Basic app layout, with a sounder mode

.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx

TODO

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+Basic:
+* Multithreaded sounder
+* Correct tone length calculation
+* Settings
+
+* Koch lesson select
+* Run a koch lesson
+* Koch result analysis screen
+* Remember last lesson
+
+Polish:
+* Better user input
+* Visual styling
+
+Bonus:
+* Morse machine
+* Score/training history
+* Send mode

app/.gitignore

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+/build

app/DitDahGenerator.kts

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+    aswd

app/build.gradle

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+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        applicationId "com.example.ecwt"
+        minSdkVersion 23
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+// To inline the bytecode built with JVM target 1.8 into
+// bytecode that is being built with JVM target 1.6. (e.g. navArgs)
+
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = "1.8"
+    }
+
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'androidx.core:core-ktx:1.0.2'
+    implementation 'com.google.android.material:material:1.0.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.navigation:navigation-fragment-ktx:2.0.0'
+    implementation 'androidx.navigation:navigation-ui-ktx:2.0.0'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/example/ecwt/ExampleInstrumentedTest.kt

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+package com.example.ecwt
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.ecwt", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.ecwt">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity
+            android:name=".TrainingActivity"
+            android:parentActivityName=".MainActivity"
+            android:windowSoftInputMode="stateAlwaysVisible">
+            <meta-data android:name="android.support.PARENT_ACTIVITY" android:value=".MainActivity" />
+        </activity>
+        <activity
+            android:name=".CWSettingsActivity"
+            android:parentActivityName=".MainActivity">
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value=".MainActivity" />
+        </activity>
+        <activity
+            android:name=".MainActivity"
+            android:label="@string/app_name"
+            android:theme="@style/AppTheme.NoActionBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

app/src/main/java/com/example/ecwt/CWSettingsActivity.kt

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+package com.example.ecwt
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+
+class CWSettingsActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_cw_settings)
+    }
+}

