From 46d5a8759c64c51083386af0c03300c0fd666798 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Thu, 25 Aug 2022 23:39:55 -0500
Subject: [PATCH] GUI: fix some interpolate issues

---
 src/gui/editing.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/gui/editing.cpp b/src/gui/editing.cpp
index 1ca3ff691..391a39f62 100644
--- a/src/gui/editing.cpp
+++ b/src/gui/editing.cpp
@@ -616,9 +616,9 @@ void FurnaceGUI::doInterpolate() {
         }
       } else {
         for (int j=selStart.y; j<=selEnd.y; j++) {
-          if (pat->data[j][0]!=0 && pat->data[j][1]!=0) {
+          if (pat->data[j][0]!=0 || pat->data[j][1]!=0) {
             if (pat->data[j][0]!=100 && pat->data[j][0]!=101 && pat->data[j][0]!=102) {
-              points.emplace(points.end(),j,pat->data[j][0]+pat->data[j][1]*12);
+              points.emplace(points.end(),j,pat->data[j][0]+(signed char)pat->data[j][1]*12);
             }
           }
         }