using Godot;

public partial class Node2d : CharacterBody2D {
    public const float Speed = 300.0f;
    public const float JumpVelocity = -400.0f;

    public override void _PhysicsProcess(double delta) {
        var velocity = Velocity;

        // Add the gravity.
        if (!IsOnFloor()) velocity += GetGravity() * (float)delta;

        // Handle Jump.
        if (Input.IsActionJustPressed("ui_accept") && IsOnFloor()) velocity.Y = JumpVelocity;

        // Get the input direction and handle the movement/deceleration.
        // As good practice, you should replace UI actions with custom gameplay actions.
        var direction = Input.GetVector("ui_left", "ui_right", "ui_up", "ui_down");
        if (direction != Vector2.Zero)
            velocity.X = direction.X * Speed;
        else
            velocity.X = Mathf.MoveToward(Velocity.X, 0, Speed);

        Velocity = velocity;
        MoveAndSlide();
    }
}