From d08af5722c6221076e03a51fab966781dfaebd04 Mon Sep 17 00:00:00 2001
From: Dan Ballard <dan@mindstab.net>
Date: Tue, 13 Sep 2011 23:33:51 -0700
Subject: [PATCH] better integrate ai and play function.  it works for moves.
 not so much with jumps

---
 checkers.rb | 35 ++++++++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 11 deletions(-)

diff --git a/checkers.rb b/checkers.rb
index 4530ffe..2851368 100644
--- a/checkers.rb
+++ b/checkers.rb
@@ -19,6 +19,7 @@ class Board
 	end
 
 	def setup()
+		initialize()
 		0.step(BOARD_SIZE) {|i|
 		       	peice = (i < 3 ? TEAM_1_MAN : TEAM_2_MAN)	
 			if [0,2,6].include? i
@@ -226,7 +227,8 @@ class Board
 					moves.each { |move|
 						board = dup()
 						board.do_move(x, y, move, team(x, y))
-						boards.push( { "board" => board, "move" => move})
+						boards.push( { "board" => board, "move" => 
+							    	{'from' => [x,y], 'to' => move}})
 					}
 				end
 			end
@@ -251,7 +253,7 @@ class Board
 	end
 
 	def search(team)
-		search_do(team, team, 0, 6, 100.0, 0.0, @stats.dup, [])
+		return search_do(team, team, 0, 4, 100.0, 0.0, @stats.dup, [])
 	end
 
 	# the owner of the search: affects pruning bonuses
@@ -302,15 +304,15 @@ class Board
 					# modify depth on piece loss
         				if  stats[team]['count'] > move.stats[team]['count']
 						# search less is search owner lost peices
-						if owner == team
-							depth_mod = -4
-						else
-							depth_mod = 4
-						end
+						#if owner == team
+						#	depth_mod = -4
+						#else
+						#	depth_mod = 4
+						#end
 					end
 					sub_score = move.search_do(owner, opposite_team(team), current_depth + 1, max_depth + depth_mod, item_percent, done_percent+done,  @stats.dup, maxs)
        					done += item_percent
-					if done >= 0.01
+					if done >= 10.0
           					done_percent += done;
 						puts "%.2f" % done_percent + "% depth: " + current_depth.to_s + "/" + max_depth.to_s + " max: " + maxs.to_s
 						done = 0.0
@@ -318,6 +320,7 @@ class Board
 					#puts "Score: " + sub_score.to_s
 					if max == nil or sub_score[team] > max[team]
 						max = sub_score
+						max['move'] = moves[i]['move']
 					end
 				end
 				return max
@@ -349,7 +352,7 @@ class Board
 
 	# todo: deal with loss when no move avail
 	def play()
-		setup()
+		#setup()
 		color = ''
 		while color != 'w' and color != 'b'
 			print "Choose color ([W]hite or [B]lack): "
@@ -387,8 +390,11 @@ class Board
 					print "to: "
 					to = gets().strip!
 					from = parse_coords(from)
-					to = parse_coords(to)
-					puts to.to_s + " or " + from.to_s
+					to = to.split(",").map {|c|  parse_coords(c.strip)}
+					if to.length == 1
+						to = to[0]
+					end
+					puts "from "+ from.to_s + " to " + to.to_s
 					if !to or !from
 						next
 					end
@@ -403,6 +409,13 @@ class Board
 				do_move(from[0], from[1], to, team)
 			else
 				puts "AI MOVE"
+				info = search(team)
+				move = info['move']
+				if move == nil
+					puts "NO MOVE!!!"
+				else
+					do_move(move['from'][0], move['from'][1], move['to'], team(move['from'][0], move['from'][1]))
+				end
 			end
 
 			if @stats[TEAM_1]['count'] == 0