Add mute setting (toggled by the mute key and in the volume menu) (#6415)

* Add mute setting (toggled by the mute key and in the volume menu)

3 files changed, 68 insertions, 34 deletions

diff --git a/src/defaultsettings.cpp b/src/defaultsettings.cpp
index 5bba3bc80..3c826dd2e 100644
--- a/src/defaultsettings.cpp
+++ b/src/defaultsettings.cpp
@@ -37,6 +37,7 @@ void set_default_settings(Settings *settings)
 	settings->setDefault("address", "");
 	settings->setDefault("enable_sound", "true");
 	settings->setDefault("sound_volume", "0.8");
+	settings->setDefault("mute_sound", "false");
 	settings->setDefault("enable_mesh_cache", "false");
 	settings->setDefault("mesh_generation_interval", "0");
 	settings->setDefault("meshgen_block_cache_size", "20");
diff --git a/src/game.cpp b/src/game.cpp
index d85e34d35..7d4dd0e04 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -2553,14 +2553,12 @@ void Game::processKeyInput()
 	} else if (wasKeyDown(KeyType::NOCLIP)) {
 		toggleNoClip();
 	} else if (wasKeyDown(KeyType::MUTE)) {
-		float volume = g_settings->getFloat("sound_volume");
-		if (volume < 0.001f) {
-			g_settings->setFloat("sound_volume", 1.0f);
-			showStatusTextSimple("Volume changed to 100%");
-		} else {
-			g_settings->setFloat("sound_volume", 0.0f);
-			showStatusTextSimple("Volume changed to 0%");
-		}
+		bool new_mute_sound = !g_settings->getBool("mute_sound");
+		g_settings->setBool("mute_sound", new_mute_sound);
+		if (new_mute_sound)
+			showStatusTextSimple("Sound muted");
+		else
+			showStatusTextSimple("Sound unmuted");
 		runData.statustext_time = 0;
 	} else if (wasKeyDown(KeyType::INC_VOLUME)) {
 		float new_volume = rangelim(g_settings->getFloat("sound_volume") + 0.1f, 0.0f, 1.0f);
@@ -3558,13 +3556,18 @@ void Game::updateSound(f32 dtime)
 			      camera->getDirection(),
 			      camera->getCameraNode()->getUpVector());
 
-	// Check if volume is in the proper range, else fix it.
-	float old_volume = g_settings->getFloat("sound_volume");
-	float new_volume = rangelim(old_volume, 0.0f, 1.0f);
-	sound->setListenerGain(new_volume);
+	bool mute_sound = g_settings->getBool("mute_sound");
+	if (mute_sound) {
+		sound->setListenerGain(0.0f);
+	} else {
+		// Check if volume is in the proper range, else fix it.
+		float old_volume = g_settings->getFloat("sound_volume");
+		float new_volume = rangelim(old_volume, 0.0f, 1.0f);
+		sound->setListenerGain(new_volume);
 
-	if (old_volume != new_volume) {
-		g_settings->setFloat("sound_volume", new_volume);
+		if (old_volume != new_volume) {
+			g_settings->setFloat("sound_volume", new_volume);
+		}
 	}
 
 	LocalPlayer *player = client->getEnv().getLocalPlayer();
diff --git a/src/guiVolumeChange.cpp b/src/guiVolumeChange.cpp
index c7868ad35..8c462312b 100644
--- a/src/guiVolumeChange.cpp
+++ b/src/guiVolumeChange.cpp
@@ -33,6 +33,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 const int ID_soundText = 263;
 const int ID_soundExitButton = 264;
 const int ID_soundSlider = 265;
+const int ID_soundMuteButton = 266;
 
