Ball physical model of bouncing object

superclass: UGen

models the path of a bouncing object that is reflected by a vibrating surface 

*ar(in, g, damp, friction)

*kr(in, g, damp, friction)

in modulated surface level

g gravity

damp damping on impact

friction proximity from which on attraction to surface starts

// examples

// mouse x controls switch of level

(

{ 

var f, sf;

sf = K2A.ar(MouseX.kr > 0.5) > 0;

f = Ball.ar(sf, MouseY.kr(0.01, 20, 1), 0.01);

f = f * 10 + 500;

SinOsc.ar(f, 0, 0.2)

}.play;

)

// mouse x controls modulation rate

// mouse y controls gravity

(

{ 

var f, sf, g;

sf = LFNoise0.ar(MouseX.kr(1, 100, 1));

g = MouseY.kr(0.1, 10, 1);

f = Ball.ar(sf, g, 0.01, 0.01);

f = f * 140 + 500;

SinOsc.ar(f, 0, 0.2)

}.play;

)

// the general german police choir

// mouse x controls damping

// mouse y controls gravity

(

{ 

var f, sf, g;

sf = LFPulse.ar(0.6, 0.2, 0.5);

g = MouseY.kr(0.1, 10, 1);

d = MouseX.kr(0.0001, 1, 1);

f = Ball.ar(sf, g, d);

f = f * 140 + 400;

SinOsc.ar(f, 0, 0.2)

}.play;

)