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Questions tagged [box2d-joints]

10 questions
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Box2D Hierarchical Connection Between Bodies

I have a arbitrarily deep tree structure of bodies in box2d. When a parent body collides with anything, it should move its children along. On the other hand, if the child is moved due to a collision, the parent should not be touched. One body can be…
anlumo
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Box2D WeldJoint not working correctly

In front of my question, my english is very adventurous... In my libgdx application, I have implemented Box2D. So I created a World and add them 2 Bodys. The first Body is a PolygonShape set as box which is static and rotate in the middle of my…
Fabian König
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Getting dampingRatio to work with Box2D and DistanceJoint

I have tried unsuccessfully on several projects to get a distance joint to stop swinging forever in Box2D for JavaScript. No matter what values I set for the density of the bodies and the dampingRatio and frequencyHz of the distant joint definition…
Dan Zen
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How to make moving Kinematic platform with Box2d / LibGdx

I am currently working on a project and im trying to implement a moving platform that goes up and down continuously from A to B. I've tried some stuff and i can't get it to move. It appears as a box on the screen but it is static. This is my current…
el Kusn
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Revolute joint with box2d web, wheel not turning around own axis

I am trying to use revolute joints in node.js server, but my wheel is not turining around its own axis but around body. Here is my code: var joint_def = new b2RevoluteJointDef(); joint_def.Initialize(this.body , wheel,…
peterSweter
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Box2D: how do I make one body passively attached to another?

I'm trying to use joints in Box2D to have one body passively attached to another. For example: [B][A] Goal: When A attaches to B, B is always to the left of A. Other bodies should still collide with both B and A but I don't want B to have any…
C. Olimar
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Java Libgdx - Box2d setTransform multiple bodies with joints

I have a group of body, attached with some joints (wheel-joint, prismatic-joint, revolute-joint) I'm trying to move that group of body to a position with the method setTransform I decided to move only one body to the position, and others bodies…
LeSam
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What is soft constraint in box2d?

I am creating a mouse joint and I bump across this term, what it actually means. documentation for mouse joint:-"A mouse joint is used to make a point on a body track a specified world point. This a soft constraint with a maximum force. * This…
shubham
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Move a body emulating the movement of my finger on the screen at a constant speed

I need help with the following problem since I have invested many days without arriving at an acceptable solution. I'm doing an Android game (using libgdx) where the main character (named Hero) is seen from above (top-down view game) and walks on a…
Alvaro
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Trying to generate sword swinging attack using Box2D in Citrus Engine

I've been banging my head up against a wall for the past couple of days trying to figure out how to properly extend CitrusEngine's Box2DPhysicsObjects to generate my custom objects. My goal is to generate this behavior: example of desired…
Patrick Michaelsen
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