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97 lines
2.5 KiB
97 lines
2.5 KiB
import 'dart:math' as math;
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import 'package:flame/components.dart';
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import 'package:flame/extensions.dart';
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import 'package:flame_forge2d/flame_forge2d.dart';
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import 'package:pinball/game/game.dart';
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import 'package:pinball_components/pinball_components.dart';
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/// {@template launcher_ramp}
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/// The yellow left ramp, where the [Ball] goes through when launched from the
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/// [Plunger].
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/// {@endtemplate}
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class LauncherRamp extends Component with HasGameRef<PinballGame> {
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/// {@macro launcher_ramp}
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LauncherRamp({
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required this.position,
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});
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/// The position of this [LauncherRamp].
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final Vector2 position;
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@override
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Future<void> onLoad() async {
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const layer = Layer.launcher;
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gameRef.addContactCallback(
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RampOpeningBallContactCallback<_LauncherRampOpening>(),
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);
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final launcherRampRotation =
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-math.atan(18.6 / PinballGame.boardBounds.height);
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final straightPath = Pathway.straight(
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color: const Color.fromARGB(255, 34, 255, 0),
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start: position + Vector2(-1.2, 10),
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end: position + Vector2(-1.2, 117),
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width: 5,
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rotation: launcherRampRotation,
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)
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..initialPosition = position
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..layer = layer;
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final curvedPath = Pathway.arc(
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color: const Color.fromARGB(255, 251, 255, 0),
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center: position + Vector2(-2.8, 87.2),
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radius: 16.3,
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angle: math.pi / 2,
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width: 5,
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rotation: 3 * math.pi / 2,
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)..layer = layer;
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final leftOpening = _LauncherRampOpening(rotation: math.pi / 2)
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..initialPosition = position + Vector2(-11.8, 66.3)
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..layer = Layer.opening;
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final rightOpening = _LauncherRampOpening(rotation: 0)
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..initialPosition = position + Vector2(-4.9, 59.4)
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..layer = Layer.opening;
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await addAll([
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straightPath,
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curvedPath,
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leftOpening,
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rightOpening,
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]);
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}
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}
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/// {@template launcher_ramp_opening}
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/// [RampOpening] with [Layer.launcher] to filter [Ball]s collisions
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/// inside [LauncherRamp].
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/// {@endtemplate}
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class _LauncherRampOpening extends RampOpening {
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/// {@macro launcher_ramp_opening}
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_LauncherRampOpening({
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required double rotation,
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}) : _rotation = rotation,
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super(
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pathwayLayer: Layer.launcher,
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orientation: RampOrientation.down,
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);
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final double _rotation;
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// TODO(ruialonso): Avoid magic number 3, should be propotional to
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// [JetpackRamp].
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static final Vector2 _size = Vector2(3, .1);
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@override
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Shape get shape => PolygonShape()
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..setAsBox(
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_size.x,
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_size.y,
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initialPosition,
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_rotation,
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);
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}
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