diff --git a/main/device.h b/main/device.h
index 15ae8af..efead99 100644
--- a/main/device.h
+++ b/main/device.h
@@ -411,147 +411,6 @@ class Disc : public Device{     // n > 1 !!!
 
 
 
-
-/*
-class Lens_ras : public Device{
-public:
-    float deg, f, l;
-    
-public:
-    Lens_ras ( float x, float y, float l_0, float deg_0, float f_0){       //deg from vertical 0 <= deg < 90 !!! against hour ;
-        x1 = x - (float)(l_0/2) * sin (deg_0 * PI / 180) ;
-        x2 = x + (float)(l_0/2) * sin (deg_0 * PI / 180);
-        y1 = y - (float)(l_0/2) * cos (deg_0 * PI / 180);
-        y2 = y + (float)(l_0/2) * cos (deg_0 * PI / 180);
-        l = l_0;
-        f = f_0;
-        deg = deg_0;
-    }
-    point * cross_point (RAY * r) const {
-        point * p = new point  ();
-        if ((orient (this->x1,this->y1,this->x2,this->y2,r->x,r->y,1) < 0) && ((r->deg <= 90) || (r->deg >= 270))){
-            cout << "c_here_1 \n";
-            float det = this->y2 - this->y1 - tan (r->deg * PI / 180) * (this->x1 - this->x2);
-            float det_1 = this->y2 * this->x1 - this->y1 * this->x2 - (this->x1 - this->x2) * (r->y + tan (r->deg * PI / 180) * r->x);
-            float det_2 = (this->y2 - this->y1) * (r->y + tan (r->deg * PI / 180) * r->x) - (this->y2 * this->x1 - this->y1 * this->x2) * tan (r->deg * PI / 180);
-            p->x = (float)det_1/det;
-            p->y = (float)det_2/det;
-            if (( p->x >= x1 ) && ( p->x <= x2 ) && ( p->y >= y1 ) && ( p->y <= y2 ))
-                return p;
-        }
-        if ((orient (this->x1,this->y1,this->x2,this->y2,r->x,r->y,1) > 0) && ((r->deg >= 90) && (r->deg <= 270))) {
-            cout << "c_here_2 \n";
-            float det = this->y2 - this->y1 - tan (r->deg * PI / 180) * (this->x1 - this->x2);
-            float det_1 = this->y2 * this->x1 - this->y1 * this->x2 - (this->x1 - this->x2) * (r->y + tan (r->deg * PI / 180) * r->x);
-            float det_2 = (this->y2 - this->y1) * (r->y + tan (r->deg * PI / 180) * r->x) - (this->y2 * this->x1 - this->y1 * this->x2) * tan (r->deg * PI / 180);
-            p->x = (float)det_1/det;
-            p->y = (float)det_2/det;
-            if (( p->x >= x1 ) && ( p->x <= x2 ) && ( p->y >= y1 ) && ( p->y <= y2 ))
-                return p;
-        }
-        return NULL;
-    }
-    
-    void change_direction(RAY * r, point * p ) const
-    {
-        float l_1 = 0;
-        float alpha = 0;
-        float alpha_r = 0;
-        float c = 0 ;
-        float length = (float) sqrt ((r->x - (this->x1 + this->x2)/2) * (r->x - (this->x1 + this->x2)/2)+ (r->y - (this->y1 + this->y2)/2) * (r->y - (this->y1 + this->y2)/2)) ;
-        float line_tg = fabs ((float)((r->y - (this->y1 + this->y2)/2) / ((this->x1 + this->x2)/2 - r->x))) ;
-        //cout << " line_tg_prev = " << line_tg << "\n";
-        float line_deg = atan (line_tg) * 180 / PI;
-        cout << "line_deg_prev = " << line_deg <<"\n";
-        if (orient (this->x1,this->y1,this->x2,this->y2,r->x,r->y,1) < 0) {
-            if (r->y <= (this->y1 + this->y2)/2)
-                line_deg = this->deg + line_deg;
-            else
-                line_deg = fabs (line_deg - this->deg);
-        }
-        else {
-            if (r->y >= (this->y1 + this->y2)/2)
-                line_deg = this->deg + line_deg;
-            else
-                line_deg = fabs (line_deg - this->deg);
-        }
-        
-        cout << "line_deg = " << line_deg << "\n";
-        line_tg = tan (line_deg * PI / 180);
-        
-        //cout << " line_tg = " << line_tg << "\n";
-        float a = length * cos (atan (line_tg));
-        //cout << " a = " << a << "\n";
-        float b = (float) (this->f * a / (a + this->f));
-        //cout << " b = " << b << "\n";
-        c =  sqrt ((p->x - (this->x1 + this->x2)/2) * (p->x - (this->x1 + this->x2)/2)+ (p->y - (this->y1 + this->y2)/2) * (p->y - (this->y1 + this->y2)/2)) ;
-        
-        if (((orient (this->x1, this->y1 + this->l / 2 /cos (this->deg * PI / 180),this->x2, this->y2 - l / 2 /cos (this->deg * PI / 180), r->x, r->y,this->deg) >= 0) && (orient (this->x1, this->y1 + this->l / 2 /cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2 /cos (this->deg * PI / 180), p->x, p->y,this->deg) <= 0))  || ((orient (this->x1, this->y1 + this->l / 2 /cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2 /cos (this->deg * PI / 180), r->x, r->y,this->deg) <= 0) && (orient (this->x1, this->y1 + this->l / 2 /cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2 /cos (this->deg * PI / 180), p->x, p->y,this->deg) >= 0))) {   // точка пересечения и координата луча по разные стороны от опт.оси
-            l_1 = c + (float) b * line_tg;
-            cout << "here \n";
-            alpha = atan ((float) (l_1 / b)) * 180 / PI;
-            alpha_r = 180 -alpha ;
-            if ((orient (this->x1, this->y1 + this->l / 2 /cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2 /cos (this->deg * PI / 180), r->x, r->y,this->deg) >= 0) && (orient (this->x1, this->y1 + this->l / 2/cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2/cos (this->deg * PI / 180), p->x, p->y,this->deg) <= 0)) { //точка координата луча выше точка пересечения ниже
-                alpha_r = alpha_r + 2 * alpha;
-                alpha = 360 - alpha;
-                cout << " here_0 \n";
-            }
-            
-        }
-        else {   //точка персечкения и полоожение луча по одну сторону от опт.оси
-            l_1 = fabs (c - (float) b * line_tg);
-            alpha = atan ((float) (l_1 / b)) * 180 / PI;
-            alpha_r = 180 -alpha ;
-            cout << "here_here \n";
-            if ((orient (this->x1, this->y1 + this->l / 2/cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2 /cos (this->deg * PI / 180), r->x, r->y,this->deg) >= 0) && (orient (this->x1, this->y1 + (this->l / 2 - b * line_tg) / cos (this->deg * PI / 180) ,this->x2, this->y2 - (this->l / 2 + b * line_tg) / cos (this->deg * PI / 180), p->x, p->y,this->deg) <= 0)){ // луч выше опт.оси точка пересечения под всмогат.линией сверху
-                alpha_r = alpha_r + 2 * alpha;
-                alpha = 360 - alpha;
-                cout << "here_1 \n";
-                
-            }
-            
-            
-            if ((orient (this->x1, this->y1 + this->l / 2 /cos (this->deg * PI / 180),this->x2, this->y2 - this->l / 2 /cos (this->deg * PI / 180), r->x, r->y,this->deg) <= 0) && (orient (this->x1, this->y1 + (this->l / 2 + b * line_tg) / cos (this->deg * PI / 180) ,this->x2, this->y2 - (this->l / 2 - b * line_tg) / cos (this->deg * PI / 180), p->x, p->y,this->deg) <= 0)) {  // луч ниже опт.оси точка пересечения над всмогат.линией снизу
-                alpha_r = alpha_r + 2 * alpha;
-                alpha = 360 - alpha;
-                cout << "alpha =" << alpha << "\n";
-                cout << "here_2 \n";
-            }
-            
-        }
-        if (orient (this->x1,this->y1,this->x2,this->y2,r->x,r->y,1) < 0)
-            r->deg = alpha ;
-        else
-            r->deg = alpha_r;
-        
-        if (orient (this->x1,this->y1,this->x2,this->y2,r->x,r->y,1) < 0) {
-            if ((r->deg + this->deg - 360) > 0)
-                r->deg = (r->deg + this->deg - 360);
-            else
-                r->deg = r->deg + this->deg;
-        }
-        else {
-            
-            r->deg = r->deg + this->deg;
-        }
-        
-        r->x = p->x;
-        r->y = p->y;
-    }
-    const char *getID() const{
-        return "Lens_ras";
-    }
-    
-    ~Lens_ras ()
-    {
-        cout << "Destructure of the Lens_ras" << "\n";
-    }
-    
-    
-};
-*/
-
-
 class Lens : public Device{
 public:
     float deg, f, l;
@@ -1597,15 +1456,16 @@ class   Prism   : public Device {
 		}
 
