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544 lines
12 KiB
544 lines
12 KiB
//========= Copyright © 1996-2005, 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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#include "cbase.h"
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#include "baseanimating.h"
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#include "Sprite.h"
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#include "SpriteTrail.h"
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#include <ctype.h>
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#include "animation.h"
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#include "eventlist.h"
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#include "npcevent.h"
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// memdbgon must be the last include file in a .cpp file!!!
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#include "tier0/memdbgon.h"
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enum EffectType
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{
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EFFECT_TYPE_TRAIL = 1,
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EFFECT_TYPE_SPRITE
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};
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bool g_bUnget = false;
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unsigned char *buffer;
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char name[ 256 ];
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const char *currenttoken;
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int tokencount;
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char token[ 1204 ];
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class CEffectScriptElement
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{
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public:
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CEffectScriptElement();
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char m_szEffectName[128];
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CHandle<CSpriteTrail> m_pTrail;
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CHandle<CSprite> m_pSprite;
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int m_iType;
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int m_iRenderType;
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int m_iR;
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int m_iG;
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int m_iB;
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int m_iA;
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char m_szAttachment[128];
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char m_szMaterial[128];
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float m_flScale;
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float m_flFadeTime;
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float m_flTextureRes;
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bool m_bStopFollowOnKill;
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bool IsActive( void ) { return m_bActive; }
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void Activate( void ) { m_bActive = true; }
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void Deactivate( void ) { m_bActive = false; }
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private:
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bool m_bActive;
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};
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CEffectScriptElement::CEffectScriptElement()
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{
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m_pTrail = NULL;
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m_pSprite = NULL;
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m_iType = 0;
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Deactivate();
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m_iRenderType = kRenderTransAdd;
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m_iR = 255;
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m_iG = 0;
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m_iB = 0;
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m_iA = 255;
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m_flScale = 1.0f;
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m_flFadeTime = 1.0f;
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m_flTextureRes = -1.0f;
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m_bStopFollowOnKill = false;
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}
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//-----------------------------------------------------------------------------
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// An entity which emits other entities at points
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//-----------------------------------------------------------------------------
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class CEnvEffectsScript : public CBaseAnimating
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{
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public:
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DECLARE_CLASS( CEnvEffectsScript, CBaseAnimating );
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DECLARE_DATADESC();
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virtual void Precache();
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virtual void Spawn();
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virtual int UpdateTransmitState();
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void InputSetSequence( inputdata_t &inputdata );
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void ParseScriptFile( void );
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void LoadFromBuffer( const char *scriptfile, const char *buffer );
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virtual void Think( void );
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void ParseNewEffect( void );
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const char *GetScriptFile( void )
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{
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return STRING( m_iszScriptName );
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}
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void HandleAnimEvent ( animevent_t *pEvent );
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void TrailEffectEvent( CEffectScriptElement *pEffect );
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void SpriteEffectEvent( CEffectScriptElement *pEffect );
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CEffectScriptElement *GetScriptElementByName( const char *pName );
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private:
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string_t m_iszScriptName;
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CUtlVector< CEffectScriptElement > m_ScriptElements;
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//-----------------------------------------------------------------------------
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// Purpose:
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// Output : Returns true on success, false on failure.
