glmain.cpp

涉及windows游戏编程中的一些源码

/* 
   This file is generated by AppWizard
      Add this string to the project->Setting
kernel32.lib user32.lib gdi32.lib opengl32.lib glu32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib 
			              Stanly Lee Xpert - HeartBlue
                          2002-7-25
*/

#include "Texturemgr.h"
#include "billboardMgr.h"
#include "LOD.h"
#include "Data.h"
#include "map.h"
#include "Terrain.h"
#include "initsence.h"
#include "Console.h"
#include <GL\glext.h>
#include "timer.h"
#include "input.h"
#include "MotionCtrl.h"
#include "MotionBlur.h"
#include "GamaControl.h"
#include "Effect.h"

TCHAR szAppTitle[] = "Power Render 引擎 -- XheartBlue";


bool is_debug=false;
//应用程序对象
CGameApp g_app(szAppTitle);


CGamaControl g_Gama;
CTextureMgr g_tex_mgr;

//场景中的物体
//镜头玄光体
CLensFlar flare;
//2D的BillBoard管理器
C2DBillBoardMgr g_bbm;
//天空体
CSkyBox g_sky;
//地形数据
CTerrain  terrain;
//Level of Detail 控制器
CLOD*      pLOD;
//裁减器
CViewFrustum Culler;
//摄影机对象
CCamera* g_pcm;

//效果器
CMotionBlur g_MBlur;
COverBurtEff g_OverBurt;
CMapPilotEff g_MapPilot;
CGamaEff     g_GamaEff;
CScrapEff    g_ScapEff;
CSnipEff     g_SnipEff;
CCrossEff    g_CrossEff;
//运动控制器
CMotionCtrl g_MCtrl;
//============================================================
//函数声明
LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);
int   RenderSence(LONG fps);
int   GameLoop(LONG fps);
void  Resize();
void  RenderFont(int fps);
RunApp(LPSTR ,int);
//===========================================================

//********************************************
//程序的真正入口点。
//********************************************
int RunApp(LPSTR CmdLine ,int sw_mode)
{


	srand(GetTickCount());


	LoadAppCfg();
    LoadMapCfg();

	
	int w  = Configure.GetInteger("General","screen_w");
	int h  = Configure.GetInteger("General","screen_h");
	int cb = Configure.GetInteger("General","color_depth");
	int df = Configure.GetInteger("General","display_fre");
	BOOL isFullScreen = Configure.GetBool("General","fullscreen");
	
	if(isFullScreen)
		g_app.CreateExcApp(WndProc,w,h);
	else
		g_app.CreateNormalApp(WndProc);
    
	Console.Open();	


	Console.Printf("-------------------------------------------------------------");
	Console.Printf("  大规模室外场景渲染技术Demo");
	Console.Printf("      SimNature Ver 2.2");
	Console.Printf("            作者：潘李亮");
	Console.Printf("          版权所有");
	Console.Printf("     2002 - 2003 ");
	Console.Printf("-------------------------------------------------------------");
	Console.Printf("程序启动");

	if(isFullScreen)
		Console.Printf("使用全屏幕模式");
	else
		Console.Printf("使用窗口模式");

	ifstream in;
	in.open(MapCfg.GetString("Map","mapfile"),ios::in|ios::binary);
	if(in.fail())
	{

		Console.Printf("地图文件不存在，需要创建!");
		Console.Printf("现在开始创建地图，这将要花费很长的时间");
		Console.Printf("地图创建中，请耐心的等待(现在你可以先去喝杯茶^_^)");
		int size  = MapCfg.GetInteger("Map","size");
		RPMAP map = CreateRPMap(size,size,0.132);
		SaveRPMap(map,MapCfg.GetString("Map","mapfile"));
		FreeRPMap(map);

		Console.Printf("地图创建完毕!");
	}
	in.close();

	//=====Console Output===============
	Console.Printf("OpenGL 开始初始化........");
	g_GL.InitOpenGL(g_app.m_hMainWnd);
    
	if(InitMultiTex() == NULL)
	{
		Console.Printf("GL extention 错误: 不支持多遍纹理映射");
		TerminateApp();
	}
	else
		Console.Printf("多遍纹理映射功能初始化成功!");
	//=====Console Output===============
    Console.Printf("OpenGL 初始化成功");

