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Splits up demo game into multiple files for better readability
This commit is contained in:
Viktor Lidholt
parent
e2af762e76
commit
1bb647e67f
71
examples/game/lib/explosions.dart
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71
examples/game/lib/explosions.dart
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@ -0,0 +1,71 @@
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part of game;
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class Explosion extends Node {
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Explosion(SpriteSheet sheet) {
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// Add particles
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ParticleSystem particlesDebris = new ParticleSystem(
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sheet["explosion_particle.png"],
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rotateToMovement: true,
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startRotation:90.0,
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startRotationVar: 0.0,
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endRotation: 90.0,
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startSize: 0.3,
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startSizeVar: 0.1,
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endSize: 0.3,
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endSizeVar: 0.1,
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numParticlesToEmit: 25,
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emissionRate:1000.0,
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greenVar: 127,
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redVar: 127
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);
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particlesDebris.zPosition = 1010.0;
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addChild(particlesDebris);
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ParticleSystem particlesFire = new ParticleSystem(
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sheet["fire_particle.png"],
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colorSequence: new ColorSequence([new Color(0xffffff33), new Color(0xffff3333), new Color(0x00ff3333)], [0.0, 0.5, 1.0]),
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numParticlesToEmit: 25,
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emissionRate: 1000.0,
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startSize: 0.5,
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startSizeVar: 0.1,
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endSize: 0.5,
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endSizeVar: 0.1,
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posVar: new Point(10.0, 10.0),
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speed: 10.0,
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speedVar: 5.0
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);
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particlesFire.zPosition = 1011.0;
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addChild(particlesFire);
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// Add ring
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Sprite sprtRing = new Sprite(sheet["explosion_ring.png"]);
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sprtRing.transferMode = sky.TransferMode.plus;
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addChild(sprtRing);
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Action scale = new ActionTween( (a) => sprtRing.scale = a, 0.2, 1.0, 1.5);
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Action scaleAndRemove = new ActionSequence([scale, new ActionRemoveNode(sprtRing)]);
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Action fade = new ActionTween( (a) => sprtRing.opacity = a, 1.0, 0.0, 1.5);
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actions.run(scaleAndRemove);
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actions.run(fade);
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// Add streaks
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for (int i = 0; i < 5; i++) {
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Sprite sprtFlare = new Sprite(sheet["explosion_flare.png"]);
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sprtFlare.pivot = new Point(0.3, 1.0);
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sprtFlare.scaleX = 0.3;
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sprtFlare.transferMode = sky.TransferMode.plus;
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sprtFlare.rotation = randomDouble() * 360.0;
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addChild(sprtFlare);
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double multiplier = randomDouble() * 0.3 + 1.0;
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Action scale = new ActionTween( (a) => sprtFlare.scaleY = a, 0.3 * multiplier, 0.8, 1.5 * multiplier);
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Action scaleAndRemove = new ActionSequence([scale, new ActionRemoveNode(sprtFlare)]);
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Action fadeIn = new ActionTween( (a) => sprtFlare.opacity = a, 0.0, 1.0, 0.5 * multiplier);
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Action fadeOut = new ActionTween( (a) => sprtFlare.opacity = a, 1.0, 0.0, 1.0 * multiplier);
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Action fadeInOut = new ActionSequence([fadeIn, fadeOut]);
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actions.run(scaleAndRemove);
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actions.run(fadeInOut);
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}