app/src/main/java/com/example/ecwt/DitDahGenerator.kt

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+package com.example.ecwt
+
+import android.media.AudioAttributes
+import android.media.AudioFormat
+import android.media.AudioTrack
+import android.media.MediaDataSource
+import android.view.KeyEvent
+import kotlin.math.PI
+import kotlin.math.sin
+
+enum class SoundTypes {
+    DIT, DAH, LETTER_SPACE, WORD_SPACE
+}
+
+fun StringToSoundSequence(s : String) : List<SoundTypes> {
+    if(s.isEmpty())
+    {
+        return listOf();
+    }
+
+    val first = when(s[0]) {
+        ' ' -> listOf(SoundTypes.WORD_SPACE)
+        'A' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE) 
+        'B' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE) 
+        'C' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'D' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'E' -> listOf(SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'F' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'G' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'H' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'I' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'J' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'K' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'L' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'M' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'N' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'O' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'P' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'Q' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'R' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'S' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        'T' -> listOf(SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'U' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'V' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'W' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'X' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'Y' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        'Z' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        '0' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        '1' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        '2' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        '3' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        '4' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        '5' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        '6' -> listOf(SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        '7' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        '8' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        '9' -> listOf(SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        '.' -> listOf(SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.WORD_SPACE)
+        '?' -> listOf(SoundTypes.DIT, SoundTypes.DIT, SoundTypes.DAH, SoundTypes.DAH, SoundTypes.DIT, SoundTypes.DIT, SoundTypes.WORD_SPACE)
+        else -> { listOf() }
+    }
+
+    return first + StringToSoundSequence(s.substring(1));
+}
+
+// Almost certainly the wrong way to do this
+fun KeycodeToSoundSequence(keycode : Int) : List<SoundTypes> {
+    return when(keycode) {
+        KeyEvent.KEYCODE_A -> StringToSoundSequence("A");
+        KeyEvent.KEYCODE_B -> StringToSoundSequence("B");
+        KeyEvent.KEYCODE_C -> StringToSoundSequence("C");
+        KeyEvent.KEYCODE_D -> StringToSoundSequence("D");
+        KeyEvent.KEYCODE_E -> StringToSoundSequence("E");
+        KeyEvent.KEYCODE_F -> StringToSoundSequence("F");
+        KeyEvent.KEYCODE_G -> StringToSoundSequence("G");
+        KeyEvent.KEYCODE_H -> StringToSoundSequence("H");
+        KeyEvent.KEYCODE_I -> StringToSoundSequence("I");
+        KeyEvent.KEYCODE_J -> StringToSoundSequence("J");
+        KeyEvent.KEYCODE_K -> StringToSoundSequence("K");
+        KeyEvent.KEYCODE_L -> StringToSoundSequence("L");
+        KeyEvent.KEYCODE_M -> StringToSoundSequence("M");
+        KeyEvent.KEYCODE_N -> StringToSoundSequence("N");
+        KeyEvent.KEYCODE_O -> StringToSoundSequence("O");
+        KeyEvent.KEYCODE_P -> StringToSoundSequence("P");
+        KeyEvent.KEYCODE_Q -> StringToSoundSequence("Q");
+        KeyEvent.KEYCODE_R -> StringToSoundSequence("R");
+        KeyEvent.KEYCODE_S -> StringToSoundSequence("S");
+        KeyEvent.KEYCODE_T -> StringToSoundSequence("T");
+        KeyEvent.KEYCODE_U -> StringToSoundSequence("U");
+        KeyEvent.KEYCODE_V -> StringToSoundSequence("V");
+        KeyEvent.KEYCODE_W -> StringToSoundSequence("W");
+        KeyEvent.KEYCODE_X -> StringToSoundSequence("X");
+        KeyEvent.KEYCODE_Y -> StringToSoundSequence("Y");
+        KeyEvent.KEYCODE_Z -> StringToSoundSequence("Z");
+        KeyEvent.KEYCODE_0 -> StringToSoundSequence("0");
+        KeyEvent.KEYCODE_1 -> StringToSoundSequence("1");
+        KeyEvent.KEYCODE_2 -> StringToSoundSequence("2");
+        KeyEvent.KEYCODE_3 -> StringToSoundSequence("3");
+        KeyEvent.KEYCODE_4 -> StringToSoundSequence("4");
+        KeyEvent.KEYCODE_5 -> StringToSoundSequence("5");
+        KeyEvent.KEYCODE_6 -> StringToSoundSequence("6");
+        KeyEvent.KEYCODE_7 -> StringToSoundSequence("7");
+        KeyEvent.KEYCODE_8 -> StringToSoundSequence("8");
+        KeyEvent.KEYCODE_9 -> StringToSoundSequence("9");
+        KeyEvent.KEYCODE_PERIOD -> StringToSoundSequence(".");
+        //KeyEvent.KEYCODE_S -> StringToSoundSequence("?");
+        else -> { StringToSoundSequence(" ")}
+    }
+
+}
+
+
+class DitDahGenerator : MediaDataSource {
+    constructor() : super()
+
+    override fun close() {
+    }
+    override fun getSize() : Long {
+        return 80000;
+    }
+
+    override fun readAt(position: Long, buffer: ByteArray?, offset: Int, size: Int): Int {
+        if(position > 10000000)
+            return -1;
+/*
+        for(i in 0..size) {
+            val xt = sin((i + offset) / 44e3f) * 255.0f;
+            buffer?.set(i + offset, xt.toByte());
+        }
+*/
+        return size;
+    }
+
+}
+
+class DitDahGeneratorSettings
+{
+    val toneFrequency = 650
+    var WordsPerMinute = 20;
+}
+
+class DitDahSoundStream {
+    constructor(config : DitDahGeneratorSettings) {
+        //TODO: Compute these properly
+        val ditLengthSeconds = 0.15f;
+        val dahLengthSeconds = ditLengthSeconds * 3.0f;
+
+        val ditLengthInSamples = (ditLengthSeconds * mAudioSampleRate).toInt();
+        val dahLengthInSamples = (dahLengthSeconds * mAudioSampleRate).toInt();
+        val interCharacterSpacingInSamples = ditLengthInSamples;
+
+        mDitSound = ShortArray(ditLengthInSamples + interCharacterSpacingInSamples);
+        mDahSound = ShortArray(dahLengthInSamples + interCharacterSpacingInSamples);
+        mWordSpacingSound = ShortArray((dahLengthSeconds * mAudioSampleRate).toInt());
+        mCharacterSpacingSound = ShortArray((ditLengthSeconds * mAudioSampleRate).toInt());
+
+        //TODO: Ramp up? Make sound nicer? Seems to have clipping - just in the emulator?
+        val invSampleRate = 1.0 / mAudioSampleRate.toFloat()
+        for(i in 0 until ditLengthInSamples) {
+            mDitSound[i] = (0x7fff.toFloat() * sin( 2.0f * PI * i * config.toneFrequency * invSampleRate)).toShort();
+        }
+
+        for(i in 0 until dahLengthInSamples) {
+            mDahSound[i] = (0x7fff.toFloat() * sin(2.0f * PI * i * config.toneFrequency * invSampleRate) ).toShort();
+        }
+    }
+
+    fun enqueue(symbols : List<SoundTypes>) {
+        // TODO  want to be able to call this multi-threaded, while this owns a thread which writes the samples
+        for (sym in symbols) {
+            when (sym) {
+                //TODO These sounds should include a blank space
+                SoundTypes.DIT -> mSoundPlayer.write(mDitSound, 0, mDitSound.size)
+                SoundTypes.DAH -> mSoundPlayer.write(mDahSound, 0, mDahSound.size)
+                SoundTypes.LETTER_SPACE -> mSoundPlayer.write(mCharacterSpacingSound, 0, mCharacterSpacingSound.size)
+                SoundTypes.WORD_SPACE -> mSoundPlayer.write(mWordSpacingSound, 0, mWordSpacingSound.size)
+            }
+        }
+
+        if(mSoundPlayer.playState != AudioTrack.PLAYSTATE_PLAYING)
+            mSoundPlayer.play()
+
+    }
+
+    private val mAudioSampleRate = 44100;
+
+    private val mDitSound : ShortArray;
+    private val mDahSound : ShortArray;
+    private val mWordSpacingSound : ShortArray;
+    private val mCharacterSpacingSound : ShortArray;
+
+    private val mSoundPlayer : AudioTrack = AudioTrack.Builder()
+        .setAudioAttributes(
+            AudioAttributes.Builder()
+                .setUsage(AudioAttributes.USAGE_GAME)
+                .setContentType(AudioAttributes.CONTENT_TYPE_MUSIC)
+                .build()
+        )
+        .setAudioFormat(
+            AudioFormat.Builder()
+                .setEncoding(AudioFormat.ENCODING_PCM_16BIT)
+                .setSampleRate(mAudioSampleRate)
+                .setChannelMask(AudioFormat.CHANNEL_OUT_MONO)
+                .build()
+        )
+        .setBufferSizeInBytes(mAudioSampleRate)
+        .build();
+}

