A bunch of intertwingled changes:

Refactored TileSet into TileSet, UniformTileSet, SwissArmyTileSet and
ObjectTileSet.

Removed dependence on the "root" system property from the
XMLSceneRepository (things either pass in full paths now or input streams
fetched via the resource manager).

Removed MisoUtil.createImageManager() because everyone does that by hand
now (which is good because some non-Miso things were using MisoUtil for
that).

I think that's it, but if there was something else, don't blame me. Blame
the monkeys.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@608 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/tile/UniformTileSet.java

@@ -0,0 +1,74 @@
+//
+// $Id: UniformTileSet.java,v 1.1 2001/11/08 03:04:44 mdb Exp $
+
+package com.threerings.media.tile;
+
+import java.awt.Image;
+import com.threerings.media.Log;
+import com.threerings.media.ImageManager;
+
+/**
+ * A uniform tileset is one that is composed of tiles that are all the
+ * same width and height and are arranged into rows, with each row having
+ * the same number of tiles except possibly the final row which can
+ * contain the same as or less than the number of tiles contained by the
+ * previous rows.
+ */
+public class UniformTileSet extends TileSet
+{
+    /**
+     * Constructs a tile set object with the specified tileset
+     * configuration parameters.
+     *
+     * @param imgmgr the image manager via which to load the tileset
+     * image.
+     * @param imgPath the path to supply to the image manager when loading
+     * the tile (which will fetch the image using the resource manager).
+     * @param count the number of tiles in the tile image.
+     * @param width the width of each tile, in pixels.
+     * @param height the height of each tile, in pixels.
+     */
+    public UniformTileSet (ImageManager imgmgr, String imgPath,
+                           int count, int width, int height)
+    {
+        super(imgmgr, imgPath, null, 0);
+
+        // keep these for later
+        _count = count;
+        _width = width;
+        _height = height;
+    }
+
+    // documentation inherited
+    public int getTileCount ()
+    {
+        return _count;
+    }
+
+    // documentation inherited
+    protected Image getTileImage (int tileId)
+    {
+        Image tsimg = getTilesetImage();
+        if (tsimg == null) {
+            return null;
+        }
+
+        // figure out from whence to crop the tile
+        int tilesPerRow = tsimg.getWidth(null) / _width;
+        int row = tilesPerRow / tileId;
+        int col = tilesPerRow % tileId;
+
+	// crop the tile-sized image chunk from the full image
+	return _imgmgr.getImageCropped(
+            tsimg, col * _width, row * _height, _width, _height);
+    }
+
+    /** The total number of tiles in this tileset. */
+    protected int _count;
+
+    /** The width (in pixels) of the tiles in this tileset. */
+    protected int _width;
+
+    /** The height (in pixels) of the tiles in this tileset. */
+    protected int _height;
+}