のようなものと呼べる粒子エンジンの開発に興味があります。.createCollisionEffect(pos x, pos y, float duration);
そして、エンジンは、指定された持続時間の間、ランダムな方向の粒子の拍車を作成します。次のコードを見つけましたが、3 つの異なるテクスチャを使用してランダムに選択したいのですが、時間と 3 つの異なるテクスチャを管理する方法がわかりません: 次のコードを見つけました:
public ParticleSystem createParticleSystem(final TextureRegion textureRegion) {
//X & Y for the particles to spawn at.
final float particlesXSpawn = 400;
final float particlesYSpawn = 300;
//Max & min rate are the maximum particles per second and the minimum particles per second.
final float maxRate = 10;
final float minRate = 5;
//This variable determines the maximum particles in the particle system.
final int maxParticles = 100;
//Particle emitter which will set all of the particles at a ertain point when they are initialized.
final PointParticleEmitter pointParticleEmtitter = new PointParticleEmitter(particlesXSpawn, particlesYSpawn);
//Creating the particle system.
final ParticleSystem particleSystem = new ParticleSystem(pointParticleEmtitter, maxRate, minRate, maxParticles, textureRegion);
//And now, lets create the initiallizers and modifiers.
//Velocity initiallizer - will pick a random velocity from -20 to 20 on the x & y axes. Play around with this value.
particleSystem.addParticleInitializer(new VelocityInitializer(-20, 20, -20, 20));
//Acceleration initializer - gives all the particles the earth gravity (so they accelerate down).
particleSystem.addParticleInitializer(new GravityInitializer());
//And now, adding an alpha modifier, so particles slowly fade out. This makes a particle go from alpha = 1 to alpha = 0 in 3 seconds, starting exactly when the particle is spawned.
particleSystem.addParticleModifier((IParticleModifier) new AlphaModifier(3, 1, 0));
//Lastly, expire modifier. Make particles die after 3 seconds - their alpha reached 0.
particleSystem.addParticleModifier(new ExpireModifier(3));
return particleSystem;
}
誰でもガイダンスを提供できますか?前もって感謝します!