4 files changed, 37 insertions, 9 deletions

diff --git a/src/Mobs/AggressiveMonster.cpp b/src/Mobs/AggressiveMonster.cpp
index 0901f85a9..3e5f72dbf 100644
--- a/src/Mobs/AggressiveMonster.cpp
+++ b/src/Mobs/AggressiveMonster.cpp
@@ -37,7 +37,7 @@ void cAggressiveMonster::InStateChasing(float a_Dt)
 			}
 		}
 
-		if (((float)m_FinalDestination.x != (float)m_Target->GetPosX()) || ((float)m_FinalDestination.z != (float)m_Target->GetPosZ()))
+		if (!IsMovingToTargetPosition())
 		{
 			MoveToPosition(m_Target->GetPosition());
 		}
@@ -106,3 +106,18 @@ void cAggressiveMonster::Attack(float a_Dt)
 
 
 
+bool cAggressiveMonster::IsMovingToTargetPosition()
+{
+	float epsilon = 0.000000000001;
+	// Difference between destination x and target x is negligible (to 10^-12 precision)
+	if (fabsf((float)m_FinalDestination.x - (float)m_Target->GetPosX()) < epsilon)
+	{
+		return false;
+	}
+	// Difference between destination z and target z is negligible (to 10^-12 precision)
+	else if (fabsf(m_FinalDestination.z - (float)m_Target->GetPosZ()) > epsilon)
+	{
+		return false;
+	}
+	return true;
+}
diff --git a/src/Mobs/AggressiveMonster.h b/src/Mobs/AggressiveMonster.h
index 152260f95..d70ff04a3 100644
--- a/src/Mobs/AggressiveMonster.h
+++ b/src/Mobs/AggressiveMonster.h
@@ -22,6 +22,10 @@ public:
 	virtual void EventSeePlayer(cEntity *) override;
 	virtual void Attack(float a_Dt);
 
+protected:
+	/** Whether this mob's destination is the same as its target's position. */
+	bool IsMovingToTargetPosition();
+
 } ;
 
 
diff --git a/src/Mobs/Monster.cpp b/src/Mobs/Monster.cpp
index eb8480268..14d951393 100644
--- a/src/Mobs/Monster.cpp
+++ b/src/Mobs/Monster.cpp
@@ -761,8 +761,10 @@ cMonster::eFamily cMonster::FamilyFromType(eType a_Type)
 		case mtChicken:      return mfPassive;
 		case mtCow:          return mfPassive;
 		case mtCreeper:      return mfHostile;
+		case mtEnderDragon:  return mfNoSpawn;
 		case mtEnderman:     return mfHostile;
 		case mtGhast:        return mfHostile;
+		case mtGiant:        return mfNoSpawn;
 		case mtHorse:        return mfPassive;
 		case mtIronGolem:    return mfPassive;
 		case mtMagmaCube:    return mfHostile;
@@ -773,17 +775,20 @@ cMonster::eFamily cMonster::FamilyFromType(eType a_Type)
 		case mtSilverfish:   return mfHostile;
 		case mtSkeleton:     return mfHostile;
 		case mtSlime:        return mfHostile;
+		case mtSnowGolem:    return mfNoSpawn;
 		case mtSpider:       return mfHostile;
 		case mtSquid:        return mfWater;
 		case mtVillager:     return mfPassive;
 		case mtWitch:        return mfHostile;
-		case mtWither:       return mfHostile;
+		case mtWither:       return mfNoSpawn;
 		case mtWolf:         return mfHostile;
 		case mtZombie:       return mfHostile;
 		case mtZombiePigman: return mfHostile;
-	} ;
+			
+		case mtInvalidType:  break;
+	}
 	ASSERT(!"Unhandled mob type");
-	return mfMaxplusone;
+	return mfUnhandled;
 }
 
 
@@ -794,10 +799,12 @@ int cMonster::GetSpawnDelay(cMonster::eFamily a_MobFamily)
 {
 	switch (a_MobFamily)
 	{
-		case mfHostile: return 40;
-		case mfPassive: return 40;
-		case mfAmbient: return 40;
-		case mfWater:   return 400;
+		case mfHostile:   return 40;
+		case mfPassive:   return 40;
+		case mfAmbient:   return 40;
+		case mfWater:     return 400;
+		case mfNoSpawn:   return -1;
+		case mfUnhandled: break;
 	}
 	ASSERT(!"Unhandled mob family");
 	return -1;
@@ -866,6 +873,7 @@ cMonster * cMonster::NewMonsterFromType(cMonster::eType a_MobType)
 		case mtEnderDragon:   toReturn = new cEnderDragon();              break;
 		case mtEnderman:      toReturn = new cEnderman();                 break;
 		case mtGhast:         toReturn = new cGhast();                    break;
+		case mtGiant:         toReturn = new cGiant();                    break;
 		case mtIronGolem:     toReturn = new cIronGolem();                break;
 		case mtMooshroom:     toReturn = new cMooshroom();                break;
 		case mtOcelot:        toReturn = new cOcelot();                   break;
diff --git a/src/Mobs/Monster.h b/src/Mobs/Monster.h
index 70b3783fc..6b9c4fab8 100644
--- a/src/Mobs/Monster.h
+++ b/src/Mobs/Monster.h
@@ -66,7 +66,8 @@ public:
 		mfAmbient  = 2, // Bats
 		mfWater    = 3, // Squid
 
-		mfMaxplusone, // Nothing. Be sure this is the last and the others are in order
+		mfNoSpawn,
+		mfUnhandled, // Nothing. Be sure this is the last and the others are in order
 	} ;
 	
 	// tolua_end