/// <summary>
/// At first this method looks if there is <see cref="CharCache"/> for a given height.
/// If not - the method creates such <see cref="CharCache"/>.
/// The rest of the logic is on <see cref="CharCache"/>.
/// </summary>
/// <param name="code">Char to obtain.</param>
/// <param name="heightHint">Desired height. It will be rounded to int to reduce number of caches.</param>
/// <returns></returns>
public FontChar Get(char code, float heightHint)
{
var roundedHeight = (heightHint * Window.Current.PixelScale).Round();
CharCache charChache;
if (!charCaches.TryGetValue(roundedHeight, out charChache))
{
charCaches[roundedHeight] = charChache = new CharCache(roundedHeight, fontRenderer, textures);
}
var c = charChache.Get(code);
if (c.Texture == null)
{
c.Texture = textures[c.TextureIndex];
}
return(c);
}
/// <summary>
/// Generates Tangerine Font.
/// </summary>
/// <param name="config"> Tangerine Font Config. </param>
/// <param name="assetDirectory"> Path to asset directory. </param>
/// <param name="outputPath"> Path for Tangerine Font and it's textures </param>
public static void GenerateFont(TftConfig config, string assetDirectory, string outputPath)
{
var fontCharCollection = new FontCharCollection();
var chars = new CharCache(config.Height, null, fontCharCollection.Textures)
{
Padding = config.Padding,
MinTextureSize = config.TextureSize,
MaxTextureSize = config.TextureSize,
};
var missingCharacters = new List <char>();
var margin = new Vector2(config.Margin * .5f);
foreach (var charSet in config.CharSets)
{
var fontPath = AssetPath.Combine(assetDirectory, charSet.Font);
if (!File.Exists(fontPath))
{
Console.WriteLine($"Missing font: {fontPath}\n Please ensure font existence!!!");
return;
}
var fontData = File.ReadAllBytes(fontPath);
chars.FontRenderer = new FontRenderer(fontData)
{
LcdSupported = false
};
missingCharacters.Clear();
foreach (var c in charSet.Chars)
{
if (config.ExcludeChars.Any(character => character == c))
{
continue;
}
var fontChar = chars.Get(c);
if (fontChar == FontChar.Null)
{
missingCharacters.Add(c);
continue;
}
fontChar.ACWidths += margin;
if (config.IsSdf)
{
fontChar.ACWidths *= config.SdfScale;
fontChar.Height *= config.SdfScale;
fontChar.Width *= config.SdfScale;
fontChar.Padding *= config.SdfScale;
fontChar.VerticalOffset *= config.SdfScale;
if (fontChar.KerningPairs != null)
{
for (int i = 0; i < fontChar.KerningPairs.Count; i++)
{
var pair = fontChar.KerningPairs[i];
pair.Kerning *= config.SdfScale;
fontChar.KerningPairs[i] = pair;
}
}
}
fontCharCollection.Add(fontChar);
}
if (missingCharacters.Count > 0)
{
Console.WriteLine($"Characters: {string.Join("", missingCharacters)} -- are missing in font {charSet.Font}");
}
GenerateKerningPairs(fontCharCollection, chars.FontRenderer.Face, config);
}
if (config.IsSdf)
{
foreach (var texture in fontCharCollection.Textures)
{
SdfConverter.ConvertToSdf(texture.GetPixels(), texture.ImageSize.Width, texture.ImageSize.Height, config.Padding / 2);
}
}
using (var font = new Font(fontCharCollection)) {
SaveAsTft(font, config, assetDirectory, outputPath);
}
}