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Game Development Patterns with Unity 2021 - Second Edition

You're reading from  Game Development Patterns with Unity 2021 - Second Edition

Product type Book
Published in Jul 2021
Publisher Packt
ISBN-13 9781800200814
Pages 246 pages
Edition 2nd Edition
Languages
Author (1):
David Baron David Baron
Profile icon David Baron

Table of Contents (22) Chapters

Preface 1. Sections 1: Fundamentals
2. Before We Begin 3. The Game Design Document 4. A Short Primer to Programming in Unity 5. Section 2: Core Patterns
6. Implementing a Game Manager with the Singleton 7. Managing Character States with the State Pattern 8. Managing Game Events with the Event Bus 9. Implement a Replay System with the Command Pattern 10. Optimizing with the Object Pool Pattern 11. Decoupling Components with the Observer Pattern 12. Implementing Power-Ups with the Visitor Pattern 13. Implementing a Drone with the Strategy Pattern 14. Using the Decorator to Implement a Weapon System 15. Implementing a Level Editor with Spatial Partition 16. Section 3: Alternative Patterns
17. Adapting Systems with an Adapter 18. Concealing Complexity with a Facade Pattern 19. Managing Dependencies with the Service Locator Pattern 20. About Packt 21. Other Books You May Enjoy

Testing the Object Pool implementation

To test our implementation of the Object Pool in your own instance of Unity, you need to carry out the following steps:

  1. Create a new empty Unity scene.
  2. Copy all the scripts we just reviewed and save them in your project.
  3. Add an empty GameObject to the scene.
  4. Attach the following client script to your empty GameObject:
using UnityEngine;

namespace Chapter.ObjectPool
{
public class ClientObjectPool : MonoBehaviour
{
private DroneObjectPool _pool;

void Start()
{
_pool = gameObject.AddComponent<DroneObjectPool>();
}

void OnGUI()
{
if (GUILayout.Button("Spawn Drones"))
_pool.Spawn();
}
}
}

Once you start your scene, you should see a graphical user interface (GUI) button named Spawn Drones in the top-left corner, as we can see in the following screenshot:

Figure 8.2  Screenshot of the code example in action

By pressing the ...

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