for(MetaballsIt Mit = Metaballs.begin(); Mit != Metaballs.end(); ++Mit)                                                                   
    {                                                                                                                                         
          (*Mit)->x += (*Mit)->vx;                                                                                                            
          (*Mit)->y += (*Mit)->vy;                                                                                                            
          (*Mit)->commit();                                                                                                                   
    }                                                                                                                                         
                                                                                                                                              
    for(int yy=0; yy<=240; yy+=s)                                                                                                             
    {                                                                                                                                         
        for(int xx=0; xx<=320; xx+=s)                                                                                                         
        {                                                                                                                                     
            float d = 0.0f;                                                                                                                   
            for(MetaballsIt Mit = Metaballs.begin(); Mit != Metaballs.end(); ++Mit)                                                           
            {                                                                                                                                 
                d+=     ((*Mit)->r)                                                                                                           
                            /                                                                                                                 
                        (                                                                                                                     
                            (xx-((*Mit)->x)) * (xx-((*Mit)->x)) + (yy-((*Mit)->y)) * (yy-((*Mit)->y))                                         
                        );                                                                                                                    
            }                                                                                                                                 
                                                                                                                                              
            d = 200/((xx-(float)ms.mx)*(xx-(float)ms.mx)+(yy-(float)ms.my)*(yy-(float)ms.my));                                                
                                                                                                                                              
            static int col1 = 0;                                                                                                              
            static int col2 = 0;                                                                                                              
            col1=-(int)(258-(d-t)*2550);                                                                                                      
            col2=-(int)(258-(d-t)*2550);                                                                                                      
            if(d>(t-0.2)&&d<(t-0.1))boxRGBA(ekran, xx, yy,xx+s-1,yy+s-1,col2,0,0,255);                                                        
            if(d>(t-0.1)&&d<t)boxRGBA(ekran, xx, yy,xx+s-1,yy+s-1,255,col1,col1,255);                                                         
            if(d>t)boxRGBA(ekran, xx, yy,xx+s-1,yy+s-1,255,255,255,255);                                                                      
                                                                                                                                              
/*          col1=(int)((d-t)*(255/t));                                                                                                        
            if(d<t) boxRGBA(ekran, xx, yy,xx+s-1,yy+s-1,255,col1,col1,col1);                                                                  
            if(d>(t-0.01)) boxRGBA(ekran, xx, yy,xx+s-1,yy+s-1,255,255,255,255);                                                              
*/                                                                                                                                            
                                                                                                                                              
        }                                                                                                                                     
    }