72 lines
2.4 KiB
Dart
72 lines
2.4 KiB
Dart
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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