How to make part move in a wave?

[MojangMineo]

Hello! I want PART 1 [image below] to move to PART 2 position. The part only moves in a straight line and I don’t really know how to make a wave like this.

I attached an image to make it easier to understand. It would be really great if somebody can help.

[astraIboy (The Batman)]

You’re probably wanna look into BezierCurves

Bhristt's Bezier Curve Module (Tween support)

Introduction I’ve created a module that allows you to create an nth degree Bezier Curve given Vector3s and BaseParts (to add points that can change as the BaseParts position changes). This module can return the position of a point at any interval t, where 0 ≤ t ≤ 1, and is able to return the derivative of the Bezier Curve at any interval t, where 0 ≤ t ≤ 1. This is especially useful when you want to create something like an arrow following a path. The arrow has to point in the direction of th…