chore: bump version to alpha-0.0.5

include/game/BaseGame.h

@@ -46,8 +46,8 @@ public:
     const PlayerList& getPlayers() const { return m_Players; }
     PlayerList& getPlayers() { return m_Players; }
 
-    const Player& getPlayerById(PlayerID id) const { return m_Players.find(id)->second; }
-    Player& getPlayerById(PlayerID id) { return m_Players.find(id)->second; }
+    const Player* getPlayerById(PlayerID id) const;
+    Player* getPlayerById(PlayerID id);
 
 };
 

include/game/Mobs.h

@@ -4,6 +4,8 @@
 #include "Types.h"
 #include "Team.h"
 
+#include "misc/ObjectNotifier.h"
+
 #include <vector>
 #include <memory>
 
@@ -12,6 +14,8 @@
 namespace td {
 namespace game {
 
+struct WalkableTile;
+
 enum class EffectType : std::uint8_t {
     Slowness = 0,
     Stun,
@@ -69,7 +73,7 @@ public:
 struct EffectDuration {
     EffectType type;
     float duration; // in seconds
-    const Tower* tower; // the tower that gived the effect
+    Tower* tower; // the tower that gived the effect
 };
 
 const MobStats* getMobStats(MobType type, std::uint8_t level);
@@ -86,22 +90,24 @@ private:
     Direction m_Direction;
     std::vector<EffectDuration> m_Effects;
     const Tower* m_LastDamage;   // the last tower that damaged the mob
-    bool m_HasReachedCastle; // if true, no need to walk anymore
 
     utils::Timer m_EffectFireTimer;
     utils::Timer m_EffectPoisonTimer;
     utils::Timer m_EffectHealTimer;
 
+    TeamCastle* m_CastleTarget;
+    utils::CooldownTimer m_AttackTimer;
+
 public:
     Mob(MobID id, MobLevel level, PlayerID sender) : m_Sender(sender), m_Level(level),
-        m_HasReachedCastle(false), m_EffectFireTimer(1000), m_EffectPoisonTimer(1000),
-        m_EffectHealTimer(1000) {
+        m_EffectFireTimer(1000), m_EffectPoisonTimer(1000),
+        m_EffectHealTimer(1000), m_CastleTarget(nullptr), m_AttackTimer(1000) {
 
     }
 
     virtual MobType getType() const = 0;
 
-    virtual void tick(std::uint64_t delta);
+    virtual void tick(std::uint64_t delta, World* world);
 
     virtual bool OnDeath(World* world) { return true; }
 
@@ -114,16 +120,16 @@ public:
     bool isDead() const { return m_Health <= 0; }
     bool isAlive() const { return m_Health > 0; }
     const Tower* getLastDamageTower() { return m_LastDamage; }
-    bool hasReachedEnemyCastle() { return m_HasReachedCastle; }
+    bool hasReachedEnemyCastle() { return m_CastleTarget != nullptr; }
 
     void damage(float dmg, const Tower* damager) { m_Health = std::max(0.0f, m_Health - dmg); m_LastDamage = damager; }
     void heal(float heal) { m_Health = std::min(static_cast<float>(getStats()->getMaxLife()), m_Health + heal); }
-    void setMobReachedCastle() { m_HasReachedCastle = true; } // used when mob is in front of the castle
+    void setMobReachedCastle(TeamCastle* castle) { m_CastleTarget = castle; } // used when mob is in front of the castle
 
     bool isImmuneTo(TowerType type);
 
     bool isImmuneTo(EffectType type);
-    void addEffect(EffectType type, float durationSec, const Tower* tower);
+    void addEffect(EffectType type, float durationSec, Tower* tower);
     bool hasEffect(EffectType type);
 
     float getTileX() { return getCenterX() - static_cast<float>(static_cast<std::int32_t>(getCenterX())); } // returns a float between 0 and 1 excluded
@@ -137,7 +143,13 @@ protected:
         setSize(getStats()->getSize().x, getStats()->getSize().y);
     }
 private:
-    void updateEffects(std::uint64_t delta);
+    void updateEffects(std::uint64_t delta, World* world);
+    void attackCastle(std::uint64_t delta, World* world);
+    void move(std::uint64_t delta, World* world);
+    void walk(std::uint64_t delta, World* world);
+    void moveBack(const TeamCastle& castle, World* world);
+    void changeDirection(const WalkableTile& tile, World* world);
+    bool isTouchingCastle(const TeamCastle& castle) const;
     EffectDuration& getEffect(EffectType type);
 };
 
