Пример #1
0
  private void initState() {

    int numNodes = state.getNodeMap().size();
    int numSlots = numNodes * slotsPerNode;

    this.legend = new Legend(null, null, 0);

    int latSides = (int) Math.ceil(Math.pow(numNodes, 1 / 3.0));
    log.info("Lattice of " + numNodes + " requires " + latSides + " per side");
    this.lattice = new Lattice<Lattice<Void>>(latSides);

    List<String> nodeNames = new ArrayList<String>();
    List<Lattice<Void>> nodeLatti = new ArrayList<Lattice<Void>>();
    for (GridNode node : state.getNodeMap().values()) {
      Lattice<Void> nodeLattice = new Lattice<Void>(nodeLatSides);

      List<String> slotNames = new ArrayList<String>();
      List<Void> slots = new ArrayList<Void>();
      for (int i = 0; i < slotsPerNode; i++) {
        slotNames.add("" + i);
        slots.add(null);
      }
      nodeLattice.addItems(slotNames, slots);

      nodeNames.add(node.getShortName());
      nodeLatti.add(nodeLattice);
      // log.warn("Adding lattice for node "+node.getShortName());
    }

    lattice.addItems(nodeNames, nodeLatti);

    // Initialize actors from the grid state
    for (GridNode node : state.getNodeMap().values()) {

      int s = 0;
      for (GridJob job : node.getSlots()) {
        if (job == null) continue;
        String slotName = s + "";
        JobActor jobActor = createJobActor(job);
        jobActor.pos = getLatticePos(node.getShortName(), slotName);
        log.info(
            "Starting job {} on slot: {}",
            job.getFullJobId(),
            node.getShortName() + "#" + slotName);
        addJobActor(job.getFullJobId(), jobActor);
        s++;
      }
    }
  }
Пример #2
0
/**
 * The SketchState is a background thread responsible for drawing things which are relatively static
 * to a buffer. It has its own animation loop which tracks the timeline of the visualization at
 * whatever rate the user selects. Because it is decoupled from the main animation loop, it has no
 * specific timing it has to meet, so it can be relatively slow and precise. All of its drawing is
 * done with pixel precision, using Java 2D instead of OpenGL.
 *
 * <p>Anything which needs to be animated smoothly (e.g. job tweening) is left up to the enclosing
 * sketch, and its main animation loop.
 *
 * @author <a href="mailto:[email protected]">Konrad Rokicki</a>
 */
public class CubicSketchState implements Runnable {

  private static final Logger log = LoggerFactory.getLogger(CubicSketchState.class);

  // Timing
  private static final float DURATION_JOB_SUB = 40.0f;
  private static final float DURATION_JOB_START = 20.0f;
  private static final float DURATION_JOB_END = 70.0f;
  private static final float DISTANCE_JOB_START = 50.0f;

  // Invariants
  private final float width;
  private final float height;
  private final int slotsPerNode = 8;

  // Sizing variables
  private float nodeSize = 40;
  private float nodePadding = 5;
  private float jobPadding = 2;
  private int nodeLatSides = (int) Math.ceil(Math.pow(slotsPerNode, 1 / 3.0));
  private float jobSize = (nodeSize - nodeLatSides * jobPadding) / nodeLatSides;

  private PApplet p;

  // Actors
  private Multimap<String, JobActor> jobActorMap =
      Multimaps.synchronizedMultimap(HashMultimap.<String, JobActor>create());

  // Overall state
  private Legend legend;
  private Timeline timeline;

  // State for playing
  private PlayState playState = PlayState.PAUSED;
  private GridState state;

  private double playSpeed = 10.0f;
  private long prevElapsed;
  private long totalElapsed = 0;
  private Date lastSliceRequestDate;
  private long nextStartingPosition = 0;

  // Should changes to actors be tweened? This is usually disabled during buffering, for example.
  private boolean tweenChanges = true;

  public CubicSketchState(PApplet p, Timeline timeline, float width, float height) {
    this.p = p;
    this.width = width;
    this.height = height;
    this.timeline = timeline;
  }

