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			197 lines
		
	
	
	
		
			7.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			197 lines
		
	
	
	
		
			7.5 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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  Copyright (C) 2015-2016, 2018-2021 cc9cii
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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  cc9cii cc9c@iinet.net.au
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  Much of the information on the data structures are based on the information
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  from Tes4Mod:Mod_File_Format and Tes5Mod:File_Formats but also refined by
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  trial & error.  See http://en.uesp.net/wiki for details.
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*/
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#include "loadwrld.hpp"
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#include <stdexcept>
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#include "reader.hpp"
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// #include "writer.hpp"
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void ESM4::World::load(ESM4::Reader& reader)
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{
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    mId = reader.getFormIdFromHeader();
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    mFlags = reader.hdr().record.flags;
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    // It should be possible to save the current world formId automatically while reading in
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    // the record header rather than doing it manually here but possibly less efficient (may
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    // need to check each record?).
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    //
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    // Alternatively it may be possible to figure it out by examining the group headers, but
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    // apparently the label field is not reliable so the parent world formid may have been
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    // corrupted by the use of ignore flag (TODO: should check to verify).
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    reader.setCurrWorld(mId); // save for CELL later
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    std::uint32_t esmVer = reader.esmVersion();
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    // bool isTES4 = (esmVer == ESM::VER_080 || esmVer == ESM::VER_100);
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    // bool isFONV = (esmVer == ESM::VER_132 || esmVer == ESM::VER_133 || esmVer == ESM::VER_134);
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    bool isTES5 = (esmVer == ESM::VER_094 || esmVer == ESM::VER_170); // WARN: FO3 is also VER_094
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    bool usingDefaultLevels = true;
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    while (reader.getSubRecordHeader())
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    {
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        const ESM4::SubRecordHeader& subHdr = reader.subRecordHeader();
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        switch (subHdr.typeId)
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        {
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            case ESM::fourCC("EDID"):
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                reader.getZString(mEditorId);
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                break;
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            case ESM::fourCC("FULL"):
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                reader.getLocalizedString(mFullName);
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                break;
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            case ESM::fourCC("WCTR"): // TES5+
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                reader.get(mCenterCell);
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                break;
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            case ESM::fourCC("WNAM"):
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                reader.getFormId(mParent);
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                break;
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            case ESM::fourCC("SNAM"):
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                reader.get(mSound);
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                break; // sound, Oblivion only?
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            case ESM::fourCC("ICON"):
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                reader.getZString(mMapFile);
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                break;
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            case ESM::fourCC("CNAM"):
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                reader.getFormId(mClimate);
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                break;
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            case ESM::fourCC("NAM2"):
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                reader.getFormId(mWater);
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                break;
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            case ESM::fourCC("NAM0"):
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            {
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                reader.get(mMinX);
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                reader.get(mMinY);
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                break;
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            }
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            case ESM::fourCC("NAM9"):
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            {
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                reader.get(mMaxX);
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                reader.get(mMaxY);
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                break;
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            }
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            case ESM::fourCC("DATA"):
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                reader.get(mWorldFlags);
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                break;
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            case ESM::fourCC("MNAM"):
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            {
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                reader.get(mMap.width);
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                reader.get(mMap.height);
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                reader.get(mMap.NWcellX);
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                reader.get(mMap.NWcellY);
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                reader.get(mMap.SEcellX);
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                reader.get(mMap.SEcellY);
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                if (subHdr.dataSize == 28) // Skyrim?
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                {
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                    reader.get(mMap.minHeight);
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                    reader.get(mMap.maxHeight);
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                    reader.get(mMap.initialPitch);
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                }
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                break;
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            }
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            case ESM::fourCC("DNAM"): // defaults
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            {
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                reader.get(mLandLevel); //  -2700.f for TES5
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                reader.get(mWaterLevel); // -14000.f for TES5
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                usingDefaultLevels = false;
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                break;
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            }
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            // Only a few worlds in FO3 have music (I'm guessing 00090908 "explore" is the default?)
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            // 00090906 public  WRLD: 00000A74 MegatonWorld
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            // 00090CE7 base    WRLD: 0001A25D DCWorld18 (Arlington National Cemeteray)
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            // 00090CE7 base    WRLD: 0001A266 DCWorld09 (The Mall)
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            // 00090CE7 base    WRLD: 0001A267 DCWorld08 (Pennsylvania Avenue)
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            // 000BAD30 tranquilitylane WRLD: 000244A7 TranquilityLane
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            // 00090CE7 base    WRLD: 000271C0 MonumentWorld (The Washington Monument)
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            // 00090907 dungeon WRLD: 0004C4D1 MamaDolcesWorld (Mama Dolce's Loading Yard)
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            //
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            // FONV has only 3 (note the different format, also can't find the files?):
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            // 00119D2E freeside\freeside_01.mp3 0010BEEA FreesideWorld (Freeside)
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            // 00119D2E freeside\freeside_01.mp3 0012D94D FreesideNorthWorld (Freeside)
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            // 00119D2E freeside\freeside_01.mp3 0012D94E FreesideFortWorld (Old Mormon Fort)
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            // NOTE: FONV DefaultObjectManager has 00090908 "explore" as the default music
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            case ESM::fourCC("ZNAM"):
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                reader.getFormId(mMusic);
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                break;
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            case ESM::fourCC("PNAM"):
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                reader.get(mParentUseFlags);
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                break;
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            case ESM::fourCC("OFST"):
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            case ESM::fourCC("RNAM"): // multiple
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            case ESM::fourCC("MHDT"):
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            case ESM::fourCC("LTMP"):
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            case ESM::fourCC("XEZN"):
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            case ESM::fourCC("XLCN"):
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            case ESM::fourCC("NAM3"):
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            case ESM::fourCC("NAM4"):
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            case ESM::fourCC("NAMA"):
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            case ESM::fourCC("ONAM"):
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            case ESM::fourCC("TNAM"):
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            case ESM::fourCC("UNAM"):
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            case ESM::fourCC("XWEM"):
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            case ESM::fourCC("MODL"): // Model data start
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            case ESM::fourCC("MODT"):
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            case ESM::fourCC("MODC"):
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            case ESM::fourCC("MODS"):
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            case ESM::fourCC("MODF"): // Model data end
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            case ESM::fourCC("INAM"): // FO3
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            case ESM::fourCC("NNAM"): // FO3
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            case ESM::fourCC("XNAM"): // FO3
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            case ESM::fourCC("IMPS"): // FO3 Anchorage
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            case ESM::fourCC("IMPF"): // FO3 Anchorage
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            case ESM::fourCC("CLSZ"): // FO4
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            case ESM::fourCC("WLEV"): // FO4
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                reader.skipSubRecordData();
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                break;
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            default:
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                throw std::runtime_error("ESM4::WRLD::load - Unknown subrecord " + ESM::printName(subHdr.typeId));
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        }
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        if (usingDefaultLevels)
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        {
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            if (isTES5)
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            {
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                mLandLevel = -2700.f;
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                mWaterLevel = -14000.f;
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            }
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            else
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            {
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                mLandLevel = 0.f; // FIXME: not sure that this value is correct
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                mWaterLevel = 0.f;
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            }
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        }
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        // TES4 doesn't define PNAM. Exact parent worldspace behavior needs research
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        if (!reader.hasFormVersion())
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            mParentUseFlags = 0xFFFF;
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    }
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}
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// void ESM4::World::save(ESM4::Writer& writer) const
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//{
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// }
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