@@ -218,6 +230,18 @@ MobPtr createMob(MobID id, MobType type, std::uint8_t level, PlayerID sender);
 std::string getMobName(MobType type);
 }
 
+class MobListener {
+public:
+    virtual void OnMobSpawn(Mob* mob) {}
+    virtual void OnMobDie(Mob* mob) {}
+
+    virtual void OnMobDamage(Mob* target, float damage, Tower* damager) {}
+
+    virtual void OnMobTouchCastle(Mob* damager, TeamCastle* enemyCastle) {}
+    virtual void OnMobCastleDamage(Mob* damager, TeamCastle* enemyCastle, float damage) {}
+};
+
+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 +208,11 @@ public:
     const TowerList& getTowers() const { return m_Towers; };
     TowerPtr getTowerById(TowerID tower);
 
+    const Player* getPlayerById(PlayerID id) const;
+
+    WorldNotifier& getWorldNotifier() { return m_WorldNotifier; }
+    MobNotifier& getMobNotifier() { return m_MobNotifier; }
+
     // WorldListener
 
     virtual void OnArcherTowerShot(MobPtr target, ArcherTower* shooter);
@@ -218,13 +220,13 @@ 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* source);
+    // MobListener
+
+    virtual void OnMobDamage(Mob* target, float damage, Tower* source);
+    virtual void OnMobDie(Mob* mob);
+    virtual void OnMobCastleDamage(Mob* damager, TeamCastle* enemyCastle, float damage);
+
 private:
-    void moveMobs(std::uint64_t delta);
-    void moveMob(MobPtr mob, std::uint64_t delta);
-    void moveBackMob(MobPtr mob, const TeamCastle& castle);
-    void changeMobDirection(MobPtr mob, WalkableTilePtr tile);
-    bool isMobTouchingCastle(MobPtr mob, const TeamCastle& castle) const;
     void tickMobs(std::uint64_t delta);
     void cleanDeadMobs();
 };

include/misc/Time.h

@@ -53,7 +53,7 @@ public:
     std::uint64_t getInterval() const { return m_Interval; }
 };
 
-// utililty class to call function at regular period of time with a cooldown (used for towers)
+// utililty class to call function at regular period of time with a cooldown (used for towers and mobs )
 class CooldownTimer {
 private:
     std::uint64_t m_Cooldown; // in millis

include/updater/Updater.h

@@ -4,7 +4,7 @@
 
 #include <ctime>
 
-#define TD_VERSION "alpha-0.0.4"
+#define TD_VERSION "alpha-0.0.5"
 
 namespace td {
 namespace utils {

src/TowerDefense.cpp

@@ -20,8 +20,10 @@ extern "C"
 #endif
 
 int main(int argc, const char* args[]) {
+    #if !defined(NDEBUG)
     // setup signal handling
     backward::SignalHandling sh;
+    #endif
 
     // remove the outdated binary
     td::utils::Updater::removeOldFile();

src/game/BaseGame.cpp

@@ -17,5 +17,21 @@ void Game::tick(std::uint64_t delta) {
     }
 }
 
+Player* Game::getPlayerById(PlayerID id) {
+    auto it = m_Players.find(id);
+
+    if (it == m_Players.end()) return nullptr;
+
+    return &it->second;
+}
+
+const Player* Game::getPlayerById(PlayerID id) const {
+    auto it = m_Players.find(id);
+
+    if (it == m_Players.end()) return nullptr;
+
+    return &it->second;
+}
+
 } // namespace game 
 } // namespace td

src/game/Mobs.cpp

@@ -1,4 +1,6 @@
 #include "game/Mobs.h"
+#include "game/Player.h"
+#include "game/World.h"
 
