Michael Bayne
ae1052a371
things compile and most things run so this is a good time to checkpoint. Let me recall: - Refactored the whole scene deal. - Revamped the XML parser stuff (now uses Digester). - Rethought the tile management. - Started tile bundle stuff. - Wrote some tests. - Did a bit of Mike-ification. Onward and moreward. git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@621 542714f4-19e9-0310-aa3c-eee0fc999fb1
81 lines
2.2 KiB
Java
81 lines
2.2 KiB
Java
//
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// $Id: TileLayer.java,v 1.1 2001/11/18 04:09:21 mdb Exp $
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package com.threerings.media.tile;
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/**
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* The tile layer class is a convenience class provided to simplify the
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* management of a two-dimensional array of tiles. It takes care of
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* dereferencing the tile array efficiently with methods that the Java
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* compiler should inline, and prevents the caller from having to do the
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* indexing multiplication by hand every time.
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*/
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public final class TileLayer
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{
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/**
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* Constructs a tile layer instance with the supplied tiles, width and
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* height. The tiles should exist in row-major format (the first row
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* of tiles followed by the second and so on).
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*
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* @exception IllegalArgumentException thrown if the size of the tiles
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* array does not match the specified width and height.
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*/
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public TileLayer (Tile[] tiles, int width, int height)
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{
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// sanity check
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if (tiles.length != width*height) {
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String errmsg = "tiles.length != width*height";
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throw new IllegalArgumentException(errmsg);
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}
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_tiles = tiles;
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_width = width;
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_height = height;
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}
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/**
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* Returns the width of the layer in tiles.
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*/
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public int getWidth ()
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{
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return _width;
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}
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/**
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* Returns the height of the layer in tiles.
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*/
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public int getHeight ()
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{
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return _height;
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}
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/**
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* Fetches the tile at the specified row and column. Bounds checking
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* is not done. Note that the parameters are column first, followed by
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* row (x, y order rather than row, column order).
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*/
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public Tile getTile (int column, int row)
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{
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return _tiles[row*_width+column];
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}
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/**
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* Sets the tile at the specified row and column. Bounds checking is
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* not done. Note that the parameters are column first, followed by
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* row (x, y order rather than row, column order).
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*/
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public void setTile (int column, int row, Tile tile)
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{
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_tiles[row*_width+column] = tile;
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}
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/** Our tiles array. */
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private Tile[] _tiles;
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/** The number of tiles in a row. */
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private int _width;
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/** The number of rows. */
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private int _height;
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}
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