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+
+
+/*
+ msd2D - mass spring damper model for Pure Data or Max/MSP
+
+ Written by Nicolas Montgermont for a Master's train in Acoustic,
+ Signal processing and Computing Applied to Music (ATIAM, Paris 6)
+ at La Kitchen supervised by Cyrille Henry.
+
+ Based on Pure Data by Miller Puckette and others
+ Use FLEXT C++ Layer by Thomas Grill (xovo@gmx.net)
+ Based on pmpd by Cyrille Henry
+
+
+ Contact : Nicolas Montgermont, montgermont@la-kitchen.fr
+ Cyrille Henry, Cyrille.Henry@la-kitchen.fr
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Version 0.01, 12.04.2005
+
+*/
+
+// include flext header
+#include <flext.h>
+
+#include <math.h>
+
+// define constants
+#define MSD2D_VERSION 0.01
+#define nb_max_link 4000
+#define nb_max_mass 4000
+#define Id_length 20
+
+// check for appropriate flext version
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 401)
+#error You need at least flext version 0.4.1
+#endif
+
+#define max(a,b) ( ((a) > (b)) ? (a) : (b) )
+#define min(a,b) ( ((a) < (b)) ? (a) : (b) )
+
+typedef struct _mass {
+ t_symbol *Id;
+ t_int nbr;
+ t_int mobile;
+ t_float invM;
+ t_float speedX;
+ t_float posX;
+ t_float posX2;
+ t_float forceX;
+ t_float out_forceX;
+ t_float speedY;
+ t_float posY;
+ t_float posY2;
+ t_float forceY;
+ t_float out_forceY;
+ char Id_string[Id_length];
+} t_mass;
+
+typedef struct _link {
+ t_symbol *Id;
+ t_int nbr;
+ t_mass *mass1;
+ t_mass *mass2;
+ t_float K1, D1, D2;
+ t_float longx, longy, longueur;
+ t_float distance_old;
+ char Id_string[Id_length];
+} t_link;
+
+class msd2D:
+ public flext_base
+{
+ FLEXT_HEADER_S(msd2D,flext_base,setup) //class with setup
+
+public:
+ // constructor with no arguments
+ msd2D(int argc,t_atom *argv)
+ {
+ nb_link = 0;
+ nb_mass = 0;
+ id_mass = 0;
+ id_link = 0;
+
+ // --- define inlets and outlets ---
+ AddInAnything("bang, reset, etc."); // default inlet
+ AddOutAnything("infos on masses"); // outlet for integer count
+ AddOutAnything("control"); // outlet for bang
+ }
+
+protected:
+
+// --------------------------------------------------------------- RESET
+
+ void m_reset()
+ {
+ t_int i;
+ t_atom sortie[0];
+
+ for (i=0; i<nb_mass; i++) {
+ delete mass[i];
+ }
+ for (i=0; i<nb_link; i++) {
+ delete link[i];
+ }
+ ToOutAnything(1,gensym("Reset"),0,sortie);
+ nb_link = 0;
+ nb_mass = 0;
+ id_mass = 0;
+ id_link = 0;
+ }
+
+// -------------------------------------------------------------- COMPUTE
+
+ void m_bang()
+ {
+ t_float F=0,Fx=0,Fy=0,distance,vitesse, X_new, Y_new;
+ t_int i;
+ struct _mass mass_1, mass_2;
+
+ for (i=0; i<nb_link; i++) {
+ // compute link forces
+ distance = sqrt(pow(link[i]->mass1->posX-link[i]->mass2->posX,2) +
+ pow(link[i]->mass1->posY-link[i]->mass2->posY,2));
+ F = link[i]->K1 * (distance - link[i]->longueur) ; // F = k1(x1-x2)
