diff --git a/packages/qrcode/.npmignore b/packages/qrcode/.npmignore
new file mode 120000
index 00000000..b4359f69
--- /dev/null
+++ b/packages/qrcode/.npmignore
@@ -0,0 +1 @@
+../../.npmignore
\ No newline at end of file
diff --git a/packages/qrcode/package.json b/packages/qrcode/package.json
new file mode 100644
index 00000000..7a98fad2
--- /dev/null
+++ b/packages/qrcode/package.json
@@ -0,0 +1,26 @@
+{
+    "name": "@ccms/qrcode",
+    "version": "0.26.0",
+    "description": "MiaoScript qrcode package",
+    "keywords": [
+        "miaoscript",
+        "minecraft",
+        "bukkit",
+        "sponge"
+    ],
+    "author": "MiaoWoo <admin@yumc.pw>",
+    "homepage": "https://github.com/circlecloud/ms.git",
+    "license": "ISC",
+    "main": "dist/index.js",
+    "scripts": {
+        "clean": "rimraf dist",
+        "watch": "tsc --watch",
+        "build": "yarn clean && tsc",
+        "test": "echo \"Error: run tests from root\" && exit 1"
+    },
+    "devDependencies": {
+        "reflect-metadata": "^0.1.13",
+        "rimraf": "^4.1.2",
+        "typescript": "^4.9.5"
+    }
+}
diff --git a/packages/qrcode/src/index.ts b/packages/qrcode/src/index.ts
new file mode 100644
index 00000000..d8d669cf
--- /dev/null
+++ b/packages/qrcode/src/index.ts
@@ -0,0 +1,1243 @@
+//---------------------------------------------------------------------
+// QRCode for JavaScript
+//
+// Copyright (c) 2009 Kazuhiko Arase
+//
+// URL: http://www.d-project.com/
+//
+// Licensed under the MIT license:
+//   http://www.opensource.org/licenses/mit-license.php
+//
+// The word "QR Code" is registered trademark of
+// DENSO WAVE INCORPORATED
+//   http://www.denso-wave.com/qrcode/faqpatent-e.html
+//
+//---------------------------------------------------------------------
+
+//---------------------------------------------------------------------
+// QR8bitByte
+//---------------------------------------------------------------------
+
+class QR8bitByte {
+    mode: number
+    data: any
+    constructor(data) {
+        this.mode = QRMode.MODE_8BIT_BYTE
+        this.data = data
+    }
+    getLength(buffer) {
+        return this.data.length
+    }
+    write(buffer) {
+        for (var i = 0; i < this.data.length; i++) {
+            // not JIS ...
+            buffer.put(this.data.charCodeAt(i), 8)
+        }
+    }
+}
+
+//---------------------------------------------------------------------
+// QRCode
+//---------------------------------------------------------------------
+
+export class QRCode {
+    static PAD0 = 0xEC
+    static PAD1 = 0x11
+    typeNumber: any
+    errorCorrectLevel: any
+    modules: any
+    moduleCount: number
+    dataCache: any
+    dataList: any[]
+    constructor(typeNumber, errorCorrectLevel: QRErrorCorrectLevel) {
+        this.typeNumber = typeNumber
+        this.errorCorrectLevel = errorCorrectLevel
+        this.modules = null
+        this.moduleCount = 0
+        this.dataCache = null
+        this.dataList = new Array()
+    }
+    static createData(typeNumber, errorCorrectLevel, dataList) {
+
+        var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, errorCorrectLevel)
+
+        var buffer = new QRBitBuffer()
+
+        for (var i = 0; i < dataList.length; i++) {
+            var data = dataList[i]
+            buffer.put(data.mode, 4)
+            buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber))
+            data.write(buffer)
+        }
+
+        // calc num max data.
