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Particle.cpp
资源名称：3dexplorerTest.rar　[点击查看]
上传用户：hkb425
上传日期：2007-06-16
资源大小：34191k
文件大小：24k
源码类别：

游戏引擎

开发平台：

Visual C++

Particle.cpp：源码内容
  1. // Particle.cpp: implementation of the CParticle class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  5. #include "stdafx.h"
  6. #include "Particle.h"
  7. #include "Texture.h"
  9. //////////////////////////////////////////////////////////////////////
  10. // Construction/Destruction
  11. //////////////////////////////////////////////////////////////////////
  12. unsigned int *CParticle::m_pTexResource=NULL;
  13. CParticle::CParticle()
  14. {
  15.     particle=NULL;
  16. maxnum=100;
  17. Type=-1;
  18. }
  19. bool  CParticle::InitParticle(int type,VERTEX startPos,unsigned int *texResource)
  20. {
  21. if(m_pTexResource==NULL)m_pTexResource=texResource;
  22. if(Type<0)Type=type;
  23. switch(Type)
  24. {
  25. case RIFLE_P:
  26. maxnum=40;
  27. break;
  28. case EXPLOSION_P:
  29. maxnum=100;
  30. break;
  31. case ROCKET_P:
  32. maxnum=50;
  33. break;
  34. case SMOKE_P:
  35. maxnum=60;
  36. break;
  37. }
  38. if(particle==NULL)
  39. {
  40.     particle=new PARTICLE[maxnum];
  41. }
  42. switch(Type)
  43. {
  44. case RIFLE_P:
  45. InitShotParticle();
  46. break;
  47. case EXPLOSION_P:
  48. InitExpParticle();
  49. break;
  50. case ROCKET_P:
  51. InitBulletParticle( startPos);
  52. break;
  53. case SMOKE_P:
  54. InitSmokeParticle( );
  55. break;
  56. }
  57.     return true;
  58. }
  59. void CParticle::DrawParticles(VERTEX startPos)
  60. {
  61. switch(Type)
  62. {
  63. case RIFLE_P:
  64. DrawShotParticles();
  65. break;
  66. case EXPLOSION_P:
  67. DrawExpParticles( );
  68. break;
  69. case ROCKET_P:
  70. DrawBulletParticles( startPos);
  71. break;
  72. case SMOKE_P:
  73. DrawSmokeParticles();
  74. break;
  75. }
  76. }
  77. bool CParticle::InitShotParticle()
  78. {
  79.     smokenum=30;
  80. for(int i=0 ;i<maxnum;i++)
  81. {
  82.    particle[i].size =float(rand()%50)*0.001f+0.02f; 
  84.     particle[i].pos.xpos = float((rand()%40)*0.1f-2)*particle[i].size;//  /75.f;
  85.     particle[i].pos.ypos = float((rand()%40)*0.1f-2)*particle[i].size;
  86.     particle[i].pos.zpos = float((rand()%40)*0.1f-2)*particle[i].size;
  88.     particle[i].rotate = float(rand()%100-50);
  89.     if(i<smokenum)
  90. {
  91.         particle[i].normal.nx = float((rand()%50)-25)*0.001f;
  92.         particle[i].normal.ny = float((rand()%50)-0 )*0.005f+0.3f;
  93.         particle[i].normal.nz = float((rand()%50)-25)*0.001f;
  94.     particle[i].size =float((rand()%20)*0.01f+0.3f);
  95. }
  96. else
  97. {
  98.         particle[i].normal.nx = float((rand()%50)-25)*0.02f;
  99.         particle[i].normal.ny = float((rand()%50)-0 )*0.01f;
  100.         particle[i].normal.nz = float((rand()%50)-25)*0.02f;
  101. }
  102.     particle[i].life = 1;
  103.     particle[i].fade =float(rand()%100)/50000 + 0.01f;
  105. }
  107. glReadPixels(402,302,5,5,GL_RGB,GL_FLOAT,srccolor);
  108.     srccolor[26][0]=0;
  109.     srccolor[26][1]=0;
  110.     srccolor[26][2]=0;
  111.     for( i=0;i<25;i++)
  112. {
  113. srccolor[26][0]+=srccolor[i][0];
  114. srccolor[26][1]+=srccolor[i][1];
  115. srccolor[26][2]+=srccolor[i][2];
  116. }
  118. srccolor[26][0]=srccolor[26][0]*0.03f;
  119. srccolor[26][1]=srccolor[26][1]*0.03f;
  120. srccolor[26][2]=srccolor[26][2]*0.03f;
  122. return true;
  123. }
  124. void CParticle::DrawShotParticles()
  125. { 
  126.     glDisable(GL_CULL_FACE);
  127.   glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  128. glEnable(GL_BLEND);
  130. glDisable(GL_TEXTURE_2D);
  131.  
