package com.esotericsoftware.spine.html5;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.g2d.PolygonSpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.esotericsoftware.spine.AnimationState;
import com.esotericsoftware.spine.AnimationStateData;
import com.esotericsoftware.spine.Skeleton;
import com.esotericsoftware.spine.SkeletonData;
import com.esotericsoftware.spine.SkeletonJson;
import com.esotericsoftware.spine.SkeletonRenderer;

public class SpineHtml5 extends ApplicationAdapter {
    PolygonSpriteBatch batch;
    SkeletonRenderer renderer;
    Skeleton skeleton;
    AnimationState state;

    public void create () {
        batch = new PolygonSpriteBatch();

        renderer = new SkeletonRenderer();
        renderer.setPremultipliedAlpha(true);

        SkeletonJson json = new SkeletonJson(new TextureAtlas(Gdx.files.internal("raptor.atlas")));
        json.setScale(0.6f);
        SkeletonData skeletonData = json.readSkeletonData(Gdx.files.internal("raptor.json"));

        skeleton = new Skeleton(skeletonData);

        AnimationStateData stateData = new AnimationStateData(skeletonData);
        stateData.setDefaultMix(0.2f);

        state = new AnimationState(stateData);
        //play(new String[] {"idle", "walk", "jump", "run"}, new float[] {0, 2, 1.75f, 0});
        play(new String[] {"walk"}, new float[] {0});
    }

    void play (String[] names, float[] delays) {
        state.setAnimation(0, names[0], true);
        for (int i = 1, n = names.length; i < n; i++)
            state.addAnimation(0, names[i], true, delays[i]);
    }

    public void render () {
        state.update(Gdx.graphics.getDeltaTime());
        state.apply(skeleton);
        skeleton.updateWorldTransform();

        skeleton.setPosition(Gdx.graphics.getWidth() / 2, 20);

        Gdx.gl.glClearColor(0, 0, 0, 1);
        Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

        batch.begin();
        renderer.draw(batch, skeleton);
        batch.end();
    }

    public void resize (int width, int height) {
        batch.getProjectionMatrix().setToOrtho2D(0, 0, width, height);
    }
}