stats: fix game hanging if exited during stats or credits

Resolves #1585.

docs/tr2/CHANGELOG.md

@@ -19,6 +19,7 @@
 - fixed the dragon reviving itself after Lara removes the dagger in rare circumstances (#1572)
 - fixed grenades counting as double kills in the game statistics (#1560)
 - fixed the ammo counter being hidden while a demo plays in NG+ (#1559)
+- fixed the game hanging if exited during the level stats, credits, or final stats (#1585)
 
 ## [0.5](https://github.com/LostArtefacts/TRX/compare/afaf12a...tr2-0.5) - 2024-10-08
 - added `/sfx` command

docs/tr2/README.md

@@ -32,6 +32,7 @@ decompilation process. We recognize that there is much work to be done.
 - fixed the dragon reviving itself after Lara removes the dagger in rare circumstances
 - fixed grenades counting as double kills in the game statistics
 - fixed the ammo counter being hidden while a demo plays in NG+
+- fixed the game hanging if exited during the level stats, credits, or final stats
 
 #### Visuals
 

src/tr2/decomp/decomp.c

@@ -2816,6 +2816,10 @@ void __cdecl S_Wait(int32_t frames, const BOOL input_check)
                 passed = Sync();
             } while (!passed);
             frames -= passed;
+
+            if (g_IsGameToExit) {
+                break;
+            }
         }
     }
 
@@ -2830,6 +2834,10 @@ void __cdecl S_Wait(int32_t frames, const BOOL input_check)
             passed = Sync();
         } while (!passed);
         frames -= passed;
+
+        if (g_IsGameToExit) {
+            break;
+        }
     }
 }
 

src/tr2/decomp/stats.c

@@ -323,6 +323,10 @@ int32_t __cdecl LevelStats(const int32_t level_num)
 
         Input_Update();
 
+        if (g_IsGameToExit) {
+            break;
+        }
+
         if (g_GF_OverrideDir != (GAME_FLOW_DIR)-1) {
             break;
         }
@@ -369,6 +373,10 @@ int32_t __cdecl GameStats(const int32_t level_num)
 
         Input_Update();
 
+        if (g_IsGameToExit) {
+            break;
+        }
+
         if (g_GF_OverrideDir != (GAME_FLOW_DIR)-1) {
             break;
         }

src/tr2/game/shell.c

@@ -2,6 +2,7 @@
 
 #include "config.h"
 #include "decomp/decomp.h"
+#include "game/background.h"
 #include "game/console/common.h"
 #include "game/demo.h"
 #include "game/game_string.h"
@@ -169,7 +170,8 @@ void __cdecl Shell_Shutdown(void)
     GameString_Shutdown();
     Console_Shutdown();
     WinInFinish();
-    RenderFinish(true);
+    BGND_Free();
+    RenderFinish(false);
     WinVidFinish();
     WinVidHideGameWindow();
     Text_Shutdown();