nice

include/td/game/Mobs.h

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+#pragma once
+
+#include <td/game/Towers.h>
+
+#include <td/Maths.h>
+#include <td/Types.h>
+#include <td/game/Team.h>
+
+#include <vector>
+#include <memory>
+
+namespace td {
+namespace game {
+
+struct WalkableTile;
+
+enum class EffectType : std::uint8_t {
+	Slowness = 0,
+	Stun,
+	Fire,
+	Poison,
+	Heal,
+};
+
+enum class MobType : std::uint8_t {
+	Zombie = 0,
+	Spider,
+	Skeleton,
+	Pigman,
+	Creeper,
+	Silverfish,
+	Blaze,
+	Witch,
+	Slime,
+	Giant,
+
+	MOB_COUNT
+};
+
+typedef std::uint32_t MobID;
+typedef std::uint8_t MobLevel;
+typedef std::vector<TowerType> TowerImmunities;
+typedef std::vector<EffectType> EffectImmunities;
+
+class MobStats {
+private:
+	float m_Damage;
+	float m_Speed;
+	Vec2f m_Size;
+	std::uint16_t m_MoneyCost;
+	std::uint16_t m_ExpCost;
+	std::uint16_t m_MaxLife;
+	std::uint16_t m_ExpReward;
+public:
+	MobStats(float damage, float speed, Vec2f size, std::uint16_t moneyCost,
+		std::uint16_t expCost, std::uint16_t expReward,
+		std::uint16_t maxLife) : m_Damage(damage), m_Speed(speed),
+		m_Size(size), m_MoneyCost(moneyCost), m_ExpCost(expCost),
+		m_MaxLife(maxLife), m_ExpReward(expReward) {
+	}
+
+	float GetDamage() const { return m_Damage; }
+	float GetMovementSpeed() const { return m_Speed; }
+	const Vec2f& GetSize() const { return m_Size; }
+	std::uint16_t GetMoneyCost() const { return m_MoneyCost; }
+	std::uint16_t GetExpCost() const { return m_ExpCost; }
+	std::uint16_t GetExpReward() const { return m_ExpReward; }
+	std::uint16_t GetMaxLife() const { return m_MaxLife; }
+};
+
+struct EffectDuration {
+	EffectType type;
+	float duration; // in seconds
+	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);
+
+class Mob : public utils::shape::Rectangle {
+protected:
+	float m_Health;
+private:
+	MobID m_ID;
+	PlayerID m_Sender;
+	MobLevel m_Level;
+	Direction m_Direction;
+	std::vector<EffectDuration> m_Effects;
+	const Tower* m_LastDamage;   // the last tower that damaged the mob
+	float m_HitCooldown;
+
+	// 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_HitCooldown(0), m_CastleTarget(nullptr) {
+
+	}
+
+	virtual MobType GetType() const = 0;
+
+	virtual void Tick(std::uint64_t delta, World* world);
+
+	virtual bool OnDeath(World* world) { return true; }
+
+	MobID GetMobID() const { return m_ID; }
+	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); }
+	void SetHealth(float newHealth) { m_Health = newHealth; }
+	float GetHealth() const { return m_Health; }
+	bool IsDead() const { return m_Health <= 0; }
+	bool IsAlive() const { return m_Health > 0; }
+	const Tower* GetLastDamageTower() { return m_LastDamage; }
+	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;
+		m_HitCooldown = 0.1;
+	}
+
+	void Heal(float heal) {
+		m_Health = std::min(static_cast<float>(GetStats()->GetMaxLife()), m_Health + heal);
+	}
+
+	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, Tower* tower);
+	bool HasEffect(EffectType type);
+
+	bool HasTakenDamage() { return m_HitCooldown > 0; }
+
+	float GetTileX() { return GetCenterX() - static_cast<float>(static_cast<std::int32_t>(GetCenterX())); } // returns a float between 0 and 1 excluded
+	float GetTileY() { return GetCenterY() - static_cast<float>(static_cast<std::int32_t>(GetCenterY())); } // returns a float between 0 and 1 excluded
+
+	Direction GetDirection() const { return m_Direction; }
+	void SetDirection(Direction dir) { m_Direction = dir; }
+protected:
+	void InitMob() {
+		m_Health = static_cast<float>(GetStats()->GetMaxLife());
+		SetSize(GetStats()->GetSize().x, GetStats()->GetSize().y);
+	}
+private:
+	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);
+};
+
+typedef std::shared_ptr<Mob> MobPtr;
+
+class Zombie : public Mob {
+public:
+	Zombie(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Zombie; }
+};
+
+class Spider : public Mob {
+public:
+	Spider(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Spider; }
+};
+
+class Skeleton : public Mob {
+public:
+	Skeleton(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Skeleton; }
+};
+
+class PigMan : public Mob {
+public:
+	PigMan(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Pigman; }
+};
+
+class Creeper : public Mob {
+public:
+	Creeper(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Creeper; }
+};
+
+class Silverfish : public Mob {
+public:
+	Silverfish(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Silverfish; }
+};
+
+class Blaze : public Mob {
+public:
+	Blaze(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Blaze; }
+};
+
+class Witch : public Mob {
+public:
+	Witch(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Witch; }
+};
+
+class Slime : public Mob {
+public:
+	Slime(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Slime; }
+};
+
+class Giant : public Mob {
+public:
+	Giant(MobID id, std::uint8_t level, PlayerID sender) : Mob(id, level, sender) { InitMob(); }
+
+	virtual MobType GetType() const { return MobType::Giant; }
+};
+
+namespace MobFactory {
+
+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
+