support relative setPosition, add hardware keyboard listener + control, log FPS

2024-02-03 11:55:44 +08:00
parent 0d9cf8a9ff
commit 63a52025dd
11 changed files with 238 additions and 26 deletions
--- a/lib/hardware/hardware_keyboard_listener.dart
+++ b/lib/hardware/hardware_keyboard_listener.dart
@@ -0,0 +1,54 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_filament/entities/entity_transform_controller.dart';
+import 'package:flutter_filament/filament_controller.dart';
+
+class HardwareKeyboardListener {
+  final EntityTransformController _controller;
+  HardwareKeyboardListener(this._controller) {
+    // Get the global handler.
+    final KeyMessageHandler? existing =
+        ServicesBinding.instance.keyEventManager.keyMessageHandler;
+    // The handler is guaranteed non-null since
+    // `FallbackKeyEventRegistrar.instance` is only called during
+    // `Focus.onFocusChange`, at which time `ServicesBinding.instance` must
+    // have been called somewhere.
+    assert(existing != null);
+    // Assign the global handler with a patched handler.
+    ServicesBinding.instance.keyEventManager.keyMessageHandler = (keyMessage) {
+      if (keyMessage.rawEvent == null) {
+        return false;
+      }
+      var event = keyMessage.rawEvent!;
+      switch (event.logicalKey) {
+        case LogicalKeyboardKey.keyW:
+          (event is RawKeyDownEvent)
+              ? _controller.forwardPressed()
+              : _controller.forwardReleased();
+          break;
+        case LogicalKeyboardKey.keyA:
+          event is RawKeyDownEvent
+              ? _controller.strafeLeftPressed()
+              : _controller.strafeLeftReleased();
+          break;
+        case LogicalKeyboardKey.keyS:
+          event is RawKeyDownEvent
+              ? _controller.backPressed()
+              : _controller.backReleased();
+          break;
+        case LogicalKeyboardKey.keyD:
+          event is RawKeyDownEvent
+              ? _controller.strafeRightPressed()
+              : _controller.strafeRightReleased();
+          break;
+        default:
+          break;
+      }
+      return true;
+    };
+  }
+
+  void dispose() {
+    ServicesBinding.instance.keyEventManager.keyMessageHandler = null;
+    _controller.dispose();
+  }
+}