11 files changed, 209 insertions, 19 deletions

diff --git a/src/Entities/Entity.h b/src/Entities/Entity.h
index 63dfabb53..c4f66893d 100644
--- a/src/Entities/Entity.h
+++ b/src/Entities/Entity.h
@@ -126,6 +126,8 @@ public:
 
 		// Informs client to explode a firework based on its metadata
 		esFireworkExploding      = 17,
+		// Passive mob is in "love mode"
+		esMobInLove              = 18,
 	} ;
 
 	static const int FIRE_TICKS_PER_DAMAGE = 10;   ///< Ticks to wait between damaging an entity when it stands in fire
diff --git a/src/Mobs/Cow.cpp b/src/Mobs/Cow.cpp
index a45010201..dec8eface 100644
--- a/src/Mobs/Cow.cpp
+++ b/src/Mobs/Cow.cpp
@@ -36,7 +36,10 @@ void cCow::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 
 void cCow::OnRightClicked(cPlayer & a_Player)
 {
-	if ((a_Player.GetEquippedItem().m_ItemType == E_ITEM_BUCKET))
+	super::OnRightClicked(a_Player);
+
+	short HeldItem = a_Player.GetEquippedItem().m_ItemType;
+	if (HeldItem == E_ITEM_BUCKET)
 	{
 		if (!a_Player.IsGameModeCreative())
 		{
@@ -45,4 +48,3 @@ void cCow::OnRightClicked(cPlayer & a_Player)
 		}
 	}
 }
-
diff --git a/src/Mobs/Horse.cpp b/src/Mobs/Horse.cpp
index 8b76d7c50..a338f12bd 100644
--- a/src/Mobs/Horse.cpp
+++ b/src/Mobs/Horse.cpp
@@ -93,6 +93,8 @@ void cHorse::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 
 void cHorse::OnRightClicked(cPlayer & a_Player)
 {
+	super::OnRightClicked(a_Player);
+
 	if (!m_bIsSaddled && m_bIsTame)
 	{
 		if (a_Player.GetEquippedItem().m_ItemType == E_ITEM_SADDLE)
diff --git a/src/Mobs/Horse.h b/src/Mobs/Horse.h
index 27168ebae..987ab71a9 100644
--- a/src/Mobs/Horse.h
+++ b/src/Mobs/Horse.h
@@ -32,6 +32,12 @@ public:
 	int  GetHorseStyle  (void) const  {return m_Style; }
 	int  GetHorseArmour (void) const  {return m_Armour;}
 
+	virtual void GetBreedingItems(cItems & a_Items) override
+	{
+		a_Items.Add(E_ITEM_GOLDEN_CARROT);
+		a_Items.Add(E_ITEM_GOLDEN_APPLE);
+	}
+
 private:
 
 	bool m_bHasChest, m_bIsEating, m_bIsRearing, m_bIsMouthOpen, m_bIsTame, m_bIsSaddled;
diff --git a/src/Mobs/Monster.cpp b/src/Mobs/Monster.cpp
index 060b934ec..d1173c41c 100644
--- a/src/Mobs/Monster.cpp
+++ b/src/Mobs/Monster.cpp
@@ -104,6 +104,7 @@ cMonster::cMonster(const AString & a_ConfigName, eMonsterType a_MobType, const A
 	, m_BurnsInDaylight(false)
 	, m_RelativeWalkSpeed(1)
 	, m_Age(1)
+	, m_AgingTimer(20 * 60 * 20)  // about 20 minutes
 {
 	if (!a_ConfigName.empty())
 	{
@@ -505,6 +506,16 @@ void cMonster::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 	}  // switch (m_EMState)
 
 	BroadcastMovementUpdate();
+
+	if (m_AgingTimer > 0)
+	{
+		m_AgingTimer--;
+		if ((m_AgingTimer <= 0) && IsBaby())
+		{
+			SetAge(1);
+			m_World->BroadcastEntityMetadata(*this);
+		}
+	}
 }
 
 
diff --git a/src/Mobs/Monster.h b/src/Mobs/Monster.h
index 963ac9148..7b6c0c488 100644
--- a/src/Mobs/Monster.h
+++ b/src/Mobs/Monster.h
@@ -280,6 +280,7 @@ protected:
 	double m_RelativeWalkSpeed;
 
 	int m_Age;
+	int m_AgingTimer;
 