 GUIVolumeChange::GUIVolumeChange(gui::IGUIEnvironment* env,
 		gui::IGUIElement* parent, s32 id,
@@ -85,7 +86,7 @@ void GUIVolumeChange::regenerateGui(v2u32 screensize)
 	*/
 	{
 		core::rect<s32> rect(0, 0, 160, 20);
-		rect = rect + v2s32(size.X / 2 - 80, size.Y / 2 - 35);
+		rect = rect + v2s32(size.X / 2 - 80, size.Y / 2 - 70);
 
 		const wchar_t *text = wgettext("Sound Volume: ");
 		core::stringw volume_text = text;
@@ -105,12 +106,20 @@ void GUIVolumeChange::regenerateGui(v2u32 screensize)
 	}
 	{
 		core::rect<s32> rect(0, 0, 300, 20);
-		rect = rect + v2s32(size.X/2-150, size.Y/2);
+		rect = rect + v2s32(size.X / 2 - 150, size.Y / 2);
 		gui::IGUIScrollBar *e = Environment->addScrollBar(true,
 			rect, this, ID_soundSlider);
 		e->setMax(100);
 		e->setPos(volume);
 	}
+	{
+		core::rect<s32> rect(0, 0, 160, 20);
+		rect = rect + v2s32(size.X / 2 - 80, size.Y / 2 - 35);
+		const wchar_t *text = wgettext("Muted");
+		Environment->addCheckBox(g_settings->getBool("mute_sound"), rect, this,
+				ID_soundMuteButton, text);
+		delete[] text;
+	}
 }
 
 void GUIVolumeChange::drawMenu()
@@ -136,29 +145,50 @@ bool GUIVolumeChange::OnEvent(const SEvent& event)
 			quitMenu();
 			return true;
 		}
-	}
-
-	if (event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) {
-		if (event.GUIEvent.Caller->getID() == ID_soundExitButton) {
-			quitMenu();
+	} else if (event.EventType == EET_GUI_EVENT) {
+		if (event.GUIEvent.EventType == gui::EGET_CHECKBOX_CHANGED) {
+			gui::IGUIElement *e = getElementFromId(ID_soundMuteButton);
+			if (e != NULL && e->getType() == gui::EGUIET_CHECK_BOX) {
+				g_settings->setBool("mute_sound", ((gui::IGUICheckBox*)e)->isChecked());
+			}
+
+			Environment->setFocus(this);
 			return true;
 		}
-	}
 
-	if (event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED) {
-		if (event.GUIEvent.Caller->getID() == ID_soundSlider) {
-			s32 pos = ((gui::IGUIScrollBar*)event.GUIEvent.Caller)->getPos();
-			g_settings->setFloat("sound_volume", (float) pos / 100);
-
-			gui::IGUIElement *e = getElementFromId(ID_soundText);
-			const wchar_t *text = wgettext("Sound Volume: ");
-			core::stringw volume_text = text;
-			delete [] text;
+		if (event.GUIEvent.EventType == gui::EGET_BUTTON_CLICKED) {
+			if (event.GUIEvent.Caller->getID() == ID_soundExitButton) {
+				quitMenu();
+				return true;
+			}
+			Environment->setFocus(this);
+		}
 
-			volume_text += core::stringw(pos) + core::stringw("%");
-			e->setText(volume_text.c_str());
-			return true;
+		if (event.GUIEvent.EventType == gui::EGET_ELEMENT_FOCUS_LOST
+				&& isVisible()) {
+			if (!canTakeFocus(event.GUIEvent.Element)) {
+				dstream << "GUIMainMenu: Not allowing focus change."
+				<< std::endl;
+				// Returning true disables focus change
+				return true;
+			}
+		}
+		if (event.GUIEvent.EventType == gui::EGET_SCROLL_BAR_CHANGED) {
+			if (event.GUIEvent.Caller->getID() == ID_soundSlider) {
+				s32 pos = ((gui::IGUIScrollBar*)event.GUIEvent.Caller)->getPos();
+				g_settings->setFloat("sound_volume", (float) pos / 100);
+
+				gui::IGUIElement *e = getElementFromId(ID_soundText);
+				const wchar_t *text = wgettext("Sound Volume: ");
+				core::stringw volume_text = text;
+				delete [] text;
+
+				volume_text += core::stringw(pos) + core::stringw("%");
+				e->setText(volume_text.c_str());
+				return true;
+			}
 		}
+
 	}
 
 	return Parent ? Parent->OnEvent(event) : false;