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351 lines
8.4 KiB
351 lines
8.4 KiB
![]()
4 years ago
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//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose: Client's sheild entity
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//
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// $Workfile: $
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// $Date: $
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// $NoKeywords: $
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//=============================================================================//
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#include "cbase.h"
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#include "C_Shield.h"
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#include "tf_shieldshared.h"
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#include "c_basetfplayer.h"
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enum
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{
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NUM_SUBDIVISIONS = 21,
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};
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#define EMP_WAVE_AMPLITUDE 6.0f
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#define EMP_GROW_WIDTH_DELAY 0.2f
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#define EMP_GROW_TIME 0.6f
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#define EMP_GROW_ATTEN 0.5f
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#define EMP_MIN_WIDTH 5.0f
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//-----------------------------------------------------------------------------
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// Flat version of the shield
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//-----------------------------------------------------------------------------
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class C_ShieldFlat : public C_Shield
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{
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public:
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DECLARE_CLASS( C_ShieldFlat, C_Shield );
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DECLARE_CLIENTCLASS();
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C_ShieldFlat();
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~C_ShieldFlat();
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virtual void GetBounds( Vector& mins, Vector& maxs );
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virtual void AddEntity( );
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virtual void SetDormant( bool bDormant );
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// Return true if the panel is active
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virtual bool IsPanelActive( int x, int y );
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// Gets at the control point data; who knows how it was made?
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virtual void GetShieldData( Vector const** ppVerts, float* pOpacity, float* pBlend );
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virtual const Vector& GetPoint( int x, int y );
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// Draws the model
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virtual int DrawModel( int flags );
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public:
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// networked data
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unsigned char m_ShieldState;
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float m_Width;
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float m_Height;
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float m_DeathFade;
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float m_EMPFade;
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private:
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void ShieldMoved( void );
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private:
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C_ShieldFlat( const C_ShieldFlat& );
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void ComputeEMPFade();
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void ComputeDeathFade();
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void ComputeSize( float& w, float& h );
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void PreRender( );
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Vector m_pPositions[4];
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Vector m_Forward;
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float m_EnterPVSTime;
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QAngle m_LastAngles;
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Vector m_LastPosition;
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Vector m_Pos[4];
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};
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//-----------------------------------------------------------------------------
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// Data table
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//-----------------------------------------------------------------------------
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IMPLEMENT_CLIENTCLASS_DT(C_ShieldFlat, DT_Shield_Flat, CShieldFlat)
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RecvPropInt( RECVINFO(m_ShieldState) ),
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RecvPropFloat( RECVINFO(m_Width) ),
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RecvPropFloat( RECVINFO(m_Height) ),
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END_RECV_TABLE()
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//-----------------------------------------------------------------------------
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// Constructor, destructor
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//-----------------------------------------------------------------------------
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C_ShieldFlat::C_ShieldFlat()
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{
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m_DeathFade = 1.0f;
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m_EMPFade = 1.0f;
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InitShield( 2, 2, 6 );
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}
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C_ShieldFlat::~C_ShieldFlat()
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{
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}
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//-----------------------------------------------------------------------------
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// Leaving/entering the PVS on the server.
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::SetDormant( bool bDormant )
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{
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if (!bDormant)
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{
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if (m_ShieldState & SHIELD_FLAT_EMP)
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{
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m_EMPFade = 0.0f;
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}
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else
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{
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m_EMPFade = 1.0f;
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}
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m_EnterPVSTime = 0.0f;
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if (m_ShieldState & SHIELD_FLAT_INACTIVE)
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{
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m_DeathFade = 0.0f;
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}
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else
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{
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m_EnterPVSTime = gpGlobals->curtime;
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m_DeathFade = 1.0f;
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}
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}
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BaseClass::SetDormant(bDormant);
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}
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//-----------------------------------------------------------------------------
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// Figures the EMP fade factor
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::ComputeEMPFade()
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{
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if (m_ShieldState & SHIELD_FLAT_EMP)
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{
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// Decay fade if we've been EMPed or if we're inactive
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if (m_EMPFade > 0.0f)
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{
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m_EMPFade -= gpGlobals->frametime / SHIELD_EMP_FADE_TIME;
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if (m_EMPFade < 0.0f)
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{
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m_EMPFade = 0.0f;
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}
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else
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{
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Vector dir;
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// Futz with the control points if we've been EMPed
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for (int i = 0; i < 4; ++i)
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{
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float dist = -EMP_WAVE_AMPLITUDE * sin( i * M_PI * 0.5f + gpGlobals->curtime * M_PI / SHIELD_EMP_WOBBLE_TIME );
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VectorMA( m_pPositions[i], dist, m_Forward, m_pPositions[i] );
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}
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}
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}
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}
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else
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{
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// Fade back in, no longer EMPed
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if (m_EMPFade < 1.0f)
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{
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m_EMPFade += gpGlobals->frametime / SHIELD_EMP_FADE_TIME;
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if (m_EMPFade >= 1.0f)
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{
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m_EMPFade = 1.0f;
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}
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}
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}
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}
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//-----------------------------------------------------------------------------
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// Figures the networked fade factor
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::ComputeDeathFade()
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{
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if (m_ShieldState & SHIELD_FLAT_INACTIVE)
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{
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// Fade out when we become inactive
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if (m_DeathFade > 0.0f)
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{
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m_DeathFade -= gpGlobals->frametime / SHIELD_FLAT_SHUTDOWN_TIME;
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if (m_DeathFade < 0.0f)
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{
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m_DeathFade = 0.0f;
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}
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}
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}
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else
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{
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// Active? We should be visible
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m_DeathFade = 1.0f;
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}
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}
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//-----------------------------------------------------------------------------
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// A little pre-render processing
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::ComputeSize( float& w, float& h )
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{
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w = m_Width;
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h = m_Height;
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float dt = gpGlobals->curtime - m_EnterPVSTime;
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if (dt > EMP_GROW_TIME)
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{
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return;
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}
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if (dt < 0)
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dt = 0.0f;
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// Attenuate it up
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w *= 1.0f - pow ( EMP_GROW_ATTEN, 10 * (dt / EMP_GROW_TIME ));
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if (w < EMP_MIN_WIDTH)
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w = EMP_MIN_WIDTH;
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}
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//-----------------------------------------------------------------------------
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// A little pre-render processing
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::PreRender( )
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{
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// Compute the shield positions...
