From 881a0137b4009d1ebcce84b8fd8d533e6e0a0f30 Mon Sep 17 00:00:00 2001
From: Mathieu Schroeter <mathieu@schroetersa.ch>
Date: Tue, 26 Jun 2018 23:14:29 +0200
Subject: [PATCH] Disable smooth scroll with demos

It prevents lag and bad shift with mouse clicks.
---
 src/event.cxx | 11 ++++++++---
 src/event.h   |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/event.cxx b/src/event.cxx
index 3f55346..ebb7098 100644
--- a/src/event.cxx
+++ b/src/event.cxx
@@ -5107,6 +5107,10 @@ CEvent::DemoPlayStart (const std::string * demoFile)
     DemoPlayStop ();
     return false;
   }
+
+  this->m_scrollSpeedPrev = m_scrollSpeed;
+  this->m_scrollSpeed     = 3;
+
   ChangePhase (EV_PHASE_PLAY);
   InitRandom ();
   m_pDecor->SetTime (0);
@@ -5128,9 +5132,10 @@ CEvent::DemoPlayStop ()
 
   m_pDemoSDLBuffer.clear ();
 
-  m_bDemoPlay = false;
-  m_bDemoRec  = false;
-  m_demoTime  = 0;
+  m_bDemoPlay         = false;
+  m_bDemoRec          = false;
+  m_demoTime          = 0;
+  this->m_scrollSpeed = this->m_scrollSpeedPrev;
 
   ChangePhase (EV_PHASE_INIT);
 }
diff --git a/src/event.h b/src/event.h
index ce47479..be9ac5d 100644
--- a/src/event.h
+++ b/src/event.h
@@ -244,6 +244,7 @@ protected:
   bool                                     m_bHelp;
   bool                                     m_bAllMissions;
   Sint32                                   m_scrollSpeed;
+  Sint32                                   m_scrollSpeedPrev;
   bool                                     m_bPause;
   bool                                     m_bShift;
   Sint32                                   m_shiftPhase;