//?a?bouncing?ball
//?Ping-Che?Chen
#define?GLUT_DISABLE_ATEXIT_HACK

#include?
#include?
#include?
#include?

#ifndef?M_PI
#define?M_PI?3.1415926535897932384626433832795
#endif

#ifndef?WIN32
#include?
typedef?clock_t?my_clock_t;
#else
#define?WIN32_LEAN_AND_MEAN
#include?

typedef?LONGLONG?my_clock_t;
#endif

const?char*?title?=?“ball“;

//?number?bitmaps
const?GLubyte?number[12][8]?=?{
	{?0x00?0x7C?0xE6?0xF6?0xDE?0xCE?0xC6?0x7C?}	//?0
	{?0x00?0xFC?0x30?0x30?0x30?0x30?0x70?0x30?}?//?1
	{?0x00?0xFC?0xCC?0x60?0x38?0x0C?0xCC?0x78?}?//?2
	{?0x00?0x78?0xCC?0x0C?0x38?0x0C?0xCC?0x78?}?//?3
	{?0x00?0x1E?0x0C?0xFE?0xCC?0x6C?0x3C?0x1C?}?//?4
	{?0x00?0x78?0xCC?0x0C?0x0C?0xF8?0xC0?0xFC?}?//?5
	{?0x00?0x78?0xCC?0xCC?0xF8?0xC0?0x60?0x38?}?//?6
	{?0x00?0x30?0x30?0x30?0x18?0x0C?0xCC?0xFC?}?//?7
	{?0x00?0x78?0xCC?0xCC?0x78?0xCC?0xCC?0x78?}?//?8
	{?0x00?0x70?0x18?0x0C?0x7C?0xCC?0xCC?0x78?}?//?9
	{?0x00?0x30?0x30?0x00?0x00?0x00?0x00?0x00?}?//?.
	{?0x00?0x00?0x00?0x00?0x00?0x00?0x00?0x00?}	//?others
};

//?display?lists
GLuint?box;
GLuint?sphere;
GLuint?fonts;
GLuint?wall;

//?viewer?position
const?GLdouble?eye[3]?=?{?0.5?1.5f?5?};
const?GLdouble?center[3]?=?{?0?1.5f?0?};

//?light
GLfloat?light_pos[4]?=?{?2?3?4?0?};

//?color
const?GLfloat?color_box[3]?=?{?0.7f?0.4f?0.1f?};
const?GLfloat?color_sphere[3]?=?{?0.3f?0.1f?0.9f?};
const?GLfloat?color_shadow[3]?=?{?0.3f?0.3f?0.3f?};
const?GLfloat?color_wall[3]?=?{?0.6f?0.3f?0.4f?};

//?ground?parameter?（Ax?+?By?+?Cz?+?D?=?0）
const?GLfloat?ground_parameter[4]?=?{?0?1?0?0?};
const?GLfloat?wall_parameter1[4]?=?{?0?0?1?4?};
const?GLfloat?wall_parameter2[4]?=?{?1?0?0?4?};

//?clip?planes
const?GLdouble?plane0[4]?=?{?0?0?1?4?};
const?GLdouble?plane1[4]?=?{?1?0?0?4?};
const?GLdouble?plane2[4]?=?{?0?1?0?0?};

//?shadow?matrix
GLfloat?shadow_matrix[4][4];
GLfloat?shadow_matrix1[4][4];
GLfloat?shadow_matrix2[4][4];

//?ball?position
GLfloat?ball_t?=?0;

my_clock_t?last_time?timer_frequency?last_sec_time;
int?frame_no?=?0;
bool?odd_frame?=?false?z_trick?=?false;
float?fps?=?0;

my_clock_t?get_system_time（）
{
#ifdef?WIN32
	LARGE_INTEGER?r;
	QueryPerformanceCounter（&r）;
	return?r.QuadPart;
#else
	struct?timeval?t;
	gettimeofday（&t?NULL）;
	return?t.tv_sec?*?1000?+?t.tv_usec?/?1000;
#endif
}

void?set_up_system_time（）
{
#ifdef?WIN32
	LARGE_INTEGER?r;

	QueryPerformanceFrequency（&r）;
	if（r.QuadPart?==?0）?{
		throw?“Timer?is?not?available“;
	}

	timer_frequency?=?r.QuadPart;
#else
	timer_frequency?=?1000;
#endif

	last_sec_time?=?last_time?=?get_system_time（）;
}

void?generate_box（GLuint?p?GLfloat?width?GLfloat?height?GLfloat?depth）
{
	GLfloat?x?y?z;

	x?=?width?/?2;
	y?=?-height;
	z?=?depth?/?2;

	glNewList（p?GL_COMPILE）;

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

?????文件??????11034??2013-10-14?18:41??shadow\ball_shadow.cpp

?????文件???????4180??1999-08-18?03:17??shadow\ball_shadow.dsp

?????文件????????545??1999-06-28?02:32??shadow\ball_shadow.dsw

?????文件??????40960??2000-06-08?03:01??shadow\ball_shadow.exe

?????文件??????50176??2013-12-18?17:05??shadow\ball_shadow.ncb

?????文件??????78848??2013-12-18?17:05??shadow\ball_shadow.opt

?????文件???????1206??2013-12-18?17:03??shadow\ball_shadow.plg

?????文件?????169984??1998-08-18?16:25??shadow\glut32.dll

?????目錄??????????0??2013-12-18?17:03??shadow\Debug

?????目錄??????????0??2013-12-18?17:05??shadow

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

???????????????356933????????????????????10