Discussions

Actually, I got help from my professor today and she suggested that I adding this to my code and it worked: Constructor: this.xCoordinate= new int; this.yCoordinate= new int ; method array: { int currentX = getX( ); this.xCoordinate = currentX + Greenfoot.getRandomNumber (550-currentX); this.xCoordinate = currentX + Greenfoot.getRandomNumber (550-currentX); this.xCoordinate = currentX + Greenfoot.getRandomNumber (550-currentX); this.xCoordinate = currentX + Greenfoot.getRandomNumber (550-currentX); this.xCoordinate = currentX + Greenfoot.getRandomNumber (550

The easiest way to solve this is to look for a click on the arrow instead of the chess. By the way, this also allows movement to square without a chess on it. If you just wanted to select a different chess and show arrows around it, you could have it so if you click anywhere except on an arrow, the arrows are removed, and if that click was on a different chess, show the arrows around it (if the click was not on a chess, no arrows will be present, and you can then click on any chess).

Use two sets of square brackets instead of one private int coords = { { x1, y1 } { x2, y2 } { x3, y3 } ... }

check out the new sling shot version.

To achieve the following: if clicked and not flipped, flip; if clicked and flipped, select; and if selected and keystroke found, move; Use the following:

Thank you it help me a lot.

There is a fill() method that requires no parameters. <Code Omitted>

I understand, you need both references to 'trailing' and 'leading' segments in each segment (except null for 'trailing' in last segment and null for 'leading' in first segment). Very good. I wrote a quick random movement snake program, nothing but the snake moving around the screen randomly; except that you can click on a segment and split the snake into separate snakes. Interesting :/

*make all your Actor-Subclasses go UP

winkleden - if you didn't tick the "publish source code" checkbox when you uploaded the scenario, then the source code didn't get uploaded and in that case there's no way you can open the scenario in Greenfoot.

What do you mean - do you mean the image, or the behaviour?

O... so that is how I can use private ... xD now I understand, thanx

aha... thanx, that will probably be the cause... thanx again yes... it works -.-

Hi, The object bench is effectively replaced by the world. Once you have an actor in the world, you can call methods on them in the same way as you can on objects in the object bench in BlueJ. The trade-off is that while you have to extend Actor, you can make the methods have more obvious effects (moving the actor in the world, or rotating or changing image) which can make the results a bit more obvious. So my advice if you want to use Greenfoot is to make your first classes Actors, but that way you get to call methods on them. I don't think we have any plans to add the object bench to