throttle and rudder update

app/src/main/java/com/example/flightgearcontrollerapp/model/FGModel.kt

@@ -3,19 +3,10 @@ package com.example.flightgearcontrollerapp.model
 
 class FGModel {
     private val telnetClient = TelnetClient()
+    private var isConnected =false
     private var isExceptionOccurred = false
-
-    //private val joystickView = JoystickView()
     private var isTouchingJoystick = false
 
-/*
-    private val jsCenterX = 0
-    private val jsCenterY = 0
-    private val jsOuterRadius = 0
-    private val jsInnerRadius = 0
-*/
-
-
     fun connect(ipAddress: String, portAddress: String): Boolean {
         var res = false
         val t = Thread {
@@ -38,11 +29,25 @@ class FGModel {
             e.printStackTrace()
             return false
         }
+        isConnected = true
         return res
     }
 
     fun disconnect() {
         telnetClient.disconnect()
+        isConnected = false
+    }
+
+    fun setThrottle(fl: Float) {
+        if(isConnected) {
+            telnetClient.updateThrottle(fl)
+        }
+    }
+
+    fun setRudder(fl: Float) {
+        if(isConnected) {
+            telnetClient.updateRudder(fl)
+        }
     }
 
 }

app/src/main/java/com/example/flightgearcontrollerapp/model/TelnetClient.kt

@@ -3,16 +3,21 @@ package com.example.flightgearcontrollerapp.model
 import java.io.PrintWriter
 import java.net.InetSocketAddress
 import java.net.Socket
+import java.util.concurrent.ExecutorService
+import java.util.concurrent.Executors
 
 class TelnetClient{
 
     private lateinit var client:Socket
     private lateinit var output:PrintWriter
+    private lateinit var executor: ExecutorService
+
     fun connect(ipAddress: String, portAddress: Int): Boolean {
         return try {
             client = Socket()
             client.connect(InetSocketAddress(ipAddress, portAddress),5000)
             output = PrintWriter(client.getOutputStream(), true)
+            executor = Executors.newSingleThreadExecutor();
             true
         }catch (e: Exception){
             e.printStackTrace()
@@ -28,4 +33,12 @@ class TelnetClient{
             e.printStackTrace()
         }
     }
+
+    fun updateThrottle(fl: Float) {
+        executor.execute { output.print("set /controls/engines/current-engine/throttle $fl\r\n");output.flush() }
+    }
+
+    fun updateRudder(fl: Float) {
+        executor.execute { output.print("set /controls/flight/rudder $fl\r\n");output.flush() }
+    }
 }

app/src/main/java/com/example/flightgearcontrollerapp/view_model/FGViewModel.kt

@@ -2,6 +2,7 @@ package com.example.flightgearcontrollerapp.view_model
 
 import androidx.lifecycle.ViewModel
 import com.example.flightgearcontrollerapp.model.FGModel
+import java.util.concurrent.ExecutorService
 
 class FGViewModel : ViewModel() {
     private val model = FGModel()
@@ -15,4 +16,13 @@ class FGViewModel : ViewModel() {
     fun disconnectFromFG() {
         model.disconnect()
     }
+
+    fun setThrottle(fl: Float) {
+        model.setThrottle(fl)
+    }
+
+    fun setRudder(fl: Float) {
+        model.setRudder(fl)
+    }
+
 }

app/src/main/java/com/example/flightgearcontrollerapp/views/MainActivity.kt

@@ -12,14 +12,45 @@ import androidx.appcompat.app.AppCompatActivity
 import com.example.flightgearcontrollerapp.R
 import com.example.flightgearcontrollerapp.R.id.*
 import com.example.flightgearcontrollerapp.view_model.FGViewModel
+import com.google.android.material.slider.Slider
 
 
 class MainActivity : AppCompatActivity() {
     private var isConnected = false
     private val vmConnection = FGViewModel()
+    private lateinit var throttleSlider: Slider
+    private lateinit var rudderSlider: Slider
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
+        throttleSlider = findViewById(slider_throttle)
+        rudderSlider = findViewById(slider_rudder)
+        throttleSlider.addOnSliderTouchListener(object : Slider.OnSliderTouchListener {
+            override fun onStartTrackingTouch(slider: Slider) {
+                vmConnection.setThrottle(slider.value)
+            }
+            override fun onStopTrackingTouch(slider: Slider) {
+                vmConnection.setThrottle(slider.value)
+            }
+        })
+
+        throttleSlider.addOnChangeListener { _, value, _ ->
+             vmConnection.setThrottle(value)
+        }
+        rudderSlider.addOnSliderTouchListener(object : Slider.OnSliderTouchListener {
+            override fun onStartTrackingTouch(slider: Slider) {
+                vmConnection.setRudder(slider.value)
+            }
+            override fun onStopTrackingTouch(slider: Slider) {
+                vmConnection.setRudder(slider.value)
+            }
+        })
+
+        rudderSlider.addOnChangeListener { _, value, _ ->
+            vmConnection.setRudder(value)
+        }
+
+
     }
 
     fun onClickConnect(view: View) {

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

@@ -13,7 +13,7 @@
             type="com.example.flightgearcontrollerapp.view_model.JoyStickVM"/>
         <variable
             name="model"
-            type="com.example.flightgearcontrollerapp.view_model.FGViewModel"/>
+            type="com.example.flightgearcontrollerapp.model.FGModel"/>
     </data>
 
     <androidx.constraintlayout.widget.ConstraintLayout
@@ -182,9 +182,11 @@
                         android:gravity="center">
 
                         <com.google.android.material.slider.Slider
+                            android:id="@+id/slider_throttle"
                             android:layout_width="match_parent"
                             android:layout_height="match_parent"
                             android:rotation="270"
+
                             android:value="0"
                             android:valueFrom="0"
                             android:valueTo="1" />
@@ -213,6 +215,7 @@
                     android:textStyle="bold" />
 
                 <com.google.android.material.slider.Slider
+                    android:id="@+id/slider_rudder"
                     android:layout_width="match_parent"
                     android:layout_marginLeft="30dp"
                     android:layout_marginRight="30dp"