SupaLidlGame/State/Character/CharacterState.cs

using Godot;

namespace SupaLidlGame.State.Character
{
    public abstract partial class CharacterState : Node, IState<CharacterState>
    {
        [Export]
        public Characters.Character Character { get; set; }

        public virtual IState<CharacterState> Enter(IState<CharacterState> prev) => null;

        public virtual void Exit(IState<CharacterState> next)
        {

        }

        public virtual CharacterState Process(double delta)
        {
            if (Character.StunTime > 0)
            {
                Character.StunTime -= delta;
            }

            var item = Character.Inventory.SelectedItem;
            var offhand = Character.Inventory.OffhandItem;

            // angle towards item use angle or offhand use angle if not used

            bool targetTowards(Items.Item item)
            {
                if (item is Items.Weapon weapon)
                {
                    if (weapon.IsUsing)
                    {
                        Character.Target = weapon.UseDirection;
                        return true;
                    }
                }
                return false;
            }

            var _ = targetTowards(item) || targetTowards(offhand);

            return null;
        }

        public virtual CharacterState PhysicsProcess(double delta)
        {
            Character.Velocity = Character.NetImpulse;

            if (Character.NetImpulse.LengthSquared() < Mathf.Pow(Character.Speed, 2))
            {
                Character.Velocity += Character.Direction.Normalized()
                    * Character.Speed;
                // we should only modify velocity that is in the player's control
                Character.ModifyVelocity();
            }

            Character.NetImpulse = Character.NetImpulse.MoveToward(
                Vector2.Zero,
                (float)delta * Character.Speed * Character.Friction);

            Character.MoveAndSlide();

            return null;
        }

        public virtual CharacterState Input(InputEvent @event) => null;
    }
}