// ================================================================ // Filename: Terrain.cpp // Description: A terrain engine // ================================================================ #define WIN32_LEAN_AND_MEAN #include #include #include #include #include #include "D3DFuncs.h" #include "cd3drasterfont.h" #include "cd3dtimer.h" #include "TerrainEngine.h" #include "Skybox.h" // Function declarations int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow); LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ); HRESULT GameInit(); HRESULT GameLoop(); HRESULT GameShutDown(); HRESULT Render(); // Globals static char strAppname[]="Simple Terrain demo by 32Bits.co.uk"; LPDIRECT3D8 g_pD3D; LPDIRECT3DDEVICE8 g_pDevice; LPDIRECT3DSURFACE8 g_pBackSurface; HWND g_hWnd; D3DCURRENTSETTINGS g_D3DSettings; CD3DRasterFont g_FPSFont; CD3DRasterFont g_32BitsFont; CD3DTimer g_TimerGlobal; // Globals specifically for this source CTerrainEngine g_Terrain; CSkyBox g_SkyBox; //----------------------------------------------------------------------------- // Name: WinMain() // Desc: The application's entry point //----------------------------------------------------------------------------- int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { WNDCLASSEX wc; ZeroMemory(&wc, sizeof(WNDCLASSEX)); wc.cbSize=sizeof(WNDCLASSEX); // size of the window struct in bytes wc.style=CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // window styles to use wc.lpfnWndProc=MsgProc; // function name of event handler wc.hInstance=hInstance; // handle to this apps instance wc.hbrBackground=(HBRUSH)GetStockObject(GRAY_BRUSH);// background colour of window wc.hIcon= LoadIcon(NULL, IDI_APPLICATION); // icon for the app window wc.hIconSm=LoadIcon(NULL, IDI_APPLICATION); // icon when minimized to taskbar wc.hCursor=LoadCursor(NULL, IDC_ARROW); // cursor to use for this window wc.lpszClassName=strAppname; // name for this class // Register the window class RegisterClassEx( &wc ); g_D3DSettings.m_nDeviceWidth=800; g_D3DSettings.m_nDeviceHeight=600; // Create the application's window g_hWnd = CreateWindow(strAppname, strAppname, WS_OVERLAPPEDWINDOW, 10, 10, g_D3DSettings.m_nDeviceWidth, g_D3DSettings.m_nDeviceHeight, NULL, NULL, wc.hInstance, NULL ); // Show the window ShowWindow(g_hWnd, nCmdShow); UpdateWindow(g_hWnd); if(FAILED(GameInit())) { UnregisterClass( strAppname, wc.hInstance ); return -1; } // Enter the message loop MSG msg; ZeroMemory( &msg, sizeof(msg) ); int count=0; while( msg.message!=WM_QUIT ) { if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } else { GameLoop(); } } GameShutDown(); UnregisterClass( strAppname, wc.hInstance ); return 0; } //----------------------------------------------------------------------------- // Name: MsgProc() // Desc: The window's message handler //----------------------------------------------------------------------------- LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) { HDC hDC; PAINTSTRUCT PaintStruct; switch( msg ) { case WM_PAINT: { hDC=BeginPaint(hWnd, &PaintStruct); // Tell windows we want to update the window // Do GDI drawing here EndPaint(hWnd, &PaintStruct); return 0; } case WM_KEYDOWN: { switch(wParam) { case VK_SPACE: { PostQuitMessage( 0 ); return 0; } } } case WM_DESTROY: { PostQuitMessage( 0 ); return 0; } default: return DefWindowProc( hWnd, msg, wParam, lParam ); } } // ===================================================================================== // High level functions for initialization, loop and shutdown // ===================================================================================== HRESULT GameInit() { HRESULT rslt=0; g_pD3D=Direct3DCreate8(D3D_SDK_VERSION); if(g_pD3D==NULL) { return E_FAIL; } // Populate our struct with how we want to set up D3D... g_D3DSettings.m_bWindowed=TRUE; g_D3DSettings.m_bMultiSampling=FALSE; g_D3DSettings.m_D3DFormat=D3DFMT_X8R8G8B8; // ...and pass it to our function to create the device! rslt=InitDirect3DDevice(g_hWnd, g_D3DSettings, g_pD3D, &g_pDevice); if(FAILED(rslt)) { return rslt; } // Set our culling renderstate, turn off lighting, and enable ZBuffering g_pDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW); g_pDevice->SetRenderState(D3DRS_LIGHTING, FALSE); g_pDevice->SetRenderState(D3DRS_ZENABLE, D3DZB_TRUE); // Use bilinear filtering to smooth out the texture g_pDevice->SetTextureStageState( 0, D3DTSS_MAGFILTER, D3DTEXF_LINEAR); g_pDevice->SetTextureStageState( 0, D3DTSS_MINFILTER, D3DTEXF_LINEAR); g_pDevice->SetTextureStageState( 0, D3DTSS_MIPFILTER, D3DTEXF_LINEAR); // Set the viewport D3DVIEWPORT8 ViewPort; ZeroMemory(&ViewPort, sizeof(D3DVIEWPORT8)); ViewPort.Height=g_D3DSettings.m_nDeviceHeight; ViewPort.Width=g_D3DSettings.m_nDeviceWidth; ViewPort.MaxZ=1.0f; g_pDevice->SetViewport(&ViewPort); // Set