  132. for(int i=smokenum;i<maxnum;i++)
  133. {
  134.         if (particle[i].life > 0 && particle[i].pos.ypos>0)
  135.         {
  136.             particle[i].pos.xpos += particle[i].normal.nx;
  137.             particle[i].pos.ypos += particle[i].normal.ny;
  138.             particle[i].pos.zpos += particle[i].normal.nz;
  140.             particle[i].normal.ny -= 0.02f;  // cheap simulated gravity
  141.             particle[i].normal.nx *= 0.9f;
  142.             particle[i].normal.ny *= 0.99f;
  143.             particle[i].normal.nz *= 0.9f;
  145.             particle[i].life -= particle[i].fade;
  146.     
  147. // if(particle[i].rotate>0)
  148.     particle[i].rotate +=4.0f;
  149. // else
  150. //     particle[i].rotate -=4.0f;
  151.     
  152. /*            glPushMatrix();
  154.           glTranslatef(particle[i].pos.xpos, particle[i].pos.ypos, particle[i].pos.zpos);
  155.               glRotated(particle[i].rotate,1,1,1);
  156.           glTranslatef(-particle[i].pos.xpos, -particle[i].pos.ypos, -particle[i].pos.zpos);
  157.           */
  158. //            glColor4d(srccolor[26][0],srccolor[26][1],srccolor[26][2],particle[i].life);
  159.             glColor4f(0,0,0,particle[i].life);
  161.             glBegin(GL_QUADS);
  162.               glTexCoord2d(1,1); 
  163.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  164.               glTexCoord2d(1,0); 
  165.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  166.               glTexCoord2d(0,0); 
  167.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  168.               glTexCoord2d(0,1); 
  169.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  170.           glEnd();
  171. //         glPopMatrix();
  172.       }
  174. }
  175.     //////////////draw smoke
  176. glEnable(GL_TEXTURE_2D);
  177.   glBindTexture(GL_TEXTURE_2D,m_pTexResource[2] );
  178.     glDisable(GL_DEPTH_TEST);
  179. //    glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  180. //    glBlendFunc(GL_SRC_ALPHA,GL_ONE);
  182. for( i=0;i<smokenum;i++)
  183. {
  184. if(i>(smokenum-10))glBlendFunc(GL_SRC_ALPHA,GL_ONE);
  185. else glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  186.         if (particle[i].life > 0 && particle[i].pos.ypos>0)
  187.         {
  188.             particle[i].pos.xpos += particle[i].normal.nx;
  189.             particle[i].pos.ypos += particle[i].normal.ny;
  190.             particle[i].pos.zpos += particle[i].normal.nz;
  192.             particle[i].normal.ny -= 0.005f;  // cheap simulated gravity
  193.             particle[i].normal.nx *= 0.9f;
  194.             particle[i].normal.ny *= 0.9f;
  195.             particle[i].normal.nz *= 0.9f;
  197.             particle[i].life -= particle[i].fade;
  198.     
