diff --git a/Cargo.lock b/Cargo.lock
index b9d2ecc..da6de95 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -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",
+]
+
+[[package]]
+name = "itoa"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
+
+[[package]]
+name = "memchr"
+version = "2.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.94"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a31971752e70b8b2686d7e46ec17fb38dad4051d94024c88df49b667caea9c84"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "ryu"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
+
+[[package]]
+name = "serde"
+version = "1.0.219"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.219"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.140"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.100"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.18"
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diff --git a/Cargo.toml b/Cargo.toml
index 4499b17..27249a2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,4 +6,7 @@ edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[target.x86_64-pc-windows-gnu]
-linker = "x86_64-w64-mingw32-gcc"
\ No newline at end of file
+linker = "x86_64-w64-mingw32-gcc"
+
+[dependencies]
+serde_json = "1.0.140"
diff --git a/src/main.rs b/src/main.rs
index 92cf60a..c3d3666 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -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();
+ 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])?;
+
+ 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).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);
+ 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 {}", cur_folder);
+ println!("ClientSettings folder already exists in {}", path.display());
}
- let cas_json = format!("{}\\ClientAppSettings.json", cs_folder);
- fs::write(cas_json, fflag_contents).ok();
- println!("Wrote ClientAppSettings.json to {}", cur_folder)
+
+ let settings_file = client_settings_dir.join("ClientAppSettings.json");
+ update_settings_file(&settings_file, &required_settings)?;
+ println!("Updated ClientAppSettings.json in {}", path.display());
}
}
}
- println!("Press enter to exit");
- let _ = io::stdin().read(&mut [0u8]).unwrap();
+
+ 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(())
+}
\ No newline at end of file