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277 lines
6.9 KiB
C++
277 lines
6.9 KiB
C++
/***
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*
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* Copyright (c) 1999, Valve LLC. All rights reserved.
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*
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* This product contains software technology licensed from Id
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* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
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* All Rights Reserved.
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*
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* Use, distribution, and modification of this source code and/or resulting
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* object code is restricted to non-commercial enhancements to products from
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* Valve LLC. All other use, distribution, or modification is prohibited
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* without written permission from Valve LLC.
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*
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****/
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/*
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===== explode.cpp ========================================================
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Explosion-related code
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*/
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#include "extdll.h"
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#include "util.h"
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#include "cbase.h"
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#include "decals.h"
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#include "explode.h"
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// Spark Shower
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class CShower : public CBaseEntity
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{
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void Spawn( void );
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void Think( void );
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void Touch( CBaseEntity *pOther );
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int ObjectCaps( void ) { return FCAP_DONT_SAVE; }
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};
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LINK_ENTITY_TO_CLASS( spark_shower, CShower );
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void CShower::Spawn( void )
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{
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pev->velocity = RANDOM_FLOAT( 200, 300 ) * pev->angles;
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pev->velocity.x += RANDOM_FLOAT(-100.f,100.f);
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pev->velocity.y += RANDOM_FLOAT(-100.f,100.f);
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if ( pev->velocity.z >= 0 )
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pev->velocity.z += 200;
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else
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pev->velocity.z -= 200;
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pev->movetype = MOVETYPE_BOUNCE;
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pev->gravity = 0.5;
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pev->nextthink = gpGlobals->time + 0.1;
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pev->solid = SOLID_NOT;
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SET_MODEL( edict(), "models/grenade.mdl"); // Need a model, just use the grenade, we don't draw it anyway
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UTIL_SetSize(pev, g_vecZero, g_vecZero );
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pev->effects |= EF_NODRAW;
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pev->speed = RANDOM_FLOAT( 0.5, 1.5 );
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pev->angles = g_vecZero;
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}
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void CShower::Think( void )
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{
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UTIL_Sparks( pev->origin );
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pev->speed -= 0.1;
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if ( pev->speed > 0 )
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pev->nextthink = gpGlobals->time + 0.1;
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else
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UTIL_Remove( this );
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pev->flags &= ~FL_ONGROUND;
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}
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void CShower::Touch( CBaseEntity *pOther )
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{
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if ( pev->flags & FL_ONGROUND )
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pev->velocity = pev->velocity * 0.1;
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else
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pev->velocity = pev->velocity * 0.6;
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if ( (pev->velocity.x*pev->velocity.x+pev->velocity.y*pev->velocity.y) < 10.0 )
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pev->speed = 0;
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}
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class CEnvExplosion : public CBaseMonster
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{
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public:
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void Spawn( );
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void EXPORT Smoke ( void );
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void KeyValue( KeyValueData *pkvd );
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void Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value );
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virtual int Save( CSave &save );
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virtual int Restore( CRestore &restore );
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static TYPEDESCRIPTION m_SaveData[];
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int m_iMagnitude;// how large is the fireball? how much damage?
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int m_spriteScale; // what's the exact fireball sprite scale?
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};
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TYPEDESCRIPTION CEnvExplosion::m_SaveData[] =
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{
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DEFINE_FIELD( CEnvExplosion, m_iMagnitude, FIELD_INTEGER ),
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DEFINE_FIELD( CEnvExplosion, m_spriteScale, FIELD_INTEGER ),
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};
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IMPLEMENT_SAVERESTORE( CEnvExplosion, CBaseMonster );
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LINK_ENTITY_TO_CLASS( env_explosion, CEnvExplosion );
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void CEnvExplosion::KeyValue( KeyValueData *pkvd )
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{
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if (FStrEq(pkvd->szKeyName, "iMagnitude"))
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{
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m_iMagnitude = atoi(pkvd->szValue);
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pkvd->fHandled = TRUE;
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}
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else
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CBaseEntity::KeyValue( pkvd );
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}
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void CEnvExplosion::Spawn( void )
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{
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pev->solid = SOLID_NOT;
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pev->effects = EF_NODRAW;
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pev->movetype = MOVETYPE_NONE;
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/*
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if ( m_iMagnitude > 250 )
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{
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m_iMagnitude = 250;
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}
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*/
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float flSpriteScale;
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flSpriteScale = ( m_iMagnitude - 50) * 0.6;
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/*
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if ( flSpriteScale > 50 )
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{
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flSpriteScale = 50;
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}
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*/
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if ( flSpriteScale < 10 )
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{
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flSpriteScale = 10;
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}
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m_spriteScale = (int)flSpriteScale;
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}
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void CEnvExplosion::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
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{
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TraceResult tr;
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pev->model = iStringNull;//invisible
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pev->solid = SOLID_NOT;// intangible
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Vector vecSpot;// trace starts here!