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}
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}
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23
examples/game/lib/flash.dart
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23
examples/game/lib/flash.dart
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@ -0,0 +1,23 @@
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part of game;
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class Flash extends NodeWithSize {
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Flash(Size size, this.duration) : super(size) {
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ActionTween fade = new ActionTween((a) => _opacity = a, 1.0, 0.0, duration);
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ActionSequence seq = new ActionSequence([fade, new ActionRemoveNode(this)]);
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actions.run(seq);
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}
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double duration;
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double _opacity = 1.0;
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Paint _cachedPaint = new Paint();
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void paint(PaintingCanvas canvas) {
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// Update the color
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_cachedPaint.color = new Color.fromARGB((255.0 * _opacity).toInt(),
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255, 255, 255);
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// Fill the area
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applyTransformForPivot(canvas);
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canvas.drawRect(new Rect.fromLTRB(0.0, 0.0, size.width, size.height),
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_cachedPaint);
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}
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}
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@ -8,4 +8,9 @@ import 'package:sky/rendering/object.dart';
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import 'package:sky/widgets/framework.dart';
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import 'package:skysprites/skysprites.dart';
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part 'explosions.dart';
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part 'flash.dart';
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part 'game_demo_node.dart';
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part 'game_objects.dart';
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part 'repeated_image.dart';
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part 'star_field.dart';
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@ -252,238 +252,6 @@ class Level extends Node {
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}
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}
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abstract class GameObject extends Node {
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double radius = 0.0;
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double removeLimit = 1280.0;
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bool canDamageShip = true;
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bool canBeDamaged = true;
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double maxDamage = 3.0;
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double damage = 0.0;
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Paint _paintDebug = new Paint()
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..color=new Color(0xffff0000)
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..strokeWidth = 1.0
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..setStyle(sky.PaintingStyle.stroke);
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bool collidingWith(GameObject obj) {
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return (GameMath.pointQuickDist(position, obj.position)
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< radius + obj.radius);
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}
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void move() {
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}
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void removeIfOffscreen(double scroll) {
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;
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if (-position.y > scroll + removeLimit ||
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-position.y < scroll - 50.0) {
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removeFromParent();
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}
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}
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void destroy() {
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if (parent != null) {
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Explosion explo = createExplosion();
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if (explo != null) {
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explo.position = position;
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parent.addChild(explo);
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}
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removeFromParent();
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}
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}
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int addDamage(double d) {
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if (!canBeDamaged) return 0;
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damage += d;
