From 11d73bb65500c92b48e7a9340eeab07d2062bb1b Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Fri, 9 Jul 2021 10:10:44 +0200
Subject: [PATCH] reg3:: throw exceptions if not cubes

---
 reg3.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/reg3.cpp b/reg3.cpp
index c68dd192..32aeae05 100644
--- a/reg3.cpp
+++ b/reg3.cpp
@@ -288,6 +288,7 @@ EX namespace reg3 {
     }
 
   EX void generate_plain_subcubes() {
+    if(S7 != 6) throw hr_exception("generate_plain_subcubes but no cubes");
     auto& ssh = cgi.subshapes;
     const int sub = subcube_count;
     auto vx = abs(cgi.cellshape[0][0][0]);
@@ -372,6 +373,7 @@ EX namespace reg3 {
     }
   
   EX void generate_special_subcubes(bool bch) {
+    if(S7 != 6) throw hr_exception("generate_plain_subcubes but no cubes");
     const int sub = subcube_count;
     if(1) {
       auto vx = abs(cgi.cellshape[0][0][0]);