1 files changed, 609 insertions, 0 deletions

diff --git a/source/cMonster.cpp b/source/cMonster.cpp
new file mode 100644
index 000000000..63ef1d862
--- /dev/null
+++ b/source/cMonster.cpp
@@ -0,0 +1,609 @@
+#include "cMonster.h"

+#include "cRoot.h"

+#include "cServer.h"

+#include "cClientHandle.h"

+#include "cWorld.h"

+#include "cMCLogger.h"

+#include "cChunk.h"

+#include "cPlayer.h"

+#include "BlockID.h"

+#include "Defines.h"

+

+#include "packets/cPacket_SpawnMob.h"

+#include "packets/cPacket_EntityLook.h"

+#include "packets/cPacket_TeleportEntity.h"

+#include "packets/cPacket_RelativeEntityMoveLook.h"

+#include "packets/cPacket_RelativeEntityMove.h"

+#include "packets/cPacket_Metadata.h"

+

+#include "Vector3f.h"

+#include "Vector3i.h"

+#include "Vector3d.h"

+

+#include "cTracer.h"

+#include "../iniFile/iniFile.h"

+

+#ifndef _WIN32

+#include <cstdlib> // rand

+#include <unistd.h>

+#include <string.h>

+#endif

+

+#include <string>

+

+

+cMonster::cMonster()

+	: m_Target(0)

+	, m_Destination( new Vector3f() )

+	, m_bMovingToDestination(false)

+	, m_Speed( new Vector3f() )

+	, m_DestinationTime( 0 )

+	, m_Gravity( -9.81 )

+	, m_bOnGround( false )

+	, m_DestroyTimer( 0 )

+	, m_Jump(0)

+	, m_MobType( 0 )

+	, m_EMState(IDLE)

+	, m_SightDistance(25)

+	,m_SeePlayerInterval (0)

+	,m_EMPersonality(AGGRESSIVE)

+	,m_AttackDamage(1.0)

+	,m_AttackRange(5.0)

+	,m_AttackInterval(0)

+	,m_AttackRate(3)

+	,m_bPassiveAggressive(false)

+	,idle_interval(0)

+	,m_bBurnable(true)

+	,m_EMMetaState(NORMAL)

+	,m_FireDamageInterval(0)

+	,m_BurnPeriod(0)

+{

+	LOG("cMonster::cMonster()");

+	LOG("In state: %s",GetState());

+	m_Health = 10;

+

+	int RandVal = rand() % 4;

+	if( RandVal == 0 )

+		m_MobType = 90; // Pig

+	else if( RandVal == 1 )

+		m_MobType = 91; // Sheep

+	else if( RandVal == 2 )

+		m_MobType = 92; // Cow

+	else

+		m_MobType = 93; // Hen

+}

+

+cMonster::~cMonster()

+{

+

+	LOG("cMonster::~cMonster()");

+	delete m_Destination;

+	delete m_Speed;

+}

+

+bool cMonster::IsA( const char* a_EntityType )

+{

+    //LOG("IsA( cMonster ) : %s", a_EntityType);

+	if( strcmp( a_EntityType, "cMonster" ) == 0 ) return true;

+	return cPawn::IsA( a_EntityType );

+}

+

+void cMonster::SpawnOn( cClientHandle* a_Target )

+{

+	LOG("Spawn monster on client");

+	cPacket_SpawnMob Spawn;

+	Spawn.m_UniqueID = GetUniqueID();

+	Spawn.m_Type = m_MobType;

+	*Spawn.m_Pos = Vector3i((*m_Pos)*32);

+	Spawn.m_Yaw = 0;

+	Spawn.m_Pitch = 0;

+	Spawn.m_MetaDataSize = 1;

+	Spawn.m_MetaData = new char[Spawn.m_MetaDataSize];

+	Spawn.m_MetaData[0] = 0x7f; // not on fire/crouching/riding

+	//Spawn.m_MetaData[1] = 0x7f; // terminator

+	if( a_Target == 0 )

