diff --git a/src/world/Encounter/EncounterTimeline.cpp b/src/world/Encounter/EncounterTimeline.cpp
new file mode 100644
index 00000000..8dc1a45f
--- /dev/null
+++ b/src/world/Encounter/EncounterTimeline.cpp
@@ -0,0 +1,275 @@
+#include "EncounterFight.h"
+#include "EncounterTimeline.h"
+
+#include "../Actor/BNpc.h"
+#include "../Actor/Chara.h"
+
+namespace Sapphire
+{
+  void EncounterTimeline::EncounterConditionHp::from_json( nlohmann::json& json, EncounterPhasePtr pPhase, EncounterConditionId conditionId )
+  {
+    EncounterTimepointCondition::from_json( json, pPhase, conditionId );
+
+    auto params = json.at( "params" ).get< std::vector< uint32_t > >();
+
+    this->actorId = params[ 0 ];
+
+    if( conditionId == EncounterConditionId::HpPctLessThan )
+      this->hp.val = params[ 1 ];
+    else
+      this->hp.min = params[ 1 ], this->hp.max = params[ 2 ];
+  }
+
+  bool EncounterTimeline::EncounterConditionHp::canExecute( EncounterFightPtr pFight, uint64_t time )
+  {
+    auto pBNpc = pFight->getBNpc( actorId );
+    if( !pBNpc )
+      return false;
+
+    // todo: check time elapsed
+
+    switch( m_conditionId )
+    {
+      case EncounterConditionId::HpPctLessThan:
+        return pBNpc->getHpPercent() < hp.val;
+      case EncounterConditionId::HpPctBetween:
+      {
+        auto hpPct = pBNpc->getHpPercent();
+        return hpPct >= hp.min && hpPct <= hp.max;
+      }
+    }
+    return false;
+  };
+
+  void EncounterTimeline::EncounterConditionDirectorVar::from_json( nlohmann::json& json, EncounterPhasePtr pPhase, EncounterConditionId conditionId )
+  {
+    EncounterTimepointCondition::from_json( json, pPhase, conditionId );
+
+    auto params = json.at( "params" ).get< std::vector< uint32_t > >();
+
+    this->directorVar = params[ 0 ];
+    this->value = params[ 1 ];
+  }
+
+  bool EncounterTimeline::EncounterConditionDirectorVar::canExecute( EncounterFightPtr pFight, uint64_t time )
+  {
+    switch( m_conditionId )
+    {
+      case EncounterConditionId::DirectorVarEquals:
+        return false; // pFight->getDirectorVar( directorVar ) == value;
+      case EncounterConditionId::DirectorVarGreaterThan:
+        return false; // pFight->getDirectorVar( directorVar ) > value;
+    }
+    return false;
+  }
+
+  EncounterTimeline::EncounterTimelineInfo EncounterTimeline::buildEncounterTimeline( uint32_t encounterId, bool reload )
+  {
+    static std::map< uint32_t, EncounterTimelineInfo > cache = {};
+    const static std::map< std::string, EncounterTimepointDataType > timepointTypeMap =
+    {
+      { "idle",               EncounterTimepointDataType::Idle },
+      { "castAction",         EncounterTimepointDataType::CastAction },
+      { "moveTo",             EncounterTimepointDataType::MoveTo },
+      { "logMessage",         EncounterTimepointDataType::LogMessage },
+      { "setDirectorVar",     EncounterTimepointDataType::SetDirectorVar },
+      { "addStatusEffect",    EncounterTimepointDataType::AddStatusEffect },
+      { "removeStatusEffect", EncounterTimepointDataType::RemoveStatusEffect }
+    };
+
+    const static std::map< std::string, EncounterTimepointCallbackType > callbackTypeMap =
+    {
+      { "onActionInit",       EncounterTimepointCallbackType::OnActionInit },
+      { "onActionStart",      EncounterTimepointCallbackType::OnActionStart },
+      { "onActionInterrupt",  EncounterTimepointCallbackType::OnActionInterrupt },
+      { "onActionExecute",    EncounterTimepointCallbackType::OnActionExecute },
+    };
+
+    const static std::map< std::string, EncounterConditionId > conditionIdMap =
+    {
+      { "hpPctLessThan",          EncounterConditionId::HpPctLessThan },
+      { "hpPctBetween",           EncounterConditionId::HpPctBetween },
+      { "directorVarEquals",      EncounterConditionId::DirectorVarEquals },
+      { "directorVarGreaterThan", EncounterConditionId::DirectorVarGreaterThan },
+    };
+
+    EncounterTimelineInfo info;
+    if( cache.find( encounterId ) != cache.end() && !reload )
+      return cache.at( encounterId );
+    /*
+      array of states e.g.
