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


public class Platformer : MonoBehaviour {

    

    public GameObject Platform;
    [Header("Set the stopping points of the platform")]
	public GameObject[] Stop_points;
	[Header("Set the platform's speed")]
    public float PlatformSpeed = 0.4f;
	[Header("How long will the platform remain still")]
	public float timeBetweenStops = 0;
	[Header("Should the platform reverse it's path on reching the last point or should it keep going?")]
	public bool Reverse_Path_On_Conclussion = true;


	////Internal values
	private int Current_Target = 0;
	private bool Reversing_Path = false;
	private bool stopped = false;


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	///////////    /////////     ///////////
	///               ///        ///        
	///               ///        ///        
	///////////       ///        ///////////
	        ///       ///                ///
	        ///       ///                ///
	///////////    /////////     ///////////

//////////////////////////////////////////////////////////

	void FixedUpdate(){
		if(stopped==false){
			if(Vector3.Distance(Stop_points[Current_Target].transform.position, Platform.transform.position)<0.01f){
				stopped=true;
				StartCoroutine(_Time_Between_Movements());
			}
			else{				
				Platform.transform.position = Vector3.MoveTowards(Platform.transform.position, Stop_points[Current_Target].transform.position, PlatformSpeed* Time.deltaTime);
			}
			
		}

		
	}



	private IEnumerator _Time_Between_Movements(){
					
				if(Stop_points!=null && Stop_points.Length>0){
					if(Reverse_Path_On_Conclussion){/////REVERSIBLE PATH MODE
						if(Reversing_Path){///REVERSE PATHING
							///CHECK IF IT REACHED THE BEGINNING OF THE LINE
							if(Current_Target-1 <= 0){
								Reversing_Path = false;
							}
							Current_Target--;
							
							
						}
						else{///NORMAL PATHING
							///CHECK IF IT REACHED THE END OF THE LINE
							if(Current_Target+1>=Stop_points.Length-1){
								Reversing_Path = true;
							}
							Current_Target++;
						}

					}
					else{
						///CHECK IF IT REACHED THE END OF THE LINE
						if(Current_Target+1>=Stop_points.Length){
							Current_Target = 0;
						}
						else{
							Current_Target++;
						}
					}
					
				}

				yield return new WaitForSeconds(timeBetweenStops); 
				stopped=false;
			
		
	}





}