/*******************************************************************************
 * 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.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.backends.lwjgl.LwjglApplication;
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 AnimationStateTest 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);

		// Define mixing between animations.
		AnimationStateData mixing = new AnimationStateData();
		mixing.setMix(walkAnimation, jumpAnimation, 0.4f);
		mixing.setMix(jumpAnimation, walkAnimation, 0.4f);

		state = new AnimationState(mixing);
		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() / 3);

		Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT);
		batch.begin();

		state.apply(skeleton);
		if (state.getAnimation() == walkAnimation) {
			// After one second, change the current animation. Mixing is done by AnimationState for you.
			if (state.getTime() > 2) state.setAnimation(jumpAnimation, false);
		} else {
			if (state.getTime() > 1) state.setAnimation(walkAnimation, true);
		}
		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 {
		new LwjglApplication(new AnimationStateTest());
	}
}