my attempt 2

app/src/main/AndroidManifest.xml

@@ -22,6 +22,7 @@
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES"/>
     <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.LIGHTS" />
 
     <uses-feature
         android:name="android.hardware.wifi"
@@ -29,6 +30,9 @@
     <uses-feature
         android:glEsVersion="0x00020000"
         android:required="true" />
+    <uses-feature
+        android:name="android.hardware.gamepad"
+        android:required="false" />
 
     <application
         android:allowBackup="true"

app/src/main/java/com/geode/launcher/GeometryDashActivity.kt

@@ -592,6 +592,10 @@ class GeometryDashActivity : AppCompatActivity(), Cocos2dxHelper.Cocos2dxHelperL
                 mGLSurfaceView?.sendInternalTimestampEvents = true
                 true
             }
+            GeodeUtils.CAPABILITY_CONTROLLER_DATA -> {
+                mGLSurfaceView?.enableControllerEvents()
+                true
+            }
             else -> false
         }
     }

app/src/main/java/com/geode/launcher/utils/GeodeUtils.kt

@@ -7,6 +7,9 @@ import android.content.ClipboardManager
 import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
+import android.hardware.lights.Light
+import android.hardware.lights.LightState
+import android.hardware.lights.LightsRequest
 import android.net.Uri
 import android.os.Build
 import android.os.Environment
@@ -16,6 +19,7 @@ import android.os.VibratorManager
 import android.provider.DocumentsContract
 import android.provider.Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION
 import android.util.Log
+import android.view.InputDevice
 import android.widget.Toast
 import androidx.activity.result.ActivityResultLauncher
 import androidx.activity.result.contract.ActivityResultContracts
@@ -547,6 +551,7 @@ object GeodeUtils {
     const val CAPABILITY_EXTENDED_INPUT = "extended_input"
     const val CAPABILITY_TIMESTAMP_INPUT = "timestamp_inputs"
     const val CAPABILITY_INTERNAL_CALLBACKS = "internal_callbacks_v1"
+    const val CAPABILITY_CONTROLLER_DATA = "controller_data"
 
     private var capabilityListener: WeakReference<CapabilityListener?> = WeakReference(null)
 
@@ -576,6 +581,188 @@ object GeodeUtils {
             .launchUrl(activity, url.toUri())
     }
 
