/*  This file is part of the "Simple Waypoint System" project by Rebound Games.
 *  You are only allowed to use these resources if you've bought them from the Unity Asset Store.
 * 	You shall not license, sublicense, sell, resell, transfer, assign, distribute or
 * 	otherwise make available to any third party the Service or the Content. */

using UnityEngine;
using System.Collections;
using DG.Tweening;
using SWS;

/// <summary>
/// Example: object controlled by user input along the path
/// <summary>
public class PathInputDemo : MonoBehaviour
{
    /// <summary>
    /// Speed value to multiply the input speed with. 
    /// <summary>
    public float speedMultiplier = 10f;

    /// <summary>
    /// Object progress on the path, should be read only.
    /// <summary>
    public float progress = 0f;

    //references
    private splineMove move;
    private Animator animator;


    //get references at start
    //initialize movement but don't start it yet
    void Start()
    {
        animator = GetComponent<Animator>();
        move = GetComponent<splineMove>();
        move.StartMove();
        move.Pause();
        progress = 0f;
    }


    //listens to user input
    void Update()
    {
        float speed = speedMultiplier / 100f;
        float duration = move.tween.Duration();

        //right arrow key
        if (Input.GetKey("right"))
        {
            //add a value based on time and speed to the progress to start moving right
            progress += Time.deltaTime * 10 * speed;
            progress = Mathf.Clamp(progress, 0, duration);
            move.tween.fullPosition = progress;
        }

        //left arrow key
        //same as above, but here we invert the progress direction
        if (Input.GetKey("left"))
        {
            progress -= Time.deltaTime * 10 * speed;
            progress = Mathf.Clamp(progress, 0, duration);
            move.tween.fullPosition = progress;
        }

        //let Mecanim animate our object when moving,
        //otherwise set speed to zero
        if ((Input.GetKey("right") || Input.GetKey("left"))
            && progress != 0 && progress != duration)
            animator.SetFloat("Speed", move.speed);
        else
            animator.SetFloat("Speed", 0f);
    }


    void LateUpdate()
    {
        //if we are moving backwards, rotate our walker by 180 degrees
        //this happens after the tween has updated the transform
        if (Input.GetKey("left"))
        {
            Vector3 rot = transform.localEulerAngles;
            rot.y += 180;
            transform.localEulerAngles = rot;
        }
    }
}