Team Fortress 2 Source Code as on 22/4/2020
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=============================================================================
#include "cbase.h"
#include "func_forcefield.h"
#include "tf_shareddefs.h"
#include "tf_gamerules.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
IMPLEMENT_AUTO_LIST( IFuncForceFieldAutoList );
//===========================================================================================================
LINK_ENTITY_TO_CLASS( func_forcefield, CFuncForceField );
BEGIN_DATADESC( CFuncForceField )
END_DATADESC()
IMPLEMENT_SERVERCLASS_ST( CFuncForceField, DT_FuncForceField )
END_SEND_TABLE()
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CFuncForceField::Spawn( void )
{
BaseClass::Spawn();
SetActive( IsOn() );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
int CFuncForceField::UpdateTransmitState()
{
return SetTransmitState( FL_EDICT_ALWAYS );
}
//-----------------------------------------------------------------------------
// Purpose: Only transmit this entity to clients that aren't in our team
//-----------------------------------------------------------------------------
int CFuncForceField::ShouldTransmit( const CCheckTransmitInfo *pInfo )
{
return FL_EDICT_ALWAYS;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CFuncForceField::TurnOff( void )
{
BaseClass::TurnOff();
SetActive( false );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CFuncForceField::TurnOn( void )
{
BaseClass::TurnOn();
SetActive( true );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
bool CFuncForceField::ShouldCollide( int collisionGroup, int contentsMask ) const
{
// Force fields are off during a team win
if ( TFGameRules()->State_Get() == GR_STATE_TEAM_WIN )
return false;
if ( GetTeamNumber() == TEAM_UNASSIGNED )
return false;
if ( collisionGroup == COLLISION_GROUP_PLAYER_MOVEMENT )
{
switch ( GetTeamNumber() )
{
case TF_TEAM_BLUE:
if ( !( contentsMask & CONTENTS_BLUETEAM ) )
return false;
break;
case TF_TEAM_RED:
if ( !( contentsMask & CONTENTS_REDTEAM ) )
return false;
break;
}
return true;
}
return false;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CFuncForceField::SetActive( bool bActive )
{
if ( bActive )
{
// We're a trigger, but we want to be solid. Our ShouldCollide() will make
// us non-solid to members of the team that spawns here.
RemoveSolidFlags( FSOLID_TRIGGER );
RemoveSolidFlags( FSOLID_NOT_SOLID );
}
else
{
AddSolidFlags( FSOLID_NOT_SOLID );
AddSolidFlags( FSOLID_TRIGGER );
}
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
bool PointsCrossForceField( const Vector& vecStart, const Vector &vecEnd, int nTeamToIgnore )
{
// Setup the ray.
Ray_t ray;
ray.Init( vecStart, vecEnd );
for ( int i = 0; i < IFuncForceFieldAutoList::AutoList().Count(); ++i )
{
CFuncForceField *pEntity = static_cast< CFuncForceField* >( IFuncForceFieldAutoList::AutoList()[i] );
if ( pEntity->m_iDisabled )
continue;
if ( pEntity->GetTeamNumber() == nTeamToIgnore && nTeamToIgnore != TEAM_UNASSIGNED )
continue;
trace_t trace;
enginetrace->ClipRayToEntity( ray, MASK_ALL, pEntity, &trace );
if ( trace.fraction < 1.0f )
{
return true;
}
}
return false;
}