+    /**
+     * Determines if any gamepad or joystick input devices are connected.
+     * This is useful during start, but tracking inputDeviceAdded events is better during runtime.
+     */
+    @JvmStatic
+    fun controllersConnected(): Int {
+        val deviceIds = InputDevice.getDeviceIds()
+        return deviceIds.count {
+            InputDevice.getDevice(it)?.run {
+                sources and InputDevice.SOURCE_GAMEPAD == InputDevice.SOURCE_GAMEPAD || sources and InputDevice.SOURCE_JOYSTICK == InputDevice.SOURCE_JOYSTICK
+            } ?: false
+        }
+    }
+
+    @JvmStatic
+    fun getConnectedDevices(): IntArray = InputDevice.getDeviceIds()
+
+    @JvmStatic
+    fun getDevice(deviceId: Int): InputDevice? = InputDevice.getDevice(deviceId)
+
+    @JvmStatic
+    fun getDeviceBatteryCapacity(deviceId: Int): Float {
+        val device = InputDevice.getDevice(deviceId) ?: return 0.0f
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            device.batteryState.capacity
+        } else {
+            0.0f
+        }
+    }
+
+    @JvmStatic
+    fun deviceHasBattery(deviceId: Int): Boolean {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+            return false
+        }
+
+        val device = InputDevice.getDevice(deviceId) ?: return false
+        return device.batteryState.isPresent
+    }
+
+    @JvmStatic
+    fun getDeviceBatteryStatus(deviceId: Int): Int {
+        val device = InputDevice.getDevice(deviceId) ?: return 0
+        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            device.batteryState.status
+        } else {
+            0
+        }
+    }
+
+    @JvmStatic
+    fun getDeviceLightsCount(deviceId: Int): Int {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+            return 0
+        }
+
+        val device = InputDevice.getDevice(deviceId) ?: return 0
+        val lightsManager = device.lightsManager
+
+        return lightsManager.lights.size
+    }
+
+    // this is based on paddleboat's api
+    @JvmStatic
+    fun getLightType(deviceId: Int): Int {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+            return 0
+        }
+
+        val device = InputDevice.getDevice(deviceId) ?: return 0
+        val lightsManager = device.lightsManager
+
+        var flags = 0
+        lightsManager.lights.forEach { light ->
+            if (light.type == Light.LIGHT_TYPE_PLAYER_ID) {
+                flags = flags or 1
+            } else if (light.hasRgbControl()) {
+                flags = flags or 2
+            }
+        }
+
+        return flags
+    }
+
+    /**
+     * Sets the color for a device.
+     * @return false if the given device does not exist or setting lights was otherwise unsuccessful
+     */
+    @JvmStatic
+    fun setDeviceLightColor(deviceId: Int, color: Int, type: Int): Boolean {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+            return false
+        }
+
+        val device = InputDevice.getDevice(deviceId) ?: return false
+        val lightsManager = device.lightsManager
+
+        val lights = lightsManager.lights
+        if (lights.isEmpty()) {
+            return false
+        }
+
+        val actedLights = lights.count { light ->
+            val state = LightState.Builder()
+
+            if (light.type == Light.LIGHT_TYPE_PLAYER_ID && (type and 1 == 1)) {
+                state.setPlayerId(color)
+            } else if (light.hasRgbControl() && (type and 2 == 2)) {
+                state.setColor(color)
+            } else {
+                return@count false
+            }
+
+            val request = LightsRequest.Builder()
+                    .addLight(light, state.build())
+                    .build()
+
+            lightsManager.openSession()
+                .requestLights(request)
+
+            true
+        }
+
+        return actedLights > 0
+    }
+
+    @JvmStatic
+    fun getDeviceHapticsCount(deviceId: Int): Int {
+        val device = InputDevice.getDevice(deviceId) ?: return 0
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.S) {
+            return if (device.vibrator.hasVibrator()) 1 else 0
+        }
+
+        val vibratorManager = device.vibratorManager
+        val vibratorIds = vibratorManager.vibratorIds
+        return vibratorIds.size
+    }
+
+    private fun performVibration(vibrator: Vibrator?, durationMs: Long, intensity: Int) {
+        vibrator?.apply {
+            if (intensity == 0) {
+                cancel()
+            } else {
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+                    val vibrationEffect = VibrationEffect.createOneShot(durationMs, intensity)
+                    vibrate(vibrationEffect)
+                } else {
+                    vibrate(durationMs)
+                }
+            }
+        }
+    }
+
+    /**
+     * Vibrates a given device. Set motorIdx == -1 to vibrate all available motors on a device.
+     */
+    @JvmStatic
+    fun vibrateDevice(deviceId: Int, durationMs: Long, intensity: Int, motorIdx: Int): Boolean {
+        val device = InputDevice.getDevice(deviceId) ?: return false
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
+            val vibratorManager = device.vibratorManager
+            val vibratorIds = vibratorManager.vibratorIds
+
+            if (motorIdx == -1) {
+                vibratorIds.forEach {
+                    val vibrator = vibratorManager.getVibrator(it)
+                    performVibration(vibrator, durationMs, intensity)
+                }
+            } else {
+                val deviceId = vibratorIds.getOrNull(motorIdx) ?: return false
+                val vibrator = vibratorManager.getVibrator(deviceId)
+                performVibration(vibrator, durationMs, intensity)
+            }
+        } else {
+            val vibrator = device.vibrator
+            performVibration(vibrator, durationMs, intensity)
+        }
+
+        return true
+    }
+
     external fun nativeKeyUp(keyCode: Int, modifiers: Int)
     external fun nativeKeyDown(keyCode: Int, modifiers: Int, isRepeating: Boolean)
     external fun nativeActionScroll(scrollX: Float, scrollY: Float)
@@ -588,4 +775,15 @@ object GeodeUtils {
      */
     external fun setNextInputTimestamp(timestamp: Long)
     external fun setNextInputTimestampInternal(timestamp: Long)
+
+    external fun setNextInputDevice(deviceId: Int, eventSource: Int)
+    external fun inputDeviceAdded(deviceId: Int)
+    external fun inputDeviceChanged(deviceId: Int)
+    external fun inputDeviceRemoved(deviceId: Int)
+
+    /**
+     * Sends all batched joystick events. The final position in each array represents the current position of that axis.
+     * Have fun!
+     */
+    external fun onJoystickEvent(leftX: FloatArray, leftY: FloatArray, rightX: FloatArray, rightY: FloatArray, hatX: FloatArray, hatY: FloatArray, leftTrigger: FloatArray, rightTrigger: FloatArray)
 }

