diff options
Diffstat (limited to 'engines/pegasus/neighborhood/mars/robotship.cpp')
| -rw-r--r-- | engines/pegasus/neighborhood/mars/robotship.cpp | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/engines/pegasus/neighborhood/mars/robotship.cpp b/engines/pegasus/neighborhood/mars/robotship.cpp new file mode 100644 index 0000000000..a0ff749910 --- /dev/null +++ b/engines/pegasus/neighborhood/mars/robotship.cpp @@ -0,0 +1,270 @@ +/* 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/gamestate.h" +#include "pegasus/pegasus.h" +#include "pegasus/neighborhood/mars/hermite.h" +#include "pegasus/neighborhood/mars/mars.h" +#include "pegasus/neighborhood/mars/robotship.h" +#include "pegasus/neighborhood/mars/spacechase3d.h" +#include "pegasus/neighborhood/mars/spacejunk.h" + +namespace Pegasus { + +static const TimeScale kRovingScale = kTractorBeamScale; +static const TimeValue kRovingTime = kSixSeconds * kRovingScale; +static const TimeValue kRovingSlop = kThreeSeconds * kRovingScale; + +static const int kNumSpriteColumns = 15; +static const int kNumSpriteRows = 16; + +static const CoordType kInitialLocationLeft = kShuttleWindowLeft - 50; +static const CoordType kInitialLocationTop = kShuttleWindowTop - 50; +static const CoordType kInitialLocationWidth = kShuttleWindowWidth + 100; +static const CoordType kInitialLocationHeight = kShuttleWindowHeight + 100; + +static const CoordType kVelocityVectorLength = 100; +static const CoordType kVelocityVectorSlop = 50; + +static const CoordType kRovingLeft = kShuttleWindowLeft + 20; +static const CoordType kRovingTop = kShuttleWindowTop + 20; +static const CoordType kRovingWidth = kShuttleWindowMidH - kRovingLeft; +static const CoordType kRovingHeight = kShuttleWindowMidV - kRovingTop; + +RobotShip* g_robotShip = 0; + +void timeToDropJunkFunction(FunctionPtr *, void *robotShip) { + ((RobotShip *)robotShip)->timeToDropJunk(); +} + +RobotShip::RobotShip() : _spritesMovie(kNoDisplayElement) { + g_robotShip = this; + _shipRange = Common::Rect(kShuttleWindowLeft, kShuttleWindowTop, kShuttleWindowLeft + kShuttleWindowWidth, + kShuttleWindowTop + kShuttleWindowHeight); + setScale(kRovingScale); + _currentLocation.x = 0; + _currentLocation.y = 0; + _snaring = false; + _dropJunkFuse.setFunctionPtr(&timeToDropJunkFunction, (void *)this); +} + +RobotShip::~RobotShip() { + g_robotShip = 0; +} + +void RobotShip::initRobotShip() { + _spritesMovie.initFromMovieFile("Images/Mars/Ship.movie", true); + _spritesMovie.setDisplayOrder(kShuttleRobotShipOrder); + _spritesMovie.moveElementTo(kPlanetStartLeft, kPlanetStartTop); + _spritesMovie.startDisplaying(); + _spritesMovie.show(); + + Common::Rect r; + _spritesMovie.getBounds(r); + _shipWidth = r.width(); + _shipHeight = r.height(); + _dead = false; +} + +void RobotShip::cleanUpRobotShip() { + _dropJunkFuse.stopFuse(); + _spritesMovie.stopDisplaying(); + _spritesMovie.releaseMovie(); +} + +void RobotShip::startMoving() { + if (((PegasusEngine *)g_engine)->getRandomBit()) { + _p4.x = kInitialLocationLeft + ((PegasusEngine *)g_engine)->getRandomNumber(kInitialLocationWidth - 1); + if (((PegasusEngine *)g_engine)->getRandomBit()) + _p4.y = kInitialLocationTop; + else + _p4.y = kInitialLocationTop + kInitialLocationHeight; + } else { + _p4.y = kInitialLocationTop + ((PegasusEngine *)g_engine)->getRandomNumber(kInitialLocationHeight - 1); + if (((PegasusEngine *)g_engine)->getRandomBit()) + _p4.x = kInitialLocationLeft; + else + _p4.x = kInitialLocationLeft + kInitialLocationWidth; + } + + makeVelocityVector(_p4.x, _p4.y, kShuttleWindowLeft + kShuttleWindowWidth / 2, + kShuttleWindowTop + kShuttleWindowHeight / 2, _r4); + newDestination(); + setUpNextDropTime(); +} + +void RobotShip::killRobotShip() { + cleanUpRobotShip(); + _dead = true; +} + +void RobotShip::setUpNextDropTime() { + if (!isSnared()) { + _dropJunkFuse.primeFuse(kJunkDropBaseTime + ((PegasusEngine *)g_engine)->getRandomNumber(kJunkDropSlopTime)); + _dropJunkFuse.lightFuse(); + } +} + +void RobotShip::timeToDropJunk() { + if (g_spaceJunk) { + CoordType x, y; + _spritesMovie.getCenter(x, y); + g_spaceJunk->launchJunk(((PegasusEngine *)g_engine)->getRandomNumber(24), x, y); + } +} + +void RobotShip::newDestination() { + _p1 = _p4; + _r1 = _r4; + + _p4.x = kRovingLeft + ((PegasusEngine *)g_engine)->getRandomNumber(kRovingWidth - 1); + _p4.y = kRovingTop + ((PegasusEngine *)g_engine)->getRandomNumber(kRovingHeight - 1); + + if (((PegasusEngine *)g_engine)->getRandomNumber(7) < 6) { + if (!sameSign(_p4.x - kShuttleWindowMidH, kShuttleWindowMidH - _p1.x)) { + if (sign(_p4.x - kShuttleWindowMidH) > 0) + _p4.x -= kRovingWidth; + else + _p4.x += kRovingWidth; + } + } + + if (((PegasusEngine *)g_engine)->getRandomNumber(7) < 6) { + if (!sameSign(_p4.y - kShuttleWindowMidV, kShuttleWindowMidV - _p1.y)) { + if (sign(_p4.y - kShuttleWindowMidV) > 0) + _p4.y -= kRovingHeight; + else + _p4.y += kRovingHeight; + } + } + + makeVelocityVector(_p4.x, _p4.y, kShuttleWindowLeft + kShuttleWindowWidth / 2, + kShuttleWindowTop + kShuttleWindowHeight / 2, _r4); + stop(); + _duration = kRovingTime + ((PegasusEngine *)g_engine)->getRandomNumber(kRovingSlop - 1); + setSegment(0, _duration); + setTime(0); + start(); +} + +void RobotShip::moveRobotTo(CoordType x, CoordType y) { + _currentLocation.x = x; + _currentLocation.y = y; + + if (_spritesMovie.isMovieValid()) { + _spritesMovie.moveElementTo(x - (_shipWidth >> 1), y - (_shipHeight >> 1)); + + if (x < _shipRange.left) + x = 0; + else if (x > _shipRange.right - 1) + x = _shipRange.width() - 1; + else + x -= _shipRange.left; + + if (y < _shipRange.top) + y = 0; + else if (y > _shipRange.bottom - 1) + y = _shipRange.height() - 1; + else + y -= _shipRange.top; + + x = kNumSpriteColumns * x / _shipRange.width(); + y = kNumSpriteRows * y / _shipRange.height(); + + _spritesMovie.setTime(40 * (x + y * kNumSpriteColumns)); + _spritesMovie.redrawMovieWorld(); + } +} + +bool RobotShip::pointInShuttle(Common::Point &pt) { + Common::Rect r; + _spritesMovie.getBounds(r); + + int dx = r.width() / 4; + int dy = r.height() / 6; + + r.left += dx; + r.right -= dx; + r.top += dy; + r.bottom -= dy; + + return r.contains(pt); +} + +void RobotShip::hitByEnergyBeam(Common::Point impactPoint) { + ((Mars *)g_neighborhood)->decreaseRobotShuttleEnergy(1, impactPoint); + setGlowing(true); + ((PegasusEngine *)g_engine)->delayShell(1, 3); + setGlowing(false); +} + +void RobotShip::hitByGravitonCannon(Common::Point impactPoint) { + GameState.setMarsHitRobotWithCannon(true); + ((Mars *)g_neighborhood)->decreaseRobotShuttleEnergy(6, impactPoint); +} + +void RobotShip::snareByTractorBeam() { + _dropJunkFuse.stopFuse(); + stop(); + + Common::Point currentV; + dHermite(_p1, _p4, _r1, _r4, _lastTime, _duration, currentV); + + _p1 = _currentLocation; + _r1 = currentV; + _p4.x = kShuttleWindowMidH; + _p4.y = kShuttleWindowMidV; + _r4.x = 0; + _r4.y = 0; + _duration = kTractorBeamTime; + _snaring = true; + setSegment(0, _duration); + setTime(0); + start(); +} + +void RobotShip::timeChanged(const TimeValue) { + Common::Point newLocation; + hermite(_p1, _p4, _r1, _r4, _lastTime, _duration, newLocation); + moveRobotTo(newLocation.x, newLocation.y); + + if (_lastTime == _duration) { + if (_snaring) + stop(); + else + newDestination(); + } +} + +void RobotShip::makeVelocityVector(CoordType x1, CoordType y1, CoordType x2, CoordType y2, Common::Point &vector) { + CoordType length = ((PegasusEngine *)g_engine)->getRandomNumber(kVelocityVectorSlop - 1) + kVelocityVectorLength; + vector.x = x2 - x1; + vector.y = y2 - y1; + float oldLength = sqrt((float)(vector.x * vector.x + vector.y * vector.y)); + vector.x = (int)(vector.x * length / oldLength); + vector.y = (int)(vector.y * length / oldLength); +} + +} // End of namespace Pegasus |