World(int worldWidth, int worldHeight, int cellSize, boolean bounded). The act method is called by the greenfoot framework to give actors a chance to. Get all the objects in the world, or all the objects of a particular class.
This method can be overridden to implement custom behaviour when the actor is inserted into the world. Zero degrees is towards the east right-hand side of the worldand the angle increases clockwise.
Set the rotation of this actor. Returns a new Font object obtained by deriving the java. To paint a color, you need to get the background image for the world and paint on that.
The image may be used to draw onto the world’s background.
Removes one object of the given class that this actor ai currently touching if any exist. Objects found can be restricted to a specific class and its subclasses by supplying the ‘cls’ parameter.
Index (Greenfoot API)
True if there is an object of the given class type that intersects with the current object, false otherwise. Learn Ali with Greenfoot. The list will include this object, if the offset is zero. Make sure that this is really the method you want. Returns a string representation of this sound containing the name of the file and whether it is currently playing or not.
The y-coordinate of the actor’s current location Throws: Return the world that this actor lives in, provided that it is an instance of the given “worldClass” class i.
The UserInfo class can be used to store data permanently on a server, and to share this data between different users, when the scenario runs on the Greenfoot web site. Actor public abstract class Actor extends java.
True if the actor is at or beyond the edge cell of the world, and false otherwise. The rotation in degrees. Objects of a class not explicitly specified inherit the act order from their superclass.
World public abstract class World extends java. Stop playing this sound if it is currently playing. The world this actor is in, or null if either this actor is not in a world Throws: Return the current rotation of this actor.
Actor (Greenfoot API)
Object Represents audio that can be played in Greenfoot. The world’s act method is called before the act method of any objects in the world.
The x-coordinate of the object’s current location. If possible, you should always use stopbecause the resources can be released after calling stop.
Get all the objects in the world, or all the objects of a particular class. If more than one object of the specified class resides at that location, one of them will be chosen and returned.
This takes the graphical extent of objects into consideration. If there is no background image at the location it will return Color.
Paint order is specified by class: IllegalArgumentException Set a background image for the world from an image file. This method does nothing. An Actor is not normally instantiated, but instead used as a superclass to more greejfoot objects in the world.
Pauses the current sound if it is currently playing.
The act method is called by the greenfoot framework to give actors a chance to perform some action. Returns a string representation of this sound containing the name of the file aip whether it is currently playing or not. If it is smaller than the world, it is tiled. The file may be in jpeg, gif or png format. Any previous text shown at the same location will first be removed. The object will have a default image. This default implementation is empty.