+	{

+		cChunk* Chunk = cRoot::Get()->GetWorld()->GetChunk( m_ChunkX, m_ChunkY, m_ChunkZ );

+		Chunk->Broadcast( Spawn );

+	}

+	else

+	{

+		a_Target->Send( Spawn );

+	}

+}

+

+void cMonster::MoveToPosition( const Vector3f & a_Position )

+{

+	m_bMovingToDestination = true;

+

+	*m_Destination = a_Position;

+}

+

+bool cMonster::ReachedDestination()

+{

+	Vector3f Distance = (*m_Destination) - Vector3f( m_Pos );

+	if( Distance.SqrLength() < 2.f )

+		return true;

+

+	return false;

+}

+

+void cMonster::Tick(float a_Dt)

+{

+	if( m_Health <= 0 )

+	{

+		m_DestroyTimer += a_Dt/1000;

+		if( m_DestroyTimer > 1 )

+		{

+			Destroy();

+		}

+		return;

+	}

+

+	//a_Dt/=1000;

+	a_Dt/=1000;

+

+	if( m_bMovingToDestination )

+	{

+		Vector3f Pos( m_Pos );

+		Vector3f Distance = *m_Destination - Pos;

+		if( !ReachedDestination() )

+		{

+			Distance.y = 0;

+			Distance.Normalize();

+			Distance*=3;

+			m_Speed->x = Distance.x;

+			m_Speed->z = Distance.z;

+		}

+		else

+		{

+			m_bMovingToDestination = false;

+		}

+

+		if( m_Speed->SqrLength() > 0.f )

+		{

+			if( m_bOnGround )

+			{

+				Vector3f NormSpeed = m_Speed->NormalizeCopy();

+				Vector3f NextBlock = Vector3f( *m_Pos ) + NormSpeed;

+				double NextHeight = (double)cRoot::Get()->GetWorld()->GetHeight( (int)NextBlock.x, (int)NextBlock.z );

+				if( NextHeight > m_Pos->y - 1.2 && NextHeight - m_Pos->y < 2.5 )

+				{

+					m_bOnGround = false;

+					m_Speed->y = 7.f; // Jump!!

+				}

+			}

+		}

+	}

+

+	HandlePhysics( a_Dt );

+

+	ReplicateMovement();

+	

+	Vector3f Distance = *m_Destination - Vector3f( m_Pos );

+	if( Distance.SqrLength() > 0.1f )

+	{

+		float Rotation, Pitch;

+		Distance.Normalize();

+		VectorToEuler( Distance.x, Distance.y, Distance.z, Rotation, Pitch );

+		SetRotation( Rotation );

+		SetPitch( Pitch );

+	}

+	

+	CheckMetaDataBurn(); //Check to see if Enemy should burn based on block they are on

+	

+	if(m_EMMetaState == BURNING) {

+		InStateBurning(a_Dt);

+	}

+	

+	if(m_EMState == IDLE) { //If enemy passive we ignore checks for player visibility

+		InStateIdle(a_Dt);

+	}

+	

+	if(m_EMState == CHASING) { //If we do not see a player anymore skip chasing action

+		InStateChasing(a_Dt);

+	}

+	

+	if(m_EMState == ESCAPING) {

+		InStateEscaping(a_Dt);

+	}

+

+	m_SeePlayerInterval += a_Dt;

+	if(m_SeePlayerInterval > 1) {

+		int rem = rand()%3 + 1; //check most of the time but miss occasionally

+		//LOG("See Player Interval: %3.3f",m_SeePlayerInterval);

+		m_SeePlayerInterval = 0.0;

+		if(rem >= 2) {

+			if(m_EMState == IDLE && m_EMPersonality != PASSIVE) {

+				CheckEventSeePlayer();

+				return;

+			} 

+			if(m_EMState == CHASING || m_EMState == ESCAPING){

+				CheckEventLostPlayer();

+				return;

+			} 

+		}

+	}

+	

+

+}

+

+void cMonster::ReplicateMovement()

+{

+	cChunk* InChunk = cRoot::Get()->GetWorld()->GetChunkUnreliable( m_ChunkX, m_ChunkY, m_ChunkZ );

