From be1e300d8dc122803d09a0552c229e0fb1e32cb5 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Mon, 28 Jan 2019 21:40:41 +0100
Subject: [PATCH] crystal:: ignore invisible floors in rug

---
 crystal.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crystal.cpp b/crystal.cpp
index e37826b5..be8431f3 100644
--- a/crystal.cpp
+++ b/crystal.cpp
@@ -897,6 +897,7 @@ void build_rugdata() {
   for(const auto& gp: gmatrix) {
             
     cell *c = gp.first;
+    if(c->wall == waInvisibleFloor) continue;
     const transmatrix& V = gp.second;
     
     rugpoint *v = addRugpoint(tC0(V), 0);