--- a/hedgewars/PascalExports.pas	Mon Sep 19 23:18:48 2011 +0200
+++ b/hedgewars/PascalExports.pas	Mon Sep 19 23:35:07 2011 +0200
@@ -36,6 +36,7 @@
 implementation
 {$IFDEF HWLIBRARY}
 var cZoomVal: GLfloat;
+    previousGameState: TGameState;
 
 // retrieve protocol information
 procedure HW_versionInfo(netProto: PLongInt; versionStr: PPChar); cdecl; export;
@@ -184,6 +185,17 @@
     exit( isPaused );
 end;
 
+procedure HW_suspend; cdecl; export;
+begin
+    previousGameState:= GameState;
+    GameState:= gsSuspend;
+end;
+
+procedure HW_resume; cdecl; export;
+begin
+    GameState:= previousGameState;
+end;
+
 // equivalent to esc+y; when closeFrontend = true the game exits after memory cleanup
 procedure HW_terminate(closeFrontend: boolean); cdecl; export;
 begin

--- a/hedgewars/hwengine.pas	Mon Sep 19 23:18:48 2011 +0200
+++ b/hedgewars/hwengine.pas	Mon Sep 19 23:35:07 2011 +0200
@@ -100,6 +100,7 @@
         gsExit: begin
                 isTerminated:= true;
                 end;
+        gsSuspend: exit;
         end;
 
 {$IFDEF SDL13}
@@ -158,11 +159,11 @@
     while isTerminated = false do
     begin
         SDL_PumpEvents();
-        {$IFDEF SDL13}
+{$IFDEF SDL13}
         while SDL_PeepEvents(@event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT) > 0 do
-        {$ELSE}
+{$ELSE}
         while SDL_PeepEvents(@event, 1, SDL_GETEVENT, SDL_ALLEVENTS) > 0 do
-        {$ENDIF}
+{$ENDIF}
         begin
             case event.type_ of
                 SDL_KEYDOWN: if GameState = gsChat then

--- a/hedgewars/uTypes.pas	Mon Sep 19 23:18:48 2011 +0200
+++ b/hedgewars/uTypes.pas	Mon Sep 19 23:35:07 2011 +0200
@@ -36,7 +36,7 @@
         end;
 
     // Possible states of the game
-    TGameState = (gsLandGen, gsStart, gsGame, gsChat, gsConfirm, gsExit);
+    TGameState = (gsLandGen, gsStart, gsGame, gsChat, gsConfirm, gsExit, gsSuspend);
 
     // Game types that help determining what the engine is actually supposed to do
     TGameType = (gmtLocal, gmtDemo, gmtNet, gmtSave, gmtLandPreview, gmtSyntax);

--- a/project_files/HedgewarsMobile/Classes/HedgewarsAppDelegate.m	Mon Sep 19 23:18:48 2011 +0200
+++ b/project_files/HedgewarsMobile/Classes/HedgewarsAppDelegate.m	Mon Sep 19 23:35:07 2011 +0200
@@ -133,12 +133,19 @@
     // don't clean mainMenuViewController here!!!
 }
 
+// true multitasking with sdl works only on 4.2 and above; we close the game to avoid a black screen at return
 -(void) applicationWillResignActive:(UIApplication *)application {
-    // true multitasking with sdl works only on 4.2 and above; we close the game to avoid a black screen at return
-    if (self.isInGame && ([[[UIDevice currentDevice] systemVersion] floatValue] < 4.2f))
-        HW_terminate(NO);
+    if (self.isInGame)
+        if ([[[UIDevice currentDevice] systemVersion] floatValue] < 4.2f)
+            HW_terminate(NO);
+        else
+            HW_suspend();
     [super applicationWillResignActive:application];
 }
 
+-(void) applicationDidBecomeActive:(UIApplication *)application {
+    HW_resume();
+    [super applicationDidBecomeActive:application];
+}
 
 @end