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hover_callbacks_example.dart
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hover_callbacks_example.dart
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import 'package:flame/components.dart';
import 'package:flame/events.dart';
import 'package:flame/extensions.dart';
import 'package:flame/game.dart';
import 'package:flutter/material.dart';
class HoverCallbacksExample extends FlameGame with TapCallbacks {
static const String description = '''
This example shows how to use `HoverCallbacks`s.\n\n
Add more squares by clicking and hover them to change their color.
''';
@override
Future<void> onLoad() async {
add(HoverSquare(Vector2(200, 500)));
add(HoverSquare(Vector2(700, 300)));
}
@override
void onTapDown(TapDownEvent event) {
add(HoverSquare(event.localPosition));
}
}
class HoverSquare extends PositionComponent with HoverCallbacks {
static final Paint _white = Paint()..color = const Color(0xFFFFFFFF);
static final Paint _grey = Paint()..color = const Color(0xFFA5A5A5);
HoverSquare(Vector2 position)
: super(
position: position,
size: Vector2.all(100),
anchor: Anchor.center,
);
@override
void render(Canvas canvas) {
canvas.drawRect(size.toRect(), isHovered ? _grey : _white);
}
}