refactor: separate mob ans world listener

include/game/Mobs.h

@@ -4,6 +4,8 @@
 #include "Types.h"
 #include "Team.h"
 
+#include "misc/ObjectNotifier.h"
+
 #include <vector>
 #include <memory>
 
@@ -218,6 +220,18 @@ MobPtr createMob(MobID id, MobType type, std::uint8_t level, PlayerID sender);
 std::string getMobName(MobType type);
 }
 
+class MobListener {
+public:
+    virtual void OnMobSpawn(MobPtr mob) {}
+    virtual void OnMobDie(MobPtr mob) {}
+
+    virtual void OnMobDamage(MobPtr target, float damage, Tower* damager) {}
+
+    virtual void OnMobTouchCastle(MobPtr damager, TeamCastle* enemyCastle) {}
+    virtual void OnMobCastleDamage(MobPtr damager, TeamCastle* enemyCastle) {}
+};
+
+typedef utils::ObjectNotifier<MobListener> MobNotifier;
 
 } // namespace game
 } // namespace td

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);

src/game/Towers.cpp

@@ -213,7 +213,7 @@ void ArcherTower::tick(std::uint64_t delta, World* world) {
         std::uint8_t arrows = explosiveArrows ? 2 : getLevel().getLevel();
         for (MobPtr mob : world->getMobList()) {
             if (isMobInRange(mob)) {
-                world->notifyListeners(&WorldListener::OnArcherTowerShot, mob, this);
+                world->getWorldNotifier().notifyListeners(&WorldListener::OnArcherTowerShot, mob, this);
                 m_Timer.applyCooldown();
                 arrowsShot++;
                 if (arrowsShot >= arrows)
@@ -230,7 +230,7 @@ void IceTower::tick(std::uint64_t delta, World* world) {
             if (isMobInRange(mob)) {
                 mob->addEffect(EffectType::Slowness, 1, this);    // slowness for 1s every second
                 if (damage > 0)
-                    world->notifyListeners(&WorldListener::OnMobDamage, mob, damage, this);
+                    world->getMobNotifier().notifyListeners(&MobListener::OnMobDamage, mob, damage, this);
                 m_Timer.applyCooldown();
             }
         }
@@ -253,7 +253,7 @@ void PoisonTower::tick(std::uint64_t delta, World* world) {
         for (MobPtr mob : world->getMobList()) {
             if (isMobInRange(mob)) {
                 if (getLevel().getPath() == TowerPath::Bottom) {
-                    world->notifyListeners(&WorldListener::OnMobDamage, mob, getStats()->getDamage(), this);
+                    world->getMobNotifier().notifyListeners(&MobListener::OnMobDamage, mob, getStats()->getDamage(), this);
                 } else {
                     float durationSec;
                     switch (getLevel().getLevel()) {

src/game/World.cpp

@@ -13,7 +13,8 @@ namespace td {
 namespace game {
 
 World::World(Game* game) : m_Game(game) {
-    bindListener(this);
+    getWorldNotifier().bindListener(this);
+    getMobNotifier().bindListener(this);
 }
 
 TilePtr World::getTile(std::int32_t x, std::int32_t y) const {
@@ -413,14 +414,14 @@ void World::OnArcherTowerShot(MobPtr target, ArcherTower* shooter) {
     bool fireArrows = shooter->getLevel().getPath() == TowerPath::Bottom;
     bool explosiveArrows = shooter->getLevel().getLevel() == 4 && fireArrows;
 
