Files
FtcRobotController/TeamCode/trajectorysequence/TrajectorySequenceBuilder.java
2023-08-28 21:16:35 -07:00

711 lines
27 KiB
Java

package org.firstinspires.ftc.teamcode.trajectorysequence;
import com.acmerobotics.roadrunner.geometry.Pose2d;
import com.acmerobotics.roadrunner.geometry.Vector2d;
import com.acmerobotics.roadrunner.path.PathContinuityViolationException;
import com.acmerobotics.roadrunner.profile.MotionProfile;
import com.acmerobotics.roadrunner.profile.MotionProfileGenerator;
import com.acmerobotics.roadrunner.profile.MotionState;
import com.acmerobotics.roadrunner.trajectory.DisplacementMarker;
import com.acmerobotics.roadrunner.trajectory.DisplacementProducer;
import com.acmerobotics.roadrunner.trajectory.MarkerCallback;
import com.acmerobotics.roadrunner.trajectory.SpatialMarker;
import com.acmerobotics.roadrunner.trajectory.TemporalMarker;
import com.acmerobotics.roadrunner.trajectory.TimeProducer;
import com.acmerobotics.roadrunner.trajectory.Trajectory;
import com.acmerobotics.roadrunner.trajectory.TrajectoryBuilder;
import com.acmerobotics.roadrunner.trajectory.TrajectoryMarker;
import com.acmerobotics.roadrunner.trajectory.constraints.TrajectoryAccelerationConstraint;
import com.acmerobotics.roadrunner.trajectory.constraints.TrajectoryVelocityConstraint;
import com.acmerobotics.roadrunner.util.Angle;
import org.firstinspires.ftc.teamcode.trajectorysequence.sequencesegment.SequenceSegment;
import org.firstinspires.ftc.teamcode.trajectorysequence.sequencesegment.TrajectorySegment;
import org.firstinspires.ftc.teamcode.trajectorysequence.sequencesegment.TurnSegment;
import org.firstinspires.ftc.teamcode.trajectorysequence.sequencesegment.WaitSegment;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class TrajectorySequenceBuilder {
private final double resolution = 0.25;
private final TrajectoryVelocityConstraint baseVelConstraint;
private final TrajectoryAccelerationConstraint baseAccelConstraint;
private TrajectoryVelocityConstraint currentVelConstraint;
private TrajectoryAccelerationConstraint currentAccelConstraint;
private final double baseTurnConstraintMaxAngVel;
private final double baseTurnConstraintMaxAngAccel;
private double currentTurnConstraintMaxAngVel;
private double currentTurnConstraintMaxAngAccel;
private final List<SequenceSegment> sequenceSegments;
private final List<TemporalMarker> temporalMarkers;
private final List<DisplacementMarker> displacementMarkers;
private final List<SpatialMarker> spatialMarkers;
private Pose2d lastPose;
private double tangentOffset;
private boolean setAbsoluteTangent;
private double absoluteTangent;
private TrajectoryBuilder currentTrajectoryBuilder;
private double currentDuration;
private double currentDisplacement;
private double lastDurationTraj;
private double lastDisplacementTraj;
public TrajectorySequenceBuilder(
Pose2d startPose,
Double startTangent,
TrajectoryVelocityConstraint baseVelConstraint,
TrajectoryAccelerationConstraint baseAccelConstraint,
double baseTurnConstraintMaxAngVel,
double baseTurnConstraintMaxAngAccel
) {
this.baseVelConstraint = baseVelConstraint;
this.baseAccelConstraint = baseAccelConstraint;
this.currentVelConstraint = baseVelConstraint;
this.currentAccelConstraint = baseAccelConstraint;
this.baseTurnConstraintMaxAngVel = baseTurnConstraintMaxAngVel;
this.baseTurnConstraintMaxAngAccel = baseTurnConstraintMaxAngAccel;
this.currentTurnConstraintMaxAngVel = baseTurnConstraintMaxAngVel;
this.currentTurnConstraintMaxAngAccel = baseTurnConstraintMaxAngAccel;
sequenceSegments = new ArrayList<>();
temporalMarkers = new ArrayList<>();
displacementMarkers = new ArrayList<>();
spatialMarkers = new ArrayList<>();
lastPose = startPose;
tangentOffset = 0.0;
setAbsoluteTangent = (startTangent != null);
absoluteTangent = startTangent != null ? startTangent : 0.0;
currentTrajectoryBuilder = null;
currentDuration = 0.0;
currentDisplacement = 0.0;
lastDurationTraj = 0.0;
lastDisplacementTraj = 0.0;
}
public TrajectorySequenceBuilder(
Pose2d startPose,
TrajectoryVelocityConstraint baseVelConstraint,
TrajectoryAccelerationConstraint baseAccelConstraint,
double baseTurnConstraintMaxAngVel,
double baseTurnConstraintMaxAngAccel
) {
this(
startPose, null,
baseVelConstraint, baseAccelConstraint,
