public class TextWorld extends World
{

    /**
     * Constructor for objects of class MyWorld.
     * 
     */
    public TextWorld()
    {    
        // Create a new world with 600x400 cells with a cell size of 1x1 pixels.
        super(700, 500, 1); 
        
         TextForTest textActor = new TextForTest ("Pokemon");
        TriggerText trigger = new TriggerText (textActor);
        addObject (trigger, 286, 80);
        
        // Resizing background picture to fit screen
        GreenfootImage Bg = new GreenfootImage ("pokemon.png"); //image name and file type. the image must be in the project folder created when started scenario
        Bg.scale (getWidth (), getHeight ()); // Can take anyway these 3 lines, if don't want any image/background
        setBackground (Bg);
        
        // Creating and adding the text (an object) to the world
        addObject (new TextForTest ("Pokemon"), 286, 80); //first number L/R: greater moves it to the right. Second Up or down: greater = down
        
        // Creating and adding the button
        PlayButton button = new PlayButton ();
        addObject (button, 500, 400);
        
    }
}

public class TriggerText extends Actor
{
    Actor toShow;
    
    public TriggerText (Actor actor)
    {
        toShow = actor;
        GreenfootImage Bg = new GreenfootImage ("MainMenu.jpg"); //image name and file type. the image must be in the project folder created when started scenario
        
       
    }
        
    /**
     * Act - do whatever the TriggerText wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    public void act() 
    {
        // (toShow.getWorld () !=null ) return;
        if (! Greenfoot.isKeyDown ("enter") ) return;
        getWorld ().addObject (toShow, getX (), getY ());
        
    }    
}

import greenfoot.*;
 
public class TriggerText extends Actor
{
    Actor toShow;
    boolean keyDown;
     
    public TriggerText(Actor actor)
    {
        toShow = actor;
        // set image here or set a default image for the classs
    }
     
    public void act()
    {
        if ( toShow == null ) return; // no actor to show
        if ( ! isTouching(Player.class) ) return; // not touching player
        if (Greenfoot.isKeyDown("enter") != keyDown ) // change in state of 'enter' key
        {
            keyDown = ! keyDown; // new state of key
            if (keyDown) // was key pressed
            {
                if (intersects(toShow)) // is text displayed
                {
                    getWorld().removeObject(toShow); // remove text
                }
                else
                {
                    getWorld.addObject(toShow, getX(), getY()); // show text
                }
            }
        }
        if ( ! isTouching(Player.class) && intersects(toShow)) // did player move away w/o removing text
        {
            getWorld().removeObject(toShow); // remove text
        }
    }
}

public class Player extends Actor
{
    public Player ()
    {
        GreenfootImage image = getImage ();
        image.scale (image.getWidth (), image.getHeight ());
        setImage (image);
    }

public class TriggerText extends Actor
{
    Actor toShow;
    boolean keyDown;
    
    public TriggerText (Actor actor)
    {
        toShow = actor;
        //Declaring image
        GreenfootImage image = new GreenfootImage ("textbox.jpg"); 
        image.scale (image.getWidth ()-110, image.getHeight () -68);
        setImage (image);
       
    }
        
    /**
     * Act - do whatever the TriggerText wants to do. This method is called whenever
     * the 'Act' or 'Run' button gets pressed in the environment.
     */
    
        public void act()
    {
        if ( toShow == null ) return; // Showing no actor
        if ( ! isTouching(Player.class) ) return; // When not touching the player
        if (Greenfoot.isKeyDown("enter") != keyDown ) // Pressing the enter key
        {
            keyDown = ! keyDown; // State of key after
            //If the key was pressed, show the text, and remove it. 
            if (keyDown) 
            {
                if (intersects(toShow))
                {
                    getWorld().removeObject(toShow); 
                }
                else
                {
                    getWorld().addObject(toShow, getX(), getY()); 
                }
            }
        }
        // If the player moved without reading the text, remove it
        if ( ! isTouching(Player.class) && intersects(toShow)) 
        {
            getWorld().removeObject(toShow); 
        }
    }
}