The 3D character controller

using Reckfell;

public partial class SquashPlayer : CharacterBody3D
{
    [Signal] public delegate void HitEventHandler();
    [Export] public float Speed { get; set; } = 5;
    [Export] public float Gravity { get; set; } = 24;
    [Export] public float JumpSpeed { get; set; } = 8;
    [Export] public float BounceSpeed { get; set; } = 6;
    public bool Active { get; set; } = true;
    private Area3D _detector = null!;
    private LandingPulse _visual = null!;

    public override void _Ready()
    {
        _detector = GetEntity<Area3D>("MobDetector");
        _visual = GetEntity<LandingPulse>("Visual");
    }

    public override void _PhysicsProcess(double delta)
    {
        if (!Active)
        {
            Velocity = Vector3.Zero;
            return;
        }

        Vector3 velocity = Velocity;
        if (!IsOnFloor()) velocity.Y -= Gravity * (float)delta;
        if (IsOnFloor() && Input.IsActionJustPressed("jump")) velocity.Y = JumpSpeed;
        Vector2 input = Input.GetVector("move_left", "move_right", "move_forward", "move_back");
        velocity.X = input.X * Speed;
        velocity.Z = input.Y * Speed;
        bool falling = velocity.Y < 0;
        Velocity = velocity;
        MoveAndSlide();
        Position = new Vector3(Mathf.Clamp(Position.X, -6, 6), Position.Y, Mathf.Clamp(Position.Z, -6, 6));

        if (falling && IsOnFloor()) _visual.Pulse();
        for (int i = 0; i < GetSlideCollisionCount(); i++)
        {
            KinematicCollision3D collision = GetSlideCollision(i);
            if (falling && collision.GetNormal().Y > 0.5f &&
                collision.GetCollider() is SquashMob mob && mob.TrySquash())
            {
                velocity = Velocity;
                velocity.Y = BounceSpeed;
                Velocity = velocity;
                return;
            }
        }

        if (IsOnFloor())
        {
            foreach (Entity3D body in _detector.GetOverlappingBodies())
            {
                if (body is SquashMob mob && !mob.IsQueuedForDeletion())
                {
                    TakeHit();
                    break;
                }
            }
        }
    }

    public void StartAt(Vector3 position)
    {
        Position = position;
        Velocity = Vector3.Zero;
        ResetPhysicsInterpolation();
        _visual.ResetVisual();
        Active = true;
    }

    public void TakeHit()
    {
        if (!Active) return;
        Active = false;
        Velocity = Vector3.Zero;
        EmitSignal(SignalName.Hit);
    }
}