refactor: separate mob ans world listener

include/game/World.h

@@ -10,8 +10,6 @@
 #include "Mobs.h"
 #include "Team.h"
 
-#include "misc/ObjectNotifier.h"
-
 namespace td {
 namespace game {
 typedef std::pair<std::int16_t, std::int16_t> ChunkCoord;
@@ -127,15 +125,11 @@ public:
 
     virtual void OnArrowShot(MobPtr target, bool fire, Tower* shooter) {}
     virtual void OnExplosion(utils::shape::Circle explosion, float centerDamage, Tower* shooter) {}
-
-    virtual void OnMobDamage(MobPtr target, float damage, Tower* damager) {}
-
-    virtual void OnMobDead(MobPtr mob) {}
 };
 
 typedef utils::ObjectNotifier<WorldListener> WorldNotifier;
 
-class World : public WorldNotifier, public WorldListener {
+class World : public WorldListener, public MobListener {
 protected:
     TowerTileColorPalette m_TowerPlacePalette;
     Color m_WalkablePalette;
@@ -152,6 +146,9 @@ protected:
     TowerList m_Towers;
 
     Game* m_Game;
+
+    WorldNotifier m_WorldNotifier;
+    MobNotifier m_MobNotifier;
 public:
     World(Game* game);
 
@@ -211,6 +208,9 @@ public:
     const TowerList& getTowers() const { return m_Towers; };
     TowerPtr getTowerById(TowerID tower);
 
+    WorldNotifier& getWorldNotifier() { return m_WorldNotifier; }
+    MobNotifier& getMobNotifier() { return m_MobNotifier; }
+
     // WorldListener
 
     virtual void OnArcherTowerShot(MobPtr target, ArcherTower* shooter);
@@ -218,6 +218,8 @@ public:
     virtual void OnArrowShot(MobPtr target, bool fire, Tower* shooter);
     virtual void OnExplosion(utils::shape::Circle explosion, float centerDamage, Tower* shooter);
 
+    // MobListener
+
     virtual void OnMobDamage(MobPtr target, float damage, Tower* source);
 private:
     void moveMobs(std::uint64_t delta);