/// <summary>
/// Search through the given list of sprite assets and fallbacks for a sprite whose unicode value matches the target unicode.
/// </summary>
/// <param name="spriteAssets"></param>
/// <param name="unicode"></param>
/// <param name="includeFallbacks"></param>
/// <param name="spriteIndex"></param>
/// <returns></returns>
private static SpriteAsset SearchForSpriteByUnicodeInternal(List <SpriteAsset> spriteAssets, uint unicode, bool includeFallbacks, out int spriteIndex)
{
for (int i = 0; i < spriteAssets.Count; i++)
{
SpriteAsset temp = spriteAssets[i];
if (temp == null)
{
continue;
}
int id = temp.GetInstanceID();
// Skip sprite asset if it has already been searched.
if (k_searchedSpriteAssets.Add(id) == false)
{
continue;
}
temp = SearchForSpriteByUnicodeInternal(temp, unicode, includeFallbacks, out spriteIndex);
if (temp != null)
{
return(temp);
}
}
spriteIndex = -1;
return(null);
}
/// <summary>
/// Search through the given sprite asset and its fallbacks for the specified sprite matching the given unicode character.
/// </summary>
/// <param name="spriteAsset">The sprite asset asset to search for the given unicode.</param>
/// <param name="unicode">The unicode character to find.</param>
/// <param name="includeFallbacks">Include fallback sprite assets in the search?</param>
/// <param name="spriteIndex">The index of the sprite in the sprite asset (if found)</param>
/// <returns></returns>
public static SpriteAsset SearchForSpriteByUnicode(SpriteAsset spriteAsset, uint unicode, bool includeFallbacks, out int spriteIndex)
{
// Check to make sure sprite asset is not null
if (spriteAsset == null)
{
spriteIndex = -1; return(null);
}
// Get sprite index for the given unicode
spriteIndex = spriteAsset.GetSpriteIndexFromUnicode(unicode);
if (spriteIndex != -1)
{
return(spriteAsset);
}
// Initialize list to track instance of Sprite Assets that have already been searched.
if (k_searchedSpriteAssets == null)
{
k_searchedSpriteAssets = new HashSet <int>();
}
else
{
k_searchedSpriteAssets.Clear();
}
// Get instance ID of sprite asset and add to list.
int id = spriteAsset.GetInstanceID();
k_searchedSpriteAssets.Add(id);
// Search potential fallback sprite assets if includeFallbacks is true.
if (includeFallbacks && spriteAsset.fallbackSpriteAssets != null && spriteAsset.fallbackSpriteAssets.Count > 0)
{
return(SearchForSpriteByUnicodeInternal(spriteAsset.fallbackSpriteAssets, unicode, true, out spriteIndex));
}
// Search default sprite asset potentially assigned in the TMP Settings.
//if (includeFallbacks && TMP_Settings.defaultSpriteAsset != null)
// return SearchForSpriteByUnicodeInternal(TMP_Settings.defaultSpriteAsset, unicode, true, out spriteIndex);
spriteIndex = -1;
return(null);
}