Migrate examples back, change to monorepo (#701)

examples/lib/stories/components/debug.dart

@@ -0,0 +1,73 @@
+import 'dart:ui';
+
+import 'package:flame/components.dart';
+import 'package:flame/game.dart';
+
+class LogoCompomnent extends SpriteComponent with HasGameRef<DebugGame> {
+  static const int speed = 150;
+
+  int xDirection = 1;
+  int yDirection = 1;
+
+  LogoCompomnent(Sprite sprite) : super(sprite: sprite, size: sprite.srcSize);
+
+  @override
+  void update(double dt) {
+    super.update(dt);
+
+    x += xDirection * speed * dt;
+
+    final rect = toRect();
+
+    if ((x <= 0 && xDirection == -1) ||
+        (rect.right >= gameRef.size.x && xDirection == 1)) {
+      xDirection = xDirection * -1;
+    }
+
+    y += yDirection * speed * dt;
+
+    if ((y <= 0 && yDirection == -1) ||
+        (rect.bottom >= gameRef.size.y && yDirection == 1)) {
+      yDirection = yDirection * -1;
+    }
+  }
+}
+
+class DebugGame extends BaseGame {
+  static final fpsTextConfig = TextConfig(color: const Color(0xFFFFFFFF));
+
+  @override
+  bool debugMode = true;
+
+  @override
+  Future<void> onLoad() async {
+    final flameLogo = await loadSprite('flame.png');
+
+    final flame1 = LogoCompomnent(flameLogo);
+    flame1.x = 100;
+    flame1.y = 400;
+
+    final flame2 = LogoCompomnent(flameLogo);
+    flame2.x = 100;
+    flame2.y = 400;
+    flame2.yDirection = -1;
+
+    final flame3 = LogoCompomnent(flameLogo);
+    flame3.x = 100;
+    flame3.y = 400;
+    flame3.xDirection = -1;
+
+    add(flame1);
+    add(flame2);
+    add(flame3);
+  }
+
+  @override
+  void render(Canvas canvas) {
+    super.render(canvas);
+
+    if (debugMode) {
+      fpsTextConfig.render(canvas, fps(120).toString(), Vector2(0, 50));
+    }
+  }
+}