-- GameState.hs
-- Tom Moertel <tom@moertel.com>
-- CVS $Id: GameState.hs,v 1.4 2002/09/06 04:03:51 thor Exp $

-- | The GameState module represents the present state of the game.
-- We keep track of the everything we know about the robots and other
-- items in play.

module GameState

where

import Data.FiniteMap

import BasicTypes


data GameState          =  GS { -- | What we know about robots in the game.
                                gsRobots   :: RobotKnowledge

                                -- | What we know about packages.
                              , gsPackages :: PackageKnowledge
                              }

instance Show GameState
    where
    showsPrec _ (GS rbtK pkgK) s
                        =  "ROBOTS\n"
                        ++ unlines (map show (fmToList rbtK)) ++ "\n\n"
                        ++ "PACKAGES\n"
                        ++ unlines (map show (fmToList pkgK)) ++ "\n\n"
                        ++ s

type RobotKnowledge     =  FiniteMap RobotID Robot
type PackageKnowledge   =  FiniteMap PackageID Package


emptyState              :: GameState
emptyState              =  GS { gsRobots   = emptyFM
                              , gsPackages = emptyFM
                              }



-- =================================================================
--
-- Copyright (C) 2002 Thomas Moertel.
-- 
-- This program is free software; you can redistribute it and/or
-- modify it under the terms of the GNU General Public License
-- as published by the Free Software Foundation; either version 2
-- of the License, or (at your option) any later version.
-- 
-- The text of the GNU GPL may be found in the LICENSE file,
-- included with this software, or online at the following URL:
-- 
--     http://www.gnu.org/copyleft/gpl.html
-- 
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-- GNU General Public License for more details.
-- 
-- Except as provided for under the terms of the GNU GPL, all rights
-- are reserved worldwide.
--
-- =================================================================