 #include <map>
 #include <algorithm>
@@ -18,7 +20,7 @@ EffectDuration& Mob::getEffect(EffectType effectType) {
     return *std::find_if(m_Effects.begin(), m_Effects.end(), [&effectType](EffectDuration effect) { return effect.type == effectType;});
 }
 
-void Mob::addEffect(EffectType effectType, float durationSec, const Tower* tower) {
+void Mob::addEffect(EffectType effectType, float durationSec, Tower* tower) {
     if (isImmuneTo(effectType))
         return;
     if (hasEffect(effectType)) {
@@ -30,11 +32,176 @@ void Mob::addEffect(EffectType effectType, float durationSec, const Tower* tower
     }
 }
 
-void Mob::tick(std::uint64_t delta) {
-    updateEffects(delta);
+void Mob::attackCastle(std::uint64_t delta, World* world) {
+    if(!hasReachedEnemyCastle()) return;
+    
+    if (m_AttackTimer.update(delta)) {
+        world->getMobNotifier().notifyListeners(&MobListener::OnMobCastleDamage, this, m_CastleTarget, getStats()->getDamage());
+        m_AttackTimer.applyCooldown();
+    }
 }
 
-void Mob::updateEffects(std::uint64_t delta) {
+void Mob::walk(std::uint64_t delta, World* world) {
+    float mobWalkSpeed = getStats()->getMovementSpeed();
+
+    float walkAmount = mobWalkSpeed * ((float)delta / 1000.0f);
+
+    if (hasEffect(EffectType::Slowness))
+        walkAmount *= 0.70; // walk 30% slower
+
+    switch (getDirection()) {
+    case Direction::NegativeX: {
+        setCenterX(getCenterX() - walkAmount);
+        break;
+    }
+    case Direction::PositiveX: {
+        setCenterX(getCenterX() + walkAmount);
+        break;
+    }
+    case Direction::NegativeY: {
+        setCenterY(getCenterY() - walkAmount);
+        break;
+    }
+    case Direction::PositiveY: {
+        setCenterY(getCenterY() + walkAmount);
+        break;
+    }
+    }
+}
+
+void Mob::move(std::uint64_t delta, World* world) {
+    TilePtr tile = world->getTile(getCenter().getX(), getCenter().getY());
+
+    if (tile != nullptr && tile->getType() == TileType::Walk) {
+        WalkableTilePtr walkTile = std::static_pointer_cast<WalkableTile>(tile);
+        changeDirection(*walkTile, world);
+    }
+
+    if (hasReachedEnemyCastle()) return;
+
+    walk(delta, world);
+
+    TeamColor mobTeam = world->getPlayerById(getSender())->getTeamColor();
+
+    TeamCastle* enemyCastle = nullptr;
+
+    if (mobTeam == TeamColor::Red) {
+        enemyCastle = &world->getBlueTeam().getCastle();
+    } else if (mobTeam == TeamColor::Blue) {
+        enemyCastle = &world->getRedTeam().getCastle();
+    }
+
+    if (isTouchingCastle(*enemyCastle)) {
+        moveBack(*enemyCastle, world);
+        setMobReachedCastle(enemyCastle);
+
+        world->getMobNotifier().notifyListeners(&MobListener::OnMobTouchCastle, this, enemyCastle);
+    }
+}
+
+void Mob::moveBack(const TeamCastle& enemyCastle, World* world) {
+    switch (getDirection()) {
+    case Direction::NegativeX: {
+        setCenterX(enemyCastle.getBottomRight().getX() + getWidth() / 2.0f);
+        break;
+    }
+    case Direction::PositiveX: {
+        setCenterX(enemyCastle.getTopLeft().getX() - getWidth() / 2.0f);
+        break;
+    }
+    case Direction::NegativeY: {
+        setCenterY(enemyCastle.getBottomRight().getY() + getHeight() / 2.0f);
+        break;
+    }
+    case Direction::PositiveY: {
+        setCenterY(enemyCastle.getTopLeft().getY() - getHeight() / 2.0f);
+        break;
+    }
+    }
+}
+
+void Mob::changeDirection(const WalkableTile& tile, World* world) {
