private static T FindComponent <T>(GameObject obj, ComponentSearchMode mode) where T : Component
{
switch (mode)
{
case ComponentSearchMode.Self:
return(obj.GetComponent <T>());
case ComponentSearchMode.Parent:
return(obj.GetComponentInParent <T>());
case ComponentSearchMode.Children:
return(obj.GetComponentInChildren <T>());
}
Debug.Assert(false);
return(null);
}
private static Dictionary <GameObject, Dictionary <System.Type, Component> > GetCache(ComponentSearchMode mode)
{
switch (mode)
{
case ComponentSearchMode.Self:
return(s_selfCache);
case ComponentSearchMode.Parent:
return(s_parentCache);
case ComponentSearchMode.Children:
return(s_childrenCache);
}
Debug.Assert(false);
return(null);
}
private static T GetCachedComponentInternal <T>(GameObject obj, bool throwIfNotFound, ComponentSearchMode mode) where T : Component
{
var cache = GetCache(mode);
Dictionary <System.Type, Component> behaviourCache;
if (!cache.TryGetValue(obj, out behaviourCache))
{
behaviourCache = new Dictionary <System.Type, Component>();
cache[obj] = behaviourCache;
}
Component comp;
if (!behaviourCache.TryGetValue(typeof(T), out comp))
{
comp = FindComponent <T>(obj, mode);
if (comp == null && throwIfNotFound)
{
throw new MissingComponentException($"Component of type '{typeof(T).Name}' not found");
}
behaviourCache[typeof(T)] = comp;
}
return(comp as T);
}
