Fixed some diagnostics

src/apr.rs

@@ -54,7 +54,7 @@ impl Apr {
         // Load/create resources such as images here.
         let mut board = board::make_board(xlen, ylen);
         let mut actors: Vec<actor::Actor> = Vec::new();
-        let mut behaviours: Vec<behaviour::Behaviour> = vec![behaviour::Behaviour {
+        let behaviours: Vec<behaviour::Behaviour> = vec![behaviour::Behaviour {
             moves: vec![
                 behaviour::MovePattern {
                     movement: (1, 0),

src/behaviour.rs

@@ -23,9 +23,8 @@ pub struct MovePatIt<'a> {
 impl Iterator for MovePatIt<'_> {
     type Item = MovePattern;
     fn next(&mut self) -> Option<Self::Item> {
-        match self.cache.pop() {
-            Some(x) => return Some(x),
-            None => (),
+        if let Some(x) = self.cache.pop() {
+            return Some(x);
         }
 
         let k = self.iter.next()?;
@@ -59,7 +58,7 @@ impl Iterator for MovePatIt<'_> {
             });
         }
 
-        return Some(*k);
+        Some(*k)
     }
 } //if naive sucks
 

src/main.rs

@@ -32,3 +32,4 @@ fn main() -> GameResult<()> {
     // Run!
     event::run(ctx, event_loop, apr);
 }
+