#include"general.h"
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#include"poly.h"
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#include<stdlib.h>
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#include"vertex.h"
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#include"bond.h"
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#include<math.h>
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#include"energy.h"
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ts_bool poly_assign_spring_const(ts_vesicle *vesicle){
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ts_uint i;
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for(i=0;i<vesicle->poly_list->n;i++){
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vesicle->poly_list->poly[i]->k = vesicle->spring_constant;
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}
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return TS_SUCCESS;
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}
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ts_poly *init_poly(ts_uint n, ts_vertex *grafted_vtx){
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ts_poly *poly=(ts_poly *)calloc(1,sizeof(ts_poly));
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poly->vlist = init_vertex_list(n);
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poly->blist = init_bond_list();
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poly->grafted_vtx = grafted_vtx;
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grafted_vtx->grafted_poly = poly;
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ts_uint i;
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for(i=0;i<n-1;i++){
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vtx_add_cneighbour(poly->blist, poly->vlist->vtx[i], poly->vlist->vtx[i+1]);
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vtx_add_neighbour(poly->vlist->vtx[i+1], poly->vlist->vtx[i]);
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}
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for(i=0;i<poly->blist->n;i++){
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poly->blist->bond[i]->bond_length=sqrt(vtx_distance_sq(poly->blist->bond[i]->vtx1,poly->blist->bond[i]->vtx2));
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bond_energy(poly->blist->bond[i],poly);
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}
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return poly;
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}
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ts_poly_list *init_poly_list(ts_uint n_poly, ts_uint n_mono, ts_vertex_list *vlist){
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ts_poly_list *poly_list=(ts_poly_list *)calloc(1,sizeof(ts_poly_list));
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poly_list->poly = (ts_poly **)calloc(n_poly,sizeof(ts_poly *));
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ts_uint i=0,j=0, idx;
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ts_uint gvtxi;
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ts_double xnorm,ynorm,znorm,normlength;
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if (n_poly > vlist->n){fatal("Number of polymers larger then numbero f vertices on a vesicle.",310);}
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while(i<n_poly){
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gvtxi = rand() % vlist->n;
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if (vlist->vtx[gvtxi]->grafted_poly == NULL){
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poly_list->poly[i] = init_poly(n_mono, vlist->vtx[gvtxi]);
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i++;
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}
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}
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poly_list->n = n_poly;
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/* Make straight poylmers normal to membrane. Dist. between poly vertices put to 1*/
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for (i=0;i<poly_list->n;i++){
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xnorm=0.0;
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ynorm=0.0;
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znorm=0.0;
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for (j=0;j<poly_list->poly[i]->grafted_vtx->tristar_no;j++){
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xnorm-=poly_list->poly[i]->grafted_vtx->tristar[j]->xnorm;
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ynorm-=poly_list->poly[i]->grafted_vtx->tristar[j]->ynorm;
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znorm-=poly_list->poly[i]->grafted_vtx->tristar[j]->znorm;
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}
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normlength=sqrt(xnorm*xnorm+ynorm*ynorm+znorm*znorm);
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xnorm=xnorm/normlength;
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ynorm=ynorm/normlength;
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znorm=znorm/normlength;
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for (j=0;j<poly_list->poly[i]->vlist->n;j++){
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poly_list->poly[i]->vlist->vtx[j]->x = poly_list->poly[i]->grafted_vtx->x + xnorm*(ts_double)(j+1);
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poly_list->poly[i]->vlist->vtx[j]->y = poly_list->poly[i]->grafted_vtx->y + ynorm*(ts_double)(j+1);
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poly_list->poly[i]->vlist->vtx[j]->z = poly_list->poly[i]->grafted_vtx->z + znorm*(ts_double)(j+1);
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}
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}
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//index correction for polymeres. Important, since each vtx has to have unique id
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idx=vlist->n;
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for(i=0;i<n_poly;i++){
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for(j=0;j<n_mono;j++,idx++){
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poly_list->poly[i]->vlist->vtx[j]->idx=idx;
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}
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}
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return poly_list;
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}
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ts_bool poly_free(ts_poly *poly){
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if (poly->grafted_vtx!=NULL){
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poly->grafted_vtx->grafted_poly=NULL;
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}
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vtx_list_free(poly->vlist);
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bond_list_free(poly->blist);
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free(poly);
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return TS_SUCCESS;
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}
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ts_bool poly_list_free(ts_poly_list *poly_list){
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ts_uint i;
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for(i=0;i<poly_list->n;i++){
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poly_free(poly_list->poly[i]);
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}
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free(poly_list->poly);
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free(poly_list);
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return TS_SUCCESS;
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}
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