public void FreeArea(TexArea area)
{
if (Slices.Count <= area.Data.Slice || area.Data.Slice < 0)
{
return;
}
Slices[area.Data.Slice].FreeArea(area);
}
public TexSlice(int w, int h, int slice)
{
Width = w;
Height = h;
Slice = slice;
var full = new TexArea();
full.Data.Slice = Slice;
full.Data.X = 0;
full.Data.Y = 0;
full.Data.Width = w;
full.Data.Height = h;
full.IsFree = true;
FreeAreas.Add(full);
}
public void FreeArea(TexArea area)
{
if (ValidAreas.Contains(area))
{
FreeAreas.Add(area);
//sort free areas
FreeAreas.Sort((left, right) =>
{
return(left.GetArea() - right.GetArea());
});
}
else
{
Profiler.Log.WriteLine(Profiler.ELogTag.Warning, "TextureAtlas", $"TexArea {area} free failed");
}
}
public TexArea SplitArea(TexArea area, int w, int h)
{
if (area.Data.Width == w && area.Data.Height == h)
{
return(area);
}
var result = new TexArea();
result.Data.Slice = Slice;
result.Data.X = area.Data.X;
result.Data.Y = area.Data.Y;
result.Data.Width = w;
result.Data.Height = h;
result.IsFree = false;
if (area.Data.Width - w >= area.Data.Height - h)
{
var n1 = new TexArea();
n1.Data.Slice = Slice;
n1.Data.X = area.Data.X + w;
n1.Data.Y = area.Data.Y;
n1.Data.Width = area.Data.Width - w;
n1.Data.Height = area.Data.Height;
n1.IsFree = true;
var n2 = new TexArea();
n2.Data.Slice = Slice;
n2.Data.X = area.Data.X;
n2.Data.Y = area.Data.Y + h;
n2.Data.Width = w;
n2.Data.Height = area.Data.Height - h;
n2.IsFree = true;
if (n1.Data.Width > 0)
{
FreeAreas.Add(n1);
}
if (n2.Data.Height > 0)
{
FreeAreas.Add(n2);
}
}
else
{
var n1 = new TexArea();
n1.Data.Slice = Slice;
n1.Data.X = area.Data.X + w;
n1.Data.Y = area.Data.Y;
n1.Data.Width = area.Data.Width - w;
n1.Data.Height = h;
n1.IsFree = true;
var n2 = new TexArea();
n2.Data.Slice = Slice;
n2.Data.X = area.Data.X;
n2.Data.Y = area.Data.Y + h;
n2.Data.Width = area.Data.Width;
n2.Data.Height = area.Data.Height - h;
n2.IsFree = true;
if (n1.Data.Width > 0)
{
FreeAreas.Add(n1);
}
if (n2.Data.Height > 0)
{
FreeAreas.Add(n2);
}
}
return(result);
}
