private void readAnimation(String name, DataInput input, SkeletonData skeletonData) {
Array<Timeline> timelines = new Array();
float scale = this.scale;
float duration = 0;
try {
// Slot timelines.
for (int i = 0, n = input.readInt(true); i < n; i++) {
int slotIndex = input.readInt(true);
for (int ii = 0, nn = input.readInt(true); ii < nn; ii++) {
int timelineType = input.readByte();
int frameCount = input.readInt(true);
switch (timelineType) {
case TIMELINE_COLOR:
{
ColorTimeline timeline = new ColorTimeline(frameCount);
timeline.slotIndex = slotIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++) {
float time = input.readFloat();
Color.rgba8888ToColor(tempColor, input.readInt());
timeline.setFrame(
frameIndex, time, tempColor.r, tempColor.g, tempColor.b, tempColor.a);
if (frameIndex < frameCount - 1) readCurve(input, frameIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[frameCount * 5 - 5]);
break;
}
case TIMELINE_ATTACHMENT:
AttachmentTimeline timeline = new AttachmentTimeline(frameCount);
timeline.slotIndex = slotIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++)
timeline.setFrame(frameIndex, input.readFloat(), input.readString());
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[frameCount - 1]);
break;
}
}
}
// Bone timelines.
for (int i = 0, n = input.readInt(true); i < n; i++) {
int boneIndex = input.readInt(true);
for (int ii = 0, nn = input.readInt(true); ii < nn; ii++) {
int timelineType = input.readByte();
int frameCount = input.readInt(true);
switch (timelineType) {
case TIMELINE_ROTATE:
{
RotateTimeline timeline = new RotateTimeline(frameCount);
timeline.boneIndex = boneIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++) {
timeline.setFrame(frameIndex, input.readFloat(), input.readFloat());
if (frameIndex < frameCount - 1) readCurve(input, frameIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[frameCount * 2 - 2]);
break;
}
case TIMELINE_TRANSLATE:
case TIMELINE_SCALE:
TranslateTimeline timeline;
float timelineScale = 1;
if (timelineType == TIMELINE_SCALE) timeline = new ScaleTimeline(frameCount);
else {
timeline = new TranslateTimeline(frameCount);
timelineScale = scale;
}
timeline.boneIndex = boneIndex;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++) {
timeline.setFrame(
frameIndex,
input.readFloat(),
input.readFloat() * timelineScale,
input.readFloat() * timelineScale);
if (frameIndex < frameCount - 1) readCurve(input, frameIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[frameCount * 3 - 3]);
break;
}
}
}
// FFD timelines.
for (int i = 0, n = input.readInt(true); i < n; i++) {
Skin skin = skeletonData.getSkins().get(input.readInt(true) + 1);
for (int ii = 0, nn = input.readInt(true); ii < nn; ii++) {
int slotIndex = input.readInt(true);
for (int iii = 0, nnn = input.readInt(true); iii < nnn; iii++) {
Attachment attachment = skin.getAttachment(slotIndex, input.readString());
int frameCount = input.readInt(true);
FfdTimeline timeline = new FfdTimeline(frameCount);
timeline.slotIndex = slotIndex;
timeline.attachment = attachment;
for (int frameIndex = 0; frameIndex < frameCount; frameIndex++) {
float time = input.readFloat();
float[] vertices;
int vertexCount;
if (attachment instanceof MeshAttachment)
vertexCount = ((MeshAttachment) attachment).getVertices().length;
else vertexCount = ((SkinnedMeshAttachment) attachment).getWeights().length / 3 * 2;
int end = input.readInt(true);
if (end == 0) {
if (attachment instanceof MeshAttachment)
vertices = ((MeshAttachment) attachment).getVertices();
else vertices = new float[vertexCount];
} else {
vertices = new float[vertexCount];
int start = input.readInt(true);
end += start;
if (scale == 1) {
for (int v = start; v < end; v++) vertices[v] = input.readFloat();
} else {
for (int v = start; v < end; v++) vertices[v] = input.readFloat() * scale;
}
if (attachment instanceof MeshAttachment) {
float[] meshVertices = ((MeshAttachment) attachment).getVertices();
for (int v = 0, vn = vertices.length; v < vn; v++) vertices[v] += meshVertices[v];
}
}
timeline.setFrame(frameIndex, time, vertices);
if (frameIndex < frameCount - 1) readCurve(input, frameIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[frameCount - 1]);
}
}
}
// Draw order timeline.