+        var totalDataCount = 0
+        for (var i = 0; i < rsBlocks.length; i++) {
+            totalDataCount += rsBlocks[i].dataCount
+        }
+
+        if (buffer.getLengthInBits() > totalDataCount * 8) {
+            throw new Error("code length overflow. ("
+                + buffer.getLengthInBits()
+                + ">"
+                + totalDataCount * 8
+                + ")")
+        }
+
+        // end code
+        if (buffer.getLengthInBits() + 4 <= totalDataCount * 8) {
+            buffer.put(0, 4)
+        }
+
+        // padding
+        while (buffer.getLengthInBits() % 8 != 0) {
+            buffer.putBit(false)
+        }
+
+        // padding
+        while (true) {
+
+            if (buffer.getLengthInBits() >= totalDataCount * 8) {
+                break
+            }
+            buffer.put(QRCode.PAD0, 8)
+
+            if (buffer.getLengthInBits() >= totalDataCount * 8) {
+                break
+            }
+            buffer.put(QRCode.PAD1, 8)
+        }
+
+        return QRCode.createBytes(buffer, rsBlocks)
+    }
+    static createBytes(buffer, rsBlocks) {
+
+        var offset = 0
+
+        var maxDcCount = 0
+        var maxEcCount = 0
+
+        var dcdata = new Array(rsBlocks.length)
+        var ecdata = new Array(rsBlocks.length)
+
+        for (var r = 0; r < rsBlocks.length; r++) {
+
+            var dcCount = rsBlocks[r].dataCount
+            var ecCount = rsBlocks[r].totalCount - dcCount
+
+            maxDcCount = Math.max(maxDcCount, dcCount)
+            maxEcCount = Math.max(maxEcCount, ecCount)
+
+            dcdata[r] = new Array(dcCount)
+
+            for (var i = 0; i < dcdata[r].length; i++) {
+                dcdata[r][i] = 0xff & buffer.buffer[i + offset]
+            }
+            offset += dcCount
+
+            var rsPoly = QRUtil.getErrorCorrectPolynomial(ecCount)
+            var rawPoly = new QRPolynomial(dcdata[r], rsPoly.getLength() - 1)
+
+            var modPoly = rawPoly.mod(rsPoly)
+            ecdata[r] = new Array(rsPoly.getLength() - 1)
+            for (var i = 0; i < ecdata[r].length; i++) {
+                var modIndex = i + modPoly.getLength() - ecdata[r].length
+                ecdata[r][i] = (modIndex >= 0) ? modPoly.get(modIndex) : 0
+            }
+
+        }
+
+        var totalCodeCount = 0
+        for (var i = 0; i < rsBlocks.length; i++) {
+            totalCodeCount += rsBlocks[i].totalCount
+        }
+
+        var data = new Array(totalCodeCount)
+        var index = 0
+
+        for (var i = 0; i < maxDcCount; i++) {
+            for (var r = 0; r < rsBlocks.length; r++) {
+                if (i < dcdata[r].length) {
+                    data[index++] = dcdata[r][i]
+                }
+            }
+        }
+
+        for (var i = 0; i < maxEcCount; i++) {
+            for (var r = 0; r < rsBlocks.length; r++) {
+                if (i < ecdata[r].length) {
+                    data[index++] = ecdata[r][i]
+                }
+            }
+        }
+
+        return data
+
+    }
+    addData(data) {
+        var newData = new QR8bitByte(data)
+        this.dataList.push(newData)
+        this.dataCache = null
+    }
+
+    isDark(row, col) {
+        if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
+            throw new Error(row + "," + col)
+        }
+        return this.modules[row][col]
+    }
+
+    getModuleCount() {
+        return this.moduleCount
+    }
+
+    make() {
+        // Calculate automatically typeNumber if provided is < 1
+        if (this.typeNumber < 1) {
+            var typeNumber = 1
+            for (typeNumber = 1; typeNumber < 40; typeNumber++) {
+                var rsBlocks = QRRSBlock.getRSBlocks(typeNumber, this.errorCorrectLevel)
+
+                var buffer = new QRBitBuffer()
+                var totalDataCount = 0
+                for (var i = 0; i < rsBlocks.length; i++) {
+                    totalDataCount += rsBlocks[i].dataCount
+                }
+
+                for (var i = 0; i < this.dataList.length; i++) {
+                    var data = this.dataList[i]
+                    buffer.put(data.mode, 4)
+                    buffer.put(data.getLength(), QRUtil.getLengthInBits(data.mode, typeNumber))
+                    data.write(buffer)
+                }
+                if (buffer.getLengthInBits() <= totalDataCount * 8)
+                    break
+            }
+            this.typeNumber = typeNumber
+        }
+        this.makeImpl(false, this.getBestMaskPattern())
