Highlight the tile under the mouse cursor. Increase the width of a

scene for easier testing.  Other minor clean-up.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@51 542714f4-19e9-0310-aa3c-eee0fc999fb1

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

@@ -1,5 +1,5 @@
 //
-// $Id: Tile.java,v 1.2 2001/07/14 00:21:24 shaper Exp $
+// $Id: Tile.java,v 1.3 2001/07/16 00:45:07 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
@@ -24,6 +24,9 @@ public class Tile
     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.

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

@@ -1,5 +1,5 @@
 //
-// $Id: TileSet.java,v 1.2 2001/07/14 00:21:24 shaper Exp $
+// $Id: TileSet.java,v 1.3 2001/07/16 00:45:07 shaper Exp $
 
 package com.threerings.cocktail.miso.tile;
 
@@ -55,11 +55,9 @@ public class TileSet
 	// load the full tile image if we don't already have it
 	if (_imgTiles == null) {
 	    Log.info("Getting full tileset image [file=" + _file + "].");
-	    if (_imgTiles == null) {
-		if ((_imgTiles = ImageManager.getImage(_file)) == null) {
-		    Log.warning("Failed to retrieve full tileset image.");
-		    return null;
-		}
+	    if ((_imgTiles = ImageManager.getImage(_file)) == null) {
+		Log.warning("Failed to retrieve full tileset image.");
+		return null;
 	    }
 	}
 	

src/java/com/threerings/media/util/MathUtil.java

@@ -0,0 +1,40 @@
+//
+// $Id: MathUtil.java,v 1.1 2001/07/16 00:45:07 shaper Exp $
+
+package com.threerings.cocktail.miso.util;
+
+import com.threerings.cocktail.miso.Log;
+
+import java.awt.Point;
+
+/**
+ * Provides miscellaneous useful utility routines for mathematical
+ * calculations.
+ */
+public class MathUtil
+{
+    /**
+     * Return the distance between the given points.
+     */
+    public static float distance (int x0, int y0, int x1, int y1)
+    {
+	return (float)Math.sqrt(((x1 - x0) * (x1 - x0)) +
+				((y1 - y0) * (y1 - y0)));
+    }
+
+    /**
+     * Return a string representation of the given line.
+     */
+    public static String lineToString (int x0, int y0, int x1, int y1)
+    {
+	return "(" + x0 + ", " + y0 + ") -> (" + x1 + ", " + y1 + ")";
+    }
+
+    /**
+     * Return a string representation of the given line.
+     */
+    public static String lineToString (Point p1, Point p2)
+    {
+	return lineToString(p1.x, p1.y, p2.x, p2.y);
+    }
+}