Add missing move checks

src/world.rs

@@ -102,7 +102,10 @@ impl ActualWorld {
     match mv {
       Move::Noop => {}
       Move::TryTag(other_id) => {
-        // FIXME check distance
+        let my_pos = self.state.agent_positions.get(&id).unwrap();
+        let other_pos = self.state.agent_positions.get(&other_id).unwrap();
+        assert!((my_pos.x - other_pos.x).abs() <= 1);
+        assert!((my_pos.y - other_pos.y).abs() <= 1);
         assert_eq!(self.state.tagged, id);
         assert_ne!(self.state.tagged_by, Some(*other_id));
         assert!(
@@ -111,7 +114,8 @@ impl ActualWorld {
         );
       }
       Move::TryMove(dir) => {
-        // FIXME check speed
+        assert!(dir.x.abs() <= 1);
+        assert!(dir.y.abs() <= 1);
         let pos = self.state.agent_positions.get(&id).unwrap();
         let size = &self.size;
         assert!(pos.x + dir.x > 0);