#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
#include <dos.h>
#include <string.h>


struct segment {int dir, x, y;};
struct segment segments[2520];

void definedir()
{
if (key == 80)
		{
		segments[0].dir = up;
		}
if (key == 72)
		{
		segments[0].dir = down;
		}
if (key == 77)
		{
		segments[0].dir = right;
		}
if (key == 75)
		{
		segments[0].dir = left;
		}
}

void movehead()
{
if (segments[0].dir == up)
		{
		segments[0].x;
		segments[0].y+10;
		}

if (segments[0].dir == down)
		{
		segments[0].x;
		segments[0].y-10;
		{
if (segments[0].dir == right)
		{
		segments[0].x+10;
		segments[0].y;
		}
if (segments[0].dir == left)
		{
		segments[0].x-10;
		segments[0].y;
		}
}

void main (void)
{
int gdriver = DETECT, gmode, errorcode;
initgraph (&gdriver, &gmode, "C:\\BC\\BGI");

errorcode = graphresult();
if (errorcode != grOk)
	{
	clrscr ();
	printf ("Graphics error: %s\n", grapherrormsg (errorcode));
	printf ("Press any key to halt");
	getch ();
	exit (1);
	}

//////////////////////////////////////////////////////////////////

int x1, y1, l, m;
randomize();

rectangle (13, 13, 627, 397);
/*l = random (62);
m = random (39);
if (l == 0) l+10;
if (l == 62) l-10;
if (m == 0) m+10;
if (m == 39) m-10;
x1 = l*10;
y1 = m*10;*/

int key;

segments[0].x = 310;
segments[0].y = 200;

setcolor (7);
circle (segments[0].x, segments[0].y, 5);

int up, down, left, right, length, score = 0;

while (key!=27)
{
if (kbhit()) key = getch();

definedir();
delay (150);

movehead();

setcolor(7);
circle (segments[0].x, segments[0].y, 5);

}

getch();
closegraph();
}
}
}