import uwcse.graphics.*;
import java.awt.Color;

/**
 * A smiling face in a graphics window
 */

public class SmilingFace {

	// The graphics window
	private GWindow window;

	// Location of the face
	private int x, y;

	// Scale used to draw the face
	private double scale;

	/**
	 * Draws a smiling face in a graphics window
	 */
	public SmilingFace(int x, int y, double scale, GWindow window) {
		// Initialize the instance fields
		this.x = x; // x(instance field) = x(local variable)
		this.y = y;
		this.scale = scale;
		this.window = window;
		// Draw the face in the window
		this.drawFace();
	}

	/**
	 * Draws the face in the graphics window
	 */
	private void drawFace() {
		// The head (a circle: default radius = 50)
		int radius = (int) (50 * scale);
		Oval head = new Oval(x - radius, y - radius, 2 * radius, 2 * radius,
				Color.YELLOW, true);
		window.add(head);
		// The mouth (use drawMouth)
		this.drawMouth(x, (int) (y + 0.9 * radius));
		// The eyes (use drawEye)
		// left

		// right

		// The nose (use drawNose)

		// Show the face

	}

	/**
	 * Draws an eye
	 * 
	 * @param eyex
	 *            the x coordinate of the center of the eye
	 * @param eyey
	 *            the y coordinate of the center of the eye
	 */
	private void drawEye(int eyex, int eyey) {
		// A black circle in a white oval
	}

	/**
	 * Draws a nose
	 * 
	 * @param nosex
	 *            the x coordinate of the top point of the nose
	 * @param nosey
	 *            the y coordinate of the top point of the nose
	 */
	private void drawNose(int nosex, int nosey) {
		// A nose is a triangle
	}

	/**
	 * Draws a mouth
	 * 
	 * @param mouthx
	 *            the x coordinate of the middle bottom point of the mouth
	 * @param mouthy
	 *            the y coordinate of the middle bottom point of the mouth
	 */
	private void drawMouth(int mouthx, int mouthy) {
		// Draw two circles (one black and one yellow)
		// The yellow circle is on top of the black circle and slightly shifted
		// up
		int r = (int) (0.8 * 50 * scale);
		Oval blackCircle = new Oval(mouthx - r, mouthy - 2 * r, 2 * r, 2 * r,
				Color.BLACK, true);
		window.add(blackCircle);
		Oval yellowCircle = new Oval(mouthx - r, mouthy - 2 * r, 2 * r, 2 * r,
				Color.YELLOW, true);
		yellowCircle.moveBy(0, (int) (-0.2 * r)); // don't write (int) -0.2 * r
		// since it is always 0!
		window.add(yellowCircle);
	}
}