Direct Input Visual Studio Directx

This is a discussion on Direct Input Visual Studio Directx within the C++ Programming forums, part of the General Programming Boards category; PLEASE can anyone help. stuggling for days to control the cube using a keyboard. can anyone put in the code ...

  1. #1
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    Unhappy Direct Input Visual Studio Directx

    PLEASE can anyone help. stuggling for days to control the cube using a keyboard. can anyone put in the code for me (direct input keyboard) would REALLY appreciate some help.

    Code:
    #include <Windows.h> #include <mmsystem.h> #include <d3dx9.h> #pragma warning( disable : 4996 ) // disable deprecated warning #include <strsafe.h> #pragma warning( default : 4996 ) // Define M_PI in case the compiler does not #ifndef M_PI #define M_PI 3.1415926535897932384626433832795 #endif // Macro to convert radians to degrees #define RAD_2_DEG(x) ((x) * 180 / M_PI) #define DEG_2_RAD(x) ((x) * M_PI / 180) //----------------------------------------------------------------------------- // Global variables //----------------------------------------------------------------------------- LPDIRECT3D9 g_pD3D = NULL; // Used to create the D3DDevice LPDIRECT3DDEVICE9 g_pd3dDevice = NULL; // Our rendering device LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL; // Buffer to hold vertices //IDirect3DDevice9 g_device = NULL; // A structure for our custom vertex type struct CUSTOMVERTEX { FLOAT x, y, z; // The untransformed, 3D position for the vertex DWORD color; // The vertex color }; // Our custom FVF, which describes our custom vertex structure #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE) //----------------------------------------------------------------------------- // Name: InitD3D() // Desc: Initializes Direct3D //----------------------------------------------------------------------------- HRESULT InitD3D( HWND hWnd ) { // Create the D3D object. if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) ) return E_FAIL; // Set up the structure used to create the D3DDevice D3DPRESENT_PARAMETERS d3dpp; ZeroMemory( &d3dpp, sizeof(d3dpp) ); d3dpp.Windowed = TRUE; d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD; d3dpp.BackBufferFormat = D3DFMT_UNKNOWN; // Create the D3DDevice if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice ) ) ) { return E_FAIL; } // Turn off culling, so we see the front and back of the triangle g_pd3dDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE ); // Turn off D3D lighting, since we are providing our own vertex colors g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, FALSE ); return S_OK; } //----------------------------------------------------------------------------- // Name: InitGeometry() // Desc: Creates the scene geometry //----------------------------------------------------------------------------- HRESULT InitGeometry() { // Initialize three vertices for rendering a triangle CUSTOMVERTEX g_Vertices[] = { //Top Face {-5.0f, 5.0f, -5.0f, D3DCOLOR_XRGB(0, 0, 255),}, //Vertex 0 - Blue {-5.0f, 5.0f, 5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 1 - Red {5.0f, 5.0f, -5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 2 - Red {5.0f, 5.0f, 5.0f, D3DCOLOR_XRGB(0, 255, 0),}, //Vertex 3 - Green //Face 1 {-5.0f, -5.0f, -5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 4 - Red {-5.0f, 5.0f, -5.0f, D3DCOLOR_XRGB(0, 0, 255),}, //Vertex 5 - Blue {5.0f, -5.0f, -5.0f, D3DCOLOR_XRGB(0, 255, 0),}, //Vertex 6 - Green {5.0f, 5.0f, -5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 7 - Red //Face 2 {5.0f, -5.0f, 5.0f, D3DCOLOR_XRGB(0, 0, 255),}, //Vertex 8 - Blue {5.0f, 5.0f, 5.0f, D3DCOLOR_XRGB(0, 255, 0),}, //Vertex 9 - Green //Face 3 {-5.0f, -5.0f, 5.0f, D3DCOLOR_XRGB(0, 255, 0),}, //Vertex 10 - Green {-5.0f, 5.0f, 5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 11 - Red //Face 4 {-5.0f, -5.0f, -5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 12 - Red {-5.0f, 5.0f, -5.0f, D3DCOLOR_XRGB(0, 0, 255),}, //Vertex 13 - Blue //Bottom Face {5.0f, -5.0f, -5.0f, D3DCOLOR_XRGB(0, 255, 0),}, //Vertex 14 - Green {5.0f, -5.0f, 5.0f, D3DCOLOR_XRGB(0, 0, 255),}, //Vertex 15 - Blue {-5.0f, -5.0f, -5.0f, D3DCOLOR_XRGB(255,255,255),}, //Vertex 16 - Red {-5.0f, -5.0f, 5.0f, D3DCOLOR_XRGB(0, 255, 0),}, //Vertex 17 - Green }; // Create the vertex buffer. if( FAILED( g_pd3dDevice->CreateVertexBuffer( 38*sizeof(CUSTOMVERTEX), 0, D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &g_pVB, NULL ) ) ) { return E_FAIL; } // Fill the vertex buffer. VOID* pVertices; if( FAILED( g_pVB->Lock( 0, sizeof(g_Vertices), (void**)&pVertices, 0 ) ) ) return E_FAIL; memcpy( pVertices, g_Vertices, sizeof(g_Vertices) ); g_pVB->Unlock(); return S_OK; } //----------------------------------------------------------------------------- // Name: Cleanup() // Desc: Releases all previously initialized objects //----------------------------------------------------------------------------- VOID Cleanup() { if( g_pVB != NULL ) g_pVB->Release(); if( g_pd3dDevice != NULL ) g_pd3dDevice->Release(); if( g_pD3D != NULL ) g_pD3D->Release(); } //----------------------------------------------------------------------------- // Name: SetupMatrices() // Desc: Sets up the world, view, and projection transform Matrices. //----------------------------------------------------------------------------- VOID SetupMatrices() { // For our world matrix, we will just rotate the object about the y-axis. D3DXMATRIXA16 matWorld; // Set up the rotation matrix to generate 1 full rotation (2*PI radians) // every 1000 ms. To avoid the loss of precision inherent in very high // floating point numbers, the system time is modulated by the rotation // period before conversion to a radian angle. UINT iTime = timeGetTime() % 10000; FLOAT fAngle = iTime * (2.0f * D3DX_PI) / 10000.0f; D3DXMatrixRotationY( &matWorld, fAngle ); g_pd3dDevice->SetTransform( D3DTS_WORLD, &matWorld ); // Set up our view matrix. A view matrix can be defined given an eye point, // a point to lookat, and a direction for which way is up. Here, we set the // eye five units back along the z-axis and up three units, look at the // origin, and define "up" to be in the y-direction. D3DXVECTOR3 vEyePt( 0.0f, 40.0f,-40.0f ); D3DXVECTOR3 vLookatPt( 0.0f, 0.0f, 0.0f ); D3DXVECTOR3 vUpVec( 0.0f, 1.0f, 0.0f ); D3DXMATRIXA16 matView; D3DXMatrixLookAtLH( &matView, &vEyePt, &vLookatPt, &vUpVec ); g_pd3dDevice->SetTransform( D3DTS_VIEW, &matView ); // For the projection matrix, we set up a perspective transform (which // transforms geometry from 3D view space to 2D viewport space, with // a perspective divide making objects smaller in the distance). To build // a perpsective transform, we need the field of view (1/4 pi is common), // the aspect ratio, and the near and far clipping planes (which define at // what distances geometry should be no longer be rendered). D3DXMATRIXA16 matProj; D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, 1.0f, 1.0f, 500.0f ); g_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj ); } //----------------------------------------------------------------------------- // Name: Render() // Desc: Draws the scene //----------------------------------------------------------------------------- VOID Render() { // Clear the backbuffer to a black color g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0 ); // Begin the scene if( SUCCEEDED( g_pd3dDevice->BeginScene() ) ) { // Setup the world, view, and projection Matrices SetupMatrices(); // Render the vertex buffer contents g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof(CUSTOMVERTEX) ); g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX ); //g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 3, 3); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 0, 2 ); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 4, 8 ); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 12, 2 ); /* D3DXMatrixTranslation( &mTrans, 2.0f, 0.0f, 0 ); g_pd3dDevice->SetTransform( D3DTS_WORLD, &mTrans ); g_pd3dDevice->SetStreamSource( 0, g_pTriangleList_VB, 0, sizeof(Vertex) ); g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX ); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 0, 2 ); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 4, 8 ); g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 12, 2 ); */ // End the scene g_pd3dDevice->EndScene(); } // Present the backbuffer contents to the display g_pd3dDevice->Present( NULL, NULL, NULL, NULL ); } //----------------------------------------------------------------------------- // Name: MsgProc() // Desc: The window's message handler //----------------------------------------------------------------------------- LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) { switch( msg ) { case WM_DESTROY: Cleanup(); PostQuitMessage( 0 ); return 0; } return DefWindowProc( hWnd, msg, wParam, lParam ); } //----------------------------------------------------------------------------- // Name: WinMain() // Desc: The application's entry point //----------------------------------------------------------------------------- INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT ) { // Register the window class WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L, GetModuleHandle(NULL), NULL, NULL, NULL, NULL, "D3D Tutorial", NULL }; RegisterClassEx( &wc ); // Create the application's window HWND hWnd = CreateWindow( "D3D Tutorial", "D3D Tutorial 03: Matrices", WS_OVERLAPPEDWINDOW, 100, 100, 256, 256, NULL, NULL, wc.hInstance, NULL ); // Initialize Direct3D if( SUCCEEDED( InitD3D( hWnd ) ) ) { // Create the scene geometry if( SUCCEEDED( InitGeometry() ) ) { // Show the window ShowWindow( hWnd, SW_SHOWDEFAULT ); UpdateWindow( hWnd ); // Enter the message loop MSG msg; ZeroMemory( &msg, sizeof(msg) ); while( msg.message!=WM_QUIT ) { if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } else Render(); } } } UnregisterClass( "D3D Tutorial", wc.hInstance ); return 0; }
    Last edited by wickedsue; 07-28-2006 at 02:27 AM.