+    }
+
+    makeImpl(test, maskPattern) {
+
+        this.moduleCount = this.typeNumber * 4 + 17
+        this.modules = new Array(this.moduleCount)
+
+        for (var row = 0; row < this.moduleCount; row++) {
+
+            this.modules[row] = new Array(this.moduleCount)
+
+            for (var col = 0; col < this.moduleCount; col++) {
+                this.modules[row][col] = null//(col + row) % 3;
+            }
+        }
+
+        this.setupPositionProbePattern(0, 0)
+        this.setupPositionProbePattern(this.moduleCount - 7, 0)
+        this.setupPositionProbePattern(0, this.moduleCount - 7)
+        this.setupPositionAdjustPattern()
+        this.setupTimingPattern()
+        this.setupTypeInfo(test, maskPattern)
+
+        if (this.typeNumber >= 7) {
+            this.setupTypeNumber(test)
+        }
+
+        if (this.dataCache == null) {
+            this.dataCache = QRCode.createData(this.typeNumber, this.errorCorrectLevel, this.dataList)
+        }
+
+        this.mapData(this.dataCache, maskPattern)
+    }
+
+    setupPositionProbePattern(row, col) {
+
+        for (var r = -1; r <= 7; r++) {
+
+            if (row + r <= -1 || this.moduleCount <= row + r) continue
+
+            for (var c = -1; c <= 7; c++) {
+
+                if (col + c <= -1 || this.moduleCount <= col + c) continue
+
+                if ((0 <= r && r <= 6 && (c == 0 || c == 6))
+                    || (0 <= c && c <= 6 && (r == 0 || r == 6))
+                    || (2 <= r && r <= 4 && 2 <= c && c <= 4)) {
+                    this.modules[row + r][col + c] = true
+                } else {
+                    this.modules[row + r][col + c] = false
+                }
+            }
+        }
+    }
+
+    getBestMaskPattern() {
+
+        var minLostPoint = 0
+        var pattern = 0
+
+        for (var i = 0; i < 8; i++) {
+
+            this.makeImpl(true, i)
+
+            var lostPoint = QRUtil.getLostPoint(this)
+
+            if (i == 0 || minLostPoint > lostPoint) {
+                minLostPoint = lostPoint
+                pattern = i
+            }
+        }
+
+        return pattern
+    }
+
+    createMovieClip(target_mc, instance_name, depth) {
+
+        var qr_mc = target_mc.createEmptyMovieClip(instance_name, depth)
+        var cs = 1
+
+        this.make()
+
+        for (var row = 0; row < this.modules.length; row++) {
+
+            var y = row * cs
+
+            for (var col = 0; col < this.modules[row].length; col++) {
+
+                var x = col * cs
+                var dark = this.modules[row][col]
+
+                if (dark) {
+                    qr_mc.beginFill(0, 100)
+                    qr_mc.moveTo(x, y)
+                    qr_mc.lineTo(x + cs, y)
+                    qr_mc.lineTo(x + cs, y + cs)
+                    qr_mc.lineTo(x, y + cs)
+                    qr_mc.endFill()
+                }
+            }
+        }
+
+        return qr_mc
+    }
+
+    setupTimingPattern() {
+
+        for (var r = 8; r < this.moduleCount - 8; r++) {
+            if (this.modules[r][6] != null) {
+                continue
+            }
+            this.modules[r][6] = (r % 2 == 0)
+        }
+
+        for (var c = 8; c < this.moduleCount - 8; c++) {
+            if (this.modules[6][c] != null) {
+                continue
+            }
+            this.modules[6][c] = (c % 2 == 0)
+        }
+    }
+
+    setupPositionAdjustPattern() {
+
+        var pos = QRUtil.getPatternPosition(this.typeNumber)
+
+        for (var i = 0; i < pos.length; i++) {
+
+            for (var j = 0; j < pos.length; j++) {
+
+                var row = pos[i]
+                var col = pos[j]
+
+                if (this.modules[row][col] != null) {
+                    continue
+                }
+
+                for (var r = -2; r <= 2; r++) {
+
+                    for (var c = -2; c <= 2; c++) {
+
+                        if (r == -2 || r == 2 || c == -2 || c == 2
+                            || (r == 0 && c == 0)) {
+                            this.modules[row + r][col + c] = true
+                        } else {
+                            this.modules[row + r][col + c] = false
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    setupTypeNumber(test) {
+
+        var bits = QRUtil.getBCHTypeNumber(this.typeNumber)
+
+        for (var i = 0; i < 18; i++) {
+            var mod = (!test && ((bits >> i) & 1) == 1)
+            this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod
