Add @mustCallSuper to component.render (#1011)

* Add @mustCallSuper to component.render

* fixing lint

* lint

* fixing

examples/lib/stories/utils/particles.dart

@@ -561,6 +561,7 @@ class TrafficLightComponent extends Component {
 
   @override
   void render(Canvas c) {
+    super.render(c);
     c.drawRect(rect, Paint()..color = currentColor);
   }
 

examples/lib/stories/utils/timer_component.dart

@@ -14,6 +14,7 @@ class RenderedTimeComponent extends TimerComponent {
 
   @override
   void render(Canvas canvas) {
+    super.render(canvas);
     textPaint.render(
       canvas,
       'Elapsed time: ${timer.current}',

packages/flame/CHANGELOG.md

@@ -4,6 +4,7 @@
  - `changePriority` no longer breaks game loop iteration
  - Move component mixin checks to their own files
  - Fix exception when game was rebuilt
+ - Add `@mustCallSuper` on `Component.render`
 
 ## [1.0.0-releasecandidate.15]
  - Fix issue with `Draggable`s not being removed from `draggables` list

packages/flame/lib/src/components/component.dart

@@ -131,6 +131,7 @@ class Component with Loadable {
     children.forEach((c) => c.update(dt));
   }
 
+  @mustCallSuper
   void render(Canvas canvas) {
     preRender(canvas);
   }

packages/flame/lib/src/game/flame_game.dart

@@ -64,6 +64,7 @@ class FlameGame extends Component with Game {
   @override
   @mustCallSuper
   void render(Canvas canvas) {
+    super.render(canvas);
     _cameraWrapper.render(canvas);
   }
 

packages/flame/lib/src/timer.dart

@@ -78,9 +78,6 @@ class TimerComponent extends Component {
     timer.update(dt);
   }
 
-  @override
-  void render(Canvas canvas) {}
-
   @override
   bool get shouldRemove => timer.finished;
 }

packages/flame_bloc/example/lib/src/game/components/enemy_creator.dart

@@ -1,5 +1,4 @@
 import 'dart:math';
-import 'dart:ui';
 
 import 'package:flame/components.dart';
 import 'package:flame/timer.dart';
@@ -29,7 +28,4 @@ class EnemyCreator extends Component with HasGameRef<SpaceShooterGame> {
     super.update(dt);
     enemyCreator.update(dt);
   }
-
-  @override
-  void render(Canvas canvas) {}
 }

packages/flame_tiled/lib/src/tiled_component.dart

@@ -15,6 +15,7 @@ class TiledComponent extends Component {
 
   @override
   void render(Canvas canvas) {
+    super.render(canvas);
     tileMap.render(canvas);
   }