osu

type Colours struct {
	Combos              [8]color.RGBA
	SliderTrackOverride color.RGBA
	SliderBorder        color.RGBA
}

type Difficulty struct {
	HPDrainRate       float64 `json:"hpDrainRate"`
	CircleSize        float64 `json:"circleSize"`
	OverallDifficulty float64 `json:"overallDifficulty"`
	ApproachRate      float64 `json:"approachRate"`
	SliderMultiplier  float64 `json:"sliderMultiplier"`
	SliderTickRate    float64 `json:"sliderTickRate"`
}

type Editor struct {
	Bookmarks       []int   // delimiter,
	DistanceSpacing float64 `json:"distanceSpacing"`
	BeatDivisor     float64 `json:"beatDivisor"`
	GridSize        int     `json:"gridSize"`
	TimelineZoom    float64 `json:"timelineZoom"`
}

type Event struct {
	Type      string
	StartTime int
	EndTime   int // optional
	Filename  string
	XOffset   int
	YOffset   int
}

type Events []Event

type Format struct {
	FormatVersion int `json:"formatVersion"`
	General
	Editor
	Metadata
	Difficulty
	Events
	TimingPoints
	Colours
	HitObjects
}

type General struct {
	AudioFilename            string  `json:"audioFilename"`
	AudioLeadIn              int     `json:"audioLeadIn"`
	AudioHash                string  `json:"audioHash"` // deprecated
	PreviewTime              int     `json:"previewTime"`
	Countdown                int     `json:"countdown"` // nofloat
	SampleSet                string  `json:"sampleSet"`
	StackLeniency            float64 `json:"stackLeniency"`
	Mode                     int     `json:"mode"` // nofloat
	LetterboxInBreaks        bool    `json:"letterboxInBreaks"`
	StoryFireInFront         bool    `json:"storyFireInFront"` // deprecated
	UseSkinSprites           bool    `json:"useSkinSprites"`
	AlwaysShowPlayfield      bool    `json:"alwaysShowPlayfield"` // deprecated
	OverlayPosition          string  `json:"overlayPosition"`
	SkinPreference           string  `json:"skinPreference"`
	EpilepsyWarning          bool    `json:"epilepsyWarning"`
	CountdownOffset          int     `json:"countdownOffset"`
	SpecialStyle             bool    `json:"specialStyle"`
	WidescreenStoryboard     bool    `json:"widescreenStoryboard"`
	SamplesMatchPlaybackRate bool    `json:"samplesMatchPlaybackRate"`
}

type HitObject struct {
	X            int          `json:"x"`
	Y            int          `json:"y"`
	Time         int          `json:"time"`
	NoteType     int          `json:"noteType"` // nofloat
	HitSound     int          `json:"hitSound"` // nofloat
	EndTime      int          `json:"endTime"`  // optional
	SliderParams SliderParams // optional
	HitSample    HitSample    // optional
}

type HitObjects []HitObject

type HitSample struct {
	NormalSet   int    `json:"normalSet"`   // nofloat
	AdditionSet int    `json:"additionSet"` // nofloat
	Index       int    `json:"index"`       // nofloat
	Volume      int    `json:"volume"`
	Filename    string `json:"filename"`
}

type Metadata struct {
	Title         string   `json:"title"`
	TitleUnicode  string   `json:"titleUnicode"`
	Artist        string   `json:"artist"`
	ArtistUnicode string   `json:"artistUnicode"`
	Creator       string   `json:"creator"`
	Version       string   `json:"version"`
	Source        string   `json:"source"`
	Tags          []string // delimiter(space)
	BeatmapID     int      `json:"beatmapID"`    // nofloat
	BeatmapSetID  int      `json:"beatmapSetID"` // nofloat
}

type SliderParams struct {
	CurveType   string   `json:"curveType"` // one letter
	CurvePoints [][2]int // delimiter| // delimiter: // slice of paired integers
	Slides      int      `json:"slides"`
	Length      float64  `json:"length"`
	EdgeSounds  []int    // delimiter|
	EdgeSets    [][2]int // delimiter| // delimiter:
}

type TimingPoint struct {
	Time        int     `json:"time"`
	BeatLength  float64 `json:"beatLength"`
	Meter       int     `json:"meter"`
	SampleSet   int     `json:"sampleSet"`   // nofloat
	SampleIndex int     `json:"sampleIndex"` // nofloat
	Volume      int     `json:"volume"`
	Uninherited bool    `json:"uninherited"`
	Effects     int     `json:"effects"` // nofloat
}

type TimingPoints []TimingPoint