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path: root/engines/bladerunner/movement_track.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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/

#include "bladerunner/movement_track.h"

namespace BladeRunner {

MovementTrack::MovementTrack()
{
	reset();
}

MovementTrack::~MovementTrack()
{
	reset();
}

void MovementTrack::reset()
{
	_currentIndex = -1;
	_lastIndex = -1;
	_hasNext = 0;
	_paused = 0;
	for (int i = 0; i < 100; i++)
	{
		_entries[i].waypointId = -1;
		_entries[i].delay = -1;
		_entries[i].angle = -1;
		_entries[i].running = 0;
	}
}

int MovementTrack::append(int waypointId, int delay, int running)
{
	return append(waypointId, delay, -1, running);
}

int MovementTrack::append(int waypointId, int delay, int angle, int running)
{
	if (_lastIndex > ARRAYSIZE(_entries))
		return 0;

	_entries[_lastIndex].waypointId = waypointId;
	_entries[_lastIndex].delay = delay;
	_entries[_lastIndex].angle = angle;
	_entries[_lastIndex].running = running;

	_lastIndex++;
	_hasNext = 1;
	_currentIndex = 0;
	return 1;
}

void MovementTrack::flush()
{
	reset();
}

void MovementTrack::repeat()
{
	_currentIndex = 0;
	_hasNext = 1;
}

int MovementTrack::pause()
{
	_paused = 1;
	return 1;
}

int MovementTrack::unpause()
{
	_paused = 0;
	return 1;
}

int MovementTrack::isPaused()
{
	return _paused;
}

int MovementTrack::hasNext()
{
	return _hasNext;
}

int MovementTrack::next(int *waypointId, int *delay, int *angle, int *running)
{
	if (_currentIndex < _lastIndex && this->_hasNext)
	{
		*waypointId = _entries[_currentIndex].waypointId;
		*delay = _entries[_currentIndex].delay;
		*angle = _entries[_currentIndex].angle;
		*running = _entries[_currentIndex++].running;
		return 1;
	}
	else
	{
		*waypointId = -1;
		*delay = -1;
		*angle = -1;
		*running = 0;
		_hasNext = 0;
		return 0;
	}
}

} // End of namespace BladeRunner