【C++】DirectXで円柱x3を回転+α【そして四歩目】

こんな感じでぐーるぐる

本来はこんなにカクカクじゃないからね！
ヌルヌルだからね！

そして追加でエラー終了する前にそれぞれのエラーを表示するようにしました スパゲッティソースはこちら

#pragma comment(lib,"d3dx9.lib")
#pragma comment(lib,"d3d9.lib")
#pragma comment(lib,"winmm.lib")

#include<TCHAR.h>
#include<d3dx9.h>
#include<math.h>
#include<strsafe.h>


#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_DIFFUSE)
#define WS_GAMEWINDOW (WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU)

void Render();
void Cleanup();
void SetupLights();
void SetupMatrices();

LPDIRECT3D9 g_pD3D = NULL;
LPDIRECT3DDEVICE9 g_pd3dDevice = NULL;
LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL;

LRESULT CALLBACK MsgProc( HWND, UINT, WPARAM, LPARAM );

HRESULT InitD3D( HWND );
HRESULT InitGeometry();
HRESULT SetStreamSource(UINT StreamNumber, IDirect3DVertexBuffer9 *pStreamData, UINT OffsetInBytes, UINT Stride );
HRESULT DrawPrimitive( D3DPRIMITIVETYPE PrimitiveType, UINT StartVertex, UINT PrimitiveCount );



struct CUSTOMVERTEX
{
    D3DXVECTOR3 position; // The 3D position for the vertex
    D3DXVECTOR3 normal;   // The surface normal for the vertex
};


int WINAPI _tWinMain( HINSTANCE hInst, HINSTANCE hPrevInst, LPTSTR lpszCmdLine, int nShowCmd)
{
 HWND hWnd;
 MSG msg;
 WNDCLASSEX wcex = {};
 
 
 
 //①ウィンドウクラスの定義・登録
 wcex.cbSize = sizeof(WNDCLASSEX);
 wcex.style = CS_CLASSDC; //スタイル
 wcex.lpfnWndProc = MsgProc; //メッセージ処理関数
 wcex.cbClsExtra = 0L;
 wcex.cbWndExtra = 0L;
 wcex.hInstance = GetModuleHandle(NULL); //プログラムのハンドル
 wcex.hIcon = NULL; //アイコン
 wcex.hCursor = NULL; //カーソル
 wcex.hbrBackground = NULL; //背景色
 wcex.lpszMenuName = NULL; //メニュー
 wcex.lpszClassName = _T("D3D Tutorial"); //クラス名
 if( !RegisterClassEx( &wcex ) )
 {
  MessageBox(hWnd, _T("_TWinMain Error!"), _T("Failed to RegisterClassEx( &wcex )."), MB_OK|MB_ICONSTOP );
  return 0;
 }

 //②ウィンドウの作成
 if( !(hWnd = CreateWindow
 (
  _T("D3D Tutorial"),      // 登録されているクラス名
  _T("Test by aoisensi."), // ウィンドウ名
  WS_GAMEWINDOW,           // ウィンドウスタイル
  CW_USEDEFAULT,           // ウィンドウの横方向の位置
  CW_USEDEFAULT,           // ウィンドウの縦方向の位置
  640,                     // ウィンドウの幅
  480,                     // ウィンドウの高さ
  NULL,                    // 親ウィンドウまたはオーナーウィンドウのハンドル
  NULL,                    // メニューハンドルまたは子ウィンドウ ID
  wcex.hInstance,          // アプリケーションインスタンスのハンドル
  NULL                     // ウィンドウ作成データ
 ) ) )
 {
  MessageBox(hWnd, _T("_TWinMain Error!"), _T("Failed to CreateWindow."), MB_OK|MB_ICONSTOP );
  return 0;
 }
 
 //③ウィンドウを表示
 if( SUCCEEDED( InitD3D( hWnd ) ) )
 {
  if( SUCCEEDED( InitGeometry() ) )
  {
   ShowWindow( hWnd, SW_SHOWDEFAULT );
   UpdateWindow( hWnd );

   ZeroMemory( &msg, sizeof(msg) );

   //④メインループ
   while( msg.message!=WM_QUIT )
   {
    if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) )
    {
     TranslateMessage( &msg );
     DispatchMessage( &msg );
    }
    else
    {
     Render();
    }
   }
  }
  else
  {
   MessageBox(hWnd, _T("_tWinMain Error!"), _T("Failed to InitGeometry."), MB_OK|MB_ICONSTOP );
  }
 }

 UnregisterClass( _T("D3D Tutorial"), wcex.hInstance );

 return 0;
}


void Render()
{
 if( NULL == g_pd3dDevice )
 {
  return;
 }
 g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER, D3DCOLOR_XRGB(0x00, 0x00, 0xFF), 1.0f, 0 );

 if ( SUCCEEDED( g_pd3dDevice->BeginScene() ) )
 {
  SetupLights();

  SetupMatrices();

  g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof(CUSTOMVERTEX) );
  g_pd3dDevice->SetFVF( D3DFVF_CUSTOMVERTEX );
  g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 0, 2*50-2 ); //一つ目のトイレットペーパーの芯

  D3DXMATRIXA16 matWorld, curWorld;
  g_pd3dDevice->GetTransform( D3DTS_WORLD, &curWorld);
  D3DXMatrixTranslation( &matWorld, -3,0,2 );
  curWorld = curWorld * matWorld;
  g_pd3dDevice->SetTransform( D3DTS_WORLD, &curWorld );
  g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 0, 2*50-2 ); //二つ目のトイレットペーパーの芯

