1 files changed, 7 insertions, 1 deletions
diff --git a/public/js/p5_custom.js b/public/js/p5_custom.js
index 2cf742b..19a8dd0 100644
--- a/public/js/p5_custom.js
+++ b/public/js/p5_custom.js
@@ -1,5 +1,5 @@
 
-draw_arrow=function(p,x1,y1,x2,y2,elt=null,canvas,skiparrow=false){
+draw_arrow=function(p,x1,y1,x2,y2,elt=null,canvas,skiparrow=false,flip=false){
     var offset=5
     
     // Reduce the length of the vector to have a better tip location
@@ -30,6 +30,12 @@ draw_arrow=function(p,x1,y1,x2,y2,elt=null,canvas,skiparrow=false){
         xfactor=1-yfactor
         justify=15
 
+        if(flip){
+            xfactor=-xfactor
+            yfactor=-yfactor
+        }
+            
+        
         if(angle>0){
             yfactor=-yfactor
         }