#include <graphics.h>
#include <stdio.h>
#include <conio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include <limits.h>
#include <stdarg.h>
#include <dos.h>

int drawship();
int drawland();

int main ()
	{
	clrscr ();
	int gdriver = DETECT, gmode, errorcode;
	initgraph (&gdriver, &gmode, "c:\\tclite\\bgi");
	errorcode = graphresult ();

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

	/* "graphics main prorgam lines" go here */

	randomize;

	//drawship();
	drawland();

	getch ();
	closegraph ();
	return 0;
}

int drawship()
{
	setcolor(WHITE);

	//drawpoly (

	//arc(midx, midy, stangle, endangle, radius);
	//arc (250,250, 0, 180,
	//ellipse(midx, midy, stangle, endangle, xradius, yradius);
	//ellipse (350, 300, 0, 360, 15, 7);
	//line (350,300,360,310);

	//circle (

	/*
	line(250,250,257,250);
	line(257,250,257,257);
	line(257,257,250,257);
	line(250,257,250,250);

	line(250,250,254,244);
	line(254,244,257,250);

	line(252,257,248,261);
	line(248,261,247,264);
	line(245,264,249,264);

	line(255,257,260,261);
	line(260,261,261,264);
	line(259,264,263,264);
	*/

	return 0;
}

int drawland()
{
	randomize;
	int x_str, x_end, y_str, y_end, a, b, x_point;
	y_str = getmaxy() / 2;
	x_str = getmaxx();

	while (!kbhit())
	{
	//a = random (100);
	a = rand()%100;
	x_end = x_str - a;

	if (y_end > getmaxy()-50)
	{
	b = rand()%100;
	y_end = y_str - b;
	}
	else if (y_end < getmaxy()/2)
	{
	b = rand()%100;
	y_end = y_str + b;
	}
	else
	{
	b = rand()%100;
	y_end = y_str + b;
	}

	//x_point = random(100);

	line (x_str, y_str, x_end, y_end);

	//printf("%d %d %d %d\n", x_str,y_str,x_end,y_end);
	//delay(500);

	x_str = x_end;
	y_str = y_end;

	//delay (50);

	if (x_end < 1)
	{
	clrscr();
	x_str = getmaxx();
        }
	}

	return 0;
}