  199.             glColor4d(0.2f,0.13f,0.0f,particle[i].life);
  200. //            glColor4d(0.95f,0.75f,0.25f,particle[i].life);
  201. //            glColor4d(srccolor[26][0],srccolor[26][1],srccolor[26][2],particle[i].life);
  202.             glBegin(GL_QUADS);
  203.               glTexCoord2d(1,1); 
  204.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  205.               glTexCoord2d(1,0); 
  206.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  207.               glTexCoord2d(0,0); 
  208.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  209.               glTexCoord2d(0,1); 
  210.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  211.           glEnd();
  212.       }
  213. }
  214. glDisable(GL_ALPHA_TEST);
  215.     glColor4d(1,1,1,1); 
  216. glEnable(GL_DEPTH_TEST);
  217.   glDisable(GL_BLEND);
  219. }
  220. bool CParticle::InitExpParticle()
  221. {
  222.     smokenum=30;
  223. rocknum=70;
  224. for(int i=0 ;i<maxnum;i++)
  225. {
  226. particle[i].size =float(rand()%50)*0.001f+0.05f;
  227.     
  228.     particle[i].pos.xpos = float((rand()%4)-2)*particle[i].size;//  /75.f;
  229.     particle[i].pos.ypos = float((rand()%4)-2)*particle[i].size;
  230.     particle[i].pos.zpos = float(i-maxnum/2)*0.1f;
  232.     particle[i].rotate = float(i);
  234. if(i<smokenum)
  235. {
  236.         particle[i].normal.nx = float((rand()%50)-25)*0.015f;
  237.         if(i>20)
  238. {
  239.             particle[i].normal.nx = float((rand()%50)-25)*0.002f;
  240.             particle[i].normal.ny = float((rand()%50)-0)*0.04f+0.1f;
  241. particle[i].fade =float(rand()%100)*0.00001f + 0.01f;
  242. }
  243. else
  244. {
  245.             particle[i].normal.nx = float((rand()%50)-25)*0.01f;
  246.             particle[i].normal.ny = float((rand()%50)-0)*0.08f;
  247. particle[i].fade =float(rand()%100)*0.00001f + 0.001f;
  248. }
  249.         particle[i].normal.nz = 0;//float((rand()%50)-25)*0.006f;  
  251.     particle[i].size =float((rand()%40)*0.1f+12);
  252. }
  253. else if(i<rocknum)
  254. {
  255.         particle[i].normal.nx = float((rand()%50)-25)*0.04f;
  256.         particle[i].normal.ny = float((rand()%35)-0)*0.12f;
  257.         particle[i].normal.nz = float((rand()%50)-25)*0.04f;
  258. particle[i].fade =float(rand()%100)*0.00005f + 0.0001f;
  259. particle[i].size =float(rand()%50)*0.001f+0.1f;
  260. }
  261. else
  262. {
  263.         particle[i].normal.nx = float((rand()%50)-25)*0.07f;
  264.         particle[i].normal.ny = float((rand()%35)-0)*0.8f;
  265.         particle[i].normal.nz = float((rand()%50)-25)*0.07f;
  266. particle[i].fade =float(rand()%100)*0.00005f + 0.0001f;
  267. }
  268.     particle[i].life = 1;
  270. }
  271. /*
  272. glReadPixels(402,302,5,5,GL_RGB,GL_FLOAT,srccolor);
  273.     srccolor[26][0]=0;
  274.     srccolor[26][1]=0;
  275.     srccolor[26][2]=0;
  276.     for( i=0;i<25;i++)
  277. {
  278. srccolor[26][0]+=srccolor[i][0];
  279. srccolor[26][1]+=srccolor[i][1];
  280. srccolor[26][2]+=srccolor[i][2];
  281. }
  283. srccolor[26][0]=srccolor[26][0]*0.04f;
  284. srccolor[26][1]=srccolor[26][1]*0.04f;
  285. srccolor[26][2]=srccolor[26][2]*0.04f; */
  286. return true;
  287. }
  288. void CParticle::DrawExpParticles()
  289. {
  290.     glDisable(GL_CULL_FACE);
  291.   glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  292. glEnable(GL_TEXTURE_2D);
  293.   glBindTexture(GL_TEXTURE_2D,m_pTexResource[1] );
  294. for(int i=smokenum;i<maxnum;i++)
  295. {
  296.         if (particle[i].life > 0)
  297.         {
  298. if(particle[i].life > 0.4)
  299.              glDisable(GL_BLEND);
  300. else glEnable(GL_BLEND);
  302.             particle[i].pos.xpos += particle[i].normal.nx;
  303.             particle[i].pos.ypos += particle[i].normal.ny;
  304.             particle[i].pos.zpos += particle[i].normal.nz;
  306.             particle[i].normal.ny -= 0.08f;  // cheap simulated gravity
  307.             particle[i].normal.nx *= 0.99f;
  308.             particle[i].normal.ny *= 0.99f;
  309.             particle[i].normal.nz *= 0.99f;
  311.             particle[i].life -= particle[i].fade;
  313. particle[i].rotate +=6.0f;
  314.     
