Scriptum/Assets/Scripts/KeyBindScript.cs

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

public class KeyBindScript : MonoBehaviour
{

    /// <summary>
    /// This is the dictionary, that contains all our keybinds
    /// </summary>
    private Dictionary<string, KeyCode> keys = new Dictionary<string, KeyCode>();

    /// <summary>
    /// References to the button objects, these are used for showing the current keybinds
    /// </summary>
    public Text interaction, skills, settings, attack, inventory;

    /// <summary>
    /// The key, that we are binding atm.
    /// </summary>
    private GameObject currentKey;

    /// <summary>
    /// The normal color of the buttons
    /// </summary>
    private Color32 normal = new Color32(255, 255, 255, 255);

    /// <summary>
    /// The highlighted color of the buttons
    /// </summary>
    private Color32 slected = new Color32(239, 116, 36, 255);

    // Use this for initialization
    void Start()
    {
        keys.Add("Interact",(KeyCode)System.Enum.Parse(typeof(KeyCode), PlayerPrefs.GetString("Interact","E")));
        keys.Add("Settings",(KeyCode)System.Enum.Parse(typeof(KeyCode), PlayerPrefs.GetString("Settings","Esc")));
        keys.Add("Inventory",(KeyCode)System.Enum.Parse(typeof(KeyCode), PlayerPrefs.GetString("Inventory","I")));
        keys.Add("Skills",(KeyCode)System.Enum.Parse(typeof(KeyCode), PlayerPrefs.GetString("Skills","U")));
        keys.Add("Attack",(KeyCode)System.Enum.Parse(typeof(KeyCode), PlayerPrefs.GetString("Attack","Space")));

        //Sets the text on the buttons
        interaction.text = keys["Interact"].ToString();
        skills.text = keys["Settings"].ToString();
        settings.text = keys["Inventory"].ToString();
        attack.text = keys["Skills"].ToString();
        inventory.text = keys["Attack"].ToString();

    }

    /*
    // Update is called once per frame
    void Update()
    {
        //Simulates movement and usage of the keys
        if (Input.GetKeyDown(keys["Up"]))
        {
            //Do a move action
            Debug.Log("Up");
        }
        if (Input.GetKeyDown(keys["Down"]))
        {
            //Do a move action
            Debug.Log("Down");
        }
        if (Input.GetKeyDown(keys["Left"]))
        {
            //Do a move action
            Debug.Log("Left");
        }
        if (Input.GetKeyDown(keys["Right"]))
        {
            //Do a move action
            Debug.Log("Right");
        }
        if (Input.GetKeyDown(keys["Jump"]))
        {
            //Do a move action
            Debug.Log("Jump");
        }
    }

 }*/
    void OnGUI()
    {
        if (currentKey != null) //If we have selected a key, that we want to edit
        {
            Event e = Event.current; //Stores the event

            if (e.isKey) //If we pressed a key on the keyboard, then we need to assign it to the selected key
            {
                keys[currentKey.name] = e.keyCode; //Sets the current key
                currentKey.transform.GetChild(0).GetComponent<Text>().text = e.keyCode.ToString(); //Sets the text
                currentKey.GetComponent<Image>().color = normal; //Sets thecolor
                currentKey = null; //Deselects the key
            }
        }
    }

    /// <summary>
    /// Changes a keybind
    /// </summary>
    /// <param name="clicked">The clicked button</param>
    public void ChangeKey(GameObject clicked)
    {
        if (currentKey != null) //If we have a selected key, then we need to deselect
        {
            currentKey.GetComponent<Image>().color = normal; //Sets the color to normal
        }

        currentKey = clicked; //Sets the new clicked key as the current key

        currentKey.GetComponent<Image>().color = slected; //Set the color as selected
    }

    /// <summary>
    /// Saves the new keybinds
    /// </summary>
    public void SaveKeys()
    {
        foreach (var key in keys) //Runs through the dictionary
        {
            PlayerPrefs.SetString(key.Key, key.Value.ToString()); //Saves the keybinds for each key
        }

        PlayerPrefs.Save();

    }
}