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@ -1,31 +1,33 @@
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import 'dart:async';
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import 'dart:math' as math;
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import 'package:flame/components.dart';
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import 'package:flame_forge2d/flame_forge2d.dart' hide Timer;
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import 'package:flutter/material.dart';
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import 'package:pinball_components/pinball_components.dart';
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/// {@template chrome_dino}
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/// Dinosaur that gobbles up a [Ball], swivel his head around, and shoots it
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/// back out.
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/// Dino that swivels back and forth, opening its mouth to eat a [Ball].
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///
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/// Upon eating a [Ball], the dino rotates and spits the [Ball] out in a
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/// different direction.
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/// {@endtemplate}
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class ChromeDino extends BodyComponent with InitialPosition {
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/// {@macro chrome_dino}
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ChromeDino()
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: super(
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// TODO(alestiago): Remove once sprites are defined.
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paint: Paint()..color = Colors.blue,
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priority: RenderPriority.dino,
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renderBody: false,
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);
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/// The size of the dinosaur mouth.
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static final size = Vector2(5, 2.5);
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static final size = Vector2(5.5, 5);
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/// Anchors the [ChromeDino] to the [RevoluteJoint] that controls its arc
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/// motion.
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Future<_ChromeDinoJoint> _anchorToJoint() async {
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final anchor = _ChromeDinoAnchor();
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// TODO(allisonryan0002): try moving to anchor after new body is defined.
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final anchor = _ChromeDinoAnchor()
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..initialPosition = initialPosition + Vector2(9, -4);
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await add(anchor);
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final jointDef = _ChromeDinoAnchorRevoluteJointDef(
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@ -42,9 +44,11 @@ class ChromeDino extends BodyComponent with InitialPosition {
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Future<void> onLoad() async {
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await super.onLoad();
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final joint = await _anchorToJoint();
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const framesInAnimation = 98;
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const animationFPS = 1 / 24;
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await add(
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TimerComponent(
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period: 1,
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period: (framesInAnimation / 2) * animationFPS,
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onTick: joint._swivel,
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repeat: true,
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),
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@ -54,44 +58,17 @@ class ChromeDino extends BodyComponent with InitialPosition {
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List<FixtureDef> _createFixtureDefs() {
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final fixtureDefs = <FixtureDef>[];
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// TODO(alestiago): Subject to change when sprites are added.
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final box = PolygonShape()..setAsBoxXY(size.x / 2, size.y / 2);
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final fixtureDef = FixtureDef(
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box,
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density: 999,
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friction: 0.3,
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restitution: 0.1,
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isSensor: true,
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);
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// TODO(allisonryan0002): Update this shape to better match sprite.
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final box = PolygonShape()
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..setAsBox(
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size.x / 2,
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size.y / 2,
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initialPosition + Vector2(-4, 2),
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-_ChromeDinoJoint._halfSweepingAngle,
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);
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final fixtureDef = FixtureDef(box, density: 1);
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fixtureDefs.add(fixtureDef);
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// FIXME(alestiago): Investigate why adding these fixtures is considered as
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// an invalid contact type.
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// final upperEdge = EdgeShape()
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// ..set(
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// Vector2(-size.x / 2, -size.y / 2),
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// Vector2(size.x / 2, -size.y / 2),
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// );
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// final upperEdgeDef = FixtureDef(upperEdge)..density = 0.5;
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// fixtureDefs.add(upperEdgeDef);
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// final lowerEdge = EdgeShape()
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// ..set(
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// Vector2(-size.x / 2, size.y / 2),
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// Vector2(size.x / 2, size.y / 2),
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// );
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// final lowerEdgeDef = FixtureDef(lowerEdge)..density = 0.5;
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// fixtureDefs.add(lowerEdgeDef);
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// final rightEdge = EdgeShape()
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// ..set(
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// Vector2(size.x / 2, -size.y / 2),
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// Vector2(size.x / 2, size.y / 2),
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// );
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// final rightEdgeDef = FixtureDef(rightEdge)..density = 0.5;
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// fixtureDefs.add(rightEdgeDef);
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return fixtureDefs;
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}
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@ -110,13 +87,18 @@ class ChromeDino extends BodyComponent with InitialPosition {
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}
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}
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/// {@template flipper_anchor}
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/// [JointAnchor] positioned at the end of a [ChromeDino].