+    if (getDirection() == tile.direction) return;
+
+    float tileX = static_cast<float>(static_cast<std::int32_t>(getCenterX()));
+    float tileY = static_cast<float>(static_cast<std::int32_t>(getCenterY()));
+
+    switch (getDirection()) {
+
+    case Direction::PositiveY: {
+        if (tile.direction == Direction::NegativeX) {
+            if (getTileY() > getTileX()) {
+                setCenterY(tileY + getTileX());
+                setDirection(tile.direction);
+            }
+        } else { // tile->direction = Direction::PositiveX
+            if (getTileY() > 1 - getTileX()) {
+                setCenterY(tileY + (1 - getTileX()));
+                setDirection(tile.direction);
+            }
+        }
+        return;
+    }
+
+    case Direction::NegativeY: {
+        if (tile.direction == Direction::PositiveX) {
+            if (getTileY() < getTileX()) {
+                setCenterY(tileY + getTileX());
+                setDirection(tile.direction);
+            }
+        } else { // tile.direction = Direction::NegativeX
+            if (getTileY() < 1 - getTileX()) {
+                setCenterY(tileY + (1 - getTileX()));
+                setDirection(tile.direction);
+            }
+        }
+        return;
+    }
+
+    case Direction::PositiveX: {
+        if (tile.direction == Direction::NegativeY) {
+            if (getTileX() > getTileY()) {
+                setCenterX(tileX + getTileY());
+                setDirection(tile.direction);
+            }
+        } else { // tile.direction = Direction::PositiveY
+            if (getTileX() > 1 - getTileY()) {
+                setCenterX(tileX + (1 - getTileY()));
+                setDirection(tile.direction);
+            }
+        }
+        return;
+    }
+
+    case Direction::NegativeX: {
+        if (tile.direction == Direction::PositiveY) {
+            if (getTileX() < getTileY()) {
+                setCenterX(tileX + getTileY());
+                setDirection(tile.direction);
+            }
+        } else { // tile.direction = Direction::NegativeY
+            if (getTileX() < 1 - getTileY()) {
+                setCenterX(tileX + (1 - getTileY()));
+                setDirection(tile.direction);
+            }
+        }
+        return;
+    }
+
+    }
+}
+
+bool Mob::isTouchingCastle(const TeamCastle& enemyCastle) const {
+    return enemyCastle.collidesWith(*this);
+}
+
+void Mob::tick(std::uint64_t delta, World* world) {
+    updateEffects(delta, world);
+    move(delta, world);
+    attackCastle(delta, world);
+}
+
+void Mob::updateEffects(std::uint64_t delta, World* world) {
     float deltaSec = (float)delta / 1000.0f;
     for (std::size_t i = 0; i < m_Effects.size(); i++) {
         EffectDuration& effect = m_Effects[i];
@@ -63,12 +230,12 @@ void Mob::updateEffects(std::uint64_t delta) {
     }
     if (hasEffect(EffectType::Fire)) {
         if (m_EffectFireTimer.update(delta)) {
-            damage(3, getEffect(EffectType::Fire).tower);
+            world->getMobNotifier().notifyListeners(&MobListener::OnMobDamage, this, 3.0f, getEffect(EffectType::Fire).tower);
         }
     }
     if (hasEffect(EffectType::Poison)) {
         if (m_EffectPoisonTimer.update(delta)) {
-            damage(1, getEffect(EffectType::Poison).tower);
+            world->getMobNotifier().notifyListeners(&MobListener::OnMobDamage, this, 1.0f, getEffect(EffectType::Poison).tower);
         }
     }
     if (hasEffect(EffectType::Heal)) {