baseTurnConstraintMaxAngVel, baseTurnConstraintMaxAngAccel
);
}
public TrajectorySequenceBuilder lineTo(Vector2d endPosition) {
return addPath(() -> currentTrajectoryBuilder.lineTo(endPosition, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder lineTo(
Vector2d endPosition,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.lineTo(endPosition, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder lineToConstantHeading(Vector2d endPosition) {
return addPath(() -> currentTrajectoryBuilder.lineToConstantHeading(endPosition, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder lineToConstantHeading(
Vector2d endPosition,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.lineToConstantHeading(endPosition, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder lineToLinearHeading(Pose2d endPose) {
return addPath(() -> currentTrajectoryBuilder.lineToLinearHeading(endPose, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder lineToLinearHeading(
Pose2d endPose,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.lineToLinearHeading(endPose, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder lineToSplineHeading(Pose2d endPose) {
return addPath(() -> currentTrajectoryBuilder.lineToSplineHeading(endPose, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder lineToSplineHeading(
Pose2d endPose,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.lineToSplineHeading(endPose, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder strafeTo(Vector2d endPosition) {
return addPath(() -> currentTrajectoryBuilder.strafeTo(endPosition, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder strafeTo(
Vector2d endPosition,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.strafeTo(endPosition, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder forward(double distance) {
return addPath(() -> currentTrajectoryBuilder.forward(distance, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder forward(
double distance,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.forward(distance, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder back(double distance) {
return addPath(() -> currentTrajectoryBuilder.back(distance, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder back(
double distance,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.back(distance, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder strafeLeft(double distance) {
return addPath(() -> currentTrajectoryBuilder.strafeLeft(distance, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder strafeLeft(
double distance,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.strafeLeft(distance, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder strafeRight(double distance) {
return addPath(() -> currentTrajectoryBuilder.strafeRight(distance, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder strafeRight(
double distance,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.strafeRight(distance, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder splineTo(Vector2d endPosition, double endHeading) {
return addPath(() -> currentTrajectoryBuilder.splineTo(endPosition, endHeading, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder splineTo(
Vector2d endPosition,
double endHeading,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.splineTo(endPosition, endHeading, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder splineToConstantHeading(Vector2d endPosition, double endHeading) {
return addPath(() -> currentTrajectoryBuilder.splineToConstantHeading(endPosition, endHeading, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder splineToConstantHeading(
Vector2d endPosition,
double endHeading,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.splineToConstantHeading(endPosition, endHeading, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder splineToLinearHeading(Pose2d endPose, double endHeading) {
return addPath(() -> currentTrajectoryBuilder.splineToLinearHeading(endPose, endHeading, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder splineToLinearHeading(
Pose2d endPose,
double endHeading,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.splineToLinearHeading(endPose, endHeading, velConstraint, accelConstraint));
}
public TrajectorySequenceBuilder splineToSplineHeading(Pose2d endPose, double endHeading) {
