开通博客赚积分
发布资源赚积分
分类

源码开发语言/平台
当前位置：首页 > 源码/资料 > Java编程 > Applet > 游戏 > 查看源码
Snow.cpp
资源名称：3DRPG.rar　[点击查看]
上传用户：cjwanglu
上传日期：2013-07-10
资源大小：4744k
文件大小：4k
源码类别：

游戏

开发平台：

Visual C++

Snow.cpp：源码内容
  1. #include "stdafx.h"
  2. #include "Snow.h"
  4. CSnow::CSnow(LPDIRECT3DDEVICE9 d3dd,DWORD Lenth,DWORD Width,DWORD Height,DWORD Density,float offset)
  5. {
  6. m_pD3DDevice=d3dd;
  7. m_dwLenth=Lenth;
  8. m_dwWidth=Width;
  9. m_dwHeight=Height;
  10. m_dwDensity=Density;
  11. m_lSnowCount=(m_dwWidth*m_dwLenth*m_dwDensity*m_dwDensity);
  12. m_fOffset=offset;
  14.    
  15.     InitialSnow();
  16. }
  18. CSnow::~CSnow()
  19. {
  20. m_pVb->Release();
  21. m_pTx->Release();
  22. }
  24. void CSnow::InitialSnow()
  25. {   SNOWVERTEX * vertex;
  27.     D3DXCreateTextureFromFile( m_pD3DDevice, "./res/snow2.tga",&m_pTx);
  29.     m_pD3DDevice->CreateVertexBuffer( m_lSnowCount*sizeof(SNOWVERTEX),D3DUSAGE_WRITEONLY,
  30.                                D3DFVF_SNOWVERTEX,D3DPOOL_MANAGED, &m_pVb,NULL );
  32.    m_pVb->Lock( 0, m_lSnowCount*sizeof(SNOWVERTEX),(void**)&vertex, 0 );
  34.      for( DWORD line = 0; line < (DWORD)(m_dwWidth*m_dwDensity) ; line++ )
  35.     {
  36. //float offwidth = (float)1/m_dwDensity;
  38.         for( DWORD seg=0; seg < (DWORD)(m_dwLenth*m_dwDensity); seg++ )
  39.         {
  40.             FLOAT fRandx = ((FLOAT)rand()/(FLOAT)RAND_MAX) *10.0f;
  41. FLOAT fRandy = ((FLOAT)rand()/(FLOAT)RAND_MAX) *10.0f;
  42.         FLOAT fRandz = ((FLOAT)rand()/(FLOAT)RAND_MAX)*10.0f;
  43.     
  44. //float offlenth = (float)1/m_dwDensity;
  45.             vertex->p.x =  -(float)m_dwWidth/2 + seg * ( fRandx);
  46.             vertex->p.y = (float)m_dwHeight + fRandy;
  47.             vertex->p.z =  -(float)m_dwLenth/2 + line *(fRandz);
  48. vertex->color=D3DCOLOR_XRGB(255,255,255);
  49. vertex++;
  50. }
  51. }
  52. m_pVb->Unlock();
  53.                                      
  54. }
  56. void CSnow::MoveSnow(D3DXVECTOR3 k,D3DXVECTOR3 j)
  57. {    
  58.      SNOWVERTEX * vertex=NULL;
  59.  m_pVb->Lock(0,m_lSnowCount*sizeof(SNOWVERTEX),(void **)&vertex,0);
  61. /* for( DWORD seg=0; seg < m_lSnowCount; seg++ )
  62.     {
  63.         if(vertex->p.y < 0)
  64. vertex->p.y = (float)m_dwHeight;
  65. else
  66. vertex->p.y -= offset;
  68.         vertex++;
  69. }*/
  70. /* for(DWORD i=0;i<m_lSnowCount;i++)
  71.  {
  72.  vertex->p.x=(i/10)*k.x;
  73.  vertex->p.y=(i/10)*k.y;
  74.  vertex->p.z=(i/10)*k.z;
  76.          vertex->p.x=(i/10)*k.x+j.x;
  77.  vertex->p.y=(i/10)*k.y+j.y;
  78.  vertex->p.z=(i/10)*k.z+j.z;
  80.            vertex++;
  81.  }*/
  82.     m_pVb->Unlock();
  84. }