     }
+	int getID(){
+		return 5;
+	}
 
-    const char *getID() const {
-        return "Prism";
-    }
+//    const char *getID() const {
+//      return "Prism";
+//    }
 
     ~Prism()
     {
         cout << "Destructure of the " << this->getID() << "\n";
     }
 };
-
-
diff --git a/main/main.cc b/main/main.cc
index a3290a0..7ae0895 100644
--- a/main/main.cc
+++ b/main/main.cc
@@ -237,6 +237,18 @@ for(int I=0; I<my_laser_ray.size(); I++)
                     		}
                     	recv(cs, temp, 1, 0);
                 	}
+			if (my_device[num]->getID()==5){
+	                        cross = my_device[num]->cross_point(my_laser_ray[I]);
+        	                sprintf(buf_, "%f %f %f %f %c", my_laser_ray[I]->x, my_laser_ray[I]->y, cross->x, cross->y, '\0');//new dot
+                	        if(send(cs, buf_, strlen(buf_)+1, MSG_NOSIGNAL)==-1){
+                        		perror("Can't send:");
+                        		return NULL;
+                        	}
+                        	recv(cs, temp, 1, 0);
+                        	float tx=cross->x;
+                        	float ty=cross->y;
+                        	my_device[num]->change_direction(my_laser_ray[I], cross);
+			}
 		}
 		else{
 			break;