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


// TODO: Import Standard assets CrossPlatformInput library
using UnityStandardAssets.CrossPlatformInput;

public class PlayerMovementKeyboard : MonoBehaviour, IPlayerMovement
{
    protected CharacterController characterController;

    void Start()
    {
        // Get and cache the character controller component attached to the game object this script is attached to
        characterController = GetComponent<CharacterController>();
    }


    // See more: https://docs.unity3d.com/ScriptReference/CharacterController.Move.html
    public Vector3 GetMovement(float walkSpeed, float runSpeedMultiplier, float rotateSpeed)
    {
        // read inputs on horizontal (h) and vertical (v)
        float h = CrossPlatformInputManager.GetAxis("Horizontal");
        float v = CrossPlatformInputManager.GetAxis("Vertical");


        // Returns the movement vector
        Vector3 movement = new Vector3(h, 0f, v);

        // Apply speed
        movement *= walkSpeed;

        //// Apply jumping if applicable


        // If there is movement, i.e. movement is not zero, 
        if (movement != Vector3.zero)
        {

            // If this is not a mobile device, if user is running (pressing left shift key) increase speed by multiplying by run speed multiplier
#if !MOBILE_INPUT
        if (Input.GetKey(KeyCode.LeftShift))
            {

            }
#endif

            // Apply gravity. Gravity is multiplied by deltaTime twice (once here, and once below
            // when the movement is multiplied by deltaTime). This is because gravity should be applied
            // as an acceleration (ms^-2)

            //If is jumping apply gravity


            // Gradually rotate character forward in direction of the movement direction (Quaternion.LookRotation) 
            // using the defined rotation speed and make it frame rate independent (multiply by Time.deltatime)
            transform.rotation = Quaternion.Slerp(transform.rotation, 
                Quaternion.LookRotation(movement), 
                Time.deltaTime * rotateSpeed);

            // make it frame rate independent
            movement *= Time.deltaTime;

            characterController.Move(movement);
        }

        return movement;
    }

}