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

[ScriptPath("res://Scripts/CameraController.cs")]
public partial class CameraController : Node2D
{
	public Node2D follow;

	public float scrollSpeed = 5f;

	public float shakeTime;

	public float shakeIntensity = 2f;

	public Vector2? target;

	private Vector2? endShake;

	[Export(PropertyHint.None, "")]
	public Vector2 offset = defaultOffset;

	public float speed = 1f;

	public static CameraController instance;

	[Export(PropertyHint.None, "")]
	public Control contents;

	public static Coroutine transitionRoutine;

	[Export(PropertyHint.None, "")]
	public Control cover;

	public static readonly Vector2 defaultOffset = new Vector2(0f, -16f);

	public const float defaultShake = 2f;

	public override void _EnterTree()
	{
		base.ProcessPriority = int.MaxValue;
		instance = this;
	}

	public static void Shake(float time = 5f, float intensity = 1f)
	{
		instance.shakeTime = time;
		instance.shakeIntensity = intensity;
	}

	public override void _PhysicsProcess(double delta)
	{
		if (follow != null)
		{
			base.GlobalPosition = base.GlobalPosition.Lerp(follow.GlobalPosition + offset, speed * Main.physisDelta);
		}
		else if (target.HasValue)
		{
			base.GlobalPosition = base.GlobalPosition.Lerp(target.Value, speed * Main.physisDelta);
		}
		if (Room.current != null)
		{
			base.GlobalPosition = new Vector2(Mathf.Clamp(base.GlobalPosition.X, Room.current.cameraLimit[0].X, Room.current.cameraLimit[1].X), Mathf.Clamp(base.GlobalPosition.Y, Room.current.cameraLimit[0].Y, Room.current.cameraLimit[1].Y));
		}
		DoShake();
		if (shakeTime > 0f)
		{
			shakeTime -= Main.physisDelta;
		}
		CallDeferred(MethodName.LateUpdate);
	}

	private void LateUpdate()
	{
	}

	private void DoShake()
	{
		if (shakeTime > 0f)
		{
			if (!target.HasValue && follow == null)
			{
				Vector2 valueOrDefault = endShake.GetValueOrDefault();
				if (!endShake.HasValue)
				{
					valueOrDefault = base.GlobalPosition;
					endShake = valueOrDefault;
				}
			}
			float[] array = new float[2]
			{
				Main.RandomRange(0f - shakeIntensity, shakeIntensity),
				Main.RandomRange(0f - shakeIntensity, shakeIntensity)
			};
			for (int i = 0; i < array.Length; i++)
			{
				if (array[i] > -1f && array[i] < 1f)
				{
					if (array[i] > 0f)
					{
						array[i] = 1f;
					}
					else
					{
						array[1] = -1f;
					}
				}
				else
				{
					array[i] = Mathf.Round(array[i]);
				}
			}
			Vector2 vector = new Vector2(array[0], array[1]);
			contents.Position = vector;
			if (!endShake.HasValue)
			{
				base.GlobalPosition -= vector;
			}
			else
			{
				base.GlobalPosition = endShake.Value + vector;
			}
		}
		else
		{
			if (!target.HasValue && follow == null && endShake.HasValue)
			{
				base.GlobalPosition = endShake.Value;
			}
			endShake = null;
			contents.Position = Vector2.Zero;
		}
	}

	public static void Transition(Color color, float time = 0f, int? sort = null, Color? startColor = null)
	{
		if (sort.HasValue)
		{
			instance.cover.ZIndex = sort.Value;
		}
		else
		{
			instance.cover.ZIndex = 4000;
		}
		instance.cover.Visible = true;
		if (time == 0f)
		{
			instance.cover.SelfModulate = color;
			return;
		}
		instance.cover.SelfModulate = (startColor.HasValue ? startColor.Value : instance.cover.SelfModulate);
		Coroutine coroutine = transitionRoutine;
		if (coroutine != null && !coroutine.done)
		{
			Coroutine.Stop(transitionRoutine);
		}
		transitionRoutine = Coroutine.Start(DelayedTransition(color, time, instance.cover.SelfModulate));
	}

	private static IEnumerator DelayedTransition(Color to, float time, Color start)
	{
		for (float a = 0f; a <= time; a += Main.deltaTime)
		{
			instance.cover.SelfModulate = start.Lerp(to, a / time);
			yield return null;
		}
		instance.cover.SelfModulate = to;
	}

	public static IEnumerator PanToObj(Node2D targetObj, float time = 1f, bool fixedRate = true, bool addOffset = true, bool setTarget = true)
	{
		Coroutine c = Coroutine.Start(PanToObj(instance.GlobalPosition, targetObj, time, fixedRate, addOffset, setTarget));
		while (!c.done)
		{
			yield return null;
		}
	}

	public static IEnumerator PanToObj(Vector2 startPos, Node2D targetObj, float time = 1f, bool fixedRate = true, bool addOffset = true, bool setTarget = true)
	{
		Coroutine routine = Coroutine.Start(Pan(startPos, targetObj.GlobalPosition + (addOffset ? instance.offset : Vector2.Zero), time, fixedRate));
		while (!routine.done)
		{
			yield return null;
		}
		if (setTarget)
		{
			instance.follow = targetObj;
		}
	}

	public static IEnumerator Pan(Vector2 pos, float time, bool fixedRate = true, float failsafe = 400f)
	{
		Coroutine c = Coroutine.Start(Pan(instance.GlobalPosition, pos, time, fixedRate, failsafe));
		while (!c.done)
		{
			yield return null;
		}
	}

	public static IEnumerator Pan(Vector2 startPos, Vector2 pos, float time, bool fixedRate = true, float failsafe = 400f)
	{
		instance.follow = null;
		if (fixedRate)
		{
			while (failsafe > 0f)
			{
				float num = instance.GlobalPosition.DistanceSquaredTo(pos);
				if (!(num > 1.1f))
				{
					break;
				}
				instance.GlobalPosition += instance.GlobalPosition.DirectionTo(pos).Snapped(Vector2.One) * time * Mathf.Clamp(num / 3f, 0f, 1f);
				failsafe -= Main.deltaTime;
				yield return null;
			}
			if (failsafe <= 0f)
			{
				instance.GlobalPosition = pos;
			}
		}
		else
		{
			for (float a = 0f; a < time; a += Main.deltaTime)
			{
				instance.GlobalPosition = startPos.Lerp(pos, a / time);
				yield return null;
			}
		}
		instance.GlobalPosition = new Vector2(Mathf.Round(pos.X), Mathf.Round(pos.Y));
	}

	}