From d67b15790456cc2e61a88a37c8de195062d19952 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sat, 4 Feb 2023 12:59:51 +0100
Subject: [PATCH] embeddings:: fixed animation facing in more cylinders

---
 embeddings.cpp |  1 +
 graph.cpp      | 10 +++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/embeddings.cpp b/embeddings.cpp
index c5999551..f0d58cb4 100644
--- a/embeddings.cpp
+++ b/embeddings.cpp
@@ -1022,6 +1022,7 @@ EX transmatrix xspinpush(ld dir, ld dist) {
 
 EX const transmatrix& lmirror() {
   if(cgi.emb->is_euc_in_product()) return Id;
+  if(cgi.emb->is_cylinder() && nil) return Id;
   if(cgi.emb->logical_to_intermediate[2][1]) return MirrorZ;
   if(cgi.emb->is_hyp_in_solnih()) return MirrorY;
   return Mirror;
diff --git a/graph.cpp b/graph.cpp
index a1c0741c..4b3be71c 100644
--- a/graph.cpp
+++ b/graph.cpp
@@ -2656,7 +2656,15 @@ EX bool applyAnimation(cell *c, shiftmatrix& V, double& footphase, int layer) {
       }
     footphase = a.footphase;
     V = V * a.wherenow * lrspintox(wnow);
-    if(cgi.emb->is_cylinder()) V = V * cspin90(1, 0);
+    if(cgi.emb->is_cylinder() && !gproduct) {
+      if(nil) {
+        V = V * lzpush(1);
+        V = V * spin270();
+        V = V * lzpush(-1);
+        }
+      else
+        V = V * cspin90(1, 0);
+      }
     if(a.mirrored) V = V * lmirror();
     if(a.attacking == 2) V = V * lpispin();
     a.ltick = ticks;