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jaysunxiao 2021-10-15 19:26:10 +08:00
parent 99785f1a49
commit d2ded842df
3 changed files with 327 additions and 0 deletions
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84
gdTest/GdProtocolTest.gd Normal file
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extends Node2D
const ByteBuffer = preload("res://gdTest/gdProtocol/buffer/ByteBuffer.gd")
func _ready():
var buffer = ByteBuffer.new()
buffer.writeBool(true)
buffer.writeBool(false)
assert(true == buffer.readBool())
assert(false == buffer.readBool())
buffer.writeByte(-128)
buffer.writeByte(99)
buffer.writeByte(127)
assert(-128 == buffer.readByte())
assert(99 == buffer.readByte())
assert(127 == buffer.readByte())
buffer.writeShort(-32768)
buffer.writeShort(0)
buffer.writeShort(32767)
assert(-32768 == buffer.readShort())
assert(0 == buffer.readShort())
assert(32767 == buffer.readShort())
buffer.writeInt(-2147483648)
buffer.writeInt(-999999)
buffer.writeInt(0)
buffer.writeInt(999999)
buffer.writeInt(2147483647)
assert(-2147483648 == buffer.readInt())
assert(-999999 == buffer.readInt())
assert(0 == buffer.readInt())
assert(999999 == buffer.readInt())
assert(2147483647 == buffer.readInt())
var maxLong = int("9223372036854775807")
var minLong = int("-9223372036854775808")
buffer.writeLong(maxLong)
buffer.writeLong(9999999999999999)
buffer.writeLong(99999999)
buffer.writeLong(0)
buffer.writeLong(-99999999)
buffer.writeLong(-9999999999999999)
buffer.writeLong(minLong)
assert(maxLong == buffer.readLong())
assert(9999999999999999 == buffer.readLong())
assert(99999999 == buffer.readLong())
assert(0 == buffer.readLong())
assert(-99999999 == buffer.readLong())
assert(-9999999999999999 == buffer.readLong())
assert(minLong == buffer.readLong())
buffer.writeFloat(-1234.5678)
buffer.writeFloat(0)
buffer.writeFloat(1234.5678)
assert(abs(-1234.5678 - buffer.readFloat()) < 0.001)
assert(0 == buffer.readFloat())
assert(abs(1234.5678 - buffer.readFloat()) < 0.001)
buffer.writeDouble(-1234.5678)
buffer.writeDouble(0)
buffer.writeDouble(1234.5678)
assert(abs(-1234.5678 - buffer.readDouble()) < 0.001)
assert(0 == buffer.readDouble())
assert(abs(1234.5678 - buffer.readDouble()) < 0.001)
var strValue = "你好 hello world"
buffer.writeString(strValue)
assert(strValue == buffer.readString())
buffer.writeChar(strValue)
assert(strValue[0] == buffer.readChar())
buffer.writeChar("")
assert(ByteBuffer.EMPTY == buffer.readChar())

237
gdTest/gdProtocol/buffer/ByteBuffer.gd Normal file
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const EMPTY: String = ""
var buffer = StreamPeerBuffer.new()
var writeOffset: int = 0 setget setWriteOffset, getWriteOffset
var readOffset: int = 0 setget setReadOffset, getReadOffset
func _init():
buffer.big_endian = true
# -------------------------------------------------get/set-------------------------------------------------
func setWriteOffset(writeIndex: int) -> void:
if (writeIndex > buffer.get_size()):
var template = "writeIndex[{}] out of bounds exception: readerIndex: {}, writerIndex: {} (expected: 0 <= readerIndex <= writerIndex <= capacity: {})"
printerr(template.format([writeIndex, readOffset, writeOffset, buffer.size()], "{}"))
return
writeOffset = writeIndex
func getWriteOffset() -> int:
return writeOffset
func setReadOffset(readIndex: int) -> void:
if (readIndex > writeOffset):
var template = "readIndex[{}] out of bounds exception: readerIndex: {}, writerIndex: {} (expected: 0 <= readerIndex <= writerIndex <= capacity: {})"
printerr(template.format([readIndex, readOffset, writeOffset, buffer.size()], "{}"))
return
readOffset = readIndex
func getReadOffset() -> int:
return readOffset
# -------------------------------------------------write/read-------------------------------------------------
func writeBool(value: bool) -> void:
var byte = 0
if (value):
byte = 1
buffer.seek(writeOffset)
buffer.put_8(byte)
writeOffset += 1
func readBool() -> bool:
buffer.seek(readOffset)
var byte = buffer.get_8()
readOffset += 1
return byte == 1
func writeByte(value: int) -> void:
buffer.seek(writeOffset)
buffer.put_8(value)
writeOffset += 1
