void OnValidate()
{
if (atlas == null)
{
return;
}
int length = _text.Length;
// Calculate number of characters
int characterCount = 0;
for (int i = 0; i < length; i++)
{
if (_text[i] != ' ')
{
characterCount++;
}
}
// Get number of children
int childCount = transform.childCount;
if (characterCount > childCount)
{
// Enable all children
for (int i = 0; i < childCount; i++)
{
transform.GetChild(i).gameObject.SetActive(true);
}
// Add new children
for (int i = characterCount - childCount; i > 0; i--)
{
GameObject character = new GameObject((characterCount - i + 1).ToString());
character.transform.SetParent(transform);
character.transform.localScale = Vector3.one;
character.transform.localPosition = Vector3.zero;
character.AddRectTransform();
Image image = character.AddComponent <Image>();
image.color = _color;
image.raycastTarget = false;
}
}
else
{
for (int i = 0; i < characterCount; i++)
{
transform.GetChild(i).gameObject.SetActive(true);
}
for (int i = characterCount; i < childCount; i++)
{
transform.GetChild(i).gameObject.SetActive(false);
}
}
// Check if empty
if (length == 0)
{
gameObject.GetComponent <RectTransform>().sizeDelta = Vector2.zero;
return;
}
int index = 0;
float width = 0;
float height = 0;
Vector2 size;
// Set sprite
for (int i = 0; i < length; i++)
{
char c = _text[i];
if (c != ' ')
{
Transform child = transform.GetChild(index++);
Image image = child.GetComponent <Image>();
image.sprite = atlas.Get(c);
image.SetNativeSize();
size = child.GetComponent <RectTransform>().sizeDelta;
width += size.x + _gap;
if (size.y > height)
{
height = size.y;
}
}
else
{
width += spaceWidth - _gap;
}
}
if (_text[length - 1] != ' ')
{
width -= _gap;
}
// Set size
gameObject.GetComponent <RectTransform>().sizeDelta = new Vector2(width, height);
// Get bottom-left position
Vector2 position = _anchor.GetAnchoredPosition(width, height, _offsetX, _offsetY);
RectTransform rectTransform;
float leftExtent;
float bottomExtent;
index = 0;
// Set position
for (int i = 0; i < length; i++)
{
if (_text[i] != ' ')
{
Transform child = transform.GetChild(index++);
rectTransform = child.GetComponent <RectTransform>();
size = rectTransform.sizeDelta;
leftExtent = size.x * 0.5f;
bottomExtent = size.y * 0.5f;
position.x += leftExtent;
position.y += bottomExtent;
rectTransform.anchoredPosition = position;
position.x += size.x - leftExtent + _gap;
position.y -= bottomExtent;
}
else
{
position.x += spaceWidth - _gap;
}
}
}
