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65 lines
1.9 KiB
C++
65 lines
1.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef STARTREK_IWFILE_H
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#define STARTREK_IWFILE_H
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#include "startrek/startrek.h"
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/**
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* Files with the ".iw" extension define a set of "key points" through a room used for
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* pathing. This is a basic interface for that.
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*/
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namespace StarTrek {
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const int MAX_KEY_POSITIONS = 32;
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class IWFile {
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public:
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IWFile(StarTrekEngine *vm, const Common::String &filename);
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int getNumEntries() {
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return _numEntries;
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}
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/**
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* Returns the index of the nearest "key position" in the room that an object can walk to
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* (in a straight line) from a given position.
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*/
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int getClosestKeyPosition(int16 x, int16 y);
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///< List of "key positions" used for pathing.
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Common::Point _keyPositions[MAX_KEY_POSITIONS];
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///< _iwEntries[i][j] is the index of the next key position to move to, when one is
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/// already at key position "i" and is trying to get to key position "j".
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byte _iwEntries[MAX_KEY_POSITIONS][MAX_KEY_POSITIONS];
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private:
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StarTrekEngine *_vm;
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uint16 _numEntries;
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};
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} // End of namespace StarTrek
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#endif
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