Box2dWeb is port of box2dFlash port to javascript.
Box2dWeb is a physics engine and it's basically a port of Box2DFlash library to JavaScript.
Questions tagged [box2dweb]
95 questions
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Box2dWeb: Object Rotation - GetWorldCenter not found
I'm trying to make a function for a skydiving game that'll make a sprite rotate left/right and then move that way depending on how angled it is, at least i would be if the object's get world centre parameter was recognised, code is as…
Harry Main
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Get all particles in particle group liquidfun javascript
I am using liquidfun.js and I wanted to set the color of the water, but I am using spawnParticles to spawn the water, and I don't know how to get all the particles in a particle group.
Current code:
let particles = spawnParticles(1, 0, 5)
Yaumama
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How to find if top of rectangle collided or not in box2d
I have rectangular player in top down game. I want to find which side(to be specific top of rectangle ) of rectangle is hit by other game objects.
JustStarted
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Finding collision point outside of contact listener in Box2D
So, I have a scenario in a Box2D project where a sensor "eye" (basically a line) collides with one or more objects, and I want to find the one that's closest to the bottom of the eye. This means that for each fixture colliding with the eye, I'd like…
mostsquares
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collision two sprite dynamic and static and stop moving
i have two sprite
var enemy1 = game.add.sprite(200 + 1*200,180,'enemy');
game.physics.box2d.enable(enemy1);
enemy1.body.static = true;
m_ship = game.add.sprite(150 + i * 125, 300, 'ship');
m_ship.scale.set(2);
m_ship.smoothed =…
user836080
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How to use ApplyForce with box2DWeb
I have a Box2DWeb sketch working ok but I am unable to figure out how to use the ApplyForce method with a body. I have attached the working codepen. On line 85, I have commented out the line that I thought would work but everything disappears when I…
steven
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Box2dWeb bodies not colliding
I've implemented Box2dWeb into a Node.js server and everything works fine apart from collisions. When there are 2 players connected their bodies don't collide - just go through each other. Here's the player body creation code:
//World creation
var…
coNNecTT
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Trying to move a dynamic body in box2dweb on keypress
I have created a dynamic_body and I want to move that body using an EventListener.
But, I can't access the body and there is an issue with ApplyImpulse() or the ApplyForce() function in my code. But I can't see it. What am I missing?
function init()…
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How can I get the canvas context to follow a body in Box2dWeb?
I am uing Box2D.Dynamics.b2DebugDraw to render my Box2dWeb world. How can I get the canvas to remain centered on a moving body?
var debugDraw = new…
sennett
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Is there a way to achieve change in gravitational pull using box2d?
I am trying to create a scene where first half has gravity from the top and second half has gravity at the bottom.
How do I achieve this in Box2D as I can only define gravity for the whole world.
Do I need to split screen into two worlds ?
Amogh Talpallikar
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context is not defined, javascript
function moveCamera() {
var canvas_holder = document.getElementById("game");
var context = canvas_holder.getContext("2d");
// camera code
// START
// Viewport height
var eye = $("#container").height();
// canvas height
var…
user3676606
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Why is this file not running the javascript that is in example5.js?
I found this code on the internet. I pasted into my notepad++ and then changed these two files to match the ones that I created on my desktop.
Doug Hauf
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In box2dweb how to destroy created body
I create bodies at mouse click with this pretty standard way in box2dweb:
*stage.onMouseDown = function(){
var fixDef = new box2d.b2FixtureDef;
fixDef.density = 1;
fixDef.friction = 0.5;
fixDef.restitution = 0.7;
var bodyDef…
user3190749
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Box2d bodies unstable and does not come to rest
I was trying to experiment with box2d as a PoC for a game project, well i managed to create the world and bodies and default DebugDraw in place. Have been playing with restitution, density and friction but could not get the desired behavior and the…
Kushal Likhi
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how does this code in box2dweb simulating the universal gravitation and why does it use a if statement?
b2GravityController.prototype.Step = function (step) {
var i = null;
var body1 = null;
var p1 = null;
var mass1 = 0;
var j = null;
var body2 = null;
var p2 = null;
var dx = 0;
var dy = 0;
var r2 = 0;
var f = null;
if…
zeng.js
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