-#ifdef INTERFACE
+#ifndef ANIM_EASING_H
+#define ANIM_EASING_H
entity makeHostedEasing(entity, void(entity, float), float(float, float, float, float), float, float, float);
entity makeEasing(entity, void(entity, float), float(float, float, float, float), float, float, float, float);
float easingLinear(float, float, float, float);