+        }
+
+        for (var i = 0; i < 18; i++) {
+            var mod = (!test && ((bits >> i) & 1) == 1)
+            this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod
+        }
+    }
+
+    setupTypeInfo(test, maskPattern) {
+
+        var data = (this.errorCorrectLevel << 3) | maskPattern
+        var bits = QRUtil.getBCHTypeInfo(data)
+
+        // vertical
+        for (var i = 0; i < 15; i++) {
+
+            var mod = (!test && ((bits >> i) & 1) == 1)
+
+            if (i < 6) {
+                this.modules[i][8] = mod
+            } else if (i < 8) {
+                this.modules[i + 1][8] = mod
+            } else {
+                this.modules[this.moduleCount - 15 + i][8] = mod
+            }
+        }
+
+        // horizontal
+        for (var i = 0; i < 15; i++) {
+
+            var mod = (!test && ((bits >> i) & 1) == 1)
+
+            if (i < 8) {
+                this.modules[8][this.moduleCount - i - 1] = mod
+            } else if (i < 9) {
+                this.modules[8][15 - i - 1 + 1] = mod
+            } else {
+                this.modules[8][15 - i - 1] = mod
+            }
+        }
+
+        // fixed module
+        this.modules[this.moduleCount - 8][8] = (!test)
+
+    }
+
+    mapData(data, maskPattern) {
+
+        var inc = -1
+        var row = this.moduleCount - 1
+        var bitIndex = 7
+        var byteIndex = 0
+
+        for (var col = this.moduleCount - 1; col > 0; col -= 2) {
+
+            if (col == 6) col--
+
+            while (true) {
+
+                for (var c = 0; c < 2; c++) {
+
+                    if (this.modules[row][col - c] == null) {
+
+                        var dark = false
+
+                        if (byteIndex < data.length) {
+                            dark = (((data[byteIndex] >>> bitIndex) & 1) == 1)
+                        }
+
+                        var mask = QRUtil.getMask(maskPattern, row, col - c)
+
+                        if (mask) {
+                            dark = !dark
+                        }
+
+                        this.modules[row][col - c] = dark
+                        bitIndex--
+
+                        if (bitIndex == -1) {
+                            byteIndex++
+                            bitIndex = 7
+                        }
+                    }
+                }
+
+                row += inc
+
+                if (row < 0 || this.moduleCount <= row) {
+                    row -= inc
+                    inc = -inc
+                    break
+                }
+            }
+        }
+
+    }
+}
+
+
+
+
+
+//---------------------------------------------------------------------
+// QRMode
+//---------------------------------------------------------------------
+
+export enum QRMode {
+    MODE_NUMBER = 1 << 0,
+    MODE_ALPHA_NUM = 1 << 1,
+    MODE_8BIT_BYTE = 1 << 2,
+    MODE_KANJI = 1 << 3
+}
+
+//---------------------------------------------------------------------
+// QRErrorCorrectLevel
+//---------------------------------------------------------------------
+
+export enum QRErrorCorrectLevel {
+    L = 1,
+    M = 0,
+    Q = 3,
+    H = 2
+}
+
+//---------------------------------------------------------------------
+// QRMaskPattern
+//---------------------------------------------------------------------
+
+var QRMaskPattern = {
+    PATTERN000: 0,
+    PATTERN001: 1,
+    PATTERN010: 2,
+    PATTERN011: 3,
+    PATTERN100: 4,
+    PATTERN101: 5,
+    PATTERN110: 6,
+    PATTERN111: 7
+}
+
+//---------------------------------------------------------------------
+// QRUtil
+//---------------------------------------------------------------------
+
+var QRUtil = {
+
+    PATTERN_POSITION_TABLE: [
+        [],
+        [6, 18],
+        [6, 22],
+        [6, 26],
+        [6, 30],
+        [6, 34],
+        [6, 22, 38],
+        [6, 24, 42],
+        [6, 26, 46],
+        [6, 28, 50],
+        [6, 30, 54],
+        [6, 32, 58],
+        [6, 34, 62],
+        [6, 26, 46, 66],
+        [6, 26, 48, 70],
+        [6, 26, 50, 74],
+        [6, 30, 54, 78],
+        [6, 30, 56, 82],
+        [6, 30, 58, 86],
+        [6, 34, 62, 90],
+        [6, 28, 50, 72, 94],
+        [6, 26, 50, 74, 98],
+        [6, 30, 54, 78, 102],
+        [6, 28, 54, 80, 106],
+        [6, 32, 58, 84, 110],
+        [6, 30, 58, 86, 114],
+        [6, 34, 62, 90, 118],
+        [6, 26, 50, 74, 98, 122],
+        [6, 30, 54, 78, 102, 126],
+        [6, 26, 52, 78, 104, 130],
+        [6, 30, 56, 82, 108, 134],
