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103 lines
2.9 KiB
103 lines
2.9 KiB
import 'package:flame/components.dart';
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import 'package:flame_forge2d/flame_forge2d.dart';
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import 'package:flutter/material.dart';
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import 'package:pinball_components/pinball_components.dart';
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/// Represents the [Signpost]'s current [Sprite] state.
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@visibleForTesting
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enum SignpostSpriteState {
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/// Signpost with no active dashes.
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inactive,
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/// Signpost with a single sign of active dashes.
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active1,
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/// Signpost with two signs of active dashes.
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active2,
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/// Signpost with all signs of active dashes.
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active3,
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}
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extension on SignpostSpriteState {
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String get path {
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switch (this) {
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case SignpostSpriteState.inactive:
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return Assets.images.signpost.inactive.keyName;
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case SignpostSpriteState.active1:
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return Assets.images.signpost.active1.keyName;
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case SignpostSpriteState.active2:
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return Assets.images.signpost.active2.keyName;
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case SignpostSpriteState.active3:
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return Assets.images.signpost.active3.keyName;
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}
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}
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SignpostSpriteState get next {
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return SignpostSpriteState
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.values[(index + 1) % SignpostSpriteState.values.length];
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}
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}
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/// {@template signpost}
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/// A sign, found in the Flutter Forest.
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///
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/// Lights up a new sign whenever all three [DashNestBumper]s are hit.
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/// {@endtemplate}
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class Signpost extends BodyComponent with InitialPosition {
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/// {@macro signpost}
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Signpost()
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: super(
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priority: RenderPriority.signpost,
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children: [_SignpostSpriteComponent()],
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) {
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renderBody = false;
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}
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/// Forwards the sprite to the next [SignpostSpriteState].
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///
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/// If the current state is the last one it cycles back to the initial state.
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void progress() => firstChild<_SignpostSpriteComponent>()!.progress();
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@override
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Body createBody() {
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final shape = CircleShape()..radius = 0.25;
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final fixtureDef = FixtureDef(shape);
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final bodyDef = BodyDef(
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position: initialPosition,
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);
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return world.createBody(bodyDef)..createFixture(fixtureDef);
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}
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}
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class _SignpostSpriteComponent extends SpriteGroupComponent<SignpostSpriteState>
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with HasGameRef {
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_SignpostSpriteComponent()
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: super(
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anchor: Anchor.bottomCenter,
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position: Vector2(0.65, 0.45),
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);
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void progress() => current = current?.next;
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@override
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Future<void> onLoad() async {
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await super.onLoad();
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final sprites = <SignpostSpriteState, Sprite>{};
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this.sprites = sprites;
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for (final spriteState in SignpostSpriteState.values) {
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// TODO(allisonryan0002): Support caching
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// https://github.com/VGVentures/pinball/pull/204
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// sprites[spriteState] = Sprite(
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// gameRef.images.fromCache(spriteState.path),
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// );
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sprites[spriteState] = await gameRef.loadSprite(spriteState.path);
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}
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current = SignpostSpriteState.inactive;
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size = sprites[current]!.originalSize / 10;
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}
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}
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