//-----------------------------------------------------------------------------
// Purpose: Create a constraint between this object and another
// Input : *pObject - Object to constrain ourselves to
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CWeaponStriderBuster::CreateConstraintToObject( CBaseEntity *pObject )
{
if ( m_pConstraint != NULL )
{
// Should we destroy the constraint and make a new one at this point?
Assert( 0 );
return false;
}
if ( pObject == NULL )
return false;
IPhysicsObject *pPhysObject = pObject->VPhysicsGetObject();
if ( pPhysObject == NULL )
return false;
IPhysicsObject *pMyPhysObject = VPhysicsGetObject();
if ( pPhysObject == NULL )
return false;
// Create the fixed constraint
constraint_fixedparams_t fixedConstraint;
fixedConstraint.Defaults();
fixedConstraint.InitWithCurrentObjectState( pPhysObject, pMyPhysObject );
IPhysicsConstraint *pConstraint = physenv->CreateFixedConstraint( pPhysObject, pMyPhysObject, NULL, fixedConstraint );
if ( pConstraint == NULL )
return false;
// Hold on to us
m_pConstraint = pConstraint;
pConstraint->SetGameData( (void *)this );
m_hConstrainedEntity = pObject->GetOwnerEntity();;
// Disable collisions between the two ents
PhysDisableObjectCollisions( pPhysObject, pMyPhysObject );
return true;
}
//-----------------------------------------------------------------------------
// Purpose: Update the impale entity's position to the hydra's desired
//-----------------------------------------------------------------------------
void CHydraImpale::ImpaleThink( void )
{
if ( !m_hHydra )
{
// Remove ourselves.
m_pConstraint->Deactivate();
UTIL_Remove( this );
return;
}
// Ask the Hydra where he'd like the ragdoll, and move ourselves there
Vector vecOrigin;
QAngle vecAngles;
m_hHydra->GetDesiredImpaledPosition( &vecOrigin, &vecAngles );
SetAbsOrigin( vecOrigin );
SetAbsAngles( vecAngles );
//NDebugOverlay::Cross3D( vecOrigin, Vector( -5, -5, -5 ), Vector( 5, 5, 5 ), 255, 0, 0, 20, .1);
SetNextThink( gpGlobals->curtime + 0.1f );
}
//-----------------------------------------------------------------------------
// Purpose: Activate/create the constraint
//-----------------------------------------------------------------------------
IPhysicsConstraint *CHydraImpale::CreateConstraint( CNPC_Hydra *pHydra, IPhysicsObject *pTargetPhys, IPhysicsConstraintGroup *pGroup )
{
m_hHydra = pHydra;
IPhysicsObject *pImpalePhysObject = VPhysicsGetObject();
Assert( pImpalePhysObject );
constraint_fixedparams_t fixed;
fixed.Defaults();
fixed.InitWithCurrentObjectState( pImpalePhysObject, pTargetPhys );
fixed.constraint.Defaults();
m_pConstraint = physenv->CreateFixedConstraint( pImpalePhysObject, pTargetPhys, pGroup, fixed );
if ( m_pConstraint )
{
m_pConstraint->SetGameData( (void *)this );
}
SetThink( ImpaleThink );
SetNextThink( gpGlobals->curtime );
return m_pConstraint;
}
void CWeaponHL2MPBase::FallInit( void )
{
#ifndef CLIENT_DLL
SetModel( GetWorldModel() );
VPhysicsDestroyObject();
if ( HasSpawnFlags( SF_NORESPAWN ) == false )
{
SetMoveType( MOVETYPE_NONE );
SetSolid( SOLID_BBOX );
AddSolidFlags( FSOLID_TRIGGER );
UTIL_DropToFloor( this, MASK_SOLID );
}
else
{
if ( !VPhysicsInitNormal( SOLID_BBOX, GetSolidFlags() | FSOLID_TRIGGER, false ) )
{
SetMoveType( MOVETYPE_NONE );
SetSolid( SOLID_BBOX );
AddSolidFlags( FSOLID_TRIGGER );
}
else
{
#if !defined( CLIENT_DLL )
// Constrained start?
if ( HasSpawnFlags( SF_WEAPON_START_CONSTRAINED ) )
{
//Constrain the weapon in place
IPhysicsObject *pReferenceObject, *pAttachedObject;
pReferenceObject = g_PhysWorldObject;
pAttachedObject = VPhysicsGetObject();
if ( pReferenceObject && pAttachedObject )
{
constraint_fixedparams_t fixed;
fixed.Defaults();
fixed.InitWithCurrentObjectState( pReferenceObject, pAttachedObject );
fixed.constraint.forceLimit = lbs2kg( 10000 );
fixed.constraint.torqueLimit = lbs2kg( 10000 );
IPhysicsConstraint *pConstraint = GetConstraint();
pConstraint = physenv->CreateFixedConstraint( pReferenceObject, pAttachedObject, NULL, fixed );
pConstraint->SetGameData( (void *) this );
}
}
#endif //CLIENT_DLL
}
}
SetPickupTouch();
SetThink( &CBaseCombatWeapon::FallThink );
SetNextThink( gpGlobals->curtime + 0.1f );
#endif
}
void CPhysMotor::Activate( void )
{
BaseClass::Activate();
// This gets called after all objects spawn and after all objects restore
if ( m_attachedObject == NULL )
{
CBaseEntity *pAttach = gEntList.FindEntityByName( NULL, m_nameAttach, NULL );
if ( pAttach && pAttach->GetMoveType() == MOVETYPE_VPHYSICS )
{
m_attachedObject = pAttach;
IPhysicsObject *pPhys = m_attachedObject->VPhysicsGetObject();
CalculateAcceleration();
matrix3x4_t matrix;
pPhys->GetPositionMatrix( matrix );
Vector motorAxis_ls;
VectorIRotate( m_motor.m_axis, matrix, motorAxis_ls );
float inertia = DotProductAbs( pPhys->GetInertia(), motorAxis_ls );
m_motor.m_maxTorque = inertia * m_motor.m_inertiaFactor * (m_angularAcceleration + m_additionalAcceleration);
m_motor.m_restistanceDamping = 1.0f;
}
}
if ( m_attachedObject )
{
IPhysicsObject *pPhys = m_attachedObject->VPhysicsGetObject();
// create a hinge constraint for this object?
if ( m_spawnflags & SF_MOTOR_HINGE )
{
// UNDONE: Don't do this on restore?
if ( !m_pHinge )
{
constraint_hingeparams_t hingeParams;
hingeParams.Defaults();
hingeParams.worldAxisDirection = m_motor.m_axis;
hingeParams.worldPosition = GetLocalOrigin();
m_pHinge = physenv->CreateHingeConstraint( g_PhysWorldObject, pPhys, NULL, hingeParams );
m_pHinge->SetGameData( (void *)this );
}
if ( m_spawnflags & SF_MOTOR_NOCOLLIDE )
{
physenv->DisableCollisions( pPhys, g_PhysWorldObject );
}
}
else
{
m_pHinge = NULL;
}
// NOTE: On restore, this path isn't run because m_pController will not be NULL
if ( !m_pController )
{
m_pController = physenv->CreateMotionController( &m_motor );
m_pController->AttachObject( m_attachedObject->VPhysicsGetObject() );
if ( m_spawnflags & SF_MOTOR_START_ON )
{
TurnOn();
}
}
}
// Need to do this on restore since there's no good way to save this
if ( m_pController )
{
m_pController->SetEventHandler( &m_motor );
}
}