+        [6, 34, 60, 86, 112, 138],
+        [6, 30, 58, 86, 114, 142],
+        [6, 34, 62, 90, 118, 146],
+        [6, 30, 54, 78, 102, 126, 150],
+        [6, 24, 50, 76, 102, 128, 154],
+        [6, 28, 54, 80, 106, 132, 158],
+        [6, 32, 58, 84, 110, 136, 162],
+        [6, 26, 54, 82, 110, 138, 166],
+        [6, 30, 58, 86, 114, 142, 170]
+    ],
+
+    G15: (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0),
+    G18: (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0),
+    G15_MASK: (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1),
+
+    getBCHTypeInfo: function (data) {
+        var d = data << 10
+        while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15) >= 0) {
+            d ^= (QRUtil.G15 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G15)))
+        }
+        return ((data << 10) | d) ^ QRUtil.G15_MASK
+    },
+
+    getBCHTypeNumber: function (data) {
+        var d = data << 12
+        while (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18) >= 0) {
+            d ^= (QRUtil.G18 << (QRUtil.getBCHDigit(d) - QRUtil.getBCHDigit(QRUtil.G18)))
+        }
+        return (data << 12) | d
+    },
+
+    getBCHDigit: function (data) {
+
+        var digit = 0
+
+        while (data != 0) {
+            digit++
+            data >>>= 1
+        }
+
+        return digit
+    },
+
+    getPatternPosition: function (typeNumber) {
+        return QRUtil.PATTERN_POSITION_TABLE[typeNumber - 1]
+    },
+
+    getMask: function (maskPattern, i, j) {
+
+        switch (maskPattern) {
+
+            case QRMaskPattern.PATTERN000: return (i + j) % 2 == 0
+            case QRMaskPattern.PATTERN001: return i % 2 == 0
+            case QRMaskPattern.PATTERN010: return j % 3 == 0
+            case QRMaskPattern.PATTERN011: return (i + j) % 3 == 0
+            case QRMaskPattern.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 == 0
+            case QRMaskPattern.PATTERN101: return (i * j) % 2 + (i * j) % 3 == 0
+            case QRMaskPattern.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 == 0
+            case QRMaskPattern.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 == 0
+
+            default:
+                throw new Error("bad maskPattern:" + maskPattern)
+        }
+    },
+
+    getErrorCorrectPolynomial: function (errorCorrectLength) {
+
+        var a = new QRPolynomial([1], 0)
+
+        for (var i = 0; i < errorCorrectLength; i++) {
+            a = a.multiply(new QRPolynomial([1, QRMath.gexp(i)], 0))
+        }
+
+        return a
+    },
+
+    getLengthInBits: function (mode, type) {
+
+        if (1 <= type && type < 10) {
+
+            // 1 - 9
+
+            switch (mode) {
+                case QRMode.MODE_NUMBER: return 10
+                case QRMode.MODE_ALPHA_NUM: return 9
+                case QRMode.MODE_8BIT_BYTE: return 8
+                case QRMode.MODE_KANJI: return 8
+                default:
+                    throw new Error("mode:" + mode)
+            }
+
+        } else if (type < 27) {
+
+            // 10 - 26
+
+            switch (mode) {
+                case QRMode.MODE_NUMBER: return 12
+                case QRMode.MODE_ALPHA_NUM: return 11
+                case QRMode.MODE_8BIT_BYTE: return 16
+                case QRMode.MODE_KANJI: return 10
+                default:
+                    throw new Error("mode:" + mode)
+            }
+
+        } else if (type < 41) {
+
+            // 27 - 40
+
+            switch (mode) {
+                case QRMode.MODE_NUMBER: return 14
+                case QRMode.MODE_ALPHA_NUM: return 13
+                case QRMode.MODE_8BIT_BYTE: return 16
+                case QRMode.MODE_KANJI: return 12
+                default:
+                    throw new Error("mode:" + mode)
+            }
+
+        } else {
+            throw new Error("type:" + type)
+        }
+    },
+
+    getLostPoint: function (qrCode) {
+
+        var moduleCount = qrCode.getModuleCount()
+
+        var lostPoint = 0
+
+        // LEVEL1
+
+        for (var row = 0; row < moduleCount; row++) {
+
+            for (var col = 0; col < moduleCount; col++) {
+
+                var sameCount = 0
+                var dark = qrCode.isDark(row, col)
+
+                for (var r = -1; r <= 1; r++) {
+
+                    if (row + r < 0 || moduleCount <= row + r) {
+                        continue
+                    }
+
+                    for (var c = -1; c <= 1; c++) {
