MSD version 0.05

svn path=/trunk/externals/nusmuk/; revision=2846

10 files changed, 768 insertions, 647 deletions

diff --git a/msd/03_msdwave.pd b/msd/03_msdwave.pd
index e69ae1b..4ac3ab6 100644
--- a/msd/03_msdwave.pd
+++ b/msd/03_msdwave.pd
@@ -12,22 +12,22 @@
 #N canvas 721 124 605 590 massrender 0;
 #X obj 127 22 inlet;
 #X obj 48 203 translateXYZ;
-#X obj 64 114 gemhead;
 #X obj 48 177 separator;
 #X obj 48 153 any;
 #X obj 127 136 t b f;
 #X obj 127 57 unpack f f f;
 #X obj 48 283 cuboid 0.065 0.065 0.07;
-#X connect 0 0 6 0;
-#X connect 1 0 7 0;
-#X connect 2 0 4 1;
-#X connect 3 0 1 0;
+#X obj 64 114 gemhead 45;
+#X connect 0 0 5 0;
+#X connect 1 0 6 0;
+#X connect 2 0 1 0;
+#X connect 3 0 2 0;
 #X connect 4 0 3 0;
+#X connect 4 1 1 1;
 #X connect 5 0 4 0;
-#X connect 5 1 1 1;
-#X connect 6 0 5 0;
-#X connect 6 1 1 2;
-#X connect 6 2 7 3;
+#X connect 5 1 1 2;
+#X connect 5 2 6 3;
+#X connect 7 0 3 1;
 #X restore 265 625 pd massrender;
 #X msg 203 83 symbol reset;
 #X text 793 205 Select view;
@@ -67,7 +67,7 @@
 #X msg 63 718 get massesPos \$1;
 #X obj 602 334 rotateXYZ;
 #X obj 651 450 vsl 15 128 0 4 0 0 empty empty empty 0 -8 0 8 -262131
--1 -1 0 1;
+-1 -1 1400 1;
 #X obj 670 450 vsl 15 128 0 4 0 0 empty empty empty 0 -8 0 8 -262131
 -1 -1 0 1;
 #X obj 689 450 vsl 15 128 0 4 0 0 empty empty empty 0 -8 0 8 -262131
@@ -104,7 +104,7 @@ z is asked to the 1D model.;
 test synchronization between msd objects;
 #X obj 33 537 unpack f f f;
 #X obj 443 546 unpack f f;
-#X obj 173 598 f;
+#X obj 173 597 f;
 #X obj 33 574 t b f;
 #X connect 0 0 12 0;
 #X connect 2 0 1 0;
diff --git a/msd/help-msd.pd b/msd/help-msd.pd
index 157d95f..22d551f 100644
--- a/msd/help-msd.pd
+++ b/msd/help-msd.pd
@@ -16,7 +16,6 @@
 #X obj 61 403 cnv 15 610 210 empty empty DYNAMIC_SETTING 20 12 0 14
 -262131 -66577 0;
 #X text 350 467 \$2 : New value;
-#X text 348 503 \$1 : Id (symbol);
 #X text 348 521 \$2 : New value;
 #X msg 87 429 posX \$1 \$2;
 #X text 350 431 Set position of mass(es);
@@ -58,18 +57,19 @@ their;
 #X text 345 594 \$1 : Creation No of mass;
 #X text 334 271 \$4 : initial position;
 #X text 350 449 \$1 : Id (symbol) or No;
+#X text 348 503 \$1 : Id (symbol) or No;
 #X connect 2 0 0 0;
 #X connect 9 0 0 0;
-#X connect 15 0 0 0;
-#X connect 18 0 0 0;
+#X connect 14 0 0 0;
+#X connect 17 0 0 0;
+#X connect 19 0 0 0;
 #X connect 20 0 0 0;
-#X connect 21 0 0 0;
-#X connect 24 0 0 0;
+#X connect 23 0 0 0;
+#X connect 27 0 0 0;
 #X connect 28 0 0 0;
-#X connect 29 0 0 0;
-#X connect 32 0 0 0;
-#X connect 34 0 0 0;
-#X connect 43 0 0 0;
+#X connect 31 0 0 0;
+#X connect 33 0 0 0;
+#X connect 42 0 0 0;
 #X restore 282 323 pd masses;
 #N canvas 222 83 808 841 links 0;
 #X obj 33 821 msd;
diff --git a/msd/main.cpp b/msd/main.cpp
index f74ba3d..28b3276 100755
--- a/msd/main.cpp
+++ b/msd/main.cpp
@@ -30,7 +30,7 @@
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
- Version 0.04 -- 26.04.2005
+ Version 0.05 -- 28.04.2005
 */
 
 // include flext header
@@ -38,7 +38,7 @@
 #include <math.h>
 
 // define constants
-#define MSD_VERSION  0.04
+#define MSD_VERSION  0.05
 #define nb_max_link   4000
 #define nb_max_mass   4000
 #define Id_length   20
@@ -112,13 +112,14 @@ protected:
 	void m_reset() 
 	{ 
 		t_int i;
-//		t_atom sortie;
+		t_mass **mi;
+		t_link **li;
 
-		for (i=0; i<nb_mass; i++)	{
-			delete mass[i];
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			delete (*mi);
 			}
-		for (i=0; i<nb_link; i++)	{
-			delete link[i];
+		for (i=0, li=link; i<nb_link; li++,i++)	{
+			delete (*li);
 			}
 		ToOutAnything(1,S_Reset,0,NULL);
 		nb_link = 0;
@@ -134,45 +135,43 @@ protected:
 	{
 		t_float F=0,Fx=0,distance,vitesse, X_new;
 		t_int i;
-		struct _mass mass_1, mass_2;
+		t_mass **mi;
+		t_link **li;
 
 
-
-		for (i=0; i<nb_link; i++)	{
+		for (i=0, li=link; i<nb_link; li++,i++)	{
 		// compute link forces
-			distance = link[i]->mass1->posX-link[i]->mass2->posX;		// L[n] = x1 - x2
+			distance = (*li)->mass1->posX-(*li)->mass2->posX;		// L[n] = x1 - x2
 			if (distance < 0)
 				distance = -distance;					// |L[n]|
-			if (distance < link[i]->long_min || distance > link[i]->long_max)	
+			if (distance < (*li)->long_min || distance > (*li)->long_max)	
 				Fx = 0;
 			else 	{								// Lmin < L < Lmax
-				F  = link[i]->K1 * (distance - link[i]->longueur) ;		// F[n] = k1 (L[n] - L[0])
-				F += link[i]->D1 * (distance - link[i]->distance_old) ;		// F[n] = F[n] + D1 (L[n] - L[n-1])
+				F  = (*li)->K1 * (distance - (*li)->longueur) ;		// F[n] = k1 (L[n] - L[0])
+				F += (*li)->D1 * (distance - (*li)->distance_old) ;		// F[n] = F[n] + D1 (L[n] - L[n-1])
 				if (distance != 0) 	
-					Fx = F * (link[i]->mass1->posX - link[i]->mass2->posX)/distance; // Fx = F * Lx[n]/L[n]
+					Fx = F * ((*li)->mass1->posX - (*li)->mass2->posX)/distance; // Fx = F * Lx[n]/L[n]
 			}
-				link[i]->mass1->forceX -= Fx;					// Fx1[n] = -Fx
-				link[i]->mass1->forceX -= link[i]->D2*link[i]->mass1->speedX; 	// Fx1[n] = Fx1[n] - D2 * vx1[n-1]
-				link[i]->mass2->forceX += Fx;					// Fx2[n] = Fx
-				link[i]->mass2->forceX -= link[i]->D2*link[i]->mass2->speedX; 	// Fx2[n] = Fx2[n] - D2 * vx2[n-1]
-				link[i]->distance_old = distance;				// L[n-1] = L[n]			
+				(*li)->mass1->forceX -= Fx;					// Fx1[n] = -Fx
+				(*li)->mass1->forceX -= (*li)->D2*(*li)->mass1->speedX; 	// Fx1[n] = Fx1[n] - D2 * vx1[n-1]
+				(*li)->mass2->forceX += Fx;					// Fx2[n] = Fx
+				(*li)->mass2->forceX -= (*li)->D2*(*li)->mass2->speedX; 	// Fx2[n] = Fx2[n] - D2 * vx2[n-1]
+				(*li)->distance_old = distance;				// L[n-1] = L[n]			
 		}
 
-
-
-		for (i=0; i<nb_mass; i++)
+		for (i=0, mi=mass; i<nb_mass; mi++, 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; // x[n] =Fx[n]/M+2x[n]-x[n-1] 
-				mass[i]->posX2 = mass[i]->posX;				// x[n-2] = x[n-1]
-				mass[i]->posX = max(min(X_new,Xmax),Xmin);		// x[n-1] = x[n]	
-				mass[i]->speedX = mass[i]->posX - mass[i]->posX2;	// vx[n] = x[n] - x[n-1]
+			if ((*mi)->mobile == 1)  		{
+				X_new = (*mi)->forceX * (*mi)->invM + 2*(*mi)->posX - (*mi)->posX2; // x[n] =Fx[n]/M+2x[n]-x[n-1] 
+				(*mi)->posX2 = (*mi)->posX;				// x[n-2] = x[n-1]
+				(*mi)->posX = max(min(X_new,Xmax),Xmin);		// x[n-1] = x[n]	
+				(*mi)->speedX = (*mi)->posX - (*mi)->posX2;	// vx[n] = x[n] - x[n-1]
 				}
 
-		for (i=0; i<nb_mass; i++)	{
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
 		// clear forces
-			mass[i]->out_forceX = mass[i]->forceX;
-			mass[i]->forceX = 0;						// Fx[n] = 0
+			(*mi)->out_forceX = (*mi)->forceX;
+			(*mi)->forceX = 0;						// Fx[n] = 0
 		}
 	}
 
@@ -213,43 +212,54 @@ protected:
 
 	void m_forceX(int argc,t_atom *argv) 
 	{
-	// add a force to mass(es) named Id
+	// add a force to mass(es) named Id or No
 		t_int i;
-		const t_symbol *sym = GetSymbol(argv[0]);
+		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("forceX : Idmass value");
 
-		for (i=0; i<nb_mass;i++)
-		{
-			if (sym == mass[i]->Id)
-				mass[i]->forceX += GetFloat(argv[1]);
-		}
+		if (sym ==0)	
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (GetInt(argv[0]) == (*mi)->nbr)	{
+					(*mi)->forceX = GetFloat(argv[1]);
+					break;
+				}
+			}
+		else
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (sym == (*mi)->Id)
+					(*mi)->forceX = GetFloat(argv[1]);
+			}
 	}
 
 	void m_posX(int argc,t_atom *argv) 
 	{
-	// displace mass(es) named Id to a certain position
+	// displace mass(es) named Id or No to a certain position
 		t_int i;
 		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("posX : Id/Nomass value");
 
 		if (GetFloat(argv[1]) < Xmax && GetFloat(argv[1]) > Xmin)
 			if (sym ==0)	
-				for (i=0; i<nb_mass;i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					if (GetInt(argv[0]) == mass[i]->nbr)	{
-						mass[i]->posX = GetFloat(argv[1]);
+					if (GetInt(argv[0]) == (*mi)->nbr)	{
+						(*mi)->posX = GetFloat(argv[1]);
 						break;
 					}
 				}
 			else
-				for (i=0; i<nb_mass;i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					if (sym == mass[i]->Id)
-						mass[i]->posX = GetFloat(argv[1]);
+					if (sym == (*mi)->Id)
+						(*mi)->posX = GetFloat(argv[1]);
 				}
 	}
 