app/src/main/java/org/cocos2dx/lib/Cocos2dxGLSurfaceView.kt

@@ -2,12 +2,14 @@ package org.cocos2dx.lib
 
 import android.app.Activity
 import android.content.Context
+import android.hardware.input.InputManager
 import android.opengl.GLSurfaceView
 import android.os.Build
 import android.os.Handler
 import android.os.Looper
 import android.os.Message
 import android.util.Log
+import android.view.InputDevice
 import android.view.KeyEvent
 import android.view.MotionEvent
 import android.view.Surface
@@ -16,6 +18,7 @@ import androidx.annotation.RequiresApi
 import androidx.appcompat.widget.AppCompatEditText
 import com.customRobTop.BaseRobTopActivity
 import com.geode.launcher.utils.GeodeUtils
+import kotlin.math.abs
 
 private const val HANDLER_OPEN_IME_KEYBOARD = 2
 private const val HANDLER_CLOSE_IME_KEYBOARD = 3
@@ -58,6 +61,8 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
     var sendTimestampEvents = false
     var sendInternalTimestampEvents = false
     var manualBackEvents = false
+    var controllerEventsEnabled = false
+        private set
 
     var cocos2dxEditText: AppCompatEditText? = null
         set(value) {
@@ -159,6 +164,16 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
             GeodeUtils.setNextInputTimestampInternal(timestamp)
     }
 
