Discussions

Although the wombat is not an enemy, this still might help. It is the same type of movement.

Line 5 uses 'getOneObjectAtOffset'. The documentation shows that it returns an object of type Actor (regardless of what class of object you are looking for). To access anything in the Container class with the field 'containerPicked', you need to let it be known that the field holds a Container type object. <Code Omitted>This line takes the actor (containerPicked) and casts it as a Container type object and then sets the new variable 'cp', which is declared to hold a Container object, to that actor.

Ah! I almost forgot about switch cases *shame*. Thanks mate! Much improvement :)

Hmm, you're right. I mis-read that code (as 250 - 350). However, the 'n must be positive' error nearly always comes from mis-use of the Greenfoot.getRandomNumber method, in my experience (and it certainly doesn't come from addObject). Pe1per, perhaps you can point out which line actually causes the error rather than forcing us to guess?

Are only enemies moving? I think I didn't really get the way the game works right now. You get points for every click on an enemy and you have to place them back until one reaches the right side? Could it be that the seeLocation method (which I don't really understand why it is made like this) is quite useless? It is only called when it was dragged to a different position and if it is on a target position, it shouldn't move. How is this supposed to be? You could do it like that:

For continuous: <Code Omitted>

<Code Omitted>or <Code Omitted>

Use the code tags to post code please. What I would suggest first, because this code is a mess (and it isn't easy to get an overview of what is important and what not), have the images in arrays. Then you can code that in a few lines and don't have to do something like what you did there.

Firstly thanks for the reply . Could you possibly give me a suggestion of what the code in line 3 and 6 needs to be?

thanks its works now, you've been a great help to my game.

In your second Demo, can you explain to me how the tail knows how to follow the head? I would post the code that covers things like direction and spawning the tail is almost the entire snake class.

thank you guys its now working

You should be able to use code similar to the code of the act method except that you will reverse the direction of the turns and look for walls instead of looking for where walls are not. This should be done once, when the actor is added into the world (use the 'addedToWorld' method).