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class_name ByteStream
var bytes: PackedByteArray
var position: int = 0
@warning_ignore("shadowed_variable")
static func from_bytes(bytes: PackedByteArray) -> ByteStream:
var byte_stream = ByteStream.new()
byte_stream.bytes = bytes
return byte_stream
@warning_ignore("shadowed_variable")
func seek(position: int) -> void:
if position > 0:
assert(position <= bytes.size())
self.position = position
func advance(jumps: int) -> void:
position += jumps
func available() -> bool:
return position < bytes.size() - 1
func get_buffer(length: int) -> ByteStream:
var byte_stream = ByteStream.from_bytes(
bytes.slice(position, position + length)
)
seek(position + length)
return byte_stream
func decode_u8() -> int:
var result = bytes.decode_u8(position)
seek(position + 1)
return result
func decode_u16() -> int:
var result = bytes.decode_u16(position)
seek(position + 2)
return result
func decode_u32() -> int:
var result = bytes.decode_u32(position)
seek(position + 4)
return result
func decode_u64() -> int:
var result = bytes.decode_u64(position)
seek(position + 8)
return result
func decode_s8() -> int:
var result = bytes.decode_s8(position)
seek(position + 1)
return result
func decode_s16() -> int:
var result = bytes.decode_s16(position)
seek(position + 2)
return result
func decode_s32() -> int:
var result = bytes.decode_s32(position)
seek(position + 4)
return result
func decode_s64() -> int:
var result = bytes.decode_s64(position)
seek(position + 8)
return result
func decode_float() -> float:
var result = bytes.decode_float(position)
seek(position + 4)
return result
func get_string_from_utf8(length: int) -> String:
return get_buffer(length).bytes.get_string_from_utf8()
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