[Unity] 10가지 팁 by TaroDev

https://www.youtube.com/watch?v=Ic5ux-tpkCE 

 

1. Serializing Components

직렬화(Serialized Field)가 붙은 변수에 컴포넌트가 붙어있는 Prefabs 을 생성해줄 경우 굳이 GameObject 를 만든후 컴포넌트를 붙이지 않아도 된다.

 

2. Drowing Scene Gizmos

Gizmos Tracking 이 중요하다. 그려놓고 보면 바로 보임

3. Initialization Order

초기화 순서 중요. static pattern 에서 Awake 에서 초기화를 하면 겹침. 

[DefaultExecutionOrder(-1)]
public class SensorManager : MonoBehaviour
{
	...
}

최근에 알게된 DefaultExecutionOrder

 

4. Stop using public field

굳이 쓰려면 getter setter 같은 property 를 쓰자.

5. Modulo(%) to loop collections

산술연산자 % 를 잘 활용하자.

public class Cow : MonoBehaviour
{
    [SerializeField] private AudioSource _source;
    [SerializeField] private AudioClip[] _clips;

    private int _clipIndex;

    private void OnMouseDown()
    {
        _source.clip = _clips[_clipIndex++];
        _source.Play();

        if (_clipIndex >= _clips.Length) _clipIndex = 0;
    }

}

---

To Fixed

public class Cow : MonoBehaviour
{
    [SerializeField] private AudioSource _source;
    [SerializeField] private AudioClip[] _clips;

    private int _clipIndex;

    private void OnMouseDown()
    {
        // Option 1
        _source.clip = _clips[_clipIndex++ % _clips.Length];
        _source.Play();

        // Option 2 - PlayClipAtPoint(AudioClip clip, Vector3 position, float volume = 1.0F)
        AudioSource.PlayClipAtPoint(_source.clip, transform.position, 1f);
    }
}

6. PlayClipAtPoint 한줄로

7. Limit extern calls with SetPositionAndRotation 

transform.position , transform.rotation 을 초기화할 때 SetPositionAndRotation 같은 API 로 한줄로
8. Operator overloading

public struct Stats
{
    public int AttackPower;
    public int Health;

    public static Stats operator +(Stats a, Stats b)
    {
        return new Stats
        {
            AttackPower = a.AttackPower + b.AttackPower,
            Health = a.Health + b.Health
        };
    }
}

public class Something
{
    public Something()
    {
        var baseStats = new Stats
        {
            AttackPower = 69,
            Health = 420
        };
        var leveledStats = new Stats
        {
            AttackPower = 123,
            Health = 456
        };

        // from
        var finalStats = new Stats 
        {
            AttackPower = baseStats.AttackPower + leveledStats.Health,
            Health = baseStats.AttackPower + leveledStats.Health
        };

        // to
        var finalStats = baseStats + leveledStats;
    }
}

9. Composition

구성방식 - 필요에 따라서 독립성과 종속성을 지켜가면서 구성하기
10. Don't use lazy naming conventions

변수이름 편하게 적지말고, 정확하게 적기