+      [
+        pushStates:
+        [
+          {
+            condition: "HpPctBetween", params:[ 20, 25 ], state: "phase1", loop: true
+          },
+          {
+            condition: "RNGMinMax", params:[ 0, 10, 5 ], state: "phase1", loop: true
+          }
+        ],
+        states:
+        [
+          {
+            name: "idle",
+            type: "idle",
+            duration: 5000,
+            overrideFlags: ["INVULNERABLE"],
+            data: {}
+          }
+          {
+            name: "phase1",
+            type: "action",
+            data: {
+              actionId: 150,
+              onFinish: {
+                type: "addStatusEffect",
+                data: {
+                  selectFilter: "self",
+                  statusEffectId: 70,
+                  duration: 30000
+                }
+              }
+            }
+          }
+        ]
+      ]
+          /*
+  *
+    class HpPercentCondition : EncounterTimepointCondition
+    {
+      EncounterTimepointConditionId m_type;
+      std::vector< uint32_t > m_params
+      
+      HpPercentCondition( EncounterTimepointConditionId conditionId std::vector< uint32_t params ) : m_type( conditionId ), m_params( params ){}
+      bool isConditionMet( uint32_t bossHpPct )
+      {
+        switch( m_type )
+        {
+          case EncounterTimepointConditionId::HpLessThanPct:
+            return bossHpPct < m_params[0];
+          case EncounterTimepointConditionId::HpBetweenPct:
+            return bossHpPct >= m_params[0] && bossHpPct <= m_params[1];
+        }
+        return false;
+      }
+    }
+    class RngCondition : EncounterTimepointCondition
+    {
+      EncounterTimepointConditionId m_type;
+      std::vector< uint32_t > m_params
+      
+      RngCondition( EncounterTimepointConditionId conditionId std::vector< uint32_t params ) : m_type( conditionId ), m_params( params ){}
+      bool isConditionMet( uint32_t shit )
+      {
+        switch( m_type )
+        {
+          case EncounterTimepointConditionId::RngMinMax:
+            return RNGMgr::generate( params[0], params[1] ) == params[2];
+        }
+        return false;
+      }
+    }
+    // Main encounter script
+    EncounterFight::update()
+    {
+      auto pStateCondition = m_stateConditions.pop();
+      
+      switch( pStateCondition->getType() )
+      {
+        case EncounterTimepointConditionId::HpBetweenPct:
+          if (((HpPercentCondition*)pStateCondition)->isConditionMet( bossHpPct ) )
+            pStateCondition->execute( someDutyInstanceInfoHere );
+          else if( !pStateCondition->hasExecuted() || pStateCondition->canLoop() )
+            m_stateConditions.push( pStateCondition );
+      }
+    }
+
+  */
+
+    std::string encounter_name( fmt::format( std::string( "data/EncounterTimelines/EncounterTimeline%u.json" ), encounterId ) );
+
+    std::fstream f( encounter_name );
+
+    if( !f.is_open() )
+      return {};
+
+    auto json = nlohmann::json::parse( f );
+
+    std::map< std::string, EncounterPhasePtr > phaseNameMap;
+
+
+    for( const auto& phaseJ : json.at( "phases" ).items() )
+    {
+      auto phaseV = phaseJ.value();
+      const auto id = phaseV.at( "id" ).get< uint32_t >();
+      const auto& phaseName = phaseV.at( "name" ).get< std::string >();
+      const auto& timepoints = phaseV.at( "timepoints" );
+
+      EncounterPhasePtr pPhase = std::make_shared< EncounterPhase >();
+
+      for( const auto& timepoint : timepoints.items() )
+      {
+       
+
+        
+      }
+
+      if( phaseNameMap.find( phaseName ) != phaseNameMap.end() )
+        throw std::runtime_error( fmt::format( std::string( "EncounterTimeline::buildEncounterTimeline - duplicate phase by name: %s" ), phaseName ) );
+
+      phaseNameMap.emplace( std::make_pair( phaseName, pPhase ) );
+    }
+    for( const auto& pcJ : json.at( "phaseConditions" ).items() )
+    {
+      auto pcV = pcJ.value();
+      auto conditionName = pcV.at( "condition" ).get< std::string>();
