piano

type Asset struct {
	// asset that are not affected by key count
	ScoreSprites            [13]draws.Sprite // numbers with sign (. , %)
	ComboSprites            [10]draws.Sprite
	JudgmentAnimations      [4]draws.Animation
	DefaultHitSoundStreamer audios.StreamSeekCloser
	DefaultHitSoundFormat   audios.Format

	// asset for a field
	FieldSprite draws.Sprite
	HintSprite  draws.Sprite // bottom: hit position
	BarSprite   draws.Sprite // bottom: hit position

	// asset for each key
	KeyKindNoteTypeAnimations [][4]draws.Animation // bottom: hit position
	KeySprites                [][2]draws.Sprite    // top: hit position
	KeyLightingSprites        []draws.Sprite
	KeyLightingColors         []color.Color
	HitLightingAnimations     []draws.Animation
	HoldLightingAnimations    []draws.Animation
}

type Bar struct {
	Time int32 // Times are in milliseconds.

	Position float64
	Next     *Bar
	Prev     *Bar
}

type Chart struct {
	mode.ChartHeader
	KeyCount int // same with ChartHeader.SubMode

	Dynamics []*mode.Dynamic
	Notes    []*Note
	Bars     []*Bar
}

type Config struct {
	// settings exported from parent configuration
	ScreenSize  *draws.Vector2
	MusicVolume *float64
	SoundVolume *float64
	MusicOffset *int32

	// logic-affecting settings
	Mods Mods

	KeySettings       map[int][]string
	SpeedScale        float64
	HitPosition       float64
	TailExtraDuration float64

	// others
	KeyKindWidths         [4]float64
	FieldWidthScales      map[int]float64
	NoteHeigth            float64 // Applies to all types of notes.
	FieldPosition         float64
	ComboPosition         float64
	JudgmentPosition      float64
	ScratchColor          color.NRGBA
	FieldOpacity          float64
	KeyKindLightingColors [4]color.NRGBA
	HitLightingOpacity    float64
	HoldLightingOpacity   float64

	ScoreSpriteScale    float64
	ComboSpriteScale    float64
	ComboDigitGap       float64
	JudgmentSpriteScale float64
	HintHeight          float64
	LightingSpriteScale float64
}

type KeyKind int

type Mods struct{}

type Note struct {
	Time     int32
	Type     int
	Key      int
	Sample   mode.Sample
	Duration int32

	Position float64 // Scaled x or y value.
	Next     *Note
	Prev     *Note // For accessing to Head from Tail.

	Strain float64 // Strain is for calculating difficulty.
	// contains filtered or unexported fields
}

type ScenePlay struct {
	*Config
	*Asset
	Mods
	*Chart

	mode.Timer

	*input.Keyboard
	input.KeyboardReader // for replay

	audios.SoundMap

	Scorer
	Dynamic *mode.Dynamic // Todo: Dynamic -> dynamic
	// contains filtered or unexported fields
}

type Scorer struct {
	Combo          int
	Score          float64
	JudgmentCounts []int
	// contains filtered or unexported fields
}

type ScratchMode int