return addPath(() -> currentTrajectoryBuilder.splineToSplineHeading(endPose, endHeading, currentVelConstraint, currentAccelConstraint));
}
public TrajectorySequenceBuilder splineToSplineHeading(
Pose2d endPose,
double endHeading,
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
return addPath(() -> currentTrajectoryBuilder.splineToSplineHeading(endPose, endHeading, velConstraint, accelConstraint));
}
private TrajectorySequenceBuilder addPath(AddPathCallback callback) {
if (currentTrajectoryBuilder == null) newPath();
try {
callback.run();
} catch (PathContinuityViolationException e) {
newPath();
callback.run();
}
Trajectory builtTraj = currentTrajectoryBuilder.build();
double durationDifference = builtTraj.duration() - lastDurationTraj;
double displacementDifference = builtTraj.getPath().length() - lastDisplacementTraj;
lastPose = builtTraj.end();
currentDuration += durationDifference;
currentDisplacement += displacementDifference;
lastDurationTraj = builtTraj.duration();
lastDisplacementTraj = builtTraj.getPath().length();
return this;
}
public TrajectorySequenceBuilder setTangent(double tangent) {
setAbsoluteTangent = true;
absoluteTangent = tangent;
pushPath();
return this;
}
private TrajectorySequenceBuilder setTangentOffset(double offset) {
setAbsoluteTangent = false;
this.tangentOffset = offset;
this.pushPath();
return this;
}
public TrajectorySequenceBuilder setReversed(boolean reversed) {
return reversed ? this.setTangentOffset(Math.toRadians(180.0)) : this.setTangentOffset(0.0);
}
public TrajectorySequenceBuilder setConstraints(
TrajectoryVelocityConstraint velConstraint,
TrajectoryAccelerationConstraint accelConstraint
) {
this.currentVelConstraint = velConstraint;
this.currentAccelConstraint = accelConstraint;
return this;
}
public TrajectorySequenceBuilder resetConstraints() {
this.currentVelConstraint = this.baseVelConstraint;
this.currentAccelConstraint = this.baseAccelConstraint;
return this;
}
public TrajectorySequenceBuilder setVelConstraint(TrajectoryVelocityConstraint velConstraint) {
this.currentVelConstraint = velConstraint;
return this;
}
public TrajectorySequenceBuilder resetVelConstraint() {
this.currentVelConstraint = this.baseVelConstraint;
return this;
}
public TrajectorySequenceBuilder setAccelConstraint(TrajectoryAccelerationConstraint accelConstraint) {
this.currentAccelConstraint = accelConstraint;
return this;
}
public TrajectorySequenceBuilder resetAccelConstraint() {
this.currentAccelConstraint = this.baseAccelConstraint;
return this;
}
public TrajectorySequenceBuilder setTurnConstraint(double maxAngVel, double maxAngAccel) {
this.currentTurnConstraintMaxAngVel = maxAngVel;
this.currentTurnConstraintMaxAngAccel = maxAngAccel;
return this;
}
public TrajectorySequenceBuilder resetTurnConstraint() {
this.currentTurnConstraintMaxAngVel = baseTurnConstraintMaxAngVel;
this.currentTurnConstraintMaxAngAccel = baseTurnConstraintMaxAngAccel;
return this;
}
public TrajectorySequenceBuilder addTemporalMarker(MarkerCallback callback) {
return this.addTemporalMarker(currentDuration, callback);
}
public TrajectorySequenceBuilder UNSTABLE_addTemporalMarkerOffset(double offset, MarkerCallback callback) {
return this.addTemporalMarker(currentDuration + offset, callback);
}
public TrajectorySequenceBuilder addTemporalMarker(double time, MarkerCallback callback) {
return this.addTemporalMarker(0.0, time, callback);
}
public TrajectorySequenceBuilder addTemporalMarker(double scale, double offset, MarkerCallback callback) {
return this.addTemporalMarker(time -> scale * time + offset, callback);
}
public TrajectorySequenceBuilder addTemporalMarker(TimeProducer time, MarkerCallback callback) {
this.temporalMarkers.add(new TemporalMarker(time, callback));
return this;
}
public TrajectorySequenceBuilder addSpatialMarker(Vector2d point, MarkerCallback callback) {
this.spatialMarkers.add(new SpatialMarker(point, callback));
return this;
}
public TrajectorySequenceBuilder addDisplacementMarker(MarkerCallback callback) {
return this.addDisplacementMarker(currentDisplacement, callback);
}
public TrajectorySequenceBuilder UNSTABLE_addDisplacementMarkerOffset(double offset, MarkerCallback callback) {
return this.addDisplacementMarker(currentDisplacement + offset, callback);
