- extended Doom map format linedef translator so that it also handles the flags.

SVN r1992 (trunk)

docs/rh-log.txt

@@ -1,3 +1,6 @@
+November 22, 2009  (Changes by Graf Zahl)
+- extended Doom map format linedef translator so that it also handles the flags.
+
 November 19, 2009
 - Replaced toint/quickertoint with the portable routines from xs_Float.h. The
   former used fistp, which is not portable across platforms, so cannot be

src/p_xlat.cpp

@@ -68,38 +68,35 @@ void P_TranslateLineDef (line_t *ld, maplinedef_t *mld)
 	DWORD flags = LittleShort(mld->flags);
 	INTBOOL passthrough;
 
-	if (flags & ML_TRANSLUCENT_STRIFE)
+	DWORD flags1 = flags;
+	DWORD newflags = 0;
+
+	for(int i=0;i<16;i++)
 	{
-		ld->Alpha = FRACUNIT*3/4;
-	}
-	if (gameinfo.gametype == GAME_Strife)
-	{
-		if (flags & ML_RAILING_STRIFE)
+		if ((flags & (1<<i)) && LineFlagTranslations[i].ismask)
 		{
-			flags |= ML_RAILING;
+			flags1 &= LineFlagTranslations[i].newvalue;
 		}
-		if (flags & ML_BLOCK_FLOATERS_STRIFE)
-		{
-			flags |= ML_BLOCK_FLOATERS;
-		}
-		passthrough = 0;
 	}
-	else
+	for(int i=0;i<16;i++)
 	{
-		if (gameinfo.gametype & GAME_DoomChex)
+		if ((flags1 & (1<<i)) && !LineFlagTranslations[i].ismask)
 		{
-			if (flags & ML_RESERVED_ETERNITY)
+			switch (LineFlagTranslations[i].newvalue)
 			{
-				flags &= 0x1FF;
+			case -1:
+				passthrough = true;
+				break;
+			case -2:
+				ld->Alpha = FRACUNIT*3/4;
+				break;
+			default:
+				newflags |= LineFlagTranslations[i].newvalue;
+				break;
 			}
 		}
-		if (flags & ML_3DMIDTEX_ETERNITY)
-		{
-			flags |= ML_3DMIDTEX;
-		}
-		passthrough = (flags & ML_PASSUSE_BOOM);
 	}
-	flags = flags & 0xFFFF01FF;	// Ignore flags unknown to DOOM
+	flags = newflags;
 
 	// For purposes of maintaining BOOM compatibility, each
 	// line also needs to have its ID set to the same as its tag.

src/xlat/parse_xlat.cpp

@@ -61,6 +61,7 @@ FBoomTranslator Boomish[MAX_BOOMISH];
 int NumBoomish;
 TAutoGrowArray<FSectorTrans> SectorTranslations;
 TArray<FSectorMask> SectorMasks;
+FLineFlagTrans LineFlagTranslations[16];
 
 
 struct SpecialArgs
@@ -112,13 +113,13 @@ struct XlatParseContext : public FParseContext
 		static const char *tokens[] =
 		{
 			"arg2", "arg3", "arg4", "arg5", "bitmask", "clear",
-			"define", "enum", "flags", "include", "lineid", 
+			"define", "enum", "flags", "include", "lineflag", "lineid", 
 			"maxlinespecial", "nobitmask", "sector", "tag"
 		};
 		static const short types[] =
 		{
 			XLAT_ARG2, XLAT_ARG3, XLAT_ARG4, XLAT_ARG5, XLAT_BITMASK, XLAT_CLEAR,
-			XLAT_DEFINE, XLAT_ENUM, XLAT_FLAGS, XLAT_INCLUDE, XLAT_TAG,
+			XLAT_DEFINE, XLAT_ENUM, XLAT_FLAGS, XLAT_INCLUDE, XLAT_LINEFLAG, XLAT_TAG,
 			XLAT_MAXLINESPECIAL, XLAT_NOBITMASK, XLAT_SECTOR, XLAT_TAG
 		};
 

src/xlat/xlat.h

@@ -80,10 +80,18 @@ struct FSectorMask
 	int shift;
 };
 
+struct FLineFlagTrans
+{
+	int newvalue;
+	bool ismask;
+};
+
+
 extern TAutoGrowArray<FLineTrans> SimpleLineTranslations;
 extern FBoomTranslator Boomish[MAX_BOOMISH];
 extern int NumBoomish;
 extern TAutoGrowArray<FSectorTrans> SectorTranslations;
 extern TArray<FSectorMask> SectorMasks;
+extern FLineFlagTrans LineFlagTranslations[16];
 
 #endif

src/xlat/xlat_parser.y

@@ -17,6 +17,7 @@ external_declaration ::= enum_statement.
 external_declaration ::= linetype_declaration.
 external_declaration ::= boom_declaration.
 external_declaration ::= sector_declaration.
+external_declaration ::= lineflag_declaration.
 external_declaration ::= sector_bitmask.
 external_declaration ::= maxlinespecial_def.
 external_declaration ::= NOP.
@@ -512,3 +513,22 @@ sector_bitmask ::= SECTOR BITMASK exp(mask) CLEAR SEMICOLON.
 sector_op(A) ::= LSHASSIGN.		{ A = 1; }
 sector_op(A) ::= RSHASSIGN.		{ A = -1; }
 
