That may provide more info as to how to code what you want. It might help if you show the code to one of your turn methods (maybe, the 'turnLeft' or 'turnRight' one). This movement is all AI movement, without using any user input. In the piano-case from the Greenfoot book chapter 5 (1st edition, in Dutch), it would be normally be wiser to instantiate a GreenfootSound object once, reading the wav-file just once as in sound new GreenfootSound('3a.wav') and then playing the sound as much as desired with ay() opposed to executing aySound('3a. If not try left and if not that way, try right. I could be totally wrong, but what I am getting from what you have previously stated is that you want your actor to move upward, if at all possible. Gibt ein Objekt zurück, das an einer Position liegt (relativ zu der Position des Objekts). I think you will need to explain better how you want this actor to move, in general. getOneObjectAtOffset (int, int, Class) - Method in class greenfoot. Only one point will be looked at, not 'in both directions (+ and -)'. If both offsets are negative numbers, then the point looked at will be to the upper-left of the actor, etc. If both offsets are positive numbers, then the point looked at will be to the lower-right of the center of your actor. That is, if your actor is at an x of 'actorX' and a y of 'actorY' and you look at offset 'offsetX' and 'offsetY', then the location which will be tested for the objects of the given class will be at an x of 'actorX+offsetX' and y of 'actorY+offsetY'. 10.2 Mit Sound arbeiten 221 10.3 Sound in Greenfoot aufnehmen und bearbeiten 222 10.4 Externe Soundaufnahme und -bearbeitung 223 10. When using 'getOneObjectAtOffset', the first two int parameters are the offsets horizontally and vertically from the location at which the actor is at where objects of a class are looked for. I do not know if I explained wellMaybe this is the misunderstanding. This tutorial will explain how to initialise the world with actors, as well as how to play and record sounds. in both directions (+ and -) i want to detect an object only in the negative X (the left of my actor) Write a description of class Boat here. (World, Actor, GreenfootImage, Greenfoot and MouseInfo) import java.io. That is, as public, the GreenfootSound object would already be accessible otherwise, you would need public method(s) to make them accessible (either with a getter method or with action method(s) to control the sound). You can remove lines 32, 33, 34, 38, and 43 as the loop will only run once anyway. In your field declaration area, change line 13 to private GreenfootSound song then in your constructor, change line 19 to song new GreenfootSound(soundFile). Pamsho wrote.i have understood that getOneObjectAtOffset detect an object on X and Y but. So basically the sound is a really short sound it only lasts about 3 seconds, but when I run it, the sound does not stop. You would only need to create public method(s) if the GreenfootSound object was private. Therefore, in your play method, use ay().

Greenfoot sound method