  315.             glPushMatrix();
  317.           glTranslatef(particle[i].pos.xpos, particle[i].pos.ypos, particle[i].pos.zpos);
  318.               glRotated(particle[i].rotate,1.f,0,0);
  319.           glTranslatef(-particle[i].pos.xpos, -particle[i].pos.ypos, -particle[i].pos.zpos);
  320.           
  321.               glColor4d(1,1,1,1);//particle[i].life);
  322.               //glColor4d(srccolor[26][0],srccolor[26][1],srccolor[26][2],particle[i].life);
  323.   /////////// rock
  324.               if(i<rocknum)
  325.   {
  326.               glBegin(GL_TRIANGLE_STRIP);
  327.                   glTexCoord2d(0,0); 
  328.                   glVertex3d(particle[i].pos.xpos-particle[i].size*2,  particle[i].pos.ypos-particle[i].size*2, particle[i].pos.zpos-particle[i].size*2);
  329.                   glTexCoord2d(0,1); 
  330.                   glVertex3d(particle[i].pos.xpos-particle[i].size*2,  particle[i].pos.ypos+particle[i].size*2, particle[i].pos.zpos-particle[i].size*2);
  332.                   glTexCoord2d(1,0); 
  333.                   glVertex3d(particle[i].pos.xpos+particle[i].size*2,  particle[i].pos.ypos-particle[i].size*1.5f, particle[i].pos.zpos-particle[i].size*2);
  334.                   glTexCoord2d(1,1); 
  335.                   glVertex3d(particle[i].pos.xpos+particle[i].size*2,  particle[i].pos.ypos+particle[i].size, particle[i].pos.zpos-particle[i].size*2);
  337.                   
  338.                   glTexCoord2d(0,0); 
  339.                   glVertex3d(particle[i].pos.xpos+particle[i].size*1.5f,  particle[i].pos.ypos-particle[i].size*1.2f, particle[i].pos.zpos+particle[i].size*1.3f);
  340.                   glTexCoord2d(0,1); 
  341.                   glVertex3d(particle[i].pos.xpos+particle[i].size*1.5f,  particle[i].pos.ypos+particle[i].size*0.3f, particle[i].pos.zpos+particle[i].size*1);
  344.                   glTexCoord2d(1,0); 
  345.                   glVertex3d(particle[i].pos.xpos,  particle[i].pos.ypos-particle[i].size*1.9f, particle[i].pos.zpos+particle[i].size*2.0f);
  346.                   glTexCoord2d(1,1); 
  347.                   glVertex3d(particle[i].pos.xpos,  particle[i].pos.ypos+particle[i].size*1.3f, particle[i].pos.zpos+particle[i].size*2.2f);
  349.                   glTexCoord2d(0,0); 
  350.                   glVertex3d(particle[i].pos.xpos-particle[i].size*2,  particle[i].pos.ypos-particle[i].size*2, particle[i].pos.zpos-particle[i].size*2);
  351.                   glTexCoord2d(0,1); 
  352.                   glVertex3d(particle[i].pos.xpos-particle[i].size*2,  particle[i].pos.ypos+particle[i].size*2, particle[i].pos.zpos-particle[i].size*2);
  353.               glEnd();
  354.               glBegin(GL_TRIANGLE_FAN);
  355.                   glTexCoord2d(0,0); 
  356.                   glVertex3d(particle[i].pos.xpos-particle[i].size*2,  particle[i].pos.ypos-particle[i].size*2, particle[i].pos.zpos-particle[i].size*2);
  358.                   glTexCoord2d(0,1); 
  359.                   glVertex3d(particle[i].pos.xpos+particle[i].size*2,  particle[i].pos.ypos-particle[i].size*1.5f, particle[i].pos.zpos-particle[i].size*2);
  361.                   
