1HEADmaster

1 files changed, 483 insertions, 0 deletions

diff --git a/game/server/physics_cannister.cpp b/game/server/physics_cannister.cpp
new file mode 100644
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+++ b/game/server/physics_cannister.cpp
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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "basecombatcharacter.h"
+#include "entityoutput.h"
+#include "physics.h"
+#include "explode.h"
+#include "vphysics_interface.h"
+#include "collisionutils.h"
+#include "steamjet.h"
+#include "eventqueue.h"
+#include "soundflags.h"
+#include "engine/IEngineSound.h"
+#include "props.h"
+#include "physics_cannister.h"
+#include "globals.h"
+#include "physics_saverestore.h"
+#include "shareddefs.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+#define SF_CANNISTER_ASLEEP		0x0001
+#define SF_CANNISTER_EXPLODE	0x0002
+
+BEGIN_SIMPLE_DATADESC( CThrustController )
+
+	DEFINE_FIELD( m_thrustVector,	FIELD_VECTOR ),
+	DEFINE_FIELD( m_torqueVector,	FIELD_VECTOR ),
+	DEFINE_KEYFIELD( m_thrust,		FIELD_FLOAT, "thrust" ),
+
+END_DATADESC()
+
+
+LINK_ENTITY_TO_CLASS( physics_cannister, CPhysicsCannister );
+
+BEGIN_DATADESC( CPhysicsCannister )
+
+	DEFINE_OUTPUT( m_onActivate, "OnActivate" ),
+	DEFINE_OUTPUT( m_OnAwakened, "OnAwakened" ),
+	DEFINE_FIELD( m_thrustOrigin, FIELD_VECTOR ),	// this is a position, but in local space
+	DEFINE_EMBEDDED( m_thruster ),
+	DEFINE_PHYSPTR( m_pController ),
+	DEFINE_FIELD( m_pJet, FIELD_CLASSPTR ),
+	DEFINE_FIELD( m_active, FIELD_BOOLEAN ),
+	DEFINE_KEYFIELD( m_thrustTime, FIELD_FLOAT, "fuel" ),
+	DEFINE_KEYFIELD( m_damage, FIELD_FLOAT, "expdamage" ),
+	DEFINE_KEYFIELD( m_damageRadius, FIELD_FLOAT, "expradius" ),
+	DEFINE_FIELD( m_activateTime, FIELD_TIME ),
+	DEFINE_KEYFIELD( m_gasSound, FIELD_SOUNDNAME, "gassound" ),
+	DEFINE_FIELD( m_bFired, FIELD_BOOLEAN ),
+
+	// Physics Influence
+	DEFINE_FIELD( m_hPhysicsAttacker, FIELD_EHANDLE ),
+	DEFINE_FIELD( m_flLastPhysicsInfluenceTime, FIELD_TIME ),
+	DEFINE_FIELD( m_hLauncher, FIELD_EHANDLE ),
+
+	DEFINE_INPUTFUNC( FIELD_VOID, "Activate", InputActivate ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Deactivate", InputDeactivate ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Explode", InputExplode ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Wake", InputWake ),
+
+	DEFINE_THINKFUNC( BeginShutdownThink ),
+	DEFINE_ENTITYFUNC( ExplodeTouch ),
+
+END_DATADESC()
+
+void CPhysicsCannister::Spawn( void )
+{
+	Precache();
+	SetModel( STRING(GetModelName()) );
+	SetBloodColor( DONT_BLEED );
+
+	AddSolidFlags( FSOLID_CUSTOMRAYTEST );
+	m_takedamage = DAMAGE_YES;
+	SetNextThink( TICK_NEVER_THINK );
+
+	if ( m_iHealth <= 0 )
+		m_iHealth = 25;
+
+	m_flAnimTime = gpGlobals->curtime;
+	m_flPlaybackRate = 0.0;
+	SetCycle( 0 );
+	m_bFired = false;
+
+	// not thrusting
+	m_active = false;