+    private fun sendNextEventDetails(event: KeyEvent) {
+        if (controllerEventsEnabled)
+            GeodeUtils.setNextInputDevice(event.deviceId, event.source)
+    }
+
+    private fun sendNextEventDetails(event: MotionEvent) {
+        if (controllerEventsEnabled)
+            GeodeUtils.setNextInputDevice(event.deviceId, event.source)
+    }
+
     override fun onTouchEvent(motionEvent: MotionEvent): Boolean {
         val pointerNumber = motionEvent.pointerCount
         val ids = IntArray(pointerNumber)
@@ -178,6 +193,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 val xDown = xs[0]
                 val f = ys[0]
                 queueEvent {
+                    sendNextEventDetails(motionEvent)
                     sendNextEventTimestamp(timestamp)
                     cocos2dxRenderer.handleActionDown(idDown, xDown, f)
                 }
@@ -188,6 +204,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 val f2 = xs[0]
                 val f3 = ys[0]
                 queueEvent {
+                    sendNextEventDetails(motionEvent)
                     sendNextEventTimestamp(timestamp)
                     cocos2dxRenderer.handleActionUp(idUp, f2, f3)
                 }
@@ -195,6 +212,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
             }
             MotionEvent.ACTION_MOVE -> {
                 queueEvent {
+                    sendNextEventDetails(motionEvent)
                     sendNextEventTimestamp(timestamp)
                     cocos2dxRenderer.handleActionMove(ids, xs, ys)
                 }
@@ -202,6 +220,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
             }
             MotionEvent.ACTION_CANCEL -> {
                 queueEvent {
+                    sendNextEventDetails(motionEvent)
                     sendNextEventTimestamp(timestamp)
                     cocos2dxRenderer.handleActionCancel(ids, xs, ys)
                 }
@@ -213,6 +232,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 val xPointerDown = motionEvent.getX(indexPointerDown)
                 val y = motionEvent.getY(indexPointerDown)
                 queueEvent {
+                    sendNextEventDetails(motionEvent)
                     sendNextEventTimestamp(timestamp)
                     cocos2dxRenderer.handleActionDown(idPointerDown, xPointerDown, y)
                 }
@@ -224,6 +244,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 val xPointerUp = motionEvent.getX(indexPointUp)
                 val y2 = motionEvent.getY(indexPointUp)
                 queueEvent {
+                    sendNextEventDetails(motionEvent)
                     sendNextEventTimestamp(timestamp)
                     cocos2dxRenderer.handleActionUp(idPointerUp, xPointerUp, y2)
                 }
@@ -273,6 +294,9 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
         } else {
             val currentTime = System.nanoTime()
             queueEvent {
+                if (controllerEventsEnabled)
+                    GeodeUtils.setNextInputDevice(-1, InputDevice.SOURCE_ANY)
+
                 sendNextEventTimestamp(currentTime)
                 GeodeUtils.nativeKeyDown(KeyEvent.KEYCODE_BACK, 0, false)
             }
@@ -295,6 +319,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 }
 
                 queueEvent {
+                    sendNextEventDetails(event)
                     sendNextEventTimestamp(event.eventTime * MS_TO_NS)
                     GeodeUtils.nativeKeyDown(keyCode, event.modifiers, event.repeatCount != 0)
                 }
@@ -318,6 +343,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 }
 
                 queueEvent {
+                    sendNextEventDetails(event)
                     sendNextEventTimestamp(event.eventTime * MS_TO_NS)
                     GeodeUtils.nativeKeyUp(keyCode, event.modifiers)
                 }
@@ -327,6 +353,65 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
         }
     }
 
+    // i'm lazy.
+    // https://developer.android.com/develop/ui/views/touch-and-input/game-controllers/controller-input
+    private fun getCenteredAxis(
+        event: MotionEvent,
+        device: InputDevice,
+        axis: Int,
+        historyPos: Int
+    ): Float {
+        device.getMotionRange(axis, event.source)?.apply {
+            val value: Float = if (historyPos < 0) {
+                event.getAxisValue(axis)
+            } else {
+                event.getHistoricalAxisValue(axis, historyPos)
+            }
+
+            if (abs(value) > flat) {
+                return value
+            }
+        }
+        return 0.0f
+    }
+
+    private fun getJoystickMotion(event: MotionEvent, axisHorizontal: Int, axisVertical: Int): Pair<FloatArray, FloatArray> {
+        val positionChangesX = ArrayList<Float>()
+        val positionChangesY = ArrayList<Float>()
+
+        val inputDevice = event.device
+
+        (0 until event.historySize).forEach { i ->
+            val x = getCenteredAxis(event, inputDevice, axisHorizontal, i)
+            val y = getCenteredAxis(event, inputDevice, axisVertical, i)
+            positionChangesX.add(x)
+            positionChangesY.add(y)
+        }
+
+        val x = getCenteredAxis(event, inputDevice, axisHorizontal, -1)
+        val y = getCenteredAxis(event, inputDevice, axisVertical, -1)
+        positionChangesX.add(x)
+        positionChangesY.add(y)
+
+        return Pair(positionChangesX.toFloatArray(), positionChangesY.toFloatArray())
+    }
+
+    private fun getJoystickMotion(event: MotionEvent, axis: Int): FloatArray {
+        val positionChanges = ArrayList<Float>()
+
+        val inputDevice = event.device
+
+        (0 until event.historySize).forEach { i ->
+            val x = getCenteredAxis(event, inputDevice, axis, i)
+            positionChanges.add(x)
+        }
+
+        val x = getCenteredAxis(event, inputDevice, axis, -1)
+        positionChanges.add(x)
+
+        return positionChanges.toFloatArray()
+    }
+
     override fun onGenericMotionEvent(event: MotionEvent?): Boolean {
         if (!useKeyboardEvents) {
             return super.onGenericMotionEvent(event)
@@ -339,6 +424,7 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
                 event.eventTimeNanos else event.eventTime * MS_TO_NS
 