  2. #2
    (?<!re)tired Mario F.'s Avatar
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    You did it just to joke at us, didn't you?
    You, prankster you.

    Edit your post and place code tags aroud your code please. Also, please indent your code if you want to have any hopes of anyone taking a look at it.
    The programmer’s wife tells him: “Run to the store and pick up a loaf of bread. If they have eggs, get a dozen.”
    The programmer comes home with 12 loaves of bread.


    Originally Posted by brewbuck:
    Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.

  3. #3
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    Sorry

    Nope, wasnt a joke, can only apologise - complete idiot when it comes to this programming, (obviously, otherwise i wouldnt have asked for help!)

  4. #4
    (?<!re)tired Mario F.'s Avatar
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    Well, I was joking

    Now... do edit your initial post please and pace code tags around the code
    The programmer’s wife tells him: “Run to the store and pick up a loaf of bread. If they have eggs, get a dozen.”
    The programmer comes home with 12 loaves of bread.


    Originally Posted by brewbuck:
    Reimplementing a large system in another language to get a 25% performance boost is nonsense. It would be cheaper to just get a computer which is 25% faster.

  5. #5
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    isnt there is the gl thing?
    Code:
    global bool keys[256]
    LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
    {
        switch( msg )
        {
            case WM_DESTROY:
                Cleanup();
                PostQuitMessage( 0 );
                return 0;
     
    //from NeHe:
    case WM_KEYDOWN:						// Is A Key Being Held Down?
    		{
    			keys[wParam] = TRUE;					
    // If So, Mark ItAs TRUE
    			return 0;						// Jump Back
    		}
    
        }
    
        return DefWindowProc( hWnd, msg, wParam, lParam );
    }
    //will check press on space..
    if(keys[VK_SPACE]){
     
    }
    i guess that should work but you will need to include gl files (not sure) also check out :
    http://nehe.gamedev.net/data/lessons....asp?lesson=01

  6. #6
    Registered User Frobozz's Avatar
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    He already has a message handler. And no, it isn't OpenGL - its Win32.

  7. #7
    Registered User Osaou's Avatar
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    bool voo = TRUE; // so fugly...

  8. #8
    carry on JaWiB's Avatar
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    This would've been better suited for the game programming board. Anyways, I wrote a class to use some basic direct input, and this is just about all it is:

    Code:
    //variables
      LPDIRECTINPUT lpdi;
      LPDIRECTINPUTDEVICE keyboard;  
      unsigned char keystate[256];
    
    //initialization
    
      if(FAILED(DirectInput8Create(hInst,DIRECTINPUT_VERSION,IID_IUnknown,(void**) &lpdi,NULL)))
      //error
      if (FAILED(lpdi->CreateDevice(GUID_SysKeyboard, &m_keyboard, NULL)))
      //error 
    
      if (FAILED(keyboard->SetDataFormat(&c_dfDIKeyboard)))
      //error
    
      if (FAILED(keyboard->SetCooperativeLevel(hwnd, DISCL_BACKGROUND | DISCL_NONEXCLUSIVE)))
      //error
      if (FAILED(keyboard->Acquire()))
      //error
    
      //update input
      if (FAILED(keyboard->GetDeviceState(sizeof(keystate), (LPVOID)keystate)))
        //error
    
    //checking for keydown
      return (keystate[key] & 0x80) ? true:false;
    
    //cleanup
        if (keyboard)
      {
        keyboard->Unacquire();
        keyboard->Release();
        keyboard = 0;
      }
      if (lpdi)
      {
        lpdi->Release();
        lpdi = 0;
      }
    Have you looked at a tutorial like two kings? If you want more help, please post specific questions about your problem.
    "Think not but that I know these things; or think
    I know them not: not therefore am I short
    Of knowing what I ought."
    -John Milton, Paradise Regained (1671)

    "Work hard and it might happen."
    -XSquared

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