ComeToFrontBrick.java

/**
 * Catroid: An on-device visual programming system for Android devices
 * Copyright (C) 2010-2014 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.html5player.client.bricks;

import java.util.Collection;

import org.catrobat.html5player.client.Sprite;
import org.catrobat.html5player.client.Stage;
import org.catrobat.html5player.client.common.Look;


public class ComeToFrontBrick extends Brick {

	public ComeToFrontBrick(String sprite) {
		super(sprite);
	}

	@Override
	public boolean execute(Sprite sprite) {
		Look look = sprite.getLook();
		Collection<Sprite> sprites = Stage.getInstance().getSpriteManager().getSpriteList();

		if (sprite.isBackground()) //background not allowed to use come to front brick
		{
			return false;
		}

		if (look.getZPosition() == 0) //already at front
		{
			return true;
		}

		for (Sprite sp : sprites) {
			if(!(sp.getName().equals(sprite.getName()) && (sp.getLook().getZPosition() != Integer.MIN_VALUE+1))) //TODO what if at last possible layer, throw exception?
			{
				sp.getLook().setZPosition(sp.getLook().getZPosition()-1);
			}
		}

		look.setZPosition(0);

		//TODO: unit-tests anpassen

		return true;
	}

}