Grpinfo

grpinfo { [...]}

Grpinfo is a special token that declares a custom game GRP. If defined properly, the corresponding package can be selected and loaded in the eduke32 startup window.

Unlike other DEF tokens, each grpinfo token must be defined in a separate file with a "*.grpinfo" extension. Each file corresponds to a single game package to be loaded by eduke32.

Tokens

name <name>

Required token. Defines the title of the GRP file that will be displayed in the eduke32 startup window.

scriptname <game.con>

Optional token. Defines the path to the main CON file (GAME.CON replacement) for this GRP package.

defname <duke3d.def>

Optional token. Defines the path to the main DEF file for this GRP.

rtsname <duke.rts>

Optional token. Defines the path to the main RTS WAD file.

size <grp_size>

Required token. This token is the size of the GRP in bytes, and is required to identify the GRP to be loaded when this item is selected in the startup window.

crc <crc32_value>

Required token. This token is the CRC32 checksum of the GRP package, and is required to identify the GRP to be loaded when this item is selected in the startup window.

dependency <crc32_value>

Optional token. If this grpinfo definition defines an addon to an existing GRP (in the same vein as Duke Caribbean or Nuclear Winter), this token is the CRC32 checksum of the GRP that needs to be loaded first.

The GRP package can then only be loaded if the specified dependency is also present, and the dependency will automatically be loaded first.

flags <bitfield>

Optional token. Defines a bitfield of flags that should be set when this GRP is loaded, see below.

Grpinfo Flags

The following values are game flags to be used within the grpinfo definition.

Exposed	Value	Label	Description
Yes	1	GAMEFLAG_DUKE	Enables Duke3D-specific behavior in the engine.
Yes	2	GAMEFLAG_NAM	Enables NAM-specific behavior in the engine, e.g. cheat names.
Yes	4	GAMEFLAG_NAPALM	Enables NAPALM-specific behavior in the engine, e.g. differences in default RTS file naming.
Yes	8	GAMEFLAG_WW2GI	Enables WW2GI-specific behavior in the engine, for example, player weapon code differences.
Yes	16	GAMEFLAG_ADDON	Designates that the GRP is an addon, to be loaded together with another GRP. Currently does not affect behavior.
No	32	GAMEFLAG_SHAREWARE	Enables Duke3D shareware-specific behavior in the engine. For example, preventing the access to episodes 2 and 3, showing ordering splash screens on exit, etc.
No	64	GAMEFLAG_DUKEBETA	Enables 0.99 beta specific behavior in the engine, mainly some quote differences.
No	128	GAMEFLAG_FURY	Enables Ion Fury specific behavior in the engine. This includes many, many changes to override Duke3D default behaviors.
No	256	GAMEFLAG_STANDALONE	Intended GRPs that are not based on Duke3D -- also used for Ion Fury. However, currently does not affect any behavior.
No	512	GAMEFLAG_NOCLASSIC	Removes the "Classic" renderer option from the display menu if set.
No	1024	GAMEFLAG_NOPOLYMER	Removes the "Polymer" renderer option from the display menu if set.

Defines

define GAMEFLAG_DUKE 0x00000001 define GAMEFLAG_NAM 0x00000002 define GAMEFLAG_NAPALM 0x00000004 define GAMEFLAG_WW2GI 0x00000008 define GAMEFLAG_ADDON 0x00000010 define GAMEFLAG_SHAREWARE 0x00000020 define GAMEFLAG_DUKEBETA 0x00000060 // includes 0x20 since it's a shareware beta define GAMEFLAG_FURY 0x00000080 define GAMEFLAG_STANDALONE 0x00000100 define GAMEFLAG_NOCLASSIC 0x00000200 define GAMEFLAG_NOPOLYMER 0x00000400

Predefined Dependency CRC32 Values

The following values are predefined CRC32 values in eduke32, that can be used within the grpinfo definition for the dependency token.

