302 lines
6.8 KiB
C++
302 lines
6.8 KiB
C++
//========= 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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//=============================================================================//
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#ifndef C_FIRE_SMOKE_H
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#define C_FIRE_SMOKE_H
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#include "particles_simple.h"
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#include "tempent.h"
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#include "glow_overlay.h"
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#include "view.h"
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#include "particle_litsmokeemitter.h"
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class CFireOverlay;
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class C_FireSprite : public C_Sprite
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{
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DECLARE_CLASS( C_FireSprite, C_Sprite );
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private:
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virtual int DrawModel( int flags )
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{
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if ( m_bFadeFromAbove )
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{
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// The sprites become less visible the more you look down or up at them
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Vector vToPos = GetLocalOrigin() - CurrentViewOrigin();
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VectorNormalize( vToPos );
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float fUpAmount = vToPos.z;
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int iAlpha = 255;
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if ( fUpAmount < -0.75f )
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iAlpha = 0;
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else if ( fUpAmount < -0.65f )
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iAlpha = 255 - (int)( ( fUpAmount + 0.65f ) * 10.0f * -255.0f );
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else if ( fUpAmount > 0.85f )
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iAlpha = 0;
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else if ( fUpAmount > 0.75f )
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iAlpha = 255 - (int)( ( fUpAmount - 0.75f ) * 10.0f * 255.0f );
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SetColor( iAlpha, iAlpha, iAlpha );
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}
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return BaseClass::DrawModel( flags );
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}
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public:
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Vector m_vecMoveDir;
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bool m_bFadeFromAbove;
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};
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class C_FireFromAboveSprite : public C_Sprite
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{
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DECLARE_CLASS( C_FireFromAboveSprite, C_Sprite );
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virtual int DrawModel( int flags )
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{
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// The sprites become more visible the more you look down or up at them
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Vector vToPos = GetLocalOrigin() - CurrentViewOrigin();
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VectorNormalize( vToPos );
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float fUpAmount = vToPos.z;
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int iAlpha = 0;
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if ( fUpAmount < -0.85f )
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iAlpha = 255;
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else if ( fUpAmount < -0.65f )
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iAlpha = (int)( ( fUpAmount + 0.65f ) * 5.0f * -255.0f );
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else if ( fUpAmount > 0.75f )
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iAlpha = 255;
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else if ( fUpAmount > 0.55f )
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iAlpha = (int)( ( fUpAmount - 0.55f ) * 5.0f * 255.0f );
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SetColor( iAlpha, iAlpha, iAlpha );
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return BaseClass::DrawModel( flags );
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}
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};
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#ifdef _XBOX
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// XBox reduces the flame count
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#define NUM_CHILD_FLAMES 1
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#else
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#define NUM_CHILD_FLAMES 4
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#endif
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#define SMOKE_RISE_RATE 92.0f
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#define SMOKE_LIFETIME 2.0f
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#define EMBER_LIFETIME 2.0f
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#define FLAME_CHILD_SPREAD 64.0f
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#define FLAME_SOURCE_HEIGHT 128.0f
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#define FLAME_FROM_ABOVE_SOURCE_HEIGHT 32.0f
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//==================================================
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// C_FireSmoke
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//==================================================
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//NOTENOTE: Mirrored in dlls/fire_smoke.h
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#define bitsFIRESMOKE_NONE 0x00000000
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#define bitsFIRESMOKE_ACTIVE 0x00000001
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#define bitsFIRESMOKE_SMOKE 0x00000002
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#define bitsFIRESMOKE_SMOKE_COLLISION 0x00000004
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#define bitsFIRESMOKE_GLOW 0x00000008
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#define bitsFIRESMOKE_VISIBLE_FROM_ABOVE 0x00000010
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#define OVERLAY_MAX_VISIBLE_RANGE 512.0f
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class C_FireSmoke : public C_BaseEntity
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{
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public:
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DECLARE_CLIENTCLASS();
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DECLARE_CLASS( C_FireSmoke, C_BaseEntity );
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C_FireSmoke();
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~C_FireSmoke();
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void Start( void );
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void Simulate( void );
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void StartClientOnly( void );
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void RemoveClientOnly( void );
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protected:
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void Update( void );
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void UpdateAnimation( void );
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void UpdateScale( void );
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void UpdateFlames( void );
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void AddFlames( void );
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void SpawnSmoke( void );
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void FindClipPlane( void );
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//C_BaseEntity
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public:
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virtual void OnDataChanged( DataUpdateType_t updateType );
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virtual bool ShouldDraw();
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float GetScale( void ) const { return m_flScaleRegister; }
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//From the server
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public:
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float m_flStartScale;