+ F += link[i]->D1 * (distance - link[i]->distance_old) ; // F = F + D1(v1-v2)
+ if (distance != 0) {
+ Fx = F * (link[i]->mass1->posX - link[i]->mass2->posX)/distance;
+ Fy = F * (link[i]->mass1->posY - link[i]->mass2->posY)/distance;
+ }
+ link[i]->mass1->forceX -= Fx;
+ link[i]->mass1->forceX -= link[i]->D2*link[i]->mass1->speedX;
+ link[i]->mass2->forceX += Fx;
+ link[i]->mass2->forceX -= link[i]->D2*link[i]->mass2->speedX;
+ link[i]->mass1->forceY -= Fy;
+ link[i]->mass1->forceY -= link[i]->D2*link[i]->mass1->speedY;
+ link[i]->mass2->forceY += Fy;
+ link[i]->mass2->forceY -= link[i]->D2*link[i]->mass2->speedY;
+ link[i]->distance_old = distance;
+ }
+
+ for (i=0; i<nb_mass; i++)
+ // compute new masses position only if mobile = 1
+ if (mass[i]->mobile == 1) {
+ X_new = mass[i]->forceX * mass[i]->invM + 2*mass[i]->posX - mass[i]->posX2;
+ mass[i]->posX2 = mass[i]->posX;
+ mass[i]->posX = max(min(X_new,Xmax),Xmin); // x = x + v
+ mass[i]->speedX = mass[i]->posX - mass[i]->posX2; // v = v + F/M
+ Y_new = mass[i]->forceY * mass[i]->invM + 2*mass[i]->posY - mass[i]->posY2;
+ mass[i]->posY2 = mass[i]->posY;
+ mass[i]->posY = max(min(Y_new,Ymax),Ymin); // x = x + v
+ mass[i]->speedY = mass[i]->posY - mass[i]->posY2; // v = v + F/M
+ }
+
+ for (i=0; i<nb_mass; i++) {
+ // clear forces
+ mass[i]->out_forceX = mass[i]->forceX;
+ mass[i]->forceX = 0;
+ mass[i]->out_forceY = mass[i]->forceY;
+ mass[i]->forceY = 0;
+ }
+ }
+
+// -------------------------------------------------------------- MASSES
+
+ void m_mass(int argc,t_atom *argv)
+ // add a mass
+ // Id, nbr, mobile, invM, speedX, posX, forceX
+ {
+ t_atom sortie[6], aux[2];
+ int M;
+
+ mass[nb_mass] = new t_mass; // new pointer
+ mass[nb_mass]->Id = GetASymbol(argv[0]); // ID
+ mass[nb_mass]->mobile = GetAInt(argv[1]); // mobile
+ if (GetAInt(argv[2])==0)
+ M=1;
+ else M = GetAInt(argv[2]);
+ mass[nb_mass]->invM = 1/((float)M); // invM
+ mass[nb_mass]->speedX = 0; // vx[n]
+ mass[nb_mass]->posX = GetAInt(argv[3]); // x[n]
+ mass[nb_mass]->posX2 = GetAInt(argv[3]); // x[n-1]
+ mass[nb_mass]->forceX = 0; // Fx[n]
+ mass[nb_mass]->speedY = 0; // vy[n]
+ mass[nb_mass]->posY = GetAInt(argv[4]); // y[n]
+ mass[nb_mass]->posY2 = GetAInt(argv[4]); // y[n-1]
+ mass[nb_mass]->forceY = 0; // Fy[n]
+ mass[nb_mass]->nbr = id_mass; // id_nbr
+ SETSYMBOL(aux,GetASymbol(argv[0]));
+ atom_string(aux,mass[nb_mass]->Id_string,Id_length);
+ nb_mass++ ;
+ id_mass++;
+ nb_mass = min ( nb_max_mass -1, nb_mass );
+ SETFLOAT(&(sortie[0]),id_mass-1);
+ SETSYMBOL(&(sortie[1]),GetASymbol(argv[0]));
+ SETFLOAT(&(sortie[2]),mass[nb_mass-1]->mobile);
+ SETFLOAT(&(sortie[3]),M);
+ SETFLOAT(&(sortie[4]),mass[nb_mass-1]->posX);
+ SETFLOAT(&(sortie[5]),mass[nb_mass-1]->posY);
+ ToOutAnything(1,gensym("Mass"),6,sortie);
+ }
+
