Portable Half-Life SDK. GoldSource and Xash3D. Crossplatform.
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/***
*
* Copyright (c) 1996-2001, Valve LLC. All rights reserved.
*
* This product contains software technology licensed from Id
* Software, Inc. ("Id Technology"). Id Technology (c) 1996 Id Software, Inc.
* All Rights Reserved.
*
* Use, distribution, and modification of this source code and/or resulting
* object code is restricted to non-commercial enhancements to products from
* Valve LLC. All other use, distribution, or modification is prohibited
* without written permission from Valve LLC.
*
****/
#include "extdll.h"
#include "util.h"
#include "cbase.h"
#include "monsters.h"
#include "customentity.h"
#include "effects.h"
#include "weapons.h"
#include "decals.h"
#include "func_break.h"
#include "shake.h"
// pev->scale is amplitude
// pev->dmg_save is frequency
// pev->dmg_take is duration
// pev->dmg is radius
// radius of 0 means all players
// NOTE: UTIL_ScreenShake() will only shake players who are on the ground
#define SF_SHAKE_TYPE_SMALL 0x0001
#define SF_SHAKE_TYPE_MEDIUM 0x0002
#define SF_SHAKE_TYPE_HUGE 0x0004
// ==========================================
// Code changes for- Night at the Office:
// ==========================================
//
// -Entity: env_random_shake. An entity that randomly shakes
// the screen globally across the map, includes sounds effects.
// Purpose is to allow multiple shakes without the need of many
// entitys and triggers. The intensity of the shake is random,
// the duration is random and the delay between fires is also
// random.
class CRandomShake : public CBaseDelay
{
public:
void Spawn();
void Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value );
void KeyValue( KeyValueData *pkvd );
void Shake();
inline float Amplitude() { return pev->scale; }
inline float Frequency() { return pev->dmg_save; }
inline float Duration() { return pev->dmg_take; }
inline float Radius() { return pev->dmg; }
inline void SetAmplitude( float amplitude ) { pev->scale = amplitude; }
inline void SetFrequency( float frequency ) { pev->dmg_save = frequency; }
inline void SetDuration( float duration ) { pev->dmg_take = duration; }
inline void SetRadius( float radius ) { pev->dmg = radius; }
void EXPORT ShootThink();
int m_iShakeCount;
};
LINK_ENTITY_TO_CLASS( env_random_shake, CRandomShake )
void CRandomShake::Spawn()
{
pev->solid = SOLID_NOT;
pev->movetype = MOVETYPE_NONE;
pev->effects = 0;
pev->frame = 0;
SetRadius( 0 );
SetDuration( RANDOM_LONG( 2, 8 ) );
m_iShakeCount = 10;
if( m_flDelay == 0.0f )
m_flDelay = 0.1f;
SetAmplitude( 4.0f );
if( pev->spawnflags & SF_SHAKE_TYPE_SMALL )
SetAmplitude( RANDOM_FLOAT( 1.0f, 5.0f ) );
if( pev->spawnflags & SF_SHAKE_TYPE_MEDIUM )
SetAmplitude( RANDOM_FLOAT( 4.0f, 10.0f ) );
if( pev->spawnflags & SF_SHAKE_TYPE_HUGE )
SetAmplitude( RANDOM_FLOAT( 8.0f, 16.0f ) );
}
void CRandomShake::KeyValue( KeyValueData *pkvd )
{
if( FStrEq( pkvd->szKeyName, "frequency" ) )
{
SetFrequency( atof( pkvd->szValue ) );
pkvd->fHandled = TRUE;
}
else
CBaseDelay::KeyValue( pkvd );
}
void CRandomShake::Use( CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value )
{
SetThink( &CRandomShake::ShootThink );
pev->nextthink = gpGlobals->time;
}
void CRandomShake::Shake()
{
UTIL_ScreenShake( pev->origin, Amplitude(), Frequency(), Duration(), Radius() );
EMIT_GROUPNAME_SUIT( ENT( pev ), "FRAGILE" );
}
void CRandomShake::ShootThink()
{
m_flDelay = RANDOM_FLOAT( 9.0f, 24.0f );
pev->nextthink = gpGlobals->time + m_flDelay;
Shake();
if( --m_iShakeCount <= 0 )
{
m_iShakeCount += 10;
pev->nextthink = gpGlobals->time;
}
}