+	if( !InChunk ) return;

+

+	if(m_bDirtyOrientation && !m_bDirtyPosition)

+	{

+		cPacket_EntityLook EntityLook( this );

+		InChunk->Broadcast( EntityLook );

+		m_bDirtyOrientation = false;

+	}

+	if( m_bDirtyPosition )

+	{

+

+		float DiffX = (float)(GetPosX() - m_LastPosX );

+		float DiffY = (float)(GetPosY() - m_LastPosY );

+		float DiffZ = (float)(GetPosZ() - m_LastPosZ );

+		float SqrDist = DiffX*DiffX + DiffY*DiffY + DiffZ*DiffZ;

+		if( SqrDist > 4*4 // 4 blocks is max Relative Move

+			|| cWorld::GetTime() - m_TimeLastTeleportPacket > 2 )  // Send an absolute position every 2 seconds

+		{

+			//LOG("Teleported %f", sqrtf(SqrDist) );

+			cPacket_TeleportEntity TeleportEntity( this );

+			InChunk->Broadcast( TeleportEntity );

+			m_TimeLastTeleportPacket = cWorld::GetTime();

+		}

+		else

+		{	// Relative move sucks balls! It's always wrong wtf!

+			if( m_bDirtyOrientation )

+			{

+				cPacket_RelativeEntityMoveLook RelativeEntityMoveLook;

+				RelativeEntityMoveLook.m_UniqueID = GetUniqueID();

+				RelativeEntityMoveLook.m_MoveX = (char)(DiffX*32);

+				RelativeEntityMoveLook.m_MoveY = (char)(DiffY*32);

+				RelativeEntityMoveLook.m_MoveZ = (char)(DiffZ*32);

+				RelativeEntityMoveLook.m_Yaw = (char)((GetRotation()/360.f)*256);

+				RelativeEntityMoveLook.m_Pitch    = (char)((GetPitch()/360.f)*256);

+				InChunk->Broadcast( RelativeEntityMoveLook );

+			}

+			else

+			{

+				cPacket_RelativeEntityMove RelativeEntityMove;

+				RelativeEntityMove.m_UniqueID = GetUniqueID();

+				RelativeEntityMove.m_MoveX = (char)(DiffX*32);

+				RelativeEntityMove.m_MoveY = (char)(DiffY*32);

+				RelativeEntityMove.m_MoveZ = (char)(DiffZ*32);

+				InChunk->Broadcast( RelativeEntityMove );

+			}

+		}

+		m_LastPosX = GetPosX();

+		m_LastPosY = GetPosY();

+		m_LastPosZ = GetPosZ();

+		m_bDirtyPosition = false;

+	}

+}

+

+void cMonster::HandlePhysics(float a_Dt)

+{

+	if( m_bOnGround ) // check if it's still on the ground

+	{

+		cWorld* World = cRoot::Get()->GetWorld();

+		if( World->GetBlock( (int)m_Pos->x, (int)m_Pos->y -1, (int)m_Pos->z ) == E_BLOCK_AIR )

+		{

+			m_bOnGround = false;

+		}

+		if( World->GetBlock( (int)m_Pos->x, (int)m_Pos->y, (int)m_Pos->z ) != E_BLOCK_AIR ) // If in ground itself, push it out

+		{

+			m_bOnGround = true;

+			m_Pos->y += 0.2;

+			m_bDirtyPosition = true;

+		}

+		m_Speed->x *= 0.7f/(1+a_Dt);

+		if( fabs(m_Speed->x) < 0.05 ) m_Speed->x = 0;

+		m_Speed->z *= 0.7f/(1+a_Dt);

+		if( fabs(m_Speed->z) < 0.05 ) m_Speed->z = 0;

+	}

+

+	if( !m_bOnGround )

+	{

+		float Gravity = -9.81f*a_Dt;

+		m_Speed->y += Gravity;

+	}

+

+	if( m_Speed->SqrLength() > 0.f )

+	{

+		cTracer Tracer( cRoot::Get()->GetWorld() );

