Simple Example of Enums and Switch Statements

PrimitiveMover.cs

// PrimitiveMove.cs
// Creates a simple primitive in Unity and moves it in a user-selected driection.

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PrimitiveMover : MonoBehaviour {

	public enum Shape {Box, Ball, Pill};
	public enum Direction {Left, Right, Up, Down, Forward, Backward}

	private GameObject primitive;

	public Shape shape = Shape.Box;
	public Direction direction = Direction.Up;

	// Use this for initialization
	void Start () {
		if (shape == Shape.Box) {
			primitive = GameObject.CreatePrimitive (PrimitiveType.Cube);
		} else if (shape == Shape.Ball) {
			primitive = GameObject.CreatePrimitive (PrimitiveType.Sphere);
		} else if (shape == Shape.Pill) {
			primitive = GameObject.CreatePrimitive (PrimitiveType.Cube);
		}
	}
	
	// Update is called once per frame
	void Update () {
		Vector3 moveDirection;

		// Switch Case Example
		switch (direction){
		case Direction.Up:
			moveDirection = Vector3.up;
			break;
		case Direction.Down:
			moveDirection = Vector3.down;
			break;
		case Direction.Forward:
			moveDirection = Vector3.forward;
			break;
		case Direction.Backward:
			moveDirection = Vector3.back;
			break;
		case Direction.Left:
			moveDirection = Vector3.left;
			break;
		case Direction.Right:
			moveDirection = Vector3.right;
			break;
		default:
			moveDirection = Vector3.forward;
			break;
		}

		primitive.GetComponent<Transform>().Translate (moveDirection*Time.deltaTime);
	}
}