+ void m_forceX(int argc,t_atom *argv)
+ {
+ // add a force to mass(es) named Id
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_mass;i++)
+ {
+ aux = strcmp(buffer,mass[i]->Id_string);
+ if (aux == 0)
+ mass[i]->forceX += GetAFloat(argv[1]);
+ }
+ }
+
+ void m_forceY(int argc,t_atom *argv)
+ {
+ // add a force to mass(es) named Id
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_mass;i++)
+ {
+ aux = strcmp(buffer,mass[i]->Id_string);
+ if (aux == 0)
+ mass[i]->forceY += GetAFloat(argv[1]);
+ }
+ }
+
+ void m_posX(int argc,t_atom *argv)
+ {
+ // displace mass(es) named Id to a certain position
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ if (GetAFloat(argv[1]) < Xmax && GetAFloat(argv[1]) > Xmin)
+ {
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_mass;i++)
+ {
+ aux = strcmp(buffer,mass[i]->Id_string);
+ if (aux == 0)
+ mass[i]->posX = GetAFloat(argv[1]);
+ }
+ }
+ }
+
+ void m_posY(int argc,t_atom *argv)
+ {
+ // displace mass(es) named Id to a certain position
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ if (GetAFloat(argv[1]) < Ymax && GetAFloat(argv[1]) > Ymin)
+ {
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_mass;i++)
+ {
+ aux = strcmp(buffer,mass[i]->Id_string);
+ if (aux == 0)
+ mass[i]->posY = GetAFloat(argv[1]);
+ }
+ }
+ }
+
+ void m_set_mobile(int argc,t_atom *argv)
+ {
+ // set mass No to mobile
+ t_int i,aux;
+
+ aux = GetAInt(argv[0]);
+ for (i=0; i<nb_mass;i++)
+ {
+ if (mass[i]->nbr == aux)
+ mass[i]->mobile = 1;
+ }
+
+ }
+
+ void m_set_fixe(int argc,t_atom *argv)
+ {
+ // set mass No to fixed
+ t_int i,aux;
+
+ aux = GetAInt(argv[0]);
+ for (i=0; i<nb_mass;i++)
+ {
+ if (mass[i]->nbr == aux)
+ mass[i]->mobile = 0;
+ }
+
+ }
+
+ void m_delete_mass(int argc,t_atom *argv)
+ {
+ // Delete mass
+ t_int i,nb_link_delete=0;
+ t_atom sortie[6], aux[nb_link];
+
+ for (i=0; i<nb_link;i++) {
+ if (link[i]->mass1->nbr == GetAInt(argv[0]) || link[i]->mass2->nbr == GetAInt(argv[0])) {
+ SETFLOAT(&(aux[nb_link_delete]),link[i]->nbr);
+ nb_link_delete++;
+ }
+ }
+
+ for (i=0; i<nb_link_delete;i++)
+ m_delete_link(1,&aux[i]);
+
+
+ for (i=0; i<nb_mass;i++)
+ if (mass[i]->nbr == GetAInt(argv[0])) {
+ SETFLOAT(&(sortie[0]),mass[i]->nbr);
+ SETSYMBOL(&(sortie[1]),mass[i]->Id);
+ SETFLOAT(&(sortie[2]),mass[i]->mobile);
+ SETFLOAT(&(sortie[3]),1/mass[i]->invM);
+ SETFLOAT(&(sortie[4]),mass[i]->posX);
+ SETFLOAT(&(sortie[5]),mass[i]->posY);
+ delete mass[i];
+ mass[i] = mass[nb_mass-1];
+ nb_mass--;
+ ToOutAnything(1,gensym("Mass deleted"),6,sortie);
+ break;
+ }
+ }
+
+
+ void m_Xmax(int argc,t_atom *argv)
+ {
+ // set damping of link(s) named Id
+ Xmax = GetAFloat(argv[0]);
+ }
+
+ void m_Ymax(int argc,t_atom *argv)
+ {
+ // set damping of link(s) named Id
+ Ymax = GetAFloat(argv[0]);
+ }
+
+ void m_Xmin(int argc,t_atom *argv)
+ {