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.get(), 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.get(), 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 {
@@ -101,7 +102,6 @@ bool World::saveMap(const std::string& fileName) const {
 }
 
 void World::tick(std::uint64_t delta) {
-    moveMobs(delta);
     tickMobs(delta);
     for (TowerPtr tower : m_Towers) {
         tower->tick(delta, this);
@@ -114,6 +114,7 @@ void World::spawnMobAt(MobID id, MobType type, std::uint8_t level, PlayerID send
     mob->setCenter({ x, y });
     mob->setDirection(dir);
     m_Mobs.push_back(mob);
+    getMobNotifier().notifyListeners(&MobListener::OnMobSpawn, mob.get());
 }
 
 TowerPtr World::placeTowerAt(TowerID id, TowerType type, std::int32_t x, std::int32_t y, PlayerID builder) {
@@ -135,161 +136,7 @@ TowerPtr World::removeTower(TowerID towerId) {
 
 void World::tickMobs(std::uint64_t delta) {
     for (MobPtr mob : m_Mobs) {
-        mob->tick(delta);
-    }
-}
-
-void World::changeMobDirection(MobPtr mob, WalkableTilePtr tile) {
-    if (mob->getDirection() == tile->direction) return;
-
-    float tileX = static_cast<float>(static_cast<std::int32_t>(mob->getCenterX()));
-    float tileY = static_cast<float>(static_cast<std::int32_t>(mob->getCenterY()));
-
-    switch (mob->getDirection()) {
-
-    case Direction::PositiveY: {
-        if (tile->direction == Direction::NegativeX) {
-            if (mob->getTileY() > mob->getTileX()) {
-                mob->setCenterY(tileY + mob->getTileX());
-                mob->setDirection(tile->direction);
-            }
-        } else { // tile->direction = Direction::PositiveX
-            if (mob->getTileY() > 1 - mob->getTileX()) {
-                mob->setCenterY(tileY + (1 - mob->getTileX()));
-                mob->setDirection(tile->direction);
-            }
-        }
-        return;
-    }
-
-    case Direction::NegativeY: {
-        if (tile->direction == Direction::PositiveX) {
-            if (mob->getTileY() < mob->getTileX()) {
-                mob->setCenterY(tileY + mob->getTileX());
-                mob->setDirection(tile->direction);
-            }
-        } else { // tile->direction = Direction::NegativeX
-            if (mob->getTileY() < 1 - mob->getTileX()) {
-                mob->setCenterY(tileY + (1 - mob->getTileX()));
-                mob->setDirection(tile->direction);
-            }
-        }
-        return;
-    }
-
-    case Direction::PositiveX: {
-        if (tile->direction == Direction::NegativeY) {
-            if (mob->getTileX() > mob->getTileY()) {
-                mob->setCenterX(tileX + mob->getTileY());
-                mob->setDirection(tile->direction);
-            }
-        } else { // tile->direction = Direction::PositiveY
-            if (mob->getTileX() > 1 - mob->getTileY()) {
-                mob->setCenterX(tileX + (1 - mob->getTileY()));
-                mob->setDirection(tile->direction);
-            }
-        }
-        return;
-    }
-
-    case Direction::NegativeX: {
-        if (tile->direction == Direction::PositiveY) {
-            if (mob->getTileX() < mob->getTileY()) {
-                mob->setCenterX(tileX + mob->getTileY());
-                mob->setDirection(tile->direction);
-            }
-        } else { // tile->direction = Direction::NegativeY
-            if (mob->getTileX() < 1 - mob->getTileY()) {
-                mob->setCenterX(tileX + (1 - mob->getTileY()));
-                mob->setDirection(tile->direction);
-            }
-        }
-        return;
-    }
-
-    }
-}
-
-void World::moveMobs(std::uint64_t delta) {
-    for (MobPtr mob : m_Mobs) {
-        TilePtr tile = getTile(mob->getCenter().getX(), mob->getCenter().getY());
