scummvm/engines/pink/objects/actions/walk_action.cpp
2021-12-26 18:48:43 +01:00

93 lines
2.6 KiB
C++

/* 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 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/>.
*
*/
#include "pink/archive.h"
#include "pink/cel_decoder.h"
#include "pink/pink.h"
#include "pink/objects/actions/walk_action.h"
#include "pink/objects/actors/actor.h"
namespace Pink {
void WalkAction::deserialize(Archive &archive) {
ActionCEL::deserialize(archive);
uint32 calcFramePositions = archive.readDWORD();
_toCalcFramePositions = calcFramePositions;
}
void WalkAction::toConsole() const {
debugC(6, kPinkDebugLoadingObjects, "\tWalkAction: _name = %s, _fileName = %s, _calcFramePositions = %u",
_name.c_str(), _fileName.c_str(), _toCalcFramePositions);
}
void WalkAction::onStart() {
if (_toCalcFramePositions) {
_start = _mgr->getStartCoords().point;
_end = _mgr->getEndCoords().point;
if (!_horizontal) {
_end.y = getCoordinates().point.y;
_start.y = _end.y;
_frameCount = _decoder.getFrameCount();
}
else {
_frameCount = (uint)abs(3 * (_start.x - _end.x) / (int)_z);
if (!_frameCount)
_frameCount = 1;
}
setCenter(_start);
_curFrame = 0;
}
}
void WalkAction::update() {
if (_toCalcFramePositions) {
if (_curFrame < _frameCount)
_curFrame++;
const double k = _curFrame / (double) _frameCount;
Common::Point newCenter;
newCenter.x = (_end.x - _start.x) * k + _start.x;
if (_horizontal) {
newCenter.y = (_end.y - _start.y) * k + _start.y;
} else {
newCenter.y = getCoordinates().point.y;
}
if (_decoder.getCurFrame() < (int)_decoder.getFrameCount() - 1)
decodeNext();
else {
setFrame(0);
}
setCenter(newCenter);
if (_curFrame >= _frameCount - 1) {
_decoder.setEndOfTrack();
_actor->endAction();
}
} else {
if (_decoder.getCurFrame() < (int)_decoder.getFrameCount() - 1)
decodeNext();
else {
_decoder.setEndOfTrack();
_actor->endAction();
}
}
}
} // End of namespace Pink