From 78383da1e33ce2ee7e330cc6ffbcaa20d91c3600 Mon Sep 17 00:00:00 2001
From: Alex AUVOLAT <alex.auvolat@ens.fr>
Date: Mon, 10 Nov 2014 19:58:46 +0100
Subject: Refactor pgo calculation.

---
 judge/morpion_rec.ml | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/judge/morpion_rec.ml b/judge/morpion_rec.ml
index c7ca480..cb23821 100644
--- a/judge/morpion_rec.ml
+++ b/judge/morpion_rec.ml
@@ -111,11 +111,10 @@ module G = struct
   let full_pm m =
     List.for_all (fun p -> getp1 m p <> Empty) all_p1
 
-
   let possibilities (s, m, lg) =
     let pg_poss = match lg with
       | None -> all_p1
-      | Some x -> if full_pm (getp1 m x) then all_p1 else [x]
+      | Some x -> [x]
     in
     List.flatten
       (List.map (fun pg ->
@@ -132,9 +131,7 @@ module G = struct
     | TurnOf player when
         (match pgo with
           | None -> true
-          | Some x when full_pm (getp1 m x) -> true
-          | Some x when pg = x -> true
-          | _ -> false)
+          | Some x -> pg = x)
         && getp m (pg, pp) = Empty 
       ->
         let op = other_player player in
@@ -145,7 +142,7 @@ module G = struct
           | O -> Won P2
           | T -> Tie
         in
-        (new_s, new_m, Some pp)
+        (new_s, new_m, if full_pm (getp1 new_m pp) then None else Some pp)
     | TurnOf x -> (Eliminated x, m, pgo)
     | _ -> raise (Eliminated_ex "not someone's turn!")
 
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