+
+                        if (col + c < 0 || moduleCount <= col + c) {
+                            continue
+                        }
+
+                        if (r == 0 && c == 0) {
+                            continue
+                        }
+
+                        if (dark == qrCode.isDark(row + r, col + c)) {
+                            sameCount++
+                        }
+                    }
+                }
+
+                if (sameCount > 5) {
+                    lostPoint += (3 + sameCount - 5)
+                }
+            }
+        }
+
+        // LEVEL2
+
+        for (var row = 0; row < moduleCount - 1; row++) {
+            for (var col = 0; col < moduleCount - 1; col++) {
+                var count = 0
+                if (qrCode.isDark(row, col)) count++
+                if (qrCode.isDark(row + 1, col)) count++
+                if (qrCode.isDark(row, col + 1)) count++
+                if (qrCode.isDark(row + 1, col + 1)) count++
+                if (count == 0 || count == 4) {
+                    lostPoint += 3
+                }
+            }
+        }
+
+        // LEVEL3
+
+        for (var row = 0; row < moduleCount; row++) {
+            for (var col = 0; col < moduleCount - 6; col++) {
+                if (qrCode.isDark(row, col)
+                    && !qrCode.isDark(row, col + 1)
+                    && qrCode.isDark(row, col + 2)
+                    && qrCode.isDark(row, col + 3)
+                    && qrCode.isDark(row, col + 4)
+                    && !qrCode.isDark(row, col + 5)
+                    && qrCode.isDark(row, col + 6)) {
+                    lostPoint += 40
+                }
+            }
+        }
+
+        for (var col = 0; col < moduleCount; col++) {
+            for (var row = 0; row < moduleCount - 6; row++) {
+                if (qrCode.isDark(row, col)
+                    && !qrCode.isDark(row + 1, col)
+                    && qrCode.isDark(row + 2, col)
+                    && qrCode.isDark(row + 3, col)
+                    && qrCode.isDark(row + 4, col)
+                    && !qrCode.isDark(row + 5, col)
+                    && qrCode.isDark(row + 6, col)) {
+                    lostPoint += 40
+                }
+            }
+        }
+
+        // LEVEL4
+
+        var darkCount = 0
+
+        for (var col = 0; col < moduleCount; col++) {
+            for (var row = 0; row < moduleCount; row++) {
+                if (qrCode.isDark(row, col)) {
+                    darkCount++
+                }
+            }
+        }
+
+        var ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5
+        lostPoint += ratio * 10
+
+        return lostPoint
+    }
+
+}
+
+
+//---------------------------------------------------------------------
+// QRMath
+//---------------------------------------------------------------------
+
+var QRMath = {
+
+    glog: function (n) {
+
+        if (n < 1) {
+            throw new Error("glog(" + n + ")")
+        }
+
+        return QRMath.LOG_TABLE[n]
+    },
+
+    gexp: function (n) {
+
+        while (n < 0) {
+            n += 255
+        }
+
+        while (n >= 256) {
+            n -= 255
+        }
+
+        return QRMath.EXP_TABLE[n]
+    },
+
+    EXP_TABLE: new Array(256),
+
+    LOG_TABLE: new Array(256)
+
+}
+
+for (var i = 0; i < 8; i++) {
+    QRMath.EXP_TABLE[i] = 1 << i
+}
+for (var i = 8; i < 256; i++) {
+    QRMath.EXP_TABLE[i] = QRMath.EXP_TABLE[i - 4]
+        ^ QRMath.EXP_TABLE[i - 5]
+        ^ QRMath.EXP_TABLE[i - 6]
+        ^ QRMath.EXP_TABLE[i - 8]
+}
+for (var i = 0; i < 255; i++) {
+    QRMath.LOG_TABLE[QRMath.EXP_TABLE[i]] = i
+}
+
+//---------------------------------------------------------------------
+// QRPolynomial
+//---------------------------------------------------------------------
+
+class QRPolynomial {
+    num: any[]
+    constructor(num, shift) {
+
+        if (num.length == undefined) {
+            throw new Error(num.length + "/" + shift)
+        }
+
+        var offset = 0
+
+        while (offset < num.length && num[offset] == 0) {
+            offset++
+        }
+
+        this.num = new Array(num.length - offset + shift)
+        for (var i = 0; i < num.length - offset; i++) {
+            this.num[i] = num[i + offset]
+        }
+    }
+    get(index) {
+        return this.num[index]
+    }
+
+    getLength() {
+        return this.num.length
+    }
+
+    multiply(e) {
+
+        var num = new Array(this.getLength() + e.getLength() - 1)
