mirror of
https://github.com/ZDoom/gzdoom-gles.git
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364 lines
9.8 KiB
C++
364 lines
9.8 KiB
C++
/*
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** t_load.cpp
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** FraggleScript loader
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**
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**---------------------------------------------------------------------------
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** Copyright 2002-2005 Christoph Oelckers
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include "w_wad.h"
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#include "tarray.h"
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#include "g_level.h"
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#include "sc_man.h"
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#include "s_sound.h"
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#include "r_sky.h"
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#include "t_script.h"
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#include "cmdlib.h"
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#include "p_lnspec.h"
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#include "gi.h"
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#include "xlat/xlat.h"
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void T_Init();
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class FScriptLoader
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{
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enum
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{
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RT_SCRIPT,
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RT_INFO,
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RT_OTHER,
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} readtype;
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int drownflag;
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bool HasScripts;
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bool IgnoreInfo;
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void ParseInfoCmd(char *line, FString &scriptsrc);
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public:
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bool ParseInfo(MapData * map);
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};
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struct FFsOptions : public FOptionalMapinfoData
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{
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FFsOptions()
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{
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identifier = "fragglescript";
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nocheckposition = false;
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}
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virtual FOptionalMapinfoData *Clone() const
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{
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FFsOptions *newopt = new FFsOptions;
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newopt->identifier = identifier;
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newopt->nocheckposition = nocheckposition;
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return newopt;
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}
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bool nocheckposition;
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};
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DEFINE_MAP_OPTION(fs_nocheckposition, false)
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{
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FFsOptions *opt = info->GetOptData<FFsOptions>("fragglescript");
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parse.ParseAssign();
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if (parse.CheckAssign())
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{
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parse.sc.MustGetNumber();
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opt->nocheckposition = !!parse.sc.Number;
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}
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else
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{
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opt->nocheckposition = true;
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Process the lump to strip all unneeded information from it
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//
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//-----------------------------------------------------------------------------
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void FScriptLoader::ParseInfoCmd(char *line, FString &scriptsrc)
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{
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char *temp;
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// clear any control chars
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for(temp=line; *temp; temp++) if (*temp<32) *temp=32;
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if(readtype != RT_SCRIPT) // not for scripts
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{
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temp = line+strlen(line)-1;
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// strip spaces at the beginning and end of the line
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while(*temp == ' ') *temp-- = 0;
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while(*line == ' ') line++;
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if(!*line) return;
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if((line[0] == '/' && line[1] == '/') || // comment
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line[0] == '#' || line[0] == ';') return;
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}
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if(*line == '[') // a new section seperator
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{
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line++;
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if(!strnicmp(line, "scripts", 7))
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{
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readtype = RT_SCRIPT;
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HasScripts = true; // has scripts
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}
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else if (!strnicmp(line, "level info", 10))
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{
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readtype = RT_INFO;
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}
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return;
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}
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if (readtype==RT_SCRIPT)
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{
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scriptsrc << line << '\n';
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}
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else if (readtype==RT_INFO)
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{
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// Read the usable parts of the level info header
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// and ignore the rest.
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FScanner sc;
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sc.OpenMem("LEVELINFO", line, (int)strlen(line));
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sc.SetCMode(true);
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sc.MustGetString();
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if (sc.Compare("levelname"))
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{
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char * beg = strchr(line, '=')+1;
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while (*beg<=' ') beg++;
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char * comm = strstr(beg, "//");
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if (comm) *comm=0;
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level.LevelName = beg;
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}
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else if (sc.Compare("partime"))
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{
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sc.MustGetStringName("=");
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sc.MustGetNumber();
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level.partime=sc.Number;
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}
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else if (sc.Compare("music"))
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{
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bool FS_ChangeMusic(const char * string);
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sc.MustGetStringName("=");
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sc.MustGetString();
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if (!FS_ChangeMusic(sc.String))
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{
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S_ChangeMusic(level.Music, level.musicorder);
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}
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}
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else if (sc.Compare("skyname"))
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{
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sc.MustGetStringName("=");
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sc.MustGetString();
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sky2texture = sky1texture = level.skytexture1 = level.skytexture2 = TexMan.GetTexture (sc.String, FTexture::TEX_Wall, FTextureManager::TEXMAN_Overridable|FTextureManager::TEXMAN_ReturnFirst);
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R_InitSkyMap ();
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}
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else if (sc.Compare("interpic"))
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{
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sc.MustGetStringName("=");
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sc.MustGetString();
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level.info->ExitPic = sc.String;
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}
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else if (sc.Compare("gravity"))
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{
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sc.MustGetStringName("=");
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sc.MustGetNumber();
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level.gravity=sc.Number*8.f;
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}
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else if (sc.Compare("nextlevel"))
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{
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sc.MustGetStringName("=");
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sc.MustGetString();
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strncpy(level.nextmap, sc.String, 8);
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level.nextmap[8]=0;
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}
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else if (sc.Compare("nextsecret"))
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{
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sc.MustGetStringName("=");
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sc.MustGetString();
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strncpy(level.secretmap, sc.String, 8);
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level.secretmap[8]=0;
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}
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else if (sc.Compare("drown"))
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{
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sc.MustGetStringName("=");
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sc.MustGetNumber();
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drownflag=!!sc.Number;
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}
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else if (sc.Compare("consolecmd"))
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{
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char * beg = strchr(line, '=')+1;
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while (*beg<' ') beg++;
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char * comm = strstr(beg, "//");
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if (comm) *comm=0;
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FS_EmulateCmd(beg);
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}
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else if (sc.Compare("ignore"))
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{
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sc.MustGetStringName("=");
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sc.MustGetNumber();
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IgnoreInfo=!!sc.Number;
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}
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// Ignore anything unknows
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sc.Close();
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Loads the scripts for the current map
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// Initializes all FS data
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//
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//-----------------------------------------------------------------------------
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bool FScriptLoader::ParseInfo(MapData * map)
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{
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char *lump;
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char *rover;
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char *startofline;
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int lumpsize;
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bool fsglobal=false;
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FString scriptsrc;
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// Global initializazion if not done yet.