int drawOrderCount = input.readInt(true);
if (drawOrderCount > 0) {
DrawOrderTimeline timeline = new DrawOrderTimeline(drawOrderCount);
int slotCount = skeletonData.slots.size;
for (int i = 0; i < drawOrderCount; i++) {
int offsetCount = input.readInt(true);
int[] drawOrder = new int[slotCount];
for (int ii = slotCount - 1; ii >= 0; ii--) drawOrder[ii] = -1;
int[] unchanged = new int[slotCount - offsetCount];
int originalIndex = 0, unchangedIndex = 0;
for (int ii = 0; ii < offsetCount; ii++) {
int slotIndex = input.readInt(true);
// Collect unchanged items.
while (originalIndex != slotIndex) unchanged[unchangedIndex++] = originalIndex++;
// Set changed items.
drawOrder[originalIndex + input.readInt(true)] = originalIndex++;
}
// Collect remaining unchanged items.
while (originalIndex < slotCount) unchanged[unchangedIndex++] = originalIndex++;
// Fill in unchanged items.
for (int ii = slotCount - 1; ii >= 0; ii--)
if (drawOrder[ii] == -1) drawOrder[ii] = unchanged[--unchangedIndex];
timeline.setFrame(i, input.readFloat(), drawOrder);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[drawOrderCount - 1]);
}
// Event timeline.
int eventCount = input.readInt(true);
if (eventCount > 0) {
EventTimeline timeline = new EventTimeline(eventCount);
for (int i = 0; i < eventCount; i++) {
float time = input.readFloat();
EventData eventData = skeletonData.events.get(input.readInt(true));
Event event = new Event(eventData);
event.intValue = input.readInt(false);
event.floatValue = input.readFloat();
event.stringValue = input.readBoolean() ? input.readString() : eventData.stringValue;
timeline.setFrame(i, time, event);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[eventCount - 1]);
}
} catch (IOException ex) {
throw new SerializationException("Error reading skeleton file.", ex);
}
timelines.shrink();
skeletonData.addAnimation(new Animation(name, timelines, duration));
}
private void applyRotateTimeline(
Timeline timeline,
Skeleton skeleton,
float time,
float alpha,
boolean setupPose,
float[] timelinesRotation,
int i,
boolean firstFrame) {
if (firstFrame) timelinesRotation[i] = 0;
if (alpha == 1) {
timeline.apply(skeleton, 0, time, null, 1, setupPose, false);
return;
}
RotateTimeline rotateTimeline = (RotateTimeline) timeline;
Bone bone = skeleton.bones.get(rotateTimeline.boneIndex);
float[] frames = rotateTimeline.frames;
if (time < frames[0]) { // Time is before first frame.
if (setupPose) bone.rotation = bone.data.rotation;
return;
}
float r2;
if (time >= frames[frames.length - ENTRIES]) // Time is after last frame.
r2 = bone.data.rotation + frames[frames.length + PREV_ROTATION];
else {
// Interpolate between the previous frame and the current frame.
int frame = Animation.binarySearch(frames, time, ENTRIES);
float prevRotation = frames[frame + PREV_ROTATION];
float frameTime = frames[frame];
float percent =
rotateTimeline.getCurvePercent(
(frame >> 1) - 1, 1 - (time - frameTime) / (frames[frame + PREV_TIME] - frameTime));
r2 = frames[frame + ROTATION] - prevRotation;
r2 -= (16384 - (int) (16384.499999999996 - r2 / 360)) * 360;
r2 = prevRotation + r2 * percent + bone.data.rotation;
r2 -= (16384 - (int) (16384.499999999996 - r2 / 360)) * 360;
}
// Mix between rotations using the direction of the shortest route on the first frame while
// detecting crosses.
float r1 = setupPose ? bone.data.rotation : bone.rotation;
float total, diff = r2 - r1;
if (diff == 0) total = timelinesRotation[i];
else {
diff -= (16384 - (int) (16384.499999999996 - diff / 360)) * 360;
float lastTotal, lastDiff;
if (firstFrame) {
lastTotal = 0;
lastDiff = diff;
} else {
lastTotal = timelinesRotation[i]; // Angle and direction of mix, including loops.
lastDiff = timelinesRotation[i + 1]; // Difference between bones.