-
-        if (tile != nullptr && tile->getType() == TileType::Walk) {
-            WalkableTilePtr walkTile = std::static_pointer_cast<WalkableTile>(tile);
-            changeMobDirection(mob, walkTile);
-        }
-
-        if (mob->hasReachedEnemyCastle()) continue;
-
-        moveMob(mob, delta);
-
-        TeamColor mobTeam = m_Game->getPlayerById(mob->getSender()).getTeamColor();
-
-        const TeamCastle* enemyCastle = nullptr;
-
-        if (mobTeam == TeamColor::Red) {
-            enemyCastle = &getBlueTeam().getCastle();
-        } else if (mobTeam == TeamColor::Blue) {
-            enemyCastle = &getRedTeam().getCastle();
-        }
-
-        if (isMobTouchingCastle(mob, *enemyCastle)) {
-            moveBackMob(mob, *enemyCastle);
-            mob->setMobReachedCastle();
-        }
-    }
-}
-
-void World::moveMob(MobPtr mob, std::uint64_t delta) {
-    float mobWalkSpeed = mob->getStats()->getMovementSpeed();
-
-    float walkAmount = mobWalkSpeed * ((float)delta / 1000.0f);
-
-    if (mob->hasEffect(EffectType::Slowness))
-        walkAmount *= 0.70; // walk 30% slower
-
-    switch (mob->getDirection()) {
-    case Direction::NegativeX: {
-        mob->setCenterX(mob->getCenterX() - walkAmount);
-        break;
-    }
-    case Direction::PositiveX: {
-        mob->setCenterX(mob->getCenterX() + walkAmount);
-        break;
-    }
-    case Direction::NegativeY: {
-        mob->setCenterY(mob->getCenterY() - walkAmount);
-        break;
-    }
-    case Direction::PositiveY: {
-        mob->setCenterY(mob->getCenterY() + walkAmount);
-        break;
-    }
-    }
-}
-
-bool World::isMobTouchingCastle(MobPtr mob, const TeamCastle& enemyCastle) const {
-    return enemyCastle.collidesWith(*mob);
-}
-
-void World::moveBackMob(MobPtr mob, const TeamCastle& enemyCastle) {
-    switch (mob->getDirection()) {
-    case Direction::NegativeX: {
-        mob->setCenterX(enemyCastle.getBottomRight().getX() + mob->getWidth() / 2.0f);
-        break;
-    }
-    case Direction::PositiveX: {
-        mob->setCenterX(enemyCastle.getTopLeft().getX() - mob->getWidth() / 2.0f);
-        break;
-    }
-    case Direction::NegativeY: {
-        mob->setCenterY(enemyCastle.getBottomRight().getY() + mob->getHeight() / 2.0f);
-        break;
-    }
-    case Direction::PositiveY: {
-        mob->setCenterY(enemyCastle.getTopLeft().getY() - mob->getHeight() / 2.0f);
-        break;
-    }
+        mob->tick(delta, this);
     }
 }
 
@@ -368,23 +215,26 @@ bool World::CanPlaceBigTower(const glm::vec2& worldPos, PlayerID playerID) const
     return false;
 }
 
+void World::OnMobDie(Mob* mob) {
+    if (mob->OnDeath(this)) { // check if the mob is actually dead (slimes ...)
+        //reward players
+        Player* sender = m_Game->getPlayerById(mob->getSender());
+        sender->addExp(mob->getStats()->getExpReward());
+
+        Player* killer = m_Game->getPlayerById(mob->getLastDamageTower()->getBuilder());
+        killer->addGold(mob->getStats()->getMoneyCost());
+    }
+}
+
 void World::cleanDeadMobs() {
+    // safely remove mobs when unused
     for (std::size_t i = 0; i < m_Mobs.size(); i++) {
         MobPtr mob = m_Mobs[i];
         if (mob->isDead()) {
-            if (mob->OnDeath(this)) {
-                //reward players
-                Player& sender = m_Game->getPlayerById(mob->getSender());
-                sender.addExp(mob->getStats()->getExpReward());
-
-                Player& killer = m_Game->getPlayerById(mob->getLastDamageTower()->getBuilder());
-                killer.addGold(mob->getStats()->getMoneyCost());
-
             m_Mobs.erase(m_Mobs.begin() + i);
         }
     }
 }
-}
 
