1024 lines
29 KiB
C++
1024 lines
29 KiB
C++
//===== Copyright © 1996-2008, Valve Corporation, All rights reserved. ======//
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//
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// ambient_generic: a sound emitter used for one-shot and looping sounds.
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//
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//
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//===========================================================================//
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#include "cbase.h"
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#include "ambientgeneric.h"
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#include "engine/IEngineSound.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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//-----------------------------------------------------------------------------
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// Purpose: Compute a suitable attenuation value given an audible radius
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// Input : radius -
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// playEverywhere - (disable attenuation)
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//-----------------------------------------------------------------------------
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#define REFERENCE_dB 60.0
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#define AMBIENT_GENERIC_UPDATE_RATE 5 // update at 5hz
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#define AMBIENT_GENERIC_THINK_DELAY ( 1.0f / float( AMBIENT_GENERIC_UPDATE_RATE ) )
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#ifdef HL1_DLL
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ConVar hl1_ref_db_distance( "hl1_ref_db_distance", "18.0" );
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#define REFERENCE_dB_DISTANCE hl1_ref_db_distance.GetFloat()
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#else
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#define REFERENCE_dB_DISTANCE 36.0
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#endif//HL1_DLL
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static soundlevel_t ComputeSoundlevel( float radius, bool playEverywhere )
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{
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soundlevel_t soundlevel = SNDLVL_NONE;
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if ( radius > 0 && !playEverywhere )
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{
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// attenuation is set to a distance, compute falloff
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float dB_loss = 20 * log10( radius / REFERENCE_dB_DISTANCE );
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soundlevel = (soundlevel_t)(int)(40 + dB_loss); // sound at 40dB at reference distance
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}
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return soundlevel;
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}
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// ==================== GENERIC AMBIENT SOUND ======================================
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#define CDPVPRESETMAX 27
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// presets for runtime pitch and vol modulation of ambient sounds
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dynpitchvol_t rgdpvpreset[CDPVPRESETMAX] =
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{
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// pitch pstart spinup spindwn volrun volstrt fadein fadeout lfotype lforate modptch modvol cspnup
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{1, 255, 75, 95, 95, 10, 1, 50, 95, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{2, 255, 85, 70, 88, 10, 1, 20, 88, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{3, 255, 100, 50, 75, 10, 1, 10, 75, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{4, 100, 100, 0, 0, 10, 1, 90, 90, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{5, 100, 100, 0, 0, 10, 1, 80, 80, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{6, 100, 100, 0, 0, 10, 1, 50, 70, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{7, 100, 100, 0, 0, 5, 1, 40, 50, 1, 50, 0, 10, 0, 0,0,0,0,0,0,0,0,0,0},
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{8, 100, 100, 0, 0, 5, 1, 40, 50, 1, 150, 0, 10, 0, 0,0,0,0,0,0,0,0,0,0},
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{9, 100, 100, 0, 0, 5, 1, 40, 50, 1, 750, 0, 10, 0, 0,0,0,0,0,0,0,0,0,0},
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{10,128, 100, 50, 75, 10, 1, 30, 40, 2, 8, 20, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{11,128, 100, 50, 75, 10, 1, 30, 40, 2, 25, 20, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{12,128, 100, 50, 75, 10, 1, 30, 40, 2, 70, 20, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{13,50, 50, 0, 0, 10, 1, 20, 50, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{14,70, 70, 0, 0, 10, 1, 20, 50, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{15,90, 90, 0, 0, 10, 1, 20, 50, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{16,120, 120, 0, 0, 10, 1, 20, 50, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{17,180, 180, 0, 0, 10, 1, 20, 50, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{18,255, 255, 0, 0, 10, 1, 20, 50, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{19,200, 75, 90, 90, 10, 1, 50, 90, 2, 100, 20, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{20,255, 75, 97, 90, 10, 1, 50, 90, 1, 40, 50, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{21,100, 100, 0, 0, 10, 1, 30, 50, 3, 15, 20, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{22,160, 160, 0, 0, 10, 1, 50, 50, 3, 500, 25, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{23,255, 75, 88, 0, 10, 1, 40, 0, 0, 0, 0, 0, 5, 0,0,0,0,0,0,0,0,0,0},
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{24,200, 20, 95, 70, 10, 1, 70, 70, 3, 20, 50, 0, 0, 0,0,0,0,0,0,0,0,0,0},
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{25,180, 100, 50, 60, 10, 1, 40, 60, 2, 90, 100, 100, 0, 0,0,0,0,0,0,0,0,0,0},
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{26,60, 60, 0, 0, 10, 1, 40, 70, 3, 80, 20, 50, 0, 0,0,0,0,0,0,0,0,0,0},
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{27,128, 90, 10, 10, 10, 1, 20, 40, 1, 5, 10, 20, 0, 0,0,0,0,0,0,0,0,0,0}
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};
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#ifndef INFESTED_DLL
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LINK_ENTITY_TO_CLASS( ambient_generic, CAmbientGeneric );
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#endif
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BEGIN_DATADESC( CAmbientGeneric )
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DEFINE_KEYFIELD( m_iszSound, FIELD_SOUNDNAME, "message" ),
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DEFINE_KEYFIELD( m_radius, FIELD_FLOAT, "radius" ),
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DEFINE_KEYFIELD( m_sSourceEntName, FIELD_STRING, "SourceEntityName" ),
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// recomputed in Activate()
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// DEFINE_FIELD( m_hSoundSource, EHANDLE ),
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// DEFINE_FIELD( m_nSoundSourceEntIndex, FIELD_INTERGER ),
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DEFINE_FIELD( m_flMaxRadius, FIELD_FLOAT ),
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DEFINE_FIELD( m_fActive, FIELD_BOOLEAN ),
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DEFINE_FIELD( m_fLooping, FIELD_BOOLEAN ),
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DEFINE_FIELD( m_iSoundLevel, FIELD_INTEGER ),
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// HACKHACK - This is not really in the spirit of the save/restore design, but save this
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// out as a binary data block. If the dynpitchvol_t is changed, old saved games will NOT
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// load these correctly, so bump the save/restore version if you change the size of the struct
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// The right way to do this is to split the input parms (read in keyvalue) into members and re-init this
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// struct in Precache(), but it's unlikely that the struct will change, so it's not worth the time right now.
