pause game when steam overlay active

ianmaclarty · Jan 23, 2019 · 3ea0de3 · 3ea0de3
1 parent 910311e
commit 3ea0de3
Show file tree

Hide file tree

Showing 5 changed files with 44 additions and 1 deletion.
diff --git a/Common.mk b/Common.mk
@@ -165,6 +165,8 @@ else
       STEAMWORKS_LINK_OPT=-L$(BUILD_BIN_DIR) -lsteam_api 
       STEAMWORKS_LIB_DIR=$(THIRD_PARTY_DIR)/steamworks_sdk/redistributable_bin/osx32
       STEAMWORKS_INC_DIR=$(THIRD_PARTY_DIR)/steamworks_sdk/public
+      # steamworks api triggers this warning
+      XCFLAGS += -Wno-invalid-offsetof
   endif
 endif
 

diff --git a/src/am_audio.cpp b/src/am_audio.cpp
@@ -1599,7 +1599,14 @@ static void do_post_render(am_audio_context *context, int num_samples, am_audio_
 void am_fill_audio_bus(am_audio_bus *bus) {
     if (audio_context.root == NULL) return;
     if (!am_conf_audio_mute) {
-        audio_context.root->render_audio(&audio_context, bus);
+#if AM_STEAMWORKS
+        // mute audio if steam overlay shown
+        if (!am_steam_overlay_enabled) {
+#endif
+            audio_context.root->render_audio(&audio_context, bus);
+#if AM_STEAMWORKS
+        }
+#endif
     }
     audio_context.render_id++;
     do_post_render(&audio_context, bus->num_samples, audio_context.root);

diff --git a/src/am_backend_sdl.cpp b/src/am_backend_sdl.cpp
@@ -516,7 +516,13 @@ int main( int argc, char *argv[] )
         if (am_conf_fixed_delta_time > 0.0) {
             while (t_debt > 0.0) {
                 double t0 = am_get_current_time();
+#ifdef AM_STEAMWORKS
+                if (!am_steam_overlay_enabled) {
+#endif
                 am_execute_actions(L, am_conf_fixed_delta_time);
+#ifdef AM_STEAMWORKS
+                }
+#endif
                 double t = am_get_current_time() - t0;
                 t_debt -= am_max(t, am_conf_fixed_delta_time);
             }
@@ -525,7 +531,13 @@ int main( int argc, char *argv[] )
                 if (am_conf_delta_time_step > 0.0) {
                     t_debt = floor(t_debt / am_conf_delta_time_step + 0.5) * am_conf_delta_time_step;
                 }
+#ifdef AM_STEAMWORKS
+                if (!am_steam_overlay_enabled) {
+#endif
                 am_execute_actions(L, t_debt);
+#ifdef AM_STEAMWORKS
+                }
+#endif
                 t_debt = 0.0;
             }
         }

diff --git a/src/am_steamworks.cpp b/src/am_steamworks.cpp
@@ -4,6 +4,8 @@
 
 #include <list>
 
+bool am_steam_overlay_enabled = false;
+
 enum AMSteamLeaderboardQueryType {
     AM_STEAM_GLOBAL,
     AM_STEAM_GLOBAL_NEIGHBOURHOOD,
@@ -221,6 +223,20 @@ struct leaderboard_neighbourhood_request {
     }
 };
 
+struct overlay_listener_t { 
+    STEAM_CALLBACK( overlay_listener_t, OnGameOverlayActivated, GameOverlayActivated_t ); 
+}; 
+
+void overlay_listener_t::OnGameOverlayActivated( GameOverlayActivated_t* pCallback ) { 
+    if ( pCallback->m_bActive ) {
+        am_steam_overlay_enabled = true;
+    } else {
+        am_steam_overlay_enabled = false;
+    }
+}
+
+static overlay_listener_t *overlay_listener = NULL;
+
 static bool steam_initialized = false;
 
 static void amSteamSubmitScore(lua_State *L, int func_ref, int score, const char *leaderboard) {
@@ -256,12 +272,17 @@ static void amSteamInit(lua_State *L) {
             steam_initialized = false;
             return;
         }
+        overlay_listener = new overlay_listener_t();
         g_L = L;
     }
 }
 
 void am_steam_teardown() {
     if (steam_initialized) {
+        if (overlay_listener != NULL) {
+            delete overlay_listener;
+            overlay_listener = NULL;
+        }
         for (std::list<leaderboard_neighbourhood_request*>::iterator it = neightbourhood_requests.begin(); it != neightbourhood_requests.end(); ++it) {
             (*it)->L = NULL;
         }

diff --git a/src/am_steamworks.h b/src/am_steamworks.h
@@ -3,4 +3,5 @@ void am_open_steamworks_module(lua_State *L);
 void am_steam_teardown();
 void am_steam_step();
 const char* am_get_steam_lang();
+extern bool am_steam_overlay_enabled;
 #endif