gzdoom-gles/src/fragglescript/t_load.cpp

364 lines
9.8 KiB
C++

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