/*
 * Copyright 2004-2010, Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>
 * Copyright 2004-2006, Adam Turk <aturk@biggeruniverse.com>
 *
 * This file is part of libtiled-java.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``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 THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) 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 tiled.core;

import java.awt.*;
import java.util.Properties;

/**
 * The core class for our tiles.
 */
public class Tile
{
    private Image image;
    private int id = -1;
    private Properties properties;
    private TileSet tileset;

    public Tile() {
//        properties = new Properties();
    }

    public Tile(TileSet set) {
        this();
        setTileSet(set);
    }

    /**
     * Copy constructor
     *
     * @param t tile to copy
     */
    public Tile(Tile t) {
        if (t.properties != null) properties = (Properties) t.properties.clone();
        tileset = t.tileset;
    }

    /**
     * Sets the id of the tile as long as it is at least 0.
     *
     * @param i The id of the tile
     */
    public void setId(int i) {
        if (i >= 0) {
            id = i;
        }
    }

    /**
     * Sets the image of the tile.
     *
     * @param i the new image of the tile
     */
    public void setImage(Image i) {
        image = i;
    }

    /**
     * Sets the parent tileset for a tile.
     *
     * @param set
     */
    public void setTileSet(TileSet set) {
        tileset = set;
    }

    public void setProperties(Properties p) {
        properties = p;
    }

    public Properties getProperties() {
    	if (properties == null) return new Properties();
        return properties;
    }

    /**
     * Returns the tile id of this tile, relative to tileset.
     *
     * @return id
     */
    public int getId() {
        return id;
    }

    /**
     * Returns the {@link tiled.core.TileSet} that this tile is part of.
     *
     * @return TileSet
     */
    public TileSet getTileSet() {
        return tileset;
    }

    public int getWidth() {
        if (image != null)
            return image.getWidth(null);
        return 0;
    }

    public int getHeight() {
        if (image != null)
            return image.getHeight(null);
        return 0;
    }

    /**
     * Returns the tile image for this Tile.
     *
     * @return Image
     */
    public Image getImage() {
    	if (tileset != null && tileset.sheet != null) return tileset.sheet.getImage(getId());
        return image;
    }

    /**
     * @see java.lang.Object#toString()
     */
    public String toString() {
        return "Tile " + id + " (" + getWidth() + "x" + getHeight() + ")";
    }
}