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DEFINE_ARRAY( m_dpv, FIELD_CHARACTER, sizeof(dynpitchvol_t) ),
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// Function Pointers
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DEFINE_FUNCTION( RampThink ),
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// Inputs
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DEFINE_INPUTFUNC(FIELD_VOID, "PlaySound", InputPlaySound ),
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DEFINE_INPUTFUNC(FIELD_VOID, "StopSound", InputStopSound ),
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DEFINE_INPUTFUNC(FIELD_VOID, "ToggleSound", InputToggleSound ),
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DEFINE_INPUTFUNC(FIELD_FLOAT, "Pitch", InputPitch ),
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DEFINE_INPUTFUNC(FIELD_FLOAT, "Volume", InputVolume ),
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DEFINE_INPUTFUNC(FIELD_FLOAT, "FadeIn", InputFadeIn ),
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DEFINE_INPUTFUNC(FIELD_FLOAT, "FadeOut", InputFadeOut ),
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END_DATADESC()
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//-----------------------------------------------------------------------------
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// Spawn
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::Spawn( void )
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{
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m_iSoundLevel = ComputeSoundlevel( m_radius, FBitSet( m_spawnflags, SF_AMBIENT_SOUND_EVERYWHERE )?true:false );
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ComputeMaxAudibleDistance( );
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char *szSoundFile = (char *)STRING( m_iszSound );
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if ( !m_iszSound || strlen( szSoundFile ) < 1 )
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{
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Warning( "Empty %s (%s) at %.2f, %.2f, %.2f\n", GetClassname(), GetDebugName(), GetAbsOrigin().x, GetAbsOrigin().y, GetAbsOrigin().z );
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UTIL_Remove(this);
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return;
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}
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SetSolid( SOLID_NONE );
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SetMoveType( MOVETYPE_NONE );
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// Set up think function for dynamic modification
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// of ambient sound's pitch or volume. Don't
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// start thinking yet.
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SetThink(&CAmbientGeneric::RampThink);
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SetNextThink( TICK_NEVER_THINK );
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m_fActive = false;
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if ( FBitSet ( m_spawnflags, SF_AMBIENT_SOUND_NOT_LOOPING ) )
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{
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m_fLooping = false;
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}
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else
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{
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m_fLooping = true;
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}
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m_hSoundSource = NULL;
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m_nSoundSourceEntIndex = -1;
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Precache( );
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// init all dynamic modulation parms
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InitModulationParms();
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}
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//-----------------------------------------------------------------------------
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// Computes the max audible radius for a given sound level
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//-----------------------------------------------------------------------------
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#define MIN_AUDIBLE_VOLUME 1.01e-3
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void CAmbientGeneric::ComputeMaxAudibleDistance( )
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{
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if (( m_iSoundLevel == SNDLVL_NONE ) || ( m_radius == 0.0f ))
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{
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m_flMaxRadius = -1.0f;
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return;
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}
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// Sadly, there's no direct way of getting at this.
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// We have to do an interative computation.
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float flGain = enginesound->GetDistGainFromSoundLevel( m_iSoundLevel, m_radius );
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if ( flGain <= MIN_AUDIBLE_VOLUME )
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{
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m_flMaxRadius = m_radius;
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return;
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}
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float flMinRadius = m_radius;
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float flMaxRadius = m_radius * 2;
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while ( true )
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{
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// First, find a min + max range surrounding the desired distance gain
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float flGain = enginesound->GetDistGainFromSoundLevel( m_iSoundLevel, flMaxRadius );
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if ( flGain <= MIN_AUDIBLE_VOLUME )
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break;
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// Always audible.
