From 130d126238ebda9ce16776cc58b98eaae12a17fd Mon Sep 17 00:00:00 2001
From: Michael Bayne <mdb@threerings.net>
Date: Thu, 28 Nov 2002 03:42:17 +0000
Subject: [PATCH] Make it possible for other kinds of sprites to know and
 report their tile coordinates.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2004 542714f4-19e9-0310-aa3c-eee0fc999fb1
---
 .../threerings/miso/client/IsoSceneView.java  | 10 ++++-----
 .../com/threerings/miso/client/IsoSprite.java | 21 +++++++++++++++++++
 .../miso/client/MisoCharacterSprite.java      | 12 ++++-------
 3 files changed, 30 insertions(+), 13 deletions(-)
 create mode 100644 src/java/com/threerings/miso/client/IsoSprite.java

diff --git a/src/java/com/threerings/miso/client/IsoSceneView.java b/src/java/com/threerings/miso/client/IsoSceneView.java
index b92aa0a1e..d76bc92e1 100644
--- a/src/java/com/threerings/miso/client/IsoSceneView.java
+++ b/src/java/com/threerings/miso/client/IsoSceneView.java
@@ -1,5 +1,5 @@
 //
-// $Id: IsoSceneView.java,v 1.125 2002/11/20 22:16:54 mdb Exp $
+// $Id: IsoSceneView.java,v 1.126 2002/11/28 03:42:17 mdb Exp $
 
 package com.threerings.miso.scene;
 
@@ -385,10 +385,10 @@ public class IsoSceneView implements SceneView
             // if this is a miso character sprite, we can use its cached
             // tile coordinates
             int tx, ty;
-            if (sprite instanceof MisoCharacterSprite) {
-                MisoCharacterSprite mcs = (MisoCharacterSprite)sprite;
-                tx = mcs.getTileX();
-                ty = mcs.getTileY();
+            if (sprite instanceof IsoSprite) {
+                IsoSprite iso = (IsoSprite)sprite;
+                tx = iso.getTileX();
+                ty = iso.getTileY();
 
             } else {
                 // otherwise we have to compute them from the screen
diff --git a/src/java/com/threerings/miso/client/IsoSprite.java b/src/java/com/threerings/miso/client/IsoSprite.java
new file mode 100644
index 000000000..f216b1e11
--- /dev/null
+++ b/src/java/com/threerings/miso/client/IsoSprite.java
@@ -0,0 +1,21 @@
+//
+// $Id: IsoSprite.java,v 1.1 2002/11/28 03:42:17 mdb Exp $
+
+package com.threerings.miso.scene;
+
+/**
+ * An interface implementable by sprites that know their tile coordinates
+ * in the isometric view.
+ */
+public interface IsoSprite
+{
+    /**
+     * Returns the sprite's location on the x-axis in tile coordinates.
+     */
+    public int getTileX ();
+
+    /**
+     * Returns the sprite's location on the y-axis in tile coordinates.
+     */
+    public int getTileY ();
+}
diff --git a/src/java/com/threerings/miso/client/MisoCharacterSprite.java b/src/java/com/threerings/miso/client/MisoCharacterSprite.java
index b17c845bd..e2fc3ab05 100644
--- a/src/java/com/threerings/miso/client/MisoCharacterSprite.java
+++ b/src/java/com/threerings/miso/client/MisoCharacterSprite.java
@@ -1,5 +1,5 @@
 //
-// $Id: MisoCharacterSprite.java,v 1.5 2002/07/08 21:41:30 mdb Exp $
+// $Id: MisoCharacterSprite.java,v 1.6 2002/11/28 03:42:17 mdb Exp $
 
 package com.threerings.miso.scene;
 
@@ -17,7 +17,7 @@ import com.threerings.miso.tile.BaseTile;
  * will itself keep the sprite coordinates properly up to date.
  */
 public class MisoCharacterSprite extends CharacterSprite
-    implements Traverser
+    implements Traverser, IsoSprite
 {
     // documentation inherited
     public boolean canTraverse (BaseTile tile)
@@ -26,17 +26,13 @@ public class MisoCharacterSprite extends CharacterSprite
 	return tile.isPassable();
     }
 
-    /**
-     * Returns the sprite's location on the x-axis in tile coordinates.
-     */
+    // documentation inherited from interface
     public int getTileX ()
     {
         return _tilex;
     }
 
-    /**
-     * Returns the sprite's location on the y-axis in tile coordinates.
-     */
+    // documentation inherited from interface
     public int getTileY ()
     {
         return _tiley;