Fixed scene rendering issues and improved performance.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@517 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/cast/CharacterManager.java

@@ -1,8 +1,9 @@
 //
-// $Id: CharacterManager.java,v 1.1 2001/10/15 23:53:43 shaper Exp $
+// $Id: CharacterManager.java,v 1.2 2001/10/22 18:21:41 shaper Exp $
 
 package com.threerings.miso.scene;
 
+import java.awt.Point;
 import java.io.IOException;
 
 import com.samskivert.util.Config;
@@ -59,6 +60,7 @@ public class CharacterManager
 
         AmbulatorySprite sprite = new AmbulatorySprite(0, 0, anims);
         sprite.setFrameRate(info.frameRate);
+        sprite.setOrigin(info.origin.x, info.origin.y);
 
         return sprite;
     }
@@ -87,11 +89,12 @@ public class CharacterManager
         public int tsid;
         public int frameCount;
         public int frameRate;
+        public Point origin = new Point();
 
         public String toString ()
         {
             return "[tsid=" + tsid + ", frameCount=" + frameCount +
-                   ", frameRate=" + frameRate + "]";
+                ", frameRate=" + frameRate + ", origin=" + origin + "]";
         }
     }
 }

src/java/com/threerings/cast/CharacterSprite.java

@@ -1,5 +1,5 @@
 //
-// $Id: CharacterSprite.java,v 1.12 2001/10/15 23:53:43 shaper Exp $
+// $Id: CharacterSprite.java,v 1.13 2001/10/22 18:21:41 shaper Exp $
 
 package com.threerings.miso.scene;
 
@@ -45,6 +45,32 @@ public class AmbulatorySprite extends Sprite implements Traverser
         setFrames(_anims[_orient]);
     }
 
+    /**
+     * Sets the origin coordinates representing the "base" of the
+     * sprite, which in most cases corresponds to the center of the
+     * bottom of the sprite image.
+     */
+    public void setOrigin (int x, int y)
+    {
+        _xorigin = x;
+        _yorigin = y;
+
+        updateRenderOffset();
+        updateRenderOrigin();
+    }
+
+    // documentation inherited
+    protected void updateRenderOffset ()
+    {
+        super.updateRenderOffset();
+
+        if (_frame != null) {
+            // our location is based on the character origin coordinates
+            _rxoff = -_xorigin;
+            _ryoff = -_yorigin;
+        }
+    }
+
     // documentation inherited
     public void cancelMove ()
     {
@@ -91,4 +117,7 @@ public class AmbulatorySprite extends Sprite implements Traverser
 
     /** The animation frames for the sprite facing each direction. */
     protected MultiFrameImage[] _anims;
+
+    /** The origin of the sprite. */
+    protected int _xorigin, _yorigin;
 }