback function LRESULT WINAPI WinProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) { switch( msg ) { case WM_DESTROY: //release the Direct3D device if (d3ddev != NULL) d3ddev->Release(); //release the Direct3D object if (d3d != NULL) d3d->Release(); //call the "front-end" shutdown function Game_End(hWnd); //tell Windows to kill this program PostQuitMessage(0); return 0; } return DefWindowProc( hWnd, msg, wParam, lParam ); } //helper function to set up the window properties ATOM MyRegisterClass(HINSTANCE hInstance) { //create the window class structure WNDCLASSEX wc; wc.cbSize = sizeof(WNDCLASSEX); //fill the struct with info wc.style = CS_HREDRAW | CS_VREDRAW; wc.lpfnWndProc = (WNDPROC)WinProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = NULL; wc.hCursor = LoadCursor(NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); wc.lpszMenuName = NULL; wc.lpszClassName = APPTITLE; wc.hIconSm = NULL; //set up the window with the class info return RegisterClassEx(&wc); } //entry point for a Windows program int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { MSG msg; HWND hWnd; // register the class MyRegisterClass(hInstance); //set up the screen in windowed or fullscreen mode? DWORD style; if (FULLSCREEN) style = WS_EX_TOPMOST | WS_VISIBLE | WS_POPUP; else style = WS_OVERLAPPED; //create a new window hWnd = CreateWindow( APPTITLE, //window class APPTITLE, //title bar style, //window style CW_USEDEFAULT, //x position of window CW_USEDEFAULT, //y position of window SCREEN_WIDTH, //width of the window SCREEN_HEIGHT, //height of the window NULL, //parent window NULL, //menu hInstance, //application instance NULL); //window parameters //was there an error creating the window? if (!hWnd) return FALSE; //display the window ShowWindow(hWnd, nCmdShow); UpdateWindow(hWnd); if (!Init_Direct3D(hWnd, SCREEN_WIDTH, SCREEN_HEIGHT, FULLSCREEN)) return 0; //initialize the game if (!Game_Init(hWnd)) { MessageBox(hWnd, "Error initializing the game", "Error", MB_OK); return 0; } // main message loop int done = 0; while (!done) { if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { //look for quit message if (msg.message == WM_QUIT) done = 1; //decode and pass messages on to WndProc TranslateMessage(&msg); DispatchMessage(&msg); } else //process game loop (else prevents running after window is closed) Game_Run(hWnd); } return msg.wParam; }
game.cppCode:#include <d3d9.h> #include <d3dx9.h> #include "dxgraphics.h" //variable declarations LPDIRECT3D9 d3d = NULL; LPDIRECT3DDEVICE9 d3ddev = NULL; LPDIRECT3DSURFACE9 backbuffer = NULL; int Init_Direct3D(HWND hwnd, int width, int height, int fullscreen) { //initialize Direct3D d3d = Direct3DCreate9(D3D_SDK_VERSION); if (d3d == NULL) { MessageBox(hwnd, "Error initializing Direct3D", "Error", MB_OK); return 0; } //set Direct3D presentation parameters D3DPRESENT_PARAMETERS d3dpp; ZeroMemory(&d3dpp, sizeof(d3dpp)); d3dpp.Windowed = (!fullscreen); d3dpp.SwapEffect = D3DSWAPEFFECT_COPY; d3dpp.BackBufferFormat = D3DFMT_X8R8G8B8; d3dpp.BackBufferCount = 1; d3dpp.BackBufferWidth = width; d3dpp.BackBufferHeight = height; d3dpp.hDeviceWindow = hwnd; //create Direct3D device d3d->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hwnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &d3ddev); if (d3ddev == NULL) { MessageBox(hwnd, "Error creating Direct3D device", "Error", MB_OK); return 0; } //clear the backbuffer to black d3ddev->Clear(0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0); //create pointer to the back buffer d3ddev->GetBackBuffer(0, 0, D3DBACKBUFFER_TYPE_MONO, &backbuffer); return 1; } LPDIRECT3DSURFACE9 LoadSurface(char *filename, D3DCOLOR transcolor) { LPDIRECT3DSURFACE9 image = NULL; D3DXIMAGE_INFO info; HRESULT result; //get width and height from bitmap file result = D3DXGetImageInfoFromFile(filename, &info); if (result != D3D_OK) return NULL; //create surface result = d3ddev->CreateOffscreenPlainSurface( info.Width, //width of the surface info.Height, //height of the surface D3DFMT_X8R8G8B8, //surface format D3DPOOL_DEFAULT, //memory pool to use &image, //pointer to the surface NULL); //reserved (always NULL) if (result != D3D_OK) return NULL; //load surface from file into newly created surface result = D3DXLoadSurfaceFromFile( image, //destination surface NULL, //destination palette NULL, //destination rectangle filename, //source filename NULL, //source rectangle D3DX_DEFAULT, //controls how image is filtered transcolor, //for transparency (0 for none) NULL); //source image info (usually NULL) //make sure file was loaded okay if (result != D3D_OK) return NULL; return image; } LPDIRECT3DTEXTURE9 LoadTexture(char *filename, D3DCOLOR transcolor) { //the texture pointer LPDIRECT3DTEXTURE9 texture = NULL; //the struct for reading bitmap file info D3DXIMAGE_INFO info; //standard Windows return value HRESULT result; //get width and height from bitmap file result = D3DXGetImageInfoFromFile(filename, &info); if (result != D3D_OK) return NULL; //create the new texture by loading a bitmap image file D3DXCreateTextureFromFileEx( d3ddev, //Direct3D device object filename, //bitmap filename info.Width, //bitmap image width info.Height, //bitmap image height 1, //mip-map levels (1 for no chain) D3DPOOL_DEFAULT, //the type of surface (standard) D3DFMT_UNKNOWN, //surface format (default) D3DPOOL_DEFAULT, //memory class for the texture D3DX_DEFAULT, //image filter D3DX_DEFAULT, //mip filter transcolor, //color key for transparency &info, //bitmap file info (from loaded file) NULL, //color palette &texture ); //destination texture //make sure the bitmap textre was loaded correctly if (result != D3D_OK) return NULL; return texture; }
Any thoughts??? I looked at the Draw function in the MSDN library, and according to them it does take 5 parameters... :PCode:#include "game.h" LPDIRECT3DTEXTURE9 kitty_image[7]; SPRITE kitty; LPDIRECT3DSURFACE9 back; LPD3DXSPRITE sprite_handler; HRESULT result; //timing variable long start = GetTickCount(); //initializes the game int Game_Init(HWND hwnd) { char s[20]; int n; //set random number seed srand(time(NULL)); //create sprite handler object result = D3DXCreateSprite(d3ddev, &sprite_handler); if (result != D3D_OK) return 0; //load the sprite animation for (n=0; n<6; n++) { //set up the filename sprintf(s,"cat%d.bmp",n+1); //load texture with "pink" as the transparent color kitty_image[n] = LoadTexture(s, D3DCOLOR_XRGB(255,0,255)); if (kitty_image[n] == NULL) return 0; } //load the background image back = LoadSurface("background.bmp", NULL); //initialize the sprite's properties kitty.x = 100; kitty.y = 150; kitty.width = 96; kitty.height = 96; kitty.curframe = 0; kitty.lastframe = 5; kitty.animdelay = 2; kitty.animcount = 0; kitty.movex = 8; kitty.movey = 0; //return okay return 1; } //the main game loop void Game_Run(HWND hwnd) { //make sure the Direct3D device is valid if (d3ddev == NULL) return; //after short delay, ready for next frame? //this keeps the game running at a steady frame rate if (GetTickCount() - start >= 30) { //reset timing start = GetTickCount(); //move the sprite kitty.x += kitty.movex; kitty.y += kitty.movey; //"warp" the sprite at screen edges if (kitty.x > SCREEN_WIDTH - kitty.width) kitty.x = 0; if (kitty.x < 0) kitty.x = SCREEN_WIDTH - kitty.width; //has animation delay reached threshold? if (++kitty.animcount > kitty.animdelay) { //reset counter kitty.animcount = 0; //animate the sprite if (++kitty.curframe > kitty.lastframe) kitty.curframe = 0; } } //start rendering if (d3ddev->BeginScene()) { //erase the entire background d3ddev->StretchRect(back, NULL, backbuffer, NULL, D3DTEXF_NONE); //start sprite handler sprite_handler->Begin(D3DXSPRITE_ALPHABLEND); //create vector to update sprite position D3DXVECTOR3 position((float)kitty.x, (float)kitty.y, 0); //draw the sprite sprite_handler->Draw( kitty_image[kitty.curframe], NULL, NULL, &position, D3DCOLOR_XRGB(255,255,255)); //stop drawing sprite_handler->End(); //stop rendering d3ddev->EndScene(); } //display the back buffer on the screen d3ddev->Present(NULL, NULL, NULL, NULL); //check for escape key (to exit program) if (KEY_DOWN(VK_ESCAPE)) PostMessage(hwnd, WM_DESTROY, 0, 0); } //frees memory and cleans up before the game ends void Game_End(HWND hwnd) { int n; for (n=0; n<6; n++) if (kitty_image[n] != NULL) kitty_image[n]->Release(); if (back != NULL) back->Release(); if (sprite_handler != NULL) sprite_handler->Release(); }
Thanks!
-Max
Originally Posted by Tommaso 