//
// $Id: Tile.java,v 1.3 2001/07/16 00:45:07 shaper Exp $

package com.threerings.cocktail.miso.tile;

import java.awt.Image;
import java.awt.image.BufferedImage;

/**
 * A tile represents a single square in a single layer in a scene.
 */
public class Tile
{
    public BufferedImage img;  // the tile image
    public short tsid;  // the tile set identifier
    public short tid;   // the tile identifier within the set

    // height and width of a tile image in pixels
    public static final int HEIGHT = 16;
    public static final int WIDTH = 32;

    // halved values of tile width/height in pixels for use in common
    // tile-dimension-related calculations
    public static final int HALF_HEIGHT = HEIGHT / 2;
    public static final int HALF_WIDTH = WIDTH / 2;

    public static final float EDGE_LENGTH = (float)
        Math.sqrt((HALF_WIDTH * HALF_WIDTH) + (HALF_HEIGHT * HALF_HEIGHT));

    /**
     * Construct a new tile with the specified identifiers.  Intended
     * only for use by the TileManager.  Do not use this method.
     *
     * @see com.threerings.cocktail.miso.TileManager#getTile
     */
    public Tile (short tsid, short tid)
    {
	this.tsid = tsid;
	this.tid = tid;
    }

    /**
     * Construct a new tile with the specified identifiers.  Intended
     * only for use by the TileManager.  Do not use this method.
     *
     * @see com.threerings.cocktail.miso.TileManager#getTile
     */
    public Tile (int tsid, int tid)
    {
	this.tsid = (short) tsid;
	this.tid = (short) tid;
    }

    public String toString ()
    {
	StringBuffer buf = new StringBuffer();
	buf.append("[tsid=").append(tsid);
	buf.append(", tid=").append(tid);
	buf.append(", img=").append(img);
	return buf.append("]").toString();
    }
}