feat: add easings

include/misc/Easing.h

@@ -0,0 +1,67 @@
+#pragma once
+
+namespace td {
+namespace utils{
+
+/* Sine functions */
+
+float easeInSine(float x);
+float easeOutSine(float x);
+float easeInOutSine(float x);
+
+/* Cubic functions */
+
+float easeInCubic(float x);
+float easeOutCubic(float x);
+float easeInOutCubic(float x);
+
+/* Quint functions */
+
+float easeInQuint(float x);
+float easeOutQuint(float x);
+float easeInOutQuint(float x);
+
+/* Circ functions */
+
+float easeInCirc(float x);
+float easeOutCirc(float x);
+float easeInOutCirc(float x);
+
+/* Elastic functions */
+
+float easeInElastic(float x);
+float easeOutElastic(float x);
+float easeInOutElastic(float x);
+
+/* Quad functions */
+
+float easeInQuad(float x);
+float easeOutQuad(float x);
+float easeInOutQuad(float x);
+
+/* Quart functions */
+
+float easeInQuart(float x);
+float easeOutQuart(float x);
+float easeInOutQuart(float x);
+
+/* Expo functions */
+
+float easeInExpo(float x);
+float easeOutExpo(float x);
+float easeInOutExpo(float x);
+
+/* Back functions */
+
+float easeInBack(float x);
+float easeOutBack(float x);
+float easeInOutBack(float x);
+
+/* Bounce functions */
+
+float easeInBounce(float x);
+float easeOutBounce(float x);
+float easeInOutBounce(float x);
+
+} // namespace utils
+} // namespace td