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static bool done=false;
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// Load the script lump
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IgnoreInfo = false;
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lumpsize = map->Size(0);
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if (lumpsize==0)
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{
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// Try a global FS lump
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int lumpnum=Wads.CheckNumForName("FSGLOBAL");
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if (lumpnum<0) return false;
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lumpsize=Wads.LumpLength(lumpnum);
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if (lumpsize==0) return false;
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fsglobal=true;
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lump=new char[lumpsize+3];
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Wads.ReadLump(lumpnum,lump);
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}
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else
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{
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lump=new char[lumpsize+3];
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map->Read(0, lump);
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}
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// Append a new line. The parser likes to crash when the last character is a valid token.
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lump[lumpsize]='\n';
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lump[lumpsize+1]='\r';
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lump[lumpsize+2]=0;
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lumpsize+=2;
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rover = startofline = lump;
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HasScripts=false;
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drownflag=-1;
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readtype = RT_OTHER;
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while(rover < lump+lumpsize)
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{
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if(*rover == '\n') // end of line
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{
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*rover = 0; // make it an end of string (0)
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if (!IgnoreInfo) ParseInfoCmd(startofline, scriptsrc);
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startofline = rover+1; // next line
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*rover = '\n'; // back to end of line
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}
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rover++;
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}
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if (HasScripts)
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{
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new DFraggleThinker;
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DFraggleThinker::ActiveThinker->LevelScript->data = copystring(scriptsrc.GetChars());
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if (drownflag==-1) drownflag = (level.maptype != MAPTYPE_DOOM || fsglobal);
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if (!drownflag) level.airsupply=0; // Legacy doesn't to water damage so we need to check if it has to be disabled here.
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FFsOptions *opt = level.info->GetOptData<FFsOptions>("fragglescript", false);
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if (opt != NULL)
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{
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DFraggleThinker::ActiveThinker->nocheckposition = opt->nocheckposition;
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}
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}
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delete[] lump;
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return HasScripts;
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}
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//-----------------------------------------------------------------------------
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//
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// Starts the level info parser
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// and patches the global linedef translation table
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//
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//-----------------------------------------------------------------------------
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void T_LoadScripts(MapData *map)
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{
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FScriptLoader parser;
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T_Init();
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bool HasScripts = parser.ParseInfo(map);
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// Hack for Legacy compatibility: Since 272 is normally an MBF sky transfer we have to patch it.
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// It could be done with an additional translator but that would be sub-optimal for the user.
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// To handle this the default translator defines the proper Legacy type at index 270.
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// This code then then swaps 270 and 272 - but only if this is either Doom or Heretic and
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// the default translator is being used.
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// Custom translators will not be patched.
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if ((gameinfo.gametype == GAME_Doom || gameinfo.gametype == GAME_Heretic) && level.info->Translator.IsEmpty() &&
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level.maptype == MAPTYPE_DOOM && SimpleLineTranslations.Size() > 272 && SimpleLineTranslations[272 - 2*HasScripts].special == FS_Execute)
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{
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FLineTrans t = SimpleLineTranslations[270];
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SimpleLineTranslations[270] = SimpleLineTranslations[272];
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SimpleLineTranslations[272] = t;
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}
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}
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//-----------------------------------------------------------------------------
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//
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// Adds an actor to the list of spawned things
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//
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//-----------------------------------------------------------------------------
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void T_AddSpawnedThing(AActor * ac)
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{
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if (DFraggleThinker::ActiveThinker)
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{
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TArray<TObjPtr<AActor> > &SpawnedThings = DFraggleThinker::ActiveThinker->SpawnedThings;
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SpawnedThings.Push(GC::ReadBarrier(ac));
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}
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}
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