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feat: Allow sequence effect to be extended (#2864)

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With previous implementation of the `SequenceEffect` didn't allowed
developers to extend it and create custom sequence effects. This PR
slightly refactors the class so it can now be extended.
This commit is contained in:
Erick
2023-11-23 12:00:00 -03:00
committed by GitHub
parent 082743d3ba
commit ee11aae9f5
1 changed files with 36 additions and 24 deletions
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60
packages/flame/lib/src/effects/sequence_effect.dart
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@ -3,6 +3,25 @@ import 'package:flame/src/effects/controllers/infinite_effect_controller.dart';
import 'package:flame/src/effects/controllers/repeated_effect_controller.dart';
import 'package:flame/src/effects/effect.dart';
EffectController _createController({
required List<Effect> effects,
required bool alternate,
required bool infinite,
required int repeatCount,
}) {
EffectController ec = _SequenceEffectEffectController(
effects,
alternate: alternate,
);
if (infinite) {
ec = InfiniteEffectController(ec);
} else if (repeatCount > 1) {
ec = RepeatedEffectController(ec, repeatCount);
}
effects.forEach((e) => e.removeOnFinish = false);
return ec;
}
/// Run multiple effects in a sequence, one after another.
///
/// The provided effects will be added as child components; however the custom
@ -27,35 +46,28 @@ import 'package:flame/src/effects/effect.dart';
/// effect depends on the timings of individual effects, and cannot be
/// represented as a regular effect controller.
class SequenceEffect extends Effect {
factory SequenceEffect(
SequenceEffect(
List<Effect> effects, {
bool alternate = false,
bool infinite = false,
int repeatCount = 1,
void Function()? onComplete,
}) {
assert(effects.isNotEmpty, 'The list of effects cannot be empty');
assert(
!(infinite && repeatCount != 1),
'Parameters infinite and repeatCount cannot be specified simultaneously',
);
EffectController ec = _SequenceEffectEffectController(
effects,
alternate: alternate,
);
if (infinite) {
ec = InfiniteEffectController(ec);
} else if (repeatCount > 1) {
ec = RepeatedEffectController(ec, repeatCount);
}
effects.forEach((e) => e.removeOnFinish = false);
return SequenceEffect._(ec, onComplete: onComplete)..addAll(effects);
}
SequenceEffect._(
super.ec, {
super.onComplete,
});
}) : assert(effects.isNotEmpty, 'The list of effects cannot be empty'),
assert(
!(infinite && repeatCount != 1),
'Parameters infinite and repeatCount cannot be specified '
'simultaneously',
),
super(
_createController(
effects: effects,
alternate: alternate,
infinite: infinite,
repeatCount: repeatCount,
),
) {
addAll(effects);
}
@override
void apply(double progress) {}