Switch statement not working C# (answered)

[g_l_1]

My game creates two obstacles which can each be in one of three different positions(picked randomly). However in my game i never want them to be the same position to begin with. So using my knowledge of switch statements from the switch statement beginner tutorial i created one to change my second obstacles position to a position which was not the same as the first and was randomly decided from the other two positions. I know this sounds complex but hopefully the code will explain it, i come across what i believe are syntax errors yet the code is fine in comparison with the rules talked about in the tutorial. Below is my code and errors -

using UnityEngine;
using System.Collections;

public class Generater2 : MonoBehaviour {
	public Rigidbody original;
	public new Vector3 startPoin;
	public Vector3 posOne;
	
	Vector3[] positionArra = new Vector3[3];
	Vector3[] positionArr = new Vector3[3];
	
	// Use this for initialization
	void Start () {
		InvokeRepeating("Spawn", 2.1f, 1f);

		positionArra[0] = new Vector3(0f,4f,100f);            
		positionArra[1] = new Vector3(10f,4f,100f);
		positionArra[2] = new Vector3(-10f,4f,100f);

		positionArr[0] = new Vector3(0f,4f,100f);            
		positionArr[1] = new Vector3(-10f,4f,100f);
	}
	
	// Update is called once per frame
	void Update () 
	{
		startPoin = positionArra[Random.Range(0,3)];

		GameObject plane = GameObject.Find("Plane");
		Generater playerScript = plane.GetComponent<Generater>();
		posOne = playerScript.startPoint;

		if (posOne == startPoin)
		{
			switch (posOne)
			{
				case (-10f, 4f, 100f):
					startPoin = positionArra[Random.Range(0,2)];
					break;

				case (0f, 4f, 100f):
					startPoin = positionArra[Random.Range(1,3)];
					break;

				case (10f, 4f, 100f):
					startPoin = positionArr[Random.Range(0,2)];
					break;
			}

		}
	}
	
	
	
	void Spawn () {
		Rigidbody clone = (Rigidbody)Instantiate (original, startPoin, new Quaternion (0,0,0,0));
	}
	
}

Assets/Scripts/Generater2.cs(36,43): error CS1026: Unexpected symbol ,', expecting )’

Assets/Scripts/Generater2.cs(40,36): error CS1525: Unexpected symbol `case’

Assets/Scripts/Generater2.cs(54,14): error CS0116: A namespace can only contain types and namespace declarations

Assets/Scripts/Generater2.cs(58,1): error CS8025: Parsing error

Assets/Scripts/Generater2.cs(44,36);error CS1525: Unexpected symbol ‘case’

[DoTA_KAMIKADzE]

Switch statement doesn’t have a built-in functionality for that. Switch expression or case label must be a bool, char, string, sbyte, byte, short, ushort, int, uint, long, ulong, enum, or corresponding nullable type.

You can either create a custom “switch” or just use if-else, e.g.:

    if (posOne == startPoin)
    {
        if (posOne == new Vector3(-10f, 4f, 100f)) startPoin = positionArra[Random.Range(0, 2)];
        else if (posOne == new Vector3(0f, 4f, 100f)) startPoin = positionArra[Random.Range(1, 3)];
        else if (posOne == new Vector3(10f, 4f, 100f)) startPoin = positionArr[Random.Range(0, 2)];
    }