From b18f6637b6c58db20353cd3e77584b646ab36b5c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pablo=20Beltr=C3=A1n?= <spekdrum@gmail.com>
Date: Mon, 21 Aug 2017 10:46:41 +0200
Subject: Fully implemented leashes (#3798)

---
 src/Mobs/Monster.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'src/Mobs/Monster.h')

diff --git a/src/Mobs/Monster.h b/src/Mobs/Monster.h
index 268db6168..ab5b2cf2f 100644
--- a/src/Mobs/Monster.h
+++ b/src/Mobs/Monster.h
@@ -43,6 +43,8 @@ public:
 
 	virtual ~cMonster() override;
 
+	virtual void Destroy(bool a_ShouldBroadcast = true) override;
+
 	virtual void Destroyed() override;
 
 	CLASS_PROTODEF(cMonster)
@@ -71,6 +73,37 @@ public:
 	virtual void CheckEventSeePlayer(cChunk & a_Chunk);
 	virtual void EventSeePlayer(cPlayer * a_Player, cChunk & a_Chunk);
 
+	// tolua_begin
+
+	/** Returns whether the mob can be leashed. */
+	bool CanBeLeashed() const { return m_CanBeLeashed; }
+
+	/** Sets whether the mob can be leashed, for extensibility in plugins */
+	void SetCanBeLeashed(bool a_CanBeLeashed) { m_CanBeLeashed = a_CanBeLeashed; }
+
+	/** Returns whether the monster is leashed to an entity. */
+	bool IsLeashed() const { return (m_LeashedTo != nullptr); }
+
+	/** Leash the monster to an entity. */
+	void LeashTo(cEntity * a_Entity, bool a_ShouldBroadcast = true);
+
+	/** Unleash the monster. Overload for the Unleash(bool, bool) function for plugins */
+	void Unleash(bool a_ShouldDropLeashPickup);
+
+	/** Returns the entity to where this mob is leashed, returns nullptr if it's not leashed */
+	cEntity * GetLeashedTo() const { return m_LeashedTo; }
+
+	// tolua_end
+
+	/** Unleash the monster. */
+	void Unleash(bool a_ShouldDropLeashPickup, bool a_ShouldBroadcast);
+
+	/** Sets entity position to where is leashed this mob */
+	void SetLeashToPos(Vector3d * pos) { m_LeashToPos = std::unique_ptr<Vector3d>(pos); }
+
+	/** Gets entity position to where mob should be leashed */
+	Vector3d * GetLeashToPos() const { return m_LeashToPos.get(); }
+
 	/** Reads the monster configuration for the specified monster name and assigns it to this object. */
 	void GetMonsterConfig(const AString & a_Name);
 
@@ -260,6 +293,18 @@ protected:
 
 	bool m_WasLastTargetAPlayer;
 
+	/** Entity leashed to */
+	cEntity * m_LeashedTo;
+
+	/** Entity pos where this mob was leashed to. Used when deserializing the chunk in order to make the mob find the leash knot. */
+	std::unique_ptr<Vector3d> m_LeashToPos;
+
+	/** Mob has ben leashed or unleashed in current player action. Avoids double actions on horses. */
+	bool m_IsLeashActionJustDone;
+
+	/** Determines whether a monster can be leashed */
+	bool m_CanBeLeashed;
+
 	/** Adds a random number of a_Item between a_Min and a_Max to itemdrops a_Drops */
 	void AddRandomDropItem(cItems & a_Drops, unsigned int a_Min, unsigned int a_Max, short a_Item, short a_ItemHealth = 0);
 
@@ -281,4 +326,7 @@ private:
 	it MUST be reset when the pointee changes worlds or is destroyed. */
 	cPawn * m_Target;
 
+	/** Leash calculations inside Tick function */
+	void CalcLeashActions();
+
 } ;  // tolua_export
-- 
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