@@ -257,15 +267,16 @@ protected:
 	{
 	// set mass No to mobile
 		t_int i,aux;
+		t_mass **mi;
 	
 		if (argc != 1)
 			error("setMobile : Idmass");
 	
 		aux = GetInt(argv[0]);	
-		for (i=0; i<nb_mass;i++)
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)
 			{
-				if (mass[i]->nbr == aux)
-					mass[i]->mobile = 1;
+				if ((*mi)->nbr == aux)
+					(*mi)->mobile = 1;
 			}
 	
 	}
@@ -274,15 +285,16 @@ protected:
 	{
 	// set mass No to fixed
 		t_int i,aux;
+		t_mass **mi;
 		
 		if (argc != 1)
 			error("setFixed : Idmass");
 
 		aux = GetInt(argv[0]);	
-		for (i=0; i<nb_mass;i++)
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)
 			{
-				if (mass[i]->nbr == aux)
-					mass[i]->mobile = 0;
+				if ((*mi)->nbr == aux)
+					(*mi)->mobile = 0;
 			}
 	
 	}
@@ -293,14 +305,16 @@ protected:
 		t_int i,nb_link_delete=0;
 		t_atom sortie[5];
 		NEWARR(t_atom,aux,nb_link);
-	
+		t_mass **mi;
+		t_link **li;
+
 		if (argc != 1)
 			error("deleteMass : Nomass");
 
 		// Delete all associated links 
-		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);
+		for (i=0, li=link; i<nb_link; li++,i++)	{
+			if ((*li)->mass1->nbr == GetAInt(argv[0]) || (*li)->mass2->nbr == GetAInt(argv[0]))	{
+				SetFloat((aux[nb_link_delete]),(*li)->nbr);
 				nb_link_delete++;
 			}
 		}
@@ -309,15 +323,15 @@ protected:
 			m_delete_link(1,&aux[i]);
 	
 		// Delete mass
-		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);
-				delete mass[i];
-				mass[i] = mass[nb_mass-1]; 	// copy last mass instead 
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			if ((*mi)->nbr == GetAInt(argv[0]))	{
+				SetFloat((sortie[0]),(*mi)->nbr);
+				SetSymbol((sortie[1]),(*mi)->Id);
+				SetFloat((sortie[2]),(*mi)->mobile);
+				SetFloat((sortie[3]),1/(*mi)->invM);
+				SetFloat((sortie[4]),(*mi)->posX);
+				delete (*mi);
+				(*mi) = mass[nb_mass-1]; 	// copy last mass instead 
 				nb_mass--;
 				ToOutAnything(1,S_Mass_deleted,5,sortie);
 				break;
@@ -354,18 +368,20 @@ protected:
 		t_int i;
         	t_mass *mass1 = NULL;
         	t_mass *mass2 = NULL;
-        	
+ 		t_mass **mi;
+ 
+      	
         	if (argc < 6 || argc > 8)
         	    error("link : Id Nomass1 Nomass2 K D1 D2 (Lmin Lmax)");
 			
         	// check for existence of link masses:
-        	for (i=0; i<nb_mass;i++)
-				if (mass[i]->nbr==GetInt(argv[1]))	// pointer to mass1
+        	for (i=0, mi=mass; i<nb_mass; mi++, i++)
+				if ((*mi)->nbr==GetInt(argv[1]))	// pointer to mass1
 					// we found mass1
-        	        mass1 = mass[i];
-				else if (mass[i]->nbr==GetInt(argv[2]))	// pointer to mass2
+        	        		mass1 = (*mi);
+				else if ((*mi)->nbr==GetInt(argv[2]))	// pointer to mass2
 					// ... and mass2
-        	        mass2 = mass[i];
+        	        		mass2 = (*mi);
 
         	if (mass1 and mass2)
         	{
@@ -422,6 +438,7 @@ protected:
 		NEWARR(t_int,imass1,nb_mass);
 		NEWARR(t_int,imass2,nb_mass);
 		t_symbol *Id1, *Id2;
+		t_mass **mi;
 
 		if (argc < 6 || argc > 8)
 			error("ilink : Id Idmass1 Idmass2 K D1 D2 (Lmin Lmax)");
@@ -430,12 +447,12 @@ protected:
 		Id2 = GetSymbol(argv[2]);
 		ToOutAnything(1,S_iLink,0,aux);
 
-		for (i=0;i<nb_mass;i++)	{
-			if (Id1 == mass[i]->Id)	{
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			if (Id1 == (*mi)->Id)	{
 				imass1[nbmass1]=i;
 				nbmass1++;
 			}
-			if (Id2 == mass[i]->Id)	{
+			if (Id2 == (*mi)->Id)	{
 				imass2[nbmass2]=i;
 				nbmass2++;
 			}
@@ -471,14 +488,15 @@ protected:
 	// set rigidity of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setK : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link; li++,i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->K1 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->K1 = GetFloat(argv[1]);
 		}
 	}
 
@@ -487,14 +505,15 @@ protected:
 	// set damping of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setD : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link; li++,i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->D1 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->D1 = GetFloat(argv[1]);
 		}
 	}
 
@@ -503,14 +522,15 @@ protected:
 	// set damping of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setD2 : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link; li++,i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->D2 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->D2 = GetFloat(argv[1]);
 		}
 	}
 
@@ -519,21 +539,22 @@ protected:
 	// Delete link
 		t_int i;
 		t_atom sortie[7];
+		t_link **li;
 
 		if (argc != 1)
 			error("deleteLink : NoLink");
 
-		for (i=0; i<nb_link;i++)
-			if (link[i]->nbr == GetInt(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];	// copy last link instead
+		for (i=0, li=link; i<nb_link; li++,i++)
+			if ((*li)->nbr == GetInt(argv[0]))	{
+				SetFloat((sortie[0]),(*li)->nbr);
+				SetSymbol((sortie[1]),(*li)->Id);
+				SetFloat((sortie[2]),(*li)->mass1->nbr);
+				SetFloat((sortie[3]),(*li)->mass2->nbr);
+				SetFloat((sortie[4]),(*li)->K1);
+				SetFloat((sortie[5]),(*li)->D1);
+				SetFloat((sortie[6]),(*li)->D2);
+				delete (*li);
+				(*li)=link[nb_link-1];	// copy last link instead
 				nb_link--;
 				ToOutAnything(1,S_Link_deleted,7,sortie);
 				break;
@@ -550,37 +571,40 @@ protected:
 		t_int i,j;
 		t_symbol *auxarg,*auxarg2, *auxtype;
 		t_atom sortie[3];
+		t_mass **mi;
+		t_link **li;
+
 		auxtype = GetSymbol(argv[0]);
 		auxarg = GetASymbol(argv[1]);			//auxarg : & symbol, 0 else
 		if (argc == 1)
 		{
 			if (auxtype == S_massesPos)		// get all masses positions
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{	
-					SetFloat(sortie[0],mass[i]->nbr);	
-					SetFloat(sortie[1],mass[i]->posX);
+					SetFloat(sortie[0],(*mi)->nbr);	
+					SetFloat(sortie[1],(*mi)->posX);
 					ToOutAnything(0,S_massesPos,2,sortie);
 				}
 			else if (auxtype == S_massesForces)	// get all masses forces
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->out_forceX);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->out_forceX);
 					ToOutAnything(0,S_massesForces,2,sortie);
 				}
 			else if (auxtype == S_linksPos)		// get all links positions
-				for (i=0; i<nb_link; i++)
+				for (i=0, li=link; i<nb_link; li++,i++)
 				{
-					SetFloat(sortie[0],link[i]->nbr);
-					SetFloat(sortie[1],link[i]->mass1->posX);
-					SetFloat(sortie[2],link[i]->mass2->posX);
+					SetFloat(sortie[0],(*li)->nbr);
+					SetFloat(sortie[1],(*li)->mass1->posX);
+					SetFloat(sortie[2],(*li)->mass2->posX);
 					ToOutAnything(0,S_linksPos,3,sortie);
 				}
 			else 					// get all masses speeds
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->speedX);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->speedX);
 					ToOutAnything(0,S_massesSpeeds,2,sortie);
 				}
 		}
@@ -589,11 +613,11 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->posX);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->posX);
 							ToOutAnything(0,S_massesPosNo,2,sortie);
 						}
 			}
@@ -602,12 +626,12 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->posX);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->posX);
 							ToOutAnything(0,S_massesPosId,2,sortie);
 						}
 					}
@@ -619,11 +643,11 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->out_forceX);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->out_forceX);
 							ToOutAnything(0,S_massesForcesNo,2,sortie);
 						}
 			}
@@ -632,12 +656,12 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->out_forceX);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->out_forceX);
 							ToOutAnything(0,S_massesForcesId,2,sortie);
 						}	
 					}
@@ -649,12 +673,12 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_link;i++)
-						if (link[i]->nbr==GetInt(argv[j]))
+					for (i=0, li=link; i<nb_link; li++,i++)
+						if ((*li)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],link[i]->nbr);
-							SetFloat(sortie[1],link[i]->mass1->posX);
-							SetFloat(sortie[2],link[i]->mass2->posX);
+							SetFloat(sortie[0],(*li)->nbr);
+							SetFloat(sortie[1],(*li)->mass1->posX);
+							SetFloat(sortie[2],(*li)->mass2->posX);
 							ToOutAnything(0,S_linksPosNo,3,sortie);
 						}
 			}
@@ -663,13 +687,13 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_link;i++)	
+					for (i=0, li=link; i<nb_link; li++,i++)	
 					{
-						if (auxarg2==link[i]->Id)
+						if (auxarg2==(*li)->Id)
 						{
-							SetSymbol(sortie[0],link[i]->Id);
-							SetFloat(sortie[1],link[i]->mass1->posX);
-							SetFloat(sortie[2],link[i]->mass2->posX);
+							SetSymbol(sortie[0],(*li)->Id);
+							SetFloat(sortie[1],(*li)->mass1->posX);
+							SetFloat(sortie[2],(*li)->mass2->posX);
 							ToOutAnything(0,S_linksPosId,3,sortie);
 						}
 					}
@@ -681,11 +705,11 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->speedX);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->speedX);
 							ToOutAnything(0,S_massesSpeedsNo,2,sortie);
 						}
 			}
@@ -694,12 +718,12 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->speedX);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->speedX);
 							ToOutAnything(0,S_massesSpeedsId,2,sortie);
 						}
 					}
@@ -715,9 +739,10 @@ protected:
 	{	
 		NEWARR(t_atom,sortie,nb_mass);
 		t_int i;
+		t_mass **mi;
 	
-		for (i=0; i<nb_mass; i++)	{
-			SetFloat((sortie[i]),mass[i]->posX);
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			SetFloat((sortie[i]),(*mi)->posX);
 		}
 		ToOutAnything(0, S_massesPosL, nb_mass, sortie);
 		DELARR(sortie);
@@ -728,9 +753,10 @@ protected:
 	{	
 		NEWARR(t_atom,sortie,nb_mass);
 		t_int i;
+		t_mass **mi;
 	
-		for (i=0; i<nb_mass; i++)	{
-			SetFloat((sortie[i]),mass[i]->out_forceX);
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			SetFloat((sortie[i]),(*mi)->out_forceX);
 		}
 		ToOutAnything(0, S_massesForcesL, nb_mass, sortie);
 		DELARR(sortie);
@@ -741,24 +767,26 @@ protected:
 	{	
 		t_atom sortie[7];
 		t_int i;
+		t_mass **mi;
+		t_link **li;
 	