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//-----------------------------------------------------------------------------
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bool IsRootCommand( void )
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{
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if ( !Q_stricmp( token, "effect" ) )
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return true;
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return false;
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}
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};
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inline bool ParseToken( void )
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{
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if ( g_bUnget )
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{
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g_bUnget = false;
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return true;
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}
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currenttoken = engine->ParseFile( currenttoken, token, sizeof( token ) );
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tokencount++;
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return currenttoken != NULL ? true : false;
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}
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inline void Unget()
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{
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g_bUnget = true;
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}
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inline bool TokenWaiting( void )
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{
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const char *p = currenttoken;
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while ( *p && *p!='\n')
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{
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// Special handler for // comment blocks
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if ( *p == '/' && *(p+1) == '/' )
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return false;
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if ( !V_isspace( *p ) || V_isalnum( *p ) )
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return true;
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p++;
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}
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return false;
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}
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//-----------------------------------------------------------------------------
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// Save/load
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//-----------------------------------------------------------------------------
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BEGIN_DATADESC( CEnvEffectsScript )
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// Inputs
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DEFINE_INPUTFUNC( FIELD_STRING, "SetSequence", InputSetSequence ),
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DEFINE_KEYFIELD( m_iszScriptName, FIELD_STRING, "scriptfile" ),
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// DEFINE_FIELD( m_ScriptElements, CUtlVector < CEffectScriptElement > ),
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DEFINE_FUNCTION( Think ),
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END_DATADESC()
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LINK_ENTITY_TO_CLASS( env_effectscript, CEnvEffectsScript );
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//-----------------------------------------------------------------------------
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// Should we transmit it to the client?
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//-----------------------------------------------------------------------------
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int CEnvEffectsScript::UpdateTransmitState()
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{
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return SetTransmitState( FL_EDICT_ALWAYS );
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}
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//-----------------------------------------------------------------------------
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// Precache
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//-----------------------------------------------------------------------------
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void CEnvEffectsScript::Precache()
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{
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BaseClass::Precache();
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PrecacheModel( STRING( GetModelName() ) );
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if ( m_iszScriptName != NULL_STRING )
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ParseScriptFile();
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else
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Warning( "CEnvEffectsScript with no script!\n" );
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}
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//-----------------------------------------------------------------------------
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// Spawn
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//-----------------------------------------------------------------------------
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void CEnvEffectsScript::Spawn()
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{
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Precache();
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BaseClass::Spawn();
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// We need a model for its animation sequences even though we don't render it
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SetModel( STRING( GetModelName() ) );
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AddEffects( EF_NODRAW );
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SetThink( &CEnvEffectsScript::Think );
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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void CEnvEffectsScript::Think( void )
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{
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StudioFrameAdvance();
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DispatchAnimEvents( this );
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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void CEnvEffectsScript::TrailEffectEvent( CEffectScriptElement *pEffect )
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{
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if ( pEffect->IsActive() == false )
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{
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//Only one type of this effect active at a time.
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if ( pEffect->m_pTrail == NULL )
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{
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pEffect->m_pTrail = CSpriteTrail::SpriteTrailCreate( pEffect->m_szMaterial, GetAbsOrigin(), true );
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pEffect->m_pTrail->FollowEntity( this );
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pEffect->m_pTrail->SetTransparency( pEffect->m_iRenderType, pEffect->m_iR, pEffect->m_iG, pEffect->m_iB, pEffect->m_iA, kRenderFxNone );
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pEffect->m_pTrail->SetStartWidth( pEffect->m_flScale );
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if ( pEffect->m_flTextureRes < 0.0f )
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{
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pEffect->m_pTrail->SetTextureResolution( 1.0f / ( 16.0f * pEffect->m_flScale ) );
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}
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else
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{
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pEffect->m_pTrail->SetTextureResolution( pEffect->m_flTextureRes );
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}
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pEffect->m_pTrail->SetLifeTime( pEffect->m_flFadeTime );
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pEffect->m_pTrail->TurnOn();
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pEffect->m_pTrail->SetAttachment( this, LookupAttachment( pEffect->m_szAttachment ) );
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pEffect->Activate();
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}
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}
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}
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void CEnvEffectsScript::SpriteEffectEvent( CEffectScriptElement *pEffect )
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{
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if ( pEffect->IsActive() == false )
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{
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//Only one type of this effect active at a time.