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if (damage >= maxDamage) {
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destroy();
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return (maxDamage * 10).ceil();
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}
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return 10;
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}
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Explosion createExplosion() {
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return null;
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}
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void paint(PaintingCanvas canvas) {
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if (_drawDebug) {
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canvas.drawCircle(Point.origin, radius, _paintDebug);
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}
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super.paint(canvas);
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}
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void setupActions() {
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}
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}
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class Ship extends GameObject {
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Ship(GameObjectFactory f) {
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// Add main ship sprite
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_sprt = new Sprite(f.sheet["ship.png"]);
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_sprt.scale = 0.3;
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_sprt.rotation = -90.0;
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addChild(_sprt);
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radius = 20.0;
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canBeDamaged = false;
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canDamageShip = false;
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// Set start position
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position = new Point(0.0, 50.0);
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}
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Sprite _sprt;
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void applyThrust(Point joystickValue, double scroll) {
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Point oldPos = position;
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Point target = new Point(joystickValue.x * 160.0, joystickValue.y * 220.0 - 250.0 - scroll);
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double filterFactor = 0.2;
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position = new Point(
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GameMath.filter(oldPos.x, target.x, filterFactor),
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GameMath.filter(oldPos.y, target.y, filterFactor));
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}
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}
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class Laser extends GameObject {
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double impact = 1.0;
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Laser(GameObjectFactory f) {
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// Add sprite
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_sprt = new Sprite(f.sheet["laser.png"]);
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_sprt.scale = 0.3;
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_sprt.transferMode = sky.TransferMode.plus;
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addChild(_sprt);
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radius = 10.0;
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removeLimit = 640.0;
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canDamageShip = false;
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canBeDamaged = false;
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}
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Sprite _sprt;
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void move() {
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position += new Offset(0.0, -10.0);
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}
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}
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abstract class Obstacle extends GameObject {
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Obstacle(this._f);
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double explosionScale = 1.0;
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GameObjectFactory _f;
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Explosion createExplosion() {
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SoundEffectPlayer.sharedInstance().play(_f.sounds["explosion"]);
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Explosion explo = new Explosion(_f.sheet);
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explo.scale = explosionScale;
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return explo;
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}
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}
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abstract class Asteroid extends Obstacle {
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Asteroid(GameObjectFactory f) : super(f);
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Sprite _sprt;
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void setupActions() {
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// Rotate obstacle
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int direction = 1;