  @Override
  public void run() {

    while (true) {

      switch (playState) {
        case BUFFERING:
          bufferToNextPosition();
          break;

        case PLAYING:
          Date currDate = new Date();
          long elapsed = (int) ((currDate.getTime() - lastSliceRequestDate.getTime()) * playSpeed);
          this.lastSliceRequestDate = currDate;

          // Check if we've been truncated, and move forward if necessary
          if (totalElapsed < timeline.getFirstOffset()) {
            log.info(
                "Elapsed time ({}) occurs before the current timeline ({})",
                totalElapsed,
                timeline.getFirstOffset());

            long position = elapsed;
            boolean noMatch = true;
            while (noMatch) {
              if (position != timeline.getFirstOffset()) {
                position = timeline.getFirstOffset();
                try {
                  Thread.sleep(500);
                } catch (InterruptedException e) {
                  // Ignore
                }
              } else {
                noMatch = false;
              }
            }
            log.info("Will buffer to new position: {}", position);
            bufferAtPosition(position);
            break;
          }

          // Update actors and build a usage map
          Map<String, Integer> slotsUsedByUser = new HashMap<String, Integer>();
          Iterator<? extends Actor> i = getJobActors().values().iterator();
          while (i.hasNext()) {
            Actor actor = i.next();
            if (actor instanceof JobActor) {
              JobActor jobActor = (JobActor) actor;
              if (jobActor.defunct) {
                removeJobActor(jobActor.name, jobActor);
              } else {
                int slots = 1;
                if (jobActor.queued) {
                  // If a job is queued then it is represented by a single sprite, so we need the
                  // actual number of slots
                  GridJob job = state.getJobByFullId(jobActor.name);
                  if (job != null) {
                    slots = job.getSlots();
                  }
                }

                if (jobActor.getName().contains(":")) {
                  // Parse a jobId like this: 1275988.2828-4000:1
                  try {
                    Pattern p = Pattern.compile("(\\d+)\\.(\\d+)-(\\d+):(\\d+)");
                    Matcher m = p.matcher(jobActor.getName());
                    if (m.matches()) {
                      int start = Integer.parseInt(m.group(2));
                      int end = Integer.parseInt(m.group(3));
                      int interval = Integer.parseInt(m.group(4));
                      slots = (end - start) / interval;
                    }
                  } catch (Exception e) {
                    log.error("Error parsing jobId: " + jobActor.getName(), e);
                  }
                } else if (jobActor.getName().contains(",")) {
                  // Parse a jobId like this: 2968157.205,211
                  try {
                    Pattern p = Pattern.compile("(\\d+)\\.(\\d+),(\\d+)");
                    Matcher m = p.matcher(jobActor.getName());
                    if (m.matches()) {
                      int first = Integer.parseInt(m.group(2));
                      int second = Integer.parseInt(m.group(3));
                      // There are two jobs listed here, so we require twice the number of slots
                      slots *= 2;
                    }
                  } catch (Exception e) {
                    log.error("Error parsing jobId: " + jobActor.getName(), e);
                  }
                }

                String user = jobActor.getUsername();
                if (!slotsUsedByUser.containsKey(user)) {
                  slotsUsedByUser.put(user, 0);
                }
                if (!jobActor.queued) {
                  slotsUsedByUser.put(user, slotsUsedByUser.get(user) + slots);
                }
              }
            }
          }

          legend.retain(slotsUsedByUser);

          updateState(elapsed);

          break;

        case READY:
          break;

        case PAUSED:
          break;

        case END:
          return;

        default:
          log.error("Invalid play state: " + playState);
          break;
      }

      try {
        Thread.sleep(50);
      } catch (InterruptedException e) {
        // Ignore
      }
    }
  }

  private void bufferToNextPosition() {

    log.info("Buffering to next position: {}", nextStartingPosition);

