Usecode.cpp

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/*
Copyright (C) 2003-2006 The Pentagram team

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.
*/

#include "pent_include.h"

#include "Usecode.h"
#include "CoreApp.h"

uint32 Usecode::get_class_event(uint32 classid, uint32 eventid)
{
        if (get_class_size(classid) == 0) return 0;

        if (eventid >= get_class_event_count(classid)) {
                perr << "eventid too high: " << eventid << " >= " << get_class_event_count(classid) << " for class " << classid << std::endl;
                CANT_HAPPEN();
        }

        const uint8* data = get_class(classid);

        uint32 offset;
        if (GAME_IS_U8) {
                offset = data[12 + (eventid*4) + 0];
                offset += data[12 + (eventid*4) + 1] << 8;
                offset += data[12 + (eventid*4) + 2] << 16;
                offset += data[12 + (eventid*4) + 3] << 24;
        } else if (GAME_IS_REMORSE) {
                offset = data[20 + (eventid*6) + 2];
                offset += data[20 + (eventid*6) + 3] << 8;
                offset += data[20 + (eventid*6) + 4] << 16;
                offset += data[20 + (eventid*6) + 5] << 24;
        } else {
                CANT_HAPPEN_MSG("Invalid game type.");
        }

        return offset;
}

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