pack

type Box struct {
	Name    string
	Padding int
	Size    image.Point
	Place   *image.Rectangle
}

type Font struct {
	Name      string
	Font      *truetype.Font
	Face      font.Face
	Padding   int
	MaxBounds fixed.Rectangle26_6
	Glyphs    map[rune]*Glyph
	Kern      map[[2]rune]fixed.Int26_6
}

type Glyph struct {
	Rune    rune
	Size    image.Point         // destination size in pixels
	Bounds  fixed.Rectangle26_6 // such that point + bounds, gives image bounds
	Advance fixed.Int26_6
	Place   image.Rectangle // without padding
}

type Image struct {
	Name string
	Data image.Image
	Size image.Point

	// extra info for GIF-s
	Animated bool
	Index    int // animation-only
	Delay    int // animation-only, ms

	// parameters
	Padding int
	Rotated bool
	SDF     bool

	// final location inside texture
	Place image.Rectangle
}