1 files changed, 590 insertions, 0 deletions

diff --git a/source/Mobs/Monster.cpp b/source/Mobs/Monster.cpp
new file mode 100644
index 000000000..9142bd6a8
--- /dev/null
+++ b/source/Mobs/Monster.cpp
@@ -0,0 +1,590 @@
+
+#include "Globals.h"  // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#include "Monster.h"
+#include "../cRoot.h"
+#include "../cServer.h"
+#include "../cClientHandle.h"
+#include "../cWorld.h"
+#include "../cPlayer.h"
+#include "../Defines.h"
+#include "../cMonsterConfig.h"
+#include "../MersenneTwister.h"
+
+#include "../Vector3f.h"
+#include "../Vector3i.h"
+#include "../Vector3d.h"
+
+#include "../cTracer.h"
+#include "../../iniFile/iniFile.h"
+
+/*
+#ifndef _WIN32
+	#include <unistd.h>
+#endif
+*/
+
+
+
+
+
+cMonster::cMonster()
+	: m_Target(0)
+	, m_bMovingToDestination(false)
+	, m_DestinationTime( 0 )
+	, m_Gravity( -9.81f)
+	, 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(1.0f)
+	, m_AttackRange(5.0f)
+	, m_AttackInterval(0)
+	, m_AttackRate(3)
+	, idle_interval(0)
+{
+	LOG("cMonster::cMonster()");
+	LOG("In state: %s", GetState());
+
+	m_bBurnable = true;
+	m_MetaData = NORMAL;
+}
+
+
+
+
+
+cMonster::~cMonster()
+{
+	LOG("cMonster::~cMonster()");
+}
+
+
+
+
+
+bool cMonster::IsA( const char* a_EntityType )
+{
+	if( strcmp( a_EntityType, "cMonster" ) == 0 ) return true;
+	return cPawn::IsA( a_EntityType );
+}
+
+
+
+
+
+void cMonster::SpawnOn(cClientHandle & a_Client)
+{
+	a_Client.SendSpawnMob(*this);
+}
+
+
+
+
+
+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)
+{
+	cPawn::Tick(a_Dt);
+
+	if( m_Health <= 0 )
+	{
+		m_DestroyTimer += a_Dt/1000;
+		if( m_DestroyTimer > 1 )
+		{
+			Destroy();
+		}
+		return;
+	}
+
+	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;
+
+			if (m_EMState == ESCAPING)
+			{	//Runs Faster when escaping :D otherwise they just walk away
+				m_Speed.x *= 2.f;
+				m_Speed.z *= 2.f;
+			}
+		}
+		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)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 );
+	}
+	
+	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);
+	}
+}
+
+
+
+
+
+void cMonster::ReplicateMovement()
+{
+	if (m_bDirtyOrientation && !m_bDirtyPosition)
+	{
+		m_World->BroadcastEntLook(*this);
+		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
+		)
+		{
+			// LOGD("Teleported %f", sqrtf(SqrDist) );
+			m_World->BroadcastTeleportEntity(*this);
+			m_TimeLastTeleportPacket = cWorld::GetTime();
+		}
+		else
+		{
+			// Relative move sucks balls! It's always wrong wtf!
+			if (m_bDirtyOrientation)
+			{
+				m_World->BroadcastEntRelMoveLook(*this, (char)(DiffX * 32), (char)(DiffY * 32), (char)(DiffZ * 32));
+				m_bDirtyOrientation = false;
+			}
+			else
+			{
+				m_World->BroadcastEntRelMove(*this, (char)(DiffX * 32), (char)(DiffY * 32), (char)(DiffZ * 32));
+			}
+		}
+		m_LastPosX = GetPosX();
+		m_LastPosY = GetPosY();
+		m_LastPosZ = GetPosZ();
+		m_bDirtyPosition = false;
+	}
+
+	MoveToCorrectChunk();
+}
+
+
+
+
+
+void cMonster::HandlePhysics(float a_Dt)
+{
+	if( m_bOnGround ) // check if it's still on the ground
+	{
+		cWorld* World = 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( 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 * 0.2f;
+
+			}
+			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 );
+}
+
+
+
+
+
+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";
+		case ATTACKING: return "Attacking";
+		case CHASING:   return "Chasing";
+		default:        return "Unknown";
+	}
+}
+
+
+
+
+
+// for debugging
+void cMonster::SetState(const AString & a_State)
+{
+	if (a_State.compare("Idle") == 0)
+	{
+		m_EMState = IDLE;
+	}
+	else if (a_State.compare("Attacking") == 0)
+	{
+		m_EMState = ATTACKING;
+	}
+	else if (a_State.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()
+{
+	cPlayer *Closest = FindClosestPlayer();
+
+	if (Closest)
+	{
+		EventSeePlayer(Closest);
+	}
+}
+
+
+
+
+
+void cMonster::CheckEventLostPlayer()
+{
+	Vector3f pos;
+	cTracer LineOfSight(GetWorld());
+	
+	if (m_Target != NULL)
+	{
+		pos = m_Target->GetPosition();
+		if ((pos - m_Pos).Length() > m_SightDistance || LineOfSight.Trace(m_Pos,(pos - m_Pos), (int)(pos - m_Pos).Length()))
+		{
+			EventLosePlayer();
+		}
+	}
+	else
+	{
+		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 );
+}
+
+
+
+
+
+void cMonster::EventLosePlayer()
+{
+	Dereference(m_Target);
+	m_Target = 0;
+	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
+		MTRand r1;
+		int rem = r1.randInt()%6 + 1;
+		// LOGD("Moving: int: %3.3f rem: %i",idle_interval,rem);
+		idle_interval -= 1;		// So nothing gets dropped when the server hangs for a few seconds
+		Vector3f Dist;
+		Dist.x = (float)((r1.randInt()%11)-5);
+		Dist.z = (float)((r1.randInt()%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)GetWorld()->GetHeight( (int)m_Destination.x, (int)m_Destination.z ) + 1.2f;
+			MoveToPosition( m_Destination );
+		}
+	}
+}
+
+
+
+
+
+// What to do if in Chasing State
+// This state should always be defined in each child class
+void cMonster::InStateChasing(float a_Dt)
+{
+	UNUSED(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 != NULL) && (m_AttackInterval > 3.0))
+	{
+		// Setting this higher gives us more wiggle room for attackrate
+		m_AttackInterval = 0.0;
+		((cPawn *)m_Target)->TakeDamage((int)m_AttackDamage, this);
+	}
+}
+
+
+
+
+
+// Checks for Players close by and if they are visible return the closest
+cPlayer * cMonster::FindClosestPlayer(void)
+{
+	return m_World->FindClosestPlayer(m_Pos, m_SightDistance);
+}
+
+
+
+
+
+void cMonster::GetMonsterConfig(const char* pm_name)
+{
+	cRoot::Get()->GetMonsterConfig()->AssignAttributes(this, 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;
+}
+
+
+
+
+
+void cMonster::AddRandomDropItem(cItems & a_Drops, unsigned int a_Min, unsigned int a_Max, short a_Item, short a_ItemHealth)
+{
+	MTRand r1;
+	int Count = r1.randInt() % (a_Max + 1 - a_Min) + a_Min;
+	if (Count > 0)
+	{
+		a_Drops.push_back(cItem(a_Item, Count, a_ItemHealth));
+	}
+}
+
+
+
+