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if (randomBool()) direction = -1;
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ActionTween rotate = new ActionTween(
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(a) => _sprt.rotation = a,
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0.0, 360.0 * direction, 5.0 + 5.0 * randomDouble());
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_sprt.actions.run(new ActionRepeatForever(rotate));
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}
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set damage(double d) {
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super.damage = d;
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int alpha = ((200.0 * d) ~/ maxDamage).clamp(0, 200);
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_sprt.colorOverlay = new Color.fromARGB(alpha, 255, 3, 86);
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}
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}
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class AsteroidBig extends Asteroid {
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AsteroidBig(GameObjectFactory f) : super(f) {
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_sprt = new Sprite(f.sheet["asteroid_big_${randomInt(3)}.png"]);
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_sprt.scale = 0.3;
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radius = 25.0;
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maxDamage = 5.0;
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addChild(_sprt);
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}
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}
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class AsteroidSmall extends Asteroid {
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AsteroidSmall(GameObjectFactory f) : super(f) {
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_sprt = new Sprite(f.sheet["asteroid_small_${randomInt(3)}.png"]);
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_sprt.scale = 0.3;
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radius = 12.0;
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maxDamage = 3.0;
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addChild(_sprt);
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}
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}
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class MovingEnemy extends Obstacle {
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MovingEnemy(GameObjectFactory f) : super(f) {
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_sprt = new Sprite(f.sheet["ship.png"]);
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_sprt.scale = 0.2;
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radius = 12.0;
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maxDamage = 2.0;
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addChild(_sprt);
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constraints = [new ConstraintRotationToMovement(dampening: 0.5)];
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}
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final double _swirlSpacing = 80.0;
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_addRandomSquare(List<Offset> offsets, double x, double y) {
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double xMove = (randomBool()) ? _swirlSpacing : -_swirlSpacing;
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double yMove = (randomBool()) ? _swirlSpacing : -_swirlSpacing;
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if (randomBool()) {
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offsets.addAll([
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new Offset(x, y),
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new Offset(xMove + x, y),
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new Offset(xMove + x, yMove + y),
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new Offset(x, yMove + y),
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new Offset(x, y)
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]);
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} else {
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offsets.addAll([
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new Offset(x, y),
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new Offset(x, y + yMove),
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new Offset(xMove + x, yMove + y),
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new Offset(xMove + x, y),
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new Offset(x, y)
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]);
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}
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}
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void setupActions() {
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List<Offset> offsets = [];
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_addRandomSquare(offsets, -_swirlSpacing, 0.0);
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_addRandomSquare(offsets, _swirlSpacing, 0.0);
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offsets.add(new Offset(-_swirlSpacing, 0.0));
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List<Point> points = [];
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for (Offset offset in offsets) {
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points.add(position + offset);
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}
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ActionSpline spline = new ActionSpline((a) => position = a, points, 6.0);
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spline.tension = 0.7;