+      auto description = pcV.at( "description" ).get< std::string >();
+      auto loop = pcV.at( "loop" ).get< bool >();
+      auto phaseRef = pcV.at( "phase" ).get< std::string >();
+
+      EncounterPhasePtr pPhase;
+      EncounterConditionId conditionId;
+
+      // make sure condition exists
+      if( auto it = conditionIdMap.find( conditionName ); it != conditionIdMap.end() )
+        conditionId = it->second;
+      else
+        throw std::runtime_error( fmt::format( std::string( "EncounterTimeline::buildEncounterTimeline - no condition id found by name: %s" ), conditionName ) );
+
+      // make sure phase we're referencing exists
+      if( auto it = phaseNameMap.find( phaseRef ); it != phaseNameMap.end() )
+        pPhase = it->second;
+      else
+        throw std::runtime_error( fmt::format( std::string( "EncounterTimeline::buildEncounterTimeline - no state found by name: %s" ), phaseRef ) );
+
+      // build the condition
+      EncounterTimepointConditionPtr pCondition;
+      switch( conditionId )
+      {
+        case EncounterConditionId::HpPctLessThan:
+        case EncounterConditionId::HpPctBetween:
+        {
+          auto pHpCondition = std::make_shared< EncounterConditionHp >();
+          pHpCondition->from_json( pcV, pPhase, conditionId );
+        }
+        break;
+        case EncounterConditionId::DirectorVarEquals:
+        case EncounterConditionId::DirectorVarGreaterThan:
+        {
+          auto pDirectorCondition = std::make_shared< EncounterConditionDirectorVar >();
+          pDirectorCondition->from_json( pcV, pPhase, conditionId );
+        }
+        break;
+        default:
+          break;
+      }
+      info.push( pCondition );
+    }
+    if( reload )
+      cache[ encounterId ] = info;
+    else
+      cache.emplace( std::make_pair( encounterId, info ) );
+    return info;
+  }
+}// namespace Sapphire
\ No newline at end of file
diff --git a/src/world/Encounter/EncounterTimeline.h b/src/world/Encounter/EncounterTimeline.h
new file mode 100644
index 00000000..fc590bf4
--- /dev/null
+++ b/src/world/Encounter/EncounterTimeline.h
@@ -0,0 +1,224 @@
+#include <fstream>
+#include <memory>
+#include <map>
+#include <optional>
+#include <stack>
+#include <stdexcept>
+#include <string>
+#include <vector>
+
+#include <nlohmann/json.hpp>
+
+namespace Sapphire
+{
+  static class EncounterTimeline
+  {
+  public:
+    // EncounterFight::OnTick() { switch EncounterTimepointConditionId }
+    enum class EncounterConditionId : uint32_t
+    {
+      HpPctLessThan,
+      HpPctBetween,
+      DirectorVarEquals,
+      DirectorVarGreaterThan
+    };
+
+    // TODO: what should this do?
+    enum class EncounterTimepointOverrideFlags
+    {
+      None,
+      Invulnerable
+    };
+
+    enum class EncounterTimepointDataType : uint32_t
+    {
+      Idle,
+      CastAction,
+      MoveTo,
+      LogMessage,
+      BattleTalk,
+      SetDirectorVar,
+      AddStatusEffect,
+      RemoveStatusEffect
+    };
+
+    enum class EncounterTimepointCallbackType : uint32_t
+    {
+      OnActionInit,
+      OnActionStart,
+      OnActionInterrupt,
+      OnActionExecute
+    };
+
+    enum class TargetSelectFilterIds
+    {
+      Self,
+      Tank,
+      Healer,
+      Dps,
+      DpsMelee,
+      DpsRanged,
+      Furthest,
+
+      Aggro1,
+      Aggro2
+    };
+
+    enum class MoveType
+    {
+      WalkPath,
+      Teleport
+    };
+
+    struct TargetSelectFilter
+    {
+      TargetSelectFilterIds m_flags;
+    };
+
+
+    // Generated Structures
+
+    // Generated Callback Structure
+    struct EncounterTimepointCallbackData :
+      public std::enable_shared_from_this< EncounterTimepointCallbackData >
+    {
+      EncounterTimepointCallbackType m_type;
+    };
+    using EncounterTimepointCallbackDataPtr = std::shared_ptr< EncounterTimepointCallbackData >;
+    using EncounterTimepointCallbacks = std::map< EncounterTimepointCallbackType, EncounterTimepointCallbackDataPtr >;
+
+
+    // Generated State Objects
+    struct EncounterTimepointData :
