From 60c2b879f26c5f008af0df7d7f159d33077225ac Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Sat, 09 Mar 2019 19:47:16 +0000
Subject: [PATCH] Cleanup of stretching energy plugin

---
 src/vertexmove.c |  132 ++++++++++---------------------------------
 1 files changed, 31 insertions(+), 101 deletions(-)

diff --git a/src/vertexmove.c b/src/vertexmove.c
index d33207f..362b895 100644
--- a/src/vertexmove.c
+++ b/src/vertexmove.c
@@ -20,10 +20,10 @@
     ts_uint i;
     ts_bool retval; 
     ts_uint cellidx; 
-    ts_double delta_energy, oenergy,dvol=0.0, darea=0.0, dstretchenergy=0.0;
+    ts_double delta_energy, oenergy;
     ts_double costheta,sintheta,phi,r;
 	//This will hold all the information of vtx and its neighbours
-    ts_vertex backupvtx[20], *constvol_vtx_moved=NULL, *constvol_vtx_backup=NULL;
+    ts_vertex backupvtx[20]; // *constvol_vtx_moved=NULL, *constvol_vtx_backup=NULL;
     memcpy((void *)&backupvtx[0],(void *)vtx,sizeof(ts_vertex));
 
     //random move in a sphere with radius stepsize:
@@ -60,22 +60,9 @@
 		vesicle->plist->pointer->plugin->function->vm_energy_before_prepare(vesicle, vtx);
 		vesicle->plist->pointer=vesicle->plist->pointer->next;
 	}
+/* End of vm_energy_before_prepare() */
 
-    if(vesicle->tape->constareaswitch==2){
-		for(i=0;i<vtx->tristar_no;i++) darea-=vtx->tristar[i]->area;
-    
-    }
-	//stretching energy 1 of 3
-	if(vesicle->tape->stretchswitch==1){
-		for(i=0;i<vtx->tristar_no;i++) dstretchenergy-=vtx->tristar[i]->energy;
-	}
-    delta_energy=0;
-
-
-//    vesicle_volume(vesicle);
-//    fprintf(stderr,"Volume in the beginning=%1.16e\n", vesicle->volume);
-
-    //update the normals of triangles that share bead i.
+//update the normals of triangles that share bead i.
     for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]);
 	oenergy=vtx->energy;
     energy_vertex(vtx);
@@ -87,47 +74,16 @@
         delta_energy+=vtx->neigh[i]->xk*(vtx->neigh[i]->energy-oenergy);
     }
 
-
 /* Entry point for plugin vm_energy_after_execute() */
 
 	vesicle->plist->pointer=vesicle->plist->chain->vm_energy_after_execute;
 	while(vesicle->plist->pointer!=NULL){
-		delta_energy+=vesicle->plist->pointer->plugin->function->vm_energy_after_execute(vesicle, vtx);
+		delta_energy+=vesicle->plist->pointer->plugin->function->vm_energy_after_execute(vesicle, vtx, backupvtx);
 		vesicle->plist->pointer=vesicle->plist->pointer->next;
 	}
+/* End of vm_energy_after_execute() */
 
 
-
-    if(vesicle->tape->constareaswitch==2){
-        /* check whether the darea is gt epsarea */
-		for(i=0;i<vtx->tristar_no;i++) darea+=vtx->tristar[i]->area;
-        if(fabs(vesicle->area+darea-A0)>epsarea){
-	        //restore old state.
- 			vtx=memcpy((void *)vtx,(void *)&backupvtx[0],sizeof(ts_vertex));
-	        	for(i=0;i<vtx->neigh_no;i++){
-		        	vtx->neigh[i]=memcpy((void *)vtx->neigh[i],(void *)&backupvtx[i+1],sizeof(ts_vertex));
-	        	}
-            		for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]); 
-            		//fprintf(stderr,"fajlam!\n");
-            		return TS_FAIL;
-		}
-
-
-    }
-
-/* Vertices with spontaneous curvature may have spontaneous force perpendicular to the surface of the vesicle. additional delta energy is calculated in this function */
-	delta_energy+=direct_force_energy(vesicle,vtx,backupvtx);
-
-	//stretching energy 2 of 3
-	if(vesicle->tape->stretchswitch==1){
-		for(i=0;i<vtx->tristar_no;i++){ 
-			stretchenergy(vesicle, vtx->tristar[i]);
-			dstretchenergy+=vtx->tristar[i]->energy;
-			}
-	}
-
-	delta_energy+=dstretchenergy;	
-		
 /* No poly-bond energy for now!
 	if(vtx->grafted_poly!=NULL){
 		delta_energy+=
@@ -135,21 +91,6 @@
 			pow(sqrt(vtx_distance_sq(&backupvtx[0], vtx->grafted_poly->vlist->vtx[0])-1),2)) *vtx->grafted_poly->k;
 	}
 */
-
-// plane confinement energy due to compressing force
-	if(vesicle->tape->plane_confinement_switch){
-		if(vesicle->confinement_plane.force_switch){
-			//substract old energy
-			if(abs(vesicle->tape->plane_d/2.0-vesicle->confinement_plane.z_max)>1e-10) {
-				delta_energy-=vesicle->tape->plane_F / pow(vesicle->confinement_plane.z_max-backupvtx[0].z,2);
-				delta_energy+=vesicle->tape->plane_F / pow(vesicle->confinement_plane.z_max-vtx->z,2);
-			}
-			if(abs(-vesicle->tape->plane_d/2.0-vesicle->confinement_plane.z_min)>1e-10) {
-				delta_energy-=vesicle->tape->plane_F / pow(vesicle->confinement_plane.z_min-backupvtx[0].z,2);
-				delta_energy+=vesicle->tape->plane_F / pow(vesicle->confinement_plane.z_min-vtx->z,2);
-			}
-		}
-	}
 