}
public TrajectorySequenceBuilder addDisplacementMarker(double displacement, MarkerCallback callback) {
return this.addDisplacementMarker(0.0, displacement, callback);
}
public TrajectorySequenceBuilder addDisplacementMarker(double scale, double offset, MarkerCallback callback) {
return addDisplacementMarker((displacement -> scale * displacement + offset), callback);
}
public TrajectorySequenceBuilder addDisplacementMarker(DisplacementProducer displacement, MarkerCallback callback) {
displacementMarkers.add(new DisplacementMarker(displacement, callback));
return this;
}
public TrajectorySequenceBuilder turn(double angle) {
return turn(angle, currentTurnConstraintMaxAngVel, currentTurnConstraintMaxAngAccel);
}
public TrajectorySequenceBuilder turn(double angle, double maxAngVel, double maxAngAccel) {
pushPath();
MotionProfile turnProfile = MotionProfileGenerator.generateSimpleMotionProfile(
new MotionState(lastPose.getHeading(), 0.0, 0.0, 0.0),
new MotionState(lastPose.getHeading() + angle, 0.0, 0.0, 0.0),
maxAngVel,
maxAngAccel
);
sequenceSegments.add(new TurnSegment(lastPose, angle, turnProfile, Collections.emptyList()));
lastPose = new Pose2d(
lastPose.getX(), lastPose.getY(),
Angle.norm(lastPose.getHeading() + angle)
);
currentDuration += turnProfile.duration();
return this;
}
public TrajectorySequenceBuilder waitSeconds(double seconds) {
pushPath();
sequenceSegments.add(new WaitSegment(lastPose, seconds, Collections.emptyList()));
currentDuration += seconds;
return this;
}
public TrajectorySequenceBuilder addTrajectory(Trajectory trajectory) {
pushPath();
sequenceSegments.add(new TrajectorySegment(trajectory));
return this;
}
private void pushPath() {
if (currentTrajectoryBuilder != null) {
Trajectory builtTraj = currentTrajectoryBuilder.build();
sequenceSegments.add(new TrajectorySegment(builtTraj));
}
currentTrajectoryBuilder = null;
}
private void newPath() {
if (currentTrajectoryBuilder != null)
pushPath();
lastDurationTraj = 0.0;
lastDisplacementTraj = 0.0;
double tangent = setAbsoluteTangent ? absoluteTangent : Angle.norm(lastPose.getHeading() + tangentOffset);
currentTrajectoryBuilder = new TrajectoryBuilder(lastPose, tangent, currentVelConstraint, currentAccelConstraint, resolution);
}
public TrajectorySequence build() {
pushPath();
List<TrajectoryMarker> globalMarkers = convertMarkersToGlobal(
sequenceSegments,
temporalMarkers, displacementMarkers, spatialMarkers
);
return new TrajectorySequence(projectGlobalMarkersToLocalSegments(globalMarkers, sequenceSegments));
}
private List<TrajectoryMarker> convertMarkersToGlobal(
List<SequenceSegment> sequenceSegments,
List<TemporalMarker> temporalMarkers,
List<DisplacementMarker> displacementMarkers,
List<SpatialMarker> spatialMarkers
) {
ArrayList<TrajectoryMarker> trajectoryMarkers = new ArrayList<>();
// Convert temporal markers
for (TemporalMarker marker : temporalMarkers) {
trajectoryMarkers.add(
new TrajectoryMarker(marker.getProducer().produce(currentDuration), marker.getCallback())
);
}
// Convert displacement markers
for (DisplacementMarker marker : displacementMarkers) {
double time = displacementToTime(
sequenceSegments,
marker.getProducer().produce(currentDisplacement)
);
trajectoryMarkers.add(
new TrajectoryMarker(
time,
marker.getCallback()
)
);
}
// Convert spatial markers
for (SpatialMarker marker : spatialMarkers) {
trajectoryMarkers.add(
new TrajectoryMarker(
pointToTime(sequenceSegments, marker.getPoint()),
marker.getCallback()
)
);
}
return trajectoryMarkers;
}
private List<SequenceSegment> projectGlobalMarkersToLocalSegments(List<TrajectoryMarker> markers, List<SequenceSegment> sequenceSegments) {
if (sequenceSegments.isEmpty()) return Collections.emptyList();
markers.sort(Comparator.comparingDouble(TrajectoryMarker::getTime));
int segmentIndex = 0;
double currentTime = 0;
for (TrajectoryMarker marker : markers) {
SequenceSegment segment = null;
double markerTime = marker.getTime();
double segmentOffsetTime = 0;
while (segmentIndex < sequenceSegments.size()) {
SequenceSegment seg = sequenceSegments.get(segmentIndex);
if (currentTime + seg.getDuration() >= markerTime) {
segment = seg;
segmentOffsetTime = markerTime - currentTime;
break;
} else {
currentTime += seg.getDuration();
segmentIndex++;
