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state.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2003-2004 The ScummVM project
 *
 * 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.

 * 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.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * $Header: /cvsroot/scummvm/scummvm/queen/state.h,v 1.4 2004/01/06 12:45:29 fingolfin Exp $
 *
 */

#ifndef QUEENSTATE_H
#define QUEENSTATE_H

#include "common/util.h"
#include "queen/defs.h"

namespace Queen {


enum StateTalk {
      STATE_TALK_TALK,
      STATE_TALK_MUTE
};

enum StateGrab {
      STATE_GRAB_NONE,
      STATE_GRAB_DOWN,
      STATE_GRAB_UP,
      STATE_GRAB_MID
};

enum StateOn {
      STATE_ON_ON,
      STATE_ON_OFF
};

enum StateUse {
      STATE_USE,
      STATE_USE_ON
};


/*!
      Each object/item in game has a state field. 
      (refer to ObjectData and ItemData).
      
      <table>
            <tr>
                  <td>Name</td>
                  <td>Bits</td>
                  <td>Description</td>
            </tr> 
            <tr>
                  <td>USE</td>
                  <td>10</td>
                  <td>Use</td>
            </tr>
            <tr>
                  <td>TALK</td>
                  <td>9</td>
                  <td>Talk</td>
            </tr>
            <tr>
                  <td>ON</td>
                  <td>8</td>
                  <td>On/Off</td>
            </tr>
            <tr>
                  <td>DEF</td>
                  <td>7,6,5,4</td>
                  <td>Default verb command</td>
            </tr>
            <tr>
                  <td>DIR</td>
                  <td>3,2</td>
                  <td>Direction to face for the object</td>
            </tr>
            <tr>
                  <td>GRAB</td>
                  <td>1,0</td>
                  <td>Grab Direction</td>
            </tr>
      </table>
*/
00096 struct State {

      static Direction findDirection(uint16 state);
      static StateTalk findTalk(uint16 state);
      static StateGrab findGrab(uint16 state);
      static StateOn   findOn(uint16 state);
      static Verb      findDefaultVerb(uint16 state);
      static StateUse  findUse(uint16 state);

      static void alterOn(uint16 *objState, StateOn state);
      static void alterDefaultVerb(uint16 *objState, Verb v);
};


} // End of namespace Queen

#endif

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