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Questions tagged [joints]

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Decreasing distance for a Configurable Joint at run-time | Unity

I have written a script that uses ConfigurableJoint to connect a ball to a hing so that it moves in a fixed circular path around the hinge. The problem is that I want to decrease the distance between ...
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Libgdx Box2D Triangle Joint behaviour

I have 3 Bodies (Nodes) that are connected in a triangualr shape using DistanceJoint's (Muscle). I'm increasing the length of the bottom Muscle(m). At a given point the "triangle" collapses and all 3 ...
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1answer
77 views

How to constrain a ball and chain like object?

Following up on this question, I have created a snakelike enemy which consists of a head followed by segments. I get the segments to follow the head by constraining each segment's position relative ...
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Unity3D Hinge Joint Ropes Unstable

I need to create several ropes to go on the head of a mop, which can be picked up and moved around as a physics object by the player. I've tried composing each thread out of several capsules connected ...
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Configurable Joint: how to create a FixedJoint, and Rotating it?

I have 2 rigidbody, in 2d view, non kinematic, and with no gravity, and want to connect them with a Configurable joint. I don't want the joint to be spring (I want the same distance always). But I ...
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2answers
232 views

Unity2D: Wrapping a line around an object

I have this 2d platformer made out of box colliders. I have the player connected to a point by a LineRenderer and a DistanceJoint2D, for use in physics puzzles. This tool lets him link to a location ...
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Move game object only on a line segment between two points

I am working on a VR project, and I am having a hard time figuring out how to move a gameobject on a line segment between two points. I have tried configured joint, it kinda worked. The problem is ...
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1answer
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Integrating collisions and constraints

Long story short, I had to roll my own physics engine for my game because box2D and similar packages weren't compatible with the portal based layouts in my game. So I've made a constraint system and ...
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1answer
70 views

How to Create Snakelike Objects

I am working on a 2D action platformer in Python, though my question is a general one about creating snakelike objects which move in a variety of patterns. I have noticed this kind of object in many ...
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0answers
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How to apply constraints to limb movements of a 3D human model?

I'm animating a 3D human model using playcanvas game engine according to the quaternion data provided by IMU sensors. How can I limit the movements of the limbs of the human model to avoid unrealistic ...
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Is it possible make an inverse Hinge Joint in Unity?

I would like to move two object at the same time but in opposite direction when one of this receive a force. The both have a Spring Joint (because I want they have Spring effect). How could I make ...
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1answer
280 views

Removing Hinge Joint from script doesn't work

I'm facing serious problem with handling hinge joints dynamically in Unity. I made bunch of chains and they are all linked for make something like "sealed door". When I remove HingeJoint component ...
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1answer
31 views

How to set end of joint that has fixed transform?

I'm implementing chains locked the door, and used Hinge joints to linked the chains like this picture: As you can see, last chain doesn't have connected body because it is end. And when the game ...
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1answer
44 views

box2d prismatic joint friction

I know it is possible to add friction to rev joints by enabling motor and adding maxMotorTorque. I want the same for prism joint but only ...
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0answers
304 views

How to add friction to Unity HingeJoint?

I attach a rigidbody to a HingeJoint in Unity. It's attached no at the the center of an anchor of a joint. To stop it from falling I set Use Motor = true, ...
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0answers
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{Maya 2017} Problem with Knee Joint Target

I am not very experienced with Game Development or Character Design/Rigging, but I am trying to learn and have hit my first roadblock with rigging a character. I used Maya 2017's QuickRig function ...
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1answer
41 views

How do I set the Tag of joints[] to what I want in this script?

Hello I got this big script for building a Rope from position a to position b. The joints are getting instantiated but the tag is default, what I have to change in the script to set the Tag of the ...
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2answers
760 views

Unity 2D ROPE connected to moving platform

Hey guys I have realy big problem with my rope. I use a hinge joints 2D to create my rope and distance joint to connect it with moving platform. On moving platform I have a distance joint that show ...
2
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1answer
46 views

Achieve same effect as a FixedJoint2D but also match RigidBody2D forces

Trying to make an object that is affected by rigidbody physics in exactly the same way as the object it's linked to. So torque, velocity, and any resultant torque or velocity from a collision. This ...
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1answer
78 views

Making plane with quad

I'm a beginner Unity 3d developer. I want to keep quads one aside another touching each other and use that as a road for making an endless runner game. The problem is each of the quads have their own ...
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1answer
182 views

Vertex Skinning, Bone matrices question

I'm creating a model/animation viewer in C# using OpenTK for a game's models. Before stating my problem I want to describe a bit what I've accomplished so far in case I'm fundamentally missing ...
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1answer
2k views

How do I configure a joint for a sliding door in Unity?

I have this sliding door where i want to use a joint to limit its motion: ...but I am confused about how to configure a joint to provide this sliding motion. I've found the Hinge Joint component, ...
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0answers
768 views

Unity 2D: How to make player grab a ledge, swing and jump to another

Since I'm not a native speaker, it's hard to explain in english what I want to achieve, so I'm gonna use a couple of images... basically I want to make an interaction of this type: in a 2D game, so ...
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1answer
305 views

Trouble With Physics Joints [Gamemaker]

I'm trying to create a series of physics-enabled 'ropes', with hard limits on how far they can swing left or right. They are comprised of an oRopeRoot kinematic ...
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1answer
326 views

How would joints work in an impulse-based physics engine?

I want to learn about physics engines, especially impulse-based ones. So I've followed along this tutorial to create some simple rigid-body physics: http://gamedevelopment.tutsplus.com/tutorials/how-...
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1answer
162 views

Joint based destructible physics (like Armadillo Run)

I've implemented a destructible terrain system like Worms before (where weapons create holes in the terrain), but for the game I'm designing I want something more like Armadillo Run: https://www....
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0answers
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Hinge/Configurable Joint rotating even if constrained

I already posted the question over on Unity forums, though, I have to say, this place often seems more professional and knowledgable, so here goes mirror post. I have a Cylinder with a Hinge and a ...
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0answers
208 views

Implementation of a quaternion based hinge constraint

I'm trying to implement a hinge joint between two rigid bodies based on Lagnange multipliers, s.t. constraint functions to be constraints on quaternions, which describe bodies orientation, itself. It'...
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2answers
606 views

Box2D LibGDX Body.getPosition() and Body.getWorldCenter() problems

I have a problem with my game in Java with Box2D and LibGDX I found out that when I use body.getPosition() it is only half of that of body.getWorldCenter(). The problem here is for me that I use ...
2
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1answer
3k views

Configurable Joint, linear limit range

I am working on a physics driven pressable button, but I cannot seem to tackle the minimum and maximum limits. This is the rig I have set up for the button (as it looks when pressed down). 2D view: ...