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game/server/tf2/order_heal.cpp

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#include "cbase.h"
+#include "order_heal.h"
+#include "tf_team.h"
+#include "tf_playerclass.h"
+#include "order_helpers.h"
+
+
+#define MAX_HEAL_DIST 1500
+
+IMPLEMENT_SERVERCLASS_ST( COrderHeal, DT_OrderHeal )
+END_SEND_TABLE()
+
+
+bool IsValidFn_Heal( void *pUserData, int a )
+{
+	// Can't heal dead players.
+	CSortBase *p = (CSortBase*)pUserData;
+	CBasePlayer *pPlayer = p->m_pPlayer->GetTeam()->GetPlayer( a );
+
+	// Can't heal yourself...
+	if (p->m_pPlayer == pPlayer)
+		return false;
+
+	// Don't heal players that are too far away...
+	const Vector &vPlayer = p->m_pPlayer->GetAbsOrigin();
+	if (vPlayer.DistToSqr(pPlayer->GetAbsOrigin()) > MAX_HEAL_DIST * MAX_HEAL_DIST )
+		return false;
+
+	return pPlayer->IsAlive() && pPlayer->m_iHealth < pPlayer->m_iMaxHealth;
+}
+
+
+int SortFn_Heal( void *pUserData, int a, int b )
+{
+	CSortBase *p = (CSortBase*)pUserData;
+	
+	const Vector &vPlayer = p->m_pPlayer->GetAbsOrigin();
+	const Vector &va = p->m_pPlayer->GetTeam()->GetPlayer( a )->GetAbsOrigin();
+	const Vector &vb = p->m_pPlayer->GetTeam()->GetPlayer( b )->GetAbsOrigin();
+
+	return vPlayer.DistToSqr( va ) < vPlayer.DistToSqr( vb );
+}
+
+
+bool COrderHeal::CreateOrder( CPlayerClass *pClass )
+{
+	CTFTeam *pTeam = pClass->GetTeam();
+
+	CSortBase info;
+	info.m_pPlayer = pClass->GetPlayer();
+
+	int sorted[MAX_PLAYERS];
+	int nSorted = BuildSortedActiveList( 
+		sorted,
+		MAX_PLAYERS,
+		SortFn_Heal,
+		IsValidFn_Heal,
+		&info,
+		pTeam->GetNumPlayers()
+		);
+
+	if ( nSorted )
+	{
+		COrderHeal *pOrder = new COrderHeal;
+		
+		pClass->GetTeam()->AddOrder( 
+			ORDER_HEAL, 
+			pTeam->GetPlayer( sorted[0] ), 
+			pClass->GetPlayer(), 
+			1e24,
+			60,
+			pOrder );
+
+		return true;
+	}
+	else
+	{
+		return false;
+	}
+}
+
+
+bool COrderHeal::Update()
+{
+	CBaseEntity *pTarget = GetTargetEntity();
+	if ( !pTarget || pTarget->m_iHealth >= pTarget->m_iMaxHealth )
+		return true;
+
+	return false;	
+}
+
+
+bool COrderHeal::UpdateOnEvent( COrderEvent_Base *pEvent )
+{
+	if ( pEvent->GetType() == ORDER_EVENT_PLAYER_KILLED )
+	{
+		COrderEvent_PlayerKilled *pKilled = (COrderEvent_PlayerKilled*)pEvent;
+		if ( pKilled->m_pPlayer == GetTargetEntity() )
+			return true;
+	}
+
+	return BaseClass::UpdateOnEvent( pEvent );
+}
+