-    notifyListeners(&WorldListener::OnArrowShot, target, fireArrows, shooter);
+    getWorldNotifier().notifyListeners(&WorldListener::OnArrowShot, target, fireArrows, shooter);
     if (explosiveArrows) {
-        notifyListeners(&WorldListener::OnExplosion, utils::shape::Circle{ target->getCenterX(), target->getCenterY(), ArcherTower::ExplosionRadius }, shooter->getStats()->getDamage(), shooter);
+        getWorldNotifier().notifyListeners(&WorldListener::OnExplosion, utils::shape::Circle{ target->getCenterX(), target->getCenterY(), ArcherTower::ExplosionRadius }, shooter->getStats()->getDamage(), shooter);
     }
 }
 
 void World::OnArrowShot(MobPtr target, bool fireArrow, Tower* shooter) {
-    notifyListeners(&WorldListener::OnMobDamage, target, shooter->getStats()->getDamage(), shooter);
+    getMobNotifier().notifyListeners(&MobListener::OnMobDamage, target, shooter->getStats()->getDamage(), shooter);
     if (fireArrow) {
         target->addEffect(EffectType::Fire, ArcherTower::FireDurationSec, shooter);
     }
@@ -431,7 +432,7 @@ void World::OnExplosion(utils::shape::Circle explosion, float centerDamage, Towe
         if (mob->isAlive() && mob->collidesWith(explosion)) {
             // linear distance damage reduction
             float explosionDamage = mob->distance(explosion) / explosion.getRadius() * centerDamage;
-            notifyListeners(&WorldListener::OnMobDamage, mob, explosionDamage, shooter);
+            getMobNotifier().notifyListeners(&MobListener::OnMobDamage, mob, explosionDamage, shooter);
         }
     }
 }
@@ -439,7 +440,7 @@ void World::OnExplosion(utils::shape::Circle explosion, float centerDamage, Towe
 void World::OnMobDamage(MobPtr target, float damage, Tower* source) {
     target->damage(damage, source);
     if (target->isDead()) {
-        notifyListeners(&WorldListener::OnMobDead, target);
+        getMobNotifier().notifyListeners(&MobListener::OnMobDie, target);
     }
 }
 

src/game/client/WorldClient.cpp

@@ -37,14 +37,14 @@ void WorldClient::HandlePacket(const protocol::UpgradeTowerPacket* packet) {
 void WorldClient::HandlePacket(const protocol::WorldAddTowerPacket* packet) {
     game::TowerPtr newTower = placeTowerAt(packet->getTowerID(), packet->getTowerType(), packet->getTowerX(), packet->getTowerY(), packet->getBuilder());
 
-    notifyListeners(&WorldListener::OnTowerAdd, newTower);
+    getWorldNotifier().notifyListeners(&WorldListener::OnTowerAdd, newTower);
 }
 
 void WorldClient::HandlePacket(const protocol::RemoveTowerPacket* packet) {
     game::TowerPtr tower = removeTower(packet->getTowerID());
 
     if (tower != nullptr) {
-        notifyListeners(&WorldListener::OnTowerRemove, tower);
+        getWorldNotifier().notifyListeners(&WorldListener::OnTowerRemove, tower);
     }
 }
 

src/game/server/ServerConnexion.cpp

@@ -160,7 +160,7 @@ void ServerConnexion::HandlePacket(const protocol::PlaceTowerPacket* packet) {
 
     game::TowerPtr tower = world->placeTowerAt(towerType, packet->getTowerX(), packet->getTowerY(), m_ID);
 
-    world->notifyListeners(&game::WorldListener::OnTowerAdd, tower);
+    world->getWorldNotifier().notifyListeners(&game::WorldListener::OnTowerAdd, tower);
 
     protocol::WorldAddTowerPacket addTowerPacket(tower->getID(), packet->getTowerX(), packet->getTowerY(), packet->getTowerType(), m_ID);
     m_Server->broadcastPacket(&addTowerPacket);

src/render/WorldRenderer.cpp

@@ -37,7 +37,7 @@ WorldRenderer::WorldRenderer(game::World* world, client::ClientGame* client) : m
     m_Renderer->setCamMovement({});
     m_TowerPlacePopup = std::make_unique<gui::TowerPlacePopup>(m_Client->getClient());
     m_MobTooltip = std::make_unique<gui::MobTooltip>(m_Client->getClient());
-    m_Client->getWorld().bindListener(this);
+    m_Client->getWorld().getWorldNotifier().bindListener(this);
 }
 
 void WorldRenderer::updateCursorPos() {