+
+        for (var i = 0; i < this.getLength(); i++) {
+            for (var j = 0; j < e.getLength(); j++) {
+                num[i + j] ^= QRMath.gexp(QRMath.glog(this.get(i)) + QRMath.glog(e.get(j)))
+            }
+        }
+
+        return new QRPolynomial(num, 0)
+    }
+
+    mod(e) {
+
+        if (this.getLength() - e.getLength() < 0) {
+            return this
+        }
+
+        var ratio = QRMath.glog(this.get(0)) - QRMath.glog(e.get(0))
+
+        var num = new Array(this.getLength())
+
+        for (var i = 0; i < this.getLength(); i++) {
+            num[i] = this.get(i)
+        }
+
+        for (var i = 0; i < e.getLength(); i++) {
+            num[i] ^= QRMath.gexp(QRMath.glog(e.get(i)) + ratio)
+        }
+
+        // recursive call
+        return new QRPolynomial(num, 0).mod(e)
+    }
+}
+
+
+//---------------------------------------------------------------------
+// QRRSBlock
+//---------------------------------------------------------------------
+
+class QRRSBlock {
+    totalCount: any
+    dataCount: any
+    static RS_BLOCK_TABLE: any
+    constructor(totalCount, dataCount) {
+        this.totalCount = totalCount
+        this.dataCount = dataCount
+    }
+    static getRSBlocks(typeNumber, errorCorrectLevel) {
+
+        var rsBlock = QRRSBlock.getRsBlockTable(typeNumber, errorCorrectLevel)
+
+        if (rsBlock == undefined) {
+            throw new Error("bad rs block @ typeNumber:" + typeNumber + "/errorCorrectLevel:" + errorCorrectLevel)
+        }
+
+        var length = rsBlock.length / 3
+
+        var list = new Array()
+
+        for (var i = 0; i < length; i++) {
+
+            var count = rsBlock[i * 3 + 0]
+            var totalCount = rsBlock[i * 3 + 1]
+            var dataCount = rsBlock[i * 3 + 2]
+
+            for (var j = 0; j < count; j++) {
+                list.push(new QRRSBlock(totalCount, dataCount))
+            }
+        }
+
+        return list
+    }
+    static getRsBlockTable(typeNumber: number, errorCorrectLevel: QRErrorCorrectLevel) {
+        switch (errorCorrectLevel) {
+            case QRErrorCorrectLevel.L:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 0]
+            case QRErrorCorrectLevel.M:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 1]
+            case QRErrorCorrectLevel.Q:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 2]
+            case QRErrorCorrectLevel.H:
+                return QRRSBlock.RS_BLOCK_TABLE[(typeNumber - 1) * 4 + 3]
+            default:
+                return undefined
+        }
+    }
+}
+
+QRRSBlock.RS_BLOCK_TABLE = [
+    // L
+    // M
+    // Q
+    // H
+
+    // 1
+    [1, 26, 19],
+    [1, 26, 16],
+    [1, 26, 13],
+    [1, 26, 9],
+
+    // 2
+    [1, 44, 34],
+    [1, 44, 28],
+    [1, 44, 22],
+    [1, 44, 16],
+
+    // 3
+    [1, 70, 55],
+    [1, 70, 44],
+    [2, 35, 17],
+    [2, 35, 13],
+
+    // 4
+    [1, 100, 80],
+    [2, 50, 32],
+    [2, 50, 24],
+    [4, 25, 9],
+
+    // 5
+    [1, 134, 108],
+    [2, 67, 43],
+    [2, 33, 15, 2, 34, 16],
+    [2, 33, 11, 2, 34, 12],
+
+    // 6
+    [2, 86, 68],
+    [4, 43, 27],
+    [4, 43, 19],
+    [4, 43, 15],
+
+    // 7
+    [2, 98, 78],
+    [4, 49, 31],
+    [2, 32, 14, 4, 33, 15],
+    [4, 39, 13, 1, 40, 14],
+
+    // 8
+    [2, 121, 97],
+    [2, 60, 38, 2, 61, 39],
+    [4, 40, 18, 2, 41, 19],
+    [4, 40, 14, 2, 41, 15],
+
+    // 9
+    [2, 146, 116],
+    [3, 58, 36, 2, 59, 37],
+    [4, 36, 16, 4, 37, 17],
+    [4, 36, 12, 4, 37, 13],
+
+    // 10
+    [2, 86, 68, 2, 87, 69],
+    [4, 69, 43, 1, 70, 44],
+    [6, 43, 19, 2, 44, 20],
+    [6, 43, 15, 2, 44, 16],
+
+    // 11
+    [4, 101, 81],
+    [1, 80, 50, 4, 81, 51],
+    [4, 50, 22, 4, 51, 23],
+    [3, 36, 12, 8, 37, 13],
+
+    // 12
+    [2, 116, 92, 2, 117, 93],
+    [6, 58, 36, 2, 59, 37],
+    [4, 46, 20, 6, 47, 21],
+    [7, 42, 14, 4, 43, 15],
+
+    // 13
+    [4, 133, 107],
+    [8, 59, 37, 1, 60, 38],
+    [8, 44, 20, 4, 45, 21],
+    [12, 33, 11, 4, 34, 12],
+
+    // 14
+    [3, 145, 115, 1, 146, 116],
+    [4, 64, 40, 5, 65, 41],
+    [11, 36, 16, 5, 37, 17],
+    [11, 36, 12, 5, 37, 13],
+
+    // 15
+    [5, 109, 87, 1, 110, 88],
+    [5, 65, 41, 5, 66, 42],
+    [5, 54, 24, 7, 55, 25],
+    [11, 36, 12],
+
+    // 16
+    [5, 122, 98, 1, 123, 99],
+    [7, 73, 45, 3, 74, 46],
+    [15, 43, 19, 2, 44, 20],
+    [3, 45, 15, 13, 46, 16],
+
+    // 17
+    [1, 135, 107, 5, 136, 108],
+    [10, 74, 46, 1, 75, 47],
+    [1, 50, 22, 15, 51, 23],
