From 45a1a31f0858196481e4f1eca80edb4698fedaa4 Mon Sep 17 00:00:00 2001
From: Ryan Herriman <rherriman@gmail.com>
Date: Mon, 4 Dec 2023 21:06:00 -0700
Subject: [PATCH] Hide invisible fields from level previews

---
 levels/avaraline-strict-mode/alf/bwadi-koth.alf            | 1 -
 levels/avaraline-strict-mode/alf/stratocaster-hss-koth.alf | 1 -
 levels/avaraline-strict-mode/alf/telecaster-captures.alf   | 1 -
 src/game/CForceField.cpp                                   | 5 +++++
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/levels/avaraline-strict-mode/alf/bwadi-koth.alf b/levels/avaraline-strict-mode/alf/bwadi-koth.alf
index 00d3cf33e..0b8fdff4d 100644
--- a/levels/avaraline-strict-mode/alf/bwadi-koth.alf
+++ b/levels/avaraline-strict-mode/alf/bwadi-koth.alf
@@ -12,7 +12,6 @@
     pHillW="hillSize"
     pHillD="hillSize"
     pHillH="4"
-    wallYon="0.001"
   />
   <include alf="logic/koth.alf" />
 </map>
diff --git a/levels/avaraline-strict-mode/alf/stratocaster-hss-koth.alf b/levels/avaraline-strict-mode/alf/stratocaster-hss-koth.alf
index cfd01311c..fa67a82b2 100644
--- a/levels/avaraline-strict-mode/alf/stratocaster-hss-koth.alf
+++ b/levels/avaraline-strict-mode/alf/stratocaster-hss-koth.alf
@@ -11,7 +11,6 @@
     pHillW="hillSize"
     pHillD="hillSize"
     pHillH="4"
-    wallYon="0.001"
   />
   <include alf="logic/koth.alf" />
 </map>
diff --git a/levels/avaraline-strict-mode/alf/telecaster-captures.alf b/levels/avaraline-strict-mode/alf/telecaster-captures.alf
index 958226cb2..2452a13e9 100644
--- a/levels/avaraline-strict-mode/alf/telecaster-captures.alf
+++ b/levels/avaraline-strict-mode/alf/telecaster-captures.alf
@@ -12,7 +12,6 @@
     outerCaptureX="24"
     outerCaptureY="10"
     outerCaptureZ="39"
-    wallYon="0.001"
   />
 
   <set
diff --git a/src/game/CForceField.cpp b/src/game/CForceField.cpp
index 349d4b009..28d9e2bd9 100644
--- a/src/game/CForceField.cpp
+++ b/src/game/CForceField.cpp
@@ -77,6 +77,11 @@ CAbstractActor *CForceField::EndScript() {
         }
 
         partList[0]->isTransparent = !ReadLongVar(iVisible);
+        if (!ReadLongVar(iVisible)) {
+            // Force yon when visible is false, to hide from level previews.
+            partList[0]->yon = FIX(0.001);
+            partList[0]->usesPrivateYon = true;
+        }
 
         exitMsg = ReadLongVar(iExit);
         enterMsg = ReadLongVar(iEnter);