	ApplyConfigure();
	//=====Console Output===============
	Console.Printf("配置文件加载成功!.....");
	
	g_GL.CreateFont();
	//=====Console Output===============
	Console.Printf("字体创建成功!");
	
	
	InitTerrain();
    //=====Console Output===============
	Console.Printf("地形加载成功!");

	InitCamera();
	//=====Console Output===============
	Console.Printf("摄影机设置完毕");

    InitFog();
    //=====Console Output===============
	Console.Printf("雾效果初始化成功");
	InitFlare();
	//=====Console Output===============
	Console.Printf("太阳创建完毕....");
	
	InitSky();
	//=====Console Output===============
	Console.Printf("天空体创建完毕"); 



	RECT region=
	{
		10,10,terrain.GetX()-10,terrain.GetY()-10 
	};
	g_MCtrl.SetInput(&g_Input);
	g_MCtrl.SetTerrain(&terrain);
	g_MCtrl.SetSkyHeight(g_sb_h);
	g_MCtrl.SetCamera(g_pcm);
    g_MCtrl.SetRegion(region);

	terrain.SetCamera(g_pcm);
    Culler.SetCamera(g_pcm); 

    InitBillBoard();
	//=====Console Output===============
	Console.Printf("树木创建完毕");

    glEnable(GL_CULL_FACE);


//===========开始初始化效果器=============================
	
/*******************非常重要*************************
	注意这个时候，窗口的大小还是没有确定的。
	如果你没有为运动模糊的图象纹理指定大小的话。
	你必须在 窗口的大小已经确定的时候，
	调用COpenGL.Resize() & CMotionBlur.Resize函数。
	这个很重要，不然你的程序开启运动模糊的时候会不正常
*******************************************************/
	Console.Printf("开始初始化所有的效果器");
	//初始化Motion Blur
	int blur_x = Configure.GetInteger("Blur","x");
	int blur_y = Configure.GetInteger("Blur","y");
	if(blur_x && blur_y)
	{
		Console.Printf("运动模糊图象大小 : %d X %d ",blur_x,blur_y); 
	    g_MBlur.Create(blur_x,blur_y);
	}
	else
	{
		Console.Printf("运动模糊图象大小和屏幕（窗口相同大小）"); 
	}
    Console.Printf("运动模糊因子: %f",Configure.GetFloat("Blur","value")); 
    g_MBlur.SetBlurValue(Configure.GetFloat("Blur","value"));  

    Console.Printf("MotioN blur初始化完毕"); 

//把其它的效果器加到链中。注意，MotionBlur就是这个链的开始。
    g_MBlur.AddEffect(&g_OverBurt);
    Console.Printf("加入过度燃烧效果器");


    g_SnipEff.Create(g_tex_mgr.LoadTexture(Configure.GetString("Snip","mask")));
	g_MBlur.AddEffect(&g_SnipEff);
	g_SnipEff.SetEffect(0); 
	
//	g_MBlur.AddEffect(&g_CrossEff);
//	g_CrossEff.SetEffect(0);

	g_MapPilot.SetTerrainSize(terrain.GetX(),terrain.GetY());   
	g_MapPilot.SetCamraInfo(g_pcm);
	g_MapPilot.SetTerrainTex(terrain.GetTexArray()[0]);
	g_MBlur.AddEffect(&g_MapPilot);
    Console.Printf("加入地图导航器");

	g_MBlur.AddEffect(&g_GamaEff);
	Console.Printf("加伪Gama控制效果器");

	g_ScapEff.SetEffect(TRUE);
	g_MBlur.AddEffect(&g_ScapEff);

	Console.Printf("所有的效果器初始化完毕");


 //=============所有的效果器初始化完毕=========================  

	if(isFullScreen)
	{

		//=====Console Output===============
		Console.Printf("全屏幕设置，宽: %d高:%d 色深:%d 刷新率: %d",w,h,cb,df);
		g_app.SetDisplayMode(w,h,cb,df);
	}




    //=====Console Output===============
	Console.Printf("开始运行程序.......");
	Console.Printf("关闭控制台！");
	Console.Close();


//=======所有的东西初始化完毕，启动程序=============================
	g_app.ShowWindow(sw_mode);

	g_app.Run();
	ShowCursor(FALSE);
	SetCursorPos(400,400);
    
