Floor function

examples/simple_melody.rs

@@ -8,7 +8,7 @@ const SAMPLE_RATE: SampleRate = SampleRate::CD;
 
 fn main() {
     // A quarter note.
-    let q = Time::from_sec(0.5, SAMPLE_RATE);
+    let q = Time::from_sec(0.5, SAMPLE_RATE).floor();
     // The loop length.
     let length = 16u8 * q;
     // Release time for each note.
@@ -66,7 +66,7 @@ fn main() {
                 // Play as usual.
                 melody.next()
             } else {
-                // Stop the loop, just play the inner signal instead.
+                // Stop the loop, just play the inner fading signal instead.
                 melody.sgn_mut().next()
             }
         },

src/units/time/frac_int.rs

@@ -125,6 +125,11 @@ impl FracInt {
     pub fn frac_f64(self) -> f64 {
         f64::from(self.frac_int()) / POW_TWO_F64
     }
+
+    /// Rounds to the nearest integer down.
+    pub fn floor(self) -> Self {
+        Self::new_raw(self.0 & !((1 << 16) - 1))
+    }
 }
 
 /// Implements [`From`] for integer types.

src/units/time/mod.rs

@@ -109,6 +109,13 @@ impl Time {
     pub fn advance(&mut self) {
         *self += Self::SAMPLE;
     }
+
+    /// Rounds to the nearest sample down.
+    /// 
+    /// This can be useful if you want to force something into a neat length.
+    pub fn floor(self)->Self{
+        Self::new(self.samples.floor())
+    }
 }
 
 impl std::fmt::Display for Time {