app/src/main/java/com/example/ecwt/MainActivity.kt

@@ -0,0 +1,56 @@
+package com.example.ecwt
+
+import android.content.Intent
+import android.os.Bundle
+import com.google.android.material.snackbar.Snackbar
+import androidx.appcompat.app.AppCompatActivity
+import android.view.Menu
+import android.view.MenuItem
+import android.view.View
+
+import kotlinx.android.synthetic.main.activity_main.*
+
+const val SOUNDER_MODE = "es.eoinrul.ecwt.SOUNDER_MODE"
+const val SOUNDER_MODE_USER_INPUT = "es.eoinrul.ecwt.SOUNDER_MODE.USER_INPUT";
+
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+        //setSupportActionBar(toolbar)
+
+        /*fab.setOnClickListener { view ->
+            Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
+                    .setAction("Action", null).show()
+        }*/
+    }
+
+    override fun onCreateOptionsMenu(menu: Menu): Boolean {
+        // Inflate the menu; this adds items to the action bar if it is present.
+        menuInflater.inflate(R.menu.menu_main, menu)
+        return true
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        // Handle action bar item clicks here. The action bar will
+        // automatically handle clicks on the Home/Up button, so long
+        // as you specify a parent activity in AndroidManifest.xml.
+        return when(item.itemId) {
+            R.id.action_settings -> true
+            else -> super.onOptionsItemSelected(item)
+        }
+    }
+
+    fun openSettings(view: View) {
+        val intent = Intent(this, CWSettingsActivity::class.java);
+        startActivity(intent);
+    }
+
+    fun openSounder(view: View) {
+        val intent = Intent(this, TrainingActivity::class.java).apply {
+            putExtra(SOUNDER_MODE, SOUNDER_MODE_USER_INPUT)
+        }
+        startActivity(intent);
+    }
+}

app/src/main/java/com/example/ecwt/TrainingActivity.kt

@@ -0,0 +1,58 @@
+package com.example.ecwt
+
+import android.media.*
+import android.os.Bundle
+import android.view.KeyEvent
+import android.view.View
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+
+class TrainingActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_training)
+
+        //val sounderMode = intent.getStringExtra(SOUNDER_MODE);
+
+        mTextViewTest = findViewById<TextView>(R.id.TestEnteredText);
+
+        mSoundPlayer = DitDahSoundStream(DitDahGeneratorSettings())
+        onKeyUp(KeyEvent.KEYCODE_E, KeyEvent(0,0))
+    }
+
+    fun startTraining(view: View) {
+    }
+
+    override fun onKeyUp(keyCode: Int, event: KeyEvent): Boolean {
+        val sequence = KeycodeToSoundSequence(keyCode);
+
+        mTextViewTest?.text = sequenceToString(sequence);
+
+        mSoundPlayer?.enqueue(sequence);
+        return true;
+    }
+
+    override fun onPause() {
+        super.onPause();
+    }
+
+
+    private fun sequenceToString(sequence: List<SoundTypes>) : String {
+        var ret = String()
+        for(symbol in sequence) {
+            ret += when(symbol) {
+                SoundTypes.DIT -> "·"
+                SoundTypes.DAH -> "-"
+                else -> " "
+            }
+        }
+
+        return ret
+    }
+
+    private var mTextViewTest : TextView? = null;
+    private var mMediaPlayer : MediaPlayer? = null;
+
+    private var mSoundPlayer : DitDahSoundStream? = null;
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