+		int Ret = Tracer.Trace( *m_Pos, *m_Speed, 2 );

+		if( Ret ) // Oh noez! we hit something

+		{

+			// Set to hit position

+			if( (*Tracer.RealHit - Vector3f(*m_Pos)).SqrLength() <= ( *m_Speed * a_Dt ).SqrLength() )

+			{

+				if( Ret == 1 )

+				{

+

+					if( Tracer.HitNormal->x != 0.f ) m_Speed->x = 0.f;

+					if( Tracer.HitNormal->y != 0.f ) m_Speed->y = 0.f;

+					if( Tracer.HitNormal->z != 0.f ) m_Speed->z = 0.f;

+

+					if( Tracer.HitNormal->y > 0 ) // means on ground

+					{

+						m_bOnGround = true;

+					}

+				}

+				*m_Pos = Tracer.RealHit;

+				*m_Pos += *Tracer.HitNormal * 0.2;

+

+			}

+			else

+				*m_Pos += *m_Speed*a_Dt;

+		}

+		else

+		{	// We didn't hit anything, so move =]

+			*m_Pos += *m_Speed*a_Dt;

+		}

+

+		m_bDirtyPosition = true;

+	}

+}

+

+void cMonster::TakeDamage( int a_Damage, cEntity* a_Instigator )

+{

+	cPawn::TakeDamage( a_Damage, a_Instigator );

+		m_Target = a_Instigator;

+		AddReference( m_Target );

+		if(m_EMPersonality == AGGRESSIVE) {

+			m_EMState = CHASING;

+		}

+		if(m_EMPersonality == COWARDLY || m_EMPersonality == PASSIVE) {

+			//m_bPassiveAggressive can be set so if the monster based on time of day for example

+			//so the monster will only attack if provoked

+			m_EMState = (m_bPassiveAggressive)? CHASING : ESCAPING;

+		}

+	//LOG("Take damage");

+}

+

+void cMonster::KilledBy( cEntity* a_Killer )

+{

+	cPawn::KilledBy( a_Killer );

+	m_DestroyTimer = 0;

+}

+

+//----State Logic

+

+const char *cMonster::GetState() {

+	switch(m_EMState) {

+	case IDLE:

+		return "Idle";

+		break;

+	case ATTACKING:

+		return "Attacking";

+		break;

+	case CHASING:

+		return "Chasing";

+		break;

+	default:

+		return "Unknown";

+		break;

+	}

+}

+

+//for debugging

+void cMonster::SetState(const char* a_str) {

+	std::string str = a_str;

+	if(str.compare("Idle") == 0 ) {

+		m_EMState = IDLE;

+	} else if(str.compare("Attacking") == 0 ) {

+		m_EMState = ATTACKING;

+	} else if(str.compare("Chasing") == 0 ) {

+		m_EMState = CHASING;

+	} else {

+		printf("Invalid State");

+	}

+}

+

+//Checks to see if EventSeePlayer should be fired

+//monster sez: Do I see the player

+void cMonster::CheckEventSeePlayer() {

+

+	//LOG("Checking if I see any players");

+	cMonster::ListClosePlayers(this);

+	

+}

+

+void cMonster::CheckEventLostPlayer() {

+	Vector3f pos;

+	cTracer LineOfSight(cRoot::Get()->GetWorld() );

+	

+	//LOG("Checking if I lost my enemy");

+	if(m_Target != 0) {

+		pos = m_Target->GetPosition();

+		if((pos - *m_Pos).Length() > m_SightDistance || LineOfSight.Trace(*m_Pos,(pos - *m_Pos), (int)(pos - *m_Pos).Length())){

+			//LOG("Losing Player: %5.5f",(pos - *m_Pos).Length());

+			EventLosePlayer();

+		}

+	} else {

+		LOG("Enemy went poof");

+		EventLosePlayer();

+	}

+}

+

+//What to do if player is seen

+//default to change state to chasing

+void cMonster::EventSeePlayer(cEntity *a_SeenPlayer) {

+	m_Target = a_SeenPlayer;