 	/** 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);
diff --git a/src/Mobs/Ocelot.h b/src/Mobs/Ocelot.h
index f2727d354..796af2050 100644
--- a/src/Mobs/Ocelot.h
+++ b/src/Mobs/Ocelot.h
@@ -18,6 +18,11 @@ public:
 	{
 	}
 
+	virtual void GetBreedingItems(cItems & a_Items) override
+	{
+		a_Items.Add(E_ITEM_RAW_FISH);
+	}
+
 	CLASS_PROTODEF(cOcelot)
 } ;
 
diff --git a/src/Mobs/PassiveMonster.cpp b/src/Mobs/PassiveMonster.cpp
index a3d51da35..e39f6e23d 100644
--- a/src/Mobs/PassiveMonster.cpp
+++ b/src/Mobs/PassiveMonster.cpp
@@ -4,12 +4,17 @@
 #include "PassiveMonster.h"
 #include "../World.h"
 #include "../Entities/Player.h"
+#include "BoundingBox.h"
 
 
 
 
 cPassiveMonster::cPassiveMonster(const AString & a_ConfigName, eMonsterType a_MobType, const AString & a_SoundHurt, const AString & a_SoundDeath, double a_Width, double a_Height) :
-	super(a_ConfigName, a_MobType, a_SoundHurt, a_SoundDeath, a_Width, a_Height)
+	super(a_ConfigName, a_MobType, a_SoundHurt, a_SoundDeath, a_Width, a_Height),
+	m_LovePartner(nullptr),
+	m_LoveTimer(0),
+	m_LoveCooldown(0),
+	m_MatingTimer(0)
 {
 	m_EMPersonality = PASSIVE;
 }
@@ -35,6 +40,31 @@ bool cPassiveMonster::DoTakeDamage(TakeDamageInfo & a_TDI)
 
 
 
+void cPassiveMonster::EngageLoveMode(cPassiveMonster * a_Partner)
+{
+	m_LovePartner = a_Partner;
+	m_MatingTimer = 50;  // about 3 seconds of mating
+}
+
+
+
+
+
+void cPassiveMonster::ResetLoveMode()
+{
+	m_LovePartner = nullptr;
+	m_LoveTimer = 0;
+	m_MatingTimer = 0;
+	m_LoveCooldown = 20 * 60 * 5;  // 5 minutes
+
+	// when an animal is in love mode, the client only stops sending the hearts if we let them know it's in cooldown, which is done with the "age" metadata
+	m_World->BroadcastEntityMetadata(*this);
+}
+
+
+
+
+
 void cPassiveMonster::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 {
 	super::Tick(a_Dt, a_Chunk);
@@ -43,25 +73,122 @@ void cPassiveMonster::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 	{
 		CheckEventLostPlayer();
 	}
-	cItems FollowedItems;
-	GetFollowedItems(FollowedItems);
-	if (FollowedItems.Size() <= 0)
+	if ((m_LovePartner != nullptr) && m_LovePartner->IsDestroyed())
 	{
-		return;
+		m_LovePartner = nullptr;
 	}
-	cPlayer * a_Closest_Player = m_World->FindClosestPlayer(GetPosition(), static_cast<float>(m_SightDistance));
-	if (a_Closest_Player != nullptr)
+	if (m_LovePartner != nullptr)
 	{
-		cItem EquippedItem = a_Closest_Player->GetEquippedItem();
-		if (FollowedItems.ContainsType(EquippedItem))
+		// if we have a partner, bump into them until baby is made
+		if (m_MatingTimer > 0)
 		{
-			Vector3d PlayerPos = a_Closest_Player->GetPosition();
-			MoveToPosition(PlayerPos);
+			Vector3d Pos = m_LovePartner->GetPosition();
+			MoveToPosition(Pos);
+		}
+		else
+		{
+			// spawn baby
+			Vector3f Pos = (GetPosition() + m_LovePartner->GetPosition()) * 0.5;
+			m_World->SpawnMob(Pos.x, Pos.y, Pos.z, GetMobType(), true);
+
+			cFastRandom Random;
+			m_World->SpawnExperienceOrb(Pos.x, Pos.y, Pos.z, 1 + Random.NextInt(6));
+
+			m_LovePartner->ResetLoveMode();
+			ResetLoveMode();
 		}
 	}
+	else
+	{
+		cItems FollowedItems;
+		GetFollowedItems(FollowedItems);
+		if (FollowedItems.Size() > 0)
+		{
+			cPlayer * a_Closest_Player = m_World->FindClosestPlayer(GetPosition(), static_cast<float>(m_SightDistance));
+			if (a_Closest_Player != nullptr)
+			{
+				cItem EquippedItem = a_Closest_Player->GetEquippedItem();
+				if (FollowedItems.ContainsType(EquippedItem))
+				{
+					Vector3d PlayerPos = a_Closest_Player->GetPosition();
+					MoveToPosition(PlayerPos);
+				}
+			}
+		}
+	}
+
+	if (m_LoveTimer > 0)
+	{
+		if (m_LovePartner == nullptr)
+		{
+			class LookForLover : public cEntityCallback
+			{
+			public:
+				cEntity * m_Me;
+
+				LookForLover(cEntity * a_Me) :
+					m_Me(a_Me)
+				{
+				}
+
+				virtual bool Item(cEntity * a_Entity) override
+				{
+					// if we're the same species as someone around and they dont have a partner, swipe right
+					if ((a_Entity->GetEntityType() == m_Me->GetEntityType()) && (a_Entity != m_Me))
+					{
+						cPassiveMonster * Me = static_cast<cPassiveMonster*>(m_Me);
+						cPassiveMonster * Partner = static_cast<cPassiveMonster*>(a_Entity);
+						if (Partner->IsInLove() && (Partner->GetPartner() == nullptr))
+						{
+							Partner->EngageLoveMode(Me);
+							Me->EngageLoveMode(Partner);
+							return true;
+						}
+					}
+					return false;
+				}
+			} Callback(this);
+
+			m_World->ForEachEntityInBox(cBoundingBox(GetPosition(), 8, 8), Callback);
+		}
+
+		m_LoveTimer--;
+	}
+	if (m_MatingTimer > 0)
+	{
+		m_MatingTimer--;
+	}
+	if (m_LoveCooldown > 0)
+	{
+		m_LoveCooldown--;
+	}
 }
 