}
}
if (segmentIndex >= sequenceSegments.size()) {
segment = sequenceSegments.get(sequenceSegments.size()-1);
segmentOffsetTime = segment.getDuration();
}
SequenceSegment newSegment = null;
if (segment instanceof WaitSegment) {
WaitSegment thisSegment = (WaitSegment) segment;
List<TrajectoryMarker> newMarkers = new ArrayList<>(thisSegment.getMarkers());
newMarkers.add(new TrajectoryMarker(segmentOffsetTime, marker.getCallback()));
newSegment = new WaitSegment(thisSegment.getStartPose(), thisSegment.getDuration(), newMarkers);
} else if (segment instanceof TurnSegment) {
TurnSegment thisSegment = (TurnSegment) segment;
List<TrajectoryMarker> newMarkers = new ArrayList<>(thisSegment.getMarkers());
newMarkers.add(new TrajectoryMarker(segmentOffsetTime, marker.getCallback()));
newSegment = new TurnSegment(thisSegment.getStartPose(), thisSegment.getTotalRotation(), thisSegment.getMotionProfile(), newMarkers);
} else if (segment instanceof TrajectorySegment) {
TrajectorySegment thisSegment = (TrajectorySegment) segment;
List<TrajectoryMarker> newMarkers = new ArrayList<>(thisSegment.getTrajectory().getMarkers());
newMarkers.add(new TrajectoryMarker(segmentOffsetTime, marker.getCallback()));
newSegment = new TrajectorySegment(new Trajectory(thisSegment.getTrajectory().getPath(), thisSegment.getTrajectory().getProfile(), newMarkers));
}
sequenceSegments.set(segmentIndex, newSegment);
}
return sequenceSegments;
}
// Taken from Road Runner's TrajectoryGenerator.displacementToTime() since it's private
// note: this assumes that the profile position is monotonic increasing
private Double motionProfileDisplacementToTime(MotionProfile profile, double s) {
double tLo = 0.0;
double tHi = profile.duration();
while (!(Math.abs(tLo - tHi) < 1e-6)) {
double tMid = 0.5 * (tLo + tHi);
if (profile.get(tMid).getX() > s) {
tHi = tMid;
} else {
tLo = tMid;
}
}
return 0.5 * (tLo + tHi);
}
private Double displacementToTime(List<SequenceSegment> sequenceSegments, double s) {
double currentTime = 0.0;
double currentDisplacement = 0.0;
for (SequenceSegment segment : sequenceSegments) {
if (segment instanceof TrajectorySegment) {
TrajectorySegment thisSegment = (TrajectorySegment) segment;
double segmentLength = thisSegment.getTrajectory().getPath().length();
if (currentDisplacement + segmentLength > s) {
double target = s - currentDisplacement;
double timeInSegment = motionProfileDisplacementToTime(
thisSegment.getTrajectory().getProfile(),
target
);
return currentTime + timeInSegment;
} else {
currentDisplacement += segmentLength;
currentTime += thisSegment.getTrajectory().duration();
}
} else {
currentTime += segment.getDuration();
}
}
return 0.0;
}
private Double pointToTime(List<SequenceSegment> sequenceSegments, Vector2d point) {
class ComparingPoints {
private final double distanceToPoint;
private final double totalDisplacement;
private final double thisPathDisplacement;
public ComparingPoints(double distanceToPoint, double totalDisplacement, double thisPathDisplacement) {
this.distanceToPoint = distanceToPoint;
this.totalDisplacement = totalDisplacement;
this.thisPathDisplacement = thisPathDisplacement;
}
}
List<ComparingPoints> projectedPoints = new ArrayList<>();
for (SequenceSegment segment : sequenceSegments) {
if (segment instanceof TrajectorySegment) {
TrajectorySegment thisSegment = (TrajectorySegment) segment;
double displacement = thisSegment.getTrajectory().getPath().project(point, 0.25);
Vector2d projectedPoint = thisSegment.getTrajectory().getPath().get(displacement).vec();
double distanceToPoint = point.minus(projectedPoint).norm();
double totalDisplacement = 0.0;
for (ComparingPoints comparingPoint : projectedPoints) {
totalDisplacement += comparingPoint.totalDisplacement;
}
totalDisplacement += displacement;
projectedPoints.add(new ComparingPoints(distanceToPoint, displacement, totalDisplacement));
}
}
ComparingPoints closestPoint = null;
for (ComparingPoints comparingPoint : projectedPoints) {
if (closestPoint == null) {
closestPoint = comparingPoint;
continue;
}
if (comparingPoint.distanceToPoint < closestPoint.distanceToPoint)
closestPoint = comparingPoint;
}
return displacementToTime(sequenceSegments, closestPoint.thisPathDisplacement);
}
private interface AddPathCallback {
void run();
}
}