public DicedTexture Dice(SourceTexture source)
{
var texture = source.Texture;
var units = new List <DicedUnit>();
var unitCountX = Mathf.CeilToInt((float)texture.width / unitSize);
var unitCountY = Mathf.CeilToInt((float)texture.height / unitSize);
for (int unitX = 0; unitX < unitCountX; unitX++)
{
for (int unitY = 0; unitY < unitCountY; unitY++)
{
var x = unitX * unitSize;
var y = unitY * unitSize;
var pixelsRect = new RectInt(x, y, unitSize, unitSize);
var pixels = GetPixels(texture, pixelsRect);
if (pixels.All(p => p.a == 0))
{
continue;
}
var paddedRect = PadRect(pixelsRect, padding);
var paddedPixels = GetPixels(texture, paddedRect);
var quadVerts = CropOverBorders(pixelsRect, x, y, texture);
var hash = GetHash(unitSize, pixels);
var dicedUnit = new DicedUnit(quadVerts, paddedPixels, hash);
units.Add(dicedUnit);
}
}
return(new DicedTexture(source, units));
}
public DicedTexture(SourceTexture source, IEnumerable <DicedUnit> units)
{
Source = source;
Units = units?.ToArray() ?? throw new ArgumentNullException(nameof(units));
UniqueUnits = Units.Distinct().ToArray();
}