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Pine.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：5k
源码类别：

游戏引擎

开发平台：

Visual C++

Pine.cpp：源码内容
  1. // Pine.cpp: implementation of the CPine class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  5. #include "stdafx.h"
  6. #include "Pine.h"
  7. #include "Texmanager.h"
  8. #include "math.h"
  9. #include "heightmap.h"
  10. //////////////////////////////////////////////////////////////////////
  11. // Construction/Destruction
  12. //////////////////////////////////////////////////////////////////////
  14. CPine::CPine()
  15. {
  16. m_szTree=0.2f;
  17.     m_height=m_szTree*60;
  18. }
  20. CPine::~CPine()
  21. {
  23. }
  24. bool CPine::InitPine(int type,float size)
  25. {
  26.  m_szTree = size;
  27.  m_height=m_szTree*60;
  29.  CTexManager cTexManager;
  30.  //////////////read blend skin texture
  31.  texTreeBody=cTexManager.GetTextureID(TEX_TREEBODY_1);
  32.      texBranch=cTexManager.GetTextureID(TEX_BRANCH_2);
  34.      return true;
  35. }
  36. void CPine::RenderPine(VERTEX pos)
  37. {
  38.     glPushMatrix();
  39. glTranslatef(pos.xpos,pos.ypos,pos.zpos);
  41.     DrawPine();
  43.     glPopMatrix();
  45. CHeightmap::m_numTriangles += 92 ;
  46. }
  47. void CPine::DrawPine()
  48. {
  49.     ///////////////////////////////////
  50. //////////Draw Tree Body
  51.     glDisable(GL_ALPHA_TEST);
  52. glDisable(GL_BLEND);
  53.   glBindTexture(GL_TEXTURE_2D, texTreeBody);
  54. glEnable(GL_TEXTURE_2D);
  55. glBegin(GL_QUAD_STRIP);
  56.     for(float i=0;i<8;i++)
  57. {
  58.         glTexCoord2f(i*0.3f,0);    
  59. glVertex3f(-m_szTree*sinf(i*45*0.0174533f),0,-m_szTree*cosf(i*45*0.0174533f));
  60.         glTexCoord2f(i*0.3f+0.3f,8);    
  61. glVertex3f(-m_szTree*sinf(i*45*0.0174533f)*0.1f,m_height,-m_szTree*cosf(i*45*0.0174533f)*0.1f);
  62. }
  63.     glTexCoord2f(2.4f,0);    
  64.     glVertex3f(0,0,-m_szTree);
  65.     glTexCoord2f(2.7f,8);    
  66. glVertex3f(0,m_height,-m_szTree*0.1f);
  67.     glEnd();
  69.     //////////////////////////////////////////
  70. ///////////////// Draw Branch ////////////
  71.     glAlphaFunc(GL_GREATER,0.10f);
  72. glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
  73. glEnable(GL_BLEND);
  74.     glEnable(GL_ALPHA_TEST);
  76.   glBindTexture(GL_TEXTURE_2D, texBranch);
  77. glEnable(GL_TEXTURE_2D);
  78.     
  79.     //////////////////////////////////
  80.     glPushMatrix();
  81.     //////////////////////////////////
  82. glTranslatef(0,m_height*0.2f,0);
  83. glRotatef(0,  0.0f,1.0f,0.0f);
  84.     DrawBranch(m_height*0.2f);
  86. glTranslatef(0,m_height*0.04f,0);
  87. glRotatef(170,  0.0f,1.0f,0.0f);
  88.     DrawBranch(m_height*0.35f);
  90. glTranslatef(0,m_height*0.04f,0);
  91. glRotatef(80,  0.0f,1.0f,0.0f);
  92.     DrawBranch(m_height*0.38f);
  93.   
  94. glTranslatef(0,m_height*0.03f,0);
  95. glRotatef(130,  0.0f,1.0f,0.0f);
  96.     DrawBranch(m_height*0.38f);
  98. glTranslatef(0,m_height*0.04f,0);
  99. glRotatef(170,  0.0f,1.0f,0.0f);
  100.     DrawBranch(m_height*0.3f);
  102. glTranslatef(0,m_height*0.04f,0);
  103. glRotatef(80,  0.0f,1.0f,0.0f);
  104.     DrawBranch(m_height*0.32f);
  105.   
  106. glTranslatef(0,m_height*0.04f,0);
  107. glRotatef(130,  0.0f,1.0f,0.0f);
  108.     DrawBranch(m_height*0.3f);
  109.  
  110. glTranslatef(0,m_height*0.035f,0);
  111. glRotatef(200,  0.0f,1.0f,0.0f);
  112.     DrawBranch(m_height*0.3f);
  114. glTranslatef(0,m_height*0.035f,0);
  115. glRotatef(90,  0.0f,1.0f,0.0f);
  116.     DrawBranch(m_height*0.2f);
  118. glTranslatef(0,m_height*0.05f,0);
  119. glRotatef(150,  0.0f,1.0f,0.0f);
  120.     DrawBranch(m_height*0.28f);
  122. glTranslatef(0,m_height*0.055f,0);
  123. glRotatef(80,  0.0f,1.0f,0.0f);
  124.     DrawBranch(m_height*0.28f);
  125.  
  126. glTranslatef(0,m_height*0.055f,0);
  127. glRotatef(90,  0.0f,1.0f,0.0f);
  128.     DrawBranch(m_height*0.3f);
  129.  
  130. glTranslatef(0,m_height*0.035f,0);
  131. glRotatef(180,  0.0f,1.0f,0.0f);
  132.     DrawBranch(m_height*0.18f);
  133.  
  134. glTranslatef(0,m_height*0.05f,0);
  135. glRotatef(150,  0.0f,1.0f,0.0f);
  136.     DrawBranch(m_height*0.25f);
  138. glTranslatef(0,m_height*0.05f,0);
  139. glRotatef(80,  0.0f,1.0f,0.0f);
  140.     DrawBranch(m_height*0.22f);
  141.  
  142. glTranslatef(0,m_height*0.055f,0);
  143. glRotatef(90,  0.0f,1.0f,0.0f);
  144.     DrawBranch(m_height*0.2f);
  145.  
  146. glTranslatef(0,m_height*0.045f,0);
  147. glRotatef(180,  0.0f,1.0f,0.0f);
  148.     DrawBranch(m_height*0.18f);
  149.  
  150. glTranslatef(0,m_height*0.03f,0);
  151. glRotatef(90,  0.0f,1.0f,0.0f);
  152.     DrawBranch(m_height*0.1f);
  154. glTranslatef(0,m_height*0.03f,0);
  155. glRotatef(180,  0.0f,1.0f,0.0f);
  156.     DrawBranch(m_height*0.14f);
  157.   
  158. ////////////////////////////
  159. glPopMatrix();
  160. ////////////////////////////
  162.     glDisable(GL_ALPHA_TEST);
  163. glDisable(GL_BLEND); 
  164. }
  165. void CPine::DrawBranch(float width)
  166. {
  167. glBegin(GL_TRIANGLE_STRIP);
  168.     ////////// face 
  169.     glTexCoord2f(0,0);
  170.     glVertex3f(width*0.5f,-width*0.4f,0.7071f*width);
  172.     glTexCoord2f(0,1);
  173.     glVertex3f(width,-width*0.1f,0);
  175.     glTexCoord2f(1,0);
  176.     glVertex3f(0,0,0);
  178.     glTexCoord2f(1,1);
  179.     glVertex3f(width*0.5f,-width*0.4f,-0.7071f*width);
  181. glEnd();
  182. }