colyseus.js
Version:
Colyseus Multiplayer SDK for JavaScript/TypeScript
290 lines • 37.2 kB
JavaScript
"use strict";
/**
* Copyright (c) 2014 Ion Drive Software Ltd.
* https://github.com/darrachequesne/notepack/
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
Object.defineProperty(exports, "__esModule", { value: true });
/**
* Patch for Colyseus:
* -------------------
*
* added `offset` on Decoder constructor, for messages arriving with a code
* before actual msgpack data
*/
function Decoder(buffer, offset) {
this._offset = offset;
if (buffer instanceof ArrayBuffer) {
this._buffer = buffer;
this._view = new DataView(this._buffer);
}
else if (ArrayBuffer.isView(buffer)) {
this._buffer = buffer.buffer;
this._view = new DataView(this._buffer, buffer.byteOffset, buffer.byteLength);
}
else {
throw new Error('Invalid argument');
}
}
function utf8Read(view, offset, length) {
var string = '', chr = 0;
for (var i = offset, end = offset + length; i < end; i++) {
var byte = view.getUint8(i);
if ((byte & 0x80) === 0x00) {
string += String.fromCharCode(byte);
continue;
}
if ((byte & 0xe0) === 0xc0) {
string += String.fromCharCode(((byte & 0x1f) << 6) |
(view.getUint8(++i) & 0x3f));
continue;
}
if ((byte & 0xf0) === 0xe0) {
string += String.fromCharCode(((byte & 0x0f) << 12) |
((view.getUint8(++i) & 0x3f) << 6) |
((view.getUint8(++i) & 0x3f) << 0));
continue;
}
if ((byte & 0xf8) === 0xf0) {
chr = ((byte & 0x07) << 18) |
((view.getUint8(++i) & 0x3f) << 12) |
((view.getUint8(++i) & 0x3f) << 6) |
((view.getUint8(++i) & 0x3f) << 0);
if (chr >= 0x010000) { // surrogate pair
chr -= 0x010000;
string += String.fromCharCode((chr >>> 10) + 0xD800, (chr & 0x3FF) + 0xDC00);
}
else {
string += String.fromCharCode(chr);
}
continue;
}
throw new Error('Invalid byte ' + byte.toString(16));
}
return string;
}
Decoder.prototype._array = function (length) {
var value = new Array(length);
for (var i = 0; i < length; i++) {
value[i] = this._parse();
}
return value;
};
Decoder.prototype._map = function (length) {
var key = '', value = {};
for (var i = 0; i < length; i++) {
key = this._parse();
value[key] = this._parse();
}
return value;
};
Decoder.prototype._str = function (length) {
var value = utf8Read(this._view, this._offset, length);
this._offset += length;
return value;
};
Decoder.prototype._bin = function (length) {
var value = this._buffer.slice(this._offset, this._offset + length);
this._offset += length;
return value;
};
Decoder.prototype._parse = function () {
var prefix = this._view.getUint8(this._offset++);
var value, length = 0, type = 0, hi = 0, lo = 0;
if (prefix < 0xc0) {
// positive fixint
if (prefix < 0x80) {
return prefix;
}
// fixmap
if (prefix < 0x90) {
return this._map(prefix & 0x0f);
}
// fixarray
if (prefix < 0xa0) {
return this._array(prefix & 0x0f);
}
// fixstr
return this._str(prefix & 0x1f);
}
// negative fixint
if (prefix > 0xdf) {
return (0xff - prefix + 1) * -1;
}
switch (prefix) {
// nil
case 0xc0:
return null;
// false
case 0xc2:
return false;
// true
case 0xc3:
return true;
// bin
case 0xc4:
length = this._view.getUint8(this._offset);
this._offset += 1;
return this._bin(length);
case 0xc5:
length = this._view.getUint16(this._offset);
this._offset += 2;
return this._bin(length);
case 0xc6:
length = this._view.getUint32(this._offset);
this._offset += 4;
return this._bin(length);
// ext
case 0xc7:
length = this._view.getUint8(this._offset);
type = this._view.getInt8(this._offset + 1);
this._offset += 2;
return [type, this._bin(length)];
case 0xc8:
length = this._view.getUint16(this._offset);
type = this._view.getInt8(this._offset + 2);
this._offset += 3;
return [type, this._bin(length)];
case 0xc9:
length = this._view.getUint32(this._offset);
type = this._view.getInt8(this._offset + 4);
this._offset += 5;
return [type, this._bin(length)];
// float
case 0xca:
value = this._view.getFloat32(this._offset);
this._offset += 4;
return value;
case 0xcb:
value = this._view.getFloat64(this._offset);
this._offset += 8;
return value;
// uint
case 0xcc:
value = this._view.getUint8(this._offset);
this._offset += 1;
return value;
case 0xcd:
value = this._view.getUint16(this._offset);
this._offset += 2;
return value;
case 0xce:
value = this._view.getUint32(this._offset);
this._offset += 4;
return value;
case 0xcf:
hi = this._view.getUint32(this._offset) * Math.pow(2, 32);
lo = this._view.getUint32(this._offset + 4);
this._offset += 8;
return hi + lo;
// int
case 0xd0:
value = this._view.getInt8(this._offset);
this._offset += 1;
return value;
case 0xd1:
value = this._view.getInt16(this._offset);
this._offset += 2;
return value;
case 0xd2:
value = this._view.getInt32(this._offset);
this._offset += 4;
return value;
case 0xd3:
hi = this._view.getInt32(this._offset) * Math.pow(2, 32);
lo = this._view.getUint32(this._offset + 4);
this._offset += 8;
return hi + lo;
// fixext
case 0xd4:
type = this._view.getInt8(this._offset);
this._offset += 1;
if (type === 0x00) {
this._offset += 1;
return void 0;
}
return [type, this._bin(1)];
case 0xd5:
type = this._view.getInt8(this._offset);
this._offset += 1;
return [type, this._bin(2)];
case 0xd6:
type = this._view.getInt8(this._offset);
this._offset += 1;
return [type, this._bin(4)];
case 0xd7:
type = this._view.getInt8(this._offset);
this._offset += 1;
if (type === 0x00) {
hi = this._view.getInt32(this._offset) * Math.pow(2, 32);
lo = this._view.getUint32(this._offset + 4);
this._offset += 8;
return new Date(hi + lo);
}
return [type, this._bin(8)];
case 0xd8:
type = this._view.getInt8(this._offset);
this._offset += 1;
return [type, this._bin(16)];
// str
case 0xd9:
length = this._view.getUint8(this._offset);
this._offset += 1;
return this._str(length);
case 0xda:
length = this._view.getUint16(this._offset);
this._offset += 2;
return this._str(length);
case 0xdb:
length = this._view.getUint32(this._offset);
this._offset += 4;
return this._str(length);
// array
case 0xdc:
length = this._view.getUint16(this._offset);
this._offset += 2;
return this._array(length);
case 0xdd:
length = this._view.getUint32(this._offset);
this._offset += 4;
return this._array(length);
// map
case 0xde:
length = this._view.getUint16(this._offset);
this._offset += 2;
return this._map(length);
case 0xdf:
length = this._view.getUint32(this._offset);
this._offset += 4;
return this._map(length);
}
throw new Error('Could not parse');
};
function decode(buffer, offset) {
if (offset === void 0) { offset = 0; }
var decoder = new Decoder(buffer, offset);
var value = decoder._parse();
if (decoder._offset !== buffer.byteLength) {
throw new Error((buffer.byteLength - decoder._offset) + ' trailing bytes');
}
return value;
}
exports.default = decode;
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* Copyright (c) 2014 Ion Drive Software Ltd.\n * https://github.com/darrachequesne/notepack/\n *\n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n *\n * The above copyright notice and this permission notice shall be included in all\n * copies or substantial portions of the Software.\n *\n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n * SOFTWARE.\n */\n\n/**\n * Patch for Colyseus:\n * -------------------\n *\n * added `offset` on Decoder constructor, for messages arriving with a code\n * before actual msgpack data\n */\n\nfunction Decoder(buffer, offset) {\n    this._offset = offset;\n    if (buffer instanceof ArrayBuffer) {\n        this._buffer = buffer;\n        this._view = new DataView(this._buffer);\n    } else if (ArrayBuffer.isView(buffer)) {\n        this._buffer = buffer.buffer;\n        this._view = new DataView(this._buffer, buffer.byteOffset, buffer.byteLength);\n    } else {\n        throw new Error('Invalid argument');\n    }\n}\n\nfunction utf8Read(view, offset, length) {\n    var string = '', chr = 0;\n    for (var i = offset, end = offset + length; i < end; i++) {\n        var byte = view.getUint8(i);\n        if ((byte & 0x80) === 0x00) {\n            string += String.fromCharCode(byte);\n            continue;\n        }\n        if ((byte & 0xe0) === 