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155 lines
4.6 KiB
155 lines
4.6 KiB
![]()
4 years ago
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//========= 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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#if !defined( HUDELEMENT_H )
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#define HUDELEMENT_H
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#ifdef _WIN32
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#pragma once
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#endif
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#include "hud.h"
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#include "hud_element_helper.h"
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#include "networkvar.h"
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#include "GameEventListener.h"
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#include "tier0/memdbgon.h"
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#undef new
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//-----------------------------------------------------------------------------
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// Purpose: Base class for all hud elements
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//-----------------------------------------------------------------------------
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class CHudElement : public CGameEventListener
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{
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public:
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DECLARE_CLASS_NOBASE( CHudElement );
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// constructor - registers object in global list
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CHudElement( const char *pElementName );
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// destructor - removes object from the global list
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virtual ~CHudElement();
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// called when the Hud is initialised (whenever the DLL is loaded)
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virtual void Init( void ) { return; }
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// called whenever the video mode changes, and whenever Init() would be called, so the hud can vid init itself
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virtual void VidInit( void ) { return; }
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// LevelInit's called whenever a new level is starting
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virtual void LevelInit( void ) { return; };
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// LevelShutdown's called whenever a level is finishing
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virtual void LevelShutdown( void ) { return; };
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// called whenever the hud receives "reset" message, which is (usually) every time the client respawns after getting killed
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virtual void Reset( void ) { return; }
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// Called once per frame for visible elements before general key processing
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virtual void ProcessInput( void ) { return; }
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//
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virtual const char *GetName( void ) const { return m_pElementName; };
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// Return true if this hud element should be visible in the current hud state
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virtual bool ShouldDraw( void );
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virtual bool IsActive( void ) { return m_bActive; };
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virtual void SetActive( bool bActive );
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virtual GameActionSet_t GetPreferredActionSet() { return GAME_ACTION_SET_NONE; }
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// Hidden bits.
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// HIDEHUD_ flags that note when this element should be hidden in the HUD
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virtual void SetHiddenBits( int iBits );
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bool IsParentedToClientDLLRootPanel() const;
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void SetParentedToClientDLLRootPanel( bool parented );
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// memory handling, uses calloc so members are zero'd out on instantiation
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void *operator new( size_t stAllocateBlock )
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{
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Assert( stAllocateBlock != 0 );
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void *pMem = malloc( stAllocateBlock );
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memset( pMem, 0, stAllocateBlock );
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return pMem;
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}
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void* operator new( size_t stAllocateBlock, int nBlockUse, const char *pFileName, int nLine )
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{
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Assert( stAllocateBlock != 0 );
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void *pMem = MemAlloc_Alloc( stAllocateBlock, pFileName, nLine );
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memset( pMem, 0, stAllocateBlock );
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return pMem;
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}
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void operator delete( void *pMem )
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{
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#if defined( _DEBUG )
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int size = _msize( pMem );
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memset( pMem, 0xcd, size );
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#endif
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free( pMem );
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}
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void operator delete( void *pMem, int nBlockUse, const char *pFileName, int nLine )
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{
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operator delete( pMem );
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}
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void SetNeedsRemove( bool needsremove );
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void RegisterForRenderGroup( const char *pszName );
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void UnregisterForRenderGroup( const char *pszGroupName );
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void HideLowerPriorityHudElementsInGroup( const char *pszGroupName );
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void UnhideLowerPriorityHudElementsInGroup( const char *pszGroupName );
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// For now, CHUdElements declare a single priority value. They will only be hidden
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// by panels with a lower priority and will only lock out panels with a lower priority
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virtual int GetRenderGroupPriority();
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public: // IGameEventListener Interface
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virtual void FireGameEvent( IGameEvent * event ) {}
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public:
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// True if this element is visible, and should think
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bool m_bActive;
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protected:
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int m_iHiddenBits;
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private:
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const char *m_pElementName;
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bool m_bNeedsRemove;
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bool m_bIsParentedToClientDLLRootPanel;
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CUtlVector< int > m_HudRenderGroups;
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};
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#include "utlpriorityqueue.h"
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inline bool RenderGroupLessFunc( CHudElement * const &lhs, CHudElement * const &rhs )
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{
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return ( lhs->GetRenderGroupPriority() < rhs->GetRenderGroupPriority() );
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}
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// hud elements declare themselves to be part of a hud render group, by name
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// we register with each hudelement a list of indeces of groups they are in
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// then they can query by index the state of their render group
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class CHudRenderGroup
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{
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public:
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CHudRenderGroup()
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{
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m_pLockingElements.SetLessFunc( RenderGroupLessFunc );
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bHidden = false;
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}
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bool bHidden;
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CUtlPriorityQueue< CHudElement * > m_pLockingElements;
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};
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#include "tier0/memdbgoff.h"
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#endif // HUDELEMENT_H
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