From 19083958331eb69b1058163e59717c6671680af4 Mon Sep 17 00:00:00 2001
From: Yann Dirson <ydirson@linagora.com>
Date: Thu, 9 Jul 2009 19:56:17 +0200
Subject: [PATCH] First stake at a minishogi variant.

---
 lib/plugins/shogi/lib/state.rb | 32 ++++++++++++++++++++++++++++++++
 lib/plugins/shogi/shogi.rb     | 21 ++++++++++++++++++++-
 2 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/lib/plugins/shogi/lib/state.rb b/lib/plugins/shogi/lib/state.rb
index e5c2e1e..f1fc10e 100644
--- a/lib/plugins/shogi/lib/state.rb
+++ b/lib/plugins/shogi/lib/state.rb
@@ -67,6 +67,10 @@ module Shogi
       color == :black ? @board.size.y - 1 - i : i
     end
     
+    def col(i, color)
+      color == :black ? i : @board.size.x - 1 - i
+    end
+
     def opposite_color(color)
       color == :black ? :white : :black
     end
@@ -113,3 +117,31 @@ module Shogi
     end
   end
 end
+
+module MiniShogi
+  class State < Shogi::State
+
+    def setup
+      each_color do |color|
+
+        r = row(0, color)
+        set_piece = lambda do |x, type|
+          @board[Point.new(x, r)] = piece_factory.new(color, type)
+        end
+        set_piece[col(0,color), :king]
+        set_piece[col(1,color), :gold]
+        set_piece[col(2,color), :silver]
+        set_piece[col(3,color), :bishop]
+        set_piece[col(4,color), :rook]
+
+        r = row(1, color)
+        set_piece[col(0,color), :pawn]
+      end
+    end
+
+    def in_promotion_zone?(p, color)
+      (row(4, color) <=> p.y) != (color == :black ? -1 : 1)
+    end
+
+  end
+end
diff --git a/lib/plugins/shogi/shogi.rb b/lib/plugins/shogi/shogi.rb
index 09981a5..d848d7c 100644
--- a/lib/plugins/shogi/shogi.rb
+++ b/lib/plugins/shogi/shogi.rb
@@ -70,4 +70,23 @@ class Game
   end
 end
 
-end
\ No newline at end of file
+end
+
+module MiniShogi
+
+class Game < Shogi::Game
+  plugin :name => 'MiniShogi',
+         :id => :minishogi,
+         :interface => :game,
+         :keywords => %w(shogi)
+
+  def initialize
+    super
+    @size = Point.new(5, 5)
+    @state = Factory.new { State.new(board.new, pool, move, piece) }
+    @game_extensions = []
+  end
+
+end
+
+end
-- 
2.11.4.GIT