 
 /* Entry point for plugin vm_before_montecarlo_constraint() function */
@@ -185,61 +126,50 @@
         if(expl(-delta_energy)< (ts_ldouble)drand48())
 #endif
     {
-    //not accepted, reverting changes
-  //  fprintf(stderr,"MC failed\n");
+/*************************************************** MC step rejected **************************************************************/
 	vtx=memcpy((void *)vtx,(void *)&backupvtx[0],sizeof(ts_vertex));
 	for(i=0;i<vtx->neigh_no;i++){
 		vtx->neigh[i]=memcpy((void *)vtx->neigh[i],(void *)&backupvtx[i+1],sizeof(ts_vertex));
 	}
 	
-    //update the normals of triangles that share bead i.
-   for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]);
-	//stretching energy 3 of 3
-	if(vesicle->tape->stretchswitch==1){
-		for(i=0;i<vtx->tristar_no;i++){ 
-			stretchenergy(vesicle,vtx->tristar[i]);
-			}
-	}
+	//update the normals of triangles that share bead i.
+	for(i=0;i<vtx->tristar_no;i++) triangle_normal_vector(vtx->tristar[i]);
 
-//    fprintf(stderr, "before vtx(x,y,z)=%e,%e,%e\n",constvol_vtx_moved->x, constvol_vtx_moved->y, constvol_vtx_moved->z);
-    if(vesicle->tape->constvolswitch == 1){
-        constvolumerestore(constvol_vtx_moved,constvol_vtx_backup);
-    }
-//    fprintf(stderr, "after vtx(x,y,z)=%e,%e,%e\n",constvol_vtx_moved->x, constvol_vtx_moved->y, constvol_vtx_moved->z);
-//    vesicle_volume(vesicle);
-//    fprintf(stderr,"Volume after fail=%1.16e\n", vesicle->volume);
+
+/* Entry point for plugin vm_before_montecarlo_constraint() function */
+	vesicle->plist->pointer=vesicle->plist->chain->vm_new_state_rejected;
+	while(vesicle->plist->pointer!=NULL){
+		vesicle->plist->pointer->plugin->function->vm_new_state_rejected(vesicle,vtx, &backupvtx[0]);
+		vesicle->plist->pointer=vesicle->plist->pointer->next;
+	}
+/* End of vm_before_montecarlo_constraint() */
+
+
     return TS_FAIL; 
     }
 }
-	//accepted	
- //   fprintf(stderr,"MC accepted\n");
-//	oldcellidx=vertex_self_avoidance(vesicle, &backupvtx[0]);
+/*************************************************** MC step accepted **************************************************************/
 	cellidx=vertex_self_avoidance(vesicle, vtx);
 	if(vtx->cell!=vesicle->clist->cell[cellidx]){
 		retval=cell_add_vertex(vesicle->clist->cell[cellidx],vtx);
-//		if(retval==TS_SUCCESS) cell_remove_vertex(vesicle->clist->cell[oldcellidx],vtx);
-		if(retval==TS_SUCCESS) cell_remove_vertex(backupvtx[0].cell,vtx);
-		
+		if(retval==TS_SUCCESS) cell_remove_vertex(backupvtx[0].cell,vtx);	
 	}
 
-    if(vesicle->tape->constvolswitch == 2){
-	vesicle->volume+=dvol;
-    } else
-    if(vesicle->tape->constvolswitch == 1){
-        constvolumeaccept(vesicle,constvol_vtx_moved,constvol_vtx_backup);
-    }
+/* Entry point for plugin vm_before_montecarlo_constraint() function */
+	vesicle->plist->pointer=vesicle->plist->chain->vm_new_state_accepted;
+	while(vesicle->plist->pointer!=NULL){
+		vesicle->plist->pointer->plugin->function->vm_new_state_accepted(vesicle,vtx, &backupvtx[0]);
+		vesicle->plist->pointer=vesicle->plist->pointer->next;
+	}
+/* End of vm_before_montecarlo_constraint() */
 
-    if(vesicle->tape->constareaswitch==2){
-        vesicle->area+=darea;
-    }
-//	if(oldcellidx);
-    //END MONTE CARLOOOOOOO
-//    vesicle_volume(vesicle);
-//    fprintf(stderr,"Volume after success=%1.16e\n", vesicle->volume);
     return TS_SUCCESS;
 }
 
 
+
+
+
 ts_bool single_poly_vertex_move(ts_vesicle *vesicle,ts_poly *poly,ts_vertex *vtx,ts_double *rn){
 	ts_uint i;
 	ts_bool retval; 

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