package com.akadatsky;

import javafx.scene.canvas.GraphicsContext;
import javafx.scene.paint.Color;

import java.util.Random;

public class Ball implements Shape {

    public static final int SHAPE_SIZE = 50;
    private final GraphicsContext gc;
    private final double SCREEN_X;
    private final double SCREEN_Y;
    private double x;
    private double y;
    private double xSpeed;
    private double ySpeed;

    public Ball(GraphicsContext gc) {
        this.gc = gc;
        SCREEN_X = gc.getCanvas().getWidth();
        SCREEN_Y = gc.getCanvas().getHeight();

        Random random = new Random();

        xSpeed = random.nextInt(10) - 5;
        ySpeed = random.nextInt(10) - 5;

        x = random.nextInt(400) + 20;
        y = random.nextInt(400) + 20;
    }

    public void move() {
        x += xSpeed;
        y += ySpeed;

        if (x + SHAPE_SIZE > SCREEN_X) {
            xSpeed = - (Math.abs(xSpeed));
        }
        if (y + SHAPE_SIZE > SCREEN_Y) {
            ySpeed = - (Math.abs(ySpeed));
        }
        if (x < 0) {
            xSpeed = Math.abs(xSpeed);
        }
        if (y < 0) {
            ySpeed = Math.abs(ySpeed);
        }
    }

    public void draw() {
        gc.setFill(Color.RED);
        gc.fillOval(x, y, SHAPE_SIZE, SHAPE_SIZE);
    }

}