using Godot;
using System;

public partial class EvilEye : StaticBody2D
{
	private Area2D probe; // probe for positioning lazer beams
	private AnimatedSprite2D lidSprite; // animated sprite of eye lid
	private AnimatedSprite2D ballSprite; // animated sprite of eye ball
	private bool spriteStop; // for sprites which only happen once
	public int frame = 0; // frame of lazer's animation
	private int pause; // timer to help with syncing up the lazer beams
	
	[Export]
	public bool red; //do you want it cherry flavored?
	[Export] //can be tweaked in inspector
	public bool activated; // if activated
	[Export]
	public int direction; // left-1 right-2 up-3 down-4
	
	
	private void _on_area_2d_area_entered(Area2D area)
	{
		if (area.IsInGroup("Cage")) // if probe detects an obstical
		{
			activated = !activated; //inverts the activation status of the eye (on -> off, off -> on)
		}
	}
	
	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
		//setting variables that can't be preloaded
		probe = GetNode<Area2D>("FacingProbe");
		lidSprite = GetNode<AnimatedSprite2D>("EvilEyeLid");
		ballSprite = GetNode<AnimatedSprite2D>("EvilEyeBall");
		//fun fact: despite only having one animation, it has to be activated within the code or else it's a still image
		if(red == false)
		{
			ballSprite.Play("Idle");
		}
		if(red == true)
		{
			ballSprite.Play("RedIdle");
		}
		//direction for placing newly spawned lazerbeams
		switch (direction)
		{
			case 1: lidSprite.Rotation = 3.1416f; probe.Position = new Vector2(-20,0); break;
			case 2: lidSprite.Rotation = 0; probe.Position = new Vector2(20,0); break;
			case 3: lidSprite.Rotation = 4.712f; probe.Position = new Vector2(0,-20); break;
			case 4: lidSprite.Rotation = 1.5708f; probe.Position = new Vector2(0,20); break;
		}
	}

	// Called every frame. 'delta' is the elapsed time since the previous frame.
	public override void _Process(double delta)
	{
		//everything below this is so that all of the lazers sync with eachother
		if (pause == 0)
		{
			//allowing the lazers to move
			for(int i = 0; i < GetChildCount(); i++)
			{
				if(GetChild(i).IsInGroup("Lazer"))
				{
					var child = GetChild(i) as lazer;
					child.pause = 0;
				}
			}
			//creates more lazers if activated
			if(activated == true)
			{
				var packedLazer = GD.Load<PackedScene>("res://Entities/Lazer.tscn");
				var lazer = packedLazer.Instantiate() as lazer;
				lazer.Position = probe.Position;
				lazer.direction = direction;
				AddChild(lazer);
			}
			//this syncs animations
			if(red == false)
			{
				for(int i = 0; i < GetChildCount(); i++)
				{
					if(GetChild(i).IsInGroup("Lazer"))
					{
						var child = GetChild(i) as lazer;
						child.sprite.Play(frame.ToString());
					}
				}
			}
			if(red == true)
			{
				for(int i = 0; i < GetChildCount(); i++)
				{
					if(GetChild(i).IsInGroup("Lazer"))
					{
						var child = GetChild(i) as lazer;
						child.sprite.Play("Red" + frame.ToString());
					}
				}
			}
			//small frame timer
			frame++;
			if(frame > 3) {frame = 0;}
			
			pause = 3;
		}
		else
		{
			pause--;
		}
		animations();
	}
	
	private void animations()
	{
		//since these are one time only animations, I need to stop them from looping
		//similar to the cage, these are dependant on activation status and not a timer
		if(red == false)
		{
			if (activated == true && spriteStop == false)
			{
				lidSprite.Play("Active");
				spriteStop = true;
			}
			if (activated == false)
			{
				lidSprite.Play("Idle");
				spriteStop = false;
			}
		}
		if(red == true)
		{
			if (activated == true && spriteStop == false)
			{
				lidSprite.Play("RedActive");
				spriteStop = true;
			}
			if (activated == false)
			{
				lidSprite.Play("RedIdle");
				spriteStop = false;
			}
		}
	}
}