Fixed some small passive mob issues (#4057)

* Chickens can be bred with seeds, beetroot seeds, melon seeds, or pumpkin seeds Ref: https://minecraft.gamepedia.com/Chicken#Baby_chicken
* Baby passive mobs don't drop items
* Fixed the size of some mobs

src/Mobs/Chicken.cpp

@@ -10,7 +10,7 @@
 
 
 cChicken::cChicken(void) :
-	super("Chicken", mtChicken, "entity.chicken.hurt", "entity.chicken.death", 0.3, 0.4),
+	super("Chicken", mtChicken, "entity.chicken.hurt", "entity.chicken.death", 0.4, 0.7),
 	m_EggDropTimer(0)
 {
 	SetGravity(-2.0f);
@@ -34,14 +34,10 @@ void cChicken::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 		return;  // Babies don't lay eggs
 	}
 
-	if ((m_EggDropTimer == 6000) && GetRandomProvider().RandBool())
-	{
-		cItems Drops;
-		m_EggDropTimer = 0;
-		Drops.push_back(cItem(E_ITEM_EGG, 1));
-		m_World->SpawnItemPickups(Drops, GetPosX(), GetPosY(), GetPosZ(), 10);
-	}
-	else if (m_EggDropTimer == 12000)
+	if (
+		((m_EggDropTimer == 6000) && GetRandomProvider().RandBool()) ||
+		m_EggDropTimer == 12000
+	)
 	{
 		cItems Drops;
 		m_EggDropTimer = 0;
@@ -60,6 +56,11 @@ void cChicken::Tick(std::chrono::milliseconds a_Dt, cChunk & a_Chunk)
 
 void cChicken::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	unsigned int LootingLevel = 0;
 	if (a_Killer != nullptr)
 	{

src/Mobs/Chicken.h

@@ -21,6 +21,9 @@ public:
 
 	virtual void GetFollowedItems(cItems & a_Items) override
 	{
+		a_Items.Add(E_ITEM_BEETROOT_SEEDS);
+		a_Items.Add(E_ITEM_MELON_SEEDS);
+		a_Items.Add(E_ITEM_PUMPKIN_SEEDS);
 		a_Items.Add(E_ITEM_SEEDS);
 	}
 

src/Mobs/Cow.cpp

@@ -21,6 +21,11 @@ cCow::cCow(void) :
 
 void cCow::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	unsigned int LootingLevel = 0;
 	if (a_Killer != nullptr)
 	{

src/Mobs/Horse.cpp

@@ -169,6 +169,11 @@ void cHorse::OnRightClicked(cPlayer & a_Player)
 
 void cHorse::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	unsigned int LootingLevel = 0;
 	if (a_Killer != nullptr)
 	{

src/Mobs/Mooshroom.cpp

@@ -24,6 +24,11 @@ cMooshroom::cMooshroom(void) :
 
 void cMooshroom::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	unsigned int LootingLevel = 0;
 	if (a_Killer != nullptr)
 	{

src/Mobs/Pig.cpp

@@ -21,6 +21,11 @@ cPig::cPig(void) :
 
 void cPig::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	unsigned int LootingLevel = 0;
 	if (a_Killer != nullptr)
 	{

src/Mobs/Rabbit.cpp

@@ -33,6 +33,11 @@ cRabbit::cRabbit(eRabbitType Type, int MoreCarrotTicks) :
 
 void cRabbit::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	unsigned int LootingLevel = 0;
 	if (a_Killer != nullptr)
 	{

src/Mobs/Sheep.cpp

@@ -35,6 +35,11 @@ cSheep::cSheep(int a_Color) :
 
 void cSheep::GetDrops(cItems & a_Drops, cEntity * a_Killer)
 {
+	if (IsBaby())
+	{
+		return;  // Babies don't drop items
+	}
+
 	if (!m_IsSheared)
 	{
 		a_Drops.push_back(cItem(E_BLOCK_WOOL, 1, static_cast<short>(m_WoolColor)));

src/Mobs/Silverfish.h

@@ -14,7 +14,7 @@ class cSilverfish :
 
 public:
 	cSilverfish(void) :
-		super("Silverfish", mtSilverfish, "entity.silverfish.hurt", "entity.silverfish.death", 0.3, 0.7)
+		super("Silverfish", mtSilverfish, "entity.silverfish.hurt", "entity.silverfish.death", 0.3, 0.4)
 	{
 	}