  362.                   glTexCoord2d(1,1); 
  363.                   glVertex3d(particle[i].pos.xpos+particle[i].size*1.5f,  particle[i].pos.ypos-particle[i].size*1.2f, particle[i].pos.zpos+particle[i].size*1.3f);
  365.                   glTexCoord2d(1,0); 
  366.                   glVertex3d(particle[i].pos.xpos,  particle[i].pos.ypos-particle[i].size*1.9f, particle[i].pos.zpos+particle[i].size*2.0f);
  368.               glEnd();
  369.               glBegin(GL_TRIANGLE_FAN);
  370.                   glTexCoord2d(0,0); 
  371.                   glVertex3d(particle[i].pos.xpos-particle[i].size*2,  particle[i].pos.ypos+particle[i].size*2, particle[i].pos.zpos-particle[i].size*2);
  373.                   glTexCoord2d(1,0); 
  374.                   glVertex3d(particle[i].pos.xpos+particle[i].size*2,  particle[i].pos.ypos+particle[i].size, particle[i].pos.zpos-particle[i].size*2);
  376.                   glTexCoord2d(1,1); 
  377.                   glVertex3d(particle[i].pos.xpos+particle[i].size*1.5f,  particle[i].pos.ypos+particle[i].size*0.3f, particle[i].pos.zpos+particle[i].size*1);
  379.                   glTexCoord2d(0,1); 
  380.                   glVertex3d(particle[i].pos.xpos,  particle[i].pos.ypos+particle[i].size*1.3f, particle[i].pos.zpos+particle[i].size*2.2f);
  382.               glEnd();
  384.   }else
  385.   {
  386.   
  387.               glBegin(GL_TRIANGLE_FAN);
  388.                   glTexCoord2d(1,0); 
  389.                   glVertex3d(particle[i].pos.xpos,                  particle[i].pos.ypos, particle[i].pos.zpos);
  390.                   glTexCoord2d(1,1); 
  391.   glVertex3d(particle[i].pos.xpos+particle[i].size, particle[i].pos.ypos, particle[i].pos.zpos);
  392.                   glTexCoord2d(0,1); 
  393.   glVertex3d(particle[i].pos.xpos+particle[i].size*1.2f, particle[i].pos.ypos+particle[i].size, particle[i].pos.zpos);
  394.                   glTexCoord2d(1,1); 
  395.   glVertex3d(particle[i].pos.xpos+particle[i].size*0.4f, particle[i].pos.ypos+particle[i].size*2, particle[i].pos.zpos);
  396.               glEnd();
  397.   }
  398.         glPopMatrix();
  399.       }
  400. }
  401.     //////////////draw smoke
  402. glEnable(GL_TEXTURE_2D);
  403.   glBindTexture(GL_TEXTURE_2D,m_pTexResource[2] );
  404. //    glDisable(GL_DEPTH_TEST);
  405.     glEnable(GL_BLEND);
  406. //    
  407. for( i=0;i<smokenum;i++)
  408. {
  409. if(i>20)glBlendFunc(GL_SRC_ALPHA,GL_ONE);
  410. else glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  411.         if (particle[i].life > 0 && particle[i].pos.ypos>0)
  412.         {
  413.             particle[i].pos.xpos += particle[i].normal.nx;
  414.             particle[i].pos.ypos += particle[i].normal.ny;
  415.             particle[i].pos.zpos += particle[i].normal.nz;
  417.             particle[i].normal.ny -= 0.03f;  // cheap simulated gravity
  418.             particle[i].normal.nx *= 0.9f;
  419.             particle[i].normal.ny *= 0.9f;
  420.             particle[i].normal.nz *= 0.9f;
  422.             particle[i].life -= particle[i].fade;
  423.     
