/// <summary>Initialize template.</summary>
protected virtual void Start()
{
// check template
#if DEBUG
string message;
if (!YouTubeThumbnailContainer.HasValidTemplate(this, out message))
{
Debug.LogError("[mod.io] " + message, this);
return;
}
#endif
// get template vars
Transform templateParent = this.containerTemplate.parent;
string templateInstance_name = this.containerTemplate.gameObject.name + " (Instance)";
int templateInstance_index = this.containerTemplate.GetSiblingIndex() + 1;
this.m_itemTemplate = this.containerTemplate.GetComponentInChildren <YouTubeThumbnailDisplay>(true);
// duplication protection
bool isInstantiated = (templateParent.childCount > templateInstance_index &&
templateParent.GetChild(templateInstance_index).gameObject.name == templateInstance_name);
if (isInstantiated)
{
this.m_templateClone = templateParent.GetChild(templateInstance_index).gameObject;
YouTubeThumbnailDisplay[] itemInstances = this.m_templateClone.GetComponentsInChildren <YouTubeThumbnailDisplay>(true);
if (itemInstances == null || itemInstances.Length == 0)
{
isInstantiated = false;
GameObject.Destroy(this.m_templateClone);
}
else
{
this.m_container = (RectTransform)itemInstances[0].transform.parent;
foreach (YouTubeThumbnailDisplay item in itemInstances)
{
GameObject.Destroy(item.gameObject);
}
}
}
if (!isInstantiated)
{
this.m_templateClone = GameObject.Instantiate(this.containerTemplate.gameObject, templateParent);
this.m_templateClone.transform.SetSiblingIndex(templateInstance_index);
this.m_templateClone.name = templateInstance_name;
YouTubeThumbnailDisplay itemInstance = this.m_templateClone.GetComponentInChildren <YouTubeThumbnailDisplay>(true);
this.m_container = (RectTransform)itemInstance.transform.parent;
GameObject.Destroy(itemInstance.gameObject);
this.m_templateClone.SetActive(true);
}
this.DisplayThumbnails(this.m_modId, this.m_youTubeIds);
}
// ---------[ UTILITY ]---------
/// <summary>Checks a YouTubeThumbnailContainer's template structure.</summary>
public static bool HasValidTemplate(YouTubeThumbnailContainer container, out string helpMessage)
{
helpMessage = null;
bool isValid = true;
YouTubeThumbnailDisplay itemTemplate = null;
// null check
if (container.containerTemplate == null)
{
helpMessage = ("Invalid template:"
+ " The container template is unassigned.");
isValid = false;
}
// containerTemplate is child of Component
else if (!container.containerTemplate.IsChildOf(container.transform) ||
container.containerTemplate == container.transform)
{
helpMessage = ("Invalid template:"
+ " The container template must be a child of this object.");
isValid = false;
}
// YouTubeThumbnailDisplay is found under containerTemplate
else if ((itemTemplate = container.containerTemplate.gameObject.GetComponentInChildren <YouTubeThumbnailDisplay>()) == null)
{
helpMessage = ("Invalid template:"
+ " No YouTubeThumbnailDisplay component found in the children of the container template.");
isValid = false;
}
// YouTubeThumbnailDisplay is on same gameObject as containerTemplate
else if (itemTemplate.transform == container.containerTemplate)
{
helpMessage = ("Invalid template:"
+ " The YouTubeThumbnailDisplay component cannot share a GameObject with the container template.");
isValid = false;
}
return(isValid);
}
