using System.Collections.Generic;
using System.ComponentModel;
using Godot;
using Godot.Bridge;
using Godot.NativeInterop;

[ScriptPath("res://Scripts/Entities/Follower.cs")]
public partial class Follower : Entity
{
	[Export(PropertyHint.None, "")]
	public int followIndex;

	[Export(PropertyHint.None, "")]
	public Sprite2D DWOverlay;

	[Export(PropertyHint.None, "")]
	public Sprite2D soul;

	[Export(PropertyHint.None, "")]
	public Area2D soulHitbox;

	private const int followDelay = 20;

	public override void _EnterTree()
	{
		base._EnterTree();
		base.CollisionLayer = 524288u;
		base.CollisionMask = 524288u;
		Player instance = Player.instance;
		if (instance != null)
		{
			List<Follower> followers = instance.followers;
			if (((followers != null) ? new bool?(!followers.Contains(this)) : ((bool?)null)) == true)
			{
				Player.instance.followers.Add(this);
			}
		}
		Room.current?.entities.Add(this);
	}

	public override void _Process(double delta)
	{
		base._Process(delta);
		if (sprite != null)
		{
			if (Player.instance.dangerZoneCD > 0f)
			{
				sprite.SelfModulate = sprite.SelfModulate.Lerp(Main.colorDark, Main.deltaTime * 0.2f);
			}
			else
			{
				sprite.SelfModulate = sprite.SelfModulate.Lerp(Main.colorWhite, Main.deltaTime * 0.2f);
			}
		}
		else
		{
			TryUpdateComponents(force: true);
		}
		if (Main.inEvent == null && Player.instance.splitEntity != this)
		{
			DoMovement();
		}
	}

	public void DoMovement(bool force = false)
	{
		if (Player.instance.slide == null || base.GlobalPosition.Y > Player.instance.GlobalPosition.Y)
		{
			if (!Player.instance.waitForMove || force)
			{
				Vector2 vector = Player.instance.pos[100 - 20 * (followIndex + 1)];
				if (base.GlobalPosition.DistanceSquaredTo(vector) > 0.2f)
				{
					LookAt(vector);
					base.GlobalPosition = base.GlobalPosition.Lerp(vector, Main.deltaTime * 0.2f);
					currentAnim = Animations.Walk;
				}
				else
				{
					currentAnim = Animations.Idle;
				}
			}
		}
		else
		{
			currentAnim = Animations.Slide;
			base.GlobalPosition = base.GlobalPosition.Lerp(Player.instance.GlobalPosition + Vector2.Up * 16f * (followIndex + 1), Main.deltaTime * 0.1f);
		}
	}

	}