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isTouching is not working.

By denizkb, with 1 reply.
Replied to by danpost, 14 days ago:

denizkb wrote...

The code below is in my sprite class, when the sprite touches any enemies it goes to the location however the life counter doesn't decrease. When I remove the code below, the sprite doesn't go to the location and goes through the enemies but it decreases the life counter. << Code Omitted >>

Please show your current entire checkObstacles method.

Lives not decreasing when hit an obstacle

By denizkb, with 2 replies.
Last reply by danpost, 14 days ago:

Lines 398 through 401 does not help in your sprite class. Also, I would think you would want touchingObstacles to be false at line 413.

My Score Is Not Incrementing When I Pickup A Coin

By denizkb, with 6 replies.
Last reply by denizkb, 14 days ago:

danpost wrote...

denizkb wrote...

<< Code Omitted >> This is MyWorld code if that helps. I am still stuck and the score is not incrementing ;/

Change line 132 to: <Code Omitted>and line 150 to <Code Omitted>If problem persist, show sprite class next.

Thank you so much, the score now increments whenever I collect a coin. I would kindly like to ask if you could help me with the lives counter: https://www.greenfoot.org/topics/61747/0#post_130426

error message can't open scenario

By g.baessler, with 1 reply.
Replied to by danpost, 15 days ago:

g.baessler wrote...

The world could not be constructed. The world subclass may not have a public constructor without parameters, or may not be public

Obviously there is something amiss with your World subclass code. Show code for help.

I struggle with giving my actor reversed controls

By Tommes, with 2 replies.
Last reply by Tommes, 15 days ago:

Thank you! You helped me a lot!

Compile button not appearing on interface

By TinaFields, with 1 reply.
Replied to by danpost, 15 days ago:

TinaFields wrote...

Why does my interface not have a compile button on the bottom right?

Greenfoot now auto-compiles. Any time you change your code, it will compile your project if no errors when detected during the changing of the code when you go back to the main scenario frame,

Control Redirection to Multiple Worlds with One Method.

By Lewis12374, with 1 reply.
Replied to by danpost, 15 days ago:

Lewis12374 wrote...

I'm trying to achieve making my menu as abstract as possible, but I cannot seem to find a way around doing so. This is what I have tried so far, with no progression. Please help? << Code Omitted >> The error received is: '(' or '' expected on the SuperClass.

The compiler is expecting a class name followed by a parameter list (a set of round parentheses that may or may not contain any elements). It has yet to complain that you use a String object for the name or that it cannot find a class named "HelpScreen" (including the quotes) -- I suspect it will do one or th

Image

By Adi18, with 5 replies.
Last reply by danpost, 15 days ago:

Thanks. That could be a problem because I want to do something like a character can only jump to the top of the image, but if it touches the left, right or down side is put aside

For that, all you really need to know is the direction that the character moved. For example, if moved right and touches the object, then the object is to the right. Same goes for the other directions. As long as you adjust the position of the character such that it no longer touches the object (moving opposite the initial direction moved), you should not have any issues.

How can you keep variables between worlds

By iminblue, with 21 replies.
Last reply by iminblue, 15 days ago:

danpost wrote...

iminblue wrote...

I did it just as you said : addPlayer is in the World's code , and I try to call it from a method inside the Player class : << Code Omitted >> Using this directly in the act() method doesn't work either.

In line 3, you are trying to call addPlayer on an object of type Class (called yeet2). This will not work -- you cannot add a player to a class; you can only add a player to an object of type World (or, in your case, specifically, a yeet2 world instance). You create one on line 2 and name it w2. That is what you

Problem with Object Interaction

By wueschn, with 4 replies.
Last reply by wueschn, 16 days ago:

Thanks a lot, what a silly mistake.

Wombats and Leaves Fighting for a Leaf

By frogfrog, with 1 reply.
Replied to by danpost, 17 days ago:

Probably depends on the order you placed the wombats into the world.

SilentHunter115

Wombats and Leafs Limit Question

By SilentHunter115, with 1 reply.
Replied to by danpost, 17 days ago:

You could add the following as the first line in the foundLeaf method, to prevent "seeing" the leaf when count is 2: <Code Omitted>

Question

By tuffguy5, with 1 reply.
Replied to by danpost, 17 days ago:

You would probably need to use the getNeighbours method, determine if the list returned was empty or not and, if not, (randomly?) remove (eat) one that is in the list.

Wombats facing each other

By lucky555, with 1 reply.
Replied to by danpost, 17 days ago:

You could vertically mirror the image of the one on the right: <Code Omitted>However, this will probably redden the image and the mirroring would need done every time the wombat faces the opposite direction. Better would be to have two GreenfootImage fields in the class to hold a right-facing and a left-facing wombat. On any turn to 0 or 180 degrees, set the appropriate image.

Moving The Wombat

By Baseball19, with 1 reply.
Replied to by danpost, 17 days ago:

Make line 40: <Code Omitted>

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