#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "descartes.h"


/* Global variables for storing the lines drawn */
int num_lines = 0; /* number of line segments in lines */
lineSeg_t lines[10];

/* distance at which points are too close */
const int NEARNESS = 5;

/* Returns 1 if the two points are within dist of each other
   in both dimensions */
int Near(point_t p1, point_t p2, int dist) {
  /* BEGIN ANSWER (a) -- do not delete this line */
  
  // ADD YOUR CODE HERE


  /* END ANSWER (a) -- do not delete this line */
}

/* Draws a random line, whose end points are not too near to any existing
   line, and stores it in the lines array.
*/
void DrawNewLine(void) {
  /* BEGIN ANSWER (b) -- do not delete this line */

  // ADD YOUR CODE HERE

  /* END ANSWER (b) -- do not delete this line */
}


/* Returns the index of the shortest line in the lines array */
int FindShortest(void) {
  /* BEGIN ANSWER (c) -- do not delete this line */

  // ADD YOUR CODE HERE

  /* END ANSWER (c) -- do not delete this line */
}


/* Gets a point from the user identifying one of the lines */
int ClickedLine(void) {
  /* BEGIN ANSWER (d) -- do not delete this line */

  // ADD YOUR CODE HERE

  /* END ANSWER (d) -- do not delete this line */
}

int main(void) {
  OpenGraphics();

  /* Initialize random number generator */
  srandom(time(NULL));

  int i;
  
  for (i=0; i < 10; i++) {
    DrawNewLine();
  }

  int shortest = FindShortest();

  printf("Please click on one end of the shortest line.\n");

  int clicked;

  while ( (clicked = ClickedLine() ) != shortest ) {
    printf("Wrong - try a different line!\n");
  }
  printf("Correct!\n");

  CloseGraphics();

  return EXIT_SUCCESS;
}