/*******************************************************************************
* Copyright (c) 2013, Esoteric Software
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
package com.esotericsoftware.spine;
import com.esotericsoftware.spine.Animation.AttachmentTimeline;
import com.esotericsoftware.spine.Animation.ColorTimeline;
import com.esotericsoftware.spine.Animation.CurveTimeline;
import com.esotericsoftware.spine.Animation.RotateTimeline;
import com.esotericsoftware.spine.Animation.ScaleTimeline;
import com.esotericsoftware.spine.Animation.Timeline;
import com.esotericsoftware.spine.Animation.TranslateTimeline;
import com.esotericsoftware.spine.attachments.AtlasAttachmentLoader;
import com.esotericsoftware.spine.attachments.Attachment;
import com.esotericsoftware.spine.attachments.AttachmentLoader;
import com.esotericsoftware.spine.attachments.AttachmentType;
import com.esotericsoftware.spine.attachments.RegionAttachment;
import com.esotericsoftware.spine.attachments.RegionSequenceAttachment;
import com.esotericsoftware.spine.attachments.RegionSequenceAttachment.Mode;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.utils.Array;
import com.badlogic.gdx.utils.DataInput;
import com.badlogic.gdx.utils.SerializationException;
import java.io.IOException;
public class SkeletonBinary {
static public final int TIMELINE_SCALE = 0;
static public final int TIMELINE_ROTATE = 1;
static public final int TIMELINE_TRANSLATE = 2;
static public final int TIMELINE_ATTACHMENT = 3;
static public final int TIMELINE_COLOR = 4;
static public final int CURVE_LINEAR = 0;
static public final int CURVE_STEPPED = 1;
static public final int CURVE_BEZIER = 2;
static private final Color tempColor = new Color();
private final AttachmentLoader attachmentLoader;
private float scale = 1;
public SkeletonBinary (TextureAtlas atlas) {
attachmentLoader = new AtlasAttachmentLoader(atlas);
}
public SkeletonBinary (AttachmentLoader attachmentLoader) {
this.attachmentLoader = attachmentLoader;
}
public float getScale () {
return scale;
}
/** Scales the bones, images, and animations as they are loaded. */
public void setScale (float scale) {
this.scale = scale;
}
public SkeletonData readSkeletonData (FileHandle file) {
if (file == null) throw new IllegalArgumentException("file cannot be null.");
SkeletonData skeletonData = new SkeletonData();
skeletonData.setName(file.nameWithoutExtension());
DataInput input = new DataInput(file.read(512));
try {
// Bones.
for (int i = 0, n = input.readInt(true); i < n; i++) {
String name = input.readString();
BoneData parent = null;
String parentName = input.readString();
if (parentName != null) {
parent = skeletonData.findBone(parentName);
if (parent == null) throw new SerializationException("Parent bone not found: " + parentName);
}
BoneData boneData = new BoneData(name, parent);
boneData.x = input.readFloat() * scale;
boneData.y = input.readFloat() * scale;
boneData.scaleX = input.readFloat();
boneData.scaleY = input.readFloat();
boneData.rotation = input.readFloat();
boneData.length = input.readFloat() * scale;
boneData.inheritScale = input.readByte() == 1;
boneData.inheritRotation = input.readByte() == 1;
skeletonData.addBone(boneData);
}
// Slots.
for (int i = 0, n = input.readInt(true); i < n; i++) {
String slotName = input.readString();
String boneName = input.readString();
BoneData boneData = skeletonData.findBone(boneName);
if (boneData == null) throw new SerializationException("Bone not found: " + boneName);
SlotData slotData = new SlotData(slotName, boneData);
Color.rgba8888ToColor(slotData.getColor(), input.readInt());
slotData.setAttachmentName(input.readString());
slotData.additiveBlending = input.readByte() == 1;
skeletonData.addSlot(slotData);
}
// Default skin.
Skin defaultSkin = readSkin(input, "default");
if (defaultSkin != null) {
skeletonData.setDefaultSkin(defaultSkin);
skeletonData.addSkin(defaultSkin);
}
// Skins.
for (int i = 0, n = input.readInt(true); i < n; i++)
skeletonData.addSkin(readSkin(input, input.readString()));
// Animations.
