#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <GL/glx.h>
#include <GL/glu.h>
#define E(x) { printf("%i\n",x); goto l; }
#define G fgetc(F)
#define H glEnable(
#define I glMaterialfv(GL_FRONT,
#define J glMatrixMode(
#define L (y
#define N NULL
#define O GL_DIFFUSE , i
#define P glCallList(u);
#define T glTexCoord2i
#define U glLightfv(GL_LIGHT0,
#define V R(); glVertex3i(c,m,n);
#define X GL_TEXTURE_2D

void Y()
{ { { { { { { { { { { { { { { {
                               
  { {     { { {   { { {   { { {
      {   {   {   {   {   {    
  { {     {   {   {   {     { {
  {       {   {   {   {       {
  { { {   { { ;   { } }   } } }
                               
                               
  }   } } }     }     }     }  
  }   }   }   }     }     }    
  }   }   }   }     }     }    
  }   }   }   }     }     }    
  }   } } }     }     }     }  
                               
} } } } } } } } } } } } } } } }

void Q()
{ { ; { { { {   {     {   { {
  { {     {         {     { {
{   { {   { {               {
; { { } } } } }   }     }   }
} ; }   } }   }   } }   } } }
} }     }         }     } }   



                 FILE* F; void Z (int* x) { G; *x=G; *x=*x<50- (*x==59); }
	       int u,t,l,m,n,x=0, a=0,b[]={ GLX_DOUBLEBUFFER, GLX_RGBA   ,
	     GLX_DEPTH_SIZE,16, None},o,n,c; void R() { Z(&c); Z(&m     );
	  Z(&n ) ; } int main( int _, char **A) { char f [BUFSIZ       ] ;
	GLXContext r; XVisualInfo* v ; Display *y; GLfloat g=0         ,h=
     10, i[]= { 1,1, 1,1, 5,5, 100, 0, .6,.6,.6,1 } ; XEvent           e ;
   XSetWindowAttributes s; GLubyte j[ 1<<10] ; Window w,u;             if(
	                                                               ! L
=XOpenDisplay ( N ) ) ) E( 1 ) ; if ( ! glXQueryExtension              L,N
,N ) ) E( 2 ) ; v =  glXChooseVisual L , DefaultScreen (y              ),b
); s. colormap = XCreateColormap L , u = RootWindow ( y ,              v->
screen),v->visual, AllocNone ); if ( !(r=glXCreateContext              L,v
,N , 1 ) ) ) E ( 3 ) ; strcpy (f , * A) ; strcat (f, ".c"              ) ;
F =  fopen ( f ,  "r" ) ; s . event_mask = KeyPressMask ;              w =
XCreateWindow L,u, 0,0,640, 480,0,v -> depth, InputOutput              , v
-> visual , CWBorderPixel  | CWColormap  | CWEventMask ,&              s);
glXMakeCurrent L , w , r ) ; H GL_DEPTH_TEST ) ; if ( ! F              )E(
4 ) ; glShadeModel ( GL_SMOOTH ) ; while ( a  != 89 ) a =              G ;
G; G ; glGenTextures( 1, & t ) ; while ( x< 1024 ) { G; a              =G;
j[ x++ ] = 128; j[ x++ ] = 128 & - ( a<33 ); j [ x ]= j [              x-1
]; x++; j[x++] = -1;} glBindTexture(X,t); glTexParameteri              (X,
GL_TEXTURE_MIN_FILTER , GL_NEAREST ) ;   glTexImage2D ( X	       ,0,
GL_RGBA, 16 ,  16 , 0 ,  GL_RGBA,  GL_UNSIGNED_BYTE , j ) 	       ; J
GL_PROJECTION ) ; gluPerspective ( 60 , 1.333 , 1 ,  100)    	       ; J
GL_MODELVIEW); u=glGenLists(1); glNewList (u,GL_COMPILE);	       H X
); while(a!=81)a=G; G;G;for(x=0;x<6;x++){glBegin(GL_QUADS              ) ;
R(); glNormal3f(c,m,n); T(1,1); V T(1,0); V T(0,0); V T(0              ,1)
; V glEnd(); } glEndList(); XMapWindow L, w) ; c=0; for(;              ; ) 
{ if (XPending L)){ XNextEvent L, &e); if ((XLookupKeysym              ( (
XKeyEvent *)&e,0))&1<<5){ h=10; i[c] =!i[c]; c++; c&=3; }             else 
E(0) } glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT            ) ;
glLoadIdentity (); gluLookAt ( -2 ,0 ,5 ,0,0 ,0,0 ,0 ,1 )          ; H
GL_LIGHTING); H GL_LIGHT0 ); U GL_POSITION, i + 4 ); U O)        ; U
GL_SPECULAR, i); glLightModelfv( GL_LIGHT_MODEL_AMBIENT,i      +8)
; I GL_AMBIENT, i+8 ); I O + 8 ) ; glRotatef( g, 1, 1, 1)    ; P
glTranslatef (-h,0,0); P usleep (4000); g+=.07*x; if (g >  360)
g-=360.0; h-=x / 100.0; glFlush () ; glXSwapBuffers L, w); }

l:
return 0;
}