mirror of
https://github.com/libretro/scummvm.git
synced 2025-01-09 11:20:56 +00:00
105 lines
3.0 KiB
C++
Executable File
105 lines
3.0 KiB
C++
Executable File
/* 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) 1995-1997 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 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 "pegasus/movie.h"
|
|
#include "pegasus/pegasus.h"
|
|
#include "pegasus/neighborhood/mars/constants.h"
|
|
#include "pegasus/neighborhood/mars/hermite.h"
|
|
#include "pegasus/neighborhood/mars/planetmover.h"
|
|
#include "pegasus/neighborhood/mars/shuttleenergymeter.h"
|
|
|
|
namespace Pegasus {
|
|
|
|
static const TimeScale kRovingScale = kTractorBeamScale;
|
|
static const TimeValue kRovingTime = kTenSeconds * kRovingScale;
|
|
static const TimeValue kRovingSlop = kTwoSeconds * kRovingScale;
|
|
|
|
static const CoordType kMaxVelocity = 20;
|
|
|
|
PlanetMover::PlanetMover() {
|
|
setScale(kRovingScale);
|
|
_dropping = false;
|
|
_planetMovie = 0;
|
|
}
|
|
|
|
void PlanetMover::startMoving(Movie *planetMovie) {
|
|
_planetMovie = planetMovie;
|
|
_p4 = kPlanetStartTop;
|
|
_r4 = ((PegasusEngine *)g_engine)->getRandomNumber(kMaxVelocity - 1);
|
|
if (_r4 + _p4 < kPlanetStopTop)
|
|
_r4 = kPlanetStopTop - _p4;
|
|
newDestination();
|
|
}
|
|
|
|
void PlanetMover::stopMoving() {
|
|
stop();
|
|
}
|
|
|
|
void PlanetMover::dropPlanetOutOfSight() {
|
|
stop();
|
|
CoordType currentLoc = hermite(_p1, _p4, _r1, _r4, _lastTime, _duration);
|
|
CoordType currentV = dHermite(_p1, _p4, _r1, _r4, _lastTime, _duration);
|
|
_p1 = currentLoc;
|
|
_r1 = currentV;
|
|
_p4 = kPlanetStartTop;
|
|
_r4 = 0;
|
|
_duration = kTractorBeamTime - kTractorBeamScale;
|
|
_dropping = true;
|
|
setSegment(0, _duration);
|
|
setTime(0);
|
|
start();
|
|
}
|
|
|
|
void PlanetMover::newDestination() {
|
|
_p1 = _p4;
|
|
_r1 = _r4;
|
|
|
|
_p4 = kPlanetStopTop + ((PegasusEngine *)g_engine)->getRandomNumber(kPlanetStartTop - kPlanetStopTop - 1);
|
|
_r4 = ((PegasusEngine *)g_engine)->getRandomNumber(kMaxVelocity - 1);
|
|
|
|
if (_r4 + _p4 < kPlanetStopTop)
|
|
_r4 = kPlanetStopTop - _p4;
|
|
|
|
stop();
|
|
_duration = kRovingTime + ((PegasusEngine *)g_engine)->getRandomNumber(kRovingSlop - 1);
|
|
setSegment(0, _duration);
|
|
setTime(0);
|
|
start();
|
|
}
|
|
|
|
void PlanetMover::timeChanged(const TimeValue) {
|
|
if (_planetMovie) {
|
|
_planetMovie->moveElementTo(kPlanetStartLeft, hermite(_p1, _p4, _r1, _r4, _lastTime, _duration));
|
|
if (_lastTime == _duration) {
|
|
if (_dropping)
|
|
stop();
|
|
else
|
|
newDestination();
|
|
}
|
|
}
|
|
}
|
|
|
|
} // End of namespace Pegasus
|