-		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);
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			SetFloat((sortie[0]),(*mi)->nbr);
+			SetSymbol((sortie[1]),(*mi)->Id);
+			SetFloat((sortie[2]),(*mi)->mobile);
+			SetFloat((sortie[3]),1/(*mi)->invM);
+			SetFloat((sortie[4]),(*mi)->posX);
 		ToOutAnything(1, S_Mass, 5, 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);
+		for (i=0, li=link; i<nb_link; li++,i++)	{
+			SetFloat((sortie[0]),(*li)->nbr);
+			SetSymbol((sortie[1]),(*li)->Id);
+			SetFloat((sortie[2]),(*li)->mass1->nbr);
+			SetFloat((sortie[3]),(*li)->mass2->nbr);
+			SetFloat((sortie[4]),(*li)->K1);
+			SetFloat((sortie[5]),(*li)->D1);
+			SetFloat((sortie[6]),(*li)->D2);
 		ToOutAnything(1, S_Link, 7, sortie);
 		}
 
diff --git a/msd2D/help-msd2D.pd b/msd2D/help-msd2D.pd
index 40623a6..67071b9 100644
--- a/msd2D/help-msd2D.pd
+++ b/msd2D/help-msd2D.pd
@@ -15,7 +15,6 @@
 #X obj 61 403 cnv 15 610 210 empty empty DYNAMIC_SETTING 20 12 0 14
 -262131 -66577 0;
 #X text 350 467 \$2 : New value;
-#X text 348 503 \$1 : Id (symbol);
 #X text 348 521 \$2 : New value;
 #X msg 87 429 posX \$1 \$2;
 #X text 350 431 Set position of mass(es);
@@ -60,18 +59,19 @@ their;
 #X msg 84 538 Xmin \$1 \, Xmax \$1 \, Ymin \$1 \, Ymax \$1;
 #X text 334 271 \$4 \, \$5 : initial position;
 #X text 350 449 \$1 : Id (symbol) or No;
-#X connect 1 0 45 0;
-#X connect 8 0 45 0;
-#X connect 14 0 45 0;
-#X connect 17 0 45 0;
-#X connect 19 0 45 0;
-#X connect 20 0 45 0;
-#X connect 23 0 45 0;
-#X connect 27 0 45 0;
-#X connect 30 0 45 0;
-#X connect 39 0 45 0;
-#X connect 42 0 45 0;
-#X connect 47 0 45 0;
+#X text 348 503 \$1 : Id (symbol) or No;
+#X connect 1 0 44 0;
+#X connect 8 0 44 0;
+#X connect 13 0 44 0;
+#X connect 16 0 44 0;
+#X connect 18 0 44 0;
+#X connect 19 0 44 0;
+#X connect 22 0 44 0;
+#X connect 26 0 44 0;
+#X connect 29 0 44 0;
+#X connect 38 0 44 0;
+#X connect 41 0 44 0;
+#X connect 46 0 44 0;
 #X restore 221 312 pd masses;
 #X text 75 312 HELP on masses --->;
 #X text 74 343 HELP on links --->;
diff --git a/msd2D/main.cpp b/msd2D/main.cpp
index ccefdc6..436703b 100755
--- a/msd2D/main.cpp
+++ b/msd2D/main.cpp
@@ -30,7 +30,7 @@
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
- Version 0.04 -- 26.04.2005
+ Version 0.05 -- 28.04.2005
 */
 
 // include flext header
@@ -38,7 +38,7 @@
 #include <math.h>
 
 // define constants
-#define MSD2D_VERSION 0.04
+#define MSD2D_VERSION 0.05
 #define nb_max_link   4000
 #define nb_max_mass   4000
 #define Id_length   20
@@ -115,13 +115,14 @@ protected:
 	void m_reset() 
 	{ 
 		t_int i;
-//		t_atom sortie;
+		t_mass **mi;
+		t_link **li;
 
-		for (i=0; i<nb_mass; i++)	{
-			delete mass[i];
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			delete (*mi);
 			}
-		for (i=0; i<nb_link; i++)	{
-			delete link[i];
+		for (i=0, li=link; i<nb_link; li++, i++)	{
+			delete (*li);
 			}
 		ToOutAnything(1,S_Reset,0,NULL);
 		nb_link = 0;
@@ -137,54 +138,55 @@ protected:
 	{
 		t_float F=0,Fx=0,Fy=0,distance,vitesse, X_new, Y_new;
 		t_int i;
-		struct _mass mass_1, mass_2;
+		t_mass **mi;
+		t_link **li;
 	
-		for (i=0; i<nb_link; i++)	{
+		for (i=0, li=link; i<nb_link; li++, 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));		// L[n] = sqrt( (x1-x2)² +(y1-y2)²)
-			if (distance < link[i]->long_min || distance > link[i]->long_max)	{	
+			distance = sqrt(pow((*li)->mass1->posX-(*li)->mass2->posX,2) + 
+				pow((*li)->mass1->posY-(*li)->mass2->posY,2));		// L[n] = sqrt( (x1-x2)² +(y1-y2)²)
+			if (distance < (*li)->long_min || distance > (*li)->long_max)	{	
 				Fx = 0;
 				Fy = 0;
 			}
 			else	{
-				F  = link[i]->K1 * (distance - link[i]->longueur) ;		// F[n] = k1 (L[n] - L[0])
-				F += link[i]->D1 * (distance - link[i]->distance_old) ;		// F[n] = F[n] + D1 (L[n] - L[n-1])
+				F  = (*li)->K1 * (distance - (*li)->longueur) ;		// F[n] = k1 (L[n] - L[0])
+				F += (*li)->D1 * (distance - (*li)->distance_old) ;		// F[n] = F[n] + D1 (L[n] - L[n-1])
 				if (distance != 0) 	{
-					Fx = F * (link[i]->mass1->posX - link[i]->mass2->posX)/distance; // Fx = F * Lx[n]/L[n]
-					Fy = F * (link[i]->mass1->posY - link[i]->mass2->posY)/distance; // Fy = F * Ly[n]/L[n]
+					Fx = F * ((*li)->mass1->posX - (*li)->mass2->posX)/distance; // Fx = F * Lx[n]/L[n]
+					Fy = F * ((*li)->mass1->posY - (*li)->mass2->posY)/distance; // Fy = F * Ly[n]/L[n]
 				}
 			}
-			link[i]->mass1->forceX -= Fx;					// Fx1[n] = -Fx
-			link[i]->mass1->forceX -= link[i]->D2*link[i]->mass1->speedX;	// Fx1[n] = Fx1[n] - D2 * vx1[n-1]
-			link[i]->mass2->forceX += Fx;					// Fx2[n] = Fx
-			link[i]->mass2->forceX -= link[i]->D2*link[i]->mass2->speedX;	// Fx2[n] = Fx2[n] - D2 * vx2[n-1]
-			link[i]->mass1->forceY -= Fy;					// Fy1[n] = -Fy
-			link[i]->mass1->forceY -= link[i]->D2*link[i]->mass1->speedY;	// Fy1[n] = Fy1[n] - D2 * vy1[n-1]
-			link[i]->mass2->forceY += Fy;					// Fy2[n] = Fy
-			link[i]->mass2->forceY -= link[i]->D2*link[i]->mass2->speedY;	// Fy1[n] = Fy1[n] - D2 * vy1[n-1]
-			link[i]->distance_old = distance;				// L[n-1] = L[n]
+			(*li)->mass1->forceX -= Fx;					// Fx1[n] = -Fx
+			(*li)->mass1->forceX -= (*li)->D2*(*li)->mass1->speedX;	// Fx1[n] = Fx1[n] - D2 * vx1[n-1]
+			(*li)->mass2->forceX += Fx;					// Fx2[n] = Fx
+			(*li)->mass2->forceX -= (*li)->D2*(*li)->mass2->speedX;	// Fx2[n] = Fx2[n] - D2 * vx2[n-1]
+			(*li)->mass1->forceY -= Fy;					// Fy1[n] = -Fy
+			(*li)->mass1->forceY -= (*li)->D2*(*li)->mass1->speedY;	// Fy1[n] = Fy1[n] - D2 * vy1[n-1]
+			(*li)->mass2->forceY += Fy;					// Fy2[n] = Fy
+			(*li)->mass2->forceY -= (*li)->D2*(*li)->mass2->speedY;	// Fy1[n] = Fy1[n] - D2 * vy1[n-1]
+			(*li)->distance_old = distance;				// L[n-1] = L[n]
 		}
 
-		for (i=0; i<nb_mass; i++)
+		for (i=0, mi=mass; i<nb_mass; mi++, 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; // x[n] =Fx[n]/M+2x[n]-x[n-1] 
-				mass[i]->posX2 = mass[i]->posX;				// x[n-2] = x[n-1]
-				mass[i]->posX = max(min(X_new,Xmax),Xmin);		// x[n-1] = x[n]
-				mass[i]->speedX = mass[i]->posX - mass[i]->posX2;	// vx[n] = x[n] - x[n-1]
-				Y_new = mass[i]->forceY * mass[i]->invM + 2*mass[i]->posY - mass[i]->posY2; // x[n] =Fx[n]/M+2x[n]-x[n-1]
-				mass[i]->posY2 = mass[i]->posY;				// x[n-2] = x[n-1]
-				mass[i]->posY = max(min(Y_new,Ymax),Ymin);		// x[n-1] = x[n]
-				mass[i]->speedY = mass[i]->posY - mass[i]->posY2;	// vx[n] = x[n] - x[n-1]
+			if ((*mi)->mobile == 1)  		{
+				X_new = (*mi)->forceX * (*mi)->invM + 2*(*mi)->posX - (*mi)->posX2; // x[n] =Fx[n]/M+2x[n]-x[n-1] 
+				(*mi)->posX2 = (*mi)->posX;				// x[n-2] = x[n-1]
+				(*mi)->posX = max(min(X_new,Xmax),Xmin);		// x[n-1] = x[n]
+				(*mi)->speedX = (*mi)->posX - (*mi)->posX2;	// vx[n] = x[n] - x[n-1]
+				Y_new = (*mi)->forceY * (*mi)->invM + 2*(*mi)->posY - (*mi)->posY2; // x[n] =Fx[n]/M+2x[n]-x[n-1]
+				(*mi)->posY2 = (*mi)->posY;				// x[n-2] = x[n-1]
+				(*mi)->posY = max(min(Y_new,Ymax),Ymin);		// x[n-1] = x[n]
+				(*mi)->speedY = (*mi)->posY - (*mi)->posY2;	// vx[n] = x[n] - x[n-1]
 				}
 
-		for (i=0; i<nb_mass; i++)	{
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
 		// clear forces
-			mass[i]->out_forceX = mass[i]->forceX;
-			mass[i]->forceX = 0;						// Fx[n] = 0
-			mass[i]->out_forceY = mass[i]->forceY;
-			mass[i]->forceY = 0;						// Fy[n] = 0
+			(*mi)->out_forceX = (*mi)->forceX;
+			(*mi)->forceX = 0;						// Fx[n] = 0
+			(*mi)->out_forceY = (*mi)->forceY;
+			(*mi)->forceY = 0;						// Fy[n] = 0
 		}
 	}
 
@@ -231,34 +233,54 @@ protected:
 
 	void m_forceX(int argc,t_atom *argv) 
 	{
-	// add a force to mass(es) named Id
+	// add a force to mass(es) named Id or No
 		t_int i;
-		const t_symbol *sym = GetSymbol(argv[0]);
+		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("forceX : Idmass value");
 
