Unified the way mobs are spawned (egg vs natural). Fixed deadlocks in mob moving. Fixed mob destroying code.

Should fix FS #400 and partially fix FS #381

git-svn-id: http://mc-server.googlecode.com/svn/trunk@1626 0a769ca7-a7f5-676a-18bf-c427514a06d6

source/Chunk.cpp

@@ -123,7 +123,7 @@ cChunk::~cChunk()
 	{
 		if (!(*itr)->IsPlayer())
 		{
-			(*itr)->Destroy();
+			(*itr)->Destroy(false);
 			delete *itr;
 		}
 	}

source/Entity.cpp

@@ -173,13 +173,17 @@ void cEntity::WrapSpeed(void)
 
 
 
-void cEntity::Destroy(void)
+void cEntity::Destroy(bool a_ShouldBroadcast)
 {
 	if (!m_IsInitialized)
 	{
 		return;
 	}
+	
+	if (a_ShouldBroadcast)
+	{
 		m_World->BroadcastDestroyEntity(*this);
+	}
 
 	m_IsInitialized = false;
 

source/Entity.h

@@ -161,7 +161,8 @@ public:
 	inline int  GetUniqueID(void) const { return m_UniqueID; }
 	inline bool IsDestroyed(void) const { return !m_IsInitialized; }
 
-	void Destroy(void);
+	/// Schedules the entity for destroying; if a_ShouldBroadcast is set to true, broadcasts the DestroyEntity packet
+	void Destroy(bool a_ShouldBroadcast = true);
 
 	// tolua_end
 

source/FallingBlock.cpp

@@ -58,7 +58,7 @@ void cFallingBlock::Tick(float a_Dt, cChunk & a_Chunk)
 		// Fallen out of this world, just continue falling until out of sight, then destroy:
 		if (BlockY < 100)
 		{
-			Destroy();
+			Destroy(true);
 		}
 		return;
 	}
@@ -77,7 +77,7 @@ void cFallingBlock::Tick(float a_Dt, cChunk & a_Chunk)
 		// Fallen onto a block that breaks this into pickups (e. g. half-slab)
 		// Must finish the fall with coords one below the block:
 		cSandSimulator::FinishFalling(m_World, BlockX, BlockY, BlockZ, m_BlockType, m_BlockMeta);
-		Destroy();
+		Destroy(true);
 		return;
 	}
 	else if (!cSandSimulator::CanContinueFallThrough(BlockBelow))
@@ -93,7 +93,7 @@ void cFallingBlock::Tick(float a_Dt, cChunk & a_Chunk)
 		*/
 
 		cSandSimulator::FinishFalling(m_World, BlockX, BlockY + 1, BlockZ, m_BlockType, m_BlockMeta);
-		Destroy();
+		Destroy(true);
 		return;
 	}
 }

source/Mobs/Monster.cpp

@@ -95,7 +95,7 @@ void cMonster::Tick(float a_Dt, cChunk & a_Chunk)
 		m_DestroyTimer += a_Dt / 1000;
 		if (m_DestroyTimer > 1)
 		{
-			Destroy();
+			Destroy(true);
 		}
 		return;
 	}
@@ -134,7 +134,12 @@ void cMonster::Tick(float a_Dt, cChunk & a_Chunk)
 			{
 				Vector3f NormSpeed = Vector3f(GetSpeed()).NormalizeCopy();
 				Vector3f NextBlock = Vector3f( GetPosition() ) + NormSpeed;
-				double NextHeight = (double)GetWorld()->GetHeight( (int)NextBlock.x, (int)NextBlock.z );
+				int NextHeight;
+				if (!m_World->TryGetHeight((int)NextBlock.x, (int)NextBlock.z, NextHeight))
+				{
+					// The chunk at NextBlock is not loaded
+					return;
+				}
 				if( NextHeight > (GetPosY() - 1.0) && (NextHeight - GetPosY()) < 2.5 )
 				{
 					m_bOnGround = false;

source/Pickup.cpp

@@ -93,7 +93,7 @@ void cPickup::Tick(float a_Dt, cChunk & a_Chunk)
 					m_Timer += a_Dt;  // In case we have to destroy the pickup in the same tick.
 					if (m_Timer > 500.f)  
 					{
-						Destroy();
+						Destroy(true);
 						return;
 					}
 				}
@@ -104,20 +104,20 @@ void cPickup::Tick(float a_Dt, cChunk & a_Chunk)
 	{
 		if (m_Timer > 500.f)  // 0.5 second
 		{
-			Destroy();
+			Destroy(true);
 			return;
 		}
 	}
 
 	if (m_Timer > 1000 * 60 * 5)  // 5 minutes
 	{
-		Destroy();
+		Destroy(true);
 		return;
 	}
 
 	if (GetPosY() < -8) // Out of this world and no more visible!
 	{
-		Destroy();
+		Destroy(true);
 		return;
 	}
 }

