Questions tagged [rigidbody]
In game development, a rigidbody is usually referred to anything that is affected by physics.
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Switching a velocity from one rigid body to another in unity
I have a set up where the ground and the player move with physics and a stationary camera.
I want the ground to move faster when the player is getting further away making it look that the player is ...
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Rigidbody drifting after being stopped
I am struggling with an issue in Unity where I am stopping a rigidbody's motion, but after the motion is stopped the rigidbody still moves slightly. It is causing me major issues as I need the object ...
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How to move a Rigidbody2D to exactly match the movements of another body?
I'm recording the velocity of a Rigidbody2D using Animation Curves and I need to reproduce the same "movement" on an instantiated prefab (we really need "stuck like glue" movement ...
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How to convert slope handling code to work with AddForce instead of AddRelativeForce?
I an using the following code for handling slopes:
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Why doesn't jumping work if character is on upwards slope and moving forward?
I am having an issue where when I hit space to jump, the jump will only work (as in, launch player straight up into the air) only if I am (1) on flat ground (moving or standing still), (2) on a ...
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How to settle a rigid body to rest on flat surface
I am trying to simulate the behaviour of a rigid body, for example a cube, while it settles on a flat surface. Let's say it lends on an edge or even on a corner, and now it has to settle and remain on ...
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How to connect particles to rigid bodies in LiquidFun?
In vanilla Box2D various types of Joints can be used to connect two rigid bodies together. The LiquidFun extension brings the Particle Module, but I was unable to find a way to connect a particle/...
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Bullets shooting all over the place
I have created a simple player controller, which contains the player logic for a movement, aim and shooting bullets from a gun. Everything almost works, except the bullets shoot in random directions, ...
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Kinematic Rigidbody parented to a moving Rigidbody gets displaced
I have a kinematic Rigidbody parented to another non-kinematic moving Rigidbody. Render-wise, the child Rigidbody does not jitter, nor does it inherit any displacement changes from the parent ...
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How to adjust speed based on the angle of the Vector3 you are following?
I'm applying forces to a Rigidbody rb. The forces come from points along a spline splineComputer. The code says "find ...
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Motion of a cube after it bounces off a floor
I am trying to simulate what happens when a cube hits the floor after free fall. I am considering a situation in which cube hits the floor with its edge. There is obviously reaction force from the ...
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LedgeClimb script not choosing point to grab correctly when encountering Stacked meshes (meshes on top of one another)?
I created a script to climb ledges. It shoots 4 raycasts total:
-2 shooting straight forward from player (origins left and right of player)
-2 shooting down from forward&above player (origins left ...
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Why is my simple movement script making Capsule go into the air when movement is fast?
I am trying to create a simple movement script. Currently I don't have any jumping implemented; the movement script should just move rigidbody-based Capsule left, right, forward, backward based on ...
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Rigid Body is rolling/spinning on collision, is there a way to have it slide on surfaces instead?
I have a rigid body with a sphere as a collision mesh which can move and rotate freely. It realistically spins when colliding with other objects, but this is annoying from a gameplay standpoint. Is ...
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Different approaches to rigid-body movement
I'm a beginner at game development and I'm building my own physics game engine to grasp the concepts.
I wonder if there are different approaches to moving and rotating a rigid body. For example, ...
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When I rotate a game object, it keeps moving the same direction
When I try to rotate my game object, it keeps moving in same direction. I think there is pretty basic solution but couldn't figure it out.
Here is my code:
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How to move on vertical wall with gravity ticked for rigidbody
I am making a ball-rolling game. I want to implement an interaction where the ball can move on a specific area of a vertical wall like the game that the images show, but I don't know how to implement ...
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How to find combination of vectors to equal target velocity?
I have a space craft in a 3d world that moves along the X Z plane. Given that I have 4 thrusters with one at each cardinal direction, and the ship can rotate itself about the y axis. Is it possible to ...
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Rigidbody movement direction on slope not matching with player orientation
I've encountered an issue with my Rigidbody movement script on sloped surfaces. When moving up and down small slopes, the movement works as expected, but when moving up and down steep slopes I notice ...
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Use one collider for Rigidbody2D.Cast, and another for a hurtbox
I'd like to do the following:
Characters (player, enemies) have a collider for collision with the world (= other characters/obstacles/etc)
Characters have another collider acting as a hurtbox (most ...
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Imitate simplified bird-flight behavior
I am developing a first-person player movement in which the player should "fly" in the direction of his local forward vector.
This is working perfectly fine, however, when I turn the player ...
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Problems with knockback implementation
In 2D platformer I'm having difficulty with knockback feature that happens when character touches enemy.
That's implementation of it.
Character.cs:
...
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Player is able to interact with objects but enemy isn't able to
Newbie here, I have a player script that interacts with objects just fine and I made an enemy script for the same object and it gets completely ignored:
Below there are 4 scripts. The ...
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Why is Vector3.ProjectOnPlane() "drifting" further from desired rotation on steep slopes
I'm writing a simple player movement script in Unity 3D, and I've been using Vector3.ProjectOnPlane() to accomplish slope/ramp movement. For the most part, this ...
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how to have player stay on a rotating platform?
Im making a top down game in unity. in my game there is a platform where the player can stand on. while this platform is moving the player moves with it. here is an example:
This almost works like i ...