-		for (i=0; i<nb_mass;i++)
-		{
-			if (sym == mass[i]->Id)
-				mass[i]->forceX += GetFloat(argv[1]);
-		}
+		if (sym ==0)	
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (GetInt(argv[0]) == (*mi)->nbr)	{
+					(*mi)->forceX = GetFloat(argv[1]);
+					break;
+				}
+			}
+		else
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (sym == (*mi)->Id)
+					(*mi)->forceX = GetFloat(argv[1]);
+			}
 	}
 
 	void m_forceY(int argc,t_atom *argv) 
 	{
-	// add a force to mass(es) named Id
+	// add a force to mass(es) named Id or No
 		t_int i;
-		const t_symbol *sym = GetSymbol(argv[0]);
+		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
-			error("forceY : Idmass value");
+			error("forceX : Idmass value");
 
-		for (i=0; i<nb_mass;i++)
-		{
-			if (sym == mass[i]->Id)
-				mass[i]->forceY += GetFloat(argv[1]);
-		}
+		if (sym ==0)	
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (GetInt(argv[0]) == (*mi)->nbr)	{
+					(*mi)->forceY = GetFloat(argv[1]);
+					break;
+				}
+			}
+		else
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (sym == (*mi)->Id)
+					(*mi)->forceY = GetFloat(argv[1]);
+			}
 	}
 
 	void m_posX(int argc,t_atom *argv) 
@@ -266,24 +288,25 @@ protected:
 	// displace mass(es) named Id to a certain position
 		t_int i;
 		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("posX : Id/Nomass value");
 
 		if (GetFloat(argv[1]) < Xmax && GetFloat(argv[1]) > Xmin)
 			if (sym ==0)	
-				for (i=0; i<nb_mass;i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					if (GetInt(argv[0]) == mass[i]->nbr)	{
-						mass[i]->posX = GetFloat(argv[1]);
+					if (GetInt(argv[0]) == (*mi)->nbr)	{
+						(*mi)->posX = GetFloat(argv[1]);
 						break;
 					}
 				}
 			else
-				for (i=0; i<nb_mass;i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					if (sym == mass[i]->Id)
-						mass[i]->posX = GetFloat(argv[1]);
+					if (sym == (*mi)->Id)
+						(*mi)->posX = GetFloat(argv[1]);
 				}
 	}
 
@@ -292,24 +315,25 @@ protected:
 	// displace mass(es) named Id to a certain position
 		t_int i;
 		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("posY : Id/Nomass value");
 
 		if (GetFloat(argv[1]) < Ymax && GetFloat(argv[1]) > Ymin)
 			if (sym ==0)	
-				for (i=0; i<nb_mass;i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					if (GetInt(argv[0]) == mass[i]->nbr)	{
-						mass[i]->posY = GetFloat(argv[1]);
+					if (GetInt(argv[0]) == (*mi)->nbr)	{
+						(*mi)->posY = GetFloat(argv[1]);
 						break;
 					}
 				}
 			else
-				for (i=0; i<nb_mass;i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					if (sym == mass[i]->Id)
-						mass[i]->posY = GetFloat(argv[1]);
+					if (sym == (*mi)->Id)
+						(*mi)->posY = GetFloat(argv[1]);
 				}
 	}
 
@@ -317,15 +341,16 @@ protected:
 	{
 	// set mass No to mobile
 		t_int i,aux;
+		t_mass **mi;
 	
 		if (argc != 1)
 			error("setMobile : Idmass");
 		
 		aux = GetInt(argv[0]);	
-		for (i=0; i<nb_mass;i++)
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)
 			{
-				if (mass[i]->nbr == aux)
-					mass[i]->mobile = 1;
+				if ((*mi)->nbr == aux)
+					(*mi)->mobile = 1;
 			}
 	
 	}
@@ -334,15 +359,16 @@ protected:
 	{
 	// set mass No to fixed
 		t_int i,aux;
+		t_mass **mi;
 		
 		if (argc != 1)
 			error("setFixed : Idmass");
 		
 		aux = GetAInt(argv[0]);	
-		for (i=0; i<nb_mass;i++)
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)
 			{
-				if (mass[i]->nbr == aux)
-					mass[i]->mobile = 0;
+				if ((*mi)->nbr == aux)
+					(*mi)->mobile = 0;
 			}
 	
 	}
@@ -353,14 +379,16 @@ protected:
 		t_int i,nb_link_delete=0;
 		t_atom sortie[6];
 		NEWARR(t_atom,aux,nb_link);
+		t_mass **mi;
+		t_link **li;
 
 		if (argc != 1)
 			error("deleteMass : Nomass");
 	
 		// Delete associated links
-		for (i=0; i<nb_link;i++)	{
-			if (link[i]->mass1->nbr == GetInt(argv[0]) || link[i]->mass2->nbr == GetInt(argv[0]))	{
-				SetFloat((aux[nb_link_delete]),link[i]->nbr);
+		for (i=0, li=link; i<nb_link; li++, i++)	{
+			if ((*li)->mass1->nbr == GetInt(argv[0]) || (*li)->mass2->nbr == GetInt(argv[0]))	{
+				SetFloat((aux[nb_link_delete]),(*li)->nbr);
 				nb_link_delete++;
 			}
 		}
@@ -369,16 +397,16 @@ protected:
 			m_delete_link(1,&aux[i]);
 
 		// delete mass
-		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];
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			if ((*mi)->nbr == GetAInt(argv[0]))	{
+				SetFloat((sortie[0]),(*mi)->nbr);
+				SetSymbol((sortie[1]),(*mi)->Id);
+				SetFloat((sortie[2]),(*mi)->mobile);
+				SetFloat((sortie[3]),1/(*mi)->invM);
+				SetFloat((sortie[4]),(*mi)->posX);
+				SetFloat((sortie[5]),(*mi)->posY);
+				delete (*mi);
+				(*mi) = mass[nb_mass-1];
 				nb_mass--;
 				ToOutAnything(1,S_Mass_deleted,6,sortie);
 				break;
@@ -429,18 +457,19 @@ protected:
 		t_int i;
         	t_mass *mass1 = NULL;
         	t_mass *mass2 = NULL;
-        	
+ 		t_mass **mi;
+       	
         	if (argc < 6 || argc > 8)
         	    error("link : Id Nomass1 Nomass2 K D1 D2 (Lmin Lmax)");
 			
         	// check for existence of link masses:
-        	for (i=0; i<nb_mass;i++)
-				if (mass[i]->nbr==GetInt(argv[1]))	// pointer to mass1
+        	for (i=0, mi=mass; i<nb_mass; mi++, i++)
+				if ((*mi)->nbr==GetInt(argv[1]))	// pointer to mass1
 					// we found mass1
-        	        mass1 = mass[i];
-				else if (mass[i]->nbr==GetInt(argv[2]))	// pointer to mass2
+        	        mass1 = (*mi);
+				else if ((*mi)->nbr==GetInt(argv[2]))	// pointer to mass2
 					// ... and mass2
-        	        mass2 = mass[i];
+        	        mass2 = (*mi);
 
         	if (mass1 and mass2)
         	{
@@ -495,6 +524,7 @@ protected:
 		NEWARR(t_int,imass1,nb_mass);
 		NEWARR(t_int,imass2,nb_mass);
 		t_symbol *Id1, *Id2;
+		t_mass **mi;
 
 		if (argc < 6 || argc > 8)
 			error("ilink : Id Idmass1 Idmass2 K D1 D2 (Lmin Lmax)");
@@ -503,12 +533,12 @@ protected:
 		Id2 = GetSymbol(argv[2]);
 		ToOutAnything(1,S_iLink,0,aux);
 
-		for (i=0;i<nb_mass;i++)	{
-			if (Id1 == mass[i]->Id)	{
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			if (Id1 == (*mi)->Id)	{
 				imass1[nbmass1]=i;
 				nbmass1++;
 			}
-			if (Id2 == mass[i]->Id)	{
+			if (Id2 == (*mi)->Id)	{
 				imass2[nbmass2]=i;
 				nbmass2++;
 			}
@@ -543,14 +573,15 @@ protected:
 	// set rigidity of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setK : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link; li++, i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->K1 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->K1 = GetFloat(argv[1]);
 		}
 	}
 
@@ -559,14 +590,15 @@ protected:
 	// set damping of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setD : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link; li++, i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->D1 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->D1 = GetFloat(argv[1]);
 		}
 	}
 
@@ -575,14 +607,15 @@ protected:
 	// set damping of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setD2 : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link; li++, i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->D2 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->D2 = GetFloat(argv[1]);
 		}
 	}
 
@@ -591,21 +624,22 @@ protected:
 	// Delete link
 		t_int i;
 		t_atom sortie[7];
+		t_link **li;
 
 		if (argc != 1)
 			error("deleteLink : NoLink");
 
-		for (i=0; i<nb_link;i++)
-			if (link[i]->nbr == GetInt(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];	// copy last link instead
+		for (i=0, li=link; i<nb_link; li++, i++)
+			if ((*li)->nbr == GetInt(argv[0]))	{
+				SetFloat((sortie[0]),(*li)->nbr);
+				SetSymbol((sortie[1]),(*li)->Id);
+				SetFloat((sortie[2]),(*li)->mass1->nbr);
+				SetFloat((sortie[3]),(*li)->mass2->nbr);
+				SetFloat((sortie[4]),(*li)->K1);
+				SetFloat((sortie[5]),(*li)->D1);
+				SetFloat((sortie[6]),(*li)->D2);
+				delete (*li);
+				(*li)=link[nb_link-1];	// copy last link instead
 				nb_link--;
 				ToOutAnything(1,S_Link_deleted,7,sortie);
 				break;
@@ -623,41 +657,43 @@ protected:
 		t_atom sortie[5];
 		auxtype = GetSymbol(argv[0]);
 		auxarg = GetASymbol(argv[1]);		//auxarg : & symbol, 0 else
+		t_mass **mi;
+		t_link **li;
 
