package npw; import painter.SPainter; import shapes.SCircle; import shapes.SSquare; import javax.swing.*; import java.awt.*; import java.util.Random; import java.util.Scanner; public class HirstSquares { public void paintTheImage (){ int radius = getNumber ("circle radius"); // create a new method: getnumber int side = getNumber ("square side length"); SPainter painter = new SPainter("Circle of Squares",radius*2+50,radius*2+50); painter.setBrushWidth(3); SCircle circle = new SCircle(radius); SSquare square = new SSquare(side); paintCircleOfSquare(painter,circle,square);//create a new method: paintCircleOfSquare } private void paintCircleOfSquare(SPainter painter, SCircle circle, SSquare square) { painter.mfd(circle.radius()); painter.tr(); double moved = 0; while (moved < circle.diameter()){ double chord = chordLength(circle.radius()-moved,circle);//create a new method: chordLength int squares = squareOnLineCount(chord,square.side());//create a new method squareOnLineCount paintRow(painter,square,squares); // create a new method paintRow nextRow(painter,square.side()); // create a new method nextRow moved = moved +square.side(); } painter.tl(); painter.mfd(circle.radius()); } private void nextRow(SPainter painter, double rowHeight) { painter.tr(); painter.mfd(rowHeight); painter.tl(); } private void paintRow(SPainter painter, SSquare square, int squaresToPaint) { double centerOffset = ((squaresToPaint*square.side())/2)-square.side()/2; painter.mbk(centerOffset); int painted = 0; while (painted<squaresToPaint){ paintOneSquare(painter,square); painter.mfd(square.side()); painted = painted + 1; } painter.mbk(centerOffset + square.side()); } private void paintOneSquare(SPainter painter, SSquare square) { painter.setColor(randomColor()); square.s2(); painter.paint(square); painter.setColor(Color.BLACK); painter.draw(square); square.x2(); } private static int squareOnLineCount(double lineLength, double sideLength) { int squares = ((int)Math.ceil((lineLength - sideLength)/sideLength)+1); return squares; } private double chordLength(double yOffset, SCircle circle) { double xLength = Math.sqrt(Math.pow(circle.radius(),2)-Math.pow(yOffset,2)); double chordLength = xLength*2; return chordLength; } private static int getNumber(String prompt) { String nss = JOptionPane.showInputDialog(null,prompt+"?"); Scanner scanner = new Scanner (nss); return scanner.nextInt(); } private static Color randomColor() { Random rgen = new Random(); int r = rgen.nextInt(256); int g = rgen.nextInt(256); int b = rgen.nextInt(256); return new Color(r,g,b); } public HirstSquares(){ paintTheImage(); } public static void main (String [] args){ SwingUtilities.invokeLater(new Runnable(){ public void run (){ new HirstSquares(); } }); } }