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float m_flScale;
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float m_flScaleTime;
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int m_nFlags;
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int m_nFlameModelIndex;
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int m_nFlameFromAboveModelIndex;
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//Client-side only
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public:
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float m_flScaleRegister;
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float m_flScaleStart;
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float m_flScaleEnd;
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float m_flScaleTimeStart;
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float m_flScaleTimeEnd;
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float m_flChildFlameSpread;
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VPlane m_planeClip;
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float m_flClipPerc;
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bool m_bClipTested;
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bool m_bFadingOut;
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protected:
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void UpdateEffects( void );
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//CSmartPtr<CEmberEffect> m_pEmberEmitter;
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CSmartPtr<CLitSmokeEmitter> m_pSmokeEmitter;
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C_FireSprite m_entFlames[NUM_CHILD_FLAMES];
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C_FireFromAboveSprite m_entFlamesFromAbove[NUM_CHILD_FLAMES];
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float m_entFlameScales[NUM_CHILD_FLAMES];
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TimedEvent m_tParticleSpawn;
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CFireOverlay *m_pFireOverlay;
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// New Particle Fire Effect
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CNewParticleEffect *m_hEffect;
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private:
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C_FireSmoke( const C_FireSmoke & );
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};
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//Fire overlay
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class CFireOverlay : public CGlowOverlay
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{
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public:
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//Constructor
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CFireOverlay( C_FireSmoke *owner )
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{
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m_pOwner = owner;
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m_flScale = 0.0f;
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m_nGUID = random->RandomInt( -999999, 999999 );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Generate a flicker value
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// Output : scalar value
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//-----------------------------------------------------------------------------
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float GetFlickerScale( void )
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{
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float result = 0.0f;
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float time = Helper_GetTime() + m_nGUID;
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result = sin( time * 1000.0f );
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result += 0.5f * sin( time * 2000.0f );
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result -= 0.5f * cos( time * 8000.0f );
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return result;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Update the overlay
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//-----------------------------------------------------------------------------
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virtual bool Update( void )
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{
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if ( m_pOwner == NULL )
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return false;
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float scale = m_pOwner->GetScale();
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float dscale = scale - m_flScale;
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m_vPos[2] += dscale * FLAME_SOURCE_HEIGHT;
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m_flScale = scale;
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scale *= 0.75f;
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float flickerScale = GetFlickerScale();
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float newScale = scale + ( scale * flickerScale * 0.1f );
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m_Sprites[0].m_flHorzSize = ( newScale * 0.2f ) + ( m_Sprites[0].m_flHorzSize * 0.8f );
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m_Sprites[0].m_flVertSize = m_Sprites[0].m_flHorzSize * 1.5f;
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float cameraDistance = ( CurrentViewOrigin() - (m_pOwner->GetAbsOrigin())).Length();
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C_BasePlayer *local = C_BasePlayer::GetLocalPlayer();
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if ( local )
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{
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cameraDistance *= local->GetFOVDistanceAdjustFactor();
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}
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if ( cameraDistance > OVERLAY_MAX_VISIBLE_RANGE )
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cameraDistance = OVERLAY_MAX_VISIBLE_RANGE;
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float alpha = 1.0f - ( cameraDistance / OVERLAY_MAX_VISIBLE_RANGE );
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Vector newColor = m_vBaseColors[0] + ( m_vBaseColors[0] * flickerScale * 0.5f );
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m_Sprites[0].m_vColor = ( newColor * 0.1f ) + ( m_Sprites[0].m_vColor * 0.9f ) * alpha;
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return true;
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}
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public:
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C_FireSmoke *m_pOwner;
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Vector m_vBaseColors[MAX_SUN_LAYERS];
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float m_flScale;
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int m_nGUID;
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};
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//
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// Entity flame, client-side implementation
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//
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#define NUM_FLAMELETS 5
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class C_EntityFlame : public C_BaseEntity
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{
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public:
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DECLARE_CLIENTCLASS();
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DECLARE_CLASS( C_EntityFlame, C_BaseEntity );
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C_EntityFlame( void );
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~C_EntityFlame( void );
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virtual void Simulate( void );
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virtual void UpdateOnRemove( void );
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virtual void OnDataChanged( DataUpdateType_t updateType );
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virtual void ClientThink( void );
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CNewParticleEffect *m_hEffect;
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EHANDLE m_hEntAttached; // The entity that we are burning (attached to).
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EHANDLE m_hOldAttached;
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protected:
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void CreateEffect( void );
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void StopEffect( void );
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};
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#endif //C_FIRE_SMOKE_H
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