  86. void CSnow::DrawSnow()
  87. {
  88.    // D3DXMATRIX matWorld;
  89. //D3DXMatrixTranslation( &matWorld, x,y,z );
  91. //m_pD3DDevice->SetTransform( D3DTS_WORLD, &matWorld );
  92.   SetMaterial();
  93. m_pD3DDevice->SetTexture( 0, m_pTx );
  94.     
  95.     
  96.    
  98.     m_pD3DDevice->SetRenderState( D3DRS_ALPHABLENDENABLE,   TRUE );
  99.     m_pD3DDevice->SetRenderState( D3DRS_SRCBLEND,  D3DBLEND_SRCALPHA );
  100.     m_pD3DDevice->SetRenderState( D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA);
  102.     m_pD3DDevice->SetRenderState( D3DRS_ALPHATESTENABLE, TRUE );
  103.     m_pD3DDevice->SetRenderState( D3DRS_ALPHAREF,        0x0f);
  104.     m_pD3DDevice->SetRenderState( D3DRS_ALPHAFUNC,D3DCMP_GREATEREQUAL );
  106.     m_pD3DDevice->SetRenderState( D3DRS_POINTSPRITEENABLE, TRUE );
  107.     m_pD3DDevice->SetRenderState( D3DRS_POINTSCALEENABLE,  TRUE );
  108.     m_pD3DDevice->SetRenderState( D3DRS_POINTSIZE,     FtoDW(2.00f) );
  109.     m_pD3DDevice->SetRenderState( D3DRS_POINTSIZE_MIN, FtoDW(0.00f) );
  110.     m_pD3DDevice->SetRenderState( D3DRS_POINTSCALE_A,  FtoDW(1.00f) );
  111.     m_pD3DDevice->SetRenderState( D3DRS_POINTSCALE_B,  FtoDW(1.00f) );
  112.     m_pD3DDevice->SetRenderState( D3DRS_POINTSCALE_C,  FtoDW(1.00f) );
  114.     m_pD3DDevice->SetFVF( D3DFVF_SNOWVERTEX );
  115.     m_pD3DDevice->SetStreamSource( 0, m_pVb,0, sizeof(SNOWVERTEX) );
  116.    m_pD3DDevice->DrawPrimitive( D3DPT_POINTLIST,
  117.                                    0, m_lSnowCount);
  120. /*MoveSnow(0.3f);
  122. m_pD3DDevice->SetFVF( D3DFVF_SNOWVERTEX );
  123.     m_pD3DDevice->SetStreamSource( 0, m_pVb,0, sizeof(SNOWVERTEX) );
  124.     m_pD3DDevice->DrawPrimitive( D3DPT_POINTLIST,
  125.                                    0, m_lSnowCount);
  127. m_pD3DDevice->SetRenderState( D3DRS_ALPHATESTENABLE, FALSE );
  128.     m_pD3DDevice->SetRenderState( D3DRS_ALPHABLENDENABLE, FALSE );
  129.     
  130. MoveSnow(m_fOffset);*/
  131. }
  133. void CSnow::RenderSnow()
  134. {  // m_pD3DDevice->SetRenderState(D3DRS_CULLMODE,D3DCULL_NONE);
  135. DrawSnow();
  136. }
  137. void CSnow::SetMaterial()
  138. {
  139.     ZeroMemory(&mtrl,sizeof(mtrl));
  140.     mtrl.Diffuse.r=mtrl.Ambient.r=1.0f;
  141. mtrl.Diffuse.g=mtrl.Ambient.g=1.0f;
  142. mtrl.Diffuse.b=mtrl.Ambient.b=1.0f;
  143. mtrl.Diffuse.a=mtrl.Ambient.a=1.0f;
  144.     mtrl.Specular.r=0.0f;
  145. mtrl.Specular.g=0.0f;
  146. mtrl.Specular.b=0.0f;
  147. mtrl.Specular.a=0.0f;
  149. mtrl.Emissive.r=1.0f;
  150. mtrl.Emissive.g=1.0f;
  151. mtrl.Emissive.b=1.0f;
  152. mtrl.Emissive.a=1.0f;
  153.      m_pD3DDevice->SetMaterial( &mtrl );
  154. }