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if ( flMaxRadius > 1e5 )
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{
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m_flMaxRadius = -1.0f;
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return;
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}
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flMinRadius = flMaxRadius;
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flMaxRadius *= 2.0f;
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}
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// Now home in a little bit
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int nInterations = 4;
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while ( --nInterations >= 0 )
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{
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float flTestRadius = (flMinRadius + flMaxRadius) * 0.5f;
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float flGain = enginesound->GetDistGainFromSoundLevel( m_iSoundLevel, flTestRadius );
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if ( flGain <= MIN_AUDIBLE_VOLUME )
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{
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flMaxRadius = flTestRadius;
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}
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else
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{
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flMinRadius = flTestRadius;
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}
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}
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m_flMaxRadius = flMaxRadius;
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}
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//-----------------------------------------------------------------------------
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// Purpose: Input handler for changing pitch.
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// Input : Float new pitch from 0 - 255 (100 = as recorded).
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::InputPitch( inputdata_t &inputdata )
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{
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m_dpv.pitch = clamp( inputdata.value.Float(), 0, 255 );
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SendSound( SND_CHANGE_PITCH );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Input handler for changing volume.
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// Input : Float new volume, from 0 - 10.
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::InputVolume( inputdata_t &inputdata )
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{
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//
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// Multiply the input value by ten since volumes are expected to be from 0 - 100.
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//
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m_dpv.vol = clamp( inputdata.value.Float(), 0, 10 ) * 10;
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m_dpv.volfrac = m_dpv.vol << 8;
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SendSound( SND_CHANGE_VOL );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Input handler for fading in volume over time.
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// Input : Float volume fade in time 0 - 100 seconds
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::InputFadeIn( inputdata_t &inputdata )
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{
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// cancel any fade out that might be happening
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m_dpv.fadeout = 0;
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m_dpv.fadein = inputdata.value.Float();
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if (m_dpv.fadein > 100) m_dpv.fadein = 100;
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if (m_dpv.fadein < 0) m_dpv.fadein = 0;
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if (m_dpv.fadein > 0)
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m_dpv.fadein = ( 100 << 8 ) / ( m_dpv.fadein * AMBIENT_GENERIC_UPDATE_RATE );
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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//-----------------------------------------------------------------------------
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// Purpose: Input handler for fading out volume over time.
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// Input : Float volume fade out time 0 - 100 seconds
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::InputFadeOut( inputdata_t &inputdata )
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{
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// cancel any fade in that might be happening
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m_dpv.fadein = 0;
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m_dpv.fadeout = inputdata.value.Float();
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if (m_dpv.fadeout > 100) m_dpv.fadeout = 100;
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if (m_dpv.fadeout < 0) m_dpv.fadeout = 0;
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if (m_dpv.fadeout > 0)
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m_dpv.fadeout = ( 100 << 8 ) / ( m_dpv.fadeout * AMBIENT_GENERIC_UPDATE_RATE );
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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void CAmbientGeneric::Precache( void )
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{
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char *szSoundFile = (char *)STRING( m_iszSound );
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if ( m_iszSound != NULL_STRING && strlen( szSoundFile ) > 1 )
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{
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if (*szSoundFile != '!')
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{
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PrecacheScriptSound(szSoundFile);
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}
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}
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if ( !FBitSet (m_spawnflags, SF_AMBIENT_SOUND_START_SILENT ) )
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{
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// start the sound ASAP
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if (m_fLooping)
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m_fActive = true;
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}
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}
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//------------------------------------------------------------------------------
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// Purpose:
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//------------------------------------------------------------------------------
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void CAmbientGeneric::Activate( void )
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{
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BaseClass::Activate();
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// Initialize sound source. If no source was given, or source can't be found
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// then this is the source
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if (m_hSoundSource == NULL)
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{
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if (m_sSourceEntName != NULL_STRING)
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{
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m_hSoundSource = gEntList.FindEntityByName( NULL, m_sSourceEntName );
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if ( m_hSoundSource != NULL )
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{
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m_nSoundSourceEntIndex = m_hSoundSource->entindex();
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}
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}
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if (m_hSoundSource == NULL)
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{
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m_hSoundSource = this;
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m_nSoundSourceEntIndex = entindex();
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}
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else
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{
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if ( !FBitSet( m_spawnflags, SF_AMBIENT_SOUND_EVERYWHERE ) )
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{
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AddEFlags( EFL_FORCE_CHECK_TRANSMIT );
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}
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}
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}
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// If active start the sound
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if ( m_fActive )
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{
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int flags = SND_SPAWNING;
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// If we are loading a saved game, we can't write into the init/signon buffer here, so just issue
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// as a regular sound message...
