feat: add kill reward + effect damages

include/game/Mobs.h

@@ -36,7 +36,6 @@ typedef std::uint32_t MobID;
 typedef std::uint8_t MobLevel;
 typedef std::vector<TowerType> TowerImmunities;
 typedef std::vector<EffectType> EffectImmunities;
-typedef std::pair<EffectType, float> EffectDuration;
 
 class MobStats {
 private:
@@ -62,6 +61,12 @@ public:
     std::uint16_t getMaxLife() const { return m_MaxLife; }
 };
 
+struct EffectDuration{
+    EffectType type;
+    float duration; // in seconds
+    const Tower* tower; // the tower that gived the effect
+};
+
 const MobStats* getMobStats(MobType type, std::uint8_t level);
 const TowerImmunities& getMobTowerImmunities(MobType type, std::uint8_t level);
 const EffectImmunities& getMobEffectImmunities(MobType type, std::uint8_t level);
@@ -75,10 +80,16 @@ private:
     MobLevel m_Level;
     Direction m_Direction;
     std::vector<EffectDuration> m_Effects;
+    const Tower* m_KillTower;   // the tower that killed the mob
+
+    utils::Timer m_EffectFireTimer;
+    utils::Timer m_EffectPoisonTimer;
+    utils::Timer m_EffectHealTimer;
 
     float m_X = 0, m_Y = 0;
 public:
-    Mob(MobID id, MobLevel level, PlayerID sender) : m_Sender(sender), m_Level(level) {
+    Mob(MobID id, MobLevel level, PlayerID sender) : m_Sender(sender), m_Level(level), 
+        m_EffectFireTimer(1000), m_EffectPoisonTimer(1000), m_EffectHealTimer(1000) {
 
     }
 
@@ -86,13 +97,18 @@ public:
 
     virtual void tick(std::uint64_t delta);
 
+    virtual void OnDeath(World* world){}
+
     const TowerImmunities& getTowerImmunities() const { return getMobTowerImmunities(getType(), m_Level); }
     const EffectImmunities& getEffectImmunities() const { return getMobEffectImmunities(getType(), m_Level); }
     PlayerID getSender() const { return m_Sender; }
     MobLevel getLevel() const { return m_Level; }
     const MobStats* getStats() const { return getMobStats(getType(), m_Level); }
     float getHealth() const { return m_Health; }
+    bool isDead() const { return m_Health <= 0; }
     bool isAlive() const { return m_Health > 0; }
+    const Tower* getKillTower() { return m_KillTower; }
+    void setKillTower(const Tower* killTower) { m_KillTower = killTower; }
 
     void damage(float dmg) { m_Health -= dmg; }
     void heal(float heal) { m_Health = std::min((float)getStats()->getMaxLife(), m_Health + heal); }
@@ -106,7 +122,7 @@ public:
     bool isImmuneTo(TowerType type);
 
     bool isImmuneTo(EffectType type);
-    void addEffect(EffectType type, float durationSec);
+    void addEffect(EffectType type, float durationSec, const Tower* tower);
     bool hasEffect(EffectType type);
 
 
@@ -116,6 +132,7 @@ protected:
     void initHealth() { m_Health = (float)getStats()->getMaxLife(); }
 private:
     void updateEffects(std::uint64_t delta);
+    EffectDuration& getEffect(EffectType type);
 };
 
 typedef std::shared_ptr<Mob> MobPtr;