public void Build_SequentialArranger()
{
var codecFactory = new CodecFactory(new());
var memorySource = new MemoryDataSource("TestMemoryFile", 2 * 256 * 512);
SequentialArranger arranger = ArrangerBuilder
.WithSingleLayout()
.WithElementPixelSize(256, 512)
.WithPixelColorType(PixelColorType.Direct)
.WithName("SequentialTestArranger")
.AsSequentialArranger(codecFactory)
.WithDataFile(memorySource)
.WithCodecName("PSX 16bpp")
.Build();
Assert.That(arranger.Layout == ElementLayout.Single);
Assert.That(arranger.ArrangerElementSize == new Size(1, 1));
Assert.That(arranger.ElementPixelSize == new Size(256, 512));
Assert.That(arranger.ColorType == PixelColorType.Direct);
Assert.That(arranger.Name == "SequentialTestArranger");
Assert.That(arranger.ActiveCodec.Name == "PSX 16bpp");
Assert.That(arranger.ActiveCodec.ColorType == PixelColorType.Direct);
Assert.That(arranger.ActiveCodec.Layout == ImageLayout.Single);
Assert.That(arranger.ActiveCodec.Width == 256);
Assert.That(arranger.ActiveCodec.Height == 512);
Assert.That(arranger.ActivePalette is null);
Assert.That(arranger.ActiveDataSource.Name == "TestMemoryFile");
}
/// <summary>
/// Moves a Sequential Arranger's file position and updates each Element
/// Will not move outside of the bounds of the underlying file
/// </summary>
/// <param name="moveType">Type of move requested</param>
/// <returns>Updated address of first element</returns>
public static BitAddress Move(this SequentialArranger arranger, ArrangerMoveType moveType)
{
if (arranger.Mode != ArrangerMode.Sequential)
{
throw new InvalidOperationException($"{nameof(Move)}: Arranger {arranger.Name} is not in sequential mode");
}
var initialAddress = arranger.Address;
var newAddress = initialAddress;
long bitDelta = 0;
var patternWidth = arranger.TileLayout?.Width ?? 1;
var patternHeight = arranger.TileLayout?.Height ?? 1;
switch (moveType) // Calculate the new address based on the movement command. Negative and post-EOF addresses are handled after the switch
{
case ArrangerMoveType.ByteDown:
newAddress += 8;
break;
case ArrangerMoveType.ByteUp:
newAddress -= 8;
break;
case ArrangerMoveType.RowDown:
if (arranger.Layout == ElementLayout.Tiled)
{
bitDelta = arranger.ArrangerElementSize.Width * arranger.ActiveCodec.StorageSize * patternHeight;
}
else if (arranger.Layout == ElementLayout.Single)
{
bitDelta = arranger.ActiveCodec.StorageSize / arranger.ArrangerPixelSize.Height;
}
newAddress += bitDelta;
break;
case ArrangerMoveType.RowUp:
if (arranger.Layout == ElementLayout.Tiled)
{
bitDelta = arranger.ArrangerElementSize.Width * arranger.ActiveCodec.StorageSize * patternHeight;
}
else if (arranger.Layout == ElementLayout.Single)
{
bitDelta = arranger.ActiveCodec.StorageSize / arranger.ArrangerPixelSize.Height;
}
newAddress -= bitDelta;
break;
case ArrangerMoveType.ColRight:
if (arranger.Layout == ElementLayout.Tiled)
{
bitDelta = arranger.ActiveCodec.StorageSize * patternWidth * patternHeight;
}
else if (arranger.Layout == ElementLayout.Single)
{
bitDelta = 16 * arranger.ActiveCodec.StorageSize * arranger.ActiveCodec.Height / arranger.ActiveCodec.Width;
}
newAddress += bitDelta;
break;
case ArrangerMoveType.ColLeft:
if (arranger.Layout == ElementLayout.Tiled)
{
bitDelta = arranger.ActiveCodec.StorageSize * patternWidth * patternHeight;
}
else if (arranger.Layout == ElementLayout.Single)
{
bitDelta = 16 * arranger.ActiveCodec.StorageSize * arranger.ActiveCodec.Height / arranger.ActiveCodec.Width;
}
newAddress -= bitDelta;
break;
case ArrangerMoveType.PageDown:
if (arranger.Layout == ElementLayout.Tiled)
{
bitDelta = arranger.ArrangerElementSize.Width * arranger.ActiveCodec.StorageSize * arranger.ArrangerElementSize.Height / 2;
}
else if (arranger.Layout == ElementLayout.Single)
{
bitDelta = arranger.ActiveCodec.StorageSize / 2;
}
newAddress += bitDelta;
break;
case ArrangerMoveType.PageUp:
if (arranger.Layout == ElementLayout.Tiled)
{
bitDelta = arranger.ArrangerElementSize.Width * arranger.ActiveCodec.StorageSize * arranger.ArrangerElementSize.Height / 2;
}
else if (arranger.Layout == ElementLayout.Single)
{
bitDelta = arranger.ActiveCodec.StorageSize / 2;
}
newAddress -= bitDelta;
break;
case ArrangerMoveType.Home:
newAddress = BitAddress.Zero;
break;
case ArrangerMoveType.End:
newAddress = new BitAddress(arranger.FileSize * 8 - arranger.ArrangerBitSize);
break;
}
var maxAddress = new BitAddress(arranger.FileSize * 8 - arranger.ArrangerBitSize);
if (maxAddress.Offset < 0)
{
maxAddress = BitAddress.Zero;
}
newAddress = new BitAddress(Math.Clamp(newAddress.Offset, 0, maxAddress.Offset));
if (initialAddress != newAddress)
{
newAddress = arranger.Move(newAddress);
}
return(newAddress);
}
