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56 lines
1.6 KiB
56 lines
1.6 KiB
//========= Copyright Valve Corporation, All rights reserved. ============// |
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// |
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// Purpose: |
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// |
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// $NoKeywords: $ |
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//=============================================================================// |
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#ifndef CHANGEFRAMELIST_H |
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#define CHANGEFRAMELIST_H |
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#ifdef _WIN32 |
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#pragma once |
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#endif |
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#include "bitbuf.h" |
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// This class holds the last tick (from host_tickcount) that each property in |
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// a datatable changed at. |
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// |
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// It provides fast access to a list of properties that changed within a certain frame range. |
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// |
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// These are created once per entity per frame. Since usually a very small percentage of an |
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// entity's properties actually change each frame, this allows you to get a small set of |
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// properties to delta for each client. |
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abstract_class IChangeFrameList |
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{ |
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public: |
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// Call this to delete the object. |
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virtual void Release() = 0; |
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// This just returns the value you passed into AllocChangeFrameList(). |
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virtual int GetNumProps() = 0; |
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// Sets the change frames for the specified properties to iFrame. |
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virtual void SetChangeTick( const int *pPropIndices, int nPropIndices, const int iTick ) = 0; |
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// Get a list of all properties with a change frame > iFrame. |
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virtual int GetPropsChangedAfterTick( int iTick, int *iOutProps, int nMaxOutProps ) = 0; |
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virtual IChangeFrameList* Copy() = 0; // return a copy of itself |
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protected: |
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// Use Release to delete these. |
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virtual ~IChangeFrameList() {} |
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}; |
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// Call to initialize. Pass in the number of properties this CChangeFrameList will hold. |
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// All properties will be initialized to iCurFrame. |
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IChangeFrameList* AllocChangeFrameList( int nProperties, int iCurFrame ); |
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#endif // CHANGEFRAMELIST_H
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