  424. //           glColor4d(0.28f,0.27f,0.25f,particle[i].life);
  425.             glColor4d(0.6f,0.45f,0.2f,particle[i].life);
  426. //            glColor4d(srccolor[26][0],srccolor[26][1],srccolor[26][2],particle[i].life);
  427.             glBegin(GL_QUADS);
  428.               glTexCoord2d(1,1); 
  429.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  430.               glTexCoord2d(1,0); 
  431.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  432.               glTexCoord2d(0,0); 
  433.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  434.               glTexCoord2d(0,1); 
  435.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  436.           glEnd();
  437.       }
  438. }
  440.     glColor4d(1,1,1,1); 
  441. glEnable(GL_DEPTH_TEST);
  442.   glDisable(GL_BLEND);
  443. }
  444. /////////////////////////////////////////////////////////
  445. bool CParticle::InitBulletParticle(VERTEX startPos)
  446. {
  447.     smokenum=maxnum;
  448. for(int i=0 ;i<maxnum;i++)
  449. {
  450. particle[i].size =float(rand()%80)*0.01f+0.1f;
  452.     particle[i].pos.xpos = startPos.xpos+float((rand()%4)-2)*particle[i].size;//  /75.f;
  453.     particle[i].pos.ypos = startPos.ypos+float((rand()%4)-2)*particle[i].size;
  454.     particle[i].pos.zpos = startPos.zpos+i*0.1f;
  455.     particle[i].rotate = float(i);
  457. if(i<smokenum)
  458. {
  459.         particle[i].normal.nx = float((rand()%50)-25)*0.0f;
  460.         particle[i].normal.ny = float((rand()%25)-0)*0.0f;//+0.1f;
  461.         particle[i].normal.nz = float((rand()%50)-25)*0.0f;  
  462. particle[i].fade =float(rand()%100)*0.01f + 0.05f;
  463.     particle[i].size =float(rand()%100)*0.0005f+0.001f;
  464. }
  465. else
  466. {
  467.         particle[i].normal.nx =  float((rand()%50)-25)*0.05f;
  468.         particle[i].normal.ny =  float((rand()%50)-25)*0.05f;
  469.         particle[i].normal.nz =  float((rand()%50)-25)*0.05f;
  470. particle[i].fade =float(rand()%100)*0.003f + 0.01f;
  471. }
  472.     particle[i].life = 1;
  474. }
  476. return true;
  477. }
  478. void CParticle::DrawBulletParticles(VERTEX startPos)
  479. {
  480.     glDisable(GL_DEPTH_TEST);
  481.     glDisable(GL_CULL_FACE);
  482.   glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  483. glEnable(GL_BLEND);
  484. glEnable(GL_TEXTURE_2D);
  485.   glBindTexture(GL_TEXTURE_2D,m_pTexResource[1] );
  487. for(int i=smokenum;i<maxnum;i++)
  488. {
  489.         if (particle[i].life > 0)
  490.         {
  492.             particle[i].pos.xpos += particle[i].normal.nx;
  493.             particle[i].pos.ypos += particle[i].normal.ny;
  494.             particle[i].pos.zpos += particle[i].normal.nz;
  496.             particle[i].normal.ny -= 0.001f;  // cheap simulated gravity
