mirror of
https://github.com/odamex/odamex
synced 2026-08-19 02:23:09 -04:00
98 lines
No EOL
2.6 KiB
C++
98 lines
No EOL
2.6 KiB
C++
// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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// Copyright (C) 2006-2026 by The Odamex Team.
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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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//
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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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//
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// DESCRIPTION:
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// AutoMap module.
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//
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//-----------------------------------------------------------------------------
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#include "odamex.h"
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#include "am_map.h"
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#include "w_wad.h"
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#include "oscanner.h"
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//
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static bool ScanAndCompareString(OScanner& os, std::string cmp)
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{
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os.scan();
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if (!os.compareToken(cmp.c_str()))
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{
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os.warning("Expected \"{}\", got \"{}\". Aborting parsing", cmp, os.getToken());
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return false;
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}
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return true;
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}
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//
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static bool ScanAndSetRealNum(OScanner& os, fixed64_t& num)
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{
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os.scan();
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if (!IsRealNum(os.getToken().c_str()))
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{
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os.warning("Expected number, got \"{}\". Aborting parsing", os.getToken());
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return false;
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}
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num = FLOAT2FIXED64(os.getTokenFloat());
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return true;
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}
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// Scans through and interprets a file of lines
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nonstd::expected<std::vector<mline_t>, am_lump_parse_error_t> AM_ParseVectorLump(const OLumpName& name)
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{
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const int lump = W_CheckNumForName(name, 0);
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if (lump == -1)
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return nonstd::make_unexpected(am_lump_parse_error_t::LUMP_NOT_FOUND);
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const char* buffer = static_cast<char*>(W_CacheLumpNum(lump, PU_STATIC));
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const OScannerConfig config = {
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name, // lumpName
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false, // semiComments
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true, // cComments
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};
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OScanner os = OScanner::openBuffer(config, buffer, buffer + W_LumpLength(lump));
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std::vector<mline_t> lines;
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while (os.scan())
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{
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os.unScan();
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mline_t ml;
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if (!ScanAndCompareString(os, "(")) break;
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if (!ScanAndSetRealNum(os, ml.a.x)) break;
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if (!ScanAndCompareString(os, ",")) break;
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if (!ScanAndSetRealNum(os, ml.a.y)) break;
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if (!ScanAndCompareString(os, ")")) break;
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if (!ScanAndCompareString(os, ",")) break;
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if (!ScanAndCompareString(os, "(")) break;
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if (!ScanAndSetRealNum(os, ml.b.x)) break;
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if (!ScanAndCompareString(os, ",")) break;
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if (!ScanAndSetRealNum(os, ml.b.y)) break;
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if (!ScanAndCompareString(os, ")")) break;
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lines.push_back(ml);
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}
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return lines;
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} |