diff --git a/launcher/Cargo.toml b/launcher/Cargo.toml
index f010405..dfcd83b 100644
--- a/launcher/Cargo.toml
+++ b/launcher/Cargo.toml
@@ -4,5 +4,9 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+dirs = "5.0.1"
+flate2 = "1.0.30"
 serde_json = "1.0.117"
 suppaftp = { version = "6.0.1", features = ["native-tls"] }
+tar = "0.4.41"
+zip-extract = "0.1.3"
diff --git a/launcher/src/ftp.rs b/launcher/src/ftp.rs
index ca4f95c..ea1d263 100644
--- a/launcher/src/ftp.rs
+++ b/launcher/src/ftp.rs
@@ -1,3 +1,6 @@
+use std::io::Write;
+use std::path::PathBuf;
+
 use suppaftp::FtpError;
 use suppaftp::NativeTlsFtpStream;
 use suppaftp::NativeTlsConnector;
@@ -5,7 +8,12 @@ use suppaftp::native_tls::Certificate;
 use suppaftp::native_tls::TlsConnector;
 
 
-fn ftpConnection() -> Result<NativeTlsFtpStream, FtpError>{
+fn ftp_connection_anonymous() -> Result<NativeTlsFtpStream, FtpError>{
+    ftp_connection("anonymous", "anonymous@")
+}
+
+
+fn ftp_connection(username: &str, password: &str) -> Result<NativeTlsFtpStream, FtpError>{
     let ftp_stream = NativeTlsFtpStream::connect("gitea.piwalker.net:21").unwrap_or_else(|err|
         panic!("{}", err)
     );
@@ -16,3 +24,33 @@ fn ftpConnection() -> Result<NativeTlsFtpStream, FtpError>{
 }
 
