using Godot;
using System;

public partial class Fireballv2 : ProjectileBase
{
	[Export] public float TurnRate { get; set; }
	[Export] public float OrbitStrength { get; set; }

	Vector2 _velocity;

	public override void _Ready()
	{
		var direction = (GetGlobalMousePosition() - GlobalPosition).Normalized();

		_velocity = direction * Speed;
		Rotation = _velocity.Angle();
	}

	public override void _PhysicsProcess(double delta)
	{
		var targetDirection = (GetGlobalMousePosition() - GlobalPosition).Normalized();
		var perp = targetDirection.Orthogonal();

		targetDirection = (targetDirection + perp * OrbitStrength).Normalized();
		var currentDirection = _velocity.Normalized();
		var angle = currentDirection.AngleTo(targetDirection);
		var maxTurn = TurnRate * (float)delta;

		angle = Mathf.Clamp(angle, -maxTurn, maxTurn);
		_velocity = _velocity.Rotated(angle);
		GlobalPosition += _velocity * (float)delta;
		Rotation = _velocity.Angle();
	}
}