+ // set damping of link(s) named Id
+ Xmin = GetAFloat(argv[0]);
+ }
+
+ void m_Ymin(int argc,t_atom *argv)
+ {
+ // set damping of link(s) named Id
+ Ymin = GetAFloat(argv[0]);
+ }
+
+// -------------------------------------------------------------- LINKS
+
+ void m_link(int argc,t_atom *argv)
+ // add a link
+ // Id, nbr, *mass1, *mass2, K1, D1
+ {
+ t_atom sortie[7], aux[2];
+ t_int i;
+
+ link[nb_link] = new t_link;
+ link[nb_link]->Id = GetASymbol(argv[0]);
+ for (i=0; i<nb_mass;i++)
+ if (mass[i]->nbr==GetAInt(argv[1]))
+ link[nb_link]->mass1 = mass[i];
+ else if(mass[i]->nbr==GetAInt(argv[2]))
+ link[nb_link]->mass2 = mass[i];
+ link[nb_link]->K1 = GetAFloat(argv[3]);
+ link[nb_link]->D1 = GetAFloat(argv[4]);
+ link[nb_link]->D2 = GetAFloat(argv[5]);
+ link[nb_link]->longx = link[nb_link]->mass1->posX - link[nb_link]->mass2->posX;
+ link[nb_link]->longy = link[nb_link]->mass1->posY - link[nb_link]->mass2->posY;
+ link[nb_link]->longueur = sqrt( pow(link[nb_link]->longx,2) + pow(link[nb_link]->longy,2));
+ link[nb_link]->nbr = id_link;
+ link[nb_link]->distance_old = link[nb_link]->longueur;
+ SETSYMBOL(aux,GetASymbol(argv[0]));
+ atom_string(aux,(link[nb_link]->Id_string),Id_length);
+ nb_link++;
+ id_link++;
+ nb_link = min ( nb_max_link -1, nb_link );
+ SETFLOAT(&(sortie[0]),id_link-1);
+ SETSYMBOL(&(sortie[1]),link[nb_link-1]->Id);
+ SETFLOAT(&(sortie[2]),GetAInt(argv[1]));
+ SETFLOAT(&(sortie[3]),GetAInt(argv[2]));
+ SETFLOAT(&(sortie[4]),link[nb_link-1]->K1);
+ SETFLOAT(&(sortie[5]),link[nb_link-1]->D1);
+ SETFLOAT(&(sortie[6]),link[nb_link-1]->D2);
+ ToOutAnything(1,gensym("Link"),7,sortie);
+ }
+
+ void m_ilink(int argc,t_atom *argv)
+ // add interactor link
+ // Id, nbr, Id masses1, Id masses2, K1, D1
+ {
+ t_atom aux[2], arglist[6];
+ t_int i,j, strvalue, strvalue2, imass1[nb_mass], nbmass1=0, imass2[nb_mass], nbmass2=0;
+ char buffer[Id_length], buffer2[Id_length];
+
+ ToOutAnything(1,gensym("iLink"),0,aux);
+ SETSYMBOL(aux,GetASymbol(argv[1]));
+ atom_string(aux, buffer, Id_length);
+ SETSYMBOL(aux,GetASymbol(argv[2]));
+ atom_string(aux, buffer2, Id_length);
+
+ for (i=0;i<nb_mass;i++) {
+ strvalue=strcmp(buffer,mass[i]->Id_string);
+ strvalue2=strcmp(buffer2,mass[i]->Id_string);
+ if (strvalue ==0) {
+ imass1[nbmass1]=i;
+ nbmass1++;
+ }
+ if (strvalue2 ==0) {
+ imass2[nbmass2]=i;
+ nbmass2++;
+ }
+ }
+
+ for(i=0;i<nbmass1;i++)
+ for(j=0;j<nbmass2;j++)
+ if (imass1[i] != imass2[j]) {
+ SETSYMBOL(&(arglist[0]),GetASymbol(argv[0]));
+ SETFLOAT(&(arglist[1]),mass[imass1[i]]->nbr);
+ SETFLOAT(&(arglist[2]),mass[imass2[j]]->nbr);
+ SETFLOAT(&(arglist[3]),GetAInt(argv[3]));
+ SETFLOAT(&(arglist[4]),GetAFloat(argv[4]));
+ SETFLOAT(&(arglist[5]),GetAFloat(argv[5]));
+ m_link(6,arglist);
+ }
+ }
+
+ void m_setK(int argc,t_atom *argv)
+ {
+ // set rigidity of link(s) named Id
