packages/stunner-editors/lienzo-webapp/src/main/java/org/kie/lienzo/client/SpriteExample.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *  http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License. 
 */

package org.kie.lienzo.client;

import java.util.ArrayList;

import com.ait.lienzo.client.core.shape.Layer;
import com.ait.lienzo.client.core.shape.Sprite;
import com.ait.lienzo.client.core.shape.Text;
import com.ait.lienzo.client.core.types.BoundingBox;
import com.ait.lienzo.client.core.types.SpriteBehaviorMap;
import com.ait.lienzo.shared.core.types.DragMode;

public class SpriteExample extends BaseExample implements Example {

    private String imagePath = "images/icon_sprite.png";

    private static final String TEXT_FONT = "oblique normal bold";

    private static final int TEXT_SIZE = 16;

    private final ArrayList<Sprite> m_splist = new ArrayList<>();

    private boolean m_active = true;

    public SpriteExample(final String title) {
        super(title);
    }

    @Override
    public void run() {
        addSprite(50, 50, layer);

        addSprite(100, 200, layer);

        addSprite(200, 50, layer);

        addSprite(300, 300, layer);

        addSprite(400, 100, layer);

        Text text = new Text("Click coins to start/stop the Sprite animations.", TEXT_FONT, TEXT_SIZE);
        text.setX(10).setY(400).setFillColor("black");
        layer.add(text);
    }

    private final void addSprite(final int x, final int y, final Layer layer) {
        final ArrayList<BoundingBox> frames = new ArrayList<>();

        for (int i = 0; i < 10; i++) {
            frames.add(BoundingBox.fromDoubles(i * 50, 0, (i * 50) + 50, 50));
        }
        final double tickssec = 10; // ticks per second

        final String behavior = "spincoin";

        final Sprite theSprite = new Sprite(imagePath, tickssec, new SpriteBehaviorMap(behavior, frames.toArray(new BoundingBox[frames.size()])), behavior)
                .setDraggable(true).setDragMode(DragMode.SAME_LAYER).setX(x).setY(y)
                .onLoaded((sprite) -> {
                    layer.add(sprite);
                    if (m_active) {
                        sprite.play();
                    }
                });

        theSprite.addNodeMouseClickHandler((e) -> {
            if (m_active) {
                suspend();
            } else {
                activate();
            }
        });
        m_splist.add(theSprite);
    }

    public boolean activate() {
        if (!m_active) {
            for (final Sprite sprite : m_splist) {
                if ((null != sprite.getLayer()) && (sprite.isLoaded()) && (false == sprite.isPlaying())) {
                    sprite.play();
                }
            }
            m_active = true;
            return true;
        }
        return false;
    }

    public boolean suspend() {
        if (m_active) {
            for (final Sprite sprite : m_splist) {
                if ((null != sprite.getLayer()) && (sprite.isLoaded()) && (sprite.isPlaying())) {
                    sprite.pause();
                }
            }
            m_active = false;
            return true;
        }
        return false;
    }
}