/// <summary>
/// Creates a new <see cref="AsepritePaletteColor"/> instance.
/// </summary>
/// <param name="reader">
/// The <see cref="AsepriteReader"/> instance being used to read the
/// Aseprite file.
/// </param>
internal AsepritePaletteColor(AsepriteReader reader, bool isNewPalette)
{
if (isNewPalette)
{
// Only read flag if this is the new palette type.
_flag = (AsepritePaletteFlags)reader.ReadWORD();
}
Red = reader.ReadByte();
Green = reader.ReadByte();
Blue = reader.ReadByte();
if (isNewPalette)
{
// Only read alpha value if this is the new palette type
Alpha = reader.ReadByte();
}
else
{
Alpha = 255;
}
PackedValue = Utils.BytesToPacked(Red, Green, Blue, Alpha);
// If the HasName flag is present, we need to read the string value, however
// this seems to always never exist. Not sure what the field is for, but may
// just be some compatibility thing with named palette formats like .gpl.
if ((_flag & AsepritePaletteFlags.HasName) != 0)
{
Name = reader.ReadString();
}
}
/// <summary>
/// Creates a new <see cref="AsepriteLayerChunk"/> instance.
/// </summary>
/// <param name="reader">
/// The <see cref="AsepriteReader"/> instance being used to read the
/// Aseprite file.
/// </param>
internal AsepriteLayerChunk(AsepriteReader reader)
{
// Read the flags that are set for this layer.
Flags = (AsepriteLayerFlags)reader.ReadWORD();
// Read the type of layer we're dealing with.
Type = (AsepriteLayerType)reader.ReadWORD();
// Read the sub level of this layer. If this layer is not a
// child layer, this value will be 0.
ChildLevel = reader.ReadWORD();
// Per ase file spec, default layer width in pixels is ignored
_ = reader.ReadWORD();
// Per ase file spec, default layer height in pixels is ignored
_ = reader.ReadWORD();
// Read the blend mode used by this layer.
BlendMode = (AsepriteBlendMode)reader.ReadWORD();
// Read the opacity level for this layer.
Opacity = reader.ReadByte();
// Per ase file spec, ignroe next 3 bytes, they are reserved for future use
reader.Ignore(3);
// Read the name of this layer.
Name = reader.ReadString();
}
/// <summary>
/// Creates a new <see cref="AsepriteSliceChunk"/> instance.
/// </summary>
/// <param name="reader">
/// The <see cref="AsepriteReader"/> instance being used to read the
/// Aseprite file.
/// </param>
internal AsepriteSliceChunk(AsepriteReader reader)
{
TotalKeys = (int)reader.ReadDWORD();
Flags = (AsepriteSliceFlags)reader.ReadDWORD();
// Per ase file spec, ignore the next DWORD, it's "reserved"
_ = reader.ReadDWORD();
Name = reader.ReadString();
Keys = new AsepriteSliceKey[TotalKeys];
for (int i = 0; i < TotalKeys; i++)
{
Keys[i] = new AsepriteSliceKey(reader, Flags);
}
}
/// <summary>
/// Reads the userdata values for this chunk from the provided
/// reader.
/// </summary>
/// <param name="reader">
/// The <see cref="AsepriteReader"/> instance being used to read the
/// Aseprite file.
/// </param>
internal void ReadUserData(AsepriteReader reader)
{
AsepriteUserDataFlags flags = (AsepriteUserDataFlags)reader.ReadDWORD();
if ((flags & AsepriteUserDataFlags.HasText) != 0)
{
UserDataText = reader.ReadString();
}
if ((flags & AsepriteUserDataFlags.HasColor) != 0)
{
UserDataColor = new byte[4];
UserDataColor[0] = reader.ReadByte();
UserDataColor[1] = reader.ReadByte();
UserDataColor[2] = reader.ReadByte();
UserDataColor[3] = reader.ReadByte();
}
}
/// <summary>
/// Creates a new <see cref="AsepriteTagChunk"/> instance.
/// </summary>
/// <param name="reader">
/// The <see cref="AsepriteReader"/> instance being used to read the
/// Aseprite file.
/// </param>
internal AsepriteTagChunk(AsepriteReader reader)
{
From = reader.ReadWORD();
To = reader.ReadWORD();
Direction = (AsepriteLoopDirection)reader.ReadByte();
// Per ase file spec, ignore next 8 bytes, they are reserved for future use
reader.Ignore(8);
ColorR = reader.ReadByte();
ColorG = reader.ReadByte();
ColorB = reader.ReadByte();
// Per ase file spec, ignore next byte, it's just an extra one set to zero
reader.Ignore(1);
Name = reader.ReadString();
}