TRANSLATION PROGRAM IN C

//***PROGRAM FOR TANSLATION*****//
#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<graphics.h>
void circlemid(int,int,int);
void circlepoint(int,int,int,int);
int r,x1,x2,y1,y2,x3,y3,x4,y4;
int ch;
int x,y;
void main()
{
int gd = DETECT, gm;
initgraph(&gd,&gm,"c:\tc\bgi");
{
cleardevice();
do
{
clrscr();
printf("TRANSLATIONn");
printf("PRESS 1 FOR LINEn");
printf("PRESS 2 FOR RECTANGALEn");
printf("PRESS 3 FOR CIRCLEn");
printf("PRESS ANY KEY TO EXITn");
scanf("%d",&ch);
switch(ch)
{
 case 1:
   printf("ENTER STARING POINTn");
   scanf("%d%d",&x1,&y1);
   printf("ENTER THE ENDPOINT");
   scanf("%d%d",&x2,&y2);
   setcolor(RED);
   line(x1,y1,x2,y2);
   printf("ENTER TRANSLATION FACTOR");
   scanf("%d%d",&x,&y);
   setcolor(RED);
   x3 = x1+x;
   x4 = x2+x;
   y3 = y1+y;
   y4 = y2+y;
   line(x3,y3,x4,y4);
   getch();
 break; 

 case 2:
   printf("ENTER STARING POINTn");
   scanf("%d%d",&x1,&y1);
   printf("ENTER THE ENDPOINT");
   scanf("%d%d",&x2,&y2);
   setcolor(RED);
   rectangle(x1,y1,x2,y2);
   printf("ENTER TRANSLATION FACTOR");
   scanf("%d%d",&x,&y);
   setcolor(RED);
   x3 = x1+x;
   x4 = x2+x;
   y3 = y1+y;
   y4 = y2+y;
   rectangle(x3,y3,x4,y4);
   getch();
  break;
  case 3:
    printf("ENTER STARING POINTn");
    scanf("%d%d",&x,&y);
    printf("Enter radius of circle");
    scanf("%d",&r);
    setcolor(RED);
    circlemid(x,y,r);
    printf("ENTER TRANSLATION FACTOR");
    scanf("%d%d",&x1,&y1);
    x=x+x1;
    y=y+y1;
    circlemid(x,y,r);
    setcolor(RED);
    getch();
  break;
     default:
    exit(0);
 }
 }
 while(ch!=0);
 getch();
 closegraph();
 }
 }
void circlemid(int xc,int yc,int rd)
{
  int x =0;
  int y =rd;
  int p = 1-rd;
  while(x<y)
{
x++;
if(p<0)
  p = p+2*x+1;
else
{
  y--;
  p = p+2*(x-y)+1;
}
circlepoint(xc,yc,x,y);
delay(200);
}
}
void circlepoint(int xc,int yc,int x,int y)
{
  putpixel(xc+x,yc+y,1);
  putpixel(xc+y,yc+x,1);
  putpixel(xc-y,yc+x,1);
  putpixel(xc-x,yc+y,1);
  putpixel(xc+x,yc-y,1);
  putpixel(xc-y,yc-x,1);
  putpixel(xc+y,yc-x,1);
  putpixel(xc-x,yc-y,1);
}