d2datautils

package
v0.0.0-...-7f92c57 Latest Latest
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 Go to latest Published: Oct 21, 2021 License: GPL-3.0 Imports: 3 Imported by: 12

Documentation

Overview

Package d2datautils is a utility package that provides helper functions/classes for parsing the original diablo2 files. (eg. parsers for binary files that aren't byte-aligned)

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type BitMuncher 

type BitMuncher struct {
	// contains filtered or unexported fields
}

BitMuncher is used for parsing files that are not byte-aligned such as the DCC files.

func CopyBitMuncher 

func CopyBitMuncher(source *BitMuncher) *BitMuncher

CopyBitMuncher Creates a copy of the source BitMuncher

func CreateBitMuncher 

func CreateBitMuncher(data []byte, offset int) *BitMuncher

CreateBitMuncher Creates a BitMuncher

func (*BitMuncher) BitsRead 

func (v *BitMuncher) BitsRead() int

BitsRead returns the number of bits the BitMuncher has read

func (BitMuncher) Copy 

func (v BitMuncher) Copy() *BitMuncher

Copy returns a copy of a BitMuncher

func (*BitMuncher) GetBit 

func (v *BitMuncher) GetBit() uint32

GetBit reads a bit and returns it as uint32

func (*BitMuncher) GetBits 

func (v *BitMuncher) GetBits(bits int) uint32

GetBits given a number of bits to read, reads that number of bits and retruns as a uint32

func (*BitMuncher) GetByte 

func (v *BitMuncher) GetByte() byte

GetByte reads a byte from data

func (*BitMuncher) GetInt32 

func (v *BitMuncher) GetInt32() int32

GetInt32 reads an int32 from data

func (*BitMuncher) GetSignedBits 

func (v *BitMuncher) GetSignedBits(bits int) int

GetSignedBits Given a number of bits, reads that many bits and returns as int

func (*BitMuncher) GetUInt32 

func (v *BitMuncher) GetUInt32() uint32

GetUInt32 reads an unsigned uint32 from data

func (*BitMuncher) Init 

func (v *BitMuncher) Init(data []byte, offset int) *BitMuncher

Init initializes the BitMuncher with data and an offset

func (*BitMuncher) MakeSigned 

func (v *BitMuncher) MakeSigned(value uint32, bits int) int32

MakeSigned converts a uint32 value into an int32

func (*BitMuncher) Offset 

func (v *BitMuncher) Offset() int

Offset returns the offset of the BitMuncher

func (*BitMuncher) SetBitsRead 

func (v *BitMuncher) SetBitsRead(n int)

SetBitsRead sets the number of bits the BitMuncher has read

func (*BitMuncher) SetOffset 

func (v *BitMuncher) SetOffset(n int)

SetOffset sets the offset of the BitMuncher

func (*BitMuncher) SkipBits 

func (v *BitMuncher) SkipBits(bits int)

SkipBits skips bits, incrementing the offset and bits read

type BitStream 

type BitStream struct {
	// contains filtered or unexported fields
}

BitStream is a utility class for reading groups of bits from a stream

func CreateBitStream 

func CreateBitStream(newData []byte) *BitStream

CreateBitStream creates a new BitStream

func (*BitStream) EnsureBits 

func (v *BitStream) EnsureBits(bitCount int) bool

EnsureBits ensures that the specified number of bits are available

func (*BitStream) PeekByte 

func (v *BitStream) PeekByte() int

PeekByte returns the current byte without adjusting the position

func (*BitStream) ReadBits 

func (v *BitStream) ReadBits(bitCount int) int

ReadBits reads the specified number of bits and returns the value

func (*BitStream) WasteBits 

func (v *BitStream) WasteBits(bitCount int)

WasteBits dry-reads the specified number of bits

type StreamReader 

type StreamReader struct {
	// contains filtered or unexported fields
}

StreamReader allows you to read data from a byte array in various formats

func CreateStreamReader 

func CreateStreamReader(source []byte) *StreamReader

CreateStreamReader creates an instance of the stream reader

func (*StreamReader) EOF 

func (v *StreamReader) EOF() bool

EOF returns if the stream position is reached to the end of the data, or not

func (*StreamReader) Position 

func (v *StreamReader) Position() uint64

Position returns the current stream position

func (*StreamReader) Read 

func (v *StreamReader) Read(p []byte) (n int, err error)