    int i = 0;
    Snapshot reqSnapshot = null;
    Snapshot prevSnapshot = null;
    for (Snapshot snapshot : timeline.getSnapshots()) {
      long offset = timeline.getOffset(snapshot.getSamplingTime());

      log.debug("Snapshot {} has offset {}", i, offset);

      if (offset >= nextStartingPosition) {
        if (prevSnapshot == null) {
          reqSnapshot = snapshot;
        } else {
          reqSnapshot = prevSnapshot;
        }
        break;
      }
      prevSnapshot = snapshot;
      i++;
    }

    if (reqSnapshot == null) {
      reqSnapshot = prevSnapshot;
      if (reqSnapshot == null) {
        log.error("Could not find snapshot for offset {}", nextStartingPosition);
        setPlayState(PlayState.PAUSED);
        return;
      }
    }

    // Initialize the state at the closest possible snapshot
    log.info(
        "Init with snapshot with offset {}", timeline.getOffset(reqSnapshot.getSamplingTime()));

    this.state = new GridState(reqSnapshot, "runState");
    initState();

    // Apply all events between the closet snapshot and the desired starting position
    this.totalElapsed = timeline.getOffset((reqSnapshot.getSamplingTime())) + 1;
    // This must be set before calling updateState for the first time after changing the position
    // (i.e. totalElapsed)
    this.prevElapsed = totalElapsed;
    long elapsed = nextStartingPosition - totalElapsed;
    if (elapsed < 0) {
      log.warn(
          "Negative time elapsed. Normalizing to nextStartingPosition={}", nextStartingPosition);
      totalElapsed = nextStartingPosition;
      elapsed = nextStartingPosition;
    }

    log.info("Buffering elapsed: {}", elapsed);
    this.tweenChanges = false;
    updateState(elapsed);
    this.tweenChanges = true;

    // Get ready to start playing
    this.lastSliceRequestDate = new Date();
    if (totalElapsed != nextStartingPosition) {
      totalElapsed = nextStartingPosition;
    }

    setPlayState(PlayState.READY);
    log.info("Buffered at totalElapsed={}", totalElapsed);
  }

  public synchronized void bufferAtPosition(long position) {
    if (playState == PlayState.PAUSED) {
      setPlayState(PlayState.BUFFERING);
      this.nextStartingPosition = position;
    } else {
      log.error("Cannot transition from " + playState + " to BUFFERING");
    }
  }

  public synchronized void play() {
    if (playState == PlayState.PAUSED || playState == PlayState.READY) {
      log.info("Beginning playback at totalElapsed={}", totalElapsed);
      this.lastSliceRequestDate = new Date();
      setPlayState(PlayState.PLAYING);
    } else {
      log.error("Cannot transition from " + playState + " to PLAYING");
    }
  }

  public synchronized void pause() {
    if (playState == PlayState.PLAYING || playState == PlayState.PAUSED) {
      setPlayState(PlayState.PAUSED);
    } else {
      log.error("Cannot transition from " + playState + " to PAUSED");
    }
  }

  public synchronized void end() {
    setPlayState(PlayState.END);
  }

  private void setPlayState(PlayState playState) {
    log.info("Entering state: {}", playState);
    this.playState = playState;
  }

  public boolean isPaused() {
    return playState == PlayState.PAUSED;
  }

  public boolean isReady() {
    return playState == PlayState.READY;
  }

  public boolean isPlaying() {
    return playState == PlayState.PLAYING;
  }

  public boolean isBuffering() {
    return playState == PlayState.BUFFERING;
  }

  public boolean isEnded() {
    return playState == PlayState.END;
  }

  public double getPlaySpeed() {
    return playSpeed;
  }

  public void setPlaySpeed(double playSpeed) {
    this.playSpeed = playSpeed;
  }

  public long getPosition() {
    return totalElapsed;
  }

  /**
   * Transliterated from Python solution available here:
   * http://stackoverflow.com/questions/6463297/algorithm-to-fill-rectangle-with-small-squares
   */
  private int bestSquare(float w, float h, float n) {
    float hi = Math.max(w, h);
    float lo = 0;
    while (Math.abs(hi - lo) > 0.0001) {
      float mid = (lo + hi) / 2;
      float midval = (float) Math.floor(w / mid) * (float) Math.floor(h / mid);
      if (midval >= n) {
        lo = mid;
      } else if (midval < n) {
        hi = mid;
      }
    }
    return (int) Math.min(w / Math.floor(w / lo), h / Math.floor(h / lo));
  }

