box2d | Box2D is a 2D physics engine for games | Game Engine library

when i try to install gym[box2d] i get following error: i tried: pip install gym[box2d]. on anaconda prompt i installed swig and gym[box2d] but i code in python3.9 env and it still not working.(my text editor is pycharm) gym is already installed.and

I'm trying to install version 2.3.10 of package Box2D via pip. However pip returns the following error message:

I created few Box2D rope joints in libGDX. The ropes feel a bit too floppy. How can you make the ropes more stiff? The main Box2D project shows an option for stiffness in their testbed demo: The rope on the right side shows the desired stiffness:

Does such option exist in libGDX Box2D?

Thats how I create my ropes in libGDX:

I've been following along with the libGDX docs and I'm very new to Gradle and I almost know nothing about it and I ran into a problem that I couldn't fix. I tried fixing the not found problem by applying the plugin and adding classpath to it but it didn't work. Is there any way I can fix it? (Note: the problem is in html/build.gradle)

OS: Win64
IDE: Android Studio

Errors: Caused by: org.gradle.api.plugins.UnknownPluginException: Plugin with id 'org.wisepersist.gradle.plugins.get.GwtSuperDev' not found. (This is when I added the plugin) Plugin with id 'org.wisepersist.gradle.plugins.get.GwtSuperDev' not found.

build.gradle:

I am writing a new constructor and I have something like this:

I have a simple character move script and platform and circle spawn bounded to the left and right button. The character successfully doesn't jump when in the air, or against a wall, etc. except when it is in this state: example

This is because two collisions are happening at the same time, however the code should be able to handle this. Any help to solve this problem and anything to make the code less messy or less spaghetti will be very helpful, thanks!

(sorry for putting all the code, didn't know what to do)

main.py

I am trying to create small C++ program with SFML and I don't want to use the Xcode template. I am using VSCode.

I downloaded SFML for Mac, and copied the headers and dylibs to my project directory like so:

• include/ <- copied contents from the include directory (SFML dir with all headers)

• lib/ <- copied contents from the lib folder (all the dylib files)

main.cpp looks like this:

I'm trying to implement a simple AI for a 2D game in libGDX. The AI should make an enemy follow the player if the player is in range and if the enemy can see the player. To determine whether the enemy can see the player I'm using a raycast.

Now my problem is, that the raycast does not seem to collide with a static body in the Box2D world.

(It's just an assumption, that the static body is the problem, because it's working fine with a dynamic body)

Do raycasts in libGDX collide with static bodies by default? Or is there an other way to make a raycast collide with static bodies?

I couldn't find any information on this in the libGDX wiki or in the API.

I've tested the raycast AI with a dynamic body in between the enemy and the player:

Here the enemy with the raycast AI (the one in the upper left) is not moving towards the player (in the lower right) because there is a dynamic body in between them (the other enemy in the middle), which is correctly colliding with the raycast.

But if I put a static body in between the enemy and the player the raycast won't detect the static body, but only the dynamic body (that should be found later than the static body):

Here the static body in the middle is not detected by the raycast.

I've also tested to use setSleepingAllowed(false) on the static body, to make sure it's not just sleeping. But that also didn't fix it.