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actions.run(new ActionRepeatForever(spline));
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}
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Sprite _sprt;
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}
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enum GameObjectType {
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asteroidBig,
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asteroidSmall,
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@ -530,192 +298,6 @@ class GameObjectFactory {
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}
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}
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class StarField extends NodeWithSize {
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sky.Image _image;
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SpriteSheet _spriteSheet;
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int _numStars;
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bool _autoScroll;
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List<Point> _starPositions;
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List<double> _starScales;
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List<Rect> _rects;
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List<Color> _colors;
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final double _padding = 50.0;
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Size _paddedSize = Size.zero;
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Paint _paint = new Paint()
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..setFilterQuality(sky.FilterQuality.low)
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..isAntiAlias = false
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..setTransferMode(sky.TransferMode.plus);
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StarField(this._spriteSheet, this._numStars, [this._autoScroll = false]) : super(Size.zero) {
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_image = _spriteSheet.image;
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}
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void addStars() {
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_starPositions = [];
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_starScales = [];
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_colors = [];
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_rects = [];
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size = spriteBox.visibleArea.size;
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_paddedSize = new Size(size.width + _padding * 2.0,
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size.height + _padding * 2.0);
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for (int i = 0; i < _numStars; i++) {
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_starPositions.add(new Point(randomDouble() * _paddedSize.width,
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randomDouble() * _paddedSize.height));
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_starScales.add(randomDouble() * 0.4);
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_colors.add(new Color.fromARGB((255.0 * (randomDouble() * 0.5 + 0.5)).toInt(), 255, 255, 255));
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_rects.add(_spriteSheet["star_${randomInt(2)}.png"].frame);
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}
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}
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void spriteBoxPerformedLayout() {
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addStars();
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}
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void paint(PaintingCanvas canvas) {
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// Create a transform for each star
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List<sky.RSTransform> transforms = [];
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for (int i = 0; i < _numStars; i++) {
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sky.RSTransform transform = new sky.RSTransform(
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_starScales[i],
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0.0,
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_starPositions[i].x - _padding,
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_starPositions[i].y - _padding);
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transforms.add(transform);
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}
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// Draw the stars
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canvas.drawAtlas(_image, transforms, _rects, _colors, sky.TransferMode.modulate, null, _paint);
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}
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void move(double dx, double dy) {
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for (int i = 0; i < _numStars; i++) {
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double xPos = _starPositions[i].x;
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double yPos = _starPositions[i].y;
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double scale = _starScales[i];
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xPos += dx * scale;
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yPos += dy * scale;
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if (xPos >= _paddedSize.width) xPos -= _paddedSize.width;
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if (xPos < 0) xPos += _paddedSize.width;
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if (yPos >= _paddedSize.height) yPos -= _paddedSize.height;