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vecSpot = pev->origin + Vector ( 0 , 0 , 8 );
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UTIL_TraceLine ( vecSpot, vecSpot + Vector ( 0, 0, -40 ), ignore_monsters, ENT(pev), & tr);
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// Pull out of the wall a bit
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if ( tr.flFraction != 1.0 )
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{
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pev->origin = tr.vecEndPos + (tr.vecPlaneNormal * (m_iMagnitude - 24) * 0.6);
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}
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else
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{
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pev->origin = pev->origin;
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}
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// draw decal
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if (! ( pev->spawnflags & SF_ENVEXPLOSION_NODECAL))
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{
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if ( RANDOM_FLOAT( 0 , 1 ) < 0.5 )
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{
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UTIL_DecalTrace( &tr, DECAL_SCORCH1 );
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}
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else
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{
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UTIL_DecalTrace( &tr, DECAL_SCORCH2 );
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}
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}
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// draw fireball
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if ( !( pev->spawnflags & SF_ENVEXPLOSION_NOFIREBALL ) )
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{
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MESSAGE_BEGIN( MSG_PAS, SVC_TEMPENTITY, pev->origin );
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WRITE_BYTE( TE_EXPLOSION);
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WRITE_COORD( pev->origin.x );
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WRITE_COORD( pev->origin.y );
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WRITE_COORD( pev->origin.z );
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WRITE_SHORT( g_sModelIndexFireball );
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WRITE_BYTE( (BYTE)m_spriteScale ); // scale * 10
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WRITE_BYTE( 15 ); // framerate
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WRITE_BYTE( TE_EXPLFLAG_NONE );
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MESSAGE_END();
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}
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else
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{
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MESSAGE_BEGIN( MSG_PAS, SVC_TEMPENTITY, pev->origin );
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WRITE_BYTE( TE_EXPLOSION);
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WRITE_COORD( pev->origin.x );
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WRITE_COORD( pev->origin.y );
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WRITE_COORD( pev->origin.z );
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WRITE_SHORT( g_sModelIndexFireball );
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WRITE_BYTE( 0 ); // no sprite
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WRITE_BYTE( 15 ); // framerate
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WRITE_BYTE( TE_EXPLFLAG_NONE );
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MESSAGE_END();
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}
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// do damage
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if ( !( pev->spawnflags & SF_ENVEXPLOSION_NODAMAGE ) )
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{
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RadiusDamage ( pev, pev, m_iMagnitude, CLASS_NONE, DMG_BLAST );
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}
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SetThink( &CEnvExplosion::Smoke );
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pev->nextthink = gpGlobals->time + 0.3;
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// draw sparks
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if ( !( pev->spawnflags & SF_ENVEXPLOSION_NOSPARKS ) )
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{
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int sparkCount = RANDOM_LONG(0,3);
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for ( int i = 0; i < sparkCount; i++ )
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{
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Create( "spark_shower", pev->origin, tr.vecPlaneNormal, NULL );
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}
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}
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}
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void CEnvExplosion::Smoke( void )
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{
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if ( !( pev->spawnflags & SF_ENVEXPLOSION_NOSMOKE ) )
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{
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MESSAGE_BEGIN( MSG_PAS, SVC_TEMPENTITY, pev->origin );
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WRITE_BYTE( TE_SMOKE );
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WRITE_COORD( pev->origin.x );
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WRITE_COORD( pev->origin.y );
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WRITE_COORD( pev->origin.z );
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WRITE_SHORT( g_sModelIndexSmoke );
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WRITE_BYTE( (BYTE)m_spriteScale ); // scale * 10
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WRITE_BYTE( 12 ); // framerate
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MESSAGE_END();
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}
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if ( !(pev->spawnflags & SF_ENVEXPLOSION_REPEATABLE) )
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{
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UTIL_Remove( this );
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}
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}
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// HACKHACK -- create one of these and fake a keyvalue to get the right explosion setup
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void ExplosionCreate( const Vector ¢er, const Vector &angles, edict_t *pOwner, int magnitude, BOOL doDamage, int inExplosionTeam)
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{
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KeyValueData kvd;
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char buf[128];
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CBaseEntity *pExplosion = CBaseEntity::Create( "env_explosion", center, angles, pOwner );
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CEnvExplosion* theExplosion = dynamic_cast<CEnvExplosion*>(pExplosion);
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ASSERT(theExplosion);
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pExplosion->pev->team = inExplosionTeam;
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sprintf( buf, "%3d", magnitude );
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kvd.szKeyName = "iMagnitude";
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kvd.szValue = buf;
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pExplosion->KeyValue( &kvd );
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if ( !doDamage )
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pExplosion->pev->spawnflags |= SF_ENVEXPLOSION_NODAMAGE;
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pExplosion->Spawn();
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pExplosion->Use( NULL, NULL, USE_TOGGLE, 0 );
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}
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