 
+pub fn ftp_retr(file: PathBuf , mut writer: impl Write, mut callback: impl FnMut(usize)) -> Result<bool, FtpError> {
+    let mut ftp_stream = ftp_connection_anonymous().unwrap();
+    let file = file.to_str().unwrap().replace("\\", "/");
+    let size = ftp_stream.size(&file)?;
+    let mut total = 0;
+    ftp_stream.retr(file.as_str(), |stream| {
+        let mut tx_bytes = [0u8; 1500];
+        loop {
+            let bytes_read = stream.read(&mut tx_bytes).unwrap();
+            writer.write_all(&mut tx_bytes.split_at(bytes_read).0).unwrap();
+            total += bytes_read;
+            if total == size || bytes_read == 0 {
+                break;
+            }else{
+                callback(bytes_read);
+            }
+        }
+        Ok(true)
+    })?;
+    Ok(true)
+ 
+}
+
+pub fn ftp_get_size(file: PathBuf) -> Result<usize, FtpError> {
+    let mut stream = ftp_connection_anonymous()?;
+    stream.size(file.to_str().unwrap().replace("\\", "/"))
+}
+
+
+
diff --git a/launcher/src/java.rs b/launcher/src/java.rs
new file mode 100644
index 0000000..7c9be22
--- /dev/null
+++ b/launcher/src/java.rs
@@ -0,0 +1,54 @@
+use std::env;
+use std::io::{Cursor, Seek, Read};
+use std::path::{Components, Path, PathBuf};
+use flate2::read::GzDecoder;
+use tar::Archive;
+
+
+use crate::system_dirs::get_local_data_directory;
+use crate::ftp::{self, ftp_get_size};
+use crate::util;
+
+fn check_java(version: u8) -> bool {
+    let dir = get_local_data_directory().join("java").join(format!("java-{}-{}", version, if env::consts::OS == "windows" { "win" } else {"lin"}));
+    dir.exists()
+}
+
+pub fn install_java(version: u8) {
+    if check_java(version) {
+        return;
+    }
+    let ftp_dir = PathBuf::new().join("java").join(format!("java-{}-{}", version, if env::consts::OS == "windows" { "win.zip" } else {"lin.tar.gz"}));
+    let mut buff = Cursor::new(vec![]);
+    let mut total: usize = 0;
+    let size = ftp_get_size(ftp_dir.clone()).unwrap();
+    ftp::ftp_retr(ftp_dir, &mut buff, |data| util::download_callback(data, &mut total, size)).unwrap();
+
+    std::fs::create_dir_all(get_local_data_directory().join("java").join(format!("java-{}-{}", version, if env::consts::OS == "windows" { "win" } else {"lin"}))).unwrap();
+    buff.rewind().unwrap();
+    if env::consts::OS != "windows" {
+        let tar = GzDecoder::new(buff);
+        let mut archive = Archive::new(tar);
+        if !unpack_archive(archive, get_local_data_directory().join("java").join(format!("java-{}-lin", version))).is_ok() {
+            std::fs::remove_dir_all(get_local_data_directory().join("java").join(format!("java-{}-lin", version))).unwrap();
+        }
+    } else {
+        if !zip_extract::extract(buff, get_local_data_directory().join("java").join(format!("java-{}-win", version)).as_path(), true).is_ok() {
+            std::fs::remove_dir_all(get_local_data_directory().join("java").join(format!("java-{}-win", version))).unwrap();
+        }
+    }
+
+}
+
+fn unpack_archive<T: Read>(mut archive: Archive<T>, dst: PathBuf) -> Result<(), Box<dyn std::error::Error>> {
+    for file in archive.entries()? {
+        let path = PathBuf::new().join(dst.clone());
+        let mut file = file?;
+        let file_path = file.path()?;
+        let mut file_path = file_path.components();
+        let _ = file_path.next();
+        let file_path = file_path.as_path();
+        file.unpack(path.join(file_path))?;
+    }
+    Ok(())
+}
diff --git a/launcher/src/main.rs b/launcher/src/main.rs
index f6bb127..2734a18 100644
--- a/launcher/src/main.rs
+++ b/launcher/src/main.rs
@@ -1,37 +1,32 @@
 use std::fs::File;
-use std::io::{Read, Write};
+use std::io::{Cursor, Read, Seek, Write};
 use std::env::temp_dir;
-use std::path::Path;
+use std::path::{Path, PathBuf};
 use serde_json::{Result, Value};
-
-use suppaftp::{FtpError, NativeTlsConnector, NativeTlsFtpStream};
-use suppaftp::native_tls::{Certificate, TlsConnector};
+use std::process::Command;
+use std::process::Child;
 
 mod ftp;
+mod prism;
+mod system_dirs;
+mod java;
+mod util;
+
 
 fn main() {
-    println!("test");
-    let ftp_stream = NativeTlsFtpStream::connect("gitea.piwalker.net:21").unwrap_or_else(|err|
-        panic!("{}", err)
-    );
-    let cert = include_bytes!("../res/vsftpd.crt");
-    let cert = Certificate::from_pem(cert).unwrap();
-    let mut ftp_stream = ftp_stream.into_secure(NativeTlsConnector::from(TlsConnector::builder().add_root_certificate(cert).build().unwrap()), "gitea.piwalker.net").unwrap();
-    assert!(ftp_stream.login("anonymous", "anonymous@").is_ok());
-    assert!(ftp_stream.size("test").is_ok());
-    println!("test");
-    let data = ftp_stream.retr_as_buffer("fcs7/versions.json").unwrap();
-    println!("test");
-    let v: Value = serde_json::from_reader(data).unwrap();
-    println!("fcs7/{}",v[0]["File"].as_str().unwrap());
-    let mut data = ftp_stream.retr_as_buffer(format!("fcs7/{}",v[v.as_array().unwrap().len()-1]["File"].as_str().unwrap()).as_str()).unwrap_or_else(|err| panic!("Unable to download file"));
-    println!("{}", temp_dir().join("pack.mrpack").display());
-    let mut file = File::create(temp_dir().join("pack.mrpack")).unwrap();
-    std::io::copy(&mut data, &mut file).unwrap();
-    println!("{}",temp_dir().display());
-
+    prism::install_prism().unwrap();
+    //let mut data = Cursor::new(vec![]);
+    //ftp::ftpRetr(PathBuf::new().join("fcs7").join("versions.json"), &mut data, |_| return).unwrap();
+    //data.seek(std::io::SeekFrom::Start(0)).unwrap();
+    //let v: Value = serde_json::from_reader(data).unwrap();
+    //println!("fcs7/{}",v[v.as_array().unwrap().len()-1]["File"].as_str().unwrap());
+    //println!("{}", temp_dir().join("pack.mrpack").display());
+    //let mut file = File::create(temp_dir().join("pack.mrpack")).unwrap();
+    //ftp::ftpRetr(PathBuf::new().join("fcs7").join(v[v.as_array().unwrap().len()-1]["File"].as_str().unwrap()),file, |data| println!("Transferred {} Bytes", data)).unwrap();
+    //let output = Command::new("prismlauncher").arg("-I").arg(temp_dir().join("pack.mrpack")).spawn();
     