+
+	CreateVPhysics();
+	if ( !VPhysicsGetObject() )
+	{
+		// must have a physics object or code will crash later
+		UTIL_Remove(this);
+	}
+}
+
+void CPhysicsCannister::OnRestore()
+{
+	BaseClass::OnRestore();
+	if ( m_pController )
+	{
+		m_pController->SetEventHandler( &m_thruster );
+	}
+}
+
+bool CPhysicsCannister::CreateVPhysics()
+{
+	bool asleep = HasSpawnFlags(SF_CANNISTER_ASLEEP);
+
+	VPhysicsInitNormal( SOLID_VPHYSICS, 0, asleep );
+	return true;
+}
+
+bool CPhysicsCannister::TestCollision( const Ray_t &ray, unsigned int mask, trace_t& trace )
+{
+	Vector vecAbsMins, vecAbsMaxs;
+	CollisionProp()->WorldSpaceAABB( &vecAbsMins, &vecAbsMaxs );
+
+	if ( !IsBoxIntersectingRay( vecAbsMins, vecAbsMaxs, ray.m_Start, ray.m_Delta ) )
+		return false;
+	
+	return BaseClass::TestCollision( ray, mask, trace );
+}
+
+Vector CPhysicsCannister::CalcLocalThrust( const Vector &offset )
+{
+	matrix3x4_t nozzleMatrix;
+	Vector thrustDirection;
+
+	GetAttachment( LookupAttachment("nozzle"), nozzleMatrix );
+	MatrixGetColumn( nozzleMatrix, 2, thrustDirection );
+	MatrixGetColumn( nozzleMatrix, 3, m_thrustOrigin );
+	thrustDirection = -5*thrustDirection + offset;
+	VectorNormalize( thrustDirection );
+	return thrustDirection;
+}
+
+
+CPhysicsCannister::~CPhysicsCannister( void )
+{
+}
+
+void CPhysicsCannister::Precache( void )
+{
+	PropBreakablePrecacheAll( GetModelName() );
+	if ( m_gasSound != NULL_STRING )
+	{
+		PrecacheScriptSound( STRING(m_gasSound) );
+	}
+	BaseClass::Precache();
+}
+
+int CPhysicsCannister::OnTakeDamage( const CTakeDamageInfo &info )
+{
+	// HACKHACK: Shouldn't g_vecAttackDir be a parameter to this function?
+	if ( !m_takedamage )
+		return 0;
+
+	if ( !m_active )
+	{
+		m_iHealth -= info.GetDamage();
+		if ( m_iHealth < 0 )
+		{
+			Explode( info.GetAttacker() );
+		}
+		else
+		{
+			// explosions that don't destroy will activate
+			// 50% of the time blunt damage will activate as well
+			if ( (info.GetDamageType() & DMG_BLAST) ||
+				( (info.GetDamageType() & (DMG_CLUB|DMG_SLASH|DMG_CRUSH) ) && random->RandomInt(1,100) < 50 ) )
+			{
+				CannisterActivate( info.GetAttacker(), g_vecAttackDir );
+			}
+		}
+		return 1;
+	}
+
+	if ( (gpGlobals->curtime - m_activateTime) <= 0.1 )
+		return 0;
+
+	if ( info.GetDamageType() & (DMG_BULLET|DMG_BUCKSHOT|DMG_BURN|DMG_BLAST) )
+	{
+		Explode( info.GetAttacker() );
+	}
+
+	return 0;
+}
+
+
+void CPhysicsCannister::TraceAttack( const CTakeDamageInfo &info, const Vector &dir, trace_t *ptr, CDmgAccumulator *pAccumulator )
+{
+	if ( !m_active && ptr->hitgroup != 0 )
+	{
+		Vector direction = -dir;
+		direction.z -= 5;
+		VectorNormalize( direction );
+		CannisterActivate( info.GetAttacker(), direction );
+	}
+	BaseClass::TraceAttack( info, dir, ptr, pAccumulator );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::CannisterActivate( CBaseEntity *pActivator, const Vector &thrustOffset )
