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game/server/tf/func_forcefield.cpp

@@ -0,0 +1,151 @@
+//========= 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;
+}