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#include "m_pd.h"
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
static t_class *oneoverf_class;
static t_class *chaosgame_class;
/*
* Implementation of 1/f noise sequences
*/
typedef struct _oneoverf {
t_object x_obj;
// t_int nrp;
t_int nrbits;
t_float bits;
t_float output;
t_float rans[32];
// t_int count[16];
t_int counter;
// t_float avg[16];
t_outlet *note_out;//,*r_out,*n_out;
} t_oneoverf;
void oneoverf_bang(t_oneoverf *x)
{
if ((t_int) x->bits != x->nrbits) {
post("Changed number of bits");
x->nrbits = (t_int) x->bits;
x->counter = 0;
}
int i;
outlet_float(x->note_out, x->output);
//outlet_float(x->r_out, x->nrp);
//outlet_float(x->n_out, x->nrp);
x->output = 0; // ((t_float) rand())/RAND_MAX/x->nrbits;
x->counter++;
for (i=x->nrbits-1;i>=0;i--) {
// x->avg[i] = ((t_float) (x->avg[i]*(x->count[i]-1)+x->old))/x->count[i];
if (x->counter%((int) pow(2,i)) == 0) {
if (i == x->nrbits-1) x->counter = 0;
// x->count[i] = 1;
// x->avg[i] = 0;
x->rans[i] = ((t_float) rand())/RAND_MAX/x->nrbits;
post("Changing value of %d, counter: %d",i,x->counter);
i = -1; // break
}
}
for (i=0;i<x->nrbits;i++) {
x->output += x->rans[i];
}
}
void *oneoverf_new(t_floatarg f1)
{
t_oneoverf *x = (t_oneoverf *)pd_new(oneoverf_class);
int i;
x->bits = f1;
x->nrbits = (t_int) f1;
if (f1 < 1) x->nrbits = 1;
else if (f1 > 32) x->nrbits = 32;
x->output = 0;
x->counter = 0;
for (i=0;i<x->nrbits;i++) {
x->rans[i] = (((t_float) rand())/RAND_MAX)/x->nrbits;
// x->count[i] = 1;
// x->avg[i] = 0;
x->output += x->rans[i];
post("Random generators: %d", x->nrbits);
}
x->note_out = outlet_new(&x->x_obj,&s_float);
floatinlet_new(&x->x_obj, &x->bits);
//x->r_out = outlet_new(&x->x_obj,&s_float);
//x->n_out = outlet_new(&x->x_obj,&s_float);
return (void *)x;
}
/*
* Implementation of the chaos game!
*/
typedef struct _chaosgame {
t_object x_obj;
t_float x,y;
t_float px[3],py[3];
t_outlet *x_out,*y_out;
} t_chaosgame;
void chaosgame_bang(t_chaosgame *x)
{
int i;
outlet_float(x->x_out, x->x);
outlet_float(x->y_out, x->y);
i = 3*rand()/32765;
x->x = (x->x + x->px[i])/2;
x->y = (x->y + x->py[i])/2;
}
void *chaosgame_new(t_floatarg f1)
{
t_chaosgame *x = (t_chaosgame *)pd_new(chaosgame_class);
x->px[0] = -1;
x->py[0] = -1;
x->px[1] = 0;
x->py[1] = 1;
x->px[2] = 1;
x->py[2] = -1;
x->x = rand()/RAND_MAX;
x->y = rand()/RAND_MAX;
x->x_out = outlet_new(&x->x_obj,&s_float);
x->y_out = outlet_new(&x->x_obj,&s_float);
return (void *)x;
}
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