 TowerPtr World::getTower(const glm::vec2& position) const {
     for (TowerPtr tower : m_Towers) {
@@ -413,14 +263,14 @@ 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.get(), shooter->getStats()->getDamage(), shooter);
     if (fireArrow) {
         target->addEffect(EffectType::Fire, ArcherTower::FireDurationSec, shooter);
     }
@@ -431,15 +281,22 @@ 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.get(), explosionDamage, shooter);
         }
     }
 }
 
-void World::OnMobDamage(MobPtr target, float damage, Tower* source) {
+void World::OnMobCastleDamage(Mob* damager, TeamCastle* enemyCastle, float damage) {
+    enemyCastle->damage(damage);
+    if (enemyCastle->getLife() <= 0) {
+        // TODO: a team has won
+    }
+}
+
+void World::OnMobDamage(Mob* target, float damage, Tower* source) {
     target->damage(damage, source);
     if (target->isDead()) {
-        notifyListeners(&WorldListener::OnMobDead, target);
+        getMobNotifier().notifyListeners(&MobListener::OnMobDie, target);
     }
 }
 
@@ -467,5 +324,9 @@ const Team& World::getTeam(TeamColor team) const {
     return m_Game->getTeam(team);
 }
 
+const Player* World::getPlayerById(PlayerID id) const {
+    return m_Game->getPlayerById(id);
+}
+
 } // namespace game
 } // namespace td

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() {

src/render/gui/MobTooltip.cpp

@@ -17,12 +17,14 @@ MobTooltip::MobTooltip(client::Client* client) : GuiWidget(client) {
 void MobTooltip::render() {
     if (m_Mob == nullptr) return;
 
-    const game::Player& sender = getClient()->getGame().getPlayerById(m_Mob->getSender());
+    // TODO: add sender null check
+
+    const game::Player* sender = getClient()->getGame().getPlayerById(m_Mob->getSender());
     ImGui::BeginTooltip();
     ImGui::Text("Sender :");
     ImGui::SameLine();
-    ImGui::PushStyleColor(ImGuiCol_Text, render::WorldRenderer::getImGuiTeamColor(sender.getTeamColor()));
-    ImGui::Text("%s", sender.getName().c_str());
+    ImGui::PushStyleColor(ImGuiCol_Text, render::WorldRenderer::getImGuiTeamColor(sender->getTeamColor()));
+    ImGui::Text("%s", sender->getName().c_str());
     ImGui::PopStyleColor();
     ImGui::Text("Mob HP : %.1f/%i", m_Mob->getHealth(), m_Mob->getStats()->getMaxLife());
     ImGui::Text("Mob Type : %s", game::MobFactory::getMobName(m_Mob->getType()).c_str());

xmake.lua

@@ -38,6 +38,9 @@ target("TowerDefense")
         if is_os("linux") then
             add_links("dw")
         end
+        if is_os("windows") then
+            add_links("dbghelp", "psapi", "kernel32", "msvcr90")
+        end
         add_cxflags("-pedantic -Wall -Wextra -Wcast-align -Wcast-qual -Wctor-dtor-privacy -Wdisabled-optimization -Wformat=2 -Winit-self -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wnoexcept -Wold-style-cast -Woverloaded-virtual -Wredundant-decls -Wshadow -Wsign-conversion -Wsign-promo -Wstrict-null-sentinel -Wstrict-overflow=5 -Wswitch-default -Wundef -Wno-unused")
     end