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How to fix scenario not working properly on browser?

By BillP101, with no replies.

Hello, my Solitaire scenario (https://www.greenfoot.org/scenarios/33256) that I published recently does not work properly on browser but works perfectly fine on Greenfoot app as I tested by downloading it on another computer and my own computer as well and I also tried using other browsers. From what I see so far everything breaks after you press play on the main menu on the browser. I made this scenario long ago so I don't remember much currently try to fix it but any help will be greatly appreciated.

Random Number in range

By S00pM4n, with 2 replies.
Last reply by danpost, 6 months ago:

S00pM4n wrote...

how do i generate a random number between 10 and 20 for example

Object Does Not Appear Automatically

By hiiiimlynn, with 2 replies.
Last reply by hiiiimlynn, 6 months ago:

Super_Hippo wrote...

The ‘myDefense’ method is never executed.

oh my gosh you are right! i feel so silly. thank you so much for your time.

getting actor methods into world

By 196els11, with 1 reply.
Replied to by danpost, 6 months ago:

196els11 wrote...

I am trying to access my method spider from the actor class inside of the world class but i cant figure it out

Please provide all of world class codes. Signify where your attempt was made. Then provide the code of the method you are trying to access.

My hearts aren´t dissapearing

By daviddd, with 12 replies.
Last reply by danpost, 6 months ago:

daviddd. wrote...

also, when i pick the option medium or hard i still get 5 lives, i have 3, 1 heart(s) on the screen but i dont die after running out of them? sorry if im a bother

You have two fields that are to hold same value (well, supposed to -- at least). They are (1) the health field that the Player instance retains and (2) the health field that the HealthBar instance retains. To keep things simple, best is to limit yourself to one field per value. So, remove the one the player retains and move all health related code from the Dungeon

Other

By Alexnikolaidou, with 1 reply.
Replied to by danpost, 6 months ago:

Alexnikolaidou wrote...

I have no syntax errors. How do I display the objects in my world ?

How to use the multiple parameter arrays?

By Cbazz, with 4 replies.
Last reply by Cbazz, 7 months ago:

Programm does´nt work in browser

By Tonomis, with 2 replies.
Last reply by Unknown_friend, 7 months ago:

Unfortunately it didn`t solve the problem. We uploaded a Version, in which we deleted the GifImage Class, and it shows the same error message.

I need help with my code

By GrDan, with 1 reply.
Replied to by Super_Hippo, 7 months ago:

You need to get a reference to the world to add the object to the world. An actor can receive a reference to the world it is currently in with the ‘getWorld’ method.

Im trying to make a platformer but there is a problem with some objects.

By Pls_help, with no replies.

Im trying to make a platformer (a recreation of meet the robinsons) and I have a few obstacles like crates what you can use to jump on top of. But after I did the code the box radius seems to be a bit too big and when I jump on the box and if I move again I fall right through the box. Code for main character: <Code Omitted>

Im trying to make a platformer and when i press start my chracter flies to the top of the screen pls help

By Pls_help, with 4 replies.
Last reply by Pls_help, 7 months ago:

I finally found the problem. Thanks.

my character stopped jumping and idk why

By Bashni, with 2 replies.
Last reply by danpost, 7 months ago:

Bashni wrote...

when I turn off one of the onGround(); it works but not when all are on anything I can do to fix this?

I suggest that you add a new class. A subclass of Actor called Ground that can be extended to all the objects that your character can stand or bop its head on (Floor1, Platform and Platform2). That way you only need to check for the Ground class instead of checking all three different types separately. Same for the collision offsets -- for each direction, you would only need one check for Ground class).

i need help, why sound keep playing when i clicked Play.class?

By Newrestar, with 2 replies.
Last reply by danpost, 7 months ago:

Newrestar wrote...

<< Code Omitted >>

A class is not an object that can be clicked on. Use a reference to the Play actor that is in your world.

How do I draw a circle?

By lvl30dragon, with 2 replies.
Last reply by lvl30dragon, 7 months ago:

danpost wrote...

lvl30dragon wrote...

I'm trying to draw a circle that increases in size with the middle always being the center of the screen, and then decreases in size by "erasing" the outer circle and then drawing an inner circle. However afaik building a circle using the drawOval method doesn't draw the circle from the center but the bottom left or upper left. how do I do this?

Just subtract half the size of the circle (the radius) from the x and y coordinates of the center. Use the results for the drawOval method call.

That works. Thanks!

get an actor's start location without hard coding

By NewUser567, with 1 reply.
Replied to by danpost, 7 months ago:

NewUser567 wrote...

If my actor touches a rock, it needs to go back to its starting coordinate and starting rotation. How can i get this without putting in the actual numbers?

You could save the initial location coordinates and rotation in fields when the actor is added into the world. Then (re)set location and rotation to those values when needed (hits rock).

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