GetOrAddComponent

Author: Caue Rego (cawas)

Description

Simple method extension to save 2 or 3 lines of very redundant and ugly code. It will check if component exists before adding new one.

Usage

This is just an instance. It could be, of course, any component.

	BoxCollider boxCollider = transform.GetOrAddComponent<BoxCollider>();

MonoBehaviourExtended.cs

static public class MethodExtensionForMonoBehaviourTransform {
	/// <summary>
	/// Gets or add a component. Usage example:
	/// BoxCollider boxCollider = transform.GetOrAddComponent<BoxCollider>();
	/// </summary>
	static public T GetOrAddComponent<T> (this Component child) where T: Component {
		T result = child.GetComponent<T>();
		if (result == null) {
			result = child.gameObject.AddComponent<T>();
		}
		return result;
	}
}