added MCTSAI2 for testing modifications to MCTS AI

exp/extract_games.awk

@@ -8,6 +8,8 @@ function genName() {
         name = "MMAB"
     } else if ($0 ~ /VEGAS/) {
         name = "VEGAS"
+    } else if ($0 ~ /MCTS2/) {
+        name = "MCTS2"
     } else if ($0 ~ /MCTS/) {
         name = "MCTS"
     }

src/magic/ai/MCTSAI.java

@@ -730,7 +730,7 @@ class MCTSGameTree implements Iterable<MCTSGameTree> {
         return parent.isAI() ? sum : 1.0 - sum;
     }
     
-    private double getAvg() {
+    public double getAvg() {
         return sum / numSim;
     }
 

src/magic/ai/MagicAIImpl.java

@@ -9,6 +9,9 @@ public enum MagicAIImpl {
     VEGASC("vegas (cheat)", new VegasAI(true)),
     RND("random", new RandomAI()),
     MMABFast("minimax (deck strength)", magic.ai.MMAB.DeckStrAI()),
+    
+    MCTS2("monte carlo tree search", new MCTSAI2(false)),
+    MCTSC2("monte carlo tree search (cheat)", new MCTSAI2(true)),
     ;
     
     private static final MagicAIImpl[] SUPPORTED_AIS = {MMAB, MMABC, MCTS, MCTSC, VEGAS, VEGASC};