/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated May 1, 2019. Replaces all prior versions.
 *
 * Copyright (c) 2013-2019, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE LLC "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 ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS
 * INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) 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.GL20;
import com.badlogic.gdx.graphics.OrthographicCamera;
import com.badlogic.gdx.graphics.g2d.PolygonSpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;

public class SimpleTest3 extends ApplicationAdapter {
	OrthographicCamera camera;
	PolygonSpriteBatch batch;
	SkeletonRenderer renderer;
	SkeletonRendererDebug debugRenderer;

	TextureAtlas atlas;
	Skeleton skeleton;
	AnimationState state;

	public void create () {
		camera = new OrthographicCamera();
		batch = new PolygonSpriteBatch(); // Required to render meshes. SpriteBatch can't render meshes.
		renderer = new SkeletonRenderer();
		renderer.setPremultipliedAlpha(true);
		debugRenderer = new SkeletonRendererDebug();
		debugRenderer.setMeshTriangles(false);
		debugRenderer.setRegionAttachments(false);
		debugRenderer.setMeshHull(false);

		atlas = new TextureAtlas(Gdx.files.internal("raptor/raptor-pma.atlas"));
		SkeletonJson json = new SkeletonJson(atlas); // This loads skeleton JSON data, which is stateless.
		json.setScale(0.5f); // Load the skeleton at 50% the size it was in Spine.
		SkeletonData skeletonData = json.readSkeletonData(Gdx.files.internal("raptor/raptor-pro.json"));

		skeleton = new Skeleton(skeletonData); // Skeleton holds skeleton state (bone positions, slot attachments, etc).
		skeleton.setPosition(250, 20);

		AnimationStateData stateData = new AnimationStateData(skeletonData); // Defines mixing (crossfading) between animations.

		state = new AnimationState(stateData); // Holds the animation state for a skeleton (current animation, time, etc).
		state.setTimeScale(0.6f); // Slow all animations down to 60% speed.

		// Queue animations on tracks 0 and 1.
		state.setAnimation(0, "walk", true);		
		state.addAnimation(1, "gun-grab", false, 2); // Keys in higher tracks override the pose from lower tracks.
	}

	public void render () {
		state.update(Gdx.graphics.getDeltaTime()); // Update the animation time.

		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

		if (state.apply(skeleton)) // Poses skeleton using current animations. This sets the bones' local SRT.
			skeleton.updateWorldTransform(); // Uses the bones' local SRT to compute their world SRT.

		// Configure the camera, SpriteBatch, and SkeletonRendererDebug.
		camera.update();
		batch.getProjectionMatrix().set(camera.combined);
		debugRenderer.getShapeRenderer().setProjectionMatrix(camera.combined);

		batch.begin();
		renderer.draw(batch, skeleton); // Draw the skeleton images.
		batch.end();

		debugRenderer.draw(skeleton); // Draw debug lines.
	}

	public void resize (int width, int height) {
		camera.setToOrtho(false); // Update camera with new size.
	}

	public void dispose () {
		atlas.dispose();
	}

	public static void main (String[] args) throws Exception {
		new LwjglApplication(new SimpleTest3());
	}
}