From aede7e0121a037fd7226a8bfd558eb21a932fa5a Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Wed, 14 Aug 2019 21:30:25 +0000
Subject: [PATCH] Added additional functions to ease Ulm2 poststating

---
 src/bond.c |   30 +++++++++++++++++++++++-------
 1 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/src/bond.c b/src/bond.c
index 289079a..21b7b56 100644
--- a/src/bond.c
+++ b/src/bond.c
@@ -1,3 +1,4 @@
+/* vim: set ts=4 sts=4 sw=4 noet : */
 #include<stdlib.h>
 #include "general.h"
 #include "vertex.h"
@@ -10,30 +11,45 @@
 }
 
 ts_bond  *bond_add(ts_bond_list *blist, ts_vertex *vtx1, ts_vertex *vtx2){
-    
+    ts_uint i;
     /* no vertices must be null! */
     if(vtx1==NULL || vtx2==NULL) return NULL;
-    /* TODO: Verify if the bond already exists... Don't do multiple bonds */
+    /* Verify if the bond already exists... Don't do multiple bonds */
+    for(i=0;i<blist->n;i++){
+       if((blist->bond[i]->vtx1==vtx1 || blist->bond[i]->vtx1==vtx2)
+        &&(blist->bond[i]->vtx2==vtx1 || blist->bond[i]->vtx2==vtx2))
+        return blist->bond[i];
+    }
 	blist->n++;
 	blist->bond=(ts_bond **)realloc(blist->bond,blist->n*sizeof(ts_bond *));
 	if(blist->bond==NULL) fatal("Cannot reallocate memory for additional **ts_bond.",100);
     blist->bond[blist->n-1]=(ts_bond *)malloc(sizeof(ts_bond));
     if(blist->bond[blist->n-1]==NULL) fatal("Cannot allocate memory for additional *ts_bond.",100);
-    blist->bond[blist->n-1]->data=(ts_bond_data *)malloc(sizeof(ts_bond_data));
     
 	//NOW insert vertices into data!	
-	blist->bond[blist->n - 1]->data->vtx1=vtx1;	
-	blist->bond[blist->n - 1]->data->vtx2=vtx2;
-
+	blist->bond[blist->n - 1]->vtx1=vtx1;	
+	blist->bond[blist->n - 1]->vtx2=vtx2;
+	blist->bond[blist->n - 1]->tainted=0;
+	blist->bond[blist->n - 1]->idx=blist->n-1;
     //Should we calculate bond length NOW?
 	
 	return blist->bond[blist->n-1];
 }
 
+
+ts_bool bond_vector(ts_bond *bond){
+	
+	bond->x = bond->vtx1->x - bond->vtx2->x;
+	bond->y = bond->vtx1->y - bond->vtx2->y;
+	bond->z = bond->vtx1->z - bond->vtx2->z;
+
+	return TS_SUCCESS;	
+}
+
+
 ts_bool bond_list_free(ts_bond_list *blist){
     ts_uint i;
     for(i=0;i<blist->n;i++){
-    free(blist->bond[i]->data);
     free(blist->bond[i]);
     }
     free(blist->bond);

--
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