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if ( gpGlobals->eLoadType == MapLoad_Transition ||
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gpGlobals->eLoadType == MapLoad_LoadGame ||
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g_pGameRules->InRoundRestart() )
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{
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flags = SND_NOFLAGS;
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}
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// Tracker 76119: 8/12/07 ywb:
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// Make sure pitch and volume are set up to the correct value (especially after restoring a .sav file)
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flags |= ( SND_CHANGE_PITCH | SND_CHANGE_VOL );
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// Don't bother sending over to client if volume is zero, though
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if ( m_dpv.vol > 0 )
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{
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SendSound( (SoundFlags_t)flags );
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}
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SetNextThink( gpGlobals->curtime + 0.1f );
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}
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}
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//-----------------------------------------------------------------------------
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// Rules about which entities need to transmit along with me
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::SetTransmit( CCheckTransmitInfo *pInfo, bool bAlways )
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{
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// Ambient generics never transmit; this is just a way for us to ensure
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// the sound source gets transmitted; that's why we don't call pInfo->m_pTransmitEdict->Set
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if ( !m_hSoundSource || m_hSoundSource == this || !m_fActive )
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return;
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// Don't bother sending the position of the source if we have to play everywhere
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if ( FBitSet( m_spawnflags, SF_AMBIENT_SOUND_EVERYWHERE ) )
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return;
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Assert( pInfo->m_pClientEnt );
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CBaseEntity *pClient = (CBaseEntity*)(pInfo->m_pClientEnt->GetUnknown());
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if ( !pClient )
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return;
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// Send the sound source if he's close enough
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if ( ( m_flMaxRadius < 0 ) || ( pClient->GetAbsOrigin().DistToSqr( m_hSoundSource->GetAbsOrigin() ) <= m_flMaxRadius * m_flMaxRadius ) )
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{
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m_hSoundSource->SetTransmit( pInfo, false );
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}
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::UpdateOnRemove( void )
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{
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if ( m_fActive )
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{
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// Stop the sound we're generating
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SendSound( SND_STOP );
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}
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BaseClass::UpdateOnRemove();
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}
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//-----------------------------------------------------------------------------
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// Purpose: Think at 5hz if we are dynamically modifying pitch or volume of the
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// playing sound. This function will ramp pitch and/or volume up or
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// down, modify pitch/volume with lfo if active.
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//-----------------------------------------------------------------------------
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void CAmbientGeneric::RampThink( void )
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{
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int pitch = m_dpv.pitch;
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int vol = m_dpv.vol;
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int flags = 0;
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int fChanged = 0; // false if pitch and vol remain unchanged this round
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int prev;
