scummvm/engines/bladerunner/movement_track.cpp
2021-12-26 18:48:43 +01:00

140 lines
3.2 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 "bladerunner/movement_track.h"
#include "bladerunner/savefile.h"
namespace BladeRunner {
MovementTrack::MovementTrack() {
reset();
}
MovementTrack::~MovementTrack() {
reset();
}
void MovementTrack::reset() {
_currentIndex = -1;
_lastIndex = 0;
_hasNext = false;
_paused = false;
for (int i = 0; i < kSize; ++i) {
_entries[i].waypointId = -1;
_entries[i].delay = -1;
_entries[i].angle = -1;
_entries[i].run = false;
}
}
int MovementTrack::append(int waypointId, int32 delayMillis, bool run) {
return append(waypointId, delayMillis, -1, run);
}
int MovementTrack::append(int waypointId, int32 delayMillis, int angle, bool run) {
if (_lastIndex >= kSize) {
return 0;
}
_entries[_lastIndex].waypointId = waypointId;
_entries[_lastIndex].delay = delayMillis;
_entries[_lastIndex].angle = angle;
_entries[_lastIndex].run = run;
++_lastIndex;
_hasNext = true;
_currentIndex = 0;
return 1;
}
void MovementTrack::flush() {
reset();
}
void MovementTrack::repeat() {
_currentIndex = 0;
_hasNext = true;
}
void MovementTrack::pause() {
_paused = true;
}
void MovementTrack::unpause() {
_paused = false;
}
bool MovementTrack::isPaused() const {
return _paused;
}
bool MovementTrack::hasNext() const {
return _hasNext;
}
bool MovementTrack::next(int *waypointId, int32 *delayMillis, int *angle, bool *run) {
if (_currentIndex < _lastIndex && _hasNext) {
*waypointId = _entries[_currentIndex].waypointId;
*delayMillis = _entries[_currentIndex].delay;
*angle = _entries[_currentIndex].angle;
*run = _entries[_currentIndex++].run;
return true;
} else {
*waypointId = -1;
*delayMillis = -1;
*angle = -1;
*run = false;
_hasNext = false;
return false;
}
}
void MovementTrack::save(SaveFileWriteStream &f) {
f.writeInt(_currentIndex);
f.writeInt(_lastIndex);
f.writeBool(_hasNext);
f.writeBool(_paused);
for (int i = 0; i < kSize; ++i) {
Entry &e = _entries[i];
f.writeInt(e.waypointId);
f.writeInt(e.delay);
f.writeInt(e.angle);
f.writeBool(e.run);
}
}
void MovementTrack::load(SaveFileReadStream &f) {
_currentIndex = f.readInt();
_lastIndex = f.readInt();
_hasNext = f.readBool();
_paused = f.readBool();
for (int i = 0; i < kSize; ++i) {
Entry &e = _entries[i];
e.waypointId = f.readInt();
e.delay = f.readInt();
e.angle = f.readInt();
e.run = f.readBool();
}
}
} // End of namespace BladeRunner