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if (yPos < 0) yPos += _paddedSize.height;
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_starPositions[i] = new Point(xPos, yPos);
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}
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}
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void update(double dt) {
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if (_autoScroll) {
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move(0.0, dt * 100.0);
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}
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}
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}
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class RepeatedImage extends Node {
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Sprite _sprt0;
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Sprite _sprt1;
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RepeatedImage(sky.Image image, [sky.TransferMode mode = null]) {
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_sprt0 = new Sprite.fromImage(image);
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_sprt0.size = new Size(1024.0, 1024.0);
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_sprt0.pivot = Point.origin;
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_sprt1 = new Sprite.fromImage(image);
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_sprt1.size = new Size(1024.0, 1024.0);
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_sprt1.pivot = Point.origin;
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_sprt1.position = new Point(0.0, -1024.0);
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if (mode != null) {
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_sprt0.transferMode = mode;
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_sprt1.transferMode = mode;
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}
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addChild(_sprt0);
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addChild(_sprt1);
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}
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void move(double dy) {
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double yPos = (position.y + dy) % 1024.0;
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position = new Point(0.0, yPos);
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}
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}
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class Explosion extends Node {
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Explosion(SpriteSheet sheet) {
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// Add particles
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ParticleSystem particlesDebris = new ParticleSystem(
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sheet["explosion_particle.png"],
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rotateToMovement: true,
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startRotation:90.0,
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startRotationVar: 0.0,
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endRotation: 90.0,
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startSize: 0.3,
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startSizeVar: 0.1,
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endSize: 0.3,
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endSizeVar: 0.1,
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numParticlesToEmit: 25,
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emissionRate:1000.0,
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greenVar: 127,
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redVar: 127
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);
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particlesDebris.zPosition = 1010.0;
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addChild(particlesDebris);
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ParticleSystem particlesFire = new ParticleSystem(
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sheet["fire_particle.png"],
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||||
colorSequence: new ColorSequence([new Color(0xffffff33), new Color(0xffff3333), new Color(0x00ff3333)], [0.0, 0.5, 1.0]),
|
||||
numParticlesToEmit: 25,
|
||||
emissionRate: 1000.0,
|
||||
startSize: 0.5,
|
||||
startSizeVar: 0.1,
|
||||
endSize: 0.5,
|
||||
endSizeVar: 0.1,
|
||||
posVar: new Point(10.0, 10.0),
|
||||
speed: 10.0,
|
||||
speedVar: 5.0
|
||||
);
|
||||
particlesFire.zPosition = 1011.0;
|
||||
addChild(particlesFire);
|
||||
|
||||
// Add ring
|
||||
Sprite sprtRing = new Sprite(sheet["explosion_ring.png"]);
|
||||
sprtRing.transferMode = sky.TransferMode.plus;
|
||||
addChild(sprtRing);
|
||||
|
||||
Action scale = new ActionTween( (a) => sprtRing.scale = a, 0.2, 1.0, 1.5);
|
||||
Action scaleAndRemove = new ActionSequence([scale, new ActionRemoveNode(sprtRing)]);
|
||||
Action fade = new ActionTween( (a) => sprtRing.opacity = a, 1.0, 0.0, 1.5);
|
||||
actions.run(scaleAndRemove);
|
||||
actions.run(fade);
|
||||
|
||||
// Add streaks
|
||||
for (int i = 0; i < 5; i++) {
|
||||
Sprite sprtFlare = new Sprite(sheet["explosion_flare.png"]);
|
||||
sprtFlare.pivot = new Point(0.3, 1.0);
|
||||
sprtFlare.scaleX = 0.3;
|
||||
sprtFlare.transferMode = sky.TransferMode.plus;
|
||||
sprtFlare.rotation = randomDouble() * 360.0;
|
||||
addChild(sprtFlare);
|
||||
|
||||
double multiplier = randomDouble() * 0.3 + 1.0;
|
||||
|
||||
Action scale = new ActionTween( (a) => sprtFlare.scaleY = a, 0.3 * multiplier, 0.8, 1.5 * multiplier);
|
||||