 		if (argc == 1)
 		{
 			if (auxtype == S_massesPos)		// get all masses positions
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->posX);
-					SetFloat(sortie[2],mass[i]->posY);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->posX);
+					SetFloat(sortie[2],(*mi)->posY);
 					ToOutAnything(0,S_massesPos,3,sortie);
 				}
 			else if (auxtype == S_massesForces)	// get all masses forces
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->out_forceX);
-					SetFloat(sortie[2],mass[i]->out_forceY);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->out_forceX);
+					SetFloat(sortie[2],(*mi)->out_forceY);
 					ToOutAnything(0,S_massesForces,3,sortie);
 				}
 			else if (auxtype == S_linksPos)		// get all links positions
-				for (i=0; i<nb_link; i++)
+				for (i=0, li=link; i<nb_link; li++, i++)
 				{
-					SetFloat(sortie[0],link[i]->nbr);
-					SetFloat(sortie[1],link[i]->mass1->posX);
-					SetFloat(sortie[2],link[i]->mass1->posY);
-					SetFloat(sortie[3],link[i]->mass2->posX);
-					SetFloat(sortie[4],link[i]->mass2->posY);
+					SetFloat(sortie[0],(*li)->nbr);
+					SetFloat(sortie[1],(*li)->mass1->posX);
+					SetFloat(sortie[2],(*li)->mass1->posY);
+					SetFloat(sortie[3],(*li)->mass2->posX);
+					SetFloat(sortie[4],(*li)->mass2->posY);
 					ToOutAnything(0,S_linksPos,5,sortie);
 				}
 			else 					// get all masses speeds
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass; mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->speedX);
-					SetFloat(sortie[2],mass[i]->speedY);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->speedX);
+					SetFloat(sortie[2],(*mi)->speedY);
 					ToOutAnything(0,S_massesSpeeds,3,sortie);
 				}
 		}
@@ -666,12 +702,12 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->posX);
-							SetFloat(sortie[2],mass[i]->posY);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->posX);
+							SetFloat(sortie[2],(*mi)->posY);
 							ToOutAnything(0,S_massesPosNo,3,sortie);
 						}
 			}
@@ -680,13 +716,13 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->posX);
-							SetFloat(sortie[2],mass[i]->posY);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->posX);
+							SetFloat(sortie[2],(*mi)->posY);
 							ToOutAnything(0,S_massesPosId,3,sortie);
 						}
 					}
@@ -698,12 +734,12 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->out_forceX);
-							SetFloat(sortie[2],mass[i]->out_forceY);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->out_forceX);
+							SetFloat(sortie[2],(*mi)->out_forceY);
 							ToOutAnything(0,S_massesForcesNo,3,sortie);
 						}
 			}
@@ -712,13 +748,13 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->out_forceX);
-							SetFloat(sortie[2],mass[i]->out_forceY);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->out_forceX);
+							SetFloat(sortie[2],(*mi)->out_forceY);
 							ToOutAnything(0,S_massesForcesId,3,sortie);
 						}
 					}
@@ -730,14 +766,14 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_link;i++)
-						if (link[i]->nbr==GetInt(argv[j]))
+					for (i=0, li=link; i<nb_link; li++, i++)
+						if ((*li)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],link[i]->nbr);
-							SetFloat(sortie[1],link[i]->mass1->posX);
-							SetFloat(sortie[2],link[i]->mass1->posY);
-							SetFloat(sortie[3],link[i]->mass2->posX);
-							SetFloat(sortie[4],link[i]->mass2->posY);
+							SetFloat(sortie[0],(*li)->nbr);
+							SetFloat(sortie[1],(*li)->mass1->posX);
+							SetFloat(sortie[2],(*li)->mass1->posY);
+							SetFloat(sortie[3],(*li)->mass2->posX);
+							SetFloat(sortie[4],(*li)->mass2->posY);
 							ToOutAnything(0,S_linksPosNo,5,sortie);
 						}
 			}
@@ -746,15 +782,15 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_link;i++)	
+					for (i=0, li=link; i<nb_link; li++, i++)	
 					{
-						if (auxarg2==link[i]->Id)
+						if (auxarg2==(*li)->Id)
 						{
-							SetSymbol(sortie[0],link[i]->Id);
-							SetFloat(sortie[1],link[i]->mass1->posX);
-							SetFloat(sortie[2],link[i]->mass1->posY);
-							SetFloat(sortie[3],link[i]->mass2->posX);
-							SetFloat(sortie[4],link[i]->mass2->posY);
+							SetSymbol(sortie[0],(*li)->Id);
+							SetFloat(sortie[1],(*li)->mass1->posX);
+							SetFloat(sortie[2],(*li)->mass1->posY);
+							SetFloat(sortie[3],(*li)->mass2->posX);
+							SetFloat(sortie[4],(*li)->mass2->posY);
 							ToOutAnything(0,S_linksPosId,5,sortie);
 						}
 					}
@@ -766,12 +802,12 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->speedX);
-							SetFloat(sortie[2],mass[i]->speedY);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->speedX);
+							SetFloat(sortie[2],(*mi)->speedY);
 							ToOutAnything(0,S_massesSpeedsNo,3,sortie);
 						}
 			}
@@ -780,13 +816,13 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass; mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->speedX);
-							SetFloat(sortie[2],mass[i]->speedY);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->speedX);
+							SetFloat(sortie[2],(*mi)->speedY);
 							ToOutAnything(0,S_massesSpeedsId,3,sortie);
 						}
 					}
@@ -802,10 +838,11 @@ protected:
 	{	
 		NEWARR(t_atom,sortie,2*nb_mass);
 		t_int i;
+		t_mass **mi;
 	
-		for (i=0; i<nb_mass; i++)	{
-			SetFloat((sortie[2*i]),mass[i]->posX);
-			SetFloat((sortie[2*i+1]),mass[i]->posY);
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			SetFloat((sortie[2*i]),(*mi)->posX);
+			SetFloat((sortie[2*i+1]),(*mi)->posY);
 		}
 		ToOutAnything(0, S_massesPosL, 2*nb_mass, sortie);
 		DELARR(sortie);
@@ -816,10 +853,11 @@ protected:
 	{	
 		NEWARR(t_atom,sortie,2*nb_mass);
 		t_int i;
+		t_mass **mi;
 	
-		for (i=0; i<nb_mass; i++)	{
-			SetFloat((sortie[2*i]),mass[i]->out_forceX);
-			SetFloat((sortie[2*i+1]),mass[i]->out_forceY);
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			SetFloat((sortie[2*i]),(*mi)->out_forceX);
+			SetFloat((sortie[2*i+1]),(*mi)->out_forceY);
 		}
 		ToOutAnything(0, S_massesForcesL, 2*nb_mass, sortie);
 		DELARR(sortie);
@@ -830,25 +868,27 @@ protected:
 	{	
 		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);
+		t_mass **mi;
+		t_link **li;
+
+		for (i=0, mi=mass; i<nb_mass; mi++, i++)	{
+			SetFloat((sortie[0]),(*mi)->nbr);
+			SetSymbol((sortie[1]),(*mi)->Id);
+			SetFloat((sortie[2]),(*mi)->mobile);
+			SetFloat((sortie[3]),1/(*mi)->invM);
+			SetFloat((sortie[4]),(*mi)->posX);
+			SetFloat((sortie[5]),(*mi)->posY);
 		ToOutAnything(1, S_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);
+		for (i=0, li=link; i<nb_link; li++, i++)	{
+			SetFloat((sortie[0]),(*li)->nbr);
+			SetSymbol((sortie[1]),(*li)->Id);
+			SetFloat((sortie[2]),(*li)->mass1->nbr);
+			SetFloat((sortie[3]),(*li)->mass2->nbr);
+			SetFloat((sortie[4]),(*li)->K1);
+			SetFloat((sortie[5]),(*li)->D1);
+			SetFloat((sortie[6]),(*li)->D2);
 		ToOutAnything(1, S_Link, 7, sortie);
 		}
 
diff --git a/msd3D/02_msd3Dperf.pd b/msd3D/02_msd3Dperf.pd
index b52b0cd..65dc785 100644
--- a/msd3D/02_msd3Dperf.pd
+++ b/msd3D/02_msd3Dperf.pd
@@ -78,8 +78,6 @@
 #X obj 52 678 route massesPos;
 #X msg 52 425 bang \, get massesPos;
 #X text 265 487 <-- Move masses;
-#X msg 143 479 forceX mob 100;
-#X msg 143 503 forceX mob -100;
 #X floatatom 495 615 5 0 0 0 - - -;
 #X floatatom 536 618 5 0 0 0 - - -;
 #X floatatom 589 619 5 0 0 0 - - -;
@@ -89,6 +87,8 @@
 #X msg 162 553 forceY mob -100;
 #X msg 176 577 forceZ mob 100;
 #X msg 175 601 forceZ mob -100;
+#X msg 143 479 forceX mob 100;
+#X msg 144 503 forceX mob -100;
 #X connect 0 0 31 0;
 #X connect 1 0 5 0;
 #X connect 2 0 0 0;
@@ -104,7 +104,7 @@
 #X connect 5 4 17 0;
 #X connect 5 4 34 0;
 #X connect 6 0 30 0;
-#X connect 7 0 51 0;
+#X connect 7 0 49 0;
 #X connect 9 0 0 0;
 #X connect 10 0 30 0;
 #X connect 10 0 42 0;
@@ -145,14 +145,14 @@
 #X connect 42 0 38 0;
 #X connect 43 0 12 0;
 #X connect 44 0 31 0;
-#X connect 46 0 31 0;
-#X connect 47 0 31 0;
-#X connect 48 0 51 1;
-#X connect 49 0 51 2;
-#X connect 50 0 51 3;
-#X connect 51 0 8 0;
-#X connect 52 0 39 1;
-#X connect 52 0 40 1;
+#X connect 46 0 49 1;
+#X connect 47 0 49 2;
+#X connect 48 0 49 3;
+#X connect 49 0 8 0;
+#X connect 50 0 39 1;
+#X connect 50 0 40 1;
+#X connect 51 0 31 0;
+#X connect 52 0 31 0;
 #X connect 53 0 31 0;
 #X connect 54 0 31 0;
 #X connect 55 0 31 0;
diff --git a/msd3D/help-msd3D.pd b/msd3D/help-msd3D.pd
index 53382b5..547aad7 100644
--- a/msd3D/help-msd3D.pd
+++ b/msd3D/help-msd3D.pd
@@ -15,7 +15,6 @@
 #X obj 61 403 cnv 15 610 210 empty empty DYNAMIC_SETTING 20 12 0 14
 -262131 -66577 0;
 #X text 350 467 \$2 : New value;
-#X text 348 503 \$1 : Id (symbol);
 #X text 348 521 \$2 : New value;
 #X msg 87 429 posX \$1 \$2;
 #X text 350 431 Set position of mass(es);
@@ -63,18 +62,19 @@ their;
 #X msg 83 548 Zmin \$1 \, Zmax \$1;
 #X obj 33 821 msd3D;
 #X text 350 449 \$1 : Id (symbol) or No;
-#X connect 1 0 51 0;
-#X connect 8 0 51 0;
-#X connect 14 0 51 0;
-#X connect 17 0 51 0;
-#X connect 19 0 51 0;
-#X connect 20 0 51 0;
-#X connect 23 0 51 0;
-#X connect 27 0 51 0;
-#X connect 30 0 51 0;
-#X connect 39 0 51 0;
-#X connect 45 0 51 0;
-#X connect 46 0 51 0;
+#X text 348 503 \$1 : Id (symbol) or No;
+#X connect 1 0 50 0;
+#X connect 8 0 50 0;
+#X connect 13 0 50 0;
+#X connect 16 0 50 0;
+#X connect 18 0 50 0;
+#X connect 19 0 50 0;
+#X connect 22 0 50 0;
+#X connect 26 0 50 0;
+#X connect 29 0 50 0;
+#X connect 38 0 50 0;
+#X connect 44 0 50 0;
+#X connect 45 0 50 0;
 #X restore 158 305 pd masses;
 #X text 12 305 HELP on masses --->;
 #X text 11 336 HELP on links --->;
diff --git a/msd3D/imsd3Dball.pd b/msd3D/imsd3Dball.pd
index 324af35..90dca47 100644
--- a/msd3D/imsd3Dball.pd
+++ b/msd3D/imsd3Dball.pd
@@ -117,6 +117,7 @@
 #X obj 116 38 t b b b b;
 #X obj 442 294 t b;
 #X text 310 286 Create window;
+#X text 416 489 NOT UPDATED FOR MSD VERSION 0.04;
 #X connect 0 0 25 0;
 #X connect 3 0 2 0;
 #X connect 4 0 5 0;
diff --git a/msd3D/main.cpp b/msd3D/main.cpp
index 7b0d2f4..fff45bc 100755
--- a/msd3D/main.cpp
+++ b/msd3D/main.cpp
@@ -30,7 +30,7 @@
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
- Version 0.04 -- 26.04.2005
+ Version 0.05 -- 28.04.2005
 */
 
 // include flext header
@@ -38,7 +38,7 @@
 #include <math.h>
 
 // define constants
-#define MSD3D_VERSION 0.04
+#define MSD3D_VERSION 0.05
 #define nb_max_link   4000
 #define nb_max_mass   4000
 #define Id_length   20
@@ -120,13 +120,14 @@ protected:
 	void m_reset() 
 	{ 
 		t_int i;
-//		t_atom sortie[0];
+		t_mass **mi;
+		t_link **li;
 
