/* * Decompiled with CFR 0.152. */ package net.minecraft.client.particle; import net.minecraft.client.multiplayer.ClientLevel; import net.minecraft.client.particle.Particle; import net.minecraft.client.particle.ParticleProvider; import net.minecraft.client.particle.SingleQuadParticle; import net.minecraft.client.particle.SpriteSet; import net.minecraft.client.renderer.texture.TextureAtlasSprite; import net.minecraft.core.BlockPos; import net.minecraft.core.particles.SimpleParticleType; import net.minecraft.util.Mth; import net.minecraft.util.RandomSource; public class FireflyParticle extends SingleQuadParticle { private static final float PARTICLE_FADE_OUT_LIGHT_TIME = 0.3f; private static final float PARTICLE_FADE_IN_LIGHT_TIME = 0.1f; private static final float PARTICLE_FADE_OUT_ALPHA_TIME = 0.5f; private static final float PARTICLE_FADE_IN_ALPHA_TIME = 0.3f; private static final int PARTICLE_MIN_LIFETIME = 200; private static final int PARTICLE_MAX_LIFETIME = 300; private FireflyParticle(ClientLevel level, double x, double y, double z, double xa, double ya, double za, TextureAtlasSprite sprite) { super(level, x, y, z, xa, ya, za, sprite); this.speedUpWhenYMotionIsBlocked = true; this.friction = 0.96f; this.quadSize *= 0.75f; this.yd *= (double)0.8f; this.xd *= (double)0.8f; this.zd *= (double)0.8f; } @Override public SingleQuadParticle.Layer getLayer() { return SingleQuadParticle.Layer.TRANSLUCENT; } @Override public int getLightColor(float a) { return (int)(255.0f * FireflyParticle.getFadeAmount(this.getLifetimeProgress((float)this.age + a), 0.1f, 0.3f)); } @Override public void tick() { super.tick(); if (!this.level.getBlockState(BlockPos.containing(this.x, this.y, this.z)).isAir()) { this.remove(); return; } this.setAlpha(FireflyParticle.getFadeAmount(this.getLifetimeProgress(this.age), 0.3f, 0.5f)); if (Math.random() > 0.95 || this.age == 1) { this.setParticleSpeed((double)-0.05f + (double)0.1f * Math.random(), (double)-0.05f + (double)0.1f * Math.random(), (double)-0.05f + (double)0.1f * Math.random()); } } private float getLifetimeProgress(float currentAge) { return Mth.clamp(currentAge / (float)this.lifetime, 0.0f, 1.0f); } private static float getFadeAmount(float lifetimeProgress, float fadeInTime, float fadeOutTime) { if (lifetimeProgress >= 1.0f - fadeInTime) { return (1.0f - lifetimeProgress) / fadeInTime; } if (lifetimeProgress <= fadeOutTime) { return lifetimeProgress / fadeOutTime; } return 1.0f; } public static class FireflyProvider implements ParticleProvider { private final SpriteSet sprite; public FireflyProvider(SpriteSet sprite) { this.sprite = sprite; } @Override public Particle createParticle(SimpleParticleType options, ClientLevel level, double x, double y, double z, double xAux, double yAux, double zAux, RandomSource random) { FireflyParticle particle = new FireflyParticle(level, x, y, z, 0.5 - random.nextDouble(), random.nextBoolean() ? yAux : -yAux, 0.5 - random.nextDouble(), this.sprite.get(random)); particle.setLifetime(random.nextIntBetweenInclusive(200, 300)); particle.scale(1.5f); particle.setAlpha(0.0f); return particle; } } }