Action scaleAndRemove = new ActionSequence([scale, new ActionRemoveNode(sprtFlare)]);
|
||||
Action fadeIn = new ActionTween( (a) => sprtFlare.opacity = a, 0.0, 1.0, 0.5 * multiplier);
|
||||
Action fadeOut = new ActionTween( (a) => sprtFlare.opacity = a, 1.0, 0.0, 1.0 * multiplier);
|
||||
Action fadeInOut = new ActionSequence([fadeIn, fadeOut]);
|
||||
actions.run(scaleAndRemove);
|
||||
actions.run(fadeInOut);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class Hud extends Node {
|
||||
SpriteSheet sheet;
|
||||
Sprite sprtBgScore;
|
||||
@ -759,25 +341,3 @@ class Hud extends Node {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
class Flash extends NodeWithSize {
|
||||
Flash(Size size, this.duration) : super(size) {
|
||||
ActionTween fade = new ActionTween((a) => _opacity = a, 1.0, 0.0, duration);
|
||||
ActionSequence seq = new ActionSequence([fade, new ActionRemoveNode(this)]);
|
||||
actions.run(seq);
|
||||
}
|
||||
|
||||
double duration;
|
||||
double _opacity = 1.0;
|
||||
Paint _cachedPaint = new Paint();
|
||||
|
||||
void paint(PaintingCanvas canvas) {
|
||||
// Update the color
|
||||
_cachedPaint.color = new Color.fromARGB((255.0 * _opacity).toInt(),
|
||||
255, 255, 255);
|
||||
// Fill the area
|
||||
applyTransformForPivot(canvas);
|
||||
canvas.drawRect(new Rect.fromLTRB(0.0, 0.0, size.width, size.height),
|
||||
_cachedPaint);
|
||||
}
|
||||
}
|
||||
|
||||
233
examples/game/lib/game_objects.dart
Normal file
233
examples/game/lib/game_objects.dart
Normal file
@ -0,0 +1,233 @@
|
||||
part of game;
|
||||
|
||||
abstract class GameObject extends Node {
|
||||
double radius = 0.0;
|
||||
double removeLimit = 1280.0;
|
||||
bool canDamageShip = true;
|
||||
bool canBeDamaged = true;
|
||||
double maxDamage = 3.0;
|
||||
double damage = 0.0;
|
||||
|
||||
Paint _paintDebug = new Paint()
|
||||
..color=new Color(0xffff0000)
|
||||
..strokeWidth = 1.0
|
||||
..setStyle(sky.PaintingStyle.stroke);
|
||||
|
||||
bool collidingWith(GameObject obj) {
|
||||
return (GameMath.pointQuickDist(position, obj.position)
|
||||
< radius + obj.radius);
|
||||
}
|
||||
|
||||
void move() {
|
||||
}
|
||||
|
||||
void removeIfOffscreen(double scroll) {
|
||||
;
|
||||
if (-position.y > scroll + removeLimit ||
|
||||
-position.y < scroll - 50.0) {
|
||||
removeFromParent();
|
||||
}
|
||||
}
|
||||
|
||||
void destroy() {
|
||||
if (parent != null) {
|
||||
Explosion explo = createExplosion();
|
||||
if (explo != null) {
|
||||
explo.position = position;
|
||||
parent.addChild(explo);
|
||||
}
|
||||
|
||||
removeFromParent();
|
||||
}
|
||||
}
|
||||
|
||||
int addDamage(double d) {
|
||||
if (!canBeDamaged) return 0;
|
||||
|
||||
damage += d;
|
||||
if (damage >= maxDamage) {
|
||||
destroy();
|
||||
return (maxDamage * 10).ceil();
|
||||
}
|
||||
return 10;
|
||||
}
|
||||
|
||||
Explosion createExplosion() {
|
||||
return null;
|
||||
}
|
||||
|
||||
void paint(PaintingCanvas canvas) {
|
||||
if (_drawDebug) {
|
||||
canvas.drawCircle(Point.origin, radius, _paintDebug);
|
||||
}
|
||||
super.paint(canvas);
|
||||
}
|
||||
|
||||
void setupActions() {
|
||||
}
|
||||
}
|
||||
|
||||
class Ship extends GameObject {
|
||||
Ship(GameObjectFactory f) {
|
||||
// Add main ship sprite
|
||||
_sprt = new Sprite(f.sheet["ship.png"]);
|
||||
_sprt.scale = 0.3;
|
||||
_sprt.rotation = -90.0;
|
||||
addChild(_sprt);
|
||||
radius = 20.0;
|
||||
|
||||
canBeDamaged = false;
|
||||
canDamageShip = false;
|
||||
|
||||
// Set start position
|
||||
position = new Point(0.0, 50.0);
|
||||
}
|
||||
|
||||
Sprite _sprt;
|
||||
|
||||
void applyThrust(Point joystickValue, double scroll) {
|
||||
Point oldPos = position;
|
||||
Point target = new Point(joystickValue.x * 160.0, joystickValue.y * 220.0 - 250.0 - scroll);
|
||||
double filterFactor = 0.2;
|
||||
|
||||
position = new Point(
|
||||
GameMath.filter(oldPos.x, target.x, filterFactor),
|
||||
GameMath.filter(oldPos.y, target.y, filterFactor));
|
||||
}
|
||||
}
|
||||
|
||||
class Laser extends GameObject {
|
||||
double impact = 1.0;
|
||||
|
||||
Laser(GameObjectFactory f) {
|
||||
// Add sprite
|
||||
_sprt = new Sprite(f.sheet["laser.png"]);
|
||||
_sprt.scale = 0.3;
|
||||
_sprt.transferMode = sky.TransferMode.plus;
|
||||
addChild(_sprt);
|
||||
radius = 10.0;
|
||||
removeLimit = 640.0;
|
||||
|
||||
canDamageShip = false;
|
||||
canBeDamaged = false;
|
||||
}
|
||||
|
||||
Sprite _sprt;
|
||||
|
||||
void move() {
|
||||
position += new Offset(0.0, -10.0);
|
||||
}
|
||||
}
|
||||
|
||||
abstract class Obstacle extends GameObject {
|
||||
|
||||
Obstacle(this._f);
|
||||
|
||||
double explosionScale = 1.0;
|
||||
GameObjectFactory _f;
|
||||
|
||||
Explosion createExplosion() {
|
||||
SoundEffectPlayer.sharedInstance().play(_f.sounds["explosion"]);
|
||||
Explosion explo = new Explosion(_f.sheet);
|
||||
explo.scale = explosionScale;
|
||||
return explo;
|
||||
}
|
||||
}
|
||||
|
||||
abstract class Asteroid extends Obstacle {
|
||||
Asteroid(GameObjectFactory f) : super(f);
|
||||
|
||||
Sprite _sprt;
|
||||
|
||||
void setupActions() {
|
||||
// Rotate obstacle
|
||||
int direction = 1;
|
||||
if (randomBool()) direction = -1;
|
||||
ActionTween rotate = new ActionTween(
|
||||
(a) => _sprt.rotation = a,
|
||||
0.0, 360.0 * direction, 5.0 + 5.0 * randomDouble());
|
||||
_sprt.actions.run(new ActionRepeatForever(rotate));
|
||||
}
|
||||
|
||||
set damage(double d) {
|
||||
super.damage = d;
|
||||
int alpha = ((200.0 * d) ~/ maxDamage).clamp(0, 200);
|
||||
_sprt.colorOverlay = new Color.fromARGB(alpha, 255, 3, 86);
|
||||
}
|
||||
}
|
||||
|
||||
class AsteroidBig extends Asteroid {
|
||||
AsteroidBig(GameObjectFactory f) : super(f) {
|
||||
_sprt = new Sprite(f.sheet["asteroid_big_${randomInt(3)}.png"]);
|
||||
_sprt.scale = 0.3;
|
||||
radius = 25.0;
|
||||