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Why do physic engines apply force fully linear, despite adding torque
I checked how the applyForce function on rigid bodies in 3 different physic engines work (cannon.js, matter.js, PhysicsJS) and it seems that this is the common way ...
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Moving player inside of moving spaceship?
INTRO:
I am trying to achieve a spaceship that flies through space and the pilot can get out of their seat and walk around the ship and place physics objects in it while the ship is moving, rotating, ...
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How can I pragmatically move a navmesh rigid body when changing scenes?
I have an object with both rigid body and NavMeshAgent attached Which I want to set to a new location on scene change, but there is something weird going on with it.
If I just try to set the position ...
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2D faux gravity walk/stick to a planet
I'm trying , to make a Player walk on a planet , through searching , I figured out that I can achieve this effect using Faux gravity , I tried to Implement it , but it's not working as intended:
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Plot rigidbody path simulating magnus effect
I am trying to create a method that will plot the path a rigidbody will take when simulating a magnus type effect with no gravity in Unity. I realize this approach is a drastic simplification to the ...
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Making interacting gears in 2D
I want to create mutually rotating gears for a puzzle game.
I looked at a lot of material, but didn't understand how to make a RigidBody2D stay in one place correctly and interact with each other.
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I'm using a *Floating* Capsule Collider, but it keeps contacting floor especially if I fall at high speeds?
I have the below code for a "Floating Capsule" style Rigidbody controller. Based largely on a tutorial (https://www.patreon.com/posts/astro-kat-moving-21343562) although I've modified it a ...
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Why do colliders have a tendency to spin and develop crazy angular velocity in Unity when used as my "player"?
I am trying to create a basic collider for a rigidbody player in Unity 3D. I have been experimenting with numerous shapes but found it hard to get what I want.
The primary issue seems to be if the ...
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How do I apply real time physics to a 2D game in Java?
I'm developing a 2D Brick Breaker style game in Java and want to apply some real time physics to it, especially to the paddle/ball interections. Nothing too complex; just applying some of the physics ...
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Unity3D object falling from high are passing through ground [duplicate]
First, you can see the bug in action here: https://www.youtube.com/watch?v=vqbo3rweEmA
When rigidbody objects are falling from high position (300 in my test), the ground collision doesn't works, the ...
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No Collision while rotating. Object rotating with Rigidbody.Rotate passes through other collider
I'm working on a 3D game, and having issues with the colliders.
My Cube Controller has movement input by keyboard, with collider and rigidbody components.
Cylinder objects have basic colliders and ...
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Is there a lighter way to implement "object stops when hit wall" without relying on Dynamic gameobjects in Unity3D (2D)?
I am currently using a Dynamic GameObject for my entities, but I feel as if that will risk slowing down the game on weaker hardware (especially when there are hundreds of entities). Not only that, but ...
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How do I get OnTriggerStay2D to consistently work in Unity?
(2D Project)
I have a very basic set-up in which I have a Hallway with a door and a bunch of other objects. I have a player that starts on the left side of the hallway and only moves on the x-axis.
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Why does my code intended to stop Rigidbody from sliding prevent player from jumping?
I have the following code which gives a Rigidbody capsule the ability to move and jump (if on layer Ground).
After Player stops input, the Rigidbody slides. I ...
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How to make a code-generated mesh interact with a rigidbody?
I'm using a sphere and an empty game object that generates a mesh upon playing/starting.
On the mesh, I place a Mesh Collider component with ...
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What causes Rigidbody character to suddenly move at fast speeds?
I'm trying to make a Rigidbody-based movement script for a character.
It behaves pretty much as expected, but every once in a while the character will suddenly run at a massive speed. I can't find a ...
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How to change fall delay of a gameobject by time?
I want my gameobjects to fall faster by time as the player collides with them. What I mean is, when the game starts, the gameobjects fall off after 1 second the player collided with them, but after 60 ...
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Maths behind Unity rigidbody.AddForce
I've tried to understand the Maths behind AddForce, as to reproduce it using rigidbody.velocity +=.
Based on the formulas ...
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How can I "zero out" velocity in an arbitrary direction?
I'm currently running into an issue with my character controller using physics-based movement of rigidbodies in Unity.
Here's an illustration of the issue I'm facing:
Basically, after a jump, my ...
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How to knock animated character backward when sword strikes wall
I was wondering how to make animation and physics interact.
Specifically, I want to make it so when my character (rigidbody) plays a sword hit animation (swinging the sword in front of it), it makes ...
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How do I use a ball as a wheel?
I'm brand new(ish) to Unity with a strong programming background. I understand the basics of "how to roll a ball" in Unity, but I have a custom model I made in Blender which I have imported ...
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Parent object does not rotate on its own axis with its children. How do I fix it?
My parent object components: Rigidbody2D and the script I shared below.
Children(Head, Body, Arm, Backpack...): There is only collider. There is no rigidbody2D. (I want the parent object to use the ...
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Firearm magazine ejection
I am playing around with a VR game where the player can fire a hand gun. When the magazine is empty they can press a button on the controller to eject the magazine from the gun. As its VR, I would ...
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Make a rigidbody walk around a planet
I have my character with a rigidbody and attracted by the planet. I am trying to move it with its velocity. I tried this script:
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