[Unity] Pause Rigidbody Component

RigidbodyPause.cs

/*
 * https://gist.github.com/johnsoncodehk/783295c6aa06593badfce037c810c7b2
 */

using UnityEngine;

[RequireComponent(typeof(Rigidbody))]
public class RigidbodyPause : MonoBehaviour {

	[System.Serializable]
	public struct OnPuaseData {
		public Vector3 velocity;
		public Vector3 angularVelocity;
	}

	public bool isPaused;

	private bool m_IsPaused;
	private Rigidbody m_Rigidbody;
	private OnPuaseData m_OnPauseData;

	void Start() {
		this.m_Rigidbody = this.GetComponent<Rigidbody>();
	}
	void Update() {
		if (this.isPaused != this.m_IsPaused) {
			if (this.isPaused) {
				this.Pause();
			}
			else {
				this.Continue();
			}
			this.m_IsPaused = this.isPaused;
		}
	}

	private void Pause() {
		this.m_OnPauseData.velocity = this.m_Rigidbody.velocity;
		this.m_OnPauseData.angularVelocity = this.m_Rigidbody.angularVelocity;

		this.m_Rigidbody.isKinematic = true;
	}
	private void Continue() {
		this.m_Rigidbody.isKinematic = false;

		this.m_Rigidbody.AddForce(this.m_OnPauseData.velocity, ForceMode.VelocityChange);
		this.m_Rigidbody.AddTorque(this.m_OnPauseData.angularVelocity, ForceMode.VelocityChange);
	}
}

RigidbodyPause2D.cs

/*
 * https://gist.github.com/johnsoncodehk/783295c6aa06593badfce037c810c7b2
 */

using UnityEngine;

[RequireComponent(typeof(Rigidbody2D))]
public class RigidbodyPauser2D : MonoBehaviour {

	[System.Serializable]
	public struct OnPuaseData {
		public RigidbodyType2D bodyType;
		public Vector2 velocity;
		public float angularVelocity;
	}

	public bool isPaused;

	private bool m_IsPaused;
	private Rigidbody2D m_Rigidbody;
	private OnPuaseData m_OnPauseData;

	void Start() {
		this.m_Rigidbody = this.GetComponent<Rigidbody2D>();
	}
	void Update() {
		if (this.isPaused != this.m_IsPaused) {
			if (this.isPaused) {
				this.Pause();
			}
			else {
				this.Continue();
			}
			this.m_IsPaused = this.isPaused;
		}
	}

	private void Pause() {
		this.m_OnPauseData.bodyType = this.m_Rigidbody.bodyType;
		this.m_OnPauseData.velocity = this.m_Rigidbody.velocity;
		this.m_OnPauseData.angularVelocity = this.m_Rigidbody.angularVelocity;

		this.m_Rigidbody.bodyType = RigidbodyType2D.Static;
	}
	private void Continue() {
		this.m_Rigidbody.bodyType = this.m_OnPauseData.bodyType;
		this.m_Rigidbody.velocity = this.m_OnPauseData.velocity;
		this.m_Rigidbody.angularVelocity = this.m_OnPauseData.angularVelocity;
	}
}