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if (!m_dpv.spinup && !m_dpv.spindown && !m_dpv.fadein && !m_dpv.fadeout && !m_dpv.lfotype)
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return; // no ramps or lfo, stop thinking
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// ==============
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// pitch envelope
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// ==============
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if (m_dpv.spinup || m_dpv.spindown)
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{
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prev = m_dpv.pitchfrac >> 8;
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if (m_dpv.spinup > 0)
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m_dpv.pitchfrac += m_dpv.spinup;
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else if (m_dpv.spindown > 0)
|
|
m_dpv.pitchfrac -= m_dpv.spindown;
|
|
|
|
pitch = m_dpv.pitchfrac >> 8;
|
|
|
|
if (pitch > m_dpv.pitchrun)
|
|
{
|
|
pitch = m_dpv.pitchrun;
|
|
m_dpv.spinup = 0; // done with ramp up
|
|
}
|
|
|
|
if (pitch < m_dpv.pitchstart)
|
|
{
|
|
pitch = m_dpv.pitchstart;
|
|
m_dpv.spindown = 0; // done with ramp down
|
|
|
|
// shut sound off
|
|
SendSound( SND_STOP );
|
|
|
|
// return without setting m_flNextThink
|
|
return;
|
|
}
|
|
|
|
if (pitch > 255) pitch = 255;
|
|
if (pitch < 1) pitch = 1;
|
|
|
|
m_dpv.pitch = pitch;
|
|
|
|
fChanged |= (prev != pitch);
|
|
flags |= SND_CHANGE_PITCH;
|
|
}
|
|
|
|
// ==================
|
|
// amplitude envelope
|
|
// ==================
|
|
if (m_dpv.fadein || m_dpv.fadeout)
|
|
{
|
|
prev = m_dpv.volfrac >> 8;
|
|
|
|
if (m_dpv.fadein > 0)
|
|
m_dpv.volfrac += m_dpv.fadein;
|
|
else if (m_dpv.fadeout > 0)
|
|
m_dpv.volfrac -= m_dpv.fadeout;
|
|
|
|
vol = m_dpv.volfrac >> 8;
|
|
|
|
if (vol > m_dpv.volrun)
|
|
{
|
|
vol = m_dpv.volrun;
|
|
m_dpv.volfrac = vol << 8;
|
|
m_dpv.fadein = 0; // done with ramp up
|
|
}
|
|
|
|
if (vol < m_dpv.volstart)
|
|
{
|
|
vol = m_dpv.volstart;
|
|
m_dpv.vol = vol;
|
|
m_dpv.volfrac = vol << 8;
|
|
m_dpv.fadeout = 0; // done with ramp down
|
|
|
|
// shut sound off
|
|
SendSound( SND_STOP );
|
|
|
|
// return without setting m_flNextThink
|
|
return;
|
|
}
|
|
|
|
if (vol > 100)
|
|
{
|
|
vol = 100;
|
|
m_dpv.volfrac = vol << 8;
|
|
}
|
|
if (vol < 1)
|
|
{
|
|
vol = 1;
|
|
m_dpv.volfrac = vol << 8;
|
|
}
|
|
|
|
m_dpv.vol = vol;
|
|
|
|
fChanged |= (prev != vol);
|
|
flags |= SND_CHANGE_VOL;
|
|
}
|
|
|
|
// ===================
|
|
// pitch/amplitude LFO
|
|
// ===================
|
|
if (m_dpv.lfotype)
|
|
{
|
|
int pos;
|
|
|
|
if (m_dpv.lfofrac > 0x6fffffff)
|
|
m_dpv.lfofrac = 0;
|
|
|
|
// update lfo, lfofrac/255 makes a triangle wave 0-255
|
|
m_dpv.lfofrac += m_dpv.lforate;
|
|
pos = m_dpv.lfofrac >> 8;
|
|
|
|
if (m_dpv.lfofrac < 0)
|
|
{
|
|
m_dpv.lfofrac = 0;
|
|
m_dpv.lforate = abs(m_dpv.lforate);
|
|
pos = 0;
|
|
}
|
|
else if (pos > 255)
|
|
{
|
|
pos = 255;
|
|
m_dpv.lfofrac = (255 << 8);
|
|
m_dpv.lforate = -abs(m_dpv.lforate);
|
|
}
|
|
|
|
switch(m_dpv.lfotype)
|
|
{
|
|
case LFO_SQUARE:
|
|
if (pos < 128)
|
|
m_dpv.lfomult = 255;
|
|
else
|
|
m_dpv.lfomult = 0;
|
|
|
|
break;
|
|
case LFO_RANDOM:
|
|
if (pos == 255)
|
|
m_dpv.lfomult = random->RandomInt(0, 255);
|
|
break;
|
|
case LFO_TRIANGLE:
|
|
default:
|
|
m_dpv.lfomult = pos;
|
|
break;
|
|
}
|
|
|
|
if (m_dpv.lfomodpitch)
|
|
{
|
|
prev = pitch;
|
|
|
|
// pitch 0-255
|
|
pitch += ((m_dpv.lfomult - 128) * m_dpv.lfomodpitch) / 100;
|
|
|
|
if (pitch > 255) pitch = 255;
|
|
if (pitch < 1) pitch = 1;
|
|
|
|
|
|
fChanged |= (prev != pitch);
|
|
flags |= SND_CHANGE_PITCH;
|
|
}
|
|
|
|
if (m_dpv.lfomodvol)
|
|
{
|
|
// vol 0-100
|
|
prev = vol;
|
|
|
|
vol += ((m_dpv.lfomult - 128) * m_dpv.lfomodvol) / 100;
|
|
|
|
if (vol > 100) vol = 100;
|
|
if (vol < 0) vol = 0;
|
|
|
|
fChanged |= (prev != vol);
|
|
flags |= SND_CHANGE_VOL;
|
|
}
|
|
|
|
}
|
|
|
|
// Send update to playing sound only if we actually changed
|
|
// pitch or volume in this routine.
|
|
|
|
if (flags && fChanged)
|
|
{
|
|
if (pitch == PITCH_NORM)
|
|
pitch = PITCH_NORM + 1; // don't send 'no pitch' !
|
|
|
|
CBaseEntity* pSoundSource = m_hSoundSource;
|
|
if (pSoundSource)
|
|
{
|
|
UTIL_EmitAmbientSound(pSoundSource->GetSoundSourceIndex(), pSoundSource->GetAbsOrigin(),
|
|
STRING( m_iszSound ), (vol * 0.01), m_iSoundLevel, flags, pitch);
|
|
}
|
|
}
|
|
|
|
// update ramps at 5hz
|
|
SetNextThink( gpGlobals->curtime + AMBIENT_GENERIC_THINK_DELAY );
|
|
return;
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Init all ramp params in preparation to play a new sound.
|
|
//-----------------------------------------------------------------------------
|
|
void CAmbientGeneric::InitModulationParms(void)
|
|
{
|
|
int pitchinc;
|
|
|
|
m_dpv.volrun = m_iHealth * 10; // 0 - 100
|
|
if (m_dpv.volrun > 100) m_dpv.volrun = 100;
|
|
if (m_dpv.volrun < 0) m_dpv.volrun = 0;
|
|
|
|
// get presets
|
|
if (m_dpv.preset != 0 && m_dpv.preset <= CDPVPRESETMAX)
|
|
{
|
|
// load preset values
|
|
m_dpv = rgdpvpreset[m_dpv.preset - 1];
|
|
|
|
// fixup preset values, just like
|
|
// fixups in KeyValue routine.
