example-grass/Eat Da Rich/Pig/Pig.cs

using Godot;
using System.Collections;
using System.Collections.Generic;
using Godot.Collections;

namespace Rokojori
{
  [GlobalClass,Tool]
  public partial class Pig:Node
  {
    [Export]
    public RigidBody3D rigidBody3D;

    [Export]
    public float speed = 5;

    [Export]
    public Smoothing rotationSmoothing;

    [Export]
    public Action onSpawn;

    [Export]
    public bool alive = true;
    
    public override void _Process( double delta )
    {
      if ( Engine.IsEditorHint() )
      {
        return;
      }

      var player = Unique<Player>.Get();

      if ( player == null )
      {
        return;
      }

      

      var direction = player.GlobalPosition - rigidBody3D.GlobalPosition;
      direction.Y = 0;

      direction = direction.Normalized() * speed;

      rigidBody3D.GlobalPosition += direction;

      rigidBody3D.LookAt( player.GlobalPosition );
      var nextRotation = rigidBody3D.GetGlobalQuaternion();
      var rotation = Smoothing.Apply( rotationSmoothing, nextRotation, (float)delta );
      rigidBody3D.SetGlobalQuaternion( rotation );
    }

  }
}