Use trigonometric functions to float buttons up and down

To achieve the top-down floating effect of a button, we usually think of animation and Itween. This time we'll use trigonometric functions to implement

Code implementation:

usingUnityengine;usingSystem.Collections; Public classDemo:monobehaviour {Private floatRadian =0;//radians     Public floatPerradian =0.02f;//increases the radian, can control the speed that moves up and down     Public floatRadius =0.2f;//The range of motion that can control the distance moving up and down    PrivateVector2 Oldpos; PrivateRecttransform RT;  Public voidStart () {RT= transform. Getcomponent<recttransform>(); Oldpos=rt.anchoredposition; }        Public voidUpdate () {Radian+=Perradian; //Matif.cos incoming radians, return is the adjacent edge: the ratio of the hypotenuse, the value between 1 and 1 multiplied by the motion range = The maximum radius that the button moves up or down        floatDY = Mathf.cos (radian) *radius; Rt.anchoredposition= Oldpos +NewVector2 (0, DY); }}

Use trigonometric functions to float buttons up and down