asefile

type AsepriteCelChunk2005 struct {
	LayerIndex   uint16
	X, Y         int16
	OpacityLevel byte
	CelType      uint16

	// + For cel type = 0 (Raw Image Data)
	WidthInPix, HeightInPix uint16
	RawPixData              []byte
	// + For cel type = 1 (Linked Cel)
	FramePosToLinkWith uint16
	// + For cel type = 2 (Compressed Image)
	// WORD      Width in pixels
	// WORD      Height in pixels
	RawCelData []byte // "Raw Cel" data decompressed from ZLIB (see NOTE.3)
	// + For cel type = 3 (Compressed Tilemap)
	WidthInTiles, HeightInTiles uint16
	BitsPerTile                 uint16 // (at the moment it's always 32-bit per tile)
	BitMaskForTileID            uint32 // (e.g. 0x1fffffff for 32-bit tiles)
	BitMaskForXFlip             uint32
	BitMaskForYFlip             uint32
	BitMaskFor90CWRot           uint32

	Tiles []byte // zlib data (see NOTE.3)
	Extra *AsepriteCelExtraChunk2006
	// contains filtered or unexported fields
}

type AsepriteCelExtraChunk2006 struct {
	Flags              uint32
	PreciseX, PreciseY uint32
	WidthCelInSprite   uint32
	HeightCelInSprite  uint32
	// contains filtered or unexported fields
}

type AsepriteCodec interface {
	Decode(r io.Reader) error
	Encode(w io.Writer)
}

type AsepriteColorProfileChunk2007 struct {
	Type       uint16
	Flags      uint16
	FixedGamma uint32

	// + If type = ICC:
	ICCProfileDatLen uint32
	ICCProfileDat    []byte
	// contains filtered or unexported fields
}

type AsepriteExternalFilesChunk2008 struct {
	NumEntries uint32

	// + for each entry
	ExternalFile []AsepriteExternalFilesChunk2008Entry
	// contains filtered or unexported fields
}

type AsepriteExternalFilesChunk2008Entry struct {
	EntryID uint32

	ExternalFilename string
	// contains filtered or unexported fields
}

type AsepriteFile struct {
	Header AsepriteHeader
	Frames []AsepriteFrame
}

type AsepriteFrame struct {
	BytesThisFrame            uint32
	MagicNumber               uint16 // F1FA
	ChunksThisFrame           uint16 // If this value is FFFF there "may" be more chunks to read
	FrameDurationMilliseconds uint16

	ChunksThisFrameExt uint32 // New field which specifies num chunks. If 0, use old field
	OldPalettes0004    []AsepriteOldPaletteChunk0004
	OldPalettes0011    []AsepritePaletteChunk0011
	Layers             []AsepriteLayerChunk2004
	Cels               []AsepriteCelChunk2005
	ColorProfiles      []AsepriteColorProfileChunk2007
	Tags               AsepriteTagsChunk2018
	Palettes           []AsepritePaletteChunk2019
	Slices             []AsepriteSliceChunk2022
	// contains filtered or unexported fields
}

type AsepriteHeader struct {
	FileSize       uint32
	MagicNumber    uint16 // A5E0
	Frames         uint16
	WidthInPixels  uint16
	HeightInPixels uint16
	ColorDepth     uint16
	Flags          uint32
	Speed          uint16 // deprecated, use frame duration from frame header

	PaletteEntry byte // represents transparent color in all non-background layers (only for indexed sprites)

	NumberOfColors uint16
	// (pixel ratio is "pxel width/pixel height")
	PixelWidth, PixelHeight byte
	XPositionOfGrid         int16
	YPositionOfGrid         int16
	GridWidth, GridHeight   uint16
	// contains filtered or unexported fields
}

type AsepriteLayerChunk2004 struct {
	Flags                uint16
	LayerType            uint16
	LayerChildLevel      uint16
	DefLayerWidthPixels  uint16 // (ignored)
	DefLayerHeightPixels uint16 // (ignored)
	BlendMode            uint16
	Opacity              byte // only valid if file headre flag field has bit 1 set

