void GenerateRects(int cellWidth, int cellHeight, int totalFrames, int padding, int cellOffset = 0)
{
_atlasData.Clear();
_hasSlicedContent = true;
var cols = _textureSize.X / cellWidth;
var rows = _textureSize.Y / cellHeight;
var i = 0;
for (var y = 0; y < rows; y++)
{
for (var x = 0; x < cols; x++)
{
// skip everything before the first cellOffset
if (i++ < cellOffset)
{
continue;
}
var padX = padding * x;
var padY = padding * y;
_atlasData.SourceRects.Add(new Rectangle(x * cellWidth + padX, y * cellHeight + padY, cellWidth, cellHeight));
_atlasData.Names.Add($"F{i}");
_atlasData.Origins.Add(Vector2Ext.HalfVector());
// once we hit the max number of cells to include bail out. were done.
if (_atlasData.SourceRects.Count == totalFrames)
{
return;
}
}
}
}