游戏引擎

开发平台：
Visual C++

HeightmapScene.cpp：源码内容
							// HeightmapScene.cpp: implementation of the CHeightmapScene class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "HeightmapScene.h"
#include "Text.h"
#include <stdio.h>
#include "texture.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CHeightmapScene::CHeightmapScene()
{
	m_pInput=NULL; /////only quote, need't release memory
	m_gamma=0.2f;
	m_brightness=0;
}
CHeightmapScene::~CHeightmapScene()
{
}
bool  CHeightmapScene::InitHeightmapScene(INPUT *pInput)
{
	m_pInput=pInput;   //指向3dExplorer.cpp中的全局变量Input
	if(!m_cText.InitRasterText())
	{
		MessageBox(0, "cText error", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}
	if(!m_cSkyBox.InitSkyBox(10000,7000,10000,0,-1200,0))
	{
		MessageBox(0, "cSkyBox error", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}    
	if(!m_3dExplorer.Init3dExplorer(VERTEX(700,200,1340),300,true))//450,200,66),157,
	{
		MessageBox(0, "read heightmap failed", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}
	if(!m_cTerrain.InitTerrain())
	{
		MessageBox(0, "Init Terrain failed heightmapscene.cpp", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}	
	if(!m_cLensFlare.InitLensFlare())
	{
		MessageBox(0, "Init LensFlare failed", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}
	
	if(!m_cSprites.InitSpriteManager())
	{
		MessageBox(0, "Init Terrain failed", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}
	if(!m_cHouse.InitHouse(VERTEX(820,m_cHmap.GetHeight(820,1250)-1 ,1250)))
	{
		MessageBox(0, "Init house failed", "Error", MB_OK | MB_ICONERROR);
		return FALSE;
	}
	return true;
}
void  CHeightmapScene::RenderHeightmapScene()
{
	glColor3f(1,1,1);
	m_3dExplorer.ProcessInput(m_pInput);
    glDisable(GL_LIGHTING);
    glDisable(GL_LIGHT0);
	m_3dExplorer.TransformWorld(0);
    m_cSkyBox.DrawSkyBox(); 
   	m_3dExplorer.TransformWorld(1);
    m_3dExplorer.Update3dEAmmo();
    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);
	GLfloat light0_position[]={1.0f,0.5f,-0.8f,0.0f};
	glLightfv(GL_LIGHT0,GL_POSITION,light0_position);
    glEnable(GL_FOG);
	//画地形
	m_cTerrain.UpdateTerrainmap();
    ///////////////now render scene
    m_cTerrain.RendTerrain();
    //////////////////////////
	m_cTerrain.RestoreDrawMap();
    glDisable(GL_FOG);
	///////////////////house
    m_cHouse.DrawHouse();
    
    //////////////////////////////////
    glDisable(GL_LIGHTING);
    glDisable(GL_LIGHT0);
	m_cSprites.UpdateSpriteManager();
	m_cLensFlare.UpdateLensFlare();
	m_3dExplorer.m_cAmmoManager.DrawAmmoManager();
	m_3dExplorer.m_cAmmoManager.UpdateAmmoManager();
    //////////////////////////////////////////
	glColor3f(1,1,1);
	glLoadIdentity();
    //	显示文字信息
	char infoStr[64];
	m_cText.ShowInformation();
	sprintf(infoStr,"%.2f %d %d %d %d %d",m_gamma,m_cTerrain.GetNumTriangles() ,
		                       int(m_3dExplorer.m_RotY) ,
							   int(m_3dExplorer.m_eyePos.xpos),
							   int(m_3dExplorer.m_eyePos.ypos),
							   int(m_3dExplorer.m_eyePos.zpos));
	glRasterPos3f(0.1f,0.6f,-1.2f);
	m_cText.PrintString(infoStr);
    
	/*
	///////////// 伪Gamma调节
	if(m_pInput->keys['A'])m_gamma+=0.01f;
	if(m_pInput->keys['S'])m_gamma-=0.01f;
	if(m_pInput->keys['Q'])return;
	if(m_gamma<0)m_gamma=0;
	if(m_gamma>1)m_gamma=1;
	glColor3f(m_gamma,m_gamma,m_gamma);
	glDisable(GL_TEXTURE_2D);
 	glBlendFunc(GL_SRC_COLOR,GL_ONE);
	glEnable(GL_BLEND);
	float size=1.45f;
	glBegin(GL_QUADS);
	    glVertex3f(-size,-size, -1.1f);
	    glVertex3f( size,-size, -1.1f);
	    glVertex3f( size, size, -1.1f);
	    glVertex3f(-size, size, -1.1f);
    glEnd();
	
	///////////////////////
	if(m_brightness<1)
	{
 	glBlendFunc(GL_ZERO,GL_SRC_COLOR);
	glColor3f(m_brightness,m_brightness,m_brightness);
	glBegin(GL_QUADS);
	    glVertex3f(-size,-size, -1.05f);
	    glVertex3f( size,-size, -1.05f);
	    glVertex3f( size, size, -1.05f);
	    glVertex3f(-size, size, -1.05f);
    glEnd();
        m_brightness+=0.04f;
	}
	glDisable(GL_BLEND);
*/
}

						