AutoRand animating a controller with randomsteps. 

Inherits from: Object

See also: AutoLoop 

Creation / Class Methods

*new (ctl, spec, rd, exp, dt)

make an AutoRand

ctl -  the controller to randomize. e.g. an NumberBox, or EZSlider etc.

spec - its controlSpec,

rd - the normalized random offset (between 0 and 1) by which to mutate.

exp - the exponent for the random distribution: 

1 is linear distribution, 

2 is quadratically nearer the previous value

dt - a number, function or stream for the wait time between random moves.

(

w = Window("autorand").front; w.addFlowLayout;

e = EZSlider(w, 300@20, \freq, \freq); // the controller to randomize

a = AutoRand(e, e.controlSpec, 

rd: 0.2, // normalized variation is 0.2

exp: 1, // distrib is linear

dt: 0.5 // every half second

); // the autorand:

a.makeButton(w, Rect(0,0,20,20));

)

Accessing Instance and Class Variables

ctl the control to be randomly animated

tpx the taskproxy doing the random jumps

spec the controlspec by which to unmap

rd_(val) set the maximum random jump value, between 0 and 1

rd get the maximum random jump value

a.rd_(1.0);

exp_(val) set the exponent for the distribution shape : 1 is lin, 2 is quadratic etc.

exp set the exponent for the distribution shape

a.exp_(3); // higher exponents mean: prefer smaller jumps, big ones rarely

dt_(val) set the function or value for the wait time between random moves.

dt

instance methods: 

play

a.play;

stop

a.stop;

makeButton (parent, bounds)

Put a stop/start button on a parent view or window

parent -  the parent view (window or compositeview)

bounds - a rect with the button size.