|
|
if (m_dpv.spindown > 0)
|
|
m_dpv.spindown = (101 - m_dpv.spindown) * 64;
|
|
if (m_dpv.spinup > 0)
|
|
m_dpv.spinup = (101 - m_dpv.spinup) * 64;
|
|
|
|
m_dpv.volstart *= 10;
|
|
m_dpv.volrun *= 10;
|
|
|
|
if (m_dpv.fadein > 0)
|
|
m_dpv.fadein = (101 - m_dpv.fadein) * 64;
|
|
if (m_dpv.fadeout > 0)
|
|
m_dpv.fadeout = (101 - m_dpv.fadeout) * 64;
|
|
|
|
m_dpv.lforate *= 256;
|
|
|
|
m_dpv.fadeinsav = m_dpv.fadein;
|
|
m_dpv.fadeoutsav = m_dpv.fadeout;
|
|
m_dpv.spinupsav = m_dpv.spinup;
|
|
m_dpv.spindownsav = m_dpv.spindown;
|
|
}
|
|
|
|
m_dpv.fadein = m_dpv.fadeinsav;
|
|
m_dpv.fadeout = 0;
|
|
|
|
if (m_dpv.fadein)
|
|
m_dpv.vol = m_dpv.volstart;
|
|
else
|
|
m_dpv.vol = m_dpv.volrun;
|
|
|
|
m_dpv.spinup = m_dpv.spinupsav;
|
|
m_dpv.spindown = 0;
|
|
|
|
if (m_dpv.spinup)
|
|
m_dpv.pitch = m_dpv.pitchstart;
|
|
else
|
|
m_dpv.pitch = m_dpv.pitchrun;
|
|
|
|
if (m_dpv.pitch == 0)
|
|
m_dpv.pitch = PITCH_NORM;
|
|
|
|
m_dpv.pitchfrac = m_dpv.pitch << 8;
|
|
m_dpv.volfrac = m_dpv.vol << 8;
|
|
|
|
m_dpv.lfofrac = 0;
|
|
m_dpv.lforate = abs(m_dpv.lforate);
|
|
|
|
m_dpv.cspincount = 1;
|
|
|
|
if (m_dpv.cspinup)
|
|
{
|
|
pitchinc = (255 - m_dpv.pitchstart) / m_dpv.cspinup;
|
|
|
|
m_dpv.pitchrun = m_dpv.pitchstart + pitchinc;
|
|
if (m_dpv.pitchrun > 255) m_dpv.pitchrun = 255;
|
|
}
|
|
|
|
if ((m_dpv.spinupsav || m_dpv.spindownsav || (m_dpv.lfotype && m_dpv.lfomodpitch))
|
|
&& (m_dpv.pitch == PITCH_NORM))
|
|
m_dpv.pitch = PITCH_NORM + 1; // must never send 'no pitch' as first pitch
|
|
// if we intend to pitch shift later!
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Input handler that begins playing the sound.
|
|
//-----------------------------------------------------------------------------
|
|
void CAmbientGeneric::InputPlaySound( inputdata_t &inputdata )
|
|
{
|
|
if (!m_fActive)
|
|
{
|
|
//Adrian: Stop our current sound before starting a new one!
|
|
SendSound( SND_STOP );
|
|
|
|
ToggleSound();
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Input handler that stops playing the sound.
|
|
//-----------------------------------------------------------------------------
|
|
void CAmbientGeneric::InputStopSound( inputdata_t &inputdata )
|
|
{
|
|
if (m_fActive)
|
|
{
|
|
ToggleSound();
|
|
}
|
|
}
|
|
|
|
void CAmbientGeneric::SendSound( SoundFlags_t flags)
|
|
{
|
|
char *szSoundFile = (char *)STRING( m_iszSound );
|
|
CBaseEntity* pSoundSource = m_hSoundSource;
|
|
if ( pSoundSource )
|
|
{
|
|
if ( flags == SND_STOP )
|
|
{
|
|
UTIL_EmitAmbientSound(pSoundSource->GetSoundSourceIndex(), pSoundSource->GetAbsOrigin(), szSoundFile,
|
|
0, SNDLVL_NONE, flags, 0);
|
|
}
|
|
else
|
|
{
|
|
UTIL_EmitAmbientSound(pSoundSource->GetSoundSourceIndex(), pSoundSource->GetAbsOrigin(), szSoundFile,
|
|
(m_dpv.vol * 0.01), m_iSoundLevel, flags, m_dpv.pitch);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( ( flags == SND_STOP ) &&
|
|
( m_nSoundSourceEntIndex != -1 ) )
|
|
{
|
|
UTIL_EmitAmbientSound(m_nSoundSourceEntIndex, GetAbsOrigin(), szSoundFile,
|
|
0, SNDLVL_NONE, flags, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Input handler that stops playing the sound.
|
|
//-----------------------------------------------------------------------------
|
|
void CAmbientGeneric::InputToggleSound( inputdata_t &inputdata )
|
|
{
|
|
ToggleSound();
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// Purpose: Turns an ambient sound on or off. If the ambient is a looping sound,
|
|
// mark sound as active (m_fActive) if it's playing, innactive if not.
|
|
// If the sound is not a looping sound, never mark it as active.
|
|
// Input : pActivator -
|
|
// pCaller -
|
|
// useType -
|
|
// value -
|
|
//-----------------------------------------------------------------------------
|
|
void CAmbientGeneric::ToggleSound()
|
|
{
|
|
// m_fActive is true only if a looping sound is playing.