Read implements io.Reader

func (*StreamReader) ReadByte 

func (v *StreamReader) ReadByte() (byte, error)

ReadByte reads a byte from the stream

func (*StreamReader) ReadBytes 

func (v *StreamReader) ReadBytes(count int) ([]byte, error)

ReadBytes reads multiple bytes

func (*StreamReader) ReadInt16 

func (v *StreamReader) ReadInt16() (int16, error)

ReadInt16 returns a int16 word from the stream

func (*StreamReader) ReadInt32 

func (v *StreamReader) ReadInt32() (int32, error)

ReadInt32 returns an int32 dword from the stream

func (*StreamReader) ReadInt64 

func (v *StreamReader) ReadInt64() (int64, error)

ReadInt64 returns a uint64 qword from the stream

func (*StreamReader) ReadUInt16 

func (v *StreamReader) ReadUInt16() (uint16, error)

ReadUInt16 returns a uint16 word from the stream

func (*StreamReader) ReadUInt32 

func (v *StreamReader) ReadUInt32() (uint32, error)

ReadUInt32 returns a uint32 dword from the stream nolint

func (*StreamReader) ReadUInt64 

func (v *StreamReader) ReadUInt64() (uint64, error)

ReadUInt64 returns a uint64 qword from the stream nolint

func (*StreamReader) SetPosition 

func (v *StreamReader) SetPosition(newPosition uint64)

SetPosition sets the stream position with the given position

func (*StreamReader) Size 

func (v *StreamReader) Size() uint64

Size returns the total size of the stream in bytes

func (*StreamReader) SkipBytes 

func (v *StreamReader) SkipBytes(count int)

SkipBytes moves the stream position forward by the given amount

type StreamWriter 

type StreamWriter struct {
	// contains filtered or unexported fields
}

StreamWriter allows you to create a byte array by streaming in writes of various sizes

func CreateStreamWriter 

func CreateStreamWriter() *StreamWriter

CreateStreamWriter creates a new StreamWriter instance

func (*StreamWriter) GetBytes 

func (v *StreamWriter) GetBytes() []byte

GetBytes returns the the byte slice of the underlying data

func (*StreamWriter) PushBit 

func (v *StreamWriter) PushBit(b bool)

PushBit pushes single bit into stream WARNING: if you'll use PushBit, offset'll be less than 8, and if you'll use another Push... method, bits'll not be pushed

func (*StreamWriter) PushBits 

func (v *StreamWriter) PushBits(b byte, bits int)

PushBits pushes bits (with max range 8)

func (*StreamWriter) PushBits16 

func (v *StreamWriter) PushBits16(b uint16, bits int)

PushBits16 pushes bits (with max range 16)

func (*StreamWriter) PushBits32 

func (v *StreamWriter) PushBits32(b uint32, bits int)

PushBits32 pushes bits (with max range 32)

func (*StreamWriter) PushBytes 

func (v *StreamWriter) PushBytes(b ...byte)

PushBytes writes a bytes to the stream

func (*StreamWriter) PushInt16 

func (v *StreamWriter) PushInt16(val int16)

PushInt16 writes a int16 word to the stream

func (*StreamWriter) PushInt32 

func (v *StreamWriter) PushInt32(val int32)

PushInt32 writes a int32 dword to the stream

func (*StreamWriter) PushInt64 

func (v *StreamWriter) PushInt64(val int64)

PushInt64 writes a uint64 qword to the stream

func (*StreamWriter) PushUint16 

func (v *StreamWriter) PushUint16(val uint16)

PushUint16 writes an uint16 word to the stream nolint

func (*StreamWriter) PushUint32 

func (v *StreamWriter) PushUint32(val uint32)

PushUint32 writes a uint32 dword to the stream nolint

func (*StreamWriter) PushUint64 

func (v *StreamWriter) PushUint64(val uint64)

PushUint64 writes a uint64 qword to the stream nolint

Source Files

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