tommy/alt_enter_fix
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The Rewrite: Rustification
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tommy 2025-03-14 14:24:29 -04:00
parent 8740c41a63
commit fd3863c0d4
Signed by: tommy
GPG Key ID: 2FF3C74CA05A76E8
3 changed files with 234 additions and 53 deletions
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90
Cargo.lock generated
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@ -1,7 +1,95 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
version = 4
[[package]]
name = "alt_enter_fix"
version = "0.1.0"
dependencies = [
"serde_json",
]
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3
Cargo.toml
View File

@ -7,3 +7,6 @@ edition = "2021"
[target.x86_64-pc-windows-gnu]
linker = "x86_64-w64-mingw32-gcc"
[dependencies]
serde_json = "1.0.140"

202
src/main.rs
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@ -1,60 +1,150 @@
use std::{env, fs, io::{self, stdin, Read, Write}, path::Path};
fn main() {
let mut rblxpath = String::new();
if let Some(lad) = env::var("LOCALAPPDATA").ok() {
let temprbx_lad = format!("{}\\Roblox", lad);
if Path::new(&temprbx_lad).is_dir() {
rblxpath = temprbx_lad;
}
} else if let Some(pfx86) = env::var("ProgramFiles(x86)").ok() {
let temprbx_pfx86 = format!("{}\\Roblox", pfx86);
if Path::new(&temprbx_pfx86).is_dir() {
rblxpath = temprbx_pfx86;
}
}
if rblxpath != "" {
println!("Found path: {}", rblxpath);
} else {
use serde_json::{json, Value};
use std::{env, fs, io::{self, stdin, Read, Write}, path::{Path, PathBuf}};
const UNLIMITED_FPS_CAP_NUM: i32 = i32::max_value();
fn main() -> io::Result<()> {
let roblox_path = find_roblox_path().ok_or_else(|| {
println!("Roblox not found (Die)");
return;
}
io::Error::new(io::ErrorKind::NotFound, "Roblox installation not found")
})?;
println!("Found path: {}", roblox_path.display());
println!("What FPS would you like to cap the fps to? (0 for no cap at all)");
let _ = io::stdout().flush();
let mut input = String::new();
stdin().read_line(&mut input).expect("invalid input, try again");
if let Some('\n')=input.chars().next_back() {
input.pop();
}
if let Some('\r')=input.chars().next_back() {
input.pop();
}
let fps = input.parse::<i32>().unwrap();
let desired_fps = match fps {
0 => 5588562,
_ => fps
};
println!("fps cap will be set to {desired_fps}");
let just_make_this_work = format!("{{\"FFlagHandleAltEnterFullscreenManually\":\"False\",\"DFIntTaskSchedulerTargetFps\":{desired_fps},\"FFlagEnableInGameMenuChromeABTest3\":\"False\",\"FFlagGameBasicSettingsFramerateCap5\":\"False\",\"FFlagTaskSchedulerLimitTargetFpsTo2402\":\"False\"}}");
let fflag_contents = just_make_this_work.as_str();
let versions = format!("{}\\Versions\\", rblxpath);
for folder in fs::read_dir(versions).unwrap() {
let cur_folder = folder.unwrap().path().display().to_string();
if cur_folder.to_lowercase().contains("version") {
let executable = format!("{}\\RobloxPlayerBeta.exe", cur_folder);
if Path::new(&executable).is_file() {
let cs_folder = format!("{}\\ClientSettings", cur_folder);
if !Path::new(&cs_folder).is_dir() {
fs::create_dir(&cs_folder).ok();
println!("Created ClientSettings folder in {}", cur_folder);
} else {
println!("ClientSettings folder already exists in {}", cur_folder);
}
let cas_json = format!("{}\\ClientAppSettings.json", cs_folder);
fs::write(cas_json, fflag_contents).ok();
println!("Wrote ClientAppSettings.json to {}", cur_folder)
}
}
}
io::stdout().flush()?;
let fps = read_fps_input()?;
let desired_fps = if fps == 0 { UNLIMITED_FPS_CAP_NUM } else { fps };
println!("FPS cap will be set to {desired_fps}");
let required_settings = json!({
