Repulsion

Repulsion is a force that repels (attracts) bodies away (towards) each other. A repulsion of negative strength is attractive.

Overview

Options
Methods
LINEAR
MORSE
INVERSE
GRAVITY
strength
anchor
radii
cutoff
cap
decayFunction
applyForce

Repulsion(options)

Constructor Parameters

options

Object

overwrites default options

Methods

LINEAR(r, cutoff)

A linear decay function

Parameters
r
Number
distance from the source body
cutoff
Number
the effective radius of influence

MORSE(r, cutoff)

A Morse potential decay function (http://en.wikipedia.org/wiki/Morse_potential)

Parameters
r
Number
distance from the source body
cutoff
Number
the minimum radius of influence

INVERSE(r, cutoff)

An inverse distance decay function

Parameters
r
Number
distance from the source body
cutoff
Number
a distance shift to avoid singularities

GRAVITY(r, cutoff)

An inverse squared distance decay function

Parameters
r
Number
distance from the source body
cutoff
Number
a distance shift to avoid singularities

strength()

The strength of the force Range : [0, 100]

anchor()

The location of the force, if not another physics body

radii()

The range of the repulsive force

cutoff()

A normalization for the force to avoid singularities at the origin

cap()

The maximum magnitude of the force Range : [0, Infinity]

decayFunction()

The type of decay the repulsive force should have

applyForce(targets, source)

Adds a drag force to a physics body's force accumulator.

Parameters
targets
Array.Body
Array of bodies to apply force to.
source
Body
The source of the force