//
//?Standard?C++?headers?used?by?this?program
//
#include???//?console?I/O
#include????//?file?I/O
#include????//?string?streams

//
//?Headers?needed?by?OpenGL.?The?glew?header?must?come?first.
//
#include?
#include?

#define?VA_POSITION?????0
#define?VA_COLOR????????1
#define?BUFFER_OFFSET（i）?（（void*）（i））
#define?GETRAND	（（float）rand（）/（float）RAND_MAX）

unsigned?frameCount?=?0;

float?g_vertexData[]?=?{
??????????-0.4f?-0.4f??0.0f?0.0f?0.0f
???????????0.4f?-0.4f??0.0f?0.0f?0.0f
???????????0.0f??0.1f??0.0f?1.0f?0.0f

???????????-0.3f?0.0f??0.0f?0.0f?0.0f
???????????0.3f??0.0f??0.0f?0.0f?0.0f
???????????0.0f??0.4f??0.0f?1.0f?0.0f

???????????-0.2f?0.3f??0.0f?0.0f?0.0f
???????????0.2f??0.3f??0.0f?0.0f?0.0f
???????????0.0f??0.65f??0.0f?1.0f?0.0f

???????????-0.05f?-0.4f??0.5f?0.25f?0.0f
???????????0.05f?-0.4f???0.5f?0.25f?0.0f
???????????-0.05f?-0.7f??0.0f?0.0f?0.0f
???????????0.05f?-0.7f??0.0f?0.0f?0.0f

??????????-1.0f?-0.7f??1.0f?1.0f?1.0f
???????????1.0f?-0.7f??1.0f?1.0f?1.0f
??????????-1.0f?-1.0f??0.5f?0.25f?0.0f
???????????1.0f?-1.0f??0.5f?0.25f?0.0f


????};

float?l_vertexData[]?=?{
??????????0.3f??0.55f??1.0f?0.65f?0.0f
??????????0.5f??0.7f???1.0f?1.0f?0.0f
??????????0.25f??0.7f??0.0f?1.0f?0.0f
??????????0.45f??0.55f??1.0f?0.0f?1.0f
??????????0.375f??0.775f?1.0f?0.0f?0.0f

};

unsigned?short?l_indexData[]?=?{

????????0?1
????????1?2
????????2?3
????????3?4
????????4?0

};


float?p_vertexData[]?=?{
????????
????????-0.4f?-0.4f??1.0f?0.65f?0.0f
???????????0.4f?-0.4f??1.0f?1.0f?0.0f
???????????0.0f?-0.4f???1.0f?0.75f?0.8f

????????????-0.3f?0.0f??0.0f?1.0f?1.0f
???????????0.3f??0.0f??1.0f?0.0f?1.0f
???????????0.0f?0.0f??1.0f?1.0f?0.0f
???????
????????????-0.2f?0.3f??1.0f?1.0f?1.0f
???????????0.2f??0.3f??0.2f?0.8f?0.2f
???????????0.0f??0.65f??1.0f?0.0f?0.0f
???????????0.0f?0.3f??0.0f?1.0f?0.0f
};

//
//?Function?prototypes.?These?tell?the?compiler?that?these?function?exist?somewhere?in?the?code.
//


//?the?function?that?initializes?everything
bool?Initialize（int?argc?char*?argv[]）;

//?helper?functions?that?initialize?specific?components
bool?InitWindow（int?argc?char*?argv[]）;
bool?InitExtensions（）;
bool?InitGeometry（）;
bool?InitShaders（）;
bool?InitScene（）;

//?callback?functions?that?freeglut?will?call?once?it?enters?the?main?loop
void?Resize（int?w?int?h）;
void?Render（）;
void?Cleanup（）;
void?TimerFunction1（int?Value）;
void?KeyPressed（unsigned?char?key?int?x?int?y）;

//?functions?for?cleaning?up?specific?components
void?DeleteGeometry（）;
void?DeleteShaders（）;

//?function?that?reads?a?text?file?and?returns?it?as?a?string
std::string??ReadTextFile（std::string?path）;

//?function?that?loads?a?shader?from?a?