the projection matrix D3DXMATRIX ProjectionMatrix; ZeroMemory(&ProjectionMatrix, sizeof(ProjectionMatrix)); float ScreenAspect=(float)g_D3DSettings.m_nDeviceWidth / (float)g_D3DSettings.m_nDeviceHeight; float FOV = D3DX_PI / 4; D3DXMatrixPerspectiveFovLH(&ProjectionMatrix, FOV, ScreenAspect, 1.0f, 330.0f); g_pDevice->SetTransform(D3DTS_PROJECTION, &ProjectionMatrix); D3DXMATRIX ViewMatrix; D3DXMatrixLookAtLH(&ViewMatrix, &D3DXVECTOR3(0.0f, 70.0f, -100.0f), &D3DXVECTOR3(0.0f, 45.0f,-30.0f), &D3DXVECTOR3(0.0f,1.0f,0.0f)); g_pDevice->SetTransform(D3DTS_VIEW, &ViewMatrix); D3DXMATRIX WorldMatrix; D3DXMatrixIdentity(&WorldMatrix); g_pDevice->SetTransform(D3DTS_WORLD, &WorldMatrix); // ===================================================================================== // Set up the terrain engine // ===================================================================================== g_Terrain.Initialise(g_pDevice, "island.bmp"); g_SkyBox.Initialise(g_pDevice); // ===================================================================================== // Font for FPS // ===================================================================================== g_FPSFont.SetColourKey(g_pDevice, D3DCOLOR_XRGB(0,0,0)); g_FPSFont.SetText("32BITS.CO.UK"); g_FPSFont.SetCharsPerLine(10); g_FPSFont.SetLetterWidth(32); g_FPSFont.SetLetterHeight(32); g_FPSFont.SetTranslation(D3DXVECTOR2(290.0f, 550.0f)); rslt=g_FPSFont.Load(g_pDevice, "font1.bmp"); if(FAILED(rslt)) { return D3DError(rslt, __LINE__, __FILE__, "Failed to load raster font."); } g_32BitsFont.SetColourKey(g_pDevice, D3DCOLOR_XRGB(0,0,0)); g_32BitsFont.SetText("32BITS.CO.UK"); g_32BitsFont.SetCharsPerLine(10); g_32BitsFont.SetLetterWidth(32); g_32BitsFont.SetLetterHeight(32); g_32BitsFont.SetTranslation(D3DXVECTOR2(5.0f, 15.0f)); rslt=g_32BitsFont.Load(g_pDevice, "font1.bmp"); if(FAILED(rslt)) { return D3DError(rslt, __LINE__, __FILE__, "Failed to load raster font."); } rslt=g_TimerGlobal.Initialise(); if(FAILED(rslt)) { return D3DError(rslt, __LINE__, __FILE__, "Failed to initialise timer."); } return S_OK; } HRESULT GameLoop() { return Render(); } HRESULT GameShutDown() { if(g_pBackSurface) g_pBackSurface->Release(); if(g_pDevice) g_pDevice->Release(); if(g_pD3D) g_pD3D->Release(); return S_OK; } // ===================================================================================== // Main render function to perform D3D drawing // ===================================================================================== HRESULT Render() { HRESULT rslt=NULL; // ==================================================================================== // - Do all the usual checks to make sure we have the right pointers, etc... // ==================================================================================== // Make sure we have a valid D3D Device if(!g_pDevice) { return E_FAIL; } // Return if the device is not ready rslt=ValidateDevice(g_pDevice, g_pBackSurface, g_D3DSettings); if(FAILED(rslt)) { return rslt; } // Clear the back buffer g_pDevice->Clear(0,0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0,0,55), 1.0f, 0); // Get a pointer to the back buffer (remember, page flipping has taken place) rslt=g_pDevice->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &g_pBackSurface); if(FAILED(rslt)) { return E_FAIL; } rslt=g_pDevice->BeginScene(); if(FAILED(rslt)) { return E_FAIL; } // ==================================================================================== // - Do our drawing operations // ==================================================================================== D3DXMATRIX WorldMatrix; D3DXMatrixRotationY(&WorldMatrix, (timeGetTime()/1500.0f)); g_pDevice->SetTransform(D3DTS_WORLD, &WorldMatrix); //g_pDevice->SetRenderState(D3DRS_FILLMODE, D3DFILL_WIREFRAME); g_pDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE); g_SkyBox.Render(g_pDevice, g_pBackSurface); g_pDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW); g_Terrain.Render(g_pDevice, g_pBackSurface); char frate[15]; wsprintf(frate, "FRAMERATE: %d", g_TimerGlobal.GetFrameRate()); g_FPSFont.SetText(frate); g_FPSFont.Render(g_pDevice, g_pBackSurface); g_32BitsFont.Render(g_pDevice, g_pBackSurface); // ==================================================================================== // - Clean up and present the back buffer to be page flipped // ==================================================================================== g_pDevice->EndScene(); g_pBackSurface->Release(); // Present the back buffer to the display adapter to be drawn g_pDevice->Present(NULL, NULL, NULL, NULL); g_TimerGlobal.Frame(); return S_OK; }