0xc0) {\n            string += String.fromCharCode(\n                ((byte & 0x1f) << 6) |\n                (view.getUint8(++i) & 0x3f)\n            );\n            continue;\n        }\n        if ((byte & 0xf0) === 0xe0) {\n            string += String.fromCharCode(\n                ((byte & 0x0f) << 12) |\n                ((view.getUint8(++i) & 0x3f) << 6) |\n                ((view.getUint8(++i) & 0x3f) << 0)\n            );\n            continue;\n        }\n        if ((byte & 0xf8) === 0xf0) {\n            chr = ((byte & 0x07) << 18) |\n                ((view.getUint8(++i) & 0x3f) << 12) |\n                ((view.getUint8(++i) & 0x3f) << 6) |\n                ((view.getUint8(++i) & 0x3f) << 0);\n            if (chr >= 0x010000) { // surrogate pair\n                chr -= 0x010000;\n                string += String.fromCharCode((chr >>> 10) + 0xD800, (chr & 0x3FF) + 0xDC00);\n            } else {\n                string += String.fromCharCode(chr);\n            }\n            continue;\n        }\n        throw new Error('Invalid byte ' + byte.toString(16));\n    }\n    return string;\n}\n\nDecoder.prototype._array = function (length) {\n    var value = new Array(length);\n    for (var i = 0; i < length; i++) {\n        value[i] = this._parse();\n    }\n    return value;\n};\n\nDecoder.prototype._map = function (length) {\n    var key = '', value = {};\n    for (var i = 0; i < length; i++) {\n        key = this._parse();\n        value[key] = this._parse();\n    }\n    return value;\n};\n\nDecoder.prototype._str = function (length) {\n    var value = utf8Read(this._view, this._offset, length);\n    this._offset += length;\n    return value;\n};\n\nDecoder.prototype._bin = function (length) {\n    var value = this._buffer.slice(this._offset, this._offset + length);\n    this._offset += length;\n    return value;\n};\n\nDecoder.prototype._parse = function () {\n    var prefix = this._view.getUint8(this._offset++);\n    var value, length = 0, type = 0, hi = 0, lo = 0;\n\n    if (prefix < 0xc0) {\n        // positive fixint\n        if (prefix < 0x80) {\n            return prefix;\n        }\n        // fixmap\n        if (prefix < 0x90) {\n            return this._map(prefix & 0x0f);\n        }\n        // fixarray\n        if (prefix < 0xa0) {\n            return this._array(prefix & 0x0f);\n        }\n        // fixstr\n        return this._str(prefix & 0x1f);\n    }\n\n    // negative fixint\n    if (prefix > 0xdf) {\n        return (0xff - prefix + 1) * -1;\n    }\n\n    switch (prefix) {\n        // nil\n        case 0xc0:\n            return null;\n        // false\n        case 0xc2:\n            return false;\n        // true\n        case 0xc3:\n            return true;\n\n        // bin\n        case 0xc4:\n            length = this._view.getUint8(this._offset);\n            this._offset += 1;\n            return this._bin(length);\n        case 0xc5:\n            length = this._view.getUint16(this._offset);\n            this._offset += 2;\n            return this._bin(length);\n        case 0xc6:\n            length = this._view.getUint32(this._offset);\n            this._offset += 4;\n            return this._bin(length);\n\n        // ext\n        case 0xc7:\n            length = this._view.getUint8(this._offset);\n            type = this._view.getInt8(this._offset + 1);\n            this._offset += 2;\n            return [type, this._bin(length)];\n        case 0xc8:\n            length = this._view.getUint16(this._offset);\n            type = this._view.getInt8(this._offset + 2);\n            this._offset += 3;\n            return [type, this._bin(length)];\n        case 0xc9:\n            length = this._view.getUint32(this._offset);\n            type = this._view.getInt8(this._offset + 4);\n            this._offset += 5;\n            return [type, this._bin(length)];\n\n        // float\n        case 0xca:\n            value = this._view.getFloat32(this._offset);\n            this._offset += 4;\n            return value;\n        