working version

remove const

no need for RwLock as we don't use mut in thread \o/

src/main.rs

@@ -12,8 +12,18 @@ mod prelude {
 }
 
 use prelude::*;
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+struct Args {
+    /// Number of threads
+    #[clap(short, long, default_value_t = 1)]
+    threads: usize,
+}
 
 fn main() {
+    let args = Args::parse();
+
     let term = Term::stdout();
     term.write_line("********** Rusty Propagation (Console) 2022 **********")
         .expect("Oops Looks like we have a problem here...");
@@ -29,7 +39,7 @@ fn main() {
     let mut counter: u32 = 0;
     loop {
         counter += 1;
-        stats = population.propagate_new();
+        stats = population.propagate_new(Some(args.threads));
         //population.display();
         println!(
             "Normal: {} Infecteds: {} Immunes: {} Deads: {}",