Fixed ability to use system wine to run the game

src/lib/launcher/states.rs

@@ -43,15 +43,13 @@ impl LauncherState {
     pub fn get<T: Fn(&str)>(status: T) -> std::io::Result<Self> {
         let config = config::get()?;
 
-        // Check wine existance
-        if config.game.wine.selected == None {
+        // Check wine existence
+        if let None = config.try_get_wine_executable() {
             return Ok(Self::WineNotInstalled);
         }
 
-        // Check prefix existance
-        let prefix = WinePrefix::new(&config.game.wine.prefix);
-
-        if !prefix.exists() {
+        // Check prefix existence
+        if !WinePrefix::exists_in(&config.game.wine.prefix) {
             return Ok(Self::PrefixNotExists);
         }
 

src/lib/wine_prefix.rs

@@ -12,7 +12,11 @@ impl WinePrefix {
     }
 
     pub fn exists(&self) -> bool {
-        Path::new(&format!("{}/drive_c", self.path)).exists()
+        Self::exists_in(&self.path)
+    }
+
+    pub fn exists_in<T: ToString>(path: T) -> bool {
+        Path::new(&format!("{}/drive_c", path.to_string())).exists()
     }
 
     fn wine<T: ToString>(&self, runners_folder: T, runner: super::wine::Version, command: &str) -> std::io::Result<Output> {