feat: add easing fns

2021-08-20 17:52:48 +02:00
parent 49badfeafa
commit a27639b43e
14 changed files with 306 additions and 0 deletions
@@ -0,0 +1,18 @@
+/// <https://easings.net/#easeInQuint>
+pub fn quint_in(t: f32) -> f32 {
+	t * t * t * t
+}
+
+/// <https://easings.net/#easeOutQuint>
+pub fn quint_out(t: f32) -> f32 {
+	1.0 - (1.0 - t).powi(5)
+}
+
+/// <https://easings.net/#easeInOutQuint>
+pub fn quint_in_out(t: f32) -> f32 {
+	if t < 0.5 {
+		16.0 * t * t * t * t * t
+	} else {
+		1.0 - (-2.0 * t + 2.0).powi(5) / 2.0
+	}
+}