  public class Lattice<T> {

    int size;
    Map<String, PVector> locationMap = new HashMap<String, PVector>();
    Map<String, T> contentsMap = new HashMap<String, T>();

    public Lattice(int size) {
      this.size = size;
    }

    public void addItems(List<String> names, List<T> items) {
      if (!locationMap.isEmpty()) {
        throw new IllegalStateException("addItems can only be called once for any given Lattice");
      }
      Queue<String> nameQueue = new LinkedList<String>(names);
      Queue<T> itemQueue = new LinkedList<T>(items);
      for (int i = 0; i < size; i++) {
        for (int j = 0; j < size; j++) {
          for (int k = 0; k < size; k++) {
            if (nameQueue.isEmpty() || itemQueue.isEmpty()) return;
            String name = nameQueue.remove();
            T item = itemQueue.remove();
            locationMap.put(name, new PVector(i, j, k));
            contentsMap.put(name, item);
          }
        }
      }

      if (!nameQueue.isEmpty()) {
        log.warn(
            "Could not add all items to lattice of size "
                + size
                + ". Items remaining: "
                + nameQueue.size());
      }
    }

    public PVector getLocation(String name) {
      return locationMap.get(name);
    }

    public T getContents(String name) {
      return contentsMap.get(name);
    }
  }

  private Lattice<Lattice<Void>> lattice;

  private void initState() {

    int numNodes = state.getNodeMap().size();
    int numSlots = numNodes * slotsPerNode;

    this.legend = new Legend(null, null, 0);

    int latSides = (int) Math.ceil(Math.pow(numNodes, 1 / 3.0));
    log.info("Lattice of " + numNodes + " requires " + latSides + " per side");
    this.lattice = new Lattice<Lattice<Void>>(latSides);

    List<String> nodeNames = new ArrayList<String>();
    List<Lattice<Void>> nodeLatti = new ArrayList<Lattice<Void>>();
    for (GridNode node : state.getNodeMap().values()) {
      Lattice<Void> nodeLattice = new Lattice<Void>(nodeLatSides);

      List<String> slotNames = new ArrayList<String>();
      List<Void> slots = new ArrayList<Void>();
      for (int i = 0; i < slotsPerNode; i++) {
        slotNames.add("" + i);
        slots.add(null);
      }
      nodeLattice.addItems(slotNames, slots);

      nodeNames.add(node.getShortName());
      nodeLatti.add(nodeLattice);
      // log.warn("Adding lattice for node "+node.getShortName());
    }

    lattice.addItems(nodeNames, nodeLatti);

    // Initialize actors from the grid state
    for (GridNode node : state.getNodeMap().values()) {

      int s = 0;
      for (GridJob job : node.getSlots()) {
        if (job == null) continue;
        String slotName = s + "";
        JobActor jobActor = createJobActor(job);
        jobActor.pos = getLatticePos(node.getShortName(), slotName);
        log.info(
            "Starting job {} on slot: {}",
            job.getFullJobId(),
            node.getShortName() + "#" + slotName);
        addJobActor(job.getFullJobId(), jobActor);
        s++;
      }
    }
  }

  private void updateState(long elapsed) {
    // Update the job actors
    List<GridEvent> events = getNextSlice(elapsed);
    if (!events.isEmpty()) {
      log.debug("Applying {} events", events.size());
      for (GridEvent event : events) {
        applyEvent(event);
      }
    }
  }