-		for (i=0; i<nb_mass; i++)	{
-			delete mass[i];
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)	{
+			delete (*mi);
 			}
-		for (i=0; i<nb_link; i++)	{
-			delete link[i];
+		for (i=0, li=link; i<nb_link;li++, i++)	{
+			delete (*li);
 			}
 		ToOutAnything(1,S_Reset,0,NULL);
 		nb_link = 0;
@@ -141,66 +142,67 @@ protected:
 	{
 		t_float F=0,Fx=0,Fy=0, Fz=0,distance,vitesse, X_new, Y_new, Z_new;
 		t_int i;
-		struct _mass mass_1, mass_2;
+		t_mass **mi;
+		t_link **li;
 	
-		for (i=0; i<nb_link; i++)	{
+		for (i=0, li=link; i<nb_link;li++, 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) + pow(link[i]->mass1->posZ-link[i]->mass2->posZ,2));	// L[n]
-			if (distance < link[i]->long_min || distance > link[i]->long_max)	{	
+			distance = sqrt(pow((*li)->mass1->posX-(*li)->mass2->posX,2) + pow((*li)->mass1->posY
+				-(*li)->mass2->posY,2) + pow((*li)->mass1->posZ-(*li)->mass2->posZ,2));	// L[n]
+			if (distance < (*li)->long_min || distance > (*li)->long_max)	{	
 				Fx = 0;
 				Fy = 0;
 				Fz = 0;
 			}
 			else	{
-				F  = link[i]->K1 * (distance - link[i]->longueur) ;			// F = K1(L[n] - L[0])
-				F += link[i]->D1 * (distance - link[i]->distance_old) ;			// F = F + D1(L[n] - L[n-1])
+				F  = (*li)->K1 * (distance - (*li)->longueur) ;			// F = K1(L[n] - L[0])
+				F += (*li)->D1 * (distance - (*li)->distance_old) ;			// F = F + D1(L[n] - L[n-1])
 				if (distance != 0) 	{
-					Fx = F * (link[i]->mass1->posX - link[i]->mass2->posX)/distance;	// Fx[n] = F * Lx[n]/L[n]
-					Fy = F * (link[i]->mass1->posY - link[i]->mass2->posY)/distance;	// Fy[n] = F * Ly[n]/L[n]
-					Fz = F * (link[i]->mass1->posZ - link[i]->mass2->posZ)/distance;	// Fy[n] = F * Lz[n]/L[n]
+					Fx = F * ((*li)->mass1->posX - (*li)->mass2->posX)/distance;	// Fx[n] = F * Lx[n]/L[n]
+					Fy = F * ((*li)->mass1->posY - (*li)->mass2->posY)/distance;	// Fy[n] = F * Ly[n]/L[n]
+					Fz = F * ((*li)->mass1->posZ - (*li)->mass2->posZ)/distance;	// Fy[n] = F * Lz[n]/L[n]
 				}
 			}
-			link[i]->mass1->forceX -= Fx;					// Fx1[n] = -Fx
-			link[i]->mass1->forceX -= link[i]->D2*link[i]->mass1->speedX;	// Fx1[n] = Fx1[n] - D2 * vx1[n-1]
-			link[i]->mass2->forceX += Fx;					// Fx2[n] = Fx
-			link[i]->mass2->forceX -= link[i]->D2*link[i]->mass2->speedX;	// Fx2[n] = Fx2[n] - D2 * vx2[n-1]
-			link[i]->mass1->forceY -= Fy;					// Fy1[n] = -Fy
-			link[i]->mass1->forceY -= link[i]->D2*link[i]->mass1->speedY;	// Fy1[n] = Fy1[n] - D2 * vy1[n-1]
-			link[i]->mass2->forceY += Fy;					// Fy2[n] = Fy
-			link[i]->mass2->forceY -= link[i]->D2*link[i]->mass2->speedY;	// Fy2[n] = Fy2[n] - D2 * vy2[n-1]
-			link[i]->mass1->forceZ -= Fz;					// Fz1[n] = -Fz
-			link[i]->mass1->forceZ -= link[i]->D2*link[i]->mass1->speedZ;	// Fz1[n] = Fz1[n] - D2 * vz1[n-1]
-			link[i]->mass2->forceZ += Fz;					// Fz2[n] = Fz
-			link[i]->mass2->forceZ -= link[i]->D2*link[i]->mass2->speedZ;	// Fz2[n] = Fz2[n] - D2 * vz2[n-1]
-			link[i]->distance_old = distance;				// L[n-1] = L[n]
+			(*li)->mass1->forceX -= Fx;					// Fx1[n] = -Fx
+			(*li)->mass1->forceX -= (*li)->D2*(*li)->mass1->speedX;	// Fx1[n] = Fx1[n] - D2 * vx1[n-1]
+			(*li)->mass2->forceX += Fx;					// Fx2[n] = Fx
+			(*li)->mass2->forceX -= (*li)->D2*(*li)->mass2->speedX;	// Fx2[n] = Fx2[n] - D2 * vx2[n-1]
+			(*li)->mass1->forceY -= Fy;					// Fy1[n] = -Fy
+			(*li)->mass1->forceY -= (*li)->D2*(*li)->mass1->speedY;	// Fy1[n] = Fy1[n] - D2 * vy1[n-1]
+			(*li)->mass2->forceY += Fy;					// Fy2[n] = Fy
+			(*li)->mass2->forceY -= (*li)->D2*(*li)->mass2->speedY;	// Fy2[n] = Fy2[n] - D2 * vy2[n-1]
+			(*li)->mass1->forceZ -= Fz;					// Fz1[n] = -Fz
+			(*li)->mass1->forceZ -= (*li)->D2*(*li)->mass1->speedZ;	// Fz1[n] = Fz1[n] - D2 * vz1[n-1]
+			(*li)->mass2->forceZ += Fz;					// Fz2[n] = Fz
+			(*li)->mass2->forceZ -= (*li)->D2*(*li)->mass2->speedZ;	// Fz2[n] = Fz2[n] - D2 * vz2[n-1]
+			(*li)->distance_old = distance;				// L[n-1] = L[n]
 		}
 
-		for (i=0; i<nb_mass; i++)
+		for (i=0, mi=mass; i<nb_mass;mi++, 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; // x[n] =Fx[n]/M+2x[n]-x[n-1]
-				mass[i]->posX2 = mass[i]->posX;				// x[n-2] = x[n-1]
-				mass[i]->posX = max(min(X_new,Xmax),Xmin);		// x[n-1] = x[n]	
-				mass[i]->speedX = mass[i]->posX - mass[i]->posX2;	// vx[n] = x[n] - x[n-1]
-				Y_new = mass[i]->forceY * mass[i]->invM + 2*mass[i]->posY - mass[i]->posY2; // y[n] =Fy[n]/M+2y[n]-y[n-1]
-				mass[i]->posY2 = mass[i]->posY;				// y[n-2] = y[n-1]
-				mass[i]->posY = max(min(Y_new,Ymax),Ymin);		// y[n-1] = y[n]	
-				mass[i]->speedY = mass[i]->posY - mass[i]->posY2;	// vy[n] = y[n] - y[n-1]
-				Z_new = mass[i]->forceZ * mass[i]->invM + 2*mass[i]->posZ - mass[i]->posZ2; // x[n] =Fx[n]/M+2x[n]-x[n-1]
-				mass[i]->posZ2 = mass[i]->posZ;				// z[n-2] = z[n-1]
-				mass[i]->posZ = max(min(Z_new,Zmax),Zmin);		// z[n-1] = z[n]	
-				mass[i]->speedZ = mass[i]->posZ - mass[i]->posZ2;	// vz[n] = z[n] - z[n-1]
+			if ((*mi)->mobile == 1)  		{
+				X_new = (*mi)->forceX * (*mi)->invM + 2*(*mi)->posX - (*mi)->posX2; // x[n] =Fx[n]/M+2x[n]-x[n-1]
+				(*mi)->posX2 = (*mi)->posX;				// x[n-2] = x[n-1]
+				(*mi)->posX = max(min(X_new,Xmax),Xmin);		// x[n-1] = x[n]	
+				(*mi)->speedX = (*mi)->posX - (*mi)->posX2;	// vx[n] = x[n] - x[n-1]
+				Y_new = (*mi)->forceY * (*mi)->invM + 2*(*mi)->posY - (*mi)->posY2; // y[n] =Fy[n]/M+2y[n]-y[n-1]
+				(*mi)->posY2 = (*mi)->posY;				// y[n-2] = y[n-1]
+				(*mi)->posY = max(min(Y_new,Ymax),Ymin);		// y[n-1] = y[n]	
+				(*mi)->speedY = (*mi)->posY - (*mi)->posY2;	// vy[n] = y[n] - y[n-1]
+				Z_new = (*mi)->forceZ * (*mi)->invM + 2*(*mi)->posZ - (*mi)->posZ2; // x[n] =Fx[n]/M+2x[n]-x[n-1]
+				(*mi)->posZ2 = (*mi)->posZ;				// z[n-2] = z[n-1]
+				(*mi)->posZ = max(min(Z_new,Zmax),Zmin);		// z[n-1] = z[n]	
+				(*mi)->speedZ = (*mi)->posZ - (*mi)->posZ2;	// vz[n] = z[n] - z[n-1]
 				}
 
-		for (i=0; i<nb_mass; i++)	{
+		for (i=0, mi=mass; i<nb_mass;mi++, 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;
-			mass[i]->out_forceZ = mass[i]->forceZ;
-			mass[i]->forceZ = 0;
+			(*mi)->out_forceX = (*mi)->forceX;
+			(*mi)->forceX = 0;
+			(*mi)->out_forceY = (*mi)->forceY;
+			(*mi)->forceY = 0;
+			(*mi)->out_forceZ = (*mi)->forceZ;
+			(*mi)->forceZ = 0;
 		}
 	}
 
@@ -251,50 +253,80 @@ protected:
 
 	void m_forceX(int argc,t_atom *argv) 
 	{
-	// add a force to mass(es) named Id
+	// add a force to mass(es) named Id or No
 		t_int i;
-		const t_symbol *sym = GetSymbol(argv[0]);
+		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("forceX : Idmass value");
 
-		for (i=0; i<nb_mass;i++)
-		{
-			if (sym == mass[i]->Id)
-				mass[i]->forceX += GetFloat(argv[1]);
-		}
+		if (sym ==0)	
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (GetInt(argv[0]) == (*mi)->nbr)	{
+					(*mi)->forceX = GetFloat(argv[1]);
+					break;
+				}
+			}
+		else
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (sym == (*mi)->Id)
+					(*mi)->forceX = GetFloat(argv[1]);
+			}
 	}
 
 	void m_forceY(int argc,t_atom *argv) 
 	{
-	// add a force to mass(es) named Id
+	// add a force to mass(es) named Id or No
 		t_int i;
-		const t_symbol *sym = GetSymbol(argv[0]);
+		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
-			error("forceY : Idmass value");
+			error("forceX : Idmass value");
 
-		for (i=0; i<nb_mass;i++)
-		{
-			if (sym == mass[i]->Id)
-				mass[i]->forceY += GetFloat(argv[1]);
-		}
+		if (sym ==0)	
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (GetInt(argv[0]) == (*mi)->nbr)	{
+					(*mi)->forceY = GetFloat(argv[1]);
+					break;
+				}
+			}
+		else
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (sym == (*mi)->Id)
+					(*mi)->forceY = GetFloat(argv[1]);
+			}
 	}
 
 	void m_forceZ(int argc,t_atom *argv) 
 	{
-	// add a force to mass(es) named Id
+	// add a force to mass(es) named Id or No
 		t_int i;
-		const t_symbol *sym = GetSymbol(argv[0]);
+		const t_symbol *sym = GetASymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
-			error("forceZ : Idmass value");
+			error("forceX : Idmass value");
 
