thing

1 files changed, 3 insertions, 4 deletions

diff --git a/src/pattern.rs b/src/pattern.rs
index ba9899e..042d0be 100644
--- a/src/pattern.rs
+++ b/src/pattern.rs
@@ -16,16 +16,15 @@ impl Sample for Rainbow {
 pub struct Sequence(pub Vec<Color>);
 impl Sample for Sequence {
     fn sample(&mut self, x: f64, _y: f64) -> Color {
-        self.0[(x * self.0.len() as f64).floor() as usize % self.0.len()]
+        self.0[x.rem_euclid(self.0.len() as f64) as usize]
     }
 }
 
 pub struct Gradient(pub Vec<Color>);
 impl Sample for Gradient {
     fn sample(&mut self, x: f64, _y: f64) -> Color {
-        let index = x * self.0.len() as f64;
-        let index_int = index.floor() as usize;
-        let index_error = index % 1.0;
+        let index_int = x.floor() as usize;
+        let index_error = x % 1.0;
         let a = self.0[index_int % self.0.len()];
         let b = self.0[(index_int + 1) % self.0.len()];
         Color::mix(a, b, index_error)