|
|
|
|
if ( m_fActive )
|
|
{// turn sound off
|
|
|
|
if (m_dpv.cspinup)
|
|
{
|
|
// Don't actually shut off. Each toggle causes
|
|
// incremental spinup to max pitch
|
|
|
|
if (m_dpv.cspincount <= m_dpv.cspinup)
|
|
{
|
|
int pitchinc;
|
|
|
|
// start a new spinup
|
|
m_dpv.cspincount++;
|
|
|
|
pitchinc = (255 - m_dpv.pitchstart) / m_dpv.cspinup;
|
|
|
|
m_dpv.spinup = m_dpv.spinupsav;
|
|
m_dpv.spindown = 0;
|
|
|
|
m_dpv.pitchrun = m_dpv.pitchstart + pitchinc * m_dpv.cspincount;
|
|
if (m_dpv.pitchrun > 255) m_dpv.pitchrun = 255;
|
|
|
|
SetNextThink( gpGlobals->curtime + 0.1f );
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
m_fActive = false;
|
|
|
|
// HACKHACK - this makes the code in Precache() work properly after a save/restore
|
|
m_spawnflags |= SF_AMBIENT_SOUND_START_SILENT;
|
|
|
|
if (m_dpv.spindownsav || m_dpv.fadeoutsav)
|
|
{
|
|
// spin it down (or fade it) before shutoff if spindown is set
|
|
m_dpv.spindown = m_dpv.spindownsav;
|
|
m_dpv.spinup = 0;
|
|
|
|
m_dpv.fadeout = m_dpv.fadeoutsav;
|
|
m_dpv.fadein = 0;
|
|
SetNextThink( gpGlobals->curtime + 0.1f );
|
|
}
|
|
else
|
|
{
|
|
SendSound( SND_STOP ); // stop sound
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{// turn sound on
|
|
|
|
// only toggle if this is a looping sound. If not looping, each
|
|
// trigger will cause the sound to play. If the sound is still
|
|
// playing from a previous trigger press, it will be shut off
|
|
// and then restarted.
|
|
|
|
if (m_fLooping)
|
|
m_fActive = true;
|
|
else
|
|
{
|
|
// shut sound off now - may be interrupting a long non-looping sound
|
|
SendSound( SND_STOP ); // stop sound
|
|
}
|
|
|
|
// init all ramp params for startup
|
|
|
|
InitModulationParms();
|
|
|
|
SendSound( SND_NOFLAGS ); // send sound
|
|
|
|
SetNextThink( gpGlobals->curtime + 0.1f );
|
|
|
|
}
|
|
}
|
|
|
|
|
|
// KeyValue - load keyvalue pairs into member data of the
|
|
// ambient generic. NOTE: called BEFORE spawn!
|
|
bool CAmbientGeneric::KeyValue( const char *szKeyName, const char *szValue )
|
|
{
|
|
// NOTE: changing any of the modifiers in this code
|
|
// NOTE: also requires changing InitModulationParms code.
|
|
|
|
// preset
|
|
if (FStrEq(szKeyName, "preset"))
|
|
{
|
|
m_dpv.preset = atoi(szValue);
|
|
}
|
|
// pitchrun
|
|
else if (FStrEq(szKeyName, "pitch"))
|
|
{
|
|
m_dpv.pitchrun = atoi(szValue);
|
|
|
|
if (m_dpv.pitchrun > 255) m_dpv.pitchrun = 255;
|
|
if (m_dpv.pitchrun < 0) m_dpv.pitchrun = 0;
|
|
}
|
|
// pitchstart
|
|
else if (FStrEq(szKeyName, "pitchstart"))
|
|
{
|
|
m_dpv.pitchstart = atoi(szValue);
|
|
|
|
if (m_dpv.pitchstart > 255) m_dpv.pitchstart = 255;
|
|
if (m_dpv.pitchstart < 0) m_dpv.pitchstart = 0;
|
|
}
|
|
// spinup
|
|
else if (FStrEq(szKeyName, "spinup"))
|
|
{
|
|
m_dpv.spinup = atoi(szValue);
|
|
|
|
if (m_dpv.spinup > 100) m_dpv.spinup = 100;
|
|
if (m_dpv.spinup < 0) m_dpv.spinup = 0;
|
|
|
|
if (m_dpv.spinup > 0)
|
|
m_dpv.spinup = (101 - m_dpv.spinup) * 64;
|
|
m_dpv.spinupsav = m_dpv.spinup;
|
|
}
|
|
// spindown
|
|
