I would suggest using the following format for reading in a file as (1) awt is not supported on the greenfoot site; and (2) it is always best to minimize the amount of time a file is open. Move or copy the text file into your scenario folder, if not there already, and set filename to a simple format like filename.txt. Each line in he lines array (containing the file data) can then be parsed and used individually.

so i got them to appear on my screen but the movement is a little weird. They just go to points instead of a fluid movement. Any way you could help with that?? bird class import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) public class Bird extends Actor { private int speed; private double xSpeed; private double ySpeed; private double xLoc; private double yLoc; /** * returns the current speed in the x direction of this Bird * @return the current x speed */ public Bird( int speed, double xVel, double yVel) { this.speed = speed; redraw(); xSpeed = xVel; ySpeed = yVel; } public void addedToWorld(World shootBirds) { xLoc = getX(); yLoc = getY(); } public double getHorizontalSpeed() { // this needs fixing !!! return 0; } // private method - so na Javadoc comment. // redraws the image for this bird. private void redraw() { // get an "empty" bird image setImage("bird.png"); GreenfootImage pallette = getImage(); // if bird is moving left, "flip" image so head and tail of bird // appear in proper orientation if (getHorizontalSpeed()<0) { pallette.mirrorHorizontally(); } // if the bird is carrying a viral Load ... if (getInfectionCount() > 0) { // add red viral load count in text to the right of the bird image pallette.setColor(Color.RED); pallette.drawString(""+ getInfectionCount(), 60, 25); } // add life left count to the left of bird image in blue. pallette.setColor(Color.BLUE); pallette.drawString(""+getLifeLeft() , 2, 25); } /** * returns this Bird's current viral load count * @return the viral load count */ public int getInfectionCount() { // you'll want to fix this, as it shouldn't always be 1. return 1; } /** * returns this Bird's amount of life left * @return the amount of life left */ public int getLifeLeft() { // you'll want to fix this, as it shouldn't always be 1. return 1; } /** * Act - do whatever the Bird wants to do. This method is called whenever * the 'Act' or 'Run' button gets pressed in the environment. */ public void act() { if(getX() <= 0 || getX() >= getWorld().getWidth()-1) xSpeed = -xSpeed; if(getY() <= 0 || getY() >= getWorld().getHeight()-1) ySpeed = -ySpeed; xLoc += xSpeed; yLoc += ySpeed; setLocation( (int) xLoc, (int) yLoc); } } world class import greenfoot.*; // (World, Actor, GreenfootImage, Greenfoot and MouseInfo) import java.awt.FileDialog; import java.io.*; import java.util.Scanner; public class MyWorld extends World { /** * Constructor for objects of class MyWorld. * */ public MyWorld() { // Create a new world with 600x400 cells with a cell size of 1x1 pixels. super(800, 600, 1); prepare(); } public void prepare() { CircleMeter circlemeter = new CircleMeter(50,90); addObject(circlemeter,20,580); RectangleMeter rectanglemeter = new RectangleMeter(100); addObject(rectanglemeter, 10,500); } /** * act - do whatever a MyWorld is supposed to do. (needs a better comment) */ public void act() { if (Greenfoot.isKeyDown("l")) { FileDialog fd = null; fd = new FileDialog (fd , "Open bird file" , FileDialog.LOAD); fd.setVisible(true); String fname = fd.getDirectory() + fd.getFile(); File birdFile = new File (fname); Scanner birdReader = null; try { birdReader = new Scanner(birdFile); } catch (IOException ioe) { System.out.println("no file found:" + fname); return; } while(birdReader.hasNext()) { String type = birdReader.next(); if (type.equalsIgnoreCase("bird")) { int speed = birdReader.nextInt(); int intX = birdReader.nextInt(); int intY = birdReader.nextInt(); Bird bigBird = new Bird(speed, intX, intY); addObject(bigBird, intX, intY); } } } } }

What exactly do you mean by "go to points"? Describe the little weird, non-fluid movement?

Interesting -- because when I ran your Bird class, the birds just casually bounced (normally) off the edges (even out of corners). The image was not mirroring, however.

Then the 3rd parameter should arguably be zero: new Bird( ?, ?, 0) // ?'s being non-zero values

this is what its supposed to be like That is, the word bird (in a case insensitive manner), followed by three integers. The first integer specifies the initial speed of the bird in the x direction (initially, the bird will not move in the y direction), the second specifies the initial x location of the bird, and the third specifies the y location of the bird. A corresponding Bird object should be added to the world. and when i did that they al stayed at the top here is an example file bird 3 400 500 BIRD 1 400 350 Bird -3 400 450

But in your Bird constructor, the 2nd and 3rd parameters are being set to the horizontal and vertical speeds. Apparently, you do not need xSpeed and ySpeed -- you only need speed, which would only require the 1st parameter. You don't need xLoc and yLoc either. Those values can be gotten using getX() and getY(). In other words your Bird class was way overcomplicated. The following would have done: I did not add any code for lives or infections as they were not yet implemented.

Previously: This is what you said and what my code does. So, now you say, that is not enough. Do you want them to start at different heights and only move horizontally?

bird 3 400 500 BIRD 1 400 350 Bird -3 400 450 like this is the example file the two integers at the end are the initial x and y location

Please show your adjusted MyWorld class codes.