  D3DXMatrixTranslation( &matWorld,  3,0,2 );
  curWorld = curWorld * matWorld;
  g_pd3dDevice->SetTransform( D3DTS_WORLD, &curWorld );
  g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLESTRIP, 0, 2*50-2 ); //三つ目のトイレットペーパーの芯

  g_pd3dDevice->EndScene();
 }

 g_pd3dDevice->Present( NULL, NULL, NULL, NULL );
}

void Cleanup()
{
 if( g_pd3dDevice != NULL)
 {
  g_pd3dDevice->Release();
 }

 if ( g_pD3D != NULL)
 { 
  g_pD3D->Release();
 }
}

void SetupLights()
{
 D3DMATERIAL9 mtrl;
 ZeroMemory( &mtrl, sizeof(D3DMATERIAL9) );
 mtrl.Diffuse.r = mtrl.Ambient.r = 1.0f;
 mtrl.Diffuse.g = mtrl.Ambient.g = 1.0f;
 mtrl.Diffuse.b = mtrl.Ambient.b = 0.0f;
 mtrl.Diffuse.a = mtrl.Ambient.a = 1.0f;
 g_pd3dDevice->SetMaterial( &mtrl );

 D3DXVECTOR3 vecDir;
 D3DLIGHT9 light;
 ZeroMemory( &light, sizeof(D3DLIGHT9) );
 light.Type     = D3DLIGHT_DIRECTIONAL;
 light.Diffuse.r = 1.0f;
 light.Diffuse.g = 1.0f;
 light.Diffuse.b = 1.0f;
 vecDir = D3DXVECTOR3(cosf(timeGetTime()/350.0f),
       1.0f,
       sinf(timeGetTime()/350.0f) );
 D3DXVec3Normalize( (D3DXVECTOR3*)&light.Direction, &vecDir );
 light.Range = 1000.0f;
 g_pd3dDevice->SetLight( 0, &light );
 g_pd3dDevice->LightEnable( 0, true );
 g_pd3dDevice->SetRenderState( D3DRS_LIGHTING, true );
 g_pd3dDevice->SetRenderState( D3DRS_AMBIENT, 0x00202020 );
}

void SetupMatrices()

{
 D3DXMATRIXA16 matWorld;
 D3DXMatrixIdentity( &matWorld );
 D3DXMatrixRotationX( &matWorld, timeGetTime()/500.0f );
 g_pd3dDevice->SetTransform( D3DTS_WORLD, &matWorld );

 D3DXVECTOR3 vEyePt( 0.0f, 3.0f, -5.0f );
 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 );

 D3DXMATRIXA16 matProj;
 D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, 1.0f, 1.0f, 100.0f );

 g_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );
}


LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
 switch( msg )
 {
  case WM_DESTROY:
   Cleanup();
   PostQuitMessage( 0 );
   return 0;
  case WM_PAINT:
   Render();
   ValidateRect( hWnd, NULL );
   return 0;
  default:
   return( DefWindowProc( hWnd, msg, wParam, lParam) );
 }
}


HRESULT InitD3D( HWND hWnd )
{
 if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
 {
  MessageBox(hWnd, _T("InitD3D Error!"), _T("Null to Direct3DCreate9."), MB_OK|MB_ICONSTOP );
  return E_FAIL;
 }


 D3DPRESENT_PARAMETERS d3dpp;
 ZeroMemory( &d3dpp, sizeof(d3dpp) );
 d3dpp.Windowed = true;
 d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
 d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
 d3dpp.EnableAutoDepthStencil = true;
 d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
 d3dpp.BackBufferWidth = 640;
 d3dpp.BackBufferHeight = 480;

 

 if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice ) ) )
 {
  MessageBox(hWnd, _T("InitD3D Error!"), _T("Failed to CreateDevice."), MB_OK|MB_ICONSTOP );
  return E_FAIL;
 }
 


 g_pd3dDevice->SetRenderState( D3DRS_CULLMODE, D3DCULL_NONE );

 g_pd3dDevice->SetRenderState( D3DRS_ZENABLE, true );

 return S_OK;
}

HRESULT InitGeometry()
{
 if( FAILED( g_pd3dDevice->CreateVertexBuffer( 50*2*sizeof(CUSTOMVERTEX),
    0, D3DFVF_CUSTOMVERTEX,
    D3DPOOL_DEFAULT, &g_pVB, NULL ) ) )
 {
  return E_FAIL;
 }

 CUSTOMVERTEX* pVertices;
 if( FAILED( g_pVB->Lock( 0, 0, (void**)&pVertices, 0 ) ) )
 {
  return E_FAIL;
 }
 for( DWORD i=0; i<50; i++ )
 {
  FLOAT theta = (2*D3DX_PI*i)/(50-1);
  pVertices[2*i+0].position = D3DXVECTOR3( sinf(theta),-1.0f, cosf(theta) );
  pVertices[2*i+0].normal   = D3DXVECTOR3( sinf(theta), 0.0f, cosf(theta) );
  pVertices[2*i+1].position = D3DXVECTOR3( sinf(theta), 1.0f, cosf(theta) );
  pVertices[2*i+1].normal   = D3DXVECTOR3( sinf(theta), 0.0f, cosf(theta) );
 }
 g_pVB->Unlock();

 return S_OK;
}