cirnogodot/Scripts/Components/Actors/AnimationHandler.cs

using Godot;

namespace Cirno.Scripts.Components.Actors;

public partial class AnimationHandler : Node2D
{
    [Export]
    public AnimatedSprite2D _animatedSprite { get; protected set; }
    
    protected Actor _parent;
    
    public virtual void Init(Actor parent)
    {
        _parent = parent;
        
        // var children = GetChildren();
        // foreach (var child in children) {
        //     if (child is InputProvider inputProvider) 
        //     {
        //         _inputProviders.Add(inputProvider);
        //     }
        // }
    }

    public virtual void Update(double delta)
    {

        var direction = _parent.FacingDirection; //GetSnappedDirection();
        
        if (_parent.Velocity.Length() > 0)
        {
            _animatedSprite.Play("walk_" + DirectionToString(direction));
            _animatedSprite.SpeedScale = 1;
        }
        else
        {
            //_animatedSprite.Play("idle_" + DirectionToString(direction));
            _animatedSprite.Play("walk_" + DirectionToString(direction));
            _animatedSprite.SpeedScale = 0;
        }

    }
    
    private string DirectionToString(Vector2 direction)
    {
        var angle = Mathf.RadToDeg(direction.Angle());
        angle = Mathf.PosMod(angle, 360);

        if (angle >= 337.5 || angle < 22.5) return "right";
        if (angle >= 22.5 && angle < 67.5) return "up_right";
        if (angle >= 67.5 && angle < 112.5) return "up";
        if (angle >= 112.5 && angle < 157.5) return "up_left";
        if (angle >= 157.5 && angle < 202.5) return "left";
        if (angle >= 202.5 && angle < 247.5) return "down_left";
        if (angle >= 247.5 && angle < 292.5) return "down";
        if (angle >= 292.5 && angle < 337.5) return "down_right";

        return "up";
    }
}