-		for (i=0; i<nb_mass;i++)
-		{
-			if (sym == mass[i]->Id)
-				mass[i]->forceZ += GetFloat(argv[1]);
-		}
+		if (sym ==0)	
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (GetInt(argv[0]) == (*mi)->nbr)	{
+					(*mi)->forceZ = GetFloat(argv[1]);
+					break;
+				}
+			}
+		else
+			for (i=0, mi=mass; i<nb_mass; mi++, i++)
+			{
+				if (sym == (*mi)->Id)
+					(*mi)->forceZ = GetFloat(argv[1]);
+			}
 	}
 
 	void m_posX(int argc,t_atom *argv) 
@@ -302,15 +334,16 @@ protected:
 	// displace mass(es) named Id to a certain position
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("posX : Idmass value");
 
 		if (GetFloat(argv[1]) < Xmax && GetFloat(argv[1]) > Xmin)
-			for (i=0; i<nb_mass;i++)
+			for (i=0, mi=mass; i<nb_mass;mi++, i++)
 			{
-				if (sym == mass[i]->Id)
-					mass[i]->posX = GetAFloat(argv[1]);
+				if (sym == (*mi)->Id)
+					(*mi)->posX = GetAFloat(argv[1]);
 			}
 	}
 
@@ -319,15 +352,16 @@ protected:
 	// displace mass(es) named Id to a certain position
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("posY : Idmass value");
 
 		if (GetFloat(argv[1]) < Ymax && GetFloat(argv[1]) > Ymin)
-			for (i=0; i<nb_mass;i++)
+			for (i=0, mi=mass; i<nb_mass;mi++, i++)
 			{
-				if (sym == mass[i]->Id)
-					mass[i]->posY = GetFloat(argv[1]);
+				if (sym == (*mi)->Id)
+					(*mi)->posY = GetFloat(argv[1]);
 			}
 		
 	}
@@ -337,15 +371,16 @@ protected:
 	// displace mass(es) named Id to a certain position
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_mass **mi;
 
 		if (argc != 2)
 			error("posZ : Idmass value");
 
 		if (GetFloat(argv[1]) < Zmax && GetFloat(argv[1]) > Zmin)
-			for (i=0; i<nb_mass;i++)
+			for (i=0, mi=mass; i<nb_mass;mi++, i++)
 			{
-				if (sym == mass[i]->Id)
-					mass[i]->posZ = GetFloat(argv[1]);
+				if (sym == (*mi)->Id)
+					(*mi)->posZ = GetFloat(argv[1]);
 			}
 		
 	}
@@ -354,15 +389,16 @@ protected:
 	{
 	// set mass No to mobile
 		t_int i,aux;
+		t_mass **mi;
 	
 		if (argc != 1)
 			error("setMobile : Idmass");
 		
 		aux = GetInt(argv[0]);	
-		for (i=0; i<nb_mass;i++)
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)
 			{
-				if (mass[i]->nbr == aux)
-					mass[i]->mobile = 1;
+				if ((*mi)->nbr == aux)
+					(*mi)->mobile = 1;
 			}
 	
 	}
@@ -371,15 +407,16 @@ protected:
 	{
 	// set mass No to fixed
 		t_int i,aux;
+		t_mass **mi;
 		
 		if (argc != 1)
 			error("setFixed : Idmass");
 		
 		aux = GetAInt(argv[0]);	
-		for (i=0; i<nb_mass;i++)
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)
 			{
-				if (mass[i]->nbr == aux)
-					mass[i]->mobile = 0;
+				if ((*mi)->nbr == aux)
+					(*mi)->mobile = 0;
 			}
 	
 	}
@@ -390,14 +427,16 @@ protected:
 		t_int i,nb_link_delete=0;
 		t_atom sortie[7];
 		NEWARR(t_atom,aux,nb_link);
+		t_mass **mi;
+		t_link **li;
 
 		if (argc != 1)
 			error("deleteMass : Nomass");
 	
 		// Delete associated links
-		for (i=0; i<nb_link;i++)	{
-			if (link[i]->mass1->nbr == GetInt(argv[0]) || link[i]->mass2->nbr == GetInt(argv[0]))	{
-				SetFloat((aux[nb_link_delete]),link[i]->nbr);
+		for (i=0, li=link; i<nb_link;li++, i++)	{
+			if ((*li)->mass1->nbr == GetInt(argv[0]) || (*li)->mass2->nbr == GetInt(argv[0]))	{
+				SetFloat((aux[nb_link_delete]),(*li)->nbr);
 				nb_link_delete++;
 			}
 		}
@@ -406,17 +445,17 @@ protected:
 			m_delete_link(1,&aux[i]);
 
 		// Delete mass
-		for (i=0; i<nb_mass;i++)
-			if (mass[i]->nbr == GetInt(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);
-				SetFloat((sortie[6]),mass[i]->posZ);
-				delete mass[i];
-				mass[i] = mass[nb_mass-1];	// copy last mass indeed
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)
+			if ((*mi)->nbr == GetInt(argv[0]))	{
+				SetFloat((sortie[0]),(*mi)->nbr);
+				SetSymbol((sortie[1]),(*mi)->Id);
+				SetFloat((sortie[2]),(*mi)->mobile);
+				SetFloat((sortie[3]),1/(*mi)->invM);
+				SetFloat((sortie[4]),(*mi)->posX);
+				SetFloat((sortie[5]),(*mi)->posY);
+				SetFloat((sortie[6]),(*mi)->posZ);
+				delete (*mi);
+				(*mi) = mass[nb_mass-1];	// copy last mass indeed
 				nb_mass--;
 				ToOutAnything(1,S_Mass_deleted,7,sortie);
 				break;
@@ -482,18 +521,19 @@ protected:
 		t_int i;
         	t_mass *mass1 = NULL;
         	t_mass *mass2 = NULL;
-        	
+ 		t_mass **mi;
+       	
         	if (argc < 6 || argc > 8)
         	    error("link : Id Nomass1 Nomass2 K D1 D2 (Lmin Lmax)");
 			
         	// check for existence of link masses:
-        	for (i=0; i<nb_mass;i++)
-				if (mass[i]->nbr==GetInt(argv[1]))	// pointer to mass1
+        	for (i=0, mi=mass; i<nb_mass;mi++, i++)
+				if ((*mi)->nbr==GetInt(argv[1]))	// pointer to mass1
 					// we found mass1
-        	        mass1 = mass[i];
-				else if (mass[i]->nbr==GetInt(argv[2]))	// pointer to mass2
+        	        mass1 = (*mi);
+				else if ((*mi)->nbr==GetInt(argv[2]))	// pointer to mass2
 					// ... and mass2
-        	        mass2 = mass[i];
+        	        mass2 = (*mi);
 
         	if (mass1 and mass2)
         	{
@@ -549,6 +589,7 @@ protected:
 		NEWARR(t_int,imass1,nb_mass);
 		NEWARR(t_int,imass2,nb_mass);
 		t_symbol *Id1, *Id2;
+		t_mass **mi;
 
 		if (argc < 6 || argc > 8)
 			error("ilink : Id Idmass1 Idmass2 K D1 D2 (Lmin Lmax)");
@@ -557,12 +598,12 @@ protected:
 		Id2 = GetSymbol(argv[2]);
 		ToOutAnything(1,S_iLink,0,aux);
 
-		for (i=0;i<nb_mass;i++)	{
-			if (Id1 == mass[i]->Id)	{
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)	{
+			if (Id1 == (*mi)->Id)	{
 				imass1[nbmass1]=i;
 				nbmass1++;
 			}
-			if (Id2 == mass[i]->Id)	{
+			if (Id2 == (*mi)->Id)	{
 				imass2[nbmass2]=i;
 				nbmass2++;
 			}
@@ -597,14 +638,15 @@ protected:
 	// set rigidity of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setK : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link;li++, i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->K1 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->K1 = GetFloat(argv[1]);
 		}
 	}
 
@@ -613,14 +655,15 @@ protected:
 	// set damping of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setD : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link;li++, i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->D1 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->D1 = GetFloat(argv[1]);
 		}
 	}
 
@@ -629,14 +672,15 @@ protected:
 	// set damping of link(s) named Id
 		t_int i;
 		const t_symbol *sym = GetSymbol(argv[0]);
+		t_link **li;
 
 		if (argc != 2)
 			error("setD2 : IdLink Value");
 
-		for (i=0; i<nb_link;i++)
+		for (i=0, li=link; i<nb_link;li++, i++)
 		{
-			if (sym == link[i]->Id)
-				link[i]->D2 = GetFloat(argv[1]);
+			if (sym == (*li)->Id)
+				(*li)->D2 = GetFloat(argv[1]);
 		}
 	}
 
@@ -645,21 +689,22 @@ protected:
 	// Delete link
 		t_int i;
 		t_atom sortie[7];
+		t_link **li;
 
 		if (argc != 1)
 			error("deleteLink : NoLink");
 
-		for (i=0; i<nb_link;i++)
-			if (link[i]->nbr == GetInt(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];	// copy last link instead
+		for (i=0, li=link; i<nb_link;li++, i++)
+			if ((*li)->nbr == GetInt(argv[0]))	{
+				SetFloat((sortie[0]),(*li)->nbr);
+				SetSymbol((sortie[1]),(*li)->Id);
+				SetFloat((sortie[2]),(*li)->mass1->nbr);
+				SetFloat((sortie[3]),(*li)->mass2->nbr);
+				SetFloat((sortie[4]),(*li)->K1);
+				SetFloat((sortie[5]),(*li)->D1);
+				SetFloat((sortie[6]),(*li)->D2);
+				delete (*li);
+				(*li)=link[nb_link-1];	// copy last link instead
 				nb_link--;
 				ToOutAnything(1,S_Link_deleted,7,sortie);
 				break;
@@ -677,46 +722,48 @@ protected:
 		t_atom sortie[7];
 		auxtype = GetSymbol(argv[0]);
 		auxarg = GetASymbol(argv[1]);		//auxarg : & symbol, 0 else
+		t_mass **mi;
+		t_link **li;
 