else if (FStrEq(szKeyName, "spindown"))
|
|
{
|
|
m_dpv.spindown = atoi(szValue);
|
|
|
|
if (m_dpv.spindown > 100) m_dpv.spindown = 100;
|
|
if (m_dpv.spindown < 0) m_dpv.spindown = 0;
|
|
|
|
if (m_dpv.spindown > 0)
|
|
m_dpv.spindown = (101 - m_dpv.spindown) * 64;
|
|
m_dpv.spindownsav = m_dpv.spindown;
|
|
}
|
|
// volstart
|
|
else if (FStrEq(szKeyName, "volstart"))
|
|
{
|
|
m_dpv.volstart = atoi(szValue);
|
|
|
|
if (m_dpv.volstart > 10) m_dpv.volstart = 10;
|
|
if (m_dpv.volstart < 0) m_dpv.volstart = 0;
|
|
|
|
m_dpv.volstart *= 10; // 0 - 100
|
|
}
|
|
// legacy fadein
|
|
else if (FStrEq(szKeyName, "fadein"))
|
|
{
|
|
m_dpv.fadein = atoi(szValue);
|
|
|
|
if (m_dpv.fadein > 100) m_dpv.fadein = 100;
|
|
if (m_dpv.fadein < 0) m_dpv.fadein = 0;
|
|
|
|
if (m_dpv.fadein > 0)
|
|
m_dpv.fadein = (101 - m_dpv.fadein) * 64;
|
|
m_dpv.fadeinsav = m_dpv.fadein;
|
|
}
|
|
// legacy fadeout
|
|
else if (FStrEq(szKeyName, "fadeout"))
|
|
{
|
|
m_dpv.fadeout = atoi(szValue);
|
|
|
|
if (m_dpv.fadeout > 100) m_dpv.fadeout = 100;
|
|
if (m_dpv.fadeout < 0) m_dpv.fadeout = 0;
|
|
|
|
if (m_dpv.fadeout > 0)
|
|
m_dpv.fadeout = (101 - m_dpv.fadeout) * 64;
|
|
m_dpv.fadeoutsav = m_dpv.fadeout;
|
|
}
|
|
// fadeinsecs
|
|
else if (FStrEq(szKeyName, "fadeinsecs"))
|
|
{
|
|
m_dpv.fadein = atoi(szValue);
|
|
|
|
if (m_dpv.fadein > 100) m_dpv.fadein = 100;
|
|
if (m_dpv.fadein < 0) m_dpv.fadein = 0;
|
|
|
|
if (m_dpv.fadein > 0)
|
|
m_dpv.fadein = ( 100 << 8 ) / ( m_dpv.fadein * AMBIENT_GENERIC_UPDATE_RATE );
|
|
m_dpv.fadeinsav = m_dpv.fadein;
|
|
}
|
|
// fadeoutsecs
|
|
else if (FStrEq(szKeyName, "fadeoutsecs"))
|
|
{
|
|
m_dpv.fadeout = atoi(szValue);
|
|
|
|
if (m_dpv.fadeout > 100) m_dpv.fadeout = 100;
|
|
if (m_dpv.fadeout < 0) m_dpv.fadeout = 0;
|
|
|
|
if (m_dpv.fadeout > 0)
|
|
m_dpv.fadeout = ( 100 << 8 ) / ( m_dpv.fadeout * AMBIENT_GENERIC_UPDATE_RATE );
|
|
m_dpv.fadeoutsav = m_dpv.fadeout;
|
|
}
|
|
// lfotype
|
|
else if (FStrEq(szKeyName, "lfotype"))
|
|
{
|
|
m_dpv.lfotype = atoi(szValue);
|
|
if (m_dpv.lfotype > 4) m_dpv.lfotype = LFO_TRIANGLE;
|
|
}
|
|
// lforate
|
|
else if (FStrEq(szKeyName, "lforate"))
|
|
{
|
|
m_dpv.lforate = atoi(szValue);
|
|
|
|
if (m_dpv.lforate > 1000) m_dpv.lforate = 1000;
|
|
if (m_dpv.lforate < 0) m_dpv.lforate = 0;
|
|
|
|
m_dpv.lforate *= 256;
|
|
}
|
|
// lfomodpitch
|
|
else if (FStrEq(szKeyName, "lfomodpitch"))
|
|
{
|
|
m_dpv.lfomodpitch = atoi(szValue);
|
|
if (m_dpv.lfomodpitch > 100) m_dpv.lfomodpitch = 100;
|
|
if (m_dpv.lfomodpitch < 0) m_dpv.lfomodpitch = 0;
|
|
}
|
|
|
|
// lfomodvol
|
|
else if (FStrEq(szKeyName, "lfomodvol"))
|
|
{
|
|
m_dpv.lfomodvol = atoi(szValue);
|
|
if (m_dpv.lfomodvol > 100) m_dpv.lfomodvol = 100;
|
|
if (m_dpv.lfomodvol < 0) m_dpv.lfomodvol = 0;
|
|
}
|
|
// cspinup
|
|
else if (FStrEq(szKeyName, "cspinup"))
|
|
{
|
|
m_dpv.cspinup = atoi(szValue);
|
|
if (m_dpv.cspinup > 100) m_dpv.cspinup = 100;
|
|
if (m_dpv.cspinup < 0) m_dpv.cspinup = 0;
|
|
}
|
|
else
|
|
return BaseClass::KeyValue( szKeyName, szValue );
|
|
|
|
return true;
|
|
}
|