Restored ambient sounds functionality

client/adventureMap/MapAudioPlayer.h

@@ -0,0 +1,71 @@
+/*
+ * MapAudioPlayer.h, part of VCMI engine
+ *
+ * Authors: listed in file AUTHORS in main folder
+ *
+ * License: GNU General Public License v2.0 or later
+ * Full text of license available in license.txt file, in main folder
+ *
+ */
+#pragma once
+
+#include "../mapView/IMapRendererObserver.h"
+
+VCMI_LIB_NAMESPACE_BEGIN
+class ObjectInstanceID;
+class CArmedInstance;
+VCMI_LIB_NAMESPACE_END
+
+class MapAudioPlayer : public IMapObjectObserver
+{
+	using MapObjectsList = std::vector<ObjectInstanceID>;
+
+	boost::multi_array<MapObjectsList, 3> objects;
+	const CArmedInstance * currentSelection = nullptr;
+	bool playerMakingTurn = false;
+	bool enemyMakingTurn = false;
+	bool audioPlaying = true;
+
+	void addObject(const CGObjectInstance * obj);
+	void removeObject(const CGObjectInstance * obj);
+
+	std::vector<std::string> getAmbientSounds(const int3 & tile);
+	void updateAmbientSounds();
+	void updateMusic();
+	void update();
+
+protected:
+	// IMapObjectObserver impl
+	bool hasOngoingAnimations() override;
+	void onObjectFadeIn(const CGObjectInstance * obj) override;
+	void onObjectFadeOut(const CGObjectInstance * obj) override;
+	void onObjectInstantAdd(const CGObjectInstance * obj) override;
+	void onObjectInstantRemove(const CGObjectInstance * obj) override;
+
+	void onHeroMoved(const CGHeroInstance * obj, const int3 & from, const int3 & dest) override;
+	void onAfterHeroTeleported(const CGHeroInstance * obj, const int3 & from, const int3 & dest) override;
+	void onAfterHeroEmbark(const CGHeroInstance * obj, const int3 & from, const int3 & dest) override;
+	void onAfterHeroDisembark(const CGHeroInstance * obj, const int3 & from, const int3 & dest) override;
+
+public:
+	MapAudioPlayer();
+	~MapAudioPlayer();
+
+	/// Called whenever current adventure map selection changes
+	void onSelectionChanged(const CArmedInstance * newSelection);
+
+	/// Called when local player starts his turn
+	void onPlayerTurnStarted();
+
+	/// Called when AI or non-local player start his turn
+	void onEnemyTurnStarted();
+
+	/// Called when local player ends his turn
+	void onPlayerTurnEnded();
+
+	/// Called when map audio should be paused, e.g. on combat or town scren access
+	void onAudioPaused();
+
+	/// Called when map audio should be resume, opposite to onPaused
+	void onAudioResumed();
+};