opengl.cpp

实现3D游戏碰撞

// OpenGL.cpp: implementation of the OpenGL class.
// 学程序编游戏系列丛书
// 唐明理 E_mail: [e-mail]
//====================================================================
#include "stdafx.h"
#include "OpenGL.h"
//////////////////////////////////////////////////////////////////////
GLfloat	r;   
CString	test; 
anmobj* m_anmobj;
mdlobj	m_mdlobj;
//////////////////////////////////////////////////////////////////////
OpenGL::OpenGL()
{	hFont  =CreateFont(-12,0,0,0,400,0,0,0,GB2312_CHARSET,0,0,0,FF_MODERN,"Arial");
	hFont0 =CreateFont(-48,0,0,0,800,0,0,0,GB2312_CHARSET,0,0,0,FF_MODERN,"黑体");
	m_Fram=0;//
	m_Time = timeGetTime();		
	tim=0;             
	Font=new CGLFont() ;

}
OpenGL::~OpenGL()
{	CleanUp();
}
BOOL OpenGL::SetupPixelFormat(HDC hDC0)
{	int nPixelFormat;				
	hDC=hDC0;
	PIXELFORMATDESCRIPTOR pfd = { 
	    sizeof(PIXELFORMATDESCRIPTOR), 
	    1,                         
	    PFD_DRAW_TO_WINDOW |    
	    PFD_SUPPORT_OPENGL |    
	    PFD_DOUBLEBUFFER,      
	    PFD_TYPE_RGBA,          
	    16,                       
	    0, 0, 0, 0, 0, 0,           
	    0,                        
	    0,                       
	    0,                       
	    0, 0, 0, 0,           
	    16,                          
	    0,                      
	    0,                    
	    PFD_MAIN_PLANE,         
	    0,                     
	    0, 0, 0                   
	}; 
	if (!(nPixelFormat = ChoosePixelFormat(hDC, &pfd)))
		{ MessageBox(NULL,"没找到合适的显示模式","Error",MB_OK|MB_ICONEXCLAMATION);
	      return FALSE;
		}
	SetPixelFormat(hDC,nPixelFormat,&pfd);
	hRC = wglCreateContext(hDC);    
	wglMakeCurrent(hDC, hRC);         
	m_anmobj  =new anmobj();
	m_baiscobj=new baiscobj();
	m_baiscobj->light0();
	return TRUE;
}
void OpenGL::init(int Width, int Height)
{	glViewport(0,0,Width,Height);	
	glMatrixMode(GL_PROJECTION);	
	glLoadIdentity();				
	gluPerspective					
		( 54.0f,						
		  (GLfloat)Width/(GLfloat)Height,
		  0.1f,							
		  3000.0f					
		);

	glMatrixMode(GL_MODELVIEW);			
	glLoadIdentity();			
//	
//====================================================
}
void OpenGL::Render()
{	if(m_baiscobj==NULL) return;
	if(m_anmobj==NULL) return;
	glClearColor(0.0f, 0.0f, 0.3f, 1.0f);	
	glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();					
//////////////////////////////////////////////////////////////////////////
	m_baiscobj->DisplayScene();			

	m_baiscobj->DrawSand();				
	m_baiscobj->CreateSkyBox(3,6,3,6);
	srand(100);
	for(int i=0;i<TREESL;i++) 
	{m_baiscobj->ShowTree(i);

	}
	m_baiscobj->Scene(0,MAP+30,13.6f,-MAP-20, 0,   0,0.35f);
	m_baiscobj->Scene(1,MAP+30,15.0f,-MAP,   70,   r,0.2f); 
	m_baiscobj->Scene(2,MAP+30,12.0f,-MAP,   65,r+90,0.5f); 
	for(i=0;i<RNSHU;i++)               
	{float y;                               
     y= m_baiscobj->GetHeight(m_anmobj->man[i].qd[0],-m_anmobj->man[i].qd[1]);
	 m_anmobj->setman(i,y+1.4f);            
	}

///////////////////////////////////////////////////////
	float xx0=m_baiscobj->g_eye [0]+0.6f*cos(m_baiscobj->rad_xz);//g_eye [0]
	float zz0=m_baiscobj->g_eye [2]+0.6f*sin(m_baiscobj->rad_xz);
	m_mdlobj.DrawModels(xx0,m_baiscobj->GetHeight(xx0,zz0)+1.7
		,zz0,0,0.1f,m_baiscobj->g_Angle,m_baiscobj->g_elev);
//////////////////////////////////////////////////////////////////////////
	m_baiscobj->fire();
	m_baiscobj->plosion();
	text();
	SwapBuffers(hDC);		
}
void OpenGL::CleanUp()
{	 delete[] m_baiscobj;                     
	 delete[] m_anmobj; 
	 wglMakeCurrent(hDC, NULL);               
	 wglDeleteContext(hRC);                
}
///////////////////////////////////////////////////////////////
void OpenGL::text()
{	DWORD Dura =(timeGetTime()-m_Time)/1000;
	if(Dura>0) tim=m_Fram/Dura;
	m_Fram++;
	char str[128];
	sprintf(str, "刷屏: %2d 帧/秒 %s",tim,test);
	Font->settext(300,550,str,hFont,1,1,1.0f);
	Font->settext(418,265,"+",hFont,1,0,0);
}