 
-    assert!(ftp_stream.quit().is_ok());
 
 }
+
+pub fn test(){}
diff --git a/launcher/src/prism.rs b/launcher/src/prism.rs
new file mode 100644
index 0000000..3772ca3
--- /dev/null
+++ b/launcher/src/prism.rs
@@ -0,0 +1,45 @@
+use std::{env, io::{Cursor, Seek}, path::PathBuf};
+use flate2::read::GzDecoder;
+use tar::Archive;
+
+use crate::{ftp, java, system_dirs::get_local_data_directory};
+
+
+pub fn check_prism() -> bool {
+    let path = get_local_data_directory().join("prism");
+    path.exists()
+}
+
+pub fn install_prism() -> Result<(), Box<dyn std::error::Error>>{
+    if check_prism() {
+        return Ok(());
+    }
+    java::install_java(21);
+    let path = PathBuf::new().join("prism").join(format!("prism-{}",if env::consts::OS == "windows" {"win.zip"} else {"lin.tar.gz"}));
+    let size = ftp::ftp_get_size(path.clone())?;
+    let mut buff = Cursor::new(vec![]);
+    let mut total = 0;
+    ftp::ftp_retr(path, &mut buff, |data| { 
+        total += data;
+        println!("Downloading Prism: {}MB / {}MB", total/(1024*1024), size/(1024*1024));
+    }).unwrap();
+    std::fs::create_dir_all(get_local_data_directory().join("prism"))?;
+    buff.rewind()?;
+    if env::consts::OS != "windows" {
+        let tar = GzDecoder::new(buff);
+        let mut archive = Archive::new(tar);
+        if !archive.unpack(get_local_data_directory().join("prism")).is_ok() {
+            std::fs::remove_dir_all(get_local_data_directory().join("prism"));
+        }
+    } else {
+        if !zip_extract::extract(buff, get_local_data_directory().join("prism").as_path(), true).is_ok() {
+            std::fs::remove_dir_all(get_local_data_directory().join("prism"));
+        }
+    }
+    
+    let buff = Cursor::new(vec![]);
+    ftp::ftp_retr(PathBuf, writer, callback)
+
+
+    Ok(())
+}
diff --git a/launcher/src/system_dirs.rs b/launcher/src/system_dirs.rs
new file mode 100644
index 0000000..ba67006
--- /dev/null
+++ b/launcher/src/system_dirs.rs
@@ -0,0 +1,8 @@
+use std::{env, path::{Path, PathBuf}};
+use dirs::home_dir;
+
+
+
+pub fn get_local_data_directory() -> PathBuf {
+    dirs::data_local_dir().unwrap().join("FCLauncher")
+}
diff --git a/launcher/src/util.rs b/launcher/src/util.rs
new file mode 100644
index 0000000..3195d68
--- /dev/null
+++ b/launcher/src/util.rs
@@ -0,0 +1,6 @@
+
+pub fn download_callback(count: usize, total: &mut usize, size: usize){
+    *total += count;
+    println!("Downloading {}MB / {}MB", *total/(1024*1024), size/(1024*1024));
+}
+