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_link;i++)
+ {
+ aux = strcmp(buffer,link[i]->Id_string);
+ if (aux == 0)
+ link[i]->K1 = GetAFloat(argv[1]);
+ }
+ }
+
+ void m_setD(int argc,t_atom *argv)
+ {
+ // set damping of link(s) named Id
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_link;i++)
+ {
+ aux = strcmp(buffer,link[i]->Id_string);
+ if (aux == 0)
+ link[i]->D1 = GetAFloat(argv[1]);
+ }
+ }
+
+ void m_setD2(int argc,t_atom *argv)
+ {
+ // set damping of link(s) named Id
+ t_int i,aux;
+ t_atom atom[2];
+ char buffer[Id_length];
+
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, Id_length);
+ for (i=0; i<nb_link;i++)
+ {
+ aux = strcmp(buffer,link[i]->Id_string);
+ if (aux == 0)
+ link[i]->D2 = GetAFloat(argv[1]);
+ }
+ }
+
+ void m_delete_link(int argc,t_atom *argv)
+ {
+ // Delete link
+ t_int i;
+ t_atom sortie[7];
+
+ for (i=0; i<nb_link;i++)
+ if (link[i]->nbr == GetAInt(argv[0])) {
+ SETFLOAT(&(sortie[0]),link[i]->nbr);
+ SETSYMBOL(&(sortie[1]),link[i]->Id);
+ SETFLOAT(&(sortie[2]),link[i]->mass1->nbr);
+ SETFLOAT(&(sortie[3]),link[i]->mass2->nbr);
+ SETFLOAT(&(sortie[4]),link[i]->K1);
+ SETFLOAT(&(sortie[5]),link[i]->D1);
+ SETFLOAT(&(sortie[6]),link[i]->D2);
+ delete link[i];
+ link[i]=link[nb_link-1];
+ nb_link--;
+ ToOutAnything(1,gensym("Link deleted"),7,sortie);
+ break;
+ }
+ }
+
+
+// -------------------------------------------------------------- GET
+
+ void m_get(int argc,t_atom *argv)
+ // get attributes
+ {
+ t_int i,j, auxstring1, auxstring2, auxstring3, aux;
+ t_symbol *auxarg;
+ t_atom sortie[4],atom[2];
+ char buffer[Id_length],masses[]="massesPos",buffer2[Id_length], forces[] = "massesForces", links[] = "linksPos";
+
+ SETSYMBOL(atom,GetASymbol(argv[0]));
+ atom_string(atom, buffer, 20);
+ auxstring1 = strcmp(buffer,masses); //auxstring1 : 0 masses, 1 else
+ auxstring2 = strcmp(buffer,forces); //auxstring2 : 0 forces, 1 else
+ auxstring3 = strcmp(buffer,links); //auxstring2 : 0 links, 1 else
+ auxarg = GetASymbol(argv[1]); //auxarg : & symbol, 0 else
+ if (argc == 1)
+ {
+ if (auxstring1 == 0)// get all masses positions
+ for (i=0; i<nb_mass; i++)
+ {
+ SETFLOAT(&sortie[0],mass[i]->posX);
+ SETFLOAT(&sortie[1],mass[i]->posY);
+ ToOutAnything(0,gensym("massesPos"),2,sortie);
+ }
+ else if (auxstring2 == 0)// get all masses forces
+ for (i=0; i<nb_mass; i++)
+ {
+ SETFLOAT(&sortie[0],mass[i]->out_forceX);
+ SETFLOAT(&sortie[1],mass[i]->out_forceY);
+ ToOutAnything(0,gensym("massesForces"),2,sortie);
+ }
+ else if (auxstring3 == 0)// get all links positions
+ for (i=0; i<nb_link; i++)
+ {
+ SETFLOAT(&sortie[0],link[i]->mass1->posX);
+ SETFLOAT(&sortie[1],link[i]->mass1->posY);
+ SETFLOAT(&sortie[2],link[i]->mass2->posX);
+ SETFLOAT(&sortie[3],link[i]->mass2->posY);
+ ToOutAnything(0,gensym("linksPos"),4,sortie);
+ }