source/TNTEntity.cpp

@@ -60,7 +60,7 @@ void cTNTEntity::Tick(float a_Dt, cChunk & a_Chunk)
 	m_Counter += delta_time;
 	if (m_Counter > m_MaxFuseTime)  // Check if we go KABOOOM
 	{
-		Destroy();
+		Destroy(true);
 		LOGD("BOOM at {%f,%f,%f}", GetPosX(), GetPosY(), GetPosZ());
 		m_World->DoExplosiontAt(4.0, (int)floor(GetPosX()), (int)floor(GetPosY()), (int)floor(GetPosZ()));
 		return;

source/World.cpp

@@ -621,65 +621,55 @@ void cWorld::TickSpawnMobs(float a_Dt)
 		SpawnPos = (*itr)->GetPosition();
 	}
 
-	cMonster * Monster = NULL;
+	int dayRand   = (m_TickRand.randInt() /  7) %  6;
-	int dayRand   = m_TickRand.randInt() % 6;
+	int nightRand = (m_TickRand.randInt() / 11) % 10;
-	int nightRand = m_TickRand.randInt() % 10;
 
 	SpawnPos += Vector3d((double)(m_TickRand.randInt() % 64) - 32, (double)(m_TickRand.randInt() % 64) - 32, (double)(m_TickRand.randInt() % 64) - 32);
 	int Height = GetHeight((int)SpawnPos.x, (int)SpawnPos.z);
 
+	int MobType = -1;
 	if (m_TimeOfDay >= 12000 + 1000)
 	{
 		if (GetBiomeAt((int)SpawnPos.x, (int)SpawnPos.z) == biHell) // Spawn nether mobs
 		{
-			if (nightRand == 1)
+			switch (nightRand)
-				Monster = new cZombie();
+			{
-			else if (nightRand == 5)
+				case 1: MobType = E_ENTITY_TYPE_ZOMBIE;        break;  // _X 2013_06_25: Really? Zombies in the Nether?
-				Monster = new cGhast();
+				case 5: MobType = E_ENTITY_TYPE_GHAST;         break;
-			else if (nightRand == 6)
+				case 6: MobType = E_ENTITY_TYPE_ZOMBIE_PIGMAN; break;
-				Monster = new cZombiepigman();
+			}
 		}
 		else
 		{
-			if (nightRand == 0) //random percent to spawn for night
+			switch (nightRand)
-				Monster = new cSpider();
+			{
-			else if (nightRand == 2)
+				case 0: MobType = E_ENTITY_TYPE_SPIDER;      break;
-				Monster = new cEnderman();
+				case 2: MobType = E_ENTITY_TYPE_ENDERMAN;    break;
-			else if (nightRand == 3)
+				case 3: MobType = E_ENTITY_TYPE_CREEPER;     break;
-				Monster = new cCreeper();
+				case 4: MobType = E_ENTITY_TYPE_CAVE_SPIDER; break;
-			else if (nightRand == 4)
+				case 7: MobType = E_ENTITY_TYPE_SLIME;       break;
-				Monster = new cCavespider();
+				case 8: MobType = E_ENTITY_TYPE_SILVERFISH;  break;
-			else if (nightRand == 7)
+				case 9: MobType = E_ENTITY_TYPE_SKELETON;    break;
-				Monster = new cSlime();
+			}
-			else if (nightRand == 8)
-				Monster = new cSilverfish();
-			else if (nightRand == 9)
-				Monster = new cSkeleton();
 		}
-		//end random percent to spawn for night
 	}
 	else
 	{
-		if (dayRand == 0) //random percent to spawn for day
+		switch (dayRand)
-			Monster = new cChicken();
+		{
-		else if (dayRand == 1)
+			case 0: MobType = E_ENTITY_TYPE_CHICKEN; break;
-			Monster = new cCow();
+			case 1: MobType = E_ENTITY_TYPE_COW;     break;
-		else if (dayRand == 2)
+			case 2: MobType = E_ENTITY_TYPE_PIG;     break;
-			Monster = new cPig();
+			case 3: MobType = E_ENTITY_TYPE_SHEEP;   break;
-		else if (dayRand == 3)
+			case 4: MobType = E_ENTITY_TYPE_SQUID;   break;
-			Monster = new cSheep();
+			case 5: MobType = E_ENTITY_TYPE_WOLF;    break;
-		else if (dayRand == 4)
+		}
-			Monster = new cSquid();
-		else if (dayRand == 5)
-			Monster = new cWolf();
-		//end random percent to spawn for day
 	}
 
-	if (Monster)
+	if (MobType >= 0)
 	{
-		Monster->Initialize(this);
+		// A proper mob type was selected, now spawn the mob:
-		Monster->TeleportTo(SpawnPos.x, (double)(Height) + 2, SpawnPos.z);
+		SpawnMob(SpawnPos.x, SpawnPos.y, SpawnPos.z, MobType);
-		BroadcastSpawn(*Monster);
 	}
 }