+      public std::enable_shared_from_this< EncounterTimepointData >
+    {
+      EncounterTimepointDataType m_type;
+    };
+    using EncounterTimepointDataPtr = std::shared_ptr< EncounterTimepointData >;
+
+
+    // Generated State Data Objects
+    struct EncounterTimepointDataStatusEffect : EncounterTimepointData
+    {
+      uint32_t m_statusEffectId;
+      TargetSelectFilter m_targetFilter;
+      uint32_t m_durationMs;
+    };
+
+    struct EncounterTimepointDataAction : EncounterTimepointData
+    {
+      uint32_t m_actionId;
+      EncounterTimepointCallbacks m_callbacks;
+    };
+
+    struct EncounterTimepointDataMoveTo : EncounterTimepointData
+    {
+      float x, y, z, rot;
+    };
+
+    struct EncounterTimepoint :
+      public std::enable_shared_from_this< EncounterTimepoint >
+    {
+    public:
+      EncounterTimepointDataType m_type;
+      uint32_t m_duration;
+      EncounterTimepointOverrideFlags m_overrideFlags;
+      EncounterTimepointDataPtr m_pData;
+      std::string m_description;
+
+      // switch( m_type )
+      virtual void execute( EncounterFightPtr pFight, uint64_t time );
+    };
+    using EncounterTimepointPtr = std::shared_ptr< EncounterTimepoint >;
+
+    class EncounterPhase :
+      public std::enable_shared_from_this< EncounterPhase >
+    {
+    public:
+      std::string m_name;
+      std::map< std::string, EncounterTimepointPtr > m_timepoints;
+      uint64_t m_startTime{ 0 };
+      uint64_t m_currTime{ 0 };
+      void execute( EncounterFightPtr pFight, uint64_t time )
+      {
+        uint64_t durationMs = time - m_currTime;
+        for( const auto& timepoint : m_timepoints )
+          timepoint.second->execute( pFight, time );
+
+        if( m_startTime == 0 )
+          m_startTime = time;
+
+        m_currTime = time;
+      }
+    };
+    using EncounterPhasePtr = std::shared_ptr< EncounterPhase >;
+
+    class EncounterTimepointCondition :
+      public std::enable_shared_from_this< EncounterTimepointCondition >
+    {
+    public:
+      EncounterConditionId m_conditionId{ 0 };
+      EncounterPhasePtr m_pPhase{ nullptr };
+      bool m_loop{ false };
+      uint64_t m_startTime{ 0 };
+      uint32_t m_cooldown{ 0 };
+
+      EncounterTimepointCondition() {}
+      ~EncounterTimepointCondition() {}
+
+      virtual void from_json( nlohmann::json& json, EncounterPhasePtr pPhase, EncounterConditionId conditionId )
+      {
+        this->m_conditionId = conditionId;
+        this->m_loop = json.at( "loop" ).get< bool >();
+        this->m_cooldown = json.at( "cooldown" ).get< uint32_t >();
+        this->m_pPhase = pPhase;
+      }
+
+      void execute( EncounterFightPtr pFight, uint64_t time )
+      {
+        m_startTime = time;
+        m_pPhase->execute( pFight, time );
+      };
+
+      virtual bool canExecute( EncounterFightPtr pFight, uint64_t time )
+      {
+        return false;
+      };
+
+    };
+    using EncounterTimepointConditionPtr = std::shared_ptr< EncounterTimepointCondition >;
+
+    class EncounterConditionHp : EncounterTimepointCondition
+    {
+    public:
+      uint32_t actorId;
+      union
+      {
+        uint8_t val;
+        struct
+        {
+          uint8_t min, max; 
+        };
+      } hp;
+
+      void from_json( nlohmann::json& json, EncounterPhasePtr pPhase, EncounterConditionId conditionId );
+      bool canExecute( EncounterFightPtr pFight, uint64_t time ) override;
+    };
+
+    class EncounterConditionDirectorVar : EncounterTimepointCondition
+    {
+    public:
+      uint32_t directorVar;
+      uint32_t value;
+
+      void from_json( nlohmann::json& json, EncounterPhasePtr pPhase, EncounterConditionId conditionId );
+      bool canExecute( EncounterFightPtr pFight, uint64_t time ) override;
+    };
+
+    using EncounterTimelineInfo = std::stack< EncounterTimepointConditionPtr >;
+
+  public:
+
+    EncounterTimelineInfo buildEncounterTimeline( uint32_t encounterId, bool reload = false );
+  };
+}// namespace Sapphire
\ No newline at end of file