Clear the Quint easing functions

orhanbalci · Dec 7, 2016 · 032da99 · 032da99
1 parent db1cbae
commit 032da99
Showing 1 changed file with 13 additions and 13 deletions.
diff --git a/src/functions/quint.rs b/src/functions/quint.rs
@@ -4,24 +4,24 @@ use super::ease::Easing;
 pub struct Quint;
 
 impl Easing for Quint {
-    fn ease_in(t: f32, b: f32, c: f32, d: f32) -> f32 {
-        let inner_t = t / d;
-        c * inner_t.powi(5) + b
+    fn ease_in(mut t: f32, b: f32, c: f32, d: f32) -> f32 {
+        t = t / d;
+        c * (t * t * t * t * t) + b
     }
 
-    fn ease_out(t: f32, b: f32, c: f32, d: f32) -> f32 {
-        let inner_t = t / d - 1.0;
-        c * (inner_t.powi(5) + 1.0) + b
+    fn ease_out(mut t: f32, b: f32, c: f32, d: f32) -> f32 {
+        t = t / d - 1.0;
+        c * ((t * t * t * t * t) + 1.0) + b
     }
 
-    fn ease_in_out(t: f32, b: f32, c: f32, d: f32) -> f32 {
-        let mut inner_t = t / (d / 2.0);
-        if inner_t < 1.0 {
-            return (c / 2.0) * inner_t.powi(5) + b;
+    fn ease_in_out(mut t: f32, b: f32, c: f32, d: f32) -> f32 {
+        t = t / (d / 2.0);
+        if t < 1.0 {
+            (c / 2.0) * (t * t * t * t * t) + b
+        } else {
+            t -= 2.0;
+            c / 2.0 * ((t * t * t * t * t) + 2.0) + b
         }
-        inner_t -= 2.0;
-        return c / 2.0 * (inner_t.powi(5) + 2.0) + b;
-
     }
 }