DEV C/C++ ile Analog Saat Yapımı

/* 
    Name: Mekatronik Müh. 
    Copyright: Sakarya Üniversitesi 
    Author:  
    Date: 02.01.14 14:19 
    Description: Analog Saat 
  */ 
   
   
   
  #include <iostream>                      
  #include <graphics.h>                                                       
  #include <math.h>                                             
  #include <time.h>                                             
  #include <stdlib.h>                     
  #include <stdio.h> 
    
  struct tm *CT ;                              
  time_t Tval ; 
   
   
  ///////////////////////         CTIME CLASS'I               //////////////////// 
   
  class CTIME                                                
  { 
           int hour, min, sec;                        
           int h_24; 
           public: 
               CTIME():hour(0),min(0),sec(0),h_24(0){}                
               void getctime() 
              { 
                   Tval = time(NULL);  
                   CT = localtime(&Tval);   
                   hour = CT->tm_hour; 
                   min = CT->tm_min; 
                   sec = CT->tm_sec; 
                   if(hour>12) 
                     {hour=hour-12;}      
              } 
                int gethour()                                          
                {                                                     
                    return hour;                                                 
                }                                                     
                int getmin()                                           
                {                                                       
                    return min;                                       
                }                                                    
                int getsec()                                           
                {                                                       
                    return sec;                                        
                }                                                        
  }; 
   
  ///////////////////////            LINE CLASS'I             //////////////////// 
    
  class LINE                                                      
  { 
        protected: 
                  int x, y, r; 
        public: 
               LINE():x(350),y(350),r(300){} 
   
  }; 
     
  ///////////////////////           HOUR LINE                 //////////////////// 
   
  class Hneedle: public LINE 
  { 
      int hour,h,m; 
      
      public: 
             void Setangle(CTIME TM) 
             {                 
                  if(TM.gethour()>12) 
                              hour=TM.gethour()-12; 
                  else if(TM.gethour()==0) 
                              hour=12; 
                  else  
                              hour=TM.gethour();              
                  if(hour<4) 
                        h=abs(TM.gethour()-3); 
                  else 
                         h=15-TM.gethour(); 
   
                   m=TM.getmin();  
                } 
              
             void DrawNeedle(CTIME TM) 
              {                    
                  setcolor(0);    
                  setlinestyle(SOLID_LINE, 0, 6);  
                  circle(x,y,4); 
                  line(x , y, x+(r-110)*cos(M_PI/6*h-((m/2)*(M_PI/180))), y-(r-110)*sin(M_PI/6*h-((m/2)*(M_PI/180)))); 
               } 
                
  };  
   
  ///////////////////////           MINUTE LINE               //////////////////// 
   
  class Mneedle : public LINE  
  { 
      int thetamin; 
      
        public: 
            void Setangle(CTIME TM) 
             { 
                  if(TM.getmin()<=15) 
                        thetamin=(15-TM.getmin())*6; 
                  else 
                        thetamin=450-TM.getmin()*6; 
             } 
              
             void DrawNeedle() 
               {   
                   setlinestyle(SOLID_LINE, 0, 4);        
                  line(x,y,x+(r-60)*cos(thetamin*(M_PI/180)),y-(r-60)*sin(thetamin*(M_PI/180)));  
               } 
                
  }; 
   
  /////////////////////            SECONDS LINE               //////////////////// 
   
  class Sneedle : public LINE 
  { 
        int thetasec; 
         
        public: 
            void Setangle(CTIME TM) 
             { 
                  if(CT->tm_sec<=15) 
                         thetasec=(15-TM.getsec())*6; 
                  else 
                         thetasec=450-TM.getsec()*6; 
             } 
              
            void DrawNeedle() 
             { 
                 setcolor(1); 
                 setlinestyle(SOLID_LINE, 0, 3); 
                 line(x,y,x+(r-70)*cos(thetasec*(M_PI/180)),y-(r-70)*sin(thetasec*(M_PI/180))); 
             } 
  }; 
   
  ///////////////////////         CLOCK CLASS'I           //////////////////////// 
   
  class CLOCK 
  { 
                  Hneedle HN;      // Saat 
                  Mneedle MN;      // Dakika 
                  Sneedle SN;      // Saniye 
            
        public: 
               void showclock(CTIME TM)  
               {             
                    HN.Setangle(TM);        
                    MN.Setangle(TM);        
                    SN.Setangle(TM);        
                                    
                    HN.DrawNeedle(TM);      
                    MN.DrawNeedle();        
                    SN.DrawNeedle();        
                    delay(1000); 
                }       
  }; 
     
  int main( ) 
  { 
     FILE * pFile; 
     pFile = fopen ("saat.jpg","r");            
     if (pFile==NULL)        
     { 
        printf("\n\n Dosya eksik! \n"); 
        int ext;     
        scanf("%d",&ext); 
        exit(0);                              
     } 
     else       
        fclose (pFile);   
         
      
      CLOCK PC;  
      CTIME TM;  
       
      const int DELAY = 50;                     
       
      initwindow( 700 , 700 , "ANALOG SAAT (Mekatronik Müh.)");    
          
      while(1) 
      { 
         TM.getctime();                           
         readimagefile("saat.jpg", 0, 0, 700, 700);   
         PC.showclock(TM); 
      }  
      
  	return( 0 ); 
  };