 
 
 
 
+void cPassiveMonster::OnRightClicked(cPlayer & a_Player)
+{
+	super::OnRightClicked(a_Player);
+
+	// if right clicked on the player with breeding items, go into lovemode
+	if ((m_LoveCooldown == 0) && !IsInLove() && !IsBaby())
+	{
+		short HeldItem = a_Player.GetEquippedItem().m_ItemType;
+		cItems Items;
+		GetBreedingItems(Items);
+		if (Items.ContainsType(HeldItem))
+		{
+			if (!a_Player.IsGameModeCreative())
+			{
+				a_Player.GetInventory().RemoveOneEquippedItem();
+			}
+			m_LoveTimer = 20 * 30;  // half a minute
+			m_World->BroadcastEntityStatus(*this, esMobInLove);
+		}
+	}
+}
+
+
+
diff --git a/src/Mobs/PassiveMonster.h b/src/Mobs/PassiveMonster.h
index a7e574a1d..ecce4ceb6 100644
--- a/src/Mobs/PassiveMonster.h
+++ b/src/Mobs/PassiveMonster.h
@@ -16,6 +16,7 @@ public:
 	cPassiveMonster(const AString & a_ConfigName, eMonsterType a_MobType, const AString & a_SoundHurt, const AString & a_SoundDeath, double a_Width, double a_Height);
 
 	virtual void Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk) override;
+	virtual void OnRightClicked(cPlayer & a_Player) override;
 
 	/** When hit by someone, run away */
 	virtual bool DoTakeDamage(TakeDamageInfo & a_TDI) override;
@@ -23,7 +24,22 @@ public:
 	/** Returns the items that the animal of this class follows when a player holds it in hand. */
 	virtual void GetFollowedItems(cItems & a_Items) { }
 
-} ;
+	/** Returns the items that make the animal breed - this is usually the same as the ones that make the animal follow, but not necessarily. */
+	virtual void GetBreedingItems(cItems & a_Items) { GetFollowedItems(a_Items); }
+
+	cPassiveMonster * GetPartner(void) const { return m_LovePartner; }
+	void EngageLoveMode(cPassiveMonster * a_Partner);
+	void ResetLoveMode();
+
+	bool IsInLove() const { return (m_LoveTimer > 0); }
+	bool IsInLoveCooldown() const { return (m_LoveCooldown > 0); }
+
+protected:
+	cPassiveMonster * m_LovePartner;
+	int m_LoveTimer;
+	int m_LoveCooldown;
+	int m_MatingTimer;
+};
 
