package net.minecraft.client.particle; import com.mojang.blaze3d.vertex.PoseStack; import com.mojang.blaze3d.vertex.VertexConsumer; import java.util.List; import java.util.Optional; import net.minecraft.client.Camera; import net.minecraft.client.multiplayer.ClientLevel; import net.minecraft.client.renderer.LevelRenderer; import net.minecraft.client.renderer.MultiBufferSource; import net.minecraft.core.BlockPos; import net.minecraft.core.particles.ParticleGroup; import net.minecraft.util.Mth; import net.minecraft.util.RandomSource; import net.minecraft.world.entity.Entity; import net.minecraft.world.phys.AABB; import net.minecraft.world.phys.Vec3; import net.minecraftforge.api.distmarker.Dist; import net.minecraftforge.api.distmarker.OnlyIn; @OnlyIn(Dist.CLIENT) public abstract class Particle { private static final AABB INITIAL_AABB = new AABB(0.0, 0.0, 0.0, 0.0, 0.0, 0.0); private static final double MAXIMUM_COLLISION_VELOCITY_SQUARED = Mth.square(100.0); protected final ClientLevel level; protected double xo; protected double yo; protected double zo; protected double x; protected double y; protected double z; protected double xd; protected double yd; protected double zd; private AABB bb = INITIAL_AABB; protected boolean onGround; protected boolean hasPhysics = true; private boolean stoppedByCollision; protected boolean removed; protected float bbWidth = 0.6F; protected float bbHeight = 1.8F; protected final RandomSource random = RandomSource.create(); protected int age; protected int lifetime; protected float gravity; protected float rCol = 1.0F; protected float gCol = 1.0F; protected float bCol = 1.0F; protected float alpha = 1.0F; protected float roll; protected float oRoll; protected float friction = 0.98F; protected boolean speedUpWhenYMotionIsBlocked = false; protected Particle(ClientLevel p_107234_, double p_107235_, double p_107236_, double p_107237_) { this.level = p_107234_; this.setSize(0.2F, 0.2F); this.setPos(p_107235_, p_107236_, p_107237_); this.xo = p_107235_; this.yo = p_107236_; this.zo = p_107237_; this.lifetime = (int)(4.0F / (this.random.nextFloat() * 0.9F + 0.1F)); } public Particle(ClientLevel p_107239_, double p_107240_, double p_107241_, double p_107242_, double p_107243_, double p_107244_, double p_107245_) { this(p_107239_, p_107240_, p_107241_, p_107242_); this.xd = p_107243_ + (Math.random() * 2.0 - 1.0) * 0.4F; this.yd = p_107244_ + (Math.random() * 2.0 - 1.0) * 0.4F; this.zd = p_107245_ + (Math.random() * 2.0 - 1.0) * 0.4F; double d0 = (Math.random() + Math.random() + 1.0) * 0.15F; double d1 = Math.sqrt(this.xd * this.xd + this.yd * this.yd + this.zd * this.zd); this.xd = this.xd / d1 * d0 * 0.4F; this.yd = this.yd / d1 * d0 * 0.4F + 0.1F; this.zd = this.zd / d1 * d0 * 0.4F; } public Particle setPower(float p_107269_) { this.xd *= p_107269_; this.yd = (this.yd - 0.1F) * p_107269_ + 0.1F; this.zd *= p_107269_; return this; } public void setParticleSpeed(double p_172261_, double p_172262_, double p_172263_) { this.xd = p_172261_; this.yd = p_172262_; this.zd = p_172263_; } public Particle scale(float p_107270_) { this.setSize(0.2F * p_107270_, 0.2F * p_107270_); return this; } public void setColor(float p_107254_, float p_107255_, float p_107256_) { this.rCol = p_107254_; this.gCol = p_107255_; this.bCol = p_107256_; } protected void setAlpha(float p_107272_) { this.alpha = p_107272_; } public void setLifetime(int p_107258_) { this.lifetime = p_107258_; } public int getLifetime() { return this.lifetime; } public void tick() { this.xo = this.x; this.yo = this.y; this.zo = this.z; if (this.age++ >= this.lifetime) { this.remove(); } else { this.yd = this.yd - 0.04 * this.gravity; this.move(this.xd, this.yd, this.zd); if (this.speedUpWhenYMotionIsBlocked && this.y == this.yo) { this.xd *= 1.1; this.zd *= 1.1; } this.xd = this.xd * this.friction; this.yd = this.yd * this.friction; this.zd = this.zd * this.friction; if (this.onGround) { this.xd *= 0.7F; this.zd *= 0.7F; } } } public abstract void render(VertexConsumer p_107261_, Camera p_107262_, float p_107263_); public void renderCustom(PoseStack p_378708_, MultiBufferSource p_377318_, Camera p_375679_, float p_378540_) { } public abstract ParticleRenderType getRenderType(); @Override public String toString() { return this.getClass().getSimpleName() + ", Pos (" + this.x + "," + this.y + "," + this.z + "), RGBA (" + this.rCol + "," + this.gCol + "," + this.bCol + "," + this.alpha + "), Age " + this.age; } public void remove() { this.removed = true; } protected void setSize(float p_107251_, float p_107252_) { if (p_107251_ != this.bbWidth || p_107252_ != this.bbHeight) { this.bbWidth = p_107251_; this.bbHeight = p_107252_; AABB aabb = this.getBoundingBox(); double d0 = (aabb.minX + aabb.maxX - p_107251_) / 2.0; double d1 = (aabb.minZ + aabb.maxZ - p_107251_) / 2.0; this.setBoundingBox(new AABB(d0, aabb.minY, d1, d0 + this.bbWidth, aabb.minY + this.bbHeight, d1 + this.bbWidth)); } } public void setPos(double p_107265_, double p_107266_, double p_107267_) { this.x = p_107265_; this.y = p_107266_; this.z = p_107267_; float f = this.bbWidth / 2.0F; float f1 = this.bbHeight; this.setBoundingBox(new AABB(p_107265_ - f, p_107266_, p_107267_ - f, p_107265_ + f, p_107266_ + f1, p_107267_ + f)); } public void move(double p_107246_, double p_107247_, double p_107248_) { if (!this.stoppedByCollision) { double d0 = p_107246_; double d1 = p_107247_; double d2 = p_107248_; if (this.hasPhysics && (p_107246_ != 0.0 || p_107247_ != 0.0 || p_107248_ != 0.0) && p_107246_ * p_107246_ + p_107247_ * p_107247_ + p_107248_ * p_107248_ < MAXIMUM_COLLISION_VELOCITY_SQUARED) { Vec3 vec3 = Entity.collideBoundingBox(null, new Vec3(p_107246_, p_107247_, p_107248_), this.getBoundingBox(), this.level, List.of()); p_107246_ = vec3.x; p_107247_ = vec3.y; p_107248_ = vec3.z; } if (p_107246_ != 0.0 || p_107247_ != 0.0 || p_107248_ != 0.0) { this.setBoundingBox(this.getBoundingBox().move(p_107246_, p_107247_, p_107248_)); this.setLocationFromBoundingbox(); } if (Math.abs(d1) >= 1.0E-5F && Math.abs(p_107247_) < 1.0E-5F) { this.stoppedByCollision = true; } this.onGround = d1 != p_107247_ && d1 < 0.0; if (d0 != p_107246_) { this.xd = 0.0; } if (d2 != p_107248_) { this.zd = 0.0; } } } protected void setLocationFromBoundingbox() { AABB aabb = this.getBoundingBox(); this.x = (aabb.minX + aabb.maxX) / 2.0; this.y = aabb.minY; this.z = (aabb.minZ + aabb.maxZ) / 2.0; } protected int getLightColor(float p_107249_) { BlockPos blockpos = BlockPos.containing(this.x, this.y, this.z); return this.level.hasChunkAt(blockpos) ? LevelRenderer.getLightColor(this.level, blockpos) : 0; } public boolean isAlive() { return !this.removed; } public AABB getBoundingBox() { return this.bb; } public void setBoundingBox(AABB p_107260_) { this.bb = p_107260_; } public Optional getParticleGroup() { return Optional.empty(); } @OnlyIn(Dist.CLIENT) public record LifetimeAlpha(float startAlpha, float endAlpha, float startAtNormalizedAge, float endAtNormalizedAge) { public static final Particle.LifetimeAlpha ALWAYS_OPAQUE = new Particle.LifetimeAlpha(1.0F, 1.0F, 0.0F, 1.0F); public boolean isOpaque() { return this.startAlpha >= 1.0F && this.endAlpha >= 1.0F; } public float currentAlphaForAge(int p_335935_, int p_329593_, float p_335112_) { if (Mth.equal(this.startAlpha, this.endAlpha)) { return this.startAlpha; } else { float f = Mth.inverseLerp((p_335935_ + p_335112_) / p_329593_, this.startAtNormalizedAge, this.endAtNormalizedAge); return Mth.clampedLerp(this.startAlpha, this.endAlpha, f); } } } }