 		if (argc == 1)
 		{
 			if (auxtype == S_massesPos)// get all masses positions
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass;mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->posX);
-					SetFloat(sortie[2],mass[i]->posY);
-					SetFloat(sortie[3],mass[i]->posZ);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->posX);
+					SetFloat(sortie[2],(*mi)->posY);
+					SetFloat(sortie[3],(*mi)->posZ);
 					ToOutAnything(0,S_massesPos,4,sortie);
 				}
 			else if (auxtype == S_massesForces)// get all masses forces
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass;mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->out_forceX);
-					SetFloat(sortie[2],mass[i]->out_forceY);
-					SetFloat(sortie[3],mass[i]->out_forceZ);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->out_forceX);
+					SetFloat(sortie[2],(*mi)->out_forceY);
+					SetFloat(sortie[3],(*mi)->out_forceZ);
 					ToOutAnything(0,S_massesForces,4,sortie);
 				}
 			else if (auxtype == S_linksPos)// get all links positions
-				for (i=0; i<nb_link; i++)
+				for (i=0, li=link; i<nb_link;li++, i++)
 				{
-					SetFloat(sortie[0],link[i]->nbr);
-					SetFloat(sortie[1],link[i]->mass1->posX);
-					SetFloat(sortie[2],link[i]->mass1->posY);
-					SetFloat(sortie[3],link[i]->mass1->posZ);
-					SetFloat(sortie[4],link[i]->mass2->posX);
-					SetFloat(sortie[5],link[i]->mass2->posY);
-					SetFloat(sortie[6],link[i]->mass2->posZ);
+					SetFloat(sortie[0],(*li)->nbr);
+					SetFloat(sortie[1],(*li)->mass1->posX);
+					SetFloat(sortie[2],(*li)->mass1->posY);
+					SetFloat(sortie[3],(*li)->mass1->posZ);
+					SetFloat(sortie[4],(*li)->mass2->posX);
+					SetFloat(sortie[5],(*li)->mass2->posY);
+					SetFloat(sortie[6],(*li)->mass2->posZ);
 					ToOutAnything(0,S_linksPos,7,sortie);
 				}
 			else 		// get all masses speeds
-				for (i=0; i<nb_mass; i++)
+				for (i=0, mi=mass; i<nb_mass;mi++, i++)
 				{
-					SetFloat(sortie[0],mass[i]->nbr);
-					SetFloat(sortie[1],mass[i]->speedX);
-					SetFloat(sortie[2],mass[i]->speedY);
-					SetFloat(sortie[3],mass[i]->speedZ);
+					SetFloat(sortie[0],(*mi)->nbr);
+					SetFloat(sortie[1],(*mi)->speedX);
+					SetFloat(sortie[2],(*mi)->speedY);
+					SetFloat(sortie[3],(*mi)->speedZ);
 					ToOutAnything(0,S_massesSpeeds,4,sortie);
 				}
 		}
@@ -725,13 +772,13 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass;mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->posX);
-							SetFloat(sortie[2],mass[i]->posY);
-							SetFloat(sortie[3],mass[i]->posZ);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->posX);
+							SetFloat(sortie[2],(*mi)->posY);
+							SetFloat(sortie[3],(*mi)->posZ);
 							ToOutAnything(0,S_massesPosNo,4,sortie);
 						}
 			}
@@ -740,14 +787,14 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass;mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->posX);
-							SetFloat(sortie[2],mass[i]->posY);
-							SetFloat(sortie[3],mass[i]->posZ);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->posX);
+							SetFloat(sortie[2],(*mi)->posY);
+							SetFloat(sortie[3],(*mi)->posZ);
 							ToOutAnything(0,S_massesPosId,4,sortie);
 						}
 					}
@@ -759,13 +806,13 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass;mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->out_forceX);
-							SetFloat(sortie[2],mass[i]->out_forceY);
-							SetFloat(sortie[3],mass[i]->out_forceZ);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->out_forceX);
+							SetFloat(sortie[2],(*mi)->out_forceY);
+							SetFloat(sortie[3],(*mi)->out_forceZ);
 							ToOutAnything(0,S_massesForcesNo,4,sortie);
 						}
 			}
@@ -774,14 +821,14 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass;mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->out_forceX);
-							SetFloat(sortie[2],mass[i]->out_forceY);
-							SetFloat(sortie[3],mass[i]->out_forceZ);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->out_forceX);
+							SetFloat(sortie[2],(*mi)->out_forceY);
+							SetFloat(sortie[3],(*mi)->out_forceZ);
 							ToOutAnything(0,S_massesForcesId,4,sortie);
 						}
 					}
@@ -793,16 +840,16 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_link;i++)
-						if (link[i]->nbr==GetInt(argv[j]))
+					for (i=0, li=link; i<nb_link;li++, i++)
+						if ((*li)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],link[i]->nbr);
-							SetFloat(sortie[1],link[i]->mass1->posX);
-							SetFloat(sortie[2],link[i]->mass1->posY);
-							SetFloat(sortie[3],link[i]->mass1->posZ);
-							SetFloat(sortie[4],link[i]->mass2->posX);
-							SetFloat(sortie[5],link[i]->mass2->posY);
-							SetFloat(sortie[6],link[i]->mass2->posZ);
+							SetFloat(sortie[0],(*li)->nbr);
+							SetFloat(sortie[1],(*li)->mass1->posX);
+							SetFloat(sortie[2],(*li)->mass1->posY);
+							SetFloat(sortie[3],(*li)->mass1->posZ);
+							SetFloat(sortie[4],(*li)->mass2->posX);
+							SetFloat(sortie[5],(*li)->mass2->posY);
+							SetFloat(sortie[6],(*li)->mass2->posZ);
 							ToOutAnything(0,S_linksPosNo,7,sortie);
 						}
 			}
@@ -811,17 +858,17 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_link;i++)	
+					for (i=0, li=link; i<nb_link;li++, i++)	
 					{
-						if (auxarg2==link[i]->Id)
+						if (auxarg2==(*li)->Id)
 						{
-							SetSymbol(sortie[0],link[i]->Id);
-							SetFloat(sortie[1],link[i]->mass1->posX);
-							SetFloat(sortie[2],link[i]->mass1->posY);
-							SetFloat(sortie[3],link[i]->mass1->posZ);
-							SetFloat(sortie[4],link[i]->mass2->posX);
-							SetFloat(sortie[5],link[i]->mass2->posY);
-							SetFloat(sortie[6],link[i]->mass2->posZ);
+							SetSymbol(sortie[0],(*li)->Id);
+							SetFloat(sortie[1],(*li)->mass1->posX);
+							SetFloat(sortie[2],(*li)->mass1->posY);
+							SetFloat(sortie[3],(*li)->mass1->posZ);
+							SetFloat(sortie[4],(*li)->mass2->posX);
+							SetFloat(sortie[5],(*li)->mass2->posY);
+							SetFloat(sortie[6],(*li)->mass2->posZ);
 							ToOutAnything(0,S_linksPosId,7,sortie);
 						}
 					}
@@ -833,13 +880,13 @@ protected:
 			if (auxarg == 0) // No
 			{
 				for (j = 1; j<argc; j++)
-					for (i=0;i<nb_mass;i++)
-						if (mass[i]->nbr==GetInt(argv[j]))
+					for (i=0, mi=mass; i<nb_mass;mi++, i++)
+						if ((*mi)->nbr==GetInt(argv[j]))
 						{
-							SetFloat(sortie[0],mass[i]->nbr);
-							SetFloat(sortie[1],mass[i]->speedX);
-							SetFloat(sortie[2],mass[i]->speedY);
-							SetFloat(sortie[3],mass[i]->speedZ);
+							SetFloat(sortie[0],(*mi)->nbr);
+							SetFloat(sortie[1],(*mi)->speedX);
+							SetFloat(sortie[2],(*mi)->speedY);
+							SetFloat(sortie[3],(*mi)->speedZ);
 							ToOutAnything(0,S_massesSpeedsNo,4,sortie);
 						}
 			}
@@ -848,14 +895,14 @@ protected:
 				for (j = 1; j<argc; j++)
 				{
 					auxarg2 = GetSymbol(argv[j]);
-					for (i=0;i<nb_mass;i++)	
+					for (i=0, mi=mass; i<nb_mass;mi++, i++)	
 					{
-						if (auxarg2==mass[i]->Id)
+						if (auxarg2==(*mi)->Id)
 						{
-							SetSymbol(sortie[0],mass[i]->Id);
-							SetFloat(sortie[1],mass[i]->speedX);
-							SetFloat(sortie[2],mass[i]->speedY);
-							SetFloat(sortie[3],mass[i]->speedZ);
+							SetSymbol(sortie[0],(*mi)->Id);
+							SetFloat(sortie[1],(*mi)->speedX);
+							SetFloat(sortie[2],(*mi)->speedY);
+							SetFloat(sortie[3],(*mi)->speedZ);
 							ToOutAnything(0,S_massesSpeedsId,4,sortie);
 						}
 					}
@@ -871,11 +918,12 @@ protected:
 	{	
 		NEWARR(t_atom,sortie,3*nb_mass);
 		t_int i;
+		t_mass **mi;
 	
-		for (i=0; i<nb_mass; i++)	{
-			SetFloat((sortie[3*i]),mass[i]->posX);
-			SetFloat((sortie[3*i+1]),mass[i]->posY);
-			SetFloat((sortie[3*i+2]),mass[i]->posZ);
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)	{
+			SetFloat((sortie[3*i]),(*mi)->posX);
+			SetFloat((sortie[3*i+1]),(*mi)->posY);
+			SetFloat((sortie[3*i+2]),(*mi)->posZ);
 		}
 		ToOutAnything(0, S_massesPosL, 3*nb_mass, sortie);
 		DELARR(sortie);
@@ -886,11 +934,12 @@ protected:
 	{	
 		NEWARR(t_atom,sortie,3*nb_mass);
 		t_int i;
+		t_mass **mi;
 	
-		for (i=0; i<nb_mass; i++)	{
-			SetFloat((sortie[3*i]),mass[i]->out_forceX);
-			SetFloat((sortie[3*i+1]),mass[i]->out_forceY);
-			SetFloat((sortie[3*i+2]),mass[i]->out_forceZ);
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)	{
+			SetFloat((sortie[3*i]),(*mi)->out_forceX);
+			SetFloat((sortie[3*i+1]),(*mi)->out_forceY);
+			SetFloat((sortie[3*i+2]),(*mi)->out_forceZ);
 		}
 		ToOutAnything(0, S_massesForcesL, 3*nb_mass, sortie);
 		DELARR(sortie);
@@ -901,26 +950,28 @@ protected:
 	{	
 		t_atom sortie[7];
 		t_int i;
+		t_mass **mi;
+		t_link **li;
 	
-		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);
-			SetFloat((sortie[6]),mass[i]->posZ);
+		for (i=0, mi=mass; i<nb_mass;mi++, i++)	{
+			SetFloat((sortie[0]),(*mi)->nbr);
+			SetSymbol((sortie[1]),(*mi)->Id);
+			SetFloat((sortie[2]),(*mi)->mobile);
+			SetFloat((sortie[3]),1/(*mi)->invM);
+			SetFloat((sortie[4]),(*mi)->posX);
+			SetFloat((sortie[5]),(*mi)->posY);
+			SetFloat((sortie[6]),(*mi)->posZ);
 		ToOutAnything(1, S_Mass, 7, 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);
+		for (i=0, li=link; i<nb_link;li++, i++)	{
+			SetFloat((sortie[0]),(*li)->nbr);
+			SetSymbol((sortie[1]),(*li)->Id);
+			SetFloat((sortie[2]),(*li)->mass1->nbr);
+			SetFloat((sortie[3]),(*li)->mass2->nbr);
+			SetFloat((sortie[4]),(*li)->K1);
+			SetFloat((sortie[5]),(*li)->D1);
+			SetFloat((sortie[6]),(*li)->D2);
 		ToOutAnything(1, S_Link, 7, sortie);
 		}
 
diff --git a/msd3D/msd3Dball.pd b/msd3D/msd3Dball.pd
index 1ffcb08..3a1c863 100644
--- a/msd3D/msd3Dball.pd
+++ b/msd3D/msd3Dball.pd
@@ -168,6 +168,7 @@ mass fix 0 100 70 30 20 \, mass fix 0 100 70 70 20;
 #X msg 429 544 view 0 3 0 0 0 0 0 0 1;
 #X msg 429 523 view 0 0 1 0 0 0 0 1 0;
 #X msg 429 500 view 3 0 0.5 0 0 0 0 0 1;
+#X text 287 627 NOT UPDATED FOR MSD VERSION 0.04;
 #X connect 0 0 26 0;
 #X connect 3 0 2 0;
 #X connect 4 0 5 0;