oncall.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 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
 * aint32 with this program; if not, write to the Free Software
 *
 *
 * Based on the original sources
 *   Faery Tale II -- The Halls of the Dead
 *   (c) 1993-1996 The Wyrmkeep Entertainment Co.
 */

#ifndef SAGA2_ONCALL_H
#define SAGA2_ONCALL_H

namespace Saga2 {

class HandleArray {
private:
    Common::Array<byte*> _handles;
    uint32 _tileID;
    byte *(*_loader)(hResID, bool);
public:
    HandleArray(uint16 size, byte*(*loadfunction)(hResID, bool), uint32 newID) {
        for (int i = 0; i < size; ++i)
            _handles.push_back(nullptr);
        _loader = loadfunction;
        _tileID = newID;
    }

    void flush() {
        for (unsigned int i = 0; i < _handles.size(); ++i) {
            if (_handles[i]) {
                free(_handles[i]);
                _handles[i] = nullptr;
            }
        }
    }

    byte *operator[](uint32 ind) {
        if (_handles[ind])
            return _handles[ind];

        return _handles[ind] = _loader(_tileID + MKTAG(0, 0, 0, ind), false);
    }
};

} // end of namespace Saga2

#endif