// Groove Coaster Android/arcade *_ext.dat
// LoadExtData starts reading at byte 6. Bytes after notes are not consumed by
// the recovered Android routine and are intentionally left untyped.

struct NoteTimingEntry {
    u32 timeMs;
    u32 mode;
    float value;
} [[single_color]];
struct NoteTimingList {
    u16 size;
    NoteTimingEntry entries[size];
} [[single_color]];

enum NoteType : u8 {
    NONE = 0,
    NORMAL = 1,
    FLICK = 2,
    HOLD = 3,
    SCRATCH = 4,
    BEAT = 5,
    MERRY_GO_ROUND = 6,
    HIDDEN = 7,
    HIDDEN2 = 8,
    CRITICAL = 9,
    SLIDE_HOLD = 10,
    SLIDE_COUNTER = 11,
    TURN = 12,
    SPIN = 13,
    FINISH = 14,
    DUAL_HOLD = 15,
};
struct Note {
    u32 timeMs;
    NoteType type;
    u8 typeOverride;
    s16 params16[9];
    u8 flag24;
    float params25[3];
    u8 flag37;
    u8 flag38;
    float params39[4];
    u32 params55[3];
    float param67;
    u32 param71;
    float params75[5];
    u32 param95;
} [[single_color]];

struct StageExtension {
    NoteTimingList noteTimings[4];
    u32 unknown;
    u32 noteCount;
    Note notes[noteCount];
};

u8 prefix[6] @ 0x00;
StageExtension extension @ 0x06;