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

public class SpellCaster : NetworkBehaviour
{
    [SerializeField]
    GameObject spellPrefab;

    [SerializeField]
    Transform spellCastPoint;


    private Camera mainCamera;

	// Use this for initialization
	void Start ()
    {
        mainCamera = FindObjectOfType<Camera>();
	}

    void Reset()
    {
        spellCastPoint = transform.Find("SpellCastPoint");
    }

	// Update is called once per frame
	void Update ()
    {
        if (!isLocalPlayer)
            return;

        Ray cameraRay = mainCamera.ScreenPointToRay(Input.mousePosition);
        Plane groundPlane = new Plane(Vector3.up, Vector3.zero);
        float rayLength;

        if (groundPlane.Raycast(cameraRay, out rayLength))
        {
            Vector3 pointToLook = cameraRay.GetPoint(rayLength);
            Debug.DrawLine(cameraRay.origin, pointToLook, Color.red);

            transform.LookAt(new Vector3(pointToLook.x, transform.position.y, pointToLook.z));
        }

        if (Input.GetMouseButtonDown(0))
        {
            CmdSpawnSpell();
        }
    }

    [Command] // Functions for the server to deal with
    void CmdSpawnSpell()
    {
        GameObject instance = Instantiate(spellPrefab, spellCastPoint.position, spellCastPoint.rotation) as GameObject;

        NetworkServer.Spawn(instance);
    }

}