fix direction tests by removing rounding and specifying f64 literals

Author: JaskRendix

tests/test_simple.rs

@@ -222,7 +222,10 @@ fn effect_builder_creates_rumble_with_direction() {
     match effect {
         Effect::Rumble(r) => {
             assert_eq!(r.duration, 2000);
-            assert_eq!(r.direction, (90.0 / 360.0 * 65535.0).round() as u16);
+            assert_eq!(
+                r.direction,
+                ((90.0f64 / 360.0f64) * 65535.0f64) as u16
+            );
         }
         _ => panic!("Expected Rumble effect from builder"),
     }
@@ -236,7 +239,10 @@ fn effect_builder_creates_periodic_effect() {
 
     match effect {
         Effect::Periodic(p) => {
-            assert_eq!(p.direction, ((180.0 / 360.0) * 65535.0).round() as u16);
+            assert_eq!(
+                p.direction,
+                ((180.0f64 / 360.0f64) * 65535.0f64) as u16
+            );
             assert!(matches!(p.waveform, PeriodicWaveform::Sine));
         }
         _ => panic!("Expected Periodic effect from builder"),