From ebd50b80f54e4f936c44c420cf9828c077b26570 Mon Sep 17 00:00:00 2001
From: Walter Korman <shaper@threerings.net>
Date: Fri, 3 Jan 2003 02:35:41 +0000
Subject: [PATCH] Tick all game managers every five seconds to allow them to
 engage in any activity that isn't driven by player actions.

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@2093 542714f4-19e9-0310-aa3c-eee0fc999fb1
---
 .../threerings/parlor/game/GameManager.java   | 56 ++++++++++++++++++-
 1 file changed, 55 insertions(+), 1 deletion(-)

diff --git a/src/java/com/threerings/parlor/game/GameManager.java b/src/java/com/threerings/parlor/game/GameManager.java
index d8419ed46..777c2f079 100644
--- a/src/java/com/threerings/parlor/game/GameManager.java
+++ b/src/java/com/threerings/parlor/game/GameManager.java
@@ -1,5 +1,5 @@
 //
-// $Id: GameManager.java,v 1.57 2002/11/29 21:25:37 mdb Exp $
+// $Id: GameManager.java,v 1.58 2003/01/03 02:35:41 shaper Exp $
 
 package com.threerings.parlor.game;
 
@@ -48,6 +48,19 @@ public class GameManager extends PlaceManager
 
         // save off a casted reference to our config
         _gameconfig = (GameConfig)_config;
+
+        // register this game manager
+        _managers.add(this);
+
+        // and start up a tick interval if we've not already got one
+        if (_tiid == -1) {
+            _tiid = IntervalManager.register(
+                new SafeInterval(CrowdServer.omgr) {
+                    public void run () {
+                        tickAllGames();
+                    }
+                }, TICK_DELAY, null, true);
+        }
     }
 
     /**
@@ -409,6 +422,15 @@ public class GameManager extends PlaceManager
     {
         super.didShutdown();
 
+        // unregister this game manager
+        _managers.remove(this);
+
+        // remove the tick interval if there are no remaining managers
+        if (_managers.size() == 0) {
+            IntervalManager.remove(_tiid);
+            _tiid = -1;
+        }
+
         // clear out our service registration
         _invmgr.clearDispatcher(_gameobj.gameService);
     }
@@ -839,6 +861,15 @@ public class GameManager extends PlaceManager
         return true;
     }
 
+    /**
+     * Gives game managers an opportunity to perform periodic processing
+     * that is not driven by events generated by the player.
+     */
+    protected void tick (long tickStamp)
+    {
+        // nothing for now
+    }
+
     // documentation inherited
     public void attributeChanged (AttributeChangedEvent event)
     {
@@ -858,6 +889,20 @@ public class GameManager extends PlaceManager
         }
     }
 
+    /**
+     * Called periodically to call {@link #tick} on all registered game
+     * managers.
+     */
+    protected static void tickAllGames ()
+    {
+        long now = System.currentTimeMillis();
+        int size = _managers.size();
+        for (int ii = 0; ii < size; ii++) {
+            GameManager gmgr = (GameManager)_managers.get(ii);
+            gmgr.tick(now);
+        }
+    }
+
     /**
      * A helper operation to distribute AI ticks to our delegates.
      */
@@ -900,7 +945,16 @@ public class GameManager extends PlaceManager
     /** Our delegate operator to tick AIs. */
     protected TickAIDelegateOp _tickAIOp;
 
+    /** A list of all currently active game managers. */
+    protected static ArrayList _managers = new ArrayList();
+
+    /** The interval id for the game manager tick interval. */
+    protected static int _tiid = -1;
+
     /** We give players 30 seconds to turn up in a puzzle and after that,
      * they're considered a no show. */
     protected static final long NOSHOW_DELAY = 30 * 1000L;
+
+    /** The delay in milliseconds between ticking of all game managers. */
+    protected static final long TICK_DELAY = 5L * 1000L;
 }