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// ignore_for_file: public_member_api_docs, avoid_renaming_method_parameters
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import 'dart:math' as math;
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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:flutter/material.dart';
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import 'package:pinball/flame/blueprint.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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/// A [Blueprint] which creates the [LauncherRamp].
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class Launcher extends Forge2DBlueprint {
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@override
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void build(_) {
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final position = Vector2(
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PinballGame.boardBounds.right - 31.3,
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PinballGame.boardBounds.bottom + 33,
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);
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addAllContactCallback([
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RampOpeningBallContactCallback<_LauncherRampOpening>(),
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]);
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final leftOpening = _LauncherRampOpening(rotation: math.pi / 2)
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..initialPosition = position + Vector2(-11.8, 72.7)
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..layer = Layer.opening;
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final rightOpening = _LauncherRampOpening(rotation: 0)
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..initialPosition = position + Vector2(-5.4, 65.4)
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..layer = Layer.opening;
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final launcherRamp = LauncherRamp()
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..initialPosition = position + Vector2(1.7, 0)
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..layer = Layer.launcher;
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addAll([
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leftOpening,
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rightOpening,
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launcherRamp,
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]);
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}
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}
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/// {@template launcher_ramp}
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/// The yellow right 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 BodyComponent with InitialPosition, Layered {
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/// {@macro launcher_ramp}
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LauncherRamp() : super(priority: 2) {
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layer = Layer.launcher;
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paint = Paint()
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..color = const Color.fromARGB(255, 251, 255, 0)
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..style = PaintingStyle.stroke;
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}
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/// Width between walls of the ramp.
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static const width = 5.0;
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/// Radius of the external arc at the top of the ramp.
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static const _externalRadius = 16.3;
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List<FixtureDef> _createFixtureDefs() {
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final fixturesDef = <FixtureDef>[];
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final startPosition = initialPosition + Vector2(0, 3);
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final endPosition = initialPosition + Vector2(0, 130);
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final rightStraightShape = EdgeShape()
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..set(
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startPosition..rotate(PinballGame.boardPerspectiveAngle),
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endPosition..rotate(PinballGame.boardPerspectiveAngle),
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);
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final rightStraightFixtureDef = FixtureDef(rightStraightShape);
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fixturesDef.add(rightStraightFixtureDef);
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final leftStraightShape = EdgeShape()
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..set(
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startPosition - Vector2(width, 0),
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endPosition - Vector2(width, 0),
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);
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final leftStraightFixtureDef = FixtureDef(leftStraightShape);
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fixturesDef.add(leftStraightFixtureDef);
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final externalCurveShape = ArcShape(
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center: initialPosition + Vector2(-28.2, 132),
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arcRadius: _externalRadius,
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angle: math.pi / 2,
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rotation: 3 * math.pi / 2,
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);
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final externalCurveFixtureDef = FixtureDef(externalCurveShape);
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fixturesDef.add(externalCurveFixtureDef);
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final internalCurveShape = externalCurveShape.copyWith(
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arcRadius: _externalRadius - width,
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);
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final internalCurveFixtureDef = FixtureDef(internalCurveShape);
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fixturesDef.add(internalCurveFixtureDef);
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return fixturesDef;
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}
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@override
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Body createBody() {
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final bodyDef = BodyDef()
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..userData = this
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..position = initialPosition;
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final body = world.createBody(bodyDef);
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_createFixtureDefs().forEach(body.createFixture);
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return body;
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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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static final Vector2 _size = Vector2(LauncherRamp.width / 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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