  private List<GridEvent> getNextSlice(long elapsed) {

    List<GridEvent> slice = new ArrayList<GridEvent>();
    if (elapsed <= 0) return slice;

    this.totalElapsed += elapsed;

    log.trace("getNextSlice, prevElapsed={}, totalElapsed={}", prevElapsed, totalElapsed);

    if (prevElapsed >= totalElapsed) {
      log.warn(
          "No slice possible with (prevElapsed={}, totalElapsed={})", prevElapsed, totalElapsed);
      return slice;
    }

    long start = prevElapsed;
    long end = totalElapsed;

    SortedMap<Long, List<Event>> eventSlice = timeline.getEvents(start, end);

    if (!eventSlice.isEmpty()) {
      // We only move the start of the window up when we find an event. This done because the
      // database might
      // have gaps if the incoming events cannot be processed in real-time. In that case, we don't
      // want to
      // miss any events if they come late.
      this.prevElapsed = totalElapsed;

      log.trace("Timeline has {} offset buckets", timeline.getNumOffsets());
      log.info(
          "Requested slice where {}<=t<{} and got " + eventSlice.size() + " buckets", start, end);
    }

    if (!eventSlice.isEmpty()) {
      for (Long offset : eventSlice.keySet()) {
        log.trace("Got offset bucket {}", offset);
        if (offset >= totalElapsed) {
          log.warn(
              "Timeline returned grid events outside the requested frame: {}>{}",
              offset,
              totalElapsed);
          break;
        }
        List<Event> events = eventSlice.get(offset);
        synchronized (events) {
          if (events.isEmpty()) {
            log.trace("Got empty offset bucket for offset {}", offset);
          }
          for (Event event : events) {
            if (event instanceof GridEvent) {
              GridEvent gridEvent = (GridEvent) event;
              log.trace("Got grid event {}", gridEvent);
              slice.add(gridEvent);
            } else if (event instanceof SnapshotEvent) {
              SnapshotEvent gridEvent = (SnapshotEvent) event;
              log.trace("Got snapshot event {}", gridEvent);
            } else {
              log.trace("Got unrecognized event {}", event);
            }
          }
        }
      }
    }

    return slice;
  }

  private void applyEvent(GridEvent event) {

    String fullJobId = event.getJobId();
    GridJob job = state.getJobByFullId(fullJobId);

    // Update the run state
    state.applyEvent(event);

    // Update the actor state
    switch (event.getType()) {
      case SUB:
        if (job == null) {
          job = new GridJob(event.getSnapshotJob());
        }
        applySub(job);
        break;
      case START:
        if (job == null) {
          log.error("Cannot start null job");
        } else {
          applyStart(job);
        }
        break;
      case END:
        if (job == null) {
          log.error("Cannot end null job");
        } else {
          applyEnd(job, event.getOffset());
        }
        break;
      default:
        log.warn("Unrecognized event type: {}", event.getType());
        break;
    }
  }

  private void applySub(GridJob job) {

    // String fullJobId = job.getFullJobId();
    // Collection<JobActor> actors = jobActorMap.get(fullJobId);
    // if (actors!=null && !actors.isEmpty()) {
    // log.warn("Ignoring sub event for known job {}",fullJobId);
    // return;
    // }
    //
    // log.debug("Adding queued job {}",fullJobId);
  }

  private void applyStart(GridJob job) {

    String fullJobId = job.getFullJobId();
    Collection<JobActor> actors = jobActorMap.get(fullJobId);
    if (actors.isEmpty()) {
      JobActor jobActor = createJobActor(job);
      addJobActor(fullJobId, jobActor);
      actors = jobActorMap.get(fullJobId);
    }

    if (job.getNode() == null) {
      log.warn("No node for job being started: {}", fullJobId);
      return;
    }

    log.debug("Starting job {} on {}", fullJobId, job.getNode().getShortName());