+ else // get all masses speeds
+ for (i=0; i<nb_mass; i++)
+ {
+ SETFLOAT(&sortie[0],mass[i]->speedX);
+ SETFLOAT(&sortie[1],mass[i]->speedY);
+ ToOutAnything(0,gensym("massesSpeeds"),2,sortie);
+ }
+ }
+ else if (auxstring1 == 0) // get mass positions
+ {
+ if (auxarg == 0) // No
+ {
+ for (j = 1; j<argc; j++)
+ for (i=0;i<nb_mass;i++)
+ if (mass[i]->nbr==GetAInt(argv[j]))
+ {
+ SETFLOAT(&sortie[0],mass[i]->posX);
+ SETFLOAT(&sortie[1],mass[i]->posY);
+ ToOutAnything(0,gensym("massesPosNo"),2,sortie);
+ }
+ }
+ else //string
+ {
+ for (j = 1; j<argc; j++)
+ {
+ SETSYMBOL(&atom[1],GetASymbol(argv[j]));
+ atom_string(&atom[1], buffer2, Id_length);
+ for (i=0;i<nb_mass;i++)
+ {
+
+ aux = strcmp(buffer2,mass[i]->Id_string);
+ if (aux==0)
+ {
+ SETFLOAT(&sortie[0],mass[i]->posX);
+ SETFLOAT(&sortie[1],mass[i]->posY);
+ ToOutAnything(0,gensym("massesPosId"),2,sortie);
+ }
+ }
+ }
+ }
+ }
+ else if (auxstring2 == 0) // get mass forces
+ {
+ if (auxarg == 0) // No
+ {
+ for (j = 1; j<argc; j++)
+ for (i=0;i<nb_mass;i++)
+ if (mass[i]->nbr==GetAInt(argv[j]))
+ {
+ SETFLOAT(&sortie[0],mass[i]->out_forceX);
+ SETFLOAT(&sortie[1],mass[i]->out_forceY);
+ ToOutAnything(0,gensym("massesForcesNo"),2,sortie);
+ }
+ }
+ else //string
+ {
+ for (j = 1; j<argc; j++)
+ {
+ SETSYMBOL(&atom[1],GetASymbol(argv[j]));
+ atom_string(&atom[1], buffer2, Id_length);
+ for (i=0;i<nb_mass;i++)
+ {
+
+ aux = strcmp(buffer2,mass[i]->Id_string);
+ if (aux==0)
+ {
+ SETFLOAT(&sortie[0],mass[i]->out_forceX);
+ SETFLOAT(&sortie[1],mass[i]->out_forceY);
+ ToOutAnything(0,gensym("massesForcesId"),2,sortie);
+ }
+ }
+ }
+ }
+ }
+ else if (auxstring3 == 0) // get links positions
+ {
+ if (auxarg == 0) // No
+ {
+ for (j = 1; j<argc; j++)
+ for (i=0;i<nb_link;i++)
+ if (link[i]->nbr==GetAInt(argv[j]))
+ {
+ SETFLOAT(&sortie[0],link[i]->mass1->posX);
+ SETFLOAT(&sortie[1],link[i]->mass1->posY);
+ SETFLOAT(&sortie[2],link[i]->mass2->posX);
+ SETFLOAT(&sortie[3],link[i]->mass2->posY);
+ ToOutAnything(0,gensym("linksPosNo"),4,sortie);
+ }
+ }
+ else //string
+ {
+ for (j = 1; j<argc; j++)
+ {
+ SETSYMBOL(&atom[1],GetASymbol(argv[j]));
+ atom_string(&atom[1], buffer2, Id_length);
+ for (i=0;i<nb_link;i++)
+ {
+
+ aux = strcmp(buffer2,link[i]->Id_string);
+ if (aux==0)
+ {
+ SETFLOAT(&sortie[0],link[i]->mass1->posX);
+ SETFLOAT(&sortie[1],link[i]->mass1->posY);
+ SETFLOAT(&sortie[2],link[i]->mass2->posX);
+ SETFLOAT(&sortie[3],link[i]->mass2->posY);
+ ToOutAnything(0,gensym("linksPosId"),4,sortie);
+ }
+ }
+ }
+ }
+ }
+ else // get mass speeds
+ {
+ if (auxarg == 0) // No
+ {
+ for (j = 1; j<argc; j++)
+ for (i=0;i<nb_mass;i++)
+ if (mass[i]->nbr==GetAInt(argv[j]))
+ {
+ SETFLOAT(&sortie[0],mass[i]->speedX);
+ SETFLOAT(&sortie[1],mass[i]->speedY);
+ ToOutAnything(0,gensym("massesSpeedsNo"),2,sortie);
+ }
+ }
+ else //string
+ {
