unity constant movement in 3d script code example
Example: unity how to move an object
float x = 10f; //the x value for the object's position
float y = 10f; //the y value for the object's position
float z = 10f; //the z value for the object's position
Vector3 position = new Vector3(x, y, z); // this will create a vector with the values of the x, y, and z values
transform.position = position; //this change the object that this script is attached to position to the position vector that was created