	LayerName string
	// + if layer type = 2
	TilesetIndex uint32
	UserData     AsepriteUserDataChunk2020
	// contains filtered or unexported fields
}

type AsepriteMaskChunk2016 struct {
	X, Y          int16
	Width, Height uint16

	MaskName   string
	BitMapData []byte
	// contains filtered or unexported fields
}

type AsepriteOldPaletteChunk0004 struct {
	NumberOfPackets uint16
	// + for each packet
	Packets []AsepriteOldPaletteChunk0004Packet
}

type AsepriteOldPaletteChunk0004Packet struct {
	NumPalletteEntriesToSkip byte // from thee last packet (start from 0)
	NumColorsInThePacket     byte // 0 means 256
	//   + for each color in the packet
	Colors []AsepriteRGB24
}

type AsepritePaletteChunk0011 struct {
	NumberOfPackets uint16
	// + for each packet
	Packets []AsepritePaletteChunk0011Packet
}

type AsepritePaletteChunk0011Packet struct {
	NumPalletteEntriesToSkip byte // start from 0
	NumColorsInThePacket     byte // 0 means 256
	// + for each color in the packet
	Colors []AsepriteRGB24 // but using colors in the range 0-63
}

type AsepritePaletteChunk2019 struct {
	PaletteSize           uint32
	FirstColIndexToChange uint32
	LastColIndexToChange  uint32

	// + For each palette entry in [from,to] range (to-from+1 entries)
	PaletteEntries []AsepritePaletteChunk2019Entry
	// contains filtered or unexported fields
}

type AsepritePaletteChunk2019Entry struct {
	EntryFlags uint16
	R, G, B, A byte
	// + If has name bit in entry flags
	ColorName string
}

type AsepritePathChunk2017 struct{}

type AsepriteRGB24 struct {
	R, G, B byte
}

type AsepriteSliceChunk2022 struct {
	NumSliceKeys uint32
	Flags        uint32

	Name string
	// + For each slice key
	SliceKeysData []AsepriteSliceChunk2022Data
	UserData      AsepriteUserDataChunk2020
	// contains filtered or unexported fields
}

type AsepriteSliceChunk2022Data struct {
	FrameNumber             uint32
	SliceXOriginCoords      int32
	SliceYOriginCoords      int32
	SliceWidth, SliceHeight uint32
	// + If flags have bit 1
	CenterX, CenterY          int32
	CenterWidth, CenterHeight uint32
	// + If flags have bit 2
	PivotX, PivotY int32
	// contains filtered or unexported fields
}

type AsepriteTagsChunk2018 struct {
	NumTags uint16

	Tags     []AsepriteTagsChunk2018Tag
	UserData []AsepriteUserDataChunk2020
	// contains filtered or unexported fields
}

type AsepriteTagsChunk2018Tag struct {
	FromFrame, ToFrame uint16
	LoopAnimDirection  byte

	TagColor  [3]byte // deprecated
	ExtraByte byte    // (zero)
	TagName   string
	// contains filtered or unexported fields
}

type AsepriteTilesetChunk2023 struct {
	TilesetID             uint32
	Flags                 uint32
	NumTiles              uint32
	TileWidth, TileHeight uint16
	BaseIndex             int16

	Name string
	// + If flag 1 is set
	ExternalFileID          uint32
	TilesetIDInExternalFile uint32
	// + If flag 2 is set
	CompressedDatLen     uint32
	CompressedTilesetImg []byte
	// contains filtered or unexported fields
}

type AsepriteUserDatHolder interface {
	AddUserData(AsepriteUserDataChunk2020)
}

type AsepriteUserDataChunk2020 struct {
	Flags uint32
	// + If flags have bit 1
	Text string
	// + If flags have bit 2
	R, G, B, A byte
}