    String nodeName = job.getNode().getShortName();
    if (actors.size() > 1) {
      log.warn("More than one actor for job being started: " + fullJobId);
    }

    JobActor jobActor = actors.iterator().next();

    int i = 0;
    GridJob[] nodeJobs = job.getNode().getSlots();
    for (int s = 0; s < nodeJobs.length; s++) {
      GridJob nodeJob = nodeJobs[s];
      if (nodeJob == null) continue;
      if (!nodeJob.getFullJobId().equals(fullJobId)) continue;

      if (i > 0) {
        jobActor = cloneJobActor(fullJobId);
      }

      PVector endPos = getLatticePos(nodeName, s + "");
      // TODO: random outside location in direction of vector from 0,0,0
      PVector startPos = new PVector(1000, 1000, 1000);
      jobActor.pos = startPos;

      if (tweenChanges) {
        // scale duration to the distance that needs to be traveled
        float distance = jobActor.pos.dist(endPos);
        float duration = (DURATION_JOB_START * distance / DISTANCE_JOB_START) * 0.6f;

        Tween tween =
            new Tween("start_job_" + fullJobId + "#" + i, getTweenDuration(duration))
                .addPVector(jobActor.pos, endPos)
                .call(jobActor, "jobStarted")
                .setEasing(Tween.SINE_OUT)
                .noAutoUpdate();

        jobActor.tweens.add(tween);
      } else {
        jobActor.pos.set(endPos);
      }

      i++;
    }
  }

  private void applyEnd(GridJob job, long endOffset) {

    String fullJobId = job.getFullJobId();
    Collection<JobActor> actors = jobActorMap.get(fullJobId);
    if (actors == null || actors.isEmpty()) {
      log.warn("Cannot end job that does not exist: {}", fullJobId);
      return;
    }

    log.debug("Finishing job {} on node {}", fullJobId, job.getNode().getShortName());

    int i = 0;
    for (JobActor jobActor : actors) {

      PVector endPos = jobActor.getPos().get();
      endPos.mult(10.0f);

      if (tweenChanges) {
        // scale duration to the distance that needs to be traveled
        float distance = jobActor.pos.dist(endPos);
        float duration = (DURATION_JOB_END * distance / DURATION_JOB_END) * 0.6f;

        Tween tween =
            new Tween("end_job_" + fullJobId + "#" + i, getTweenDuration(duration))
                .addPVector(jobActor.pos, endPos)
                .call(jobActor, "jobEnded")
                .setEasing(Tween.SINE_IN)
                .noAutoUpdate();
        jobActor.tweens.add(tween);
      } else {
        jobActor.jobEnded();
      }

      i++;
    }
  }

  private JobActor createJobActor(GridJob job) {
    JobActor jobActor = new JobActor(null, job.getOwner());
    jobActor.color = legend.getItemColor(job.getOwner());
    jobActor.name = job.getFullJobId();
    return jobActor;
  }

  private void addJobActor(String fullJobId, JobActor jobActor) {
    jobActorMap.put(fullJobId, jobActor);
  }

  private void removeJobActor(String fullJobId, JobActor jobActor) {
    jobActorMap.remove(fullJobId, jobActor);
  }

  private JobActor cloneJobActor(String fullJobId) {
    Collection<JobActor> actors = jobActorMap.get(fullJobId);
    if (actors == null || actors.isEmpty()) {
      log.error("Cannot expand actors for non-existing job: " + fullJobId);
      return null;
    }

    JobActor jobActor = actors.iterator().next(); // first actor
    GridJob job = state.getJobByFullId(fullJobId);

    if (job == null) {
      log.error("Cannot expand actors for unknown job: " + fullJobId);
      return null;
    }

    JobActor copy = jobActor.copy();
    copy.name += "#" + actors.size();
    jobActorMap.put(fullJobId, copy);
    return copy;
  }

  private PVector getLatticePos(String nodeName, String slotName) {

    PVector nodeLoc = lattice.getLocation(nodeName);
    Lattice<Void> slotLat = lattice.getContents(nodeName);

    if (slotLat == null) {
      log.warn("No slot lattice for node " + nodeName);
      return new PVector(0, 0, 0);
    }