  497.             particle[i].normal.nx *= 0.9f;
  498.             particle[i].normal.ny *= 0.9f;
  499.             particle[i].normal.nz *= 0.9f;
  501.             particle[i].life -= particle[i].fade;
  502. particle[i].rotate +=6.0f;
  503. //            glColor4d(particle[i].color.r,particle[i].color.g,particle[i].color.b,particle[i].life);
  504.             glColor4d(srccolor[26][0],srccolor[26][1],srccolor[26][2],particle[i].life);
  505.             glBegin(GL_QUADS);
  506.               glTexCoord2d(1,1); 
  507.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  508.               glTexCoord2d(1,0); 
  509.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  510.               glTexCoord2d(0,0); 
  511.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  512.               glTexCoord2d(0,1); 
  513.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  514.           glEnd();
  516. }
  517.     else ResetParticle(i,startPos);
  518. }
  519.     //////////////draw smoke
  520. glEnable(GL_TEXTURE_2D);
  521.   glBindTexture(GL_TEXTURE_2D,m_pTexResource[2] );
  522. glBlendFunc(GL_SRC_ALPHA,GL_ONE);
  523. // glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  524. glEnable(GL_BLEND);
  525. for( i=0;i<smokenum;i++)
  526. {
  528.         if (particle[i].life > 0)
  529.         {
  530.             particle[i].pos.xpos += particle[i].normal.nx;
  531.             particle[i].pos.ypos += particle[i].normal.ny;
  532.             particle[i].pos.zpos += particle[i].normal.nz;
  534.             particle[i].normal.ny += 0.006f;  // cheap simulated gravity
  535.             particle[i].normal.nx *= 0.9f;
  536.             particle[i].normal.ny *= 0.9f;
  537.             particle[i].normal.nz *= 0.9f;
  539.             particle[i].life -= particle[i].fade;
  540.     
  541. //          glColor4d(0.1f,0.1f,0.1f,particle[i].life);
  542.             glColor4d(0.2f,0.5f,0.6f,particle[i].life);          
  543. //   glColor4d(0.3f,0.23f,0.0f,particle[i].life);
  545.             glBegin(GL_QUADS);
  546.               glTexCoord2d(1,1); 
  547.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  548.               glTexCoord2d(1,0); 
  549.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  550.               glTexCoord2d(0,0); 
  551.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  552.               glTexCoord2d(0,1); 
  553.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  554.           glEnd();
  555. }
  556. else ResetParticle(i,startPos);
  557. }
  558.     glColor4d(1,1,1,1); 
  559. glEnable(GL_DEPTH_TEST);
  560.   glDisable(GL_BLEND);
  561. }
  562. void CParticle::ResetParticle(int num,VERTEX startPos)
  563. {
  564. if(num>(maxnum-1))return;
  566. particle[num].size =float(rand()%80)*0.01f+0.1f;
  567.     