for (int i = 0, n = input.readInt(true); i < n; i++)
readAnimation(input.readString(), input, skeletonData);
} catch (IOException ex) {
throw new SerializationException("Error reading skeleton file.", ex);
} finally {
try {
input.close();
} catch (IOException ignored) {
}
}
skeletonData.bones.shrink();
skeletonData.slots.shrink();
skeletonData.skins.shrink();
return skeletonData;
}
private Skin readSkin (DataInput input, String skinName) throws IOException {
int slotCount = input.readInt(true);
if (slotCount == 0) return null;
Skin skin = new Skin(skinName);
for (int i = 0; i < slotCount; i++) {
int slotIndex = input.readInt(true);
int attachmentCount = input.readInt(true);
for (int ii = 0; ii < attachmentCount; ii++) {
String name = input.readString();
skin.addAttachment(slotIndex, name, readAttachment(input, skin, name));
}
}
return skin;
}
private Attachment readAttachment (DataInput input, Skin skin, String attachmentName) throws IOException {
String name = input.readString();
if (name == null) name = attachmentName;
AttachmentType type = AttachmentType.values()[input.readByte()];
Attachment attachment = attachmentLoader.newAttachment(skin, type, name);
if (attachment instanceof RegionSequenceAttachment) {
RegionSequenceAttachment regionSequenceAttachment = (RegionSequenceAttachment)attachment;
regionSequenceAttachment.setFrameTime(1 / input.readFloat());
regionSequenceAttachment.setMode(Mode.values()[input.readInt(true)]);
}
if (attachment instanceof RegionAttachment) {
RegionAttachment regionAttachment = (RegionAttachment)attachment;
regionAttachment.setX(input.readFloat() * scale);
regionAttachment.setY(input.readFloat() * scale);
regionAttachment.setScaleX(input.readFloat());
regionAttachment.setScaleY(input.readFloat());
regionAttachment.setRotation(input.readFloat());
regionAttachment.setWidth(input.readFloat() * scale);
regionAttachment.setHeight(input.readFloat() * scale);
regionAttachment.updateOffset();
}
return attachment;
}
private void readAnimation (String name, DataInput input, SkeletonData skeletonData) {
Array<Timeline> timelines = new Array();
float duration = 0;
try {
int boneCount = input.readInt(true);
for (int i = 0; i < boneCount; i++) {
String boneName = input.readString();
int boneIndex = skeletonData.findBoneIndex(boneName);
if (boneIndex == -1) throw new SerializationException("Bone not found: " + boneName);
int itemCount = input.readInt(true);
for (int ii = 0; ii < itemCount; ii++) {
int timelineType = input.readByte();
int keyCount = input.readInt(true);
switch (timelineType) {
case TIMELINE_ROTATE: {
RotateTimeline timeline = new RotateTimeline(keyCount);
timeline.setBoneIndex(boneIndex);
for (int keyframeIndex = 0; keyframeIndex < keyCount; keyframeIndex++) {
timeline.setFrame(keyframeIndex, input.readFloat(), input.readFloat());
if (keyframeIndex < keyCount - 1) readCurve(input, keyframeIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[keyCount * 2 - 2]);
break;
}
case TIMELINE_TRANSLATE:
case TIMELINE_SCALE:
TranslateTimeline timeline;
float timelineScale = 1;
if (timelineType == TIMELINE_SCALE)
timeline = new ScaleTimeline(keyCount);
else {
timeline = new TranslateTimeline(keyCount);
timelineScale = scale;
}
timeline.setBoneIndex(boneIndex);
for (int keyframeIndex = 0; keyframeIndex < keyCount; keyframeIndex++) {
timeline.setFrame(keyframeIndex, input.readFloat(), input.readFloat() * timelineScale, input.readFloat()
* timelineScale);
if (keyframeIndex < keyCount - 1) readCurve(input, keyframeIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[keyCount * 3 - 3]);
break;
default:
throw new RuntimeException("Invalid timeline type for a bone: " + timelineType + " (" + boneName + ")");
}
}
}
int slotCount = input.readInt(true);
for (int i = 0; i < slotCount; i++) {
String slotName = input.readString();
int slotIndex = skeletonData.findSlotIndex(slotName);
int itemCount = input.readInt(true);
for (int ii = 0; ii < itemCount; ii++) {
int timelineType = input.readByte();
int keyCount = input.readInt(true);
switch (timelineType) {
case TIMELINE_COLOR: {
ColorTimeline timeline = new ColorTimeline(keyCount);
timeline.setSlotIndex(slotIndex);
for (int keyframeIndex = 0; keyframeIndex < keyCount; keyframeIndex++) {
float time = input.readFloat();
Color.rgba8888ToColor(tempColor, input.readInt());
timeline.setFrame(keyframeIndex, time, tempColor.r, tempColor.g, tempColor.b, tempColor.a);
if (keyframeIndex < keyCount - 1) readCurve(input, keyframeIndex, timeline);
}
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[keyCount * 5 - 5]);
break;
}
case TIMELINE_ATTACHMENT:
AttachmentTimeline timeline = new AttachmentTimeline(keyCount);
timeline.setSlotIndex(slotIndex);
for (int keyframeIndex = 0; keyframeIndex < keyCount; keyframeIndex++)
timeline.setFrame(keyframeIndex, input.readFloat(), input.readString());
timelines.add(timeline);
duration = Math.max(duration, timeline.getFrames()[keyCount - 1]);
break;
default:
throw new RuntimeException("Invalid timeline type for a slot: " + timelineType + " (" + slotName + ")");
}
}
}
} catch (IOException ex) {
throw new SerializationException("Error reading skeleton file.", ex);
}
timelines.shrink();
skeletonData.addAnimation(new Animation(name, timelines, duration));
}
private void readCurve (DataInput input, int keyframeIndex, CurveTimeline timeline) throws IOException {
switch (input.readByte()) {
case CURVE_STEPPED:
timeline.setStepped(keyframeIndex);
break;
case CURVE_BEZIER:
timeline.setCurve(keyframeIndex, input.readFloat(), input.readFloat(), input.readFloat(), input.readFloat());
break;
}
}
}