106 lines
2.1 KiB
Go
106 lines
2.1 KiB
Go
package nori
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import (
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"encoding/binary"
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"io"
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)
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type Frame struct {
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Duration uint32
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PlaneCount uint32
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Planes []*Plane
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CoordinateCount uint32
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Coordinates [][2]uint32
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Unknown1 string
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SoundEffect string
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Unknown2 string
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HasCamp bool
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Camp struct {
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Params [7]uint32
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Array []byte
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Extra string
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}
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Version int
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}
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func NewFrame(version int) *Frame {
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return &Frame{Version: version}
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}
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func (f *Frame) Decode(rd io.Reader) error {
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if err := binary.Read(rd, end, &f.Duration); err != nil {
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return err
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}
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if err := binary.Read(rd, end, &f.PlaneCount); err != nil {
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return err
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}
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f.Planes = make([]*Plane, int(f.PlaneCount))
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for i := range f.Planes {
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f.Planes[i] = &Plane{}
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if err := f.Planes[i].Decode(rd); err != nil {
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return err
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}
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}
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if f.Version != 300 {
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if err := binary.Read(rd, end, &f.CoordinateCount); err != nil {
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return err
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}
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f.Coordinates = make([][2]uint32, f.CoordinateCount)
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for i := range f.Coordinates {
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if err := binary.Read(rd, end, f.Coordinates[i][:]); err != nil {
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return err
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}
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}
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}
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switch f.Version {
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case 300, 301:
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if err := discardN(rd, 144); err != nil {
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return err
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}
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case 302, 303:
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if err := discardN(rd, 96); err != nil {
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return err
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}
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}
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if f.Version >= 302 {
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// entry blocks
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if err := discardN(rd, 28*6); err != nil {
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return err
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}
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}
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// unknown1
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if err := discardN(rd, 44); err != nil {
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return err
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}
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//sound_effect
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if err := discardN(rd, 18); err != nil {
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return err
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}
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// unknown2
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if err := discardN(rd, 18); err != nil {
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return err
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}
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var cast uint32
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if err := binary.Read(rd, end, &cast); err != nil {
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return err
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}
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// camp
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f.HasCamp = (f.Version >= 303 && (cast > 0))
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if f.HasCamp {
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if err := binary.Read(rd, end, f.Camp.Params[:]); err != nil {
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return err
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}
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sz := int(f.Camp.Params[1]) * int(f.Camp.Params[2])
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f.Camp.Array = make([]byte, sz)
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if _, err := io.ReadFull(rd, f.Camp.Array); err != nil {
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return err
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}
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if err := discardN(rd, 20); err != nil {
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return err
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}
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}
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return nil
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}
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