/// <summary>
/// Add a GameObject bounds to the static global bounds buffer, and then call this method
/// for his children
/// </summary>
/// <param name="gameObject"></param>
/// <param name="type"></param>
private static void AddGameObjectToGlobalBounds(GameObject gameObject, EBoundsType type)
{
// we only look for the given type
switch (type)
{
case EBoundsType.Collider:
Collider2D collider = gameObject.GetComponent <Collider2D>();
if (collider != null)
{
AddBounds(collider.bounds);
}
break;
case EBoundsType.Render:
Renderer renderer = gameObject.GetComponent <Renderer>();
if (renderer != null)
{
AddBounds(renderer.bounds);
}
break;
}
// we recursivly call this method on every child
for (int i = 0; i < gameObject.transform.childCount; i++)
{
AddGameObjectToGlobalBounds(gameObject.transform.GetChild(i).gameObject, type);
}
}
/// <summary>
/// Search recursivly all the bounds from the given type.
/// It merge it to get the global bounds of an object and all his descendants together.
/// </summary>
/// <param name="gameObject">The GO parent</param>
/// <param name="type">The type to look for</param>
/// <returns></returns>
public static Bounds FindGlobalBounds(GameObject gameObject, EBoundsType type)
{
_globalBoundsIsFilled = false; // this flag is here to tell that the globalBounds buffer content is irelevant.
AddGameObjectToGlobalBounds(gameObject, type);
return(_globalBounds); // this buffer is filled in "AddGameObjectToGlobalBounds
}