Curve

A constraint that keeps a physics body on a given implicit curve regardless of other physical forces are applied to it. A curve constraint is two surface constraints in disguise, as a curve is the intersection of two surfaces, and is essentially constrained to both

Overview

Options
equation
plane
period
number
Methods
applyConstraint

Curve(options)

Constructor Parameters

options

Options

An object of configurable options.

equation
Function
An implicitly defined surface f(x,y,z) = 0 that body is constrained to e.g. function(x,y,z) { x*x + y*y - r*r } corresponds to a circle of radius r pixels
plane
Function
An implicitly defined second surface that the body is constrained to
period
Number
The spring-like reaction when the constraint is violated
number
Number
The damping-like reaction when the constraint is violated
Methods

applyConstraint(targets, source, dt)

Adds a curve impulse to a physics body.

Parameters
targets
Array.Body
Array of bodies to apply force to.
source
Body
Not applicable
dt
Number
Delta time