+%type lineflag_op {int}
+
+lineflag_declaration ::= LINEFLAG exp(from) EQUALS exp(to) SEMICOLON.
+{
+	if (from >= 0 && from < 16)
+	{
+		LineFlagTranslations[from].newvalue = to;
+		LineFlagTranslations[from].ismask = false;
+	}
+}
+
+lineflag_declaration ::= LINEFLAG exp(from) AND exp(mask) SEMICOLON.
+{
+	if (from >= 0 && from < 16)
+	{
+		LineFlagTranslations[from].newvalue = mask;
+		LineFlagTranslations[from].ismask = true;
+	}
+}

wadsrc/static/xlat/defines.i

@@ -209,3 +209,34 @@ define FRICTION_MASK (0x0800)
 define PUSH_MASK (0x1000)
 
 
+enum
+{
+	ML_BLOCKING					= 0x00000001,
+	ML_BLOCKMONSTERS			= 0x00000002,
+	ML_TWOSIDED					= 0x00000004,
+	ML_DONTPEGTOP				= 0x00000008,
+	ML_DONTPEGBOTTOM			= 0x00000010,
+	ML_SECRET					= 0x00000020,
+	ML_SOUNDBLOCK				= 0x00000040,
+	ML_DONTDRAW 				= 0x00000080,
+	ML_MAPPED					= 0x00000100,
+
+	// Extended flags
+	ML_MONSTERSCANACTIVATE		= 0x00002000,
+	ML_BLOCK_PLAYERS			= 0x00004000,
+	ML_BLOCKEVERYTHING			= 0x00008000,
+	ML_ZONEBOUNDARY				= 0x00010000,
+	ML_RAILING					= 0x00020000,
+	ML_BLOCK_FLOATERS			= 0x00040000,
+	ML_CLIP_MIDTEX				= 0x00080000,
+	ML_WRAP_MIDTEX				= 0x00100000,
+	ML_3DMIDTEX					= 0x00200000,
+	ML_CHECKSWITCHRANGE			= 0x00400000,
+	ML_FIRSTSIDEONLY			= 0x00800000,
+	ML_BLOCKPROJECTILE			= 0x01000000,
+	ML_BLOCKUSE					= 0x02000000,
+	
+	// 
+	ML_PASSTHROUGH				= -1,
+	ML_TRANSLUCENT				= -2
+}

wadsrc/static/xlat/doom.txt

@@ -28,3 +28,15 @@ sector 22 = LightSequenceStart;
 sector 23 = LightSequenceSpecial1;
 sector 24 =	LightSequenceSpecial2;
 
+lineflag 0 = ML_BLOCKING;
+lineflag 1 = ML_BLOCKMONSTERS;
+lineflag 2 = ML_TWOSIDED;
+lineflag 3 = ML_DONTPEGTOP;
+lineflag 4 = ML_DONTPEGBOTTOM;
+lineflag 5 = ML_SECRET;
+lineflag 6 = ML_SOUNDBLOCK;
+lineflag 7 = ML_DONTDRAW;
+lineflag 8 = ML_MAPPED;
+lineflag 9 = ML_PASSTHROUGH;
+lineflag 10 = ML_3DMIDTEX;
+lineflag 11 & (ML_BLOCKING|ML_BLOCKMONSTERS|ML_TWOSIDED|ML_DONTPEGTOP|ML_DONTPEGBOTTOM|ML_SECRET|ML_SOUNDBLOCK|ML_DONTDRAW|ML_MAPPED);

wadsrc/static/xlat/heretic.txt

@@ -65,3 +65,14 @@ sector 50 =	Wind_West_Medium;
 sector 51 =	Wind_West_Strong;
 
 
+lineflag 0 = ML_BLOCKING;
+lineflag 1 = ML_BLOCKMONSTERS;
+lineflag 2 = ML_TWOSIDED;
+lineflag 3 = ML_DONTPEGTOP;
+lineflag 4 = ML_DONTPEGBOTTOM;
+lineflag 5 = ML_SECRET;
+lineflag 6 = ML_SOUNDBLOCK;
+lineflag 7 = ML_DONTDRAW;
+lineflag 8 = ML_MAPPED;
+lineflag 9 = ML_PASSTHROUGH;
+lineflag 10 = ML_3DMIDTEX;

wadsrc/static/xlat/strife.txt

@@ -352,3 +352,16 @@ sector 23 = LightSequenceSpecial1;
 sector 24 =	LightSequenceSpecial2;
 
 
+lineflag 0 = ML_BLOCKING;
+lineflag 1 = ML_BLOCKMONSTERS;
+lineflag 2 = ML_TWOSIDED;
+lineflag 3 = ML_DONTPEGTOP;
+lineflag 4 = ML_DONTPEGBOTTOM;
+lineflag 5 = ML_SECRET;
+lineflag 6 = ML_SOUNDBLOCK;
+lineflag 7 = ML_DONTDRAW;
+lineflag 8 = ML_MAPPED;
+lineflag 9 = ML_RAILING;
+lineflag 10 = ML_BLOCK_FLOATERS;
+lineflag 12 = ML_TRANSLUCENT;
+