StatSet.addToSetStat, for IntSetStats

git-svn-id: svn+ssh://src.earth.threerings.net/vilya/trunk@671 c613c5cb-e716-0410-b11b-feb51c14d237

src/java/com/threerings/stats/data/StatSet.java

@@ -127,6 +127,24 @@ public final class StatSet extends DSet<Stat>
         }
     }
 
+    /**
+     * Adds an int value to a {@link IntSetStat}.
+     *
+     * @exception ClassCastException thrown if the registered type of the specified stat is not an
+     * {@link IntSetStat}.
+     */
+    public void addToSetStat (Stat.Type type, int value)
+    {
+        IntSetStat stat = (IntSetStat)get(type.name());
+        if (stat == null) {
+            stat = (IntSetStat)type.newStat();
+            stat.add(value);
+            addStat(stat);
+        } else if (stat.add(value)) {
+            updateStat(stat);
+        }
+    }
+
     /**
      * Increments a string value in a {@link StringMapStat}.
      *