From 319e316b55549e17a219524fdf87f23f96ba3602 Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Mon, 9 May 2022 15:58:36 +0200
Subject: [PATCH] nilrider:: fixed panning

---
 rogueviz/nilrider/planning.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/rogueviz/nilrider/planning.cpp b/rogueviz/nilrider/planning.cpp
index 70522d7f..aad98bf6 100644
--- a/rogueviz/nilrider/planning.cpp
+++ b/rogueviz/nilrider/planning.cpp
@@ -93,9 +93,13 @@ void level::compute_plan_transform() {
   plan_transform = sId * atscreenpos(cd->xcenter, cd->ycenter, pix * scale) * eupush(-(real_minx+real_maxx)/2, (real_miny+real_maxy)/2) * MirrorY;
   }
 
+bool restored = false;
+
 void level::draw_planning_screen() {
   if(just_refreshing) return;
 
+  restored = true;
+
   if(inHighQual) {
     new_levellines_for = mousept = current.where;
     }
@@ -233,7 +237,8 @@ bool level::handle_planning(int sym, int uni) {
         }
       else if(uni == '-' && holdmouse) {
         dynamicval<eGeometry> g(geometry, gEuclid);
-        plan_transform.T = plan_transform.T * eupush(mousept-mousept_drag);
+        if(restored) plan_transform.T = plan_transform.T * eupush(mousept-mousept_drag);
+        restored = false;
         return true;
         }
       return false;