app/src/main/res/layout/activity_cw_settings.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".CWSettingsActivity">
+
+    <TextView
+        android:id="@+id/textView"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="176dp"
+        android:layout_marginLeft="176dp"
+        android:layout_marginEnd="176dp"
+        android:layout_marginRight="176dp"
+        android:text="SETTINGS GO HERE"
+        android:textSize="24sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        tools:layout_editor_absoluteY="16dp" />
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_margin="16px"
+        android:orientation="vertical">
+
+        <Button
+            android:id="@+id/Sounder"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="openSounder"
+            android:text="Button" />
+
+        <Button
+            android:id="@+id/button2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="Button" />
+
+        <Button
+            android:id="@+id/button3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:onClick="openSettings"
+            android:text="To settings" />
+    </LinearLayout>
+</androidx.coordinatorlayout.widget.CoordinatorLayout>

app/src/main/res/layout/activity_training.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".TrainingActivity">
+
+    <TextView
+        android:id="@+id/TestEnteredText"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="TestEnteredText"
+        android:textSize="36sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        tools:layout_editor_absoluteY="44dp" />
+
+    <Button
+        android:id="@+id/button4"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="161dp"
+        android:layout_marginTop="40dp"
+        android:onClick="startTraining"
+        android:text="Button"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/TestEnteredText" />
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/menu/menu_main.xml

@@ -0,0 +1,9 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    tools:context="com.example.ecwt.MainActivity" >
+    <item android:id="@+id/action_settings"
+        android:title="@string/action_settings"
+        android:orderInCategory="100"
+        app:showAsAction="never" />
+</menu>

app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/navigation/nav_graph.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/nav_graph"
+    app:startDestination="@id/FirstFragment">
+
+    <fragment
+        android:id="@+id/FirstFragment"
+        android:name="com.example.ecwt.FirstFragment"
+        android:label="@string/first_fragment_label"
+        tools:layout="@layout/fragment_first" >
+
+        <action
+            android:id="@+id/action_FirstFragment_to_SecondFragment"
+            app:destination="@id/SecondFragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/SecondFragment"
+        android:name="com.example.ecwt.SecondFragment"
+        android:label="@string/second_fragment_label"
+        tools:layout="@layout/fragment_second" >
+
+        <action
+            android:id="@+id/action_SecondFragment_to_FirstFragment"
+            app:destination="@id/FirstFragment" />
+    </fragment>
+</navigation>

app/src/main/res/values/colors.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="colorPrimary">#6200EE</color>
+    <color name="colorPrimaryDark">#3700B3</color>
+    <color name="colorAccent">#03DAC5</color>
+</resources>

app/src/main/res/values/dimens.xml

@@ -0,0 +1,3 @@
+<resources>
+    <dimen name="fab_margin">16dp</dimen>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,12 @@
+<resources>
+    <string name="app_name">Ecwt</string>
+    <string name="action_settings">Settings</string>
+    <!-- Strings used for fragments for navigation -->
+    <string name="first_fragment_label">First Fragment</string>
+    <string name="second_fragment_label">Second Fragment</string>
+    <string name="next">Next</string>
+    <string name="previous">Previous</string>
+
+    <string name="hello_first_fragment">Hello first fragment</string>
+    <string name="hello_second_fragment">Hello second fragment. Arg: %1$s</string>
+</resources>

app/src/main/res/values/styles.xml

@@ -0,0 +1,17 @@
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
+</resources>

app/src/test/java/com/example/ecwt/ExampleUnitTest.kt

@@ -0,0 +1,17 @@
+package com.example.ecwt
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}

build.gradle

@@ -0,0 +1,29 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext.kotlin_version = '1.3.71'
+    repositories {
+        google()
+        jcenter()
+        
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.6.3'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

gradle.properties

@@ -0,0 +1,21 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Mon May 11 14:24:25 BST 2020
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.4-all.zip

gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle

@@ -0,0 +1,2 @@
+rootProject.name='Ecwt'
+include ':app'