diff --git a/.gitignore b/.gitignore
index c32fc32a5..a0f781753 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,4 @@
spine-cpp/Debug/*
spine-libgdx/bin/*
-spine-libgdx/libs/gdx-backend-lwjgl-natives.jar
-spine-libgdx/libs/gdx-backend-lwjgl.jar
-spine-libgdx/libs/gdx-natives.jar
-spine-libgdx/libs/gdx.jar
-target
\ No newline at end of file
+spine-libgdx/libs/*
+target
diff --git a/spine-libgdx/spine-libgdx.iml b/spine-libgdx/spine-libgdx.iml
new file mode 100644
index 000000000..0a96da4fc
--- /dev/null
+++ b/spine-libgdx/spine-libgdx.iml
@@ -0,0 +1,24 @@
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diff --git a/spine-libgdx/spine-libgdx.ipr b/spine-libgdx/spine-libgdx.ipr
new file mode 100644
index 000000000..8055423e4
--- /dev/null
+++ b/spine-libgdx/spine-libgdx.ipr
@@ -0,0 +1,169 @@
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diff --git a/spine-libgdx/spine-libgdx.iws b/spine-libgdx/spine-libgdx.iws
new file mode 100644
index 000000000..829444bc1
--- /dev/null
+++ b/spine-libgdx/spine-libgdx.iws
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+ GrailsGroovy
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+ jQuery
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+ 1.7
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+ spine-libgdx
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+ 1.7
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diff --git a/spine-libgdx/src/com/esotericsoftware/spine/AnimationState.java b/spine-libgdx/src/com/esotericsoftware/spine/AnimationState.java
new file mode 100644
index 000000000..3e706e500
--- /dev/null
+++ b/spine-libgdx/src/com/esotericsoftware/spine/AnimationState.java
@@ -0,0 +1,97 @@
+
+package com.esotericsoftware.spine;
+
+import com.esotericsoftware.spine.Animation;
+import com.esotericsoftware.spine.Skeleton;
+
+import com.badlogic.gdx.math.MathUtils;
+import com.badlogic.gdx.utils.ObjectMap;
+
+public class AnimationState {
+ Animation current;
+ float currentTime;
+ boolean currentLoop;
+ Animation previous;
+ float previousTime;
+ boolean previousLoop;
+ float mixTime, mixDuration;
+ Key tempKey = new Key();
+ ObjectMap animationToMixTime = new ObjectMap();
+
+ public void apply (Skeleton skeleton) {
+ if (current == null) return;
+ if (previous != null) {
+ previous.apply(skeleton, previousTime, previousLoop);
+ float alpha = MathUtils.clamp(mixTime / mixDuration, 0, 1);
+ current.mix(skeleton, currentTime, currentLoop, alpha);
+ if (alpha == 1) previous = null;
+ } else {
+ current.apply(skeleton, currentTime, currentLoop);
+ }
+ }
+
+ public void update (float delta) {
+ currentTime += delta;
+ previousTime += delta;
+ mixTime += delta;
+ }
+
+ public void setMixing (Animation from, Animation to, float duration) {
+ if (from == null) throw new IllegalArgumentException("from cannot be null.");
+ if (to == null) throw new IllegalArgumentException("to cannot be null.");
+ Key key = new Key();
+ key.a1 = from;
+ key.a2 = to;
+ animationToMixTime.put(key, duration);
+ }
+
+ public void setAnimation (Animation animation, boolean loop) {
+ setAnimation(animation, loop, 0);
+ }
+
+ public void setAnimation (Animation animation, boolean loop, float time) {
+ previous = null;
+ if (animation != null && current != null) {
+ tempKey.a1 = current;
+ tempKey.a2 = animation;
+ if (animationToMixTime.containsKey(tempKey)) {
+ mixDuration = animationToMixTime.get(tempKey);
+ mixTime = 0;