+ for (j = 1; j<argc; j++)
+ {
+ SETSYMBOL(&atom[1],GetASymbol(argv[j]));
+ atom_string(&atom[1], buffer2, Id_length);
+ for (i=0;i<nb_mass;i++)
+ {
+
+ aux = strcmp(buffer2,mass[i]->Id_string);
+ if (aux==0)
+ {
+ SETFLOAT(&sortie[0],mass[i]->speedX);
+ SETFLOAT(&sortie[1],mass[i]->speedY);
+ ToOutAnything(0,gensym("massesSpeedsId"),2,sortie);
+ }
+ }
+ }
+ }
+ }
+
+
+ }
+
+ void m_mass_dumpl()
+ // List of masses positions on first outlet
+ {
+ t_atom sortie[2*nb_mass];
+ t_int i;
+
+ for (i=0; i<nb_mass; i++) {
+ SETFLOAT(&(sortie[2*i]),mass[i]->posX);
+ SETFLOAT(&(sortie[2*i+1]),mass[i]->posY);
+ }
+ ToOutAnything(0, gensym("massesPosL"), 2*nb_mass, sortie);
+ }
+
+ void m_force_dumpl()
+ // List of masses positions on first outlet
+ {
+ t_atom sortie[2*nb_mass];
+ t_int i;
+
+ for (i=0; i<nb_mass; i++) {
+ SETFLOAT(&(sortie[2*i]),mass[i]->out_forceX);
+ SETFLOAT(&(sortie[2*i+1]),mass[i]->out_forceY);
+ }
+ ToOutAnything(0, gensym("massesForcesL"), 2*nb_mass, sortie);
+ }
+
+ void m_link_dumpl()
+ // List of masses positions on first outlet
+ {
+ t_atom sortie[2*nb_link];
+ t_int i;
+
+ for (i=0; i<nb_link; i++) {
+ SETFLOAT(&(sortie[2*i]),link[i]->mass1->nbr);
+ SETFLOAT(&(sortie[2*i+1]),link[i]->mass2->nbr);
+ }
+ ToOutAnything(0, gensym("linksMassesL"), 2*nb_link, sortie);
+ }
+
+ void m_info_dumpl()
+ // List of masses positions on first outlet
+ {
+ t_atom sortie[7];
+ t_int i;
+
+ for (i=0; i<nb_mass; i++) {
+ SETFLOAT(&(sortie[0]),mass[i]->nbr);
+ SETSYMBOL(&(sortie[1]),mass[i]->Id);
+ SETFLOAT(&(sortie[2]),mass[i]->mobile);
+ SETFLOAT(&(sortie[3]),1/mass[i]->invM);
+ SETFLOAT(&(sortie[4]),mass[i]->posX);
+ SETFLOAT(&(sortie[5]),mass[i]->posY);
+ ToOutAnything(1, gensym("Mass"), 6, sortie);
+ }
+
+ for (i=0; i<nb_link; i++) {
+ SETFLOAT(&(sortie[0]),link[i]->nbr);
+ SETSYMBOL(&(sortie[1]),link[i]->Id);
+ SETFLOAT(&(sortie[2]),link[i]->mass1->nbr);
+ SETFLOAT(&(sortie[3]),link[i]->mass2->nbr);
+ SETFLOAT(&(sortie[4]),link[i]->K1);
+ SETFLOAT(&(sortie[5]),link[i]->D1);
+ SETFLOAT(&(sortie[6]),link[i]->D2);
+ ToOutAnything(1, gensym("Link"), 7, sortie);
+ }
+
+ }
+
+// -------------------------------------------------------------- GLOBAL VARIABLES
+
+ t_link * link[nb_max_link];
+ t_mass * mass[nb_max_mass];
+ t_float Xmin, Xmax, Ymin, Ymax;
+ int nb_link, nb_mass, id_mass, id_link;
+
+// -------------------------------------------------------------- SETUP
+
+private:
+
+ static void setup(t_classid c)
+ {
+ // --- set up meth(i=0; i<nb_link;i++)ods (class scope) ---
+
+ // register a bang method to the default inlet (0)
+ FLEXT_CADDBANG(c,0,m_bang);
+
+ // set up tagged methods for the default inlet (0)
+ // the underscore _ after CADDMETHOD indicates that a message tag is used
+ // no, variable list or anything and all single arguments are recognized automatically, ...
