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#include "m_pd.h"
#include "math.h"
static t_class *tLine2D_class;
typedef struct _tLine2D {
t_object x_obj;
t_float X1, X2, Y1, Y2, P, P_old;
//extrem = Xmin, Ymin, Xmax, Ymax;
t_outlet *force_new;// outlet
t_outlet *profondeur;// outlet
t_outlet *vitesse;// outlet
} t_tLine2D;
void tLine2D_position2D(t_tLine2D *x, t_float X, t_float Y)
{
t_float a1, b1, c1, profondeur, tmp;
b1 = x->X2 - x->X1;
a1 = -x->Y2 + x->Y1;
if (!((a1==0) & (b1==0)))
{
tmp = sqrt((a1*a1)+(b1*b1)); // = longueur du vecteur pour renormalisation
a1 = a1/tmp;
b1 = b1/tmp;
c1 = a1*x->X1+b1*x->Y1;
profondeur = ( (a1 * X) + (b1 * Y) ) - c1;
tmp = profondeur - x->P_old;
x->P_old = profondeur;
outlet_float(x->vitesse, tmp);
outlet_float(x->profondeur, profondeur);
if ( ( profondeur < 0) & (profondeur > - x->P) )
{
outlet_float(x->force_new, 1);
}
else
{
outlet_float(x->force_new, 0);
}
}
else
{
outlet_float(x->force_new, 0);
}
}
void tLine2D_Xmin(t_tLine2D *x, t_float X)
{
x->X1= X;
}
void tLine2D_Xmax(t_tLine2D *x, t_float X)
{
x->X2= X;
}
void tLine2D_Ymin(t_tLine2D *x, t_float X)
{
x->Y1= X;
}
void tLine2D_Ymax(t_tLine2D *x, t_float X)
{
x->Y2= X;
}
void tLine2D_P(t_tLine2D *x, t_float X)
{
x->P= X;
}
void *tLine2D_new(t_symbol *s, int argc, t_atom *argv)
{
t_tLine2D *x = (t_tLine2D *)pd_new(tLine2D_class);
x->force_new=outlet_new(&x->x_obj, 0);
x->profondeur=outlet_new(&x->x_obj, 0);
x->vitesse=outlet_new(&x->x_obj, 0);
x->P_old=0;
if (argc>=5)
x->P = atom_getfloatarg(4, argc, argv);
else
x->P = 1;
if (argc>=4)
x->Y2 = atom_getfloatarg(3, argc, argv);
else
x->Y2 = 0;
if (argc>=3)
x->X2 = atom_getfloatarg(2, argc, argv);
else
x->X2 = 1;
if (argc>=2)
x->Y1 = atom_getfloatarg(1, argc, argv);
else
x->Y1 = 0;
if (argc>=1)
x->X1 = atom_getfloatarg(0, argc, argv);
else
x->X1 = -1;
return (x);
}
void tLine2D_setup(void)
{
tLine2D_class = class_new(gensym("tLine2D"),
(t_newmethod)tLine2D_new,
0, sizeof(t_tLine2D),
CLASS_DEFAULT, A_GIMME, 0);
class_addcreator((t_newmethod)tLine2D_new, gensym("pmpd.tLine2D"), A_GIMME, 0);
class_addmethod(tLine2D_class, (t_method)tLine2D_position2D, gensym("position2D"), A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(tLine2D_class, (t_method)tLine2D_Xmin, gensym("setX1"), A_DEFFLOAT, 0);
class_addmethod(tLine2D_class, (t_method)tLine2D_Ymin, gensym("setY1"), A_DEFFLOAT, 0);
class_addmethod(tLine2D_class, (t_method)tLine2D_Xmax, gensym("setX2"), A_DEFFLOAT, 0);
class_addmethod(tLine2D_class, (t_method)tLine2D_Ymax, gensym("setY2"), A_DEFFLOAT, 0);
class_addmethod(tLine2D_class, (t_method)tLine2D_P, gensym("setPmax"), A_DEFFLOAT, 0);
}
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