// Restore original 'alt-enter' behaviour
"FFlagHandleAltEnterFullscreenManually": "False",
// Disable Roblox's built-in 240 fps hard-coded cap and replace with custom cap
"DFIntTaskSchedulerTargetFps": desired_fps,
"FFlagGameBasicSettingsFramerateCap5": "False",
"FFlagTaskSchedulerLimitTargetFpsTo2402": "False",
// Ensure Direct3D11 is the rendering API for optimal performance
"FFlagDebugGraphicsDisableDirect3D11": "False",
"FFlagDebugGraphicsPreferD3D11": "True",
// Disable telemetry related FFlags
"FFlagDebugDisableTelemetryEphemeralCounter": "True",
"FFlagDebugDisableTelemetryEphemeralStat": "True",
"FFlagDebugDisableTelemetryEventIngest": "True",
"FFlagDebugDisableTelemetryPoint": "True",
"FFlagDebugDisableTelemetryV2Counter": "True",
"FFlagDebugDisableTelemetryV2Event": "True",
"FFlagDebugDisableTelemetryV2Stat": "True"
});
update_client_settings(&roblox_path, required_settings)?;
println!("Press enter to exit");
let _ = io::stdin().read(&mut [0u8]).unwrap();
let _ = io::stdin().read(&mut [0u8])?;
Ok(())
}
fn find_roblox_path() -> Option<PathBuf> {
if let Some(local_app_data) = env::var("LOCALAPPDATA").ok() {
let path = PathBuf::from(local_app_data).join("Roblox");
if path.is_dir() {
return Some(path);
}
}
// This is here because Roblox installs into Program Files (x86) if you run the installer as administrator (??? lol)
if let Some(program_files) = env::var("ProgramFiles(x86)").ok() {
let path = PathBuf::from(program_files).join("Roblox");
if path.is_dir() {
return Some(path);
}
}
None
}
fn read_fps_input() -> io::Result<i32> {
let mut input = String::new();
stdin().read_line(&mut input)?;
let input = input.trim();
input.parse::<i32>().map_err(|_| {
io::Error::new(io::ErrorKind::InvalidInput, "Invalid FPS value")
})
}
fn update_client_settings(roblox_path: &Path, required_settings: Value) -> io::Result<()> {
let versions_path = roblox_path.join("Versions");
for entry in fs::read_dir(versions_path)? {
let entry = entry?;
let path = entry.path();
let path_str = path.to_string_lossy().to_lowercase();
if path_str.contains("version") {
let executable = path.join("RobloxPlayerBeta.exe");
if executable.is_file() {
let client_settings_dir = path.join("ClientSettings");
if !client_settings_dir.exists() {
fs::create_dir(&client_settings_dir)?;
println!("Created ClientSettings folder in {}", path.display());
} else {
println!("ClientSettings folder already exists in {}", path.display());
}
let settings_file = client_settings_dir.join("ClientAppSettings.json");
update_settings_file(&settings_file, &required_settings)?;
println!("Updated ClientAppSettings.json in {}", path.display());
}
}
}
Ok(())
}
fn update_settings_file(file_path: &Path, required_settings: &Value) -> io::Result<()> {
// Funky code to edit or create the ClientAppSettings.json file (shoutout claude for the help with the object stuff (json sucks))
let mut settings = if file_path.exists() {
match fs::read_to_string(file_path) {
Ok(content) if !content.trim().is_empty() => {
match serde_json::from_str::<Value>(&content) {
Ok(existing) => existing,
Err(e) => {
println!("Warning: Could not parse existing settings ({}), creating new file", e);
json!({})
}
}
},
_ => json!({})
}
} else {
json!({})
};
if let Some(required_obj) = required_settings.as_object() {
if !settings.is_object() {
settings = json!({});
}
if let Some(settings_obj) = settings.as_object_mut() {
for (key, value) in required_obj {
println!("Adding {}: {}", key, value);
settings_obj.insert(key.clone(), value.clone());
}
}
}
let formatted = serde_json::to_string_pretty(&settings)?;
fs::write(file_path, formatted)?;
Ok(())
}