    // Node position within the lattice, natural coordinates
    float nodeOffset = nodeSize + 2 * nodePadding;
    PVector nodePos = nodeLoc.get();
    nodePos.mult(nodeOffset);
    nodePos.add(nodePadding, nodePadding, nodePadding);

    PVector slotLoc = slotLat.getLocation(slotName);
    if (slotLoc == null) {
      log.warn("No slot location for slot " + slotName + " in node " + nodeName);
      return nodePos.get();
    }

    // TODO: cache these calculations

    // Slot position within the node, natural coordinates
    float slotOffset = jobSize + 2 * jobPadding;
    PVector slotPos = slotLoc.get();
    slotPos.mult(slotOffset);
    slotPos.add(jobPadding, jobPadding, jobPadding);

    // Combine node and slot position, natural coordinates
    PVector pos = slotPos.get();
    pos.add(nodePos);

    // Convert into central coordinate system
    float latticeWidth = lattice.size * nodeOffset;
    float t = latticeWidth / 2;
    pos.sub(t, t, t);

    return pos;
  }

  private float getTweenDuration(float durationJobSub) {
    if (playSpeed <= 1) return durationJobSub;
    return durationJobSub / (float) Math.log(playSpeed);
  }

  public class Actor {

    protected PVector pos;

    public Actor(PVector pos) {
      this.pos = pos;
    }

    public PVector getPos() {
      return pos;
    }

    public void setPos(PVector pos) {
      this.pos = pos;
    }
  }

  public class JobActor extends Actor {

    protected String name;
    protected String username;
    protected int color = Utils.color("ff0000");
    protected float opacity = 150;
    protected Set<Motion> tweens = new HashSet<Motion>();
    protected boolean queued = false;
    protected boolean defunct = false;

    JobActor(PVector pos, String username) {
      super(pos);
      this.username = username;
    }

    public void update() {
      if (isInMotion()) {
        Set<Motion> toRemove = new HashSet<Motion>();
        for (Motion m : tweens) {
          if (!m.isPlaying()) {
            if (m.getPosition() == 0) {
              m.play();
            } else {
              toRemove.add(m);
            }
          } else {
            m.update();
          }
        }
        for (Motion m : toRemove) {
          tweens.remove(m);
        }
      }
    }

    public boolean isInMotion() {
      return !tweens.isEmpty();
    }

    public void draw(PGraphics buf) {

      if (pos == null) {
        log.warn("Actor {} has no position", name);
        return;
      }
      buf.pushMatrix();
      buf.stroke(Utils.color("ffffff"), opacity);
      buf.strokeWeight(1);
      buf.fill(color, opacity);
      buf.translate(pos.x, pos.y, pos.z);
      buf.box(jobSize);
      buf.popMatrix();
    }

    public JobActor copy() {
      JobActor copy = new JobActor(pos, username);
      copy.name = name;
      copy.color = this.color;
      return copy;
    }

    public String getName() {
      return name;
    }

    public void setName(String name) {
      this.name = name;
    }

    public String getUsername() {
      return username;
    }

    public float getOpacity() {
      return opacity;
    }

    public void setOpacity(float opacity) {
      this.opacity = opacity;
    }

    public Set<Motion> getTweens() {
      return tweens;
    }

    public boolean isDefunct() {
      return defunct;
    }

    public void jobStarted() {}

    public void jobEnded() {
      defunct = true;
      color = Utils.color("000000");
      // opacity = 0; // just in case
    }
  }

  public Multimap<String, JobActor> getJobActors() {
    synchronized (jobActorMap) {
      return ImmutableMultimap.copyOf(jobActorMap);
    }
  }

  public void setTimeline(Timeline timeline) {
    this.timeline = timeline;
  }
}