+ previous = current;
+ }
+ }
+ current = animation;
+ currentLoop = loop;
+ currentTime = time;
+ }
+
+ /** @return May be null. */
+ public Animation getAnimation () {
+ return current;
+ }
+
+ public float getTime () {
+ return currentTime;
+ }
+
+ static class Key {
+ Animation a1, a2;
+
+ public int hashCode () {
+ return 31 * (31 + a1.hashCode()) + a2.hashCode();
+ }
+
+ public boolean equals (Object obj) {
+ if (this == obj) return true;
+ if (obj == null) return false;
+ Key other = (Key)obj;
+ if (a1 == null) {
+ if (other.a1 != null) return false;
+ } else if (!a1.equals(other.a1)) return false;
+ if (a2 == null) {
+ if (other.a2 != null) return false;
+ } else if (!a2.equals(other.a2)) return false;
+ return true;
+ }
+ }
+}
diff --git a/spine-libgdx/test/com/esotericsoftware/spine/AnimationStatesTest.java b/spine-libgdx/test/com/esotericsoftware/spine/AnimationStatesTest.java
new file mode 100644
index 000000000..fcfbe67b3
--- /dev/null
+++ b/spine-libgdx/test/com/esotericsoftware/spine/AnimationStatesTest.java
@@ -0,0 +1,74 @@
+
+package com.esotericsoftware.spine;
+
+import com.badlogic.gdx.ApplicationAdapter;
+import com.badlogic.gdx.Gdx;
+import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
+import com.badlogic.gdx.backends.lwjgl.LwjglApplicationConfiguration;
+import com.badlogic.gdx.graphics.GL10;
+import com.badlogic.gdx.graphics.g2d.SpriteBatch;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas;
+import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+
+public class AnimationStatesTest extends ApplicationAdapter {
+ SpriteBatch batch;
+ ShapeRenderer renderer;
+
+ TextureAtlas atlas;
+ Skeleton skeleton;
+ Animation walkAnimation;
+ Animation jumpAnimation;
+ Bone root;
+ AnimationState state;
+
+ public void create () {
+ batch = new SpriteBatch();
+ renderer = new ShapeRenderer();
+
+ atlas = new TextureAtlas(Gdx.files.internal("spineboy.atlas"));
+ SkeletonJson json = new SkeletonJson(atlas);
+ SkeletonData skeletonData = json.readSkeletonData(Gdx.files.internal("spineboy-skeleton.json"));
+ walkAnimation = json.readAnimation(Gdx.files.internal("spineboy-walk.json"), skeletonData);
+ jumpAnimation = json.readAnimation(Gdx.files.internal("spineboy-jump.json"), skeletonData);
+
+ state = new AnimationState();
+ state.setMixing(walkAnimation, jumpAnimation, 0.4f);
+ state.setAnimation(walkAnimation, true);
+
+ skeleton = new Skeleton(skeletonData);
+
+ root = skeleton.getRootBone();
+ root.setX(250);
+ root.setY(20);
+
+ skeleton.updateWorldTransform();
+ }
+
+ public void render () {
+ state.update(Gdx.graphics.getDeltaTime() / 1); //Change the value of the integer to modify animation speed. Increase to slow Speed.
+
+ Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
+ batch.begin();
+
+ state.apply(skeleton);
+ if (state.getTime() > 1 && state.getAnimation() == walkAnimation) state.setAnimation(jumpAnimation, false);
+ skeleton.updateWorldTransform();
+ skeleton.draw(batch);
+
+ batch.end();
+ }
+
+ public void resize (int width, int height) {
+ batch.getProjectionMatrix().setToOrtho2D(0, 0, width, height);
+ renderer.setProjectionMatrix(batch.getProjectionMatrix());
+ }
+
+ public void dispose () {
+ atlas.dispose();
+ }
+
+ public static void main (String[] args) throws Exception {
+ LwjglApplicationConfiguration config = new LwjglApplicationConfiguration();
+ new LwjglApplication(new AnimationStatesTest());
+ }
+}