From 6f412df2327174b4c2f1e36007d6dbf79376bb7e Mon Sep 17 00:00:00 2001
From: krzys-h <krzys_h@interia.pl>
Date: Mon, 4 Jul 2016 17:02:39 +0200
Subject: [PATCH] Fixed lockups when calling StartSuspend multiple times

---
 src/level/robotmain.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/level/robotmain.cpp b/src/level/robotmain.cpp
index 36ee5031..2aab95c9 100644
--- a/src/level/robotmain.cpp
+++ b/src/level/robotmain.cpp
@@ -1554,11 +1554,13 @@ char* CRobotMain::GetDisplayInfoName(int index)
 //! Beginning of a dialogue during the game
 void CRobotMain::StartSuspend()
 {
+    if (m_suspend != nullptr) return; // already suspended
     if (!IsPhaseWithWorld(m_phase)) return;
+    GetLogger()->Info("Start suspend\n");
 
     m_sound->MuteAll(true);
     ClearInterface();
-    m_suspend = m_pause->ActivatePause(PAUSE_ENGINE|PAUSE_HIDE_SHORTCUTS|PAUSE_MUTE_SOUND|PAUSE_CAMERA);
+    m_suspend = m_pause->ActivatePause(PAUSE_ENGINE | PAUSE_HIDE_SHORTCUTS | PAUSE_MUTE_SOUND | PAUSE_CAMERA);
     m_engine->SetOverFront(false);  // over flat behind
     CreateShortcuts();
 
@@ -1572,6 +1574,9 @@ void CRobotMain::StartSuspend()
 //! End of dialogue during the game
 void CRobotMain::StopSuspend()
 {
+    if (m_suspend == nullptr) return; // not suspended
+    GetLogger()->Info("Stop suspend\n");
+
     m_sound->MuteAll(false);
     ClearInterface();
     m_pause->DeactivatePause(m_suspend);
@@ -1579,7 +1584,7 @@ void CRobotMain::StopSuspend()
     m_engine->SetOverFront(true);  // over flat front
     CreateShortcuts();
 
-    if(m_infoObject != nullptr)
+    if (m_infoObject != nullptr)
         SelectObject(m_infoObject, false);  // gives the command buttons
     m_map->ShowMap(m_mapShow);
     m_displayText->HideText(false);