             queueEvent {
+                sendNextEventDetails(event)
                 sendNextEventTimestamp(timestamp)
                 GeodeUtils.nativeActionScroll(scrollX, scrollY)
             }
@@ -346,6 +432,33 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
             return true
         }
 
+        if (controllerEventsEnabled && event?.action == MotionEvent.ACTION_MOVE && event.source and InputDevice.SOURCE_JOYSTICK == InputDevice.SOURCE_JOYSTICK) {
+            val (motionLeftX, motionLeftY) = getJoystickMotion(event, MotionEvent.AXIS_X, MotionEvent.AXIS_Y)
+            val (motionRightX, motionRightY) = getJoystickMotion(event, MotionEvent.AXIS_Z, MotionEvent.AXIS_RZ)
+            val (motionDPadX, motionDPadY) = getJoystickMotion(event, MotionEvent.AXIS_HAT_X, MotionEvent.AXIS_HAT_Y)
+
+            val motionLTrigger = getJoystickMotion(event, MotionEvent.AXIS_LTRIGGER)
+            val motionRTrigger = getJoystickMotion(event, MotionEvent.AXIS_RTRIGGER)
+
+            // i'm sure this is great for performance
+            val timestamp = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE)
+                event.eventTimeNanos else event.eventTime * MS_TO_NS
+
+            queueEvent {
+                sendNextEventDetails(event)
+                sendNextEventTimestamp(timestamp)
+
+                GeodeUtils.onJoystickEvent(
+                    motionLeftX, motionLeftY,
+                    motionRightX, motionRightY,
+                    motionDPadX, motionDPadY,
+                    motionLTrigger, motionRTrigger
+                )
+            }
+
+            return true
+        }
+
         return super.onGenericMotionEvent(event)
     }
 
@@ -365,4 +478,40 @@ class Cocos2dxGLSurfaceView(context: Context) : GLSurfaceView(context) {
     fun deleteBackward() {
         queueEvent { cocos2dxRenderer.handleDeleteBackward() }
     }
+
+    fun enableControllerEvents() {
+        if (controllerEventsEnabled) {
+            return
+        }
+
+        controllerEventsEnabled = true
+
+        val inputManager = context.getSystemService(Context.INPUT_SERVICE) as InputManager
+        inputManager.registerInputDeviceListener(InputListener, null)
+    }
+
+    fun disableControllerEvents() {
+        if (!controllerEventsEnabled) {
+            return
+        }
+
+        controllerEventsEnabled = true
+
+        val inputManager = context.getSystemService(Context.INPUT_SERVICE) as InputManager
+        inputManager.unregisterInputDeviceListener(InputListener)
+    }
+
+    object InputListener : InputManager.InputDeviceListener {
+        override fun onInputDeviceAdded(deviceId: Int) {
+            GeodeUtils.inputDeviceAdded(deviceId)
+        }
+
+        override fun onInputDeviceChanged(deviceId: Int) {
+            GeodeUtils.inputDeviceChanged(deviceId)
+        }
+
+        override fun onInputDeviceRemoved(deviceId: Int) {
+            GeodeUtils.inputDeviceRemoved(deviceId)
+        }
+    }
 }