diff options
Diffstat (limited to 'tripleRand.c')
| -rw-r--r-- | tripleRand.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/tripleRand.c b/tripleRand.c new file mode 100644 index 0000000..136dd61 --- /dev/null +++ b/tripleRand.c @@ -0,0 +1,109 @@ +/* + * Copyright (c) 1997-1999 Mark Danks. + * For information on usage and redistribution, and for a DISCLAIMER OF ALL + * WARRANTIES, see the file, "GEM.LICENSE.TERMS" in this distribution. + */ + +#include "m_pd.h" +#include <stdlib.h> + +#ifndef MACOSX +#include <math.h> +#endif + +#ifdef NT +int random(void) +{ + static int foo = 1489853723; + foo = foo * (int)435898247 + (int)9382842987; + return (foo & 0x7fffffff); +} +#endif + +/* -------------------------- tripleRand ------------------------------ */ + +/* instance structure */ + +static t_class *tripleRand_class; + +typedef struct _tripleRand +{ + t_object x_obj; + t_float x_range[3]; + t_outlet *t_out1; /* the outlet */ +} t_tripleRand; + +void setTripleRandVals(t_tripleRand *x, t_symbol *s, int argc, t_atom *argv) +{ + if (argc < 1 || argc > 3) + { + error("tripleRand: Requires 1 - 3 values"); + return; + } + if (argc >= 1) + { + x->x_range[0] = atom_getfloat(&argv[0]); + if (x->x_range[0] < 0) x->x_range[0] = 0; + x->x_range[2] = x->x_range[1] = x->x_range[0]; + } + if (argc >= 2) + { + x->x_range[1] = atom_getfloat(&argv[1]); + if (x->x_range[1] < 0) x->x_range[1] = 0; + x->x_range[2] = x->x_range[1]; + } + if (argc >= 3) + { + x->x_range[2] = atom_getfloat(&argv[2]); + if (x->x_range[2] < 0) x->x_range[2] = 0; + } +} + +static void tripleRand_bang(t_tripleRand *x) +{ + int i; + t_atom argv[3]; + + for (i = 0; i < 3; i++) + { + float n = (float)((double)x->x_range[i] * (double)random() * (1. / 2147483648.)); + if (n > x->x_range[i]) n = x->x_range[i] - 1; + SETFLOAT((&argv[i]), (float)n); + } + + outlet_list(x->t_out1, &s_list, 3, argv); +} + +static void *tripleRand_new(t_floatarg arg1, t_floatarg arg2, t_floatarg arg3) +{ + t_tripleRand *x = (t_tripleRand *)pd_new(tripleRand_class); + if (arg1 < 0.f) + x->x_range[0] = 0.f; + else + x->x_range[0] = (float)arg1; + if (arg2 <= 0.f) + x->x_range[1] = x->x_range[0]; + else + x->x_range[1] = (float)arg2; + if (arg3 <= 0.f) + x->x_range[2] = x->x_range[1]; + else + x->x_range[2] = (float)arg3; + x->t_out1 = outlet_new(&x->x_obj, 0); + + inlet_new(&x->x_obj, &x->x_obj.ob_pd, &s_list, gensym("newVals")); + return (x); +} + +void tripleRand_setup(void) +{ + tripleRand_class = class_new(gensym("tripleRand"), (t_newmethod)tripleRand_new, 0, + sizeof(t_tripleRand), 0, A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0); + class_addbang(tripleRand_class, (t_method)tripleRand_bang); + class_addmethod(tripleRand_class, (t_method)setTripleRandVals, + gensym("newVals"), A_GIMME, A_NULL); + + class_sethelpsymbol(tripleRand_class, gensym("help-tripleRand")); +} + + |