From c9fc591e9d4dca3b9a7be877fe8632cf12a875e9 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Sat, 14 Nov 2020 14:38:57 +0100
Subject: [PATCH] fixed the problem in nonisotropic shmup

---
 shmup.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/shmup.cpp b/shmup.cpp
index 3db3c7f5..dbfddd21 100644
--- a/shmup.cpp
+++ b/shmup.cpp
@@ -173,7 +173,14 @@ void fix_to_2(transmatrix& T) {
     for(int i=0; i<4; i++) T[i][2] = 0, T[2][i] = 0;
     T[2][2] = 1;
     }
-  fixmatrix(T);
+  if(nonisotropic) {
+    hyperpoint h = tC0(T);
+    transmatrix rot = gpushxto0(h) * T;
+    { dynamicval<eGeometry> g(geometry, gSphere); fixmatrix(rot); }
+    T = rgpushxto0(h) * rot;
+    }
+  else
+    fixmatrix(T);
   fixelliptic(T);
   }