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Need help with spawning in actors

By Hydrowarrior, with 2 replies.
Last reply by danpost, over 9 years ago:

There is no need to have 'PrepX' and 'PrepY' retained for the life of the world. You can change the method to this: <Code Omitted>and remove'PrepX' and 'PrepY' totally from the class.

fire bullet right and left hand

By fandyrazzle, with 5 replies.
Last reply by danpost, over 9 years ago:

Oh, yeah. You did say your Shooter turns 360 degrees. You will need to insert the following line into the code at line 4 (before the 'turn-move-turn-move' combination): <Code Omitted>

Semi-Auto Weapons

By Cragster25, with 4 replies.
Last reply by Cragster25, over 9 years ago:

I have manages to fix it by changing the variable I have set to be a minus and when the space isn't pressed it would reset so the pistol can then fire once again. <Code Omitted>

Stopping a single method

By Julian109998, with 3 replies.
Last reply by Julian109998, over 9 years ago:

Thank u guys :)

Giving one Object another Object's coordinates

By BloodMate, with 3 replies.
Last reply by SPower, over 9 years ago:

It is to keep track of the player object. If you were to simply say, <Code Omitted>It's much harder to get a hold of that object again. It is possible with some Greenfoot methods, but the way that objects are normally 'kept track of' is through instance variables.

Reupload my game?

By NakedSnakeCQC, with 2 replies.
Last reply by NakedSnakeCQC, over 9 years ago:

Thanks very much wasn't sure if that would work.

why does greenfoot give null pointer exception before program start?

By fandyrazzle, with 4 replies.
Last reply by danpost, over 9 years ago:

If you want zombies to be created from the Zombie class, you will have to make the following changes: Change the 'spawn' method in the Zombie class to this: <Code Omitted>Then in the your MyWorld class, you can create a zombie with this: <Code Omitted>

Keyboard in Scenario Applets

By JetLennit, with 4 replies.
Last reply by Game/maniac, over 9 years ago:

I've als notice that the key's stick after being pressed and will return to normal when you remove focus from the game. And sometimes instead of sticking the keys will appear to 'judder' when held down.

Remove actor

By BearProject, with 2 replies.
Last reply by BearProject, over 9 years ago:

Making my turtle move with "atEdgeOfWorld"

By Orko, with 1 reply.
Replied to by danpost, over 9 years ago:

Here, you are showing a method that you can call that returns a true/false value (boolean) that lets you know if the actor is at the edge of the world or not. Using its returned value as the condition to turn: <Code Omitted>

Unable to Call Actor Method From World.

By soveda31, with 2 replies.
Last reply by soveda31, over 9 years ago:

OH! Yeah I did what you said and it started to work! Thank you very much!

Stopping the game

By BearProject, with 4 replies.
Last reply by danpost, over 9 years ago:

valdes wrote...

@danpost, with the change you made, I believe the Actor will keep on moving in the same direction. In the original code, the Actor only moves when a key is pressed.

@valdes, you are so right. I did not consider the possibility of no key pressed when I changed it. Maybe the easiest way to change it to keep it consistent with the original code is to switch each occurrence of those two lines at all four places in the original code. Then, also, the following line will need to be placed between each 'if' block (before lines 9, 16 and 22):

How to make ground?

By aksaa002, with no replies.

Hello i am new at greenfoot proggraming, and sorry for my bad English i am from Serbia. How to make ground and when you when you jump under ground, go to down. <Code Omitted>

Background Music

By ZacBuzzsaw, with 4 replies.
Last reply by danpost, over 9 years ago:

ZacBuzzsaw wrote...

I'm not quite sure where you're getting the songPlaying variable. Am I just missing something blatantly obvious? I tend to do that, unfortunately.

Sorry, it would be like your chooseSong field, renamed and declared outside the method so that its value is retained.

Scenario Not Updating.

By Camyh15, with 1 reply.
Replied to by valdes, over 9 years ago:

I don't know the limit, but I have suggestions Before you upload your scenario, clean up the images and sounds folders of your project, leaving only the actual images and sounds used in your game. Perhaps you have other files not being used. Also, maybe you are using images too big and resizing them in Greenfoot, It is better and your game runs faster it you resize those images in photoshop or something like that.

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