ase

type Cel struct {
	Layer   uint16     // The cel layer.
	Opacity byte       // The cel opacity.
	Type    CelType    // The cel type.
	Width   uint16     // The width of the cel in pixels.
	Height  uint16     // The height of the cel in pixels.
	Image   draw.Image // The cel image.
	Link    uint16     // The frame this cel is linked to.
}

type CelType uint16

type File struct {
	Width  uint16      // Width in pixels.
	Height uint16      // Height in pixels.
	Model  color.Model // Color model.
	Frames []Frame     // Frames.
	Layers []Layer     // Layers.
	Tags   []Tag       // Tags.
}

type Frame struct {
	Duration uint16 // The duration of the frame in milliseconds.
	Cels     []Cel  // Cels in the frame.
}

type Layer struct {
	Name    string
	Alpha   uint8
	Visible bool
}

type RenderOptions struct {
	PadX  int    // How much padding to put between each frame.
	Split Split  // How to split the file.
	Frame int    // The frame to render.
	Layer string // The layer to render.
	Tag   string // The tag to render.
}

type Split int

type Tag struct {
	From uint16 // First frame.
	To   uint16 // Last frame.
	Dir  byte   // Loop direction. 0 = Forward, 1 = Reverse, 2 = Ping-pong
	Name string // Tag name.
}