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

[Serializable]
public class ToolNewVector
{
  [HideInInspector]
  public Vector3 cursorPos;
  [HideInInspector]
  public List<Vector3> vector = new List<Vector3>();

  public void Reset()
  {
    // for resetting the tool (when swapping around, initializing, etc)
    vector.Clear();
  }

  public void Frame(Input input, Pixelgon pixelgon)
  {
    cursorPos = input.twistCursor;

    int length = 0;
    for (int i = 0; i < pixelgon.vectors.Count; i++)
    {
      if (pixelgon.vectors[i] == Vector3.zero)
      {
        length = 0;
      }
      else
      {
        if (length > 0)
        {
          // how to switch between edge snap and direction snap
          // can you have them both happening at the same time?
          // is it a priority based system?
          cursorPos = StaticMethods.EdgeSnap(
            pixelgon.vectors[i - 1],
            pixelgon.vectors[i],
            input.twistCursor
          );
          if (cursorPos != input.twistCursor)
          {
            break;
          }
        }

        length++;
      }
    }

    if (input.mainCon.trigger.down)
    {
      vector.Add(cursorPos);
      vector.Add(cursorPos); // -> vector
    }

    if (vector.Count > 0)
    {
      if (input.mainCon.trigger.held)
      {
        if (input.mainCon.one.down)
        {
          vector.Add(cursorPos);
        }

        if (input.mainCon.two.down)
        {
          if (vector.Count > 2)
          {
            vector.RemoveAt(vector.Count - 1);
          }
          else
          {
            vector.Clear();
          }
        }

        vector[vector.Count - 1] = cursorPos;
      }

      if (input.mainCon.trigger.up)
      {
        vector.Insert(0, Vector3.zero);
        vector.Add(Vector3.zero);
        pixelgon.vectors.AddRange(vector);
        vector.Clear();
      }
    }
  }
}