Perlin_FileBrowser

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

public class FileBrowser : MonoBehaviour {
    string message = "";
    float alpha = 1.0f;
    char pathChar = '/';
    public float posY = 560;
    public float posX = 560;
    public float posY2 = 739;
    public float posX2 = 18;
    public float xSize = 159;
    public float ySize = 20;
    public Button check;
    private bool importCheck, importCheckPass, spawnCheckPass ;
    private bool importSettingCheck, importSettingCheckPass, exportSettingCheckPass;
    public GameObject mapBehaviorObj;
    public GameObject spawnBehaviorObj;
    public Controller control;
    
    void Start () {
        if (Application.platform == RuntimePlatform.WindowsEditor || Application.platform == RuntimePlatform.WindowsPlayer) {
            pathChar = '\\';
        }
        importCheck = false;
        importSettingCheck = false;
    }
    void Update(){
        if (Input.GetKeyDown ("v") || Input.GetKeyDown("w")) {
            importCheck = !importCheck;
            if (importCheck){
                importCheckPass = true;
                spawnCheckPass = true;
            }else if (!importCheck){
                importCheckPass = false;
                spawnCheckPass = false;
            }
        }
        if (Input.GetKeyDown ("c") || Input.GetKeyDown("w")) {
            importSettingCheck = !importSettingCheck;
            if (importSettingCheck){
                importSettingCheckPass = true;
                exportSettingCheckPass = true;
            }else if (!importSettingCheck){
                importSettingCheckPass = false;
                exportSettingCheckPass = false;
            }
        }
    }
    void OnGUI () {
        if (!importCheckPass) {
            if (GUI.Button (new Rect(850, 562, 90, 30), "Import Map")) {
                if (UniFileBrowser.use.allowMultiSelect) {
                    UniFileBrowser.use.OpenFileWindow (OpenFiles);
                }
                else {
                    UniFileBrowser.use.OpenFileWindow (OpenFile);
                }
            }
        }
        if (!spawnCheckPass) {
            if (GUI.Button (new Rect(850, 662, 90, 31), "Spawn Map")) {
                if (UniFileBrowser.use.allowMultiSelect) {
                    UniFileBrowser.use.OpenFileWindow (OpenSpawnFiles);
                }
                else {
                    UniFileBrowser.use.OpenFileWindow (OpenSpawnFile);
                }
            }
        }
        if (!importSettingCheckPass) {
            if (GUI.Button (new Rect(posX2, posY2, xSize, ySize), "Import Settings")) {
                if (UniFileBrowser.use.allowMultiSelect) {
                    UniFileBrowser.use.OpenFileWindow (OpenFiles);
                }
                else {
                    UniFileBrowser.use.OpenFileWindow (OpenSettingFile);
                }
            }
        }
        if (!exportSettingCheckPass) {
            if (GUI.Button (new Rect(posX, posY, xSize, ySize), "Export Settings")) {
                UniFileBrowser.use.SaveFileWindow (SaveFile);
            }
        }
        var col = GUI.color;
        col.a = alpha;
        GUI.color = col;
        GUI.Label (new Rect(100, 275, 500, 1000), message);
        col.a = 1.0f;
        GUI.color = col;
    }
    void OpenFile (string behaviorpathToFile) {
        var behaviorfileIndex = behaviorpathToFile;
        //message = "You selected file: " + pathToFile.Substring (fileIndex+1, pathToFile.Length-fileIndex-1);
        mapBehaviorObj.GetComponent<MapBehavior> ().updatePath = behaviorfileIndex;
        mapBehaviorObj.GetComponent<MapBehavior> ().runIt = true;
        Fade();
    }
    void OpenSpawnFile (string spawnpathToFile) {
        var spawnfileIndex = spawnpathToFile;
        //message = "You selected file: " + pathToFile.Substring (fileIndex+1, pathToFile.Length-fileIndex-1);
        spawnBehaviorObj.GetComponent<SpawnBehavior> ().newPath = spawnfileIndex;
        spawnBehaviorObj.GetComponent<SpawnBehavior> ().runIt = true;
        Fade();
    }
    void OpenSettingFile (string pathToFile) {
        var fileIndex = pathToFile;
        //message = "You selected file: " + pathToFile.Substring (fileIndex+1, pathToFile.Length-fileIndex-1);
        control.GetComponent<SettingsImport> ().path = fileIndex;
        control.GetComponent<SettingsImport> ().runIt = true;
        Fade();
    }
    void OpenSpawnFiles (string[] pathsToFiles) {
        message = "You selected these files:\n";
        for (var i = 0; i < pathsToFiles.Length; i++) {
            var fileIndex = pathsToFiles[i].LastIndexOf (pathChar);
            message += pathsToFiles[i].Substring (fileIndex+1, pathsToFiles[i].Length-fileIndex-1) + "\n";
        }
        Fade();
    }
    void OpenFiles (string[] pathsToFiles) {
        message = "You selected these files:\n";
        for (var i = 0; i < pathsToFiles.Length; i++) {
            var fileIndex = pathsToFiles[i].LastIndexOf (pathChar);
            message += pathsToFiles[i].Substring (fileIndex+1, pathsToFiles[i].Length-fileIndex-1) + "\n";
        }
        Fade();
    }
    void SaveFile (string pathToFile) {
        var fileIndex = pathToFile;
        //message = "You're saving file: " + pathToFile.Substring (fileIndex+1, pathToFile.Length-fileIndex-1);
        control.GetComponent<SettingsExport> ().pathSpecified = fileIndex;
        control.GetComponent<SettingsExport> ().runIt = true;
        Fade();
    }
    void OpenFolder (string pathToFolder) {
        message = "You selected folder: " + pathToFolder;
        Fade();
    }
    void Fade () {
        StopCoroutine ("FadeAlpha");    // Interrupt FadeAlpha if it's already running, so only one instance at a time can run
        StartCoroutine ("FadeAlpha");
    }
    IEnumerator FadeAlpha () {
        alpha = 1.0f;
        yield return new WaitForSeconds (5.0f);
        for (alpha = 1.0f; alpha > 0.0f; alpha -= Time.deltaTime/4) {
             yield return null;
        }
        message = "";
    }
}
Update