	//改变窗口的大小
	g_GL.Resize(); 
	g_pcm->Project(g_GL.m_view_factor);
	g_MBlur.Resize();
   
	//用一个亮度控制器产生一种渐渐显现的效果
	for(float ga=0.02;ga<0.98;ga += 0.01)
	{
		CTimer::UpdateTime();
		g_Input.Update();
		g_MCtrl.Move();
		g_MBlur.BeginRender(); 
		RenderSence(0);
		g_Gama.SetGama(ga); 
		g_Gama.Apply();
		g_GL.SwapBuffer(); 
	}

	//MessageBox(NULL,"","",MB_OK);
	g_app.MainLoop(GameLoop);

	Console.SaveToLogFile();
    Console.Clear();

	g_GL.ReleaseFont();
	g_GL.ReleaseGL();

	ShowCursor(TRUE);
	Configure.FreeData();
	MapCfg.FreeData();
	return 1;
}

int GameLoop(LONG fps)
{
	CTimer::UpdateTime();
	g_Input.Update();
	g_MCtrl.Move();
	g_MBlur.BeginRender(); 
	//Render the sence
	//RenderSence(fps);
	g_MBlur.Render(RenderSence,fps);
    RenderFont(fps);
	g_GL.SwapBuffer(); 
	return fps;
}

int RenderSence(LONG fps)
{


	//初始化绘制场景
	glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
	//===========================================================
	//应用摄影机
	g_pcm->Look();
	//从摄影机信息更新裁剪器。
	Culler.UpdateCamera(); 
	//天空体
	g_sky.Draw();
	//画地形 数据
	terrain.Render();
	//=======================================================================
	//〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉
	//以下是透明物体的绘制
	//〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉〈〉
	//=======================================================================
	if(is_bb_draw)
	{
		g_bbm.Draw();
	}
	//画眩光物体----太阳
	flare.Draw();
	//屏幕信息的绘制

	return fps;
}
void RenderFont(int fps)
{
	char buf[255];
	glColor4f(1.0,1.0,1.0,1.0);
	g_GL.BeginRenderFont(); 
	sprintf(buf,"Fps: %d ",fps);
	g_GL.RenderFont(buf,-90,-75);
	sprintf(buf,"Object/Space Error %g/%g",g_object_error,g_space_error);
	g_GL.RenderFont(buf,-90,-85);
#ifdef _COUNT_TRIAN_COUNT
	sprintf(buf,"Traingls Number: %d",(int)pLOD->GetTrianglesCount());
	g_GL.RenderFont(buf,-90,-95);
#endif
	g_GL.EndRenderFont();
}
void ReProject(float a)
{
	
	      RECT rt;
		  GetClientRect(g_app.m_hMainWnd,&rt);
		  glMatrixMode(GL_PROJECTION);
		  glLoadIdentity();
		  gluPerspective(a,float(rt.right -rt.left)/(rt.bottom  - rt.top),0.1,10000);
		  glMatrixMode(GL_MODELVIEW);
}

LRESULT CALLBACK	WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	static int  ox,oy;
	static int  tex = 1;
	static bool is_move=false;
	static bool is_Grid = false;
	switch(msg)
	{
	case WM_RBUTTONDOWN:
		{
			g_pcm->Zoomed(!g_pcm->IsZoomed());
			float f= 0.6*g_pcm->GetViewerAngle()/g_pcm->GetZoomAngle();
			
			if(g_pcm->IsZoomed())
			{
				pLOD->SetObjectError(pLOD->GetObjectError()*f);
				//Culler.m_view_dist *= f;
			}
			else
			{
				pLOD->SetObjectError(pLOD->GetObjectError()/f);
				//Culler.m_view_dist /= f;
			}
			
