66 lines
1.1 KiB
Go
66 lines
1.1 KiB
Go
package dcc
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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 Sprite struct {
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}
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type bounds struct {
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x1 int
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y1 int
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x2 int
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y2 int
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}
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type fileHeader struct {
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Signature uint8
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Version uint8
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DirCount uint8
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FramesPerDir uint32
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Tag uint32
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FinalDc6Size uint32
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}
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type pixelBufferEntry struct {
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values [4]byte
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}
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func NewFromReader(reader io.ReadSeeker) (*Sprite, error) {
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var fileHead fileHeader
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if err := binary.Read(reader, binary.LittleEndian, &fileHead); err != nil {
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return nil, err
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}
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var directions []direction
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for i := 0; i < int(fileHead.DirCount); i++ {
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var offsetDir uint32
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if err := binary.Read(reader, binary.LittleEndian, &offsetDir); err != nil {
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return nil, err
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}
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offset, err := reader.Seek(0, io.SeekCurrent)
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if err != nil {
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return nil, err
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}
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if _, err := reader.Seek(int64(offsetDir), io.SeekStart); err != nil {
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return nil, err
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}
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dirData, err := readDirection(reader, fileHead)
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if err != nil {
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return nil, err
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}
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directions = append(directions, *dirData)
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if _, err := reader.Seek(offset, io.SeekStart); err != nil {
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return nil, err
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}
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}
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return nil, nil
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}
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