Added support for pausing a media panel which pauses all sprites and

animations currently operating therein. (It doesn't pause scrolling which
I suppose I'll have to fix at some point if we ever need it.)


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@1292 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/media/animation/Animation.java

@@ -1,5 +1,5 @@
 //
-// $Id: Animation.java,v 1.5 2002/04/23 01:16:28 mdb Exp $
+// $Id: Animation.java,v 1.6 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.animation;
 
@@ -75,6 +75,16 @@ public abstract class Animation
      */
     public abstract void paint (Graphics2D gfx);
 
+    /**
+     * This is called if the animation manager is paused for some length
+     * of time and then unpaused. Animations should adjust any time stamps
+     * they are maintaining internally by the delta so that time maintains
+     * the illusion of flowing smoothly forward.
+     */
+    public void fastForward (long timeDelta)
+    {
+    }
+
     /**
      * Returns true if the animation has finished all of its business,
      * false if not.

src/java/com/threerings/media/animation/AnimationManager.java

@@ -1,5 +1,5 @@
 //
-// $Id: AnimationManager.java,v 1.9 2002/04/23 01:16:28 mdb Exp $
+// $Id: AnimationManager.java,v 1.10 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.animation;
 
@@ -102,6 +102,22 @@ public class AnimationManager
         }
     }
 
+    /**
+     * If the animation manager is paused for some length of time, it
+     * should be fast forwarded by the appropriate number of milliseconds.
+     * This allows animations to smoothly pick up where they left off
+     * rather than abruptly jumping into the future, thinking that some
+     * outrageous amount of time passed since their last tick.
+     */
+    public void fastForward (long timeDelta)
+    {
+        // fast forward all of our animations
+        int size = _anims.size();
+        for (int ii = 0; ii < size; ii++) {
+            ((Animation)_anims.get(ii)).fastForward(timeDelta);
+        }
+    }
+
     /**
      * Renders all registered animations in the given layer that intersect
      * the supplied clipping rectangle to the given graphics context.

src/java/com/threerings/media/animation/BobbleAnimation.java

@@ -1,5 +1,5 @@
 //
-// $Id: BobbleAnimation.java,v 1.3 2002/04/15 18:18:20 mdb Exp $
+// $Id: BobbleAnimation.java,v 1.4 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.animation;
 
@@ -58,6 +58,12 @@ public class BobbleAnimation extends Animation
         _y = (_sy + dy) * ((RandomUtil.getInt(2) == 0) ? -1 : 1);
     }
 
+    // documentation inherited
+    public void fastForward (long timeDelta)
+    {
+        _end += timeDelta;
+    }
+
     // documentation inherited
     public void paint (Graphics2D gfx)
     {

src/java/com/threerings/media/animation/ExplodeAnimation.java

@@ -1,5 +1,5 @@
 //
-// $Id: ExplodeAnimation.java,v 1.7 2002/04/15 18:18:20 mdb Exp $
+// $Id: ExplodeAnimation.java,v 1.8 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.animation;
 
@@ -134,6 +134,12 @@ public class ExplodeAnimation extends Animation
         _start = timestamp;
     }
 
+    // documentation inherited
+    public void fastForward (long timeDelta)
+    {
+        _start += timeDelta;
+    }
+
     // documentation inherited
     public void tick (long timestamp)
     {

src/java/com/threerings/media/animation/FadeAnimation.java

@@ -1,5 +1,5 @@
 //
-// $Id: FadeAnimation.java,v 1.3 2002/01/31 17:35:41 shaper Exp $
+// $Id: FadeAnimation.java,v 1.4 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.animation;
 
@@ -76,6 +76,12 @@ public class FadeAnimation extends Animation
         invalidate();
     }
 
+    // documentation inherited
+    public void fastForward (long timeDelta)
+    {
+        _start += timeDelta;
+    }
+
     // documentation inherited
     public void paint (Graphics2D gfx)
     {

src/java/com/threerings/media/animation/RainAnimation.java

@@ -1,5 +1,5 @@
 //
-// $Id: RainAnimation.java,v 1.3 2002/04/23 01:16:28 mdb Exp $
+// $Id: RainAnimation.java,v 1.4 2002/04/25 16:23:30 mdb Exp $
 
 package com.threerings.media.animation;
 
@@ -73,6 +73,12 @@ public class RainAnimation extends Animation
         invalidate();
     }
 
+    // documentation inherited
+    public void fastForward (long timeDelta)
+    {
+        _end += timeDelta;
+    }
+
     // documentation inherited
     public void paint (Graphics2D gfx)
     {