maxDamage = 5.0;
|
||||
addChild(_sprt);
|
||||
}
|
||||
}
|
||||
|
||||
class AsteroidSmall extends Asteroid {
|
||||
AsteroidSmall(GameObjectFactory f) : super(f) {
|
||||
_sprt = new Sprite(f.sheet["asteroid_small_${randomInt(3)}.png"]);
|
||||
_sprt.scale = 0.3;
|
||||
radius = 12.0;
|
||||
maxDamage = 3.0;
|
||||
addChild(_sprt);
|
||||
}
|
||||
}
|
||||
|
||||
class MovingEnemy extends Obstacle {
|
||||
MovingEnemy(GameObjectFactory f) : super(f) {
|
||||
_sprt = new Sprite(f.sheet["ship.png"]);
|
||||
_sprt.scale = 0.2;
|
||||
radius = 12.0;
|
||||
maxDamage = 2.0;
|
||||
addChild(_sprt);
|
||||
|
||||
constraints = [new ConstraintRotationToMovement(dampening: 0.5)];
|
||||
}
|
||||
|
||||
final double _swirlSpacing = 80.0;
|
||||
|
||||
_addRandomSquare(List<Offset> offsets, double x, double y) {
|
||||
double xMove = (randomBool()) ? _swirlSpacing : -_swirlSpacing;
|
||||
double yMove = (randomBool()) ? _swirlSpacing : -_swirlSpacing;
|
||||
|
||||
if (randomBool()) {
|
||||
offsets.addAll([
|
||||
new Offset(x, y),
|
||||
new Offset(xMove + x, y),
|
||||
new Offset(xMove + x, yMove + y),
|
||||
new Offset(x, yMove + y),
|
||||
new Offset(x, y)
|
||||
]);
|
||||
} else {
|
||||
offsets.addAll([
|
||||
new Offset(x, y),
|
||||
new Offset(x, y + yMove),
|
||||
new Offset(xMove + x, yMove + y),
|
||||
new Offset(xMove + x, y),
|
||||
new Offset(x, y)
|
||||
]);
|
||||
}
|
||||
}
|
||||
|
||||
void setupActions() {
|
||||
|
||||
List<Offset> offsets = [];
|
||||
_addRandomSquare(offsets, -_swirlSpacing, 0.0);
|
||||
_addRandomSquare(offsets, _swirlSpacing, 0.0);
|
||||
offsets.add(new Offset(-_swirlSpacing, 0.0));
|
||||
|
||||
List<Point> points = [];
|
||||
for (Offset offset in offsets) {
|
||||
points.add(position + offset);
|
||||
}
|
||||
|
||||
ActionSpline spline = new ActionSpline((a) => position = a, points, 6.0);
|
||||
spline.tension = 0.7;
|
||||
actions.run(new ActionRepeatForever(spline));
|
||||
}
|
||||
|
||||
Sprite _sprt;
|
||||
}
|
||||
29
examples/game/lib/repeated_image.dart
Normal file
29
examples/game/lib/repeated_image.dart
Normal file
@ -0,0 +1,29 @@
|
||||
part of game;
|
||||
|
||||
class RepeatedImage extends Node {
|
||||
Sprite _sprt0;
|
||||
Sprite _sprt1;
|
||||
|
||||
RepeatedImage(sky.Image image, [sky.TransferMode mode = null]) {
|
||||
_sprt0 = new Sprite.fromImage(image);
|
||||
_sprt0.size = new Size(1024.0, 1024.0);
|
||||
_sprt0.pivot = Point.origin;
|
||||
_sprt1 = new Sprite.fromImage(image);
|
||||
_sprt1.size = new Size(1024.0, 1024.0);
|
||||
_sprt1.pivot = Point.origin;
|
||||
_sprt1.position = new Point(0.0, -1024.0);
|
||||
|
||||
if (mode != null) {
|
||||
_sprt0.transferMode = mode;
|
||||
_sprt1.transferMode = mode;
|
||||
}
|
||||
|
||||
addChild(_sprt0);
|
||||
addChild(_sprt1);
|
||||
}
|
||||
|
||||
void move(double dy) {
|
||||
double yPos = (position.y + dy) % 1024.0;
|
||||
position = new Point(0.0, yPos);
|
||||
}
|
||||
}
|
||||
89
examples/game/lib/star_field.dart
Normal file
89
examples/game/lib/star_field.dart
Normal file
@ -0,0 +1,89 @@
|
||||
part of game;
|
||||
|
||||
class StarField extends NodeWithSize {
|
||||
sky.Image _image;
|
||||
SpriteSheet _spriteSheet;
|
||||
int _numStars;
|
||||
bool _autoScroll;
|
||||
|
||||
List<Point> _starPositions;
|
||||
List<double> _starScales;
|
||||
List<Rect> _rects;
|
||||
List<Color> _colors;
|
||||
|
||||
final double _padding = 50.0;
|
||||
Size _paddedSize = Size.zero;
|
||||
|
||||
Paint _paint = new Paint()
|
||||
..setFilterQuality(sky.FilterQuality.low)
|
||||
..isAntiAlias = false
|
||||
..setTransferMode(sky.TransferMode.plus);
|
||||
|
||||
StarField(this._spriteSheet, this._numStars, [this._autoScroll = false]) : super(Size.zero) {
|
||||
_image = _spriteSheet.image;
|
||||
}
|
||||
|
||||
void addStars() {
|
||||
_starPositions = [];
|
||||
_starScales = [];
|
||||
_colors = [];
|
||||
_rects = [];
|
||||
|
||||
size = spriteBox.visibleArea.size;
|
||||
_paddedSize = new Size(size.width + _padding * 2.0,
|
||||
size.height + _padding * 2.0);
|
||||
|
||||
for (int i = 0; i < _numStars; i++) {
|
||||
_starPositions.add(new Point(randomDouble() * _paddedSize.width,
|
||||
randomDouble() * _paddedSize.height));
|
||||
_starScales.add(randomDouble() * 0.4);
|
||||
_colors.add(new Color.fromARGB((255.0 * (randomDouble() * 0.5 + 0.5)).toInt(), 255, 255, 255));
|
||||
_rects.add(_spriteSheet["star_${randomInt(2)}.png"].frame);
|
||||
}
|
||||
}
|
||||
|
||||
void spriteBoxPerformedLayout() {
|
||||
addStars();
|
||||
}
|
||||
|
||||
void paint(PaintingCanvas canvas) {
|
||||
// Create a transform for each star
|
||||
List<sky.RSTransform> transforms = [];
|
||||
for (int i = 0; i < _numStars; i++) {
|
||||
sky.RSTransform transform = new sky.RSTransform(
|
||||
_starScales[i],
|
||||
0.0,
|
||||
_starPositions[i].x - _padding,
|
||||
_starPositions[i].y - _padding);
|
||||
|
||||
transforms.add(transform);
|
||||
}
|
||||
|
||||
// Draw the stars
|
||||
canvas.drawAtlas(_image, transforms, _rects, _colors, sky.TransferMode.modulate, null, _paint);
|
||||
}
|
||||
|
||||
void move(double dx, double dy) {
|
||||
for (int i = 0; i < _numStars; i++) {
|
||||
double xPos = _starPositions[i].x;
|
||||
double yPos = _starPositions[i].y;
|
||||
double scale = _starScales[i];
|
||||
|
||||
xPos += dx * scale;
|
||||
yPos += dy * scale;
|
||||
|
||||
if (xPos >= _paddedSize.width) xPos -= _paddedSize.width;
|
||||
if (xPos < 0) xPos += _paddedSize.width;
|
||||
if (yPos >= _paddedSize.height) yPos -= _paddedSize.height;
|
||||
if (yPos < 0) yPos += _paddedSize.height;
|
||||
|
||||
_starPositions[i] = new Point(xPos, yPos);
|
||||
}
|
||||
}
|
||||
|
||||
void update(double dt) {
|
||||
if (_autoScroll) {
|
||||
move(0.0, dt * 100.0);
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user