Exposed	Value	Label	Description
Yes	0x982AFE4A	DUKEWT_CRC	Duke Nukem 3D: Atomic Edition (World Tour)
Yes	0xFD3DCFF1	DUKE15_CRC	Duke Nukem 3D: Atomic Edition (1.5)
Yes	0xF514A6AC	DUKEPP_CRC	Duke Nukem 3D: Plutonium Pak
Yes	0xBBC9CE44	DUKE13_CRC	Duke Nukem 3D (1.3d)
No	0xAA4F6A40	DUKEKR_CRC	Duke Nukem 3D (South Korean Censored)
No	0x02F18900	DUKE099_CRC	Duke Nukem 3D Shareware 0.99
No	0xA28AA589	DUKE10_CRC	Duke Nukem 3D Shareware 1.0
No	0x912E1E8D	DUKE11_CRC	Duke Nukem 3D Shareware 1.1
No	0x983AD923	DUKESW_CRC	Duke Nukem 3D Shareware 1.3D
No	0xC5F71561	DUKEMD_CRC	Duke Nukem 3D Mac Demo
No	0x73A15EE7	DUKEMD2_CRC	Duke Nukem 3D MacUser Demo
Yes	0xA9242158	DUKEDC13_CRC	Duke it out in D.C. (1.3D)
Yes	0xB79D997F	DUKEDCPP_CRC	Duke it out in D.C. (Plutonium Pack)
Yes	0xA8CF80DA	DUKEDC_CRC	Duke it out in D.C. (Megaton)
No	0x39A692BF	-	Duke it out in D.C. (Zoom Platform)
No	0xC63B6A8B	-	Duke it out in D.C. (Crash Fix)
Yes	0x4A2DBB62	VACA13_CRC	Duke Caribbean: Life's a Beach (1.3D)
Yes	0x2F4FCCEE	VACAPP_CRC	Duke Caribbean: Life's a Beach (Plutonium Pak)
Yes	0xB62B42FD	VACA15_CRC	Duke Caribbean: Life's a Beach (1.5)
Yes	0x18F01C5B	DUKECB_CRC	Duke Caribbean: Life's a Beach (Megaton)
No	0x65B5F690	-	Duke Caribbean: Life's a Beach (Zoom Platform)
No	0x64CF2351	-	Duke Caribbean: Life's a Beach (Crash Fix)
Yes	0xF1CAE8E4	DUKENW_CRC	Duke: Nuclear Winter (Megaton)
No	0xC7EFBFA9	-	Duke: Nuclear Winter Demo
Yes	0x82C1B47F	DZ2_13_CRC	Duke!ZONE II (1.3D)
Yes	0x7FB6117C	DZ2_PP_CRC	Duke!ZONE II (Plutonium Pak)
No	0x1E9516F1	-	Duke!ZONE II (Zoom Platform)
No	0x7CD82A3B	-	Duke Nukem's Penthouse Paradise
No	0xCF928A58	-	Duke Nukem's Penthouse Paradise
Yes	0x75C1F07B	NAM_CRC	NAM
Yes	0x3DE1589A	NAPALM_CRC	NAPALM
Yes	0x907B82BF	WW2GI_CRC	WWII GI
No	0xD1ED8C0C	PLATOONL_CRC	Platoon Leader

Defines

define DUKE13_CRC 0xBBC9CE44 define DUKEKR_CRC 0xAA4F6A40 define DUKE15_CRC 0xFD3DCFF1 define DUKEPP_CRC 0xF514A6AC define DUKEWT_CRC 0x982AFE4A define DUKE099_CRC 0x02F18900 define DUKE10_CRC 0xA28AA589 define DUKE11_CRC 0x912E1E8D define DUKESW_CRC 0x983AD923 define DUKEMD_CRC 0xC5F71561 define DUKEMD2_CRC 0x73A15EE7 define DUKEDC13_CRC 0xA9242158 define DUKEDCPP_CRC 0xB79D997F define DUKEDC_CRC 0xA8CF80DA define VACA13_CRC 0x4A2DBB62 define VACAPP_CRC 0x2F4FCCEE define VACA15_CRC 0xB62B42FD define DUKECB_CRC 0x18F01C5B define DUKENW_CRC 0xF1CAE8E4 define DZ2_13_CRC 0x82C1B47F define DZ2_PP_CRC 0x7FB6117C define NAM_CRC 0x75C1F07B define NAPALM_CRC 0x3DE1589A define WW2GI_CRC 0x907B82BF define PLATOONL_CRC 0xD1ED8C0C

Examples

The following is the grpinfo used by Ion Fury: Aftershock. It is stored in a file called "fury.grpinfo", which is placed on the same path as the binary.

grpinfo
{
   name "Ion Fury: Aftershock"
   scriptname "scripts/main.con"
   defname "ashock.def"
   size 160826590
   crc 0xE175FB41
   flags 1664
   dependency 0
}