changed comment

src/apr.rs

@@ -51,7 +51,7 @@ impl Apr {
         let mut actors: Vec<actor::Actor> = Vec::new();
         let mut behaviours: Vec<behaviour::Behaviour> = Vec::new();
         for i in 0..r {
-            // white side
+            // white side pawns
             actors.push(actor::Actor::new(_ctx, "/pawn.png", i, 1, 0));
             behaviours.push(behaviour::Behaviour::new(
                 vec![(-1, -1), (1, -1)],
@@ -59,7 +59,7 @@ impl Apr {
             ));
         }
         for i in 0..r {
-            // black side
+            // black side pawns
             actors.push(actor::Actor::new(_ctx, "/pawn2.png", i, c - 2, 0));
             behaviours.push(behaviour::Behaviour::new(
                 vec![(1, 1), (-1, 1)],