CoD GSC extension for VS Code

This extension adds language support for the GSC scripts used in Call of Duty games.

⚠️ This extension is still under development and is not fully finished. Check the list of the available features in List of features.

Supported games

Game	Code	Modification	Status	Not working yet
CoD1	IW1	original	✅ Supported
CoD2	IW2	original	✅ Supported
CoD4	IW3	original	✅ Supported
CoD5	T4	original	✅ Supported
		Plutonium T4	❔
MW2	IW4	original	❗ Tested, errors	childthread, call
		Alterware IW4x	❔
BO1	T5	original	✅ Supported
		Plutonium T5	❔
MW3	IW5	original	❗ Tested, errors	childthread, call
		Plutonium IW5	❔
		Alterware IW5-Mod	❔
BO2	T6	original	❗ Tested, errors	#insert, #define, param default value, autoexec, const, %xxx::yyy, /@ comments @/
		Plutonium T6	❗ Tested, errors	order of file references
Ghosts	IW6	original	❔
		Alterware IW6-Mod	❔
AW	S1	original	❗ Tested, errors	childthread, call
		Alterware S1-Mod	❔
BO3	T7	original	🚫 Not supported	#using, #namespace, function, .gscc, .csc, .cscc
IW	IW7	original	❔
		Aurora IW7-mod	❔
CoD4:MWR	H1	original	❔
		Aurora H1-mod	❗ Tested, errors	param default value, call, childthread
WWII	S2	original	❔
BO4	T8	original	❔
MW	IW8	original	❔
BOCW	T9	original	❔
Vanguard	S3	original	❔
MWII	IW9	original	❔
MWIII	S4	original	❔
BO6	T10	original	❔

Change log

View changes

Features

Syntax highlighting

Completion items

Completion items - local functions

Completion items - included functions via #include

Completion items - with CoD2 MP functions

Completion items - variables

Completion items - variables with recognized variable type

Completion items - variables from included workspace folders

Diagnostics

Diagnostics - error messages

Diagnostics - invalid file for #include

Diagnostics - possible missing semicolon indication

Functions

Function - go to definition

Function - hover info

Function - hover info over CoD2 MP function spawn:

Function - hover over path

Function - references

Function - rename

Workspace folders

VSCode multi-root workspace can be used to "join" your mod folders as they get loaded into the game.

The order of how files are being searched is now determined by how the workspace folder appears in explorer tab. The last folder is searched first.

It can simulate your .IWD files - their file name determines which files gets loaded first in the game.

For example, this is typical setup:

• raw
• mod1
• mappack

From game perspective, it could represents these files:

• iw_00.iwd - iw15.iwd (original game files for CoD2)
• z_mod1.iwd
• zzz_mappack.iwd

The alphabetical order of .IWD is important to correctly replace original files. The order of the workspace folders must be the same!

Code actions

Code actions - include folder for file references

Code actions - ignore missing files

GSC Files

Visualization of replaced (unreachable) files.

When GSC file is replaced by another GSC file in multi-root workspace because of the same game path, the code in text editor is shown as semi-transparent (unreachable code)
Example:

Other

Status bar

Allows quickly change the targeted game or open settings.

Side panel

GSC side panel with "Workspace", "File" and "Other" views. It shows information about workspace setup, parsed GSC files and available commands to run. In future version it will allow to change settings more interactively.

List of features

• GSC file parser
  • Syntax parser
    • Comments (/*...*/, //...)
    • Developer blocks (/# ... #/)
    • Preprocessor (#include, #using_animtree, #animtree)
    • Keywords (return, if, else, for, foreach, while, do-while, switch, continue, break, case, default, thread, wait, waittillframeend, waittill, waittillmatch, endon, notify, breakpoint)
    • Operators (=, +=, -=, *=, /=, %=, |=, &=, ^=, ++, --, +, -, *, /, %, |, &, ^, <<, >>, ==, !=, <, >, <=, >=, &&, ||, !, ~)
    • Strings ("default", &"STRING_LOCALIZED", #"sv_cvar_string")
    • Ternary conditional operators (true ? "yes" : "no")
    • Anim string (%xanim_file_name)
    • Path (eg. maps\mp\gametypes\sd)
  • Detection of explicitly typed types of variables (string, localized string, cvar string, vector, integer, float, structure, array, function, entity, bool, xanim)
• Completion item provider (auto-suggestion)
  • Variables (local to function, global level and game)
  • Constants
  • Keywords
  • File path
  • Function definitions
• Diagnostics (errors and warnings)
  • Syntax error
    • Unexpected tokens
    • Missing semicolons
  • Extra semicolons
  • Invalid function parameters
  • Missing files
  • Invalid numbers of function parameters
• Semantics token provider
  • Proper colorization of tokens
• Definition and Reference provider
  • Local functions (funcName())
  • External functions (maps\mp\gametypes\file::funcName())
  • Included functions (via #include)
• Hover provider
  • Function info
  • Path info
• Code action provider
  • Adding missing files into ignored list
  • Adding undefined functions into ignored list
• Rename provider
  • Function rename

TODO list

Priority

• Add custom global include list of GSC function
• Support for default function parameter value - supported in newer COD games
• Support for 'chilthread' and 'call' keywords - supported in newer COD games
• Improve auto-suggestion for files
• When renaming GSC file, ask for reference update in other GSC files

Non priority

• Code action - implement unknown function
• Add .csc files (client side scripts)
• Parser for .menu files
• Integrate list of built-in functions for CoD4
• Improve detection of variable types - now it's detected only by explicitly assigned constant value
• Show available string constants for notify waittill waittillmatch endon in completion item provider
• Check for unreachable code
• Implement "Go to definition" for variables
• Implement some kind of JSDoc comments to improve function and variable description
• Implement rename variable functionality
• Detection of undefined variables

Install

This extension is available through Visual Studio Marketplace.

Support

Please test this extension in vscode on your GSC files and report bugs / suggestions on the github page or on discord KILLTUBE #vscode-cod-gsc