 
 
diff --git a/src/Mobs/Pig.cpp b/src/Mobs/Pig.cpp
index 21c8e923a..b67b29d87 100644
--- a/src/Mobs/Pig.cpp
+++ b/src/Mobs/Pig.cpp
@@ -39,6 +39,8 @@ void cPig::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 
 void cPig::OnRightClicked(cPlayer & a_Player)
 {
+	super::OnRightClicked(a_Player);
+
 	if (m_bIsSaddled)
 	{
 		if (m_Attachee != nullptr)
diff --git a/src/Protocol/Protocol18x.cpp b/src/Protocol/Protocol18x.cpp
index 373269509..833746c00 100644
--- a/src/Protocol/Protocol18x.cpp
+++ b/src/Protocol/Protocol18x.cpp
@@ -3368,7 +3368,7 @@ void cProtocol180::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob)
 			a_Pkt.WriteBEUInt8(0x56);  // Int at index 22
 			a_Pkt.WriteBEInt32(Horse.GetHorseArmour());
 			a_Pkt.WriteBEUInt8(0x0c);
-			a_Pkt.WriteBEInt8(Horse.IsBaby() ? -1 : 0);
+			a_Pkt.WriteBEInt8(Horse.IsBaby() ? -1 : (Horse.IsInLoveCooldown() ? 1 : 0));
 			break;
 		}  // case mtHorse
 
@@ -3384,15 +3384,31 @@ void cProtocol180::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob)
 		{
 			auto & Ocelot = reinterpret_cast<const cOcelot &>(a_Mob);
 			a_Pkt.WriteBEUInt8(0x0c);
-			a_Pkt.WriteBEInt8(Ocelot.IsBaby() ? -1 : 0);
+			a_Pkt.WriteBEInt8(Ocelot.IsBaby() ? -1 : (Ocelot.IsInLoveCooldown() ? 1 : 0));
 			break;
 		}  // case mtOcelot
 
+		case mtCow:
+		{
+			auto & Cow = reinterpret_cast<const cCow &>(a_Mob);
+			a_Pkt.WriteBEUInt8(0x0c);
+			a_Pkt.WriteBEInt8(Cow.IsBaby() ? -1 : (Cow.IsInLoveCooldown() ? 1 : 0));
+			break;
+		}  // case mtCow
+
+		case mtChicken:
+		{
+			auto & Chicken = reinterpret_cast<const cChicken &>(a_Mob);
+			a_Pkt.WriteBEUInt8(0x0c);
+			a_Pkt.WriteBEInt8(Chicken.IsBaby() ? -1 : (Chicken.IsInLoveCooldown() ? 1 : 0));
+			break;
+		}  // case mtChicken
+
 		case mtPig:
 		{
 			auto & Pig = reinterpret_cast<const cPig &>(a_Mob);
 			a_Pkt.WriteBEUInt8(0x0c);
-			a_Pkt.WriteBEInt8(Pig.IsBaby() ? -1 : 0);
+			a_Pkt.WriteBEInt8(Pig.IsBaby() ? -1 : (Pig.IsInLoveCooldown() ? 1 : 0));
 			a_Pkt.WriteBEUInt8(0x10);
 			a_Pkt.WriteBEUInt8(Pig.IsSaddled() ? 1 : 0);
 			break;
@@ -3402,7 +3418,7 @@ void cProtocol180::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob)
 		{
 			auto & Sheep = reinterpret_cast<const cSheep &>(a_Mob);
 			a_Pkt.WriteBEUInt8(0x0c);
-			a_Pkt.WriteBEInt8(Sheep.IsBaby() ? -1 : 0);
+			a_Pkt.WriteBEInt8(Sheep.IsBaby() ? -1 : (Sheep.IsInLoveCooldown() ? 1 : 0));
 			
 			a_Pkt.WriteBEUInt8(0x10);
 			Byte SheepMetadata = 0;
@@ -3421,7 +3437,7 @@ void cProtocol180::WriteMobMetadata(cPacketizer & a_Pkt, const cMonster & a_Mob)
 			a_Pkt.WriteBEUInt8(0x12);
 			a_Pkt.WriteBEUInt8(Rabbit.GetRabbitTypeAsNumber());
 			a_Pkt.WriteBEUInt8(0x0c);
-			a_Pkt.WriteBEInt8(Rabbit.IsBaby() ? -1 : 0);
+			a_Pkt.WriteBEInt8(Rabbit.IsBaby() ? -1 : (Rabbit.IsInLoveCooldown() ? 1 : 0));
 			break;
 		}  // case mtRabbit