private void _HandleSpriteTag(VertexHelper toFill)
{
var spriteTags = _spriteTags;
var count = spriteTags.Count;
for (int i = 0; i < count; i++)
{
SpriteTag spriteTag = spriteTags[i];
var name = spriteTag.GetName();
var atlas = spriteTag.GetAtlas();
if (string.IsNullOrEmpty(name) || null == atlas)
{
continue;
}
var sprite = atlas.GetSprite(name);
if (null == sprite)
{
continue;
}
switch (spriteTag.GetFillMethod())
{
case SpriteTag.FillMethod.None:
_SetSpriteVertex_FillMethod_None(toFill, spriteTag, sprite);
break;
case SpriteTag.FillMethod.Horizontal:
_SetSpriteVertex_FillMethod_Horizontal(toFill, spriteTag, sprite);
break;
}
}
}
private SpriteTag _GetSpriteTag(int index)
{
if (index >= 0)
{
_spriteTags.EnsureSizeEx(index + 1);
SpriteTag tag = _spriteTags[index] ?? (_spriteTags[index] = new SpriteTag(this));
return(tag);
}
return(null);
}
private void _SetSpriteVertex_FillMethod_Horizontal(VertexHelper toFill, SpriteTag spriteTag, Sprite sprite)
{
UIVertex v = UIVertex.simpleVert;
var vertexIndex = spriteTag.GetVertexIndex() * 4;
var fetchIndex = vertexIndex + 3;
if (fetchIndex >= toFill.currentVertCount)
{
return;
}
toFill.PopulateUIVertex(ref v, fetchIndex);
Vector3 textPos = v.position;
var tagSize = spriteTag.GetSize();
float xOffset = spriteTag.GetOffset() * tagSize.x;
var texture = sprite.texture;
var textureWidthInv = 1.0f / texture.width;
var textureHeightInv = 1.0f / texture.height;
var uvRect = sprite.textureRect;
uvRect = new Rect(uvRect.x * textureWidthInv, uvRect.y * textureHeightInv, uvRect.width * textureWidthInv, uvRect.height * textureHeightInv);
// pos = (0, 0)
var position = new Vector3(xOffset, 0, 0) + textPos;
var uv0 = new Vector2(uvRect.x, uvRect.y);
_SetSpriteVertex(toFill, vertexIndex, position, uv0);
var fillAmount = spriteTag.GetFillAmount();
// pos = (1, 0)
position = new Vector3(xOffset + tagSize.x * fillAmount, 0, 0) + textPos;
uv0 = new Vector2(uvRect.x + uvRect.width * fillAmount, uvRect.y);
_SetSpriteVertex(toFill, ++vertexIndex, position, uv0);
// pos = (1, 1)
position = new Vector3(xOffset + tagSize.x * fillAmount, tagSize.y, 0) + textPos;
uv0 = new Vector2(uvRect.x + uvRect.width * fillAmount, uvRect.y + uvRect.height);
_SetSpriteVertex(toFill, ++vertexIndex, position, uv0);
// pos = (0, 1)
position = new Vector3(xOffset, tagSize.y, 0) + textPos;
uv0 = new Vector2(uvRect.x, uvRect.y + uvRect.height);
_SetSpriteVertex(toFill, ++vertexIndex, position, uv0);
}
private void _ParseSpriteTags(string strText)
{
if (string.IsNullOrEmpty(strText) || -1 == strText.IndexOf("quad"))
{
_ResetSpriteTags(0);
return;
}
int index = 0;
foreach (Match match in SpriteTag.GetMatches(strText))
{
SpriteTag tag = _GetSpriteTag(index);
var isOk = tag.SetValue(match);
if (isOk)
{
++index;
}
}
_ResetSpriteTags(index);
}