Questions tagged [body]
The body tag has no usage guidance.
29
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How would I calculate the velocity of a sphere with an impulse applied at the top?
I'm developing a rigid body physics engine and currently have accurately calculated the angular velocity of the sphere when impulsed. Unfortunately though, I'm not calculating the velocity correctly ...
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2
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1
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280
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Godot 3 - When body enters Area2D move Camera2D
I'm totally new to Godot 3 engine.
I want a game with static camera, so it can't smoothly follow player. I made an Area2D signal when_body_entered witch teleports main character to next area of map. ...
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211
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Box2D - Proper way to simulate player's body and feet
I'm new to LibGDX and Box2D, and I'm trying to create my player's body but got some issues.
I've created the ground as a ChainShape, and my player as a Rectangle. I want to attach a fixture for its ...
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86
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Data structure for a body
I'm writing a game in Java and am struggling to think how to appropriately manage character's bodies. My current structure is, in relevant part:
...
- 113
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How to rotate a rectangle body around a fixed point?
How to rotate a body around a point?
The body has x, y, speed and angle. Coordinates of the body relative to its center. Additional conditions: point position and distance from body to point.
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add physics to a group or container body in phaser
I'm developing a HTML5 Phaser game. In this game I do have a Group which I would like to behavior as a physics body (arcade-physics).
It is a character with a lot of moving parts (sprites) inside ...
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1
answer
363
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Problems managing collision filtering
I have my character fixture and body(is a tank), so when I press the screen it throws a rocket(which also has a body and a fixture) that the player can controlll touching the screen. My game also has ...
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2
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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 ...
- 23
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124
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Get a body from TiledMap via MapBodyBuilder and draw a sprite on it in LibGDX?
I use a various of MapBodyBuilder in my Libgdx project. I created a body from map.tmx via my MapBodyBuilder and in my SpriteBuilder buildSprite method i created its sprite:
...
- 21
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568
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Box2D collision between dynamic body
I'm implementing Box2D for my 2d top down LIBGDX game and i have some struggle with two dynamic body.
Currently, my two bodies are created that way :
...
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5
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1k
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Body lost a velocity component when hitting a wall
I am creating a Breakout game using Box2D (of LibGdx if anyone interest). Everything works well until when the ball hits the wall when moving with a very small angle. Please look at the image for ...
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672
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Unity3D + Kinect V2 | How to detect people when they are standing side to device
I can't detect people when they are standing/walking side to device.
I have used Miscrosoft's library for Unity3D to kinect and it works perfect when somebody stands direct front to Kinect device - ...
3
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2
answers
792
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2D Physics: What happens with torque when center of mass changes?
Novice programmer and explorer of simple 2D physics, here.
I have a simple 2D object made up of two rigid bodies connected at a fixed joint.
The two rigid objects can rotate freely about that fixed ...
- 125
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1
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691
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Box2dWeb: must fixtures be destroyed explicitly when destroying the body?
I use b2WorldObj.DestroyBody(bodyObj) to destroy the body when it is not needed anymore. The body has one fixture attached to it.
Do I need to destroy the fixture before destroying the body? or ...
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124
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Numerical integration of multiple off-center forces on a solid body
I am trying to develop a little simulation (for the sake of learning a little bit about physics) involving a circle (mass m, radius r, regular density) and two forces f1, f2 that can be applied on any ...
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How to rotate an image around its own center in AndEngine?
I'm beginner in Android programming with Andengine framework. And my question:
How to rotate an image around its own center in AndEngine?
I use Body and AnimatedSprite.
Update
This is my code:
<...
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Maintaining velocity of free fall body using Box2D in libGDX
I want to maintain the speed of a free-falling Box2D body using LibGDX. I'd like the vertical velocity increase with the level. I've applied a linear impulse and velocity actually increases like this:
...
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How to set a body to a specific position using Andengine
I'm developing a game with a single player and multiplayer mode. Lets say I have walls (static bodies), vehicles (dynamic bodies) and bullets (dynamic bodies).
It works fine to control my own vehicle ...
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118
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Need to join 2 bodies via weld joint but not on center of mass
I have successfully join 2 bodies via weld joint , but my problem is I want to join corners of bodies not on centre of mass. Is there any way to achieve this?
Above image consist 3 polygon body that ...
- 223
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1
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Movement of body after applying weld joint
I have two rectangular bodies. I've applied Weldjoint successfully on these bodies.
I want to move that joined body by applying linear impulse. After weld joint, ...
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coloring box2d body in LibGDX
I want to color polygon of box2d in LibGDX. Found below useful class for that.
http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/graphics/glutils/ShapeRenderer.html
But, it is not ...
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Libgdx explain steps for beginner to create and use image as a box2d body [closed]
I am basically from corona background and new to LibGdx , familiar with stage and actor from scene2D. Now wants to use physics body from box2d in the game besides using actor from scene2D.
But I ...
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Is there any quick and easy way to make all bodies visible with Farseer physics engine for XNA?
I just want to be able to see all my bodies on the screen for debugging purposes and i cant think of an easy way, for example i have make some edge fixtures with curved arcs attached and i just want ...
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423
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Dynamic body implementation
I am writing a 2D game where one of the characters has some very particular requirements. This character is a body with no particular shape (similar to a fluid, but not so much), it has to be able to ...
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How to move a static Body in Farseer 3.2 using touchpad
I'm developing a 2D game for windows phone using Xna and Farseer library. For now I have two objects/bodies. One is falling from the top and the other one which is static is at the button of the ...
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5
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5k
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Errors happen when using World.destroyBody( Body body )
on Android application using libgdx, when I use World.destroyBody( Body body ) method, once in a while the application suddenly shuts down.
Is there some setting I need to do with body collision or ...
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removing box2d objects before collision occurs
I am having a problem with a collision detection between the character and items, both created as box2d objects.
What I am trying to do is to delete the item or remove item from the collision method ...
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2k
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libgdx sprite position relative to body
Apologies if this is a reiteration, as I couldn't find another discussion of this over the past couple days.
Issue:
I'm using libgdx and box2d, and I'm currently updating the sprite's position to ...
- 236
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802
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Box2D/Farseer - Moving fixtures on a Static Body
I am attempting to create a Pool of Fixtures, in order to reduce memory consumption. My problem is that when I attempt to return a Fixture to the Pool and re-assign its position on the Parent Body, ...
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