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engines/hpl1/penumbra-overture/TriggerHandler.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of Penumbra Overture.
+ */
+
+#include "hpl1/penumbra-overture/TriggerHandler.h"
+
+#include "hpl1/algorithms.h"
+#include "hpl1/penumbra-overture/GameEnemy.h"
+#include "hpl1/penumbra-overture/Init.h"
+#include "hpl1/penumbra-overture/MapHandler.h"
+
+//////////////////////////////////////////////////////////////////////////
+// TRIGGER
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+cGameTrigger::cGameTrigger() : iEntity3D("") {
+	SetRadius(1);
+}
+
+//-----------------------------------------------------------------------
+
+void cGameTrigger::SetRadius(float afX) {
+	mfRadius = afX;
+	mBoundingVolume.SetSize(mfRadius * 2);
+}
+
+//-----------------------------------------------------------------------
+
+//////////////////////////////////////////////////////////////////////////
+// CONSTRUCTORS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+cTriggerHandler::cTriggerHandler(cInit *apInit) : iUpdateable("TriggerHandler") {
+	mpInit = apInit;
+}
+
+//-----------------------------------------------------------------------
+
+cTriggerHandler::~cTriggerHandler(void) {
+	STLMapDeleteAll(m_mapTriggers);
+}
+
+//-----------------------------------------------------------------------
+
+//////////////////////////////////////////////////////////////////////////
+// PUBLIC METHODS
+//////////////////////////////////////////////////////////////////////////
+
+//-----------------------------------------------------------------------
+
+cGameTrigger *cTriggerHandler::Add(cGameTrigger *apTrigger, eGameTriggerType aType,
+								   const cVector3f &avLocalPos,
+								   int alPrio, float afTime, float afRadius) {
+	apTrigger->SetRadius(afRadius);
+	apTrigger->mfTimeCount = afTime;
+	apTrigger->mlPrio = alPrio;
+	apTrigger->mType = aType;
+	apTrigger->SetPosition(avLocalPos);
+
+	m_mapTriggers.insert(tGameTriggerMap::value_type(alPrio, apTrigger));
+
+	return apTrigger;
+}
+
+//-----------------------------------------------------------------------
+
+void cTriggerHandler::OnStart() {
+	mpMapHandler = mpInit->mpMapHandler;
+}
+
+//-----------------------------------------------------------------------
+
+void cTriggerHandler::Update(float afTimeStep) {
+	//////////////////////////////////////////////
+	// Go through the enemies and hand them triggers
+	tGameEnemyIterator EnemyIt = mpMapHandler->GetGameEnemyIterator();
+	while (EnemyIt.HasNext()) {
+		iGameEnemy *pEnemy = EnemyIt.Next();
+		if (pEnemy->IsActive() == false || pEnemy->GetUsesTriggers() == false)
+			continue;
+
+		/////////////////////////////////////////
+		// Check if it is time to update triggers.
+		/*if(pEnemy->GetTriggerUpdateCount() >= pEnemy->GetTriggerUpdateRate())
+		{
+			pEnemy->SetTriggerUpdateCount(0);
+		}
+		else
+		{
+			pEnemy->SetTriggerUpdateCount(pEnemy->GetTriggerUpdateCount() + afTimeStep);
+			continue;
+		}*/
+
+		/////////////////////////////////////
+		// Go through triggers by priority
+		tGameTriggerMapIt TriggerIt = m_mapTriggers.begin();
+		for (; TriggerIt != m_mapTriggers.end(); ++TriggerIt) {
+			cGameTrigger *pTrigger = TriggerIt->second;
+
+			// Check if trigger is of right type
+			if (!(pTrigger->GetType() & pEnemy->GetTriggerTypes())) {
+				continue;
+			}
+
+			// Check if trigger is in reach
+			if (cMath::PointBVCollision(pEnemy->GetPosition(), *pTrigger->GetBoundingVolume()) == false) {
+				continue;
+			}
+
+			// Let enemy handle trigger, if false get next trigger else next enemy.
+			if (pEnemy->HandleTrigger(pTrigger)) {
+				break;
+			}
+		}
+	}
+
+	//////////////////////////////////
+	// Go through triggers and remove when timer is out.
+	auto const newEnd = Hpl1::removeIf(m_mapTriggers.begin(), m_mapTriggers.end(), [afTimeStep](tGameTriggerMap::value_type &pair) {
+		pair.second->mfTimeCount -= afTimeStep;
+		if (pair.second->mfTimeCount <= 0) {
+			hplDelete(pair.second);
+			return true;
+		}
+		return false;
+	});
+	m_mapTriggers.erase(newEnd, m_mapTriggers.end());
+}
+
+//-----------------------------------------------------------------------
+
+void cTriggerHandler::Reset() {
+}