class_door.php

一个基于web的rpg游戏源代码

<?php
/**
* Netlands World Server is the coordinator of the VR in the Netlands Project
* Copyright (C) 2002 Ricard Pillosu
* 
* 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.
*/
/* vim: set expandtab tabstop=4 shiftwidth=4 */

/**
* Class door, the links between the rooms
*
* With this class we define the invisible, abstract link between the rooms.
* The only way to moving in the VR is using this "exits" to another room.
* Thay can have a lot of properties (open, closed, transparent, etc...)
*
* @see entity
* @see room
*
* @version $Id: class_door.php,v 1.4 2002/09/29 12:31:59 doneval Exp $
* @author Ricard Pillosu <[e-mail]>
* @copyright Ricard Pillosu 2002
* @since Sun, 04 Aug 2002 20:00:41 +0200
*/
class door extends entity {
    /**
    * @var object References to the room where this door leads
    */
    private $target;

    /**
    * Init vars
    * @param object $entity_list    the reference to the list where I belong
    * @param string $key            The key to be used by this entity
    */
    function __construct(&$entity_list, $key = NULL) {
        parent::__construct($entity_list, $key);
        $this->type = entity_list::T_DOOR;
        $this->target = NULL;
    }

    /**
    * Update game vars array
    */
    function update_game_vars($vars_to_update) {
        // Filter use of target_id
        foreach(array_keys($vars_to_update) as $var_to_update) {
            switch($var_to_update) {
            case "target_id":
                $target_id = $vars_to_update["target_id"];
                if($this->set_target_id($target_id) == FALSE) {
                    unset($vars_to_update);
                }
            break;
            }
        }
        // Add the rest of non-important variables
        $this->game_vars = array_merge($this->game_vars, $vars_to_update);
        return(TRUE);
    }

    function &get_target() {
        return($this->target);
    }

    function set_target_id($key) {
        $entity = & $this->entity_list->get_entity($key, FALSE);
        if($entity == FALSE) {
            return(FALSE);
        }
        $this->target = & $entity;
        return(TRUE);
    }

    function transport_entity(&$entity) {
        // Check that $this->target is OK
        $this->entity_list->is_entity($this->target);

        // Check that the entity and I are in the same place
        if($this->parent->is_my_child($entity, FALSE) == FALSE) {
            throw new exception("entity and door are not in same place");
        }

        // Check that $this->target is OK
        $this->entity_list->is_entity($this->target);

        // Move it!
        $this->entity_list->move_entity_to($entity, $this->target, $this);
        
        // Ok all
        return(TRUE);
    }
}

?>