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Diffstat (limited to 'engines/lastexpress/menu/trainline.cpp')
| -rw-r--r-- | engines/lastexpress/menu/trainline.cpp | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/engines/lastexpress/menu/trainline.cpp b/engines/lastexpress/menu/trainline.cpp new file mode 100644 index 0000000000..df08abf37b --- /dev/null +++ b/engines/lastexpress/menu/trainline.cpp @@ -0,0 +1,142 @@ +/* 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 "lastexpress/menu/trainline.h" + +#include "lastexpress/data/sequence.h" + +#include "lastexpress/game/scenes.h" + +#include "lastexpress/helpers.h" +#include "lastexpress/lastexpress.h" +#include "lastexpress/resource.h" + +namespace LastExpress { + +// Information about the cities on the train line +static const struct { + uint8 frame; + TimeValue time; +} _trainCities[31] = { + {0, kTimeCityParis}, + {9, kTimeCityEpernay}, + {11, kTimeCityChalons}, + {16, kTimeCityBarLeDuc}, + {21, kTimeCityNancy}, + {25, kTimeCityLuneville}, + {35, kTimeCityAvricourt}, + {37, kTimeCityDeutschAvricourt}, + {40, kTimeCityStrasbourg}, + {53, kTimeCityBadenOos}, + {56, kTimeCityKarlsruhe}, + {60, kTimeCityStuttgart}, + {63, kTimeCityGeislingen}, + {66, kTimeCityUlm}, + {68, kTimeCityAugsburg}, + {73, kTimeCityMunich}, + {84, kTimeCitySalzbourg}, + {89, kTimeCityAttnangPuchheim}, + {97, kTimeCityWels}, + {100, kTimeCityLinz}, + {104, kTimeCityAmstetten}, + {111, kTimeCityVienna}, + {120, kTimeCityPoszony}, + {124, kTimeCityGalanta}, + {132, kTimeCityBudapest}, + {148, kTimeCityBelgrade}, + /* Line 1 ends at 150 - line 2 begins at 0 */ + {157, kTimeCityNish}, + {165, kTimeCityTzaribrod}, + {174, kTimeCitySofia}, + {198, kTimeCityAdrianople}, + {210, kTimeCityConstantinople} +}; + +TrainLine::TrainLine(LastExpressEngine *engine) : _engine(engine), _frameLine1(NULL), _frameLine2(NULL) { + _frameLine1 = new SequenceFrame(loadSequence("line1.seq"), 0, true); + _frameLine2 = new SequenceFrame(loadSequence("line2.seq"), 0, true); +} + +TrainLine::~TrainLine() { + SAFE_DELETE(_frameLine1); + SAFE_DELETE(_frameLine2); + + // Zero passed pointers + _engine = NULL; +} + +void TrainLine::clear() { + getScenes()->removeFromQueue(_frameLine1); + getScenes()->removeFromQueue(_frameLine2); +} + +// Draw the train line at the time +// line1: 150 frames (=> Belgrade) +// line2: 61 frames (=> Constantinople) +void TrainLine::draw(uint32 time) { + assert(time >= kTimeCityParis && time <= kTimeCityConstantinople); + + // Check that sequences have been loaded + if (!_frameLine1 || !_frameLine2) + error("TrainLine::process: Line sequences have not been loaded correctly!"); + + // Clear existing frames + clear(); + + // Get the index of the last city the train has visited + uint index = 0; + for (uint i = 0; i < ARRAYSIZE(_trainCities); i++) + if ((uint32)_trainCities[i].time <= time) + index = i; + + uint16 frame; + if (time > (uint32)_trainCities[index].time) { + // Interpolate linearly to use a frame between the cities + uint8 diffFrames = _trainCities[index + 1].frame - _trainCities[index].frame; + uint diffTimeCities = (uint)(_trainCities[index + 1].time - _trainCities[index].time); + uint traveledTime = (time - (uint)_trainCities[index].time); + frame = (uint16)(_trainCities[index].frame + (traveledTime * diffFrames) / diffTimeCities); + } else { + // Exactly on the city + frame = _trainCities[index].frame; + } + + // Set frame, z-order and queue + if (frame < 150) { + _frameLine1->setFrame(frame); + + _frameLine1->getInfo()->location = 1; + getScenes()->addToQueue(_frameLine1); + } else { + // We passed Belgrade + _frameLine1->setFrame(149); + _frameLine2->setFrame(frame - 150); + + _frameLine1->getInfo()->location = 1; + _frameLine2->getInfo()->location = 1; + + getScenes()->addToQueue(_frameLine1); + getScenes()->addToQueue(_frameLine2); + } +} + +} // End of namespace LastExpress |