			g_pcm->Project(g_GL.m_view_factor);
		}
		break;
	case WM_CREATE:
	case WM_SIZE:
	case WM_MOVE:
		g_GL.Resize();
		if(g_pcm)
			g_pcm->Project(g_GL.m_view_factor);
		break;
	case WM_KEYDOWN:
	switch(wParam)
		{
		case VK_RETURN:
			is_Grid = !is_Grid;
			pLOD->EnableGridRender(is_Grid); 
		break;
	    case VK_SPACE:
			g_is_detail_tex = ! g_is_detail_tex;
			pLOD->EnableDetailTex(g_is_detail_tex); 
		break;
		case VK_HOME:
			g_object_error += 0.01;
			pLOD->SetObjectError(g_object_error); 
		break;
		case VK_END:
			if(g_object_error >0.1)
				g_object_error -= 0.01;
			pLOD->SetObjectError(g_object_error); 
			break;
		case VK_INSERT:
			if(g_space_error<500)
				g_space_error += 0.2;
			pLOD->SetSpaceError(g_space_error); 
			break;
		case VK_DELETE:
			if(g_space_error>1)
				g_space_error -= 0.2;
			pLOD->SetSpaceError(g_space_error); 
			break;

		case VK_PRIOR:
			g_MBlur.SetBlurValue(g_MBlur.GetBlurValue() + 0.02); 
			break;
		case VK_NEXT:
			g_MBlur.SetBlurValue(g_MBlur.GetBlurValue() - 0.02); 
			break;

		case VK_ESCAPE:
			{
				float d = 0.02;
				if(rand()%2)
					d = -d;
			    for(float ga=1.;ga > 0 && ga< 2;ga -= d)
				{
					CTimer::UpdateTime();
					g_Input.Update();
					g_MCtrl.Move();
					g_MBlur.BeginRender(); 
					RenderSence(0);
					g_Gama.SetGama(ga); 
					g_Gama.Apply();
					g_MBlur.Render();
					g_GL.SwapBuffer(); 
				}
			}
		   PostQuitMessage(0);
		   break;


		case VK_F2:
			g_ScapEff.Scrap();
			break;
		case VK_F3:
			g_isFog =!g_isFog;
			if(g_isFog)
				glDisable(GL_FOG);
			else
				glEnable(GL_FOG);
			
		   break;  
		   
		case VK_F4:
			g_MCtrl.EnableAutoPilot(!g_MCtrl.IsAutoPilot());
			break;
		case VK_F5:
			g_MBlur.SetEffected(!g_MBlur.IsEffected());  
			break;
		case VK_F6:
			g_MapPilot.SetEffect(!g_MapPilot.IsEffect());  
			break;
		case VK_F7:
			g_OverBurt.SetEffect(!g_OverBurt.IsEffect());
			break;
		case VK_F8:
			g_GamaEff.SetEffect(!g_GamaEff.IsEffect());
			break;
		case VK_F9:
			g_SnipEff.SetEffect(!g_SnipEff.IsEffect()&&g_pcm->IsZoomed());
			break;
		case VK_F10:
			g_CrossEff.SetEffect(!g_CrossEff.IsEffect());
			break;
		case VK_F12:
			pLOD->SetLodMethod(pLOD->GetLodMethod() + 1 ) ;
			break;
		case VK_ADD:
			pLOD->IncreaseTexDetail(1);
			break;
		case VK_SUBTRACT:
			pLOD->IncreaseTexDetail(-1);
			break;
		case 'T':
			pLOD->ChangeDetailTex(tex++);
			break;
		case 'B':
			is_bb_draw = !is_bb_draw;  
			break;
		case 'F':
			glPolygonMode(GL_FRONT,GL_LINE);
			glPolygonMode(GL_BACK,GL_LINE);
			break;
		case 'C':
			glPolygonMode(GL_FRONT,GL_FILL);
			glPolygonMode(GL_BACK,GL_FILL);
			break;
		case 'P':
			terrain.Strecth(1.2);
			break;
		case 'L':
			terrain.Strecth(0.9);
			break;
		case 'O':
			g_OverBurt.SetValue(g_OverBurt.GetValue() + 0.01);
			break;
		case 'K':
			g_OverBurt.SetValue(g_OverBurt.GetValue() - 0.01);
			break;
		}
		break;
	case WM_CHAR:
		switch(wParam)
		{
		case ',':
			g_GamaEff.SetValue(g_GamaEff.GetValue()-0.02);
			break;
		case '.':
			g_GamaEff.SetValue(g_GamaEff.GetValue()+0.02);
			break;
		}
		break;
    case WM_CLOSE:
		DestroyWindow(hWnd);
		break;
	case WM_DESTROY:
        PostQuitMessage(0);
		break;
	default:
		return ::DefWindowProc(hWnd,msg,wParam,lParam); 
	}
   return 1;

}