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docs: Use built-in camera in example #3458

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Jan 26, 2025
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docs: Use built-in camera in example #3458

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16 changes: 8 additions & 8 deletions examples/lib/stories/camera_and_viewport/camera_component_example.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@ import 'package:flame/geometry.dart';
import 'package:flame/input.dart';
import 'package:flutter/painting.dart';

class CameraComponentExample extends FlameGame with PanDetector {
class CameraComponentExample extends FlameGame<AntWorld> with PanDetector {
static const description = '''
This example shows how a camera can be dynamically added into a game using
a CameraComponent.
Expand All @@ -18,6 +18,8 @@ class CameraComponentExample extends FlameGame with PanDetector {
look at the world underneath!
''';

CameraComponentExample() : super(world: AntWorld());

late final CameraComponent magnifyingGlass;
late final Vector2 center;
static const zoom = 10.0;
Expand All @@ -28,13 +30,11 @@ class CameraComponentExample extends FlameGame with PanDetector {

@override
Future<void> onLoad() async {
final world = AntWorld();
await add(world);
final camera = CameraComponent(world: world);
await add(camera);
final offset = world.curve.boundingRect().center;
center = offset.toVector2();
camera.viewfinder.position = Vector2(center.x, center.y);
world.loaded.then((_) {
final offset = world.curve.boundingRect().center;
center = offset.toVector2();
camera.viewfinder.position = Vector2(center.x, center.y);
});

magnifyingGlass =
CameraComponent(world: world, viewport: CircularViewport(radius));
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