Enum을 활용한 Bit연산자 Flag

 

DamageOnTouch.cs

		[Flags]
		public enum TriggerAndCollisionMask
		{
			IgnoreAll = 0,
			OnTriggerEnter = 1 << 0,
			OnTriggerStay = 1 << 1,
			OnTriggerEnter2D = 1 << 6,
			OnTriggerStay2D = 1 << 7,

			All_3D = OnTriggerEnter | OnTriggerStay,
			All_2D = OnTriggerEnter2D | OnTriggerStay2D,
			All = All_3D | All_2D
		}
        
        public TriggerAndCollisionMask TriggerFilter = AllowedTriggerCallbacks;
        
        
        // ...
        
        public virtual void OnTriggerStay(Collider collider)
		{
			if (0 == (TriggerFilter & TriggerAndCollisionMask.OnTriggerStay)) return;
			Colliding(collider.gameObject);
		}

		public virtual void OnTriggerEnter(Collider collider)
		{
			if (0 == (TriggerFilter & TriggerAndCollisionMask.OnTriggerEnter)) return;
			Colliding(collider.gameObject);
		}