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Adding new API for gesture detection on Game class

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This commit is contained in:
Erick Zanardo
2019-10-23 20:38:17 -03:00
committed by Erick (CptBlackPixel)
parent 8852e7a07a
commit 4dcb32b107
2 changed files with 20 additions and 27 deletions
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45
lib/game.dart
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@ -12,7 +12,6 @@ import 'package:ordered_set/ordered_set.dart';
import 'components/component.dart'; import 'components/component.dart';
import 'components/mixins/has_game_ref.dart'; import 'components/mixins/has_game_ref.dart';
import 'components/mixins/tapable.dart'; import 'components/mixins/tapable.dart';
import 'flame.dart';
import 'position.dart'; import 'position.dart';
/// Represents a generic game. /// Represents a generic game.
@ -20,23 +19,12 @@ import 'position.dart';
/// Subclass this to implement the [update] and [render] methods. /// Subclass this to implement the [update] and [render] methods.
/// Flame will deal with calling these methods properly when the game's widget is rendered. /// Flame will deal with calling these methods properly when the game's widget is rendered.
abstract class Game { abstract class Game {
TapGestureRecognizer _createTapGestureRecognizer() => TapGestureRecognizer()
..onTapUp = (TapUpDetails details) {
onTapUp(details);
}
..onTapDown = (TapDownDetails details) {
onTapDown(details);
}
..onTapCancel = () {
onTapCancel();
};
void onTap() {}
void onTapCancel() {} void onTapCancel() {}
void onTapDown(TapDownDetails details) {} void onTapDown(TapDownDetails details) {}
void onTapUp(TapUpDetails details) {} void onTapUp(TapUpDetails details) {}
TapGestureRecognizer _gestureRecognizer;
// Widget Builder for this Game // Widget Builder for this Game
final builder = WidgetBuilder(); final builder = WidgetBuilder();
@ -67,26 +55,29 @@ abstract class Game {
Widget get widget => builder.build(this); Widget get widget => builder.build(this);
// Called when the Game widget is attached // Called when the Game widget is attached
void onAttach() { void onAttach() { }
if (_gestureRecognizer != null) {
Flame.util.removeGestureRecognizer(_gestureRecognizer);
}
_gestureRecognizer = _createTapGestureRecognizer();
Flame.util.addGestureRecognizer(_gestureRecognizer);
}
// Called when the Game widget is detached // Called when the Game widget is detached
void onDetach() { void onDetach() { }
if (_gestureRecognizer != null) {
Flame.util.removeGestureRecognizer(_gestureRecognizer);
}
}
} }
class WidgetBuilder { class WidgetBuilder {
Offset offset = Offset.zero; Offset offset = Offset.zero;
Widget build(Game game) => Directionality(
textDirection: TextDirection.ltr, child: EmbeddedGameWidget(game)); Widget build(Game game) {
return GestureDetector(
onTap: () => game.onTap(),
onTapCancel: () => game.onTapCancel(),
onTapDown: (TapDownDetails d) => game.onTapDown(d),
onTapUp: (TapUpDetails d) => game.onTapUp(d),
child: Container(
color: const Color(0xFF000000),
child: Directionality(
textDirection: TextDirection.ltr, child: EmbeddedGameWidget(game)
)
),
);
}
} }
/// This is a more complete and opinionated implementation of Game. /// This is a more complete and opinionated implementation of Game.

2
lib/util.dart
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@ -113,6 +113,8 @@ class Util {
/// This properly binds a gesture recognizer to your game. /// This properly binds a gesture recognizer to your game.
/// ///
/// Use this in order to get it to work in case your app also contains other widgets. /// Use this in order to get it to work in case your app also contains other widgets.
///
/// @Deprecated('This method can lead to confuse behaviour, use the gestures methods provided by the Game class')
void addGestureRecognizer(GestureRecognizer recognizer) { void addGestureRecognizer(GestureRecognizer recognizer) {
if (GestureBinding.instance == null) { if (GestureBinding.instance == null) {
throw Exception( throw Exception(