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if ( pEffect->m_pSprite == NULL )
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{
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pEffect->m_pSprite = CSprite::SpriteCreate( pEffect->m_szMaterial, GetAbsOrigin(), true );
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pEffect->m_pSprite->FollowEntity( this );
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pEffect->m_pSprite->SetTransparency( pEffect->m_iRenderType, pEffect->m_iR, pEffect->m_iG, pEffect->m_iB, pEffect->m_iA, kRenderFxNone );
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pEffect->m_pSprite->SetScale( pEffect->m_flScale );
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pEffect->m_pSprite->TurnOn();
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pEffect->m_pSprite->SetAttachment( this, LookupAttachment( pEffect->m_szAttachment ) );
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pEffect->Activate();
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}
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}
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}
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void CEnvEffectsScript::HandleAnimEvent ( animevent_t *pEvent )
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{
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int nEvent = pEvent->Event();
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if ( nEvent == AE_START_SCRIPTED_EFFECT )
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{
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CEffectScriptElement *pCurrent = GetScriptElementByName( pEvent->options );
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if ( pCurrent )
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{
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if ( pCurrent->m_iType == EFFECT_TYPE_TRAIL )
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TrailEffectEvent( pCurrent );
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else if ( pCurrent->m_iType == EFFECT_TYPE_SPRITE )
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SpriteEffectEvent( pCurrent );
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}
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return;
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}
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if ( nEvent == AE_STOP_SCRIPTED_EFFECT )
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{
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CEffectScriptElement *pCurrent = GetScriptElementByName( pEvent->options );
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if ( pCurrent && pCurrent->IsActive() )
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{
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pCurrent->Deactivate();
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if ( pCurrent->m_iType == EFFECT_TYPE_TRAIL )
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{
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if ( pCurrent->m_bStopFollowOnKill == true )
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{
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Vector vOrigin;
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GetAttachment( pCurrent->m_pTrail->m_nAttachment, vOrigin );
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pCurrent->m_pTrail->StopFollowingEntity();
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pCurrent->m_pTrail->m_hAttachedToEntity = NULL;
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pCurrent->m_pTrail->m_nAttachment = 0;
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pCurrent->m_pTrail->SetAbsOrigin( vOrigin);
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}
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pCurrent->m_pTrail->FadeAndDie( pCurrent->m_flFadeTime );
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pCurrent->m_pTrail = NULL;
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}
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else if ( pCurrent->m_iType == EFFECT_TYPE_SPRITE )
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{
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if ( pCurrent->m_bStopFollowOnKill == true )
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{
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Vector vOrigin;
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GetAttachment( pCurrent->m_pSprite->m_nAttachment, vOrigin );
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pCurrent->m_pSprite->StopFollowingEntity();
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pCurrent->m_pSprite->m_hAttachedToEntity = NULL;
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pCurrent->m_pSprite->m_nAttachment = 0;
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pCurrent->m_pSprite->SetAbsOrigin( vOrigin);
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}
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pCurrent->m_pSprite->FadeAndDie( pCurrent->m_flFadeTime );
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pCurrent->m_pSprite = NULL;
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}
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}
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return;
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}
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BaseClass::HandleAnimEvent( pEvent );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Input that sets the sequence of the entity
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//-----------------------------------------------------------------------------
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void CEnvEffectsScript::InputSetSequence( inputdata_t &inputdata )
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{
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if ( inputdata.value.StringID() != NULL_STRING )
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{
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int nSequence = LookupSequence( STRING( inputdata.value.StringID() ) );
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if ( nSequence != ACT_INVALID )
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{
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SetSequence( nSequence );
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ResetSequenceInfo();
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SetCycle( 0.0f );
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m_flPlaybackRate = 1.0f;
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}
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}
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}
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void CEnvEffectsScript::ParseScriptFile( void )
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{
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int length = 0;
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m_ScriptElements.RemoveAll();
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const char *pScriptName = GetScriptFile();
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//Reset everything.
