/*
 * Program that draws concentric circles of varying closeness.
 */
import objectdraw.*;
import java.awt.*;

public class CrazyCircles extends FrameWindowController {

    private Location center;

    public void begin() {
        center = new Location(canvas.getWidth() / 2, canvas.getHeight() / 2);
    }

    public void onMouseMove(Location point) {
        canvas.clear();
        // get the distance from the current mouse point 
        // to the center of the canvas
        double distanceToCenter = center.distanceTo(point);

        // now, using a loop, write code that draws concentric circles,
        // where the radius of the innermost circle is the same as
        // the distance from the mouse point to the center of the canvas,
        // the radius of the next circle is twice that distance, the 
        // radius of the next one is 3 times that distance, etc.
        // the circles should be drawn until the diameter of the last 
        // circle drawn is >= the width of the canvas

        double currentCircleX = center.getX();
        double currentCircleY = center.getY();
        double diameter = 0;
        
        while (diameter < canvas.getWidth()) {

            currentCircleX = currentCircleX - distanceToCenter;
            currentCircleY = currentCircleY - distanceToCenter;
            diameter = diameter + distanceToCenter * 2;

            new FramedOval(currentCircleX, currentCircleY, diameter, diameter, canvas);  

        } 

    }
}