}
boolean current = diff > 0, dir = lastTotal >= 0;
// Detect cross at 0 (not 180).
if (Math.signum(lastDiff) != Math.signum(diff) && Math.abs(lastDiff) <= 90) {
// A cross after a 360 rotation is a loop.
if (Math.abs(lastTotal) > 180) lastTotal += 360 * Math.signum(lastTotal);
dir = current;
}
total = diff + lastTotal - lastTotal % 360; // Store loops as part of lastTotal.
if (dir != current) total += 360 * Math.signum(lastTotal);
timelinesRotation[i] = total;
}
timelinesRotation[i + 1] = diff;
r1 += total * alpha;
bone.rotation = r1 - (16384 - (int) (16384.499999999996 - r1 / 360)) * 360;
}
private void readAnimation(String name, JsonValue map, SkeletonData skeletonData) {
Array<Timeline> timelines = new Array();
float duration = 0;
for (JsonValue boneMap = map.getChild("bones"); boneMap != null; boneMap = boneMap.next()) {
int boneIndex = skeletonData.findBoneIndex(boneMap.name());
if (boneIndex == -1) throw new SerializationException("Bone not found: " + boneMap.name());
for (JsonValue timelineMap = boneMap.child();
timelineMap != null;
timelineMap = timelineMap.next()) {
String timelineName = timelineMap.name();
if (timelineName.equals(TIMELINE_ROTATE)) {
RotateTimeline timeline = new RotateTimeline(timelineMap.size());
timeline.setBoneIndex(boneIndex);
int frameIndex = 0;
for (JsonValue valueMap = timelineMap.child();
valueMap != null;
valueMap = valueMap.next()) {
float time = valueMap.getFloat("time");
timeline.setFrame(frameIndex, time, valueMap.getFloat("angle"));
readCurve(timeline, frameIndex, valueMap);
frameIndex++;
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[timeline.getFrameCount() * 2 - 2]);
} else if (timelineName.equals(TIMELINE_TRANSLATE) || timelineName.equals(TIMELINE_SCALE)) {
TranslateTimeline timeline;
float timelineScale = 1;
if (timelineName.equals(TIMELINE_SCALE)) timeline = new ScaleTimeline(timelineMap.size());
else {
timeline = new TranslateTimeline(timelineMap.size());
timelineScale = scale;
}
timeline.setBoneIndex(boneIndex);
int frameIndex = 0;
for (JsonValue valueMap = timelineMap.child();
valueMap != null;
valueMap = valueMap.next()) {
float time = valueMap.getFloat("time");
float x = valueMap.getFloat("x", 0), y = valueMap.getFloat("y", 0);
timeline.setFrame(frameIndex, time, x * timelineScale, y * timelineScale);
readCurve(timeline, frameIndex, valueMap);
frameIndex++;
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[timeline.getFrameCount() * 3 - 3]);
} else
throw new RuntimeException(
"Invalid timeline type for a bone: " + timelineName + " (" + boneMap.name() + ")");
}
}
for (JsonValue slotMap = map.getChild("slots"); slotMap != null; slotMap = slotMap.next()) {
int slotIndex = skeletonData.findSlotIndex(slotMap.name());
for (JsonValue timelineMap = slotMap.child();
timelineMap != null;
timelineMap = timelineMap.next()) {
String timelineName = timelineMap.name();
if (timelineName.equals(TIMELINE_COLOR)) {
ColorTimeline timeline = new ColorTimeline(timelineMap.size());
timeline.setSlotIndex(slotIndex);
int frameIndex = 0;
for (JsonValue valueMap = timelineMap.child();
valueMap != null;
valueMap = valueMap.next()) {
float time = valueMap.getFloat("time");
Color color = Color.valueOf(valueMap.getString("color"));
timeline.setFrame(frameIndex, time, color.r, color.g, color.b, color.a);
readCurve(timeline, frameIndex, valueMap);
frameIndex++;
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[timeline.getFrameCount() * 5 - 5]);
} else if (timelineName.equals(TIMELINE_ATTACHMENT)) {
AttachmentTimeline timeline = new AttachmentTimeline(timelineMap.size());
timeline.setSlotIndex(slotIndex);
int frameIndex = 0;
for (JsonValue valueMap = timelineMap.child();
valueMap != null;
valueMap = valueMap.next()) {
float time = valueMap.getFloat("time");
timeline.setFrame(frameIndex++, time, valueMap.getString("name"));
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[timeline.getFrameCount() - 1]);
} else
throw new RuntimeException(
"Invalid timeline type for a slot: " + timelineName + " (" + slotMap.name() + ")");
}
}
timelines.shrink();
skeletonData.addAnimation(new Animation(name, timelines, duration));
}