Pause the game while LoadSave window is open (#22084)

distribution/changelog.txt

@@ -11,6 +11,7 @@
 - Improved: [#21981] The map window now defaults to showing as much of the map as fits the screen.
 - Improved: [#21983] Taking a screenshot now shows a message again, closing when taking another.
 - Improved: [#22026] The options window now stays centred when window scaling is changed.
+- Improved: [#22084] The game now temporarily pauses while the load/save window is open.
 - Change: [#7248] Small mini-maps are now centred in the map window.
 - Change: [#20240] Heavy snow and blizzards now make guests buy and use umbrellas.
 - Change: [#21214] Wacky Worlds and Time Twister’s scenario names now match their park names.

src/openrct2-ui/windows/LoadSave.cpp

@@ -17,7 +17,9 @@
 #include <openrct2/FileClassifier.h>
 #include <openrct2/Game.h>
 #include <openrct2/GameState.h>
+#include <openrct2/OpenRCT2.h>
 #include <openrct2/PlatformEnvironment.h>
+#include <openrct2/audio/audio.h>
 #include <openrct2/config/Config.h>
 #include <openrct2/core/File.h>
 #include <openrct2/core/FileScanner.h>
@@ -26,6 +28,7 @@
 #include <openrct2/core/String.hpp>
 #include <openrct2/localisation/Formatter.h>
 #include <openrct2/localisation/Localisation.h>
+#include <openrct2/network/network.h>
 #include <openrct2/platform/Platform.h>
 #include <openrct2/rct2/T6Exporter.h>
 #include <openrct2/ride/TrackDesign.h>
@@ -676,6 +679,13 @@ static Widget window_loadsave_widgets[] =
             const bool isSave = (type & 0x01) == LOADSAVETYPE_SAVE;
             const auto path = GetDir(type);
 
+            // Pause the game if not on title scene, nor in network play.
+            if (!(gScreenFlags & SCREEN_FLAGS_TITLE_DEMO) && NetworkGetMode() == NETWORK_MODE_NONE)
+            {
+                gGamePaused |= GAME_PAUSED_MODAL;
+                Audio::StopAll();
+            }
+
             const char* pattern = GetFilterPatternByType(type, isSave);
             PopulateList(isSave, path, pattern);
             no_list_items = static_cast<uint16_t>(_listItems.size());
@@ -693,6 +703,13 @@ static Widget window_loadsave_widgets[] =
         {
             _listItems.clear();
             WindowCloseByClass(WindowClass::LoadsaveOverwritePrompt);
+
+            // Unpause the game if not on title scene, nor in network play.
+            if (!(gScreenFlags & SCREEN_FLAGS_TITLE_DEMO) && NetworkGetMode() == NETWORK_MODE_NONE)
+            {
+                gGamePaused &= ~GAME_PAUSED_MODAL;
+                Audio::Resume();
+            }
         }
 
         void OnResize() override