//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============// // // Purpose: // //=============================================================================// #ifndef PATHTRACK_H #define PATHTRACK_H #ifdef _WIN32 #pragma once #endif #include "entityoutput.h" //----------------------------------------------------------------------------- // Spawnflag for CPathTrack //----------------------------------------------------------------------------- #define SF_PATH_DISABLED 0x00000001 //#define SF_PATH_FIREONCE 0x00000002 #define SF_PATH_ALTREVERSE 0x00000004 #define SF_PATH_DISABLE_TRAIN 0x00000008 #define SF_PATH_TELEPORT 0x00000010 #define SF_PATH_ALTERNATE 0x00008000 enum TrackOrientationType_t { TrackOrientation_Fixed = 0, TrackOrientation_FacePath, TrackOrientation_FacePathAngles, }; //----------------------------------------------------------------------------- // Paths! //----------------------------------------------------------------------------- class CPathTrack : public CServerOnlyPointEntity { DECLARE_CLASS( CPathTrack, CServerOnlyPointEntity ); public: CPathTrack(); void Spawn( void ); void Activate( void ); void DrawDebugGeometryOverlays(); void ToggleAlternatePath( void ); void EnableAlternatePath( void ); void DisableAlternatePath( void ); bool HasAlternathPath() const; void TogglePath( void ); void EnablePath( void ); void DisablePath( void ); static CPathTrack *ValidPath( CPathTrack *ppath, int testFlag = true ); // Returns ppath if enabled, NULL otherwise CPathTrack *GetNextInDir( bool bForward ); CPathTrack *GetNext( void ); CPathTrack *GetPrevious( void ); CPathTrack *Nearest( const Vector &origin ); //CPathTrack *LookAhead( Vector &origin, float dist, int move ); CPathTrack *LookAhead( Vector &origin, float dist, int move, CPathTrack **pNextNext = NULL ); TrackOrientationType_t GetOrientationType(); QAngle GetOrientation( bool bForwardDir ); CPathTrack *m_pnext; CPathTrack *m_pprevious; CPathTrack *m_paltpath; float GetRadius() const { return m_flRadius; } // These four methods help for circular path checking. Call BeginIteration // before iterating, EndInteration afterwards. Call Visit on each path in the // list. Then you can use HasBeenVisited to see if you've visited the node // already, which means you've got a circular or lasso path. You can use the // macro BEGIN_PATH_TRACK_ITERATION below to simplify the calls to // BeginInteration + EndIteration. static void BeginIteration(); static void EndIteration(); void Visit(); bool HasBeenVisited() const; private: void Project( CPathTrack *pstart, CPathTrack *pend, Vector &origin, float dist ); void SetPrevious( CPathTrack *pprevious ); void Link( void ); static CPathTrack *Instance( edict_t *pent ); void InputPass( inputdata_t &inputdata ); void InputToggleAlternatePath( inputdata_t &inputdata ); void InputEnableAlternatePath( inputdata_t &inputdata ); void InputDisableAlternatePath( inputdata_t &inputdata ); void InputTogglePath( inputdata_t &inputdata ); void InputEnablePath( inputdata_t &inputdata ); void InputDisablePath( inputdata_t &inputdata ); DECLARE_DATADESC(); float m_flRadius; float m_length; string_t m_altName; int m_nIterVal; TrackOrientationType_t m_eOrientationType; COutputEvent m_OnPass; static int s_nCurrIterVal; static bool s_bIsIterating; }; //----------------------------------------------------------------------------- // Used to make sure circular iteration works all nice //----------------------------------------------------------------------------- #define BEGIN_PATH_TRACK_ITERATION() CPathTrackVisitor _visit class CPathTrackVisitor { public: CPathTrackVisitor() { CPathTrack::BeginIteration(); } ~CPathTrackVisitor() { CPathTrack::EndIteration(); } }; #endif // PATHTRACK_H