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/// {@endtemplate}
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class _ChromeDinoAnchor extends JointAnchor {
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/// {@macro flipper_anchor}
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_ChromeDinoAnchor() {
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initialPosition = Vector2(ChromeDino.size.x / 2, 0);
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_ChromeDinoAnchor();
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// TODO(allisonryan0002): if these aren't moved when fixing the rendering, see
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// if the joint can be created in onMount to resolve render syncing.
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@override
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Future<void> onLoad() async {
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await super.onLoad();
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await addAll([
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_ChromeDinoMouthSprite(),
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_ChromeDinoHeadSprite(),
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]);
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}
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}
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@ -135,22 +117,86 @@ class _ChromeDinoAnchorRevoluteJointDef extends RevoluteJointDef {
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chromeDino.body.position + anchor.body.position,
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);
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enableLimit = true;
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// TODO(alestiago): Apply design angle value.
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const angle = math.pi / 3.5;
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lowerAngle = -angle / 2;
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upperAngle = angle / 2;
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lowerAngle = -_ChromeDinoJoint._halfSweepingAngle;
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upperAngle = _ChromeDinoJoint._halfSweepingAngle;
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enableMotor = true;
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// TODO(alestiago): Tune this values.
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maxMotorTorque = motorSpeed = chromeDino.body.mass * 30;
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maxMotorTorque = chromeDino.body.mass * 255;
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motorSpeed = 2;
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}
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}
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class _ChromeDinoJoint extends RevoluteJoint {
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_ChromeDinoJoint(_ChromeDinoAnchorRevoluteJointDef def) : super(def);
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static const _halfSweepingAngle = 0.1143;
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/// Sweeps the [ChromeDino] up and down repeatedly.
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void _swivel() {
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setMotorSpeed(-motorSpeed);
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}
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}
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class _ChromeDinoMouthSprite extends SpriteAnimationComponent with HasGameRef {
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_ChromeDinoMouthSprite()
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: super(
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anchor: Anchor(Anchor.center.x + 0.47, Anchor.center.y - 0.29),
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angle: _ChromeDinoJoint._halfSweepingAngle,
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);
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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 image = gameRef.images.fromCache(
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Assets.images.dino.animatronic.mouth.keyName,
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);
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const amountPerRow = 11;
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const amountPerColumn = 9;
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final textureSize = Vector2(
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image.width / amountPerRow,
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image.height / amountPerColumn,
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);
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size = textureSize / 10;
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final data = SpriteAnimationData.sequenced(
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amount: (amountPerColumn * amountPerRow) - 1,
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amountPerRow: amountPerRow,
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stepTime: 1 / 24,
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textureSize: textureSize,
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);
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animation = SpriteAnimation.fromFrameData(image, data)..currentIndex = 45;
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}
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}
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class _ChromeDinoHeadSprite extends SpriteAnimationComponent with HasGameRef {
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_ChromeDinoHeadSprite()
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: super(
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anchor: Anchor(Anchor.center.x + 0.47, Anchor.center.y - 0.29),
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angle: _ChromeDinoJoint._halfSweepingAngle,
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);
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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 image = gameRef.images.fromCache(
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Assets.images.dino.animatronic.head.keyName,
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);
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const amountPerRow = 11;
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const amountPerColumn = 9;
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final textureSize = Vector2(
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image.width / amountPerRow,
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image.height / amountPerColumn,
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);
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size = textureSize / 10;
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final data = SpriteAnimationData.sequenced(
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amount: (amountPerColumn * amountPerRow) - 1,
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amountPerRow: amountPerRow,
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stepTime: 1 / 24,
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textureSize: textureSize,
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);
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animation = SpriteAnimation.fromFrameData(image, data)..currentIndex = 45;
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}
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}
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Allison Ryan
3 years ago
committed by
GitHub