+{
+	// already active or spent
+	if ( m_active || !m_thrustTime )
+	{
+		return;
+	}
+
+	m_hLauncher = pActivator;
+
+	Vector thrustDirection = CalcLocalThrust( thrustOffset );
+	m_onActivate.FireOutput( pActivator, this, 0 );
+	m_thruster.CalcThrust( m_thrustOrigin, thrustDirection, VPhysicsGetObject() );
+	m_pController = physenv->CreateMotionController( &m_thruster );
+	IPhysicsObject *pPhys = VPhysicsGetObject();
+	m_pController->AttachObject( pPhys, true );
+	// Make sure the object is simulated
+	pPhys->Wake();
+
+	m_active = true;
+	m_activateTime = gpGlobals->curtime;
+	SetNextThink( gpGlobals->curtime + m_thrustTime );
+	SetThink( &CPhysicsCannister::BeginShutdownThink );
+
+	QAngle angles;
+	VectorAngles( -thrustDirection, angles );
+	m_pJet = dynamic_cast<CSteamJet *>( CBaseEntity::Create( "env_steam", m_thrustOrigin, angles, this ) );
+	m_pJet->SetParent( this );
+
+	float extra = m_thruster.m_thrust * (1/5000.f);
+	extra = clamp( extra, 0.f, 1.f );
+
+	m_pJet->m_SpreadSpeed = 15 * m_thruster.m_thrust * 0.001;
+	m_pJet->m_Speed = 128 + 100 * extra;
+	m_pJet->m_StartSize = 10;
+	m_pJet->m_EndSize = 25;
+
+	m_pJet->m_Rate = 52 + (int)extra*20;
+	m_pJet->m_JetLength = 64;
+	m_pJet->m_clrRender = m_clrRender;
+
+	m_pJet->Use( this, this, USE_ON, 1 );
+	if ( m_gasSound != NULL_STRING )
+	{
+		CPASAttenuationFilter filter( this );
+
+		EmitSound_t ep;
+		ep.m_nChannel = CHAN_ITEM;
+		ep.m_pSoundName =  STRING(m_gasSound);
+		ep.m_flVolume = 1.0f;
+		ep.m_SoundLevel = SNDLVL_NORM;
+
+		EmitSound( filter, entindex(), ep );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: The cannister's been fired by a weapon, so it should stay pretty accurate
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::CannisterFire( CBaseEntity *pActivator )
+{
+	m_bFired = true;
+
+	// Increase thrust
+	m_thruster.m_thrust *= 4;
+
+	// Only last a short time
+	m_thrustTime = 10.0;
+
+	// Explode on contact
+	SetTouch( &CPhysicsCannister::ExplodeTouch );
+
+	CannisterActivate( pActivator, vec3_origin );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Input handler for activating the cannister.
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::InputActivate( inputdata_t &data )
+{
+	CannisterActivate( data.pActivator, Vector(0,0.1,-0.25) );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Input handler for deactivating the cannister.
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::InputDeactivate(inputdata_t &data)
+{
+	Deactivate();
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Input handler for making the cannister go boom.
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::InputExplode(inputdata_t &data)
+{
+	Explode( data.pActivator );
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: Input handler for waking up the cannister if it is sleeping.