func readByte() -> int:
buffer.seek(readOffset)
var value = buffer.get_8()
readOffset += 1
return value
func writeShort(value: int) -> void:
buffer.seek(writeOffset)
buffer.put_16(value)
writeOffset += 2
func readShort() -> int:
buffer.seek(readOffset)
var value = buffer.get_16()
readOffset += 2
return value
func writeInt(value) -> void:
writeLong(value)
func readInt() -> int:
return readLong()
func writeLong(longValue: int) -> void:
var value = (longValue << 1) ^ (longValue >> 63)
if (value >> 7 == 0):
writeByte(value)
return
if (value >> 14 == 0):
writeByte(value | 0x80)
writeByte(value >> 7)
return
if (value >> 21 == 0):
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte(value >> 14)
return
if (value >> 28 == 0):
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte((value >> 14) | 0x80)
writeByte(value >> 21)
return
if (value >> 35 == 0):
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte((value >> 14) | 0x80)
writeByte((value >> 21) | 0x80)
writeByte(value >> 28)
return
if (value >> 42 == 0):
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte((value >> 14) | 0x80)
writeByte((value >> 21) | 0x80)
writeByte((value >> 28) | 0x80)
writeByte(value >> 35)
return
if (value >> 49 == 0):
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte((value >> 14) | 0x80)
writeByte((value >> 21) | 0x80)
writeByte((value >> 28) | 0x80)
writeByte((value >> 35) | 0x80)
writeByte(value >> 42)
return
if (value >> 56 == 0):
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte((value >> 14) | 0x80)
writeByte((value >> 21) | 0x80)
writeByte((value >> 28) | 0x80)
writeByte((value >> 35) | 0x80)
writeByte((value >> 42) | 0x80)
writeByte(value >> 49)
return
writeByte(value | 0x80)
writeByte((value >> 7) | 0x80)
writeByte((value >> 14) | 0x80)
writeByte((value >> 21) | 0x80)
writeByte((value >> 28) | 0x80)
writeByte((value >> 35) | 0x80)
writeByte((value >> 42) | 0x80)
writeByte((value >> 49) | 0x80)
writeByte(value >> 56)
func readLong() -> int:
var byte: int = readByte()
var value: int = byte
if (byte < 0):
byte = readByte()
value = value & 0x00000000_0000007F | byte << 7
if (byte < 0):
byte = readByte()
value = value & 0x00000000_00003FFF | byte << 14
if (byte < 0):
byte = readByte()
value = value & 0x00000000_001FFFFF | byte << 21
if (byte < 0):
byte = readByte()
value = value & 0x00000000_0FFFFFFF | byte << 28
if (byte < 0):
byte = readByte()
value = value & 0x00000007_FFFFFFFF | byte << 35
if (byte < 0):
byte = readByte()
value = value & 0x000003FF_FFFFFFFF | byte << 42
if (byte < 0):
byte = readByte()
value = value & 0x0001FFFF_FFFFFFFF | byte << 49
if (byte < 0):
byte = readByte()
value = value & 0x00FFFFFF_FFFFFFFF | byte << 56
var mask = value >> 1
if (mask < 0):
mask = mask & 0x7FFFFFFF_FFFFFFFF
return mask ^ -(value & 1)
func writeFloat(value: float) -> void:
buffer.seek(writeOffset)
buffer.put_float(value)
writeOffset += 4
func readFloat() -> float:
buffer.seek(readOffset)
var value = buffer.get_float()
readOffset += 4
return value
func writeDouble(value: float) -> void:
buffer.seek(writeOffset)
buffer.put_double(value)
writeOffset += 8
func readDouble() -> float:
buffer.seek(readOffset)
var value = buffer.get_double()
readOffset += 8
return value
func writeString(value: String) -> void:
if (value == null || value.length() ==0):
writeInt(0)
return
buffer.seek(writeOffset)
var strBytes = value.to_utf8()
var length = strBytes.size()
writeInt(length)
buffer.put_partial_data(strBytes)
writeOffset += length
func readString() -> String:
var length = readInt()
if (length <= 0):
return EMPTY
buffer.seek(readOffset)
var value = buffer.get_utf8_string(length)
var strBytes = value.to_utf8()
readOffset += length
return value
func writeChar(value) -> void:
if (value == null || value.length() == 0):
writeString(EMPTY)
return
writeString(value[0])
func readChar() -> String:
return readString()

6
gdTest/protocolTest.tscn Normal file
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[gd_scene load_steps=2 format=2]
[ext_resource path="res://gdTest/GdProtocolTest.gd" type="Script" id=1]
[node name="Node2D" type="Node2D"]
script = ExtResource( 1 )