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Vector right, up;
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AngleVectors( GetRenderAngles(), &m_Forward, &right, &up );
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float w, h;
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ComputeSize( w, h );
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VectorMA( GetRenderOrigin(), -w * 0.5, right, m_pPositions[0] );
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VectorMA( m_pPositions[0], -h * 0.5, up, m_pPositions[0] );
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VectorMA( m_pPositions[0], w, right, m_pPositions[1] );
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VectorMA( m_pPositions[0], h, up, m_pPositions[2] );
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VectorMA( m_pPositions[2], w, right, m_pPositions[3] );
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ComputeEMPFade();
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ComputeDeathFade();
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m_FadeValue = m_DeathFade * m_EMPFade;
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}
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void C_ShieldFlat::AddEntity( )
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{
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BaseClass::AddEntity( );
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PreRender();
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}
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//-----------------------------------------------------------------------------
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// Bounds computation
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::GetBounds( Vector& mins, Vector& maxs )
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{
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mins.Init( -1.0/16.0f, -m_Width * 0.5f, -m_Height * 0.5f );
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maxs.Init( 1.0/16.0f, m_Width * 0.5f, m_Height * 0.5f );
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}
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//-----------------------------------------------------------------------------
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// Return true if the panel is active
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//-----------------------------------------------------------------------------
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bool C_ShieldFlat::IsPanelActive( int x, int y )
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{
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return true;
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}
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//-----------------------------------------------------------------------------
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// Gets at the control point data; who knows how it was made?
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::GetShieldData( Vector const** ppVerts, float* pOpacity, float* pBlend )
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{
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for ( int i = 0; i < 4; ++i )
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{
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ppVerts[i] = &m_pPositions[i];
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pOpacity[i] = 32.0f;
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pBlend[i] = 0.0f;
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}
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}
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//-----------------------------------------------------------------------------
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// Shield points
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//-----------------------------------------------------------------------------
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const Vector& C_ShieldFlat::GetPoint( int x, int y )
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{
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if ((m_LastAngles != GetAbsAngles()) || (m_LastPosition != GetAbsOrigin() ))
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{
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ShieldMoved();
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}
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int i = (x >= 1);
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i += (y >= 1) * 2;
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return m_Pos[i];
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}
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//-----------------------------------------------------------------------------
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// Purpose: Computes the shield bounding box
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//-----------------------------------------------------------------------------
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void C_ShieldFlat::ShieldMoved( void )
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{
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Vector forward, right, up;
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AngleVectors( GetAbsAngles(), &forward, &right, &up );
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VectorMA( GetAbsOrigin(), -m_Width * 0.5, right, m_Pos[0] );
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VectorMA( m_Pos[0], -m_Height * 0.5, up, m_Pos[0] );
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VectorMA( m_Pos[0], m_Width, right, m_Pos[1] );
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VectorMA( m_Pos[0], m_Height, up, m_Pos[2] );
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VectorMA( m_Pos[2], m_Width, right, m_Pos[3] );
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m_LastAngles = GetAbsAngles();
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m_LastPosition = GetAbsOrigin();
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}
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//-----------------------------------------------------------------------------
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// Suppress rendering if the player owns it
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//-----------------------------------------------------------------------------
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int C_ShieldFlat::DrawModel( int flags )
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{
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if ( !m_bReadyToDraw )
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return 0;
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// Don't draw it if the owner is the local player
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// if ( m_OwnerEntity == C_BasePlayer::GetLocalPlayer()->index )
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// return 0;
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return BaseClass::DrawModel( flags );
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}
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