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g_bUnget = false;
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currenttoken = NULL;
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tokencount = 0;
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memset( token, 0, 1204 );
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memset( name, 0, 256 );
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unsigned char *buffer = (unsigned char *)UTIL_LoadFileForMe( pScriptName, &length );
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if ( length <= 0 || !buffer )
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{
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DevMsg( 1, "CEnvEffectsScript: failed to load %s\n", pScriptName );
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return;
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}
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currenttoken = (const char *)buffer;
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LoadFromBuffer( pScriptName, (const char *)buffer );
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UTIL_FreeFile( buffer );
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}
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void CEnvEffectsScript::LoadFromBuffer( const char *scriptfile, const char *buffer )
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{
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while ( 1 )
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{
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ParseToken();
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if ( !token[0] )
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{
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break;
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}
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if ( !Q_stricmp( token, "effect" ) )
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{
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ParseNewEffect();
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}
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else
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{
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Warning( "CEnvEffectsScript: Unknown entry type '%s'\n", token );
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break;
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}
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}
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}
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void CEnvEffectsScript::ParseNewEffect( void )
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{
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//Add a new effect to the list.
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CEffectScriptElement NewElement;
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// Effect Group Name
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ParseToken();
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Q_strncpy( NewElement.m_szEffectName, token, sizeof( NewElement.m_szEffectName ) );
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while ( 1 )
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{
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ParseToken();
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// Oops, part of next definition
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if( IsRootCommand() )
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{
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Unget();
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break;
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}
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if ( !Q_stricmp( token, "{" ) )
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{
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while ( 1 )
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{
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ParseToken();
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if ( !Q_stricmp( token, "}" ) )
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break;
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if ( !Q_stricmp( token, "type" ) )
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{
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ParseToken();
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if ( !Q_stricmp( token, "trail" ) )
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NewElement.m_iType = EFFECT_TYPE_TRAIL;
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else if ( !Q_stricmp( token, "sprite" ) )
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NewElement.m_iType = EFFECT_TYPE_SPRITE;
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continue;
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}
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if ( !Q_stricmp( token, "material" ) )
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{
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ParseToken();
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Q_strncpy( NewElement.m_szMaterial, token, sizeof( NewElement.m_szMaterial ) );
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PrecacheModel( NewElement.m_szMaterial );
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continue;
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}
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if ( !Q_stricmp( token, "attachment" ) )
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{
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ParseToken();
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Q_strncpy( NewElement.m_szAttachment, token, sizeof( NewElement.m_szAttachment ) );
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continue;
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}
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if ( !Q_stricmp( token, "color" ) )
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{
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ParseToken();
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sscanf( token, "%i %i %i %i", &NewElement.m_iR, &NewElement.m_iG, &NewElement.m_iB, &NewElement.m_iA );
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continue;
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}
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if ( !Q_stricmp( token, "scale" ) )
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{
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ParseToken();
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NewElement.m_flScale = atof( token );
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continue;
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}
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if ( !Q_stricmp( token, "texturescale" ) )
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{
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ParseToken();
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float flTextureScale = atof( token );
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NewElement.m_flTextureRes = (flTextureScale > 0.0f) ? 1.0f / flTextureScale : 0.0f;
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continue;
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}
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if ( !Q_stricmp( token, "fadetime" ) )
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{
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ParseToken();
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NewElement.m_flFadeTime = atof( token );
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continue;
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}
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if ( !Q_stricmp( token, "stopfollowonkill" ) )
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{
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ParseToken();
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NewElement.m_bStopFollowOnKill = !!atoi( token );
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continue;
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}
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}
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break;
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}
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}
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m_ScriptElements.AddToTail( NewElement );
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}
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CEffectScriptElement *CEnvEffectsScript::GetScriptElementByName( const char *pName )
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{
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for ( int i = 0; i < m_ScriptElements.Count(); i++ )
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{
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CEffectScriptElement *pCurrent = &m_ScriptElements.Element( i );
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if ( pCurrent && !Q_stricmp( pCurrent->m_szEffectName, pName ) )
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{
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return pCurrent;
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}
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}
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return NULL;
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}
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