+    [2, 42, 14, 17, 43, 15],
+
+    // 18
+    [5, 150, 120, 1, 151, 121],
+    [9, 69, 43, 4, 70, 44],
+    [17, 50, 22, 1, 51, 23],
+    [2, 42, 14, 19, 43, 15],
+
+    // 19
+    [3, 141, 113, 4, 142, 114],
+    [3, 70, 44, 11, 71, 45],
+    [17, 47, 21, 4, 48, 22],
+    [9, 39, 13, 16, 40, 14],
+
+    // 20
+    [3, 135, 107, 5, 136, 108],
+    [3, 67, 41, 13, 68, 42],
+    [15, 54, 24, 5, 55, 25],
+    [15, 43, 15, 10, 44, 16],
+
+    // 21
+    [4, 144, 116, 4, 145, 117],
+    [17, 68, 42],
+    [17, 50, 22, 6, 51, 23],
+    [19, 46, 16, 6, 47, 17],
+
+    // 22
+    [2, 139, 111, 7, 140, 112],
+    [17, 74, 46],
+    [7, 54, 24, 16, 55, 25],
+    [34, 37, 13],
+
+    // 23
+    [4, 151, 121, 5, 152, 122],
+    [4, 75, 47, 14, 76, 48],
+    [11, 54, 24, 14, 55, 25],
+    [16, 45, 15, 14, 46, 16],
+
+    // 24
+    [6, 147, 117, 4, 148, 118],
+    [6, 73, 45, 14, 74, 46],
+    [11, 54, 24, 16, 55, 25],
+    [30, 46, 16, 2, 47, 17],
+
+    // 25
+    [8, 132, 106, 4, 133, 107],
+    [8, 75, 47, 13, 76, 48],
+    [7, 54, 24, 22, 55, 25],
+    [22, 45, 15, 13, 46, 16],
+
+    // 26
+    [10, 142, 114, 2, 143, 115],
+    [19, 74, 46, 4, 75, 47],
+    [28, 50, 22, 6, 51, 23],
+    [33, 46, 16, 4, 47, 17],
+
+    // 27
+    [8, 152, 122, 4, 153, 123],
+    [22, 73, 45, 3, 74, 46],
+    [8, 53, 23, 26, 54, 24],
+    [12, 45, 15, 28, 46, 16],
+
+    // 28
+    [3, 147, 117, 10, 148, 118],
+    [3, 73, 45, 23, 74, 46],
+    [4, 54, 24, 31, 55, 25],
+    [11, 45, 15, 31, 46, 16],
+
+    // 29
+    [7, 146, 116, 7, 147, 117],
+    [21, 73, 45, 7, 74, 46],
+    [1, 53, 23, 37, 54, 24],
+    [19, 45, 15, 26, 46, 16],
+
+    // 30
+    [5, 145, 115, 10, 146, 116],
+    [19, 75, 47, 10, 76, 48],
+    [15, 54, 24, 25, 55, 25],
+    [23, 45, 15, 25, 46, 16],
+
+    // 31
+    [13, 145, 115, 3, 146, 116],
+    [2, 74, 46, 29, 75, 47],
+    [42, 54, 24, 1, 55, 25],
+    [23, 45, 15, 28, 46, 16],
+
+    // 32
+    [17, 145, 115],
+    [10, 74, 46, 23, 75, 47],
+    [10, 54, 24, 35, 55, 25],
+    [19, 45, 15, 35, 46, 16],
+
+    // 33
+    [17, 145, 115, 1, 146, 116],
+    [14, 74, 46, 21, 75, 47],
+    [29, 54, 24, 19, 55, 25],
+    [11, 45, 15, 46, 46, 16],
+
+    // 34
+    [13, 145, 115, 6, 146, 116],
+    [14, 74, 46, 23, 75, 47],
+    [44, 54, 24, 7, 55, 25],
+    [59, 46, 16, 1, 47, 17],
+
+    // 35
+    [12, 151, 121, 7, 152, 122],
+    [12, 75, 47, 26, 76, 48],
+    [39, 54, 24, 14, 55, 25],
+    [22, 45, 15, 41, 46, 16],
+
+    // 36
+    [6, 151, 121, 14, 152, 122],
+    [6, 75, 47, 34, 76, 48],
+    [46, 54, 24, 10, 55, 25],
+    [2, 45, 15, 64, 46, 16],
+
+    // 37
+    [17, 152, 122, 4, 153, 123],
+    [29, 74, 46, 14, 75, 47],
+    [49, 54, 24, 10, 55, 25],
+    [24, 45, 15, 46, 46, 16],
+
+    // 38
+    [4, 152, 122, 18, 153, 123],
+    [13, 74, 46, 32, 75, 47],
+    [48, 54, 24, 14, 55, 25],
+    [42, 45, 15, 32, 46, 16],
+
+    // 39
+    [20, 147, 117, 4, 148, 118],
+    [40, 75, 47, 7, 76, 48],
+    [43, 54, 24, 22, 55, 25],
+    [10, 45, 15, 67, 46, 16],
+
+    // 40
+    [19, 148, 118, 6, 149, 119],
+    [18, 75, 47, 31, 76, 48],
+    [34, 54, 24, 34, 55, 25],
+    [20, 45, 15, 61, 46, 16]
+]
+
+
+
+//---------------------------------------------------------------------
+// QRBitBuffer
+//---------------------------------------------------------------------
+
+class QRBitBuffer {
+    buffer: any[]
+    length: number
+    constructor() {
+        this.buffer = new Array()
+        this.length = 0
+    }
+    get(index) {
+        var bufIndex = Math.floor(index / 8)
+        return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) == 1
+    }
+
+    put(num, length) {
+        for (var i = 0; i < length; i++) {
+            this.putBit(((num >>> (length - i - 1)) & 1) == 1)
+        }
+    }
+
+    getLengthInBits() {
+        return this.length
+    }
+
+    putBit(bit) {
+
+        var bufIndex = Math.floor(this.length / 8)
+        if (this.buffer.length <= bufIndex) {
+            this.buffer.push(0)
+        }
+
+        if (bit) {
+            this.buffer[bufIndex] |= (0x80 >>> (this.length % 8))
+        }
+
+        this.length++
+    }
+}
diff --git a/packages/qrcode/tsconfig.json b/packages/qrcode/tsconfig.json
new file mode 100644
index 00000000..7aae5d2b
--- /dev/null
+++ b/packages/qrcode/tsconfig.json
@@ -0,0 +1,7 @@
+{
+    "extends": "../../tsconfig.json",
+    "compilerOptions": {
+        "baseUrl": "src",
+        "outDir": "dist"
+    }
+}
\ No newline at end of file