/// <summary>
/// Orders the lawn elements so that they're drawn correctly.
/// </summary>
private void OrderLawn()
{
List <RectTransform> transforms = new List <RectTransform>(this.lawn.Capacity);
foreach (RectTransform transform in this.rectTransform)
{
if (LawnController.IsWeed(transform.gameObject))
{
transforms.Add(transform);
}
}
// Sort the items by y so that the layering is correct and then move them
// to be the last sibling to enforce the draw order.
transforms.Sort((a, b) => b.anchoredPosition.y.CompareTo(a.anchoredPosition.y));
foreach (RectTransform transform in transforms)
{
transform.SetAsLastSibling();
}
}
/// <inheritdoc />
void Start()
{
// Clear existing weeds.
for (int i = 0; i < this.rectTransform.childCount; ++i)
{
GameObject child = this.rectTransform.GetChild(i).gameObject;
if (LawnController.IsWeed(child))
{
Destroy(child);
}
}
// Add new weeds.
for (int weedIndex = 0; weedIndex < this.lawn.Capacity; ++weedIndex)
{
PortableItem weed = this.lawn[weedIndex];
if (weed == null)
{
continue;
}
Vector2 position;
if (layout.FindPosition(this.rectTransform, out position))
{
PortableItemController obj = GameObject.Instantiate(this.prefab, this.rectTransform);
obj.Initialize(weed);
// Set the anchor to the center because rect.min, rect.max, and the
// collider are all relative to the center.
RectTransform itemTransform = obj.transform as RectTransform;
itemTransform.anchorMin.Set(0.5f, 0.5f);
itemTransform.anchorMax.Set(0.5f, 0.5f);
itemTransform.anchoredPosition = position;
}
else
{
// Couldn't place it after 100 attempts; clear it from the inventory so
// we don't count it in the score.
this.lawn[weedIndex] = null;
}
}
this.OrderLawn();
}
