Raycast.cs

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class Raycast : MonoBehaviour {

	public GameObject cube1;
	public GameObject cubeGreen;
	public GameObject cubeYellow;
	public GameObject cubePurple;

	public GameObject xText;
	public GameObject greenText;
	public GameObject yellowText;
	public GameObject purpleText;

	public GameObject cylR;
	public GameObject cylG;
	public GameObject cylY;
	public GameObject cylP;

	public GameObject boxR;
	public GameObject boxG;
	public GameObject boxY;
	public GameObject boxP;

	public bool haveRed = false;
	public bool haveGreen = false;
	public bool haveYellow = false;
	public bool havePurple = false;

	public int BoxIndex = 0;

	public int WinIndex = 0;
	public Text win;

	// Use this for initialization
	void Start () {
		boxR.active = false;
		boxG.active = false;
		boxY.active = false;
		boxP.active = false;

		win.enabled = false;
	}
	
	// Update is called once per frame
	void Update () {

		if (WinIndex == 4) {
			win.enabled = true;
		}

		if (Input.GetMouseButtonDown (0)) {
			Ray ray = Camera.main.ScreenPointToRay (Input.mousePosition);

			RaycastHit hit;

			if (Physics.Raycast (ray, out hit)) {
				if (hit.collider.gameObject == cube1) {
					xText.GetComponent<Text> ().color = Color.red;
					cube1.active = false;
					haveRed = true;
				
				}
				else if (hit.collider.gameObject == cubeGreen) {
					greenText.GetComponent<Text> ().color = Color.green;
					cubeGreen.active = false;
					BoxIndex++;
					haveGreen = true;


				}
				else if (hit.collider.gameObject == cubeYellow) {
					yellowText.GetComponent<Text> ().color = Color.yellow;
					cubeYellow.active = false;
					haveYellow = true;

				}
				else if (hit.collider.gameObject == cubePurple) {
					purpleText.GetComponent<Text> ().color = Color.magenta;
					cubePurple.active = false;
					havePurple = true;

				}
				else if (hit.collider.gameObject == cylP) {
					if (havePurple == true) {
						purpleText.GetComponent<Text> ().color = new Color(227f,227f,227f);
						boxP.active = true;
						WinIndex++;
					}

				}
				else if (hit.collider.gameObject == cylR) {
					if (haveRed == true) {
						xText.GetComponent<Text> ().color = new Color (227f, 227f, 227f);
						boxR.active = true;
						WinIndex++;
					}

				}
				else if (hit.collider.gameObject == cylY) {
					if (haveYellow == true) {
						yellowText.GetComponent<Text> ().color = new Color (227f, 227f, 227f);
						boxY.active = true;
						WinIndex++;
					}
				}
				else if (hit.collider.gameObject == cylG) {
					if (haveGreen == true) {
						greenText.GetComponent<Text> ().color = new Color (227f, 227f, 227f);
						boxG.active = true;
						WinIndex++;
					}

				}
			}
		}
	}
}