/*
?*?WireframeScene.c
?*
?*?Author:?Samuel?R.?Buss
?*
?*?Bug?reports:?Sam?Buss?sbuss@ucsd.edu.
?*?
?*?base?code?for?homework?project?#3?Math?155A?Spring?2005
?*
?*?USAGE:???Please?keep?these?controls?in?your?homework?assignment!!!?（請保持以下控制不變!!!）
?*
?*????Press?arrow?keys?to?control?view?position.?（用方向鍵控制視點位置）
?*	??left?and?right?keys?rotate?the?viewpoint?left?and?right?（向左和向右箭頭分別將視點向左和向右旋轉）
?*	??Up?and?down?keys?rotate?viewpoint?up?and?down?（up?to?80?degrees）.（向上和向下箭頭分別將視點向上和向下旋轉（最多轉80度））
?*
?*????Press?“R“?key?to?make?step?size?bigger?（if?moving?too?slowly）?（按“R“鍵使得步長增大（如果覺得移動太慢的話按此鍵））
?*????Press?“r“?key?to?make?step?size?smaller?（if?moving?too?fast）.（按“r“鍵使得步長減?。ㄈ绻X得移動太快的話按此鍵））
?*
?*????Press?“w“?key?to?toggle?wireframe?mode?on?and?off?（按“w“鍵來切換線框模式開關）
?*????
?*????Press?“M“??“m“?to?increase?decrease?Mesh?Resolution?（按“M““m“鍵來增加或減小網格分辨率）
?*
?*????Press?“c“?to?toggle?culling?backfaces.（按“c“來剔除背面）
?*??
?*	??Press?ESCAPE?to?exit.（按ESC鍵退出）
?*
?*/

#include?			//?For?math?routines?（such?as?sqrt?&?trig）.?（為使用數(shù)學函數(shù)（如sqrt和trig））
#include?
#include?		//?For?the?“exit“?function?（為使用exit函數(shù)）
#include?		//?OpenGL?Graphics?Utility?Library
#include?“WireframeScene.h“

//?The?next?global?variable?controls?the?animation‘s?state?and?speed.（下面的全局變量控制動畫的狀態(tài)和速度）
float?RotateAngle?=?0.0f;		//?Angle?in?degrees?of?rotation?around?y-axis?（繞y軸旋轉的角度）
float?Azimuth?=?0.0;			//?Rotated?up?or?down?by?this?amount?（向上或向下旋轉的角度）
float?AngleStepSize?=?3.0f;		//?Step?three?degrees?at?a?time?（旋轉視點時步長為3度）
const?float?AngleStepMax?=?10.0f;?//?步長最大值
const?float?AngleStepMin?=?0.1f;??//?步長最小值

//?Some?global?state?variables?（一些全局狀態(tài)變量）
int?MeshCount?=?6;				//?The?mesh?resolution?for?the?mushroom?top?（蘑菇頂?shù)木W格分辨率）
int?WireframeOn?=?1;			//?==?1?for?wire?frame?mode?（==1時為線框模式）
int?CullBackFacesOn?=?0;		//?==?1?if?culling?back?faces.（==1時剔除背面）
const?int?MeshCountMin?=?3;?//?網格分辨率最小值

//?Animation?（動畫相關的控制變量）
const?float?timeStep?=?0.01;
float?t?=?0;

//?glutKeyboardFunc?is?called?below?to?set?this?function?to?handle
//		all?“normal“?key?presses.（處理普通按鍵事件的函數(shù)）
void?myKeyboardFunc（?unsigned?char?key?int?x?int?y?）
{
	switch?（?key?）?{
	case?‘c‘://?面剔除
		CullBackFacesOn?=?1-CullBackFacesOn;
		if?（?CullBackFacesOn?）?{
			glEnable（?GL_CULL_FACE?）;				//?Enable?culling?of?back?faces?（開啟面剔除（initRendering函數(shù)中已設置了剔除背面））
		}
		else?{
			glDisable（?GL_CULL_FACE?）;				//?Show?all?faces?（front?and?back）（關閉面剔除，即顯示所有面）
		}
		glutPostRedisplay（）;
		break;
	case?‘m‘://?減小網格分辨率
		MeshCount?=?（MeshCount>MeshCountMin）???MeshCount-1?:?MeshCount;
		glutPostRedisplay（）;
		break;
	case?‘M‘://?增加網格分辨率
		MeshCount?++;
		glutPostRedisplay（）;
		break;
	case?‘w‘:?//?切換線框模式
		WireframeOn?=?1-WireframeOn;
		if?（?WireframeOn?）?{
			glPolygonMode?（?GL_FRONT_AND_BACK?GL_LINE?）;		//?Just?show?wireframes?（開啟線框模式（通過設置多邊形顯示模式為GL_LINE））
		}
		else?{
			glPolygonMode?（?GL_FRONT_AND_BACK?GL_FILL?）;		//?Show?sol

?屬性????????????大小?????日期????時間???名稱
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?????文件??????40960??2010-06-23?02:25??STY孫滔佑?實驗四\Debug\STY.exe

?????文件?????662516??2010-06-23?02:25??STY孫滔佑?實驗四\Debug\STY.ilk

?????文件?????478208??2010-06-23?02:25??STY孫滔佑?實驗四\Debug\STY.pdb

?????文件???????6570??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug\BuildLog.htm

?????文件?????????67??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug\mt.dep

?????文件????????663??2010-06-23?01:54??STY孫滔佑?實驗四\STY\Debug\STY.exe.embed.manifest

?????文件????????728??2010-06-23?01:54??STY孫滔佑?實驗四\STY\Debug\STY.exe.embed.manifest.res

?????文件????????621??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug\STY.exe.intermediate.manifest

?????文件??????93184??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug\vc90.idb

?????文件??????69632??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug\vc90.pdb

?????文件??????43948??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug\WireframeScene.obj

?????文件???????3986??2010-06-23?01:44??STY孫滔佑?實驗四\STY\STY.vcproj

?????文件???????1427??2010-06-23?09:34??STY孫滔佑?實驗四\STY\STY.vcproj.SUNTAOYO-4DEB7C.suntaoyou.user

?????文件??????14048??2010-06-23?02:25??STY孫滔佑?實驗四\STY\WireframeScene.cpp

?????文件????????460??2010-05-28?10:00??STY孫滔佑?實驗四\STY\WireframeScene.h

?????文件?????625664??2010-06-23?09:34??STY孫滔佑?實驗四\STY.ncb

?????文件????????875??2010-06-23?01:40??STY孫滔佑?實驗四\STY.sln

????..A..H.??????9216??2010-06-23?09:34??STY孫滔佑?實驗四\STY.suo

?????目錄??????????0??2010-06-23?02:25??STY孫滔佑?實驗四\STY\Debug

?????目錄??????????0??2010-06-23?02:23??STY孫滔佑?實驗四\Debug

?????目錄??????????0??2010-06-23?02:25??STY孫滔佑?實驗四\STY

?????目錄??????????0??2010-06-23?09:33??STY孫滔佑?實驗四

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