PreviousLookAction.java

/*
 * Catroid: An on-device visual programming system for Android devices
 * Copyright (C) 2010-2016 The Catrobat Team
 * (<http://developer.catrobat.org/credits>)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * An additional term exception under section 7 of the GNU Affero
 * General Public License, version 3, is available at
 * http://developer.catrobat.org/license_additional_term
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.catrobat.catroid.content.actions;

import com.badlogic.gdx.scenes.scene2d.actions.TemporalAction;

import org.catrobat.catroid.common.LookData;
import org.catrobat.catroid.content.Sprite;

import java.util.List;

public class PreviousLookAction extends TemporalAction {

	private Sprite sprite;

	@Override
	protected void update(float delta) {
		final List<LookData> lookDataList = sprite.getLookDataList();
		int lookDataListSize = lookDataList.size();

		if (lookDataListSize > 0 && sprite.look.getLookData() != null) {
			LookData currentLookData = sprite.look.getLookData();

			int newIndex = (lookDataList.indexOf(currentLookData) - 1);
			newIndex = (newIndex < 0) ? lookDataListSize - 1 : newIndex;

			sprite.look.setLookData(lookDataList.get(newIndex));
		}
	}

	public void setSprite(Sprite sprite) {
		this.sprite = sprite;
	}
}