void UpdateRenderables <T>(
List <T> renderables,
GameObject newObject,
List <GameObject> objectPool,
BidirectionalMap <T, GameObject> renderableObjectMap,
Transform uiContainer,
System.Action <GameObject> onCreateCallback = null)
where T : IRenderable
{
// Put all GameObjects in a set, and remove the objects that are still in used
HashSet <GameObject> unusedObjects = new HashSet <GameObject>(renderableObjectMap.Values);
foreach (T renderable in renderables)
{
GameObject uiObject;
// Spawn new UI person
if (!renderableObjectMap.ContainsKey(renderable))
{
if (objectPool.Count > 0)
{
uiObject = objectPool[objectPool.Count - 1];
objectPool.RemoveAt(objectPool.Count - 1);
uiObject.SetActive(true);
}
else
{
uiObject = Instantiate(newObject);
}
uiObject.transform.SetParent(uiContainer, false);
renderableObjectMap.Add(renderable, uiObject);
if (onCreateCallback != null)
{
onCreateCallback(uiObject);
}
}
else
{
uiObject = renderableObjectMap.GetValue(renderable);
unusedObjects.Remove(uiObject);
}
renderable.RenderTo(uiObject);
}
foreach (GameObject uiObject in unusedObjects)
{
renderableObjectMap.RemoveValue(uiObject);
objectPool.Add(uiObject);
uiObject.SetActive(false);
uiObject.transform.SetParent(null, false);
}
}