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package algs32.kdtree;
import algs12.Point2D;
import stdlib.*;
/* ***********************************************************************
 *  Compilation:  javac KdTreeVisualizer.java
 *  Execution:    java KdTreeVisualizer
 *  Dependencies: StdDraw.java Point2D.java KdTree.java
 *
 *  Add the points that the user clicks in the standard draw window
 *  to a kd-tree and draw the resulting kd-tree.
 *
 *************************************************************************/

public class KdTreeVisualizer {

  private static double round (double d) {
    return Math.round(d * 100.0) / 100.0;
  }
  public static void main(String[] args) {
    //args = new String [] { "src/algs32/kdtree/kdtree-input10K.txt" };
    //args = new String [] { "src/algs32/kdtree/kdtree-circle4.txt" };
    //args = new String [] { "src/algs32/kdtree/kdtree-circle10.txt" };
    //args = new String [] { "src/algs32/kdtree/kdtree-circle100.txt" };
    //args = new String [] { "src/algs32/kdtree/kdtree-horizontal8.txt" };
    //args = new String [] { "src/algs32/kdtree/kdtree-vertical7.txt" };


    KdTree kdtree = new KdTree();
    StdDraw.show(0);

    if (args.length > 0) {
      String filename = args[0];
      In in = new In(filename);
      while (!in.isEmpty()) {
        double x = in.readDouble();
        double y = in.readDouble();
        Point2D p = new Point2D(round (x), round (y));
        kdtree.insert(p);
        StdDraw.setPenRadius ();
        StdDraw.setPenColor ();
        StdDraw.rectangle (.5, .5, .5, .5);
        kdtree.draw();
        StdDraw.show(100);
      }
    } else {
      while (true) {
        if (StdDraw.mousePressed()) {
          double x = StdDraw.mouseX();
          double y = StdDraw.mouseY();
          System.out.format("%8.6f %8.6f\n", x, y);
          Point2D p = new Point2D(round (x), round (y));
          kdtree.insert(p);
          StdDraw.clear();
          StdDraw.setPenRadius ();
          StdDraw.setPenColor ();
          StdDraw.rectangle (.5, .5, .5, .5);
          kdtree.draw();
          kdtree.toGraphviz ("visualizer.png");
        }
        StdDraw.setPenRadius ();
        StdDraw.setPenColor ();
        StdDraw.rectangle (.5, .5, .5, .5);
        kdtree.draw();
        StdDraw.show(50);
      }
    }
  }
}