#include?
#include?
#include?
#include?
#define?NO_LIGHT?1
#define?LIGHT?2
bool?bLight?=?false;
struct?Vector
{
	float?fx?fy?fz;
};
struct?Color
{
	float?Ir?Ig?Ib;/*定義皮球的顏色*/
};
float?KaIa;
float?Kd?n;
Vector?Hlight;
Color?mLight?mColor;
int?cx=30cy=200cr=30;/*定義皮球開始運動時的水平位置，下落高度和體積大小*/
int?windowswidth?=?850windowshight?=?400;/*定義顯示框的寬度和高度*/
int?xstep=0ystep=0flag=10up=0;
float?vh?=4g=9.8h=cy;
void?Init（）
{
	float?mo;
	Vector?eye;
	mLight.Ir?=?210;
	mLight.Ig?=210;
	mLight.Ib?=30;/*定義皮球的顏色*/
	KaIa=100;
	Kd?=?0.7;
	n?=?10;
	light.fx=0.10;light.fy=0.50;
	light.fz?=?sqrt（1-（light.fx*light.fx）-（light.fy*light.fy））;
	eye.fx=1;eye.fy=0;eye.fz=1;
	H.fx=light.fx+eye.fx;
	H.fy=light.fy+eye.fy;
	H.fz=light.fz+eye.fz;
	mo=sqrt（H.fx*H.fx+H.fy*H.fy+H.fz*H.fz）;
	H.fx=（H.fx/mo）;H.fy=（H.fy/mo）;H.fz=（H.fz/mo）;
	H.fx=（H.fx/mo）;H.fy=（H.fy/mo）;H.fz=（H.fz/mo）;
	glClearColor（2.0?1.0?3.0?5.0）;
	glShadeModel（GL_SMOOTH）;
}
Color?Phong（int?x0?int?y0?int?r?int?x?int?y）
{
	Vector?N;
	float?zalphathetaKs;
	Ks=1.0-Kd;
	z=sqrt（（float）（r*r-（x-x0）*（x-x0）-（y-y0）*（y-y0）））;
	N.fx=（x-x0）*1.0/r;
	N.fy=（y-y0）*1.0/r;
	N.fz?=?z*1.0/r;
	theta?=?N.fx?*?light.fx?+?N.fy?*?light.fy?+?N.fz?*?light.fz;
	if（theta<0）
		theta=0;
	alpha=H.fx*N.fx+H.fy*N.fy+H.fx*N.fz;
	if（alpha<0）
		alpha=0;
	mColor.Ir=KaIa+mLight.Ir*Kd*theta+mLight.Ir*Ks*pow（alphan）;
	mColor.Ig=KaIa+mLight.Ig*Kd*theta+mLight.Ig*Ks*pow（alphan）;
	mColor.Ib=KaIa+mLight.Ib*Kd*theta+mLight.Ib*Ks*pow（alphan）;
	return?mColor;
}
void?MidCircle（int?x0?int?y0?int?r）???/*中點畫圓算法定義圓的圓心坐標和半徑*/
{
	int?xydeltaxdeltayd;
	x?=?0;
	y?=?r;
	deltax?=?5;
	deltay?=?5-r-r;
	d?=?1-r;
	glColor3f?（1.0f?1.0f?1.0f）;?
	glBegin（GL_POINTS）;
	glVertex2i?（x+x0y+y0）;
	glVertex2i?（-x+x0y+y0）;
	glVertex2i?（-x+x0-y+y0）;
	glVertex2i?（x+x0-y+y0）;
	glVertex2i?（y+y0?x+x0）;
	glVertex2i?（y+y0?-x+x0）;
	glVertex2i?（-y+y0?-x+x0）;
	glVertex2i?（-y+y0?x+x0）;
	
	while（x	{
		if（d<0）
		{
			d?+=?deltax;
			deltax?+=?2;
			deltay?+=?2;
			x++;
		}
		else
		{
			d?+=?deltay;
			deltax?+=?2;
			deltay?+=?4;
			x++;
			y--;
		}		
		glVertex2i?（x+x0y+y0）;
		glVertex2i?（-x+x0y+y0）;
		glVertex2i?（-x+x0-y+y0）;
		glVertex2i?（x+x0-y+y0）;
		glVertex2i?（y+y0?x+x0）;
		glVertex2i?（y+y0?-x+x0）;
		glVertex2i?（-y+y0?-x+x0）;
		glVertex2i?（-y+y0?x+x0）;
	}
	glEnd（）;
}
void?MidCircleLight（int?x0?int?y0?int?r）
{
	int?xydeltaxdeltayd;
	x?=?0;
	y?=?r;
	deltax?=?3;
	deltay?=?5-r-r;
	d?=?1-r;
	int?i=0;?
	glBegin（GL_POINTS）;
	{
		for（?i=-x;i<=x;i++）
		{
			mColor=Phong（x0y0ri+x0y+y0）;
			glColor3ub?（mColor.Ir?mColor.Ig?mColor.Ib）;
			glVertex2i?（i+x0y+y0）;
			glColor3ub?（mColor.Ir?mColor.Ig?mColor.Ib）;
			glVertex2i?（i+x0-y+y0）;
		}
		for（i=-y;i<=y;i++）
		{
			mColor=Phong（x0y0ri+x0x+y0）;
			glColor3ub?（mColor.Ir?mColor.Ig?mColor.Ib）;?
			glVertex2i?（i+x0x+y0）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????41984??2010-06-30?19:32??運動球\abc.ncb

?????文件???????1238??2010-06-30?19:31??運動球\abc.plg

?????文件???????5490??2010-06-30?19:31??運動球\abc.cpp

?????文件???????3365??2010-06-30?19:31??運動球\abc.dsp

?????文件??????48640??2010-06-30?19:32??運動球\abc.opt

?????文件????????531??2010-06-30?19:32??運動球\abc.dsw

?????文件??????53248??2010-06-30?19:31??運動球\Debug\vc60.pdb

?????文件?????451584??2010-06-30?19:31??運動球\Debug\abc.pdb

?????文件??????19557??2010-06-30?19:31??運動球\Debug\abc.obj

?????文件?????196648??2010-06-30?19:31??運動球\Debug\韓瑞龍.exe

?????文件?????120320??2011-06-19?20:34??運動球\圖形學課程設計.doc

?????目錄??????????0??2010-06-30?19:33??運動球\Debug

?????目錄??????????0??2010-06-30?19:33??運動球

-----------?---------??----------?-----??----

???????????????942605????????????????????13