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package newtonsapple;

import java.util.Random;
import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.paint.Color;
import javafx.scene.paint.ImagePattern;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
import javafx.util.Duration;

/**
 *
 * @author Nicholas Camillo
 */
public class NewtonsApple extends Application {
    private Rectangle rect;
    private Circle apple;
    private Label title;
    private Label droppedLabel;
    private Label eatenLabel;
    private Label divisorLabel;
    private Label gameOverLabel = new Label("Game Over!");
    private Label ScoreLabel = new Label("Your final score is: ");
    private Label scorePercent;
    private Random rand = new Random();
    private int fallSpeed = 10;
    private int applesDropped = 0;
    private int applesEaten = 0;
    private ImageView bg = new ImageView(new Image("file:forest.jpg"));
    private Image newton = new Image("file:newton.gif");
    @Override
    public void start(Stage primaryStage) {
        
        Group root = new Group();
        Scene scene = new Scene(root, 700, 500);
        makeTitle();
        makeScoreboard();
        apple = new Circle(rand.nextInt(650), -25, 25);
        apple.setFill(Color.RED);
        ImagePattern imagePattern = new ImagePattern(newton);
        
        rect = new Rectangle(325, 400, 50, 50);
        rect.setFill(imagePattern);

        root.getChildren().add(bg);
        root.getChildren().add(title);
        root.getChildren().add(eatenLabel);
        root.getChildren().add(droppedLabel);
        root.getChildren().add(divisorLabel);
        root.getChildren().add(gameOverLabel);        
        gameOverLabel.setVisible(false);
        root.getChildren().add(rect);
        root.getChildren().add(apple);
        primaryStage.setTitle("Newton's Apple");
        primaryStage.setScene(scene);
        primaryStage.show();
        
        EventHandler<ActionEvent> eventHandler = e->{
            if (applesDropped < 10){
                apple.setCenterY(apple.getCenterY() + fallSpeed);
                if (apple.getCenterX() >= rect.getX()-25 && apple.getCenterX() <= rect.getX()+75 &&
                        apple.getCenterY() >= 375){
                    apple.setCenterX(rand.nextInt(650));
                    apple.setCenterY(0);
                    applesEaten++;
                    applesDropped++;
                    eatenLabel.setText(Integer.toString(applesEaten));
                    droppedLabel.setText(Integer.toString(applesDropped));
                }                
                if (apple.getCenterY() > 500){
                    apple.setCenterY(0);
                    apple.setCenterX(rand.nextInt(650));
                    applesDropped++;
                    droppedLabel.setText(Integer.toString(applesDropped));
                }

            }
            else {
                apple.setVisible(false);
                gameOver();
            }
        };
        
        rect.setOnKeyPressed(e-> {
            switch (e.getCode()){
                case LEFT:
                    if (rect.getX() > 0)
                        rect.setX(rect.getX() - 10); break;
                case RIGHT:
                    if (rect.getX() < 650)
                        rect.setX(rect.getX() + 10); break;
            }
        });
        
        rect.setOnMouseDragged(e->{
           rect.setX(e.getX());
        });
        rect.requestFocus();
        Timeline animation = new Timeline(new KeyFrame(Duration.millis(19), eventHandler));
        animation.setCycleCount(Timeline.INDEFINITE);
        animation.play();
    }
    
    public void makeTitle(){
        title = new Label("Newton's Apple");
        title.setTranslateX(300);
        title.setTranslateY(20);
        title.setScaleX(2);
        title.setScaleY(2);
        title.setTextFill(Color.WHITE);
    }
    
    public void makeScoreboard(){
        eatenLabel = new Label("0");
        droppedLabel = new Label("0");
        divisorLabel = new Label("/");
        eatenLabel.setScaleX(3);
        eatenLabel.setScaleY(3);
        eatenLabel.setTranslateX(25);
        eatenLabel.setTranslateY(30);
        eatenLabel.setTextFill(Color.CYAN);
        droppedLabel.setScaleX(3);
        droppedLabel.setScaleY(3);
        droppedLabel.setTranslateX(82);
        droppedLabel.setTranslateY(30);
        droppedLabel.setTextFill(Color.CYAN);
        divisorLabel.setScaleX(3);
        divisorLabel.setScaleY(3);
        divisorLabel.setTranslateX(56);
        divisorLabel.setTranslateY(30);
        divisorLabel.setTextFill(Color.CYAN);
        
    }

    public void gameOver(){
        gameOverLabel.setTextFill(Color.RED);
        gameOverLabel.setVisible(true);
        gameOverLabel.setScaleX(4);
        gameOverLabel.setScaleY(4);
        gameOverLabel.setTranslateX(325);
        gameOverLabel.setTranslateY(250);
    }
    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        launch(args);
    }
    
}