+	AddReference( m_Target );

+	if(m_EMPersonality == AGGRESSIVE) {

+		m_EMState = CHASING;

+	}

+	if(m_EMPersonality == COWARDLY) {

+		m_EMState = ESCAPING;

+	}

+	//LOG("Saw Player: %s",GetState());

+}

+

+void cMonster::EventLosePlayer(){

+	Dereference(m_Target);

+	m_Target = 0;

+	//LOG("Lost Player");

+	m_EMState = IDLE;

+}

+

+//What to do if in Idle State

+void cMonster::InStateIdle(float a_Dt) {

+	idle_interval += a_Dt;

+	if(idle_interval > 1) { //at this interval the results are predictable

+		int rem = rand()%6 + 1;

+		//LOG("Moving: int: %3.3f rem: %i",idle_interval,rem);

+		idle_interval = 0;

+		Vector3f Dist;

+		Dist.x = (float)((rand()%11)-5);

+		Dist.z = (float)((rand()%11)-5);

+		if( Dist.SqrLength() > 2  && rem >= 3)

+		{

+			m_Destination->x = (float)(m_Pos->x + Dist.x);

+			m_Destination->z = (float)(m_Pos->z + Dist.z);

+			m_Destination->y = (float)cRoot::Get()->GetWorld()->GetHeight( (int)m_Destination->x, (int)m_Destination->z ) + 1.2f;

+			MoveToPosition( *m_Destination );

+		}

+	}

+}

+

+//What to do if On fire

+void cMonster::InStateBurning(float a_Dt) {

+	m_FireDamageInterval += a_Dt;

+	char block = cRoot::Get()->GetWorld()->GetBlock( (int)m_Pos->x, (int)m_Pos->y, (int)m_Pos->z );

+	char bblock = cRoot::Get()->GetWorld()->GetBlock( (int)m_Pos->x, (int)m_Pos->y -1, (int)m_Pos->z );	

+	if(m_FireDamageInterval > 1) {

+

+		m_FireDamageInterval = 0;

+		int rem = rand()%3 + 1; //Burn most of the time

+		if(rem >= 2) {

+			//printf("OUCH burning!!!\n");

+			TakeDamage(1, this);

+		}

+		m_BurnPeriod++;

+		if(block == E_BLOCK_LAVA || block == E_BLOCK_STATIONARY_LAVA || block == E_BLOCK_FIRE

+			|| bblock == E_BLOCK_LAVA || bblock == E_BLOCK_STATIONARY_LAVA || bblock == E_BLOCK_FIRE)

+			m_BurnPeriod = 0;

+		

+		if(m_BurnPeriod > 5) {

+			

+			cChunk* InChunk = cRoot::Get()->GetWorld()->GetChunkUnreliable( m_ChunkX, m_ChunkY, m_ChunkZ );

+			m_EMMetaState = NORMAL;

+			cPacket_Metadata md(NORMAL, GetUniqueID());

+			//md.m_UniqueID = GetUniqueID();

+			InChunk->Broadcast(md);

+			m_BurnPeriod = 0;

+			

+		}

+	}

+	

+}

+

+//What to do if in Chasing State

+//This state should always be defined in each child class

+void cMonster::InStateChasing(float a_Dt) {

+	(void)a_Dt;

+}

+

+//What to do if in Escaping State

+void cMonster::InStateEscaping(float a_Dt) {

+	(void)a_Dt;

+	if(m_Target) {

+		Vector3d newloc = *m_Pos;

+		newloc.x = (m_Target->GetPosition().x < newloc.x)? (newloc.x + m_SightDistance): (newloc.x - m_SightDistance);

+		newloc.z = (m_Target->GetPosition().z < newloc.z)? (newloc.z + m_SightDistance): (newloc.z - m_SightDistance);

+		MoveToPosition(newloc);

+	} else {

+		m_EMState = IDLE; //this shouldnt be required but just to be safe

+	}

+}

+

+

+//Do attack here

+//a_Dt is passed so we can set attack rate

+void cMonster::Attack(float a_Dt) {

+	m_AttackInterval += a_Dt*m_AttackRate;

