/**
 * Name : Chelsey Lin
 * PennKey : chelseyl
 * Recitation : 216
 */

public class StampSketch {
    public static void main(String[] args) {
        // is this the first time we are drawing the background?
        boolean firstTime = true;

        // initializing and defining variables
        double xWave1 = 0.0;
        double xWave2 = 0.2;
        double yStar;

        PennDraw.enableAnimation(5);

        while (true) {
            // if a key is pressed, redraw background
            if (PennDraw.hasNextKeyTyped()) { // check keyboard input
                // basic background: sea and night sky
                PennDraw.clear();
                PennDraw.setPenColor(PennDraw.BLACK);
                PennDraw.filledSquare(0.5, 0.5, .5);
                PennDraw.setPenColor(PennDraw.BOOK_BLUE);
                PennDraw.filledRectangle(0.5, 0.1, 0.5, 0.2);
                // loop to create waves (iteration)
                double i;
                for (i = 0.0; i < 2; i = (i + .2) % 1) {
                    System.out.println("Current value of i: " + i);
                    System.out.println("Current value of xWave1: " + xWave1);
                    System.out.println("Current value of xWave2: " + xWave2);
                    PennDraw.setPenColor(PennDraw.BOOK_LIGHT_BLUE);
                    PennDraw.filledArc(xWave1, 0.1, 0.1, 0, 180);
                    PennDraw.filledArc(xWave2, 0.15, 0.1, 0, 180);
                    xWave1 = (xWave1 + i) % 1;
                    xWave2 = (xWave2 + i) % 1;
                    PennDraw.advance();
                }
                // Math.random determine star position (random)
                if (Math.random() > .5) {
                    yStar = Math.random();
                    PennDraw.filledEllipse(Math.random(), yStar, .05, .05);
                }
                PennDraw.nextKeyTyped(); // read 1 character
                firstTime = false;
            }

            // if the mouse is clicked
            if (PennDraw.mousePressed()) {
                // get the coordinates of the mouse cursor
                double x = PennDraw.mouseX();
                double y = PennDraw.mouseY();
            }
            // draw moon at location if above horizon
            if (y > .3) {
                PennDraw.filledEllipse(x, y, (1.0 - x), (1.0 - y);
                                       }

                // TODO - check which region the mouse click was in
                // draw a scaled shape
            }
        }
    }
}