  568.     particle[num].pos.xpos = startPos.xpos+float((rand()%4)-2)*particle[num].size;//  /75.f;
  569.     particle[num].pos.ypos = startPos.ypos+float((rand()%4)-2)*particle[num].size;
  570.     particle[num].pos.zpos = startPos.zpos+float((rand()%4)-2)*particle[num].size;
  572.     particle[num].rotate = float(num);
  574. if(num<smokenum)
  575. {
  576.         particle[num].normal.nx = float((rand()%50)-25)*0.04f;
  577.         particle[num].normal.ny = float((rand()%25)-0)*0.04f;//+0.1f;
  578.         particle[num].normal.nz = float((rand()%50)-25)*0.04f;  
  579. particle[num].fade =float(rand()%100)*0.004f + 0.02f;
  580.     particle[num].size =float(rand()%100)*0.01f+0.3f;
  581. }
  582. else
  583. {
  584.         particle[num].normal.nx =  float((rand()%50)-25)*0.05f;
  585.         particle[num].normal.ny =  float((rand()%50)-25)*0.05f;
  586.         particle[num].normal.nz =  float((rand()%50)-25)*0.05f;
  587. particle[num].fade =float(rand()%100)*0.008f + 0.015f;
  588. }
  589.     particle[num].life = 1;
  590. }
  591. /////////////////////////////////////////////////////////
  592. bool CParticle::InitSmokeParticle()
  593. {
  594. for(int i=0 ;i<maxnum;i++)
  595. {
  596.     particle[i].size =float(rand()%80)*0.01f+1;
  598.         particle[i].pos.xpos = 0;//  /75.f;
  599.         particle[i].pos.ypos = 0;
  600.         particle[i].pos.zpos = float(i-maxnum/2)*0.1f;
  602.         particle[i].normal.nx = float((rand()%50)-25)*0.004f;
  603.         particle[i].normal.ny = float((rand()%50)-0)*0.04f+0.1f;
  605. particle[i].fade =float(rand()%100)*0.003f + 0.01f;
  607.         particle[i].life = 1;
  608. }
  610. return true;
  611. }
  612. void CParticle::DrawSmokeParticles()
  613. {
  614.     //////////////draw smoke
  615. glEnable(GL_TEXTURE_2D);
  616.   glBindTexture(GL_TEXTURE_2D,m_pTexResource[3] );
  617.     glEnable(GL_BLEND);
  619. for(int i=0;i<maxnum;i++)
  620. {
  621. // if(i>20)glBlendFunc(GL_SRC_ALPHA,GL_ONE);
  622. // else 
  623. glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  624.         if (particle[i].life > 0)
  625.         {
  626.             particle[i].pos.xpos += particle[i].normal.nx;
  627.             particle[i].pos.ypos += particle[i].normal.ny;
  628. //          particle[i].pos.zpos += particle[i].normal.nz;
  630. //            particle[i].normal.ny += 0.003f;  // cheap simulated gravity
  632.             particle[i].normal.nx *= 1.01f;
  633.             particle[i].normal.ny *= 0.96f;
  634. //           particle[i].normal.nz *= 0.9f;
  636.             particle[i].size *=1.02f;
  638.             particle[i].life -= particle[i].fade;
  639.     
  640.             glColor4d(0.5f,0.5f,0.5f,particle[i].life);
  642.             glBegin(GL_QUADS);
  643.               glTexCoord2d(1,1); 
  644.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  645.               glTexCoord2d(1,0); 
  646.   glVertex3d( particle[i].pos.xpos+particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  647.               glTexCoord2d(0,0); 
  648.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos-particle[i].size,particle[i].pos.zpos);
  649.               glTexCoord2d(0,1); 
  650.   glVertex3d(particle[i].pos.xpos-particle[i].size,particle[i].pos.ypos+ particle[i].size,particle[i].pos.zpos);
  651.           glEnd();
  652. }
  653. else ResetSmokeParticle(i);
  654. }
  656.     glColor4d(1,1,1,1); 
  657.   glDisable(GL_BLEND);
  658. }
  659. void CParticle::ResetSmokeParticle(int num)
  660. {
  661. if(num>(maxnum-1))return;
  663.     particle[num].size =float(rand()%100)*0.01f+2;
  665.         particle[num].pos.xpos = 0;//  /75.f;
  666.         particle[num].pos.ypos = 0;
  667.         particle[num].pos.zpos = float(num-maxnum/2)*0.1f;
  669.         particle[num].normal.nx =-float((rand()%50)-0)*0.004f;
  670.         particle[num].normal.ny = float((rand()%50)-0)*0.04f+0.2f;
  672. particle[num].fade =float(rand()%100)*0.0001f + 0.01f;
  674.         particle[num].life = 1;
  677. }
  678. CParticle::~CParticle()
  679. {
  680. if(particle!=NULL)
  681.     delete [] particle;
  682. }