+ FLEXT_CADDMETHOD_(c,0,"reset",m_reset);
+ FLEXT_CADDMETHOD_(c,0,"forceX",m_forceX);
+ FLEXT_CADDMETHOD_(c,0,"forceY",m_forceY);
+ FLEXT_CADDMETHOD_(c,0,"posX",m_posX);
+ FLEXT_CADDMETHOD_(c,0,"Xmax",m_Xmax);
+ FLEXT_CADDMETHOD_(c,0,"Xmin",m_Xmin);
+ FLEXT_CADDMETHOD_(c,0,"Ymax",m_Ymax);
+ FLEXT_CADDMETHOD_(c,0,"Ymin",m_Ymin);
+ FLEXT_CADDMETHOD_(c,0,"posY",m_posY);
+ FLEXT_CADDMETHOD_(c,0,"setK",m_setK);
+ FLEXT_CADDMETHOD_(c,0,"setD",m_setD);
+ FLEXT_CADDMETHOD_(c,0,"setD2",m_setD2);
+ FLEXT_CADDMETHOD_(c,0,"mass",m_mass);
+ FLEXT_CADDMETHOD_(c,0,"link",m_link);
+ FLEXT_CADDMETHOD_(c,0,"iLink",m_ilink);
+ FLEXT_CADDMETHOD_(c,0,"get",m_get);
+ FLEXT_CADDMETHOD_(c,0,"deleteLink",m_delete_link);
+ FLEXT_CADDMETHOD_(c,0,"deleteMass",m_delete_mass);
+ FLEXT_CADDMETHOD_(c,0,"massesPosL",m_mass_dumpl);
+ FLEXT_CADDMETHOD_(c,0,"infosL",m_info_dumpl);
+ FLEXT_CADDMETHOD_(c,0,"linksMassesL",m_link_dumpl);
+ FLEXT_CADDMETHOD_(c,0,"massesForcesL",m_force_dumpl);
+ FLEXT_CADDMETHOD_(c,0,"setMobile",m_set_mobile);
+ FLEXT_CADDMETHOD_(c,0,"setFixed",m_set_fixe);
+ }
+
+ // for every registered method a callback has to be declared
+ FLEXT_CALLBACK(m_bang)
+ FLEXT_CALLBACK(m_mass_dumpl)
+ FLEXT_CALLBACK(m_force_dumpl)
+ FLEXT_CALLBACK(m_link_dumpl)
+ FLEXT_CALLBACK(m_info_dumpl)
+ FLEXT_CALLBACK(m_reset)
+ FLEXT_CALLBACK_V(m_mass)
+ FLEXT_CALLBACK_V(m_link)
+ FLEXT_CALLBACK_V(m_ilink)
+ FLEXT_CALLBACK_V(m_set_mobile)
+ FLEXT_CALLBACK_V(m_set_fixe)
+ FLEXT_CALLBACK_V(m_Xmax)
+ FLEXT_CALLBACK_V(m_Xmin)
+ FLEXT_CALLBACK_V(m_Ymax)
+ FLEXT_CALLBACK_V(m_Ymin)
+ FLEXT_CALLBACK_V(m_setK)
+ FLEXT_CALLBACK_V(m_setD)
+ FLEXT_CALLBACK_V(m_setD2)
+ FLEXT_CALLBACK_V(m_forceX)
+ FLEXT_CALLBACK_V(m_forceY)
+ FLEXT_CALLBACK_V(m_posX)
+ FLEXT_CALLBACK_V(m_posY)
+ FLEXT_CALLBACK_V(m_get)
+ FLEXT_CALLBACK_V(m_delete_link)
+ FLEXT_CALLBACK_V(m_delete_mass)
+};
+
+// instantiate the class (constructor has a variable argument list)
+FLEXT_NEW_V("msd2D",msd2D)
+
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-06 04:05:17 +0000