case 0xcb:\n            value = this._view.getFloat64(this._offset);\n            this._offset += 8;\n            return value;\n\n        // uint\n        case 0xcc:\n            value = this._view.getUint8(this._offset);\n            this._offset += 1;\n            return value;\n        case 0xcd:\n            value = this._view.getUint16(this._offset);\n            this._offset += 2;\n            return value;\n        case 0xce:\n            value = this._view.getUint32(this._offset);\n            this._offset += 4;\n            return value;\n        case 0xcf:\n            hi = this._view.getUint32(this._offset) * Math.pow(2, 32);\n            lo = this._view.getUint32(this._offset + 4);\n            this._offset += 8;\n            return hi + lo;\n\n        // int\n        case 0xd0:\n            value = this._view.getInt8(this._offset);\n            this._offset += 1;\n            return value;\n        case 0xd1:\n            value = this._view.getInt16(this._offset);\n            this._offset += 2;\n            return value;\n        case 0xd2:\n            value = this._view.getInt32(this._offset);\n            this._offset += 4;\n            return value;\n        case 0xd3:\n            hi = this._view.getInt32(this._offset) * Math.pow(2, 32);\n            lo = this._view.getUint32(this._offset + 4);\n            this._offset += 8;\n            return hi + lo;\n\n        // fixext\n        case 0xd4:\n            type = this._view.getInt8(this._offset);\n            this._offset += 1;\n            if (type === 0x00) {\n                this._offset += 1;\n                return void 0;\n            }\n            return [type, this._bin(1)];\n        case 0xd5:\n            type = this._view.getInt8(this._offset);\n            this._offset += 1;\n            return [type, this._bin(2)];\n        case 0xd6:\n            type = this._view.getInt8(this._offset);\n            this._offset += 1;\n            return [type, this._bin(4)];\n        case 0xd7:\n            type = this._view.getInt8(this._offset);\n            this._offset += 1;\n            if (type === 0x00) {\n                hi = this._view.getInt32(this._offset) * Math.pow(2, 32);\n                lo = this._view.getUint32(this._offset + 4);\n                this._offset += 8;\n                return new Date(hi + lo);\n            }\n            return [type, this._bin(8)];\n        case 0xd8:\n            type = this._view.getInt8(this._offset);\n            this._offset += 1;\n            return [type, this._bin(16)];\n\n        // str\n        case 0xd9:\n            length = this._view.getUint8(this._offset);\n            this._offset += 1;\n            return this._str(length);\n        case 0xda:\n            length = this._view.getUint16(this._offset);\n            this._offset += 2;\n            return this._str(length);\n        case 0xdb:\n            length = this._view.getUint32(this._offset);\n            this._offset += 4;\n            return this._str(length);\n\n        // array\n        case 0xdc:\n            length = this._view.getUint16(this._offset);\n            this._offset += 2;\n            return this._array(length);\n        case 0xdd:\n            length = this._view.getUint32(this._offset);\n            this._offset += 4;\n            return this._array(length);\n\n        // map\n        case 0xde:\n            length = this._view.getUint16(this._offset);\n            this._offset += 2;\n            return this._map(length);\n        case 0xdf:\n            length = this._view.getUint32(this._offset);\n            this._offset += 4;\n            return this._map(length);\n    }\n\n    throw new Error('Could not parse');\n};\n\nfunction decode(buffer, offset = 0) {\n    var decoder = new Decoder(buffer, offset);\n    var value = decoder._parse();\n    if (decoder._offset !== buffer.byteLength) {\n        throw new Error((buffer.byteLength - decoder._offset) + ' trailing bytes');\n    }\n    return value;\n}\n\nexport default decode;"]}