chase.h

/* 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.
 *
 * Additional copyright for this file:
 * Copyright (C) 1995-2013 Presto Studios, Inc.
 *
 * 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/>.
 *
 */
 
#ifndef PEGASUS_CHASE_H
#define PEGASUS_CHASE_H
 
#include "pegasus/hotspot.h"
#include "pegasus/interaction.h"
#include "pegasus/notification.h"
#include "pegasus/neighborhood/neighborhood.h"
 
namespace Pegasus {
 
// Notification constants.
 
static const NotificationFlags kChaseEnteredBranchZone = 1;
static const NotificationFlags kChaseExitedBranchZone = kChaseEnteredBranchZone << 1;
static const NotificationFlags kChaseFinished = kChaseExitedBranchZone << 1;
 
// Time to choose a direction.
 
static const TimeValue kDecisionTime = 600 * 2;
 
class ChaseInteraction : public GameInteraction, public NotificationReceiver {
public:
    ChaseInteraction(const InteractionID, Neighborhood *, NotificationID, NotificationManager *);
    virtual ~ChaseInteraction() {}
 
    virtual void handleInput(const Input &, const Hotspot *);
 
protected:
 
    virtual void openInteraction();
    virtual void initInteraction() {}
    virtual void closeInteraction();
 
    virtual void receiveNotification(Notification *, const NotificationFlags);
 
    virtual void setUpBranch() {}
    virtual void branchLeft() {}
    virtual void branchRight() {}
    virtual void dontBranch() {}
 
    virtual void showControlsHint();
    virtual void hideControlsHint();
 
    Notification _chaseNotification;
 
    Notification *_neighborhoodNotification;
 
    Picture _steerPict;
 
private:
 
    bool _directionNeeded;
    TurnDirection _turnDirection;
};
 
} // End of namespace Pegasus
 
#endif