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::InputWake( inputdata_t &data )
+{
+	IPhysicsObject *pPhys = VPhysicsGetObject();
+	if ( pPhys != NULL )
+	{
+		pPhys->Wake();
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::Deactivate(void)
+{
+	if ( !m_pController )
+		return;
+
+	m_pController->DetachObject( VPhysicsGetObject() );
+	physenv->DestroyMotionController( m_pController );
+	m_pController = NULL;
+	SetNextThink( TICK_NEVER_THINK );
+	m_thrustTime = 0;
+	m_active = false;
+	if ( m_pJet )
+	{
+		ShutdownJet();
+	}
+	if ( m_gasSound != NULL_STRING )
+	{
+		StopSound( entindex(), CHAN_ITEM, STRING(m_gasSound) );
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::Explode( CBaseEntity *pAttacker )
+{
+	// don't recurse
+	m_takedamage = 0;
+	Deactivate();
+
+	Vector velocity;
+	AngularImpulse angVelocity;
+	IPhysicsObject *pPhysics = VPhysicsGetObject();
+
+	pPhysics->GetVelocity( &velocity, &angVelocity );
+	PropBreakableCreateAll( GetModelIndex(), pPhysics, GetAbsOrigin(), GetAbsAngles(), velocity, angVelocity, 1.0, 20, COLLISION_GROUP_DEBRIS );
+	ExplosionCreate( GetAbsOrigin(), GetAbsAngles(), pAttacker, m_damage, 0, true );
+	UTIL_Remove( this );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Explode when I next hit a damageable entity
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::ExplodeTouch( CBaseEntity *pOther )
+{
+	if ( !pOther->m_takedamage )
+		return;
+
+	Explode( m_hLauncher );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::VPhysicsCollision( int index, gamevcollisionevent_t *pEvent )
+{
+	if ( m_bFired && m_active )
+	{
+		int otherIndex = !index;
+		CBaseEntity *pHitEntity = pEvent->pEntities[otherIndex];
+		if ( pEvent->deltaCollisionTime < 0.5 && (pHitEntity == this) )
+			return;
+
+		// If we hit hard enough. explode
+		if ( pEvent->collisionSpeed > 1000 )
+		{
+			Explode( m_hLauncher );
+			return;
+		}
+	}
+
+	BaseClass::VPhysicsCollision( index, pEvent );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::ShutdownJet( void )
+{
+	g_EventQueue.AddEvent( m_pJet, "kill", 5, NULL, NULL );
+
+	m_pJet->m_bEmit = false;
+	m_pJet->m_Rate = 0;
+	m_pJet = NULL;
+	SetNextThink( TICK_NEVER_THINK );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: The think just shuts the cannister down
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::BeginShutdownThink( void )
+{
+	Deactivate();
+}
+
+//-----------------------------------------------------------------------------
+// Physics Attacker
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::SetPhysicsAttacker( CBasePlayer *pEntity, float flTime )
+{
+	m_hPhysicsAttacker = pEntity;
+	m_flLastPhysicsInfluenceTime = flTime;
+}
+
+	
+//-----------------------------------------------------------------------------
+// Purpose: Keep track of physgun influence
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::OnPhysGunPickup( CBasePlayer *pPhysGunUser, PhysGunPickup_t reason )
+{
+	SetPhysicsAttacker( pPhysGunUser, gpGlobals->curtime );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::OnPhysGunDrop( CBasePlayer *pPhysGunUser, PhysGunDrop_t Reason )
+{
+	SetPhysicsAttacker( pPhysGunUser, gpGlobals->curtime );
+	if ( Reason == LAUNCHED_BY_CANNON )
+	{
+		CannisterActivate( pPhysGunUser, vec3_origin );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+CBasePlayer *CPhysicsCannister::HasPhysicsAttacker( float dt )
+{
+	if (gpGlobals->curtime - dt <= m_flLastPhysicsInfluenceTime)
+	{
+		return m_hPhysicsAttacker;
+	}
+	return NULL;
+}
+//-----------------------------------------------------------------------------
+// Purpose: Update the visible representation of the physic system's representation of this object
+//-----------------------------------------------------------------------------
+void CPhysicsCannister::VPhysicsUpdate( IPhysicsObject *pPhysics )
+{
+	BaseClass::VPhysicsUpdate( pPhysics );
+
+	// if this is the first time we have moved, fire our target
+	if ( HasSpawnFlags( SF_CANNISTER_ASLEEP ) )
+	{
+		if ( !pPhysics->IsAsleep() )
+		{
+			m_OnAwakened.FireOutput(this, this);
+			RemoveSpawnFlags( SF_CANNISTER_ASLEEP );
+		}
+	}
+}
\ No newline at end of file