+	if(m_Target != 0 && m_AttackInterval > 3.0) { //Setting this higher gives us more wiggle room for attackrate

+		//LOG("ATTACK!");

+		m_AttackInterval = 0.0;

+		((cPawn *)m_Target)->TakeDamage((int)m_AttackDamage,this);

+	}

+}

+//----Change Entity MetaData

+void cMonster::CheckMetaDataBurn() {

+	char block = cRoot::Get()->GetWorld()->GetBlock( (int)m_Pos->x, (int)m_Pos->y, (int)m_Pos->z );

+	char bblock = cRoot::Get()->GetWorld()->GetBlock( (int)m_Pos->x, (int)m_Pos->y -1, (int)m_Pos->z );	

+	if(m_bBurnable && m_EMMetaState != BURNING && (block == E_BLOCK_LAVA ||  block == E_BLOCK_STATIONARY_LAVA || block == E_BLOCK_FIRE

+				 || bblock == E_BLOCK_LAVA ||  bblock == E_BLOCK_STATIONARY_LAVA || bblock == E_BLOCK_FIRE)) {

+		cChunk* InChunk = cRoot::Get()->GetWorld()->GetChunkUnreliable( m_ChunkX, m_ChunkY, m_ChunkZ );

+		if(!InChunk)

+			return;

+		//printf("I should burn");

+		m_EMMetaState = BURNING;

+		cPacket_Metadata md(BURNING,GetUniqueID());

+		InChunk->Broadcast(md);

+	}

+}

+

+//----Debug

+

+void cMonster::ListMonsters() {

+

+	cWorld::EntityList Entities = cRoot::Get()->GetWorld()->GetEntities();

+	cRoot::Get()->GetWorld()->LockEntities();

+	for( cWorld::EntityList::iterator itr = Entities.begin(); itr != Entities.end(); ++itr) {

+		if((*itr)->GetEntityType() == cEntity::E_ENTITY){

+			LOG("In state: %s type: %i attack rate: %i",((cMonster *)(*itr))->GetState(), ((cMonster *)(*itr))->GetMobType(),((cMonster *)(*itr))->GetAttackRate());

+			

+		}

+	}

+	cRoot::Get()->GetWorld()->UnlockEntities();

+}

+

+//Checks for Players close by and if they are visible

+void cMonster::ListClosePlayers(cMonster *m) {

+	int tries = 0;

+	cTracer LineOfSight(cRoot::Get()->GetWorld() );

+	cWorld::EntityList Entities = cRoot::Get()->GetWorld()->GetEntities();

+	for( cWorld::EntityList::iterator itr = Entities.begin(); itr != Entities.end(); ++itr) {

+		tries++;

+		if((*itr)->GetEntityType() == cEntity::E_PLAYER){

+			Vector3f pos = (*itr)->GetPosition();

+			if((pos - *(m->m_Pos)).Length() <= m->m_SightDistance){

+				if(!LineOfSight.Trace(*(m->m_Pos),(pos - *(m->m_Pos)),(int)(pos - *(m->m_Pos)).Length())){

+					//LOG("I SEE PLAYER !!!!!!!!!!!!!!!!!");

+					m->EventSeePlayer(*itr);

+					return; //get the first one in sight later we can reiterate and check

+						//for the closest out of all that match and make it more realistic

+						

+				}

+			}

+			

+		}

+		if(tries > 100) {

+			//LOG("I Give Up");

+			m->EventLosePlayer();

+			return;

+		}

+	}

+}

+

+void cMonster::GetMonsterConfig(const char* pm_name) {

+	(void)pm_name;

+}

+

+void cMonster::SetAttackRate(int ar) {

+	m_AttackRate = (float)ar;

+}

+void cMonster::SetAttackRange(float ar) {

+	m_AttackRange = ar;

+}

+void cMonster::SetAttackDamage(float ad) {

+	m_AttackDamage = ad;

+}

+void cMonster::SetSightDistance(float sd) {

+	m_SightDistance = sd;

+}