remove ParticleSpawnEvent

the particle renderer is already abstract, no need for it

src/main/java/de/bixilon/minosoft/data/world/World.kt

@@ -57,7 +57,7 @@ class World(
     val connection: PlayConnection,
 ) : WorldAudioPlayer, WorldParticleRenderer {
     val lock = SimpleLock()
-    val random = Random()
+    override val random = Random()
     val biomes = WorldBiomes(this)
     val chunks = ChunkManager(this, 1000, 100)
     val entities = WorldEntities()

src/main/java/de/bixilon/minosoft/data/world/particle/AbstractParticleRenderer.kt

@@ -1,6 +1,6 @@
 /*
  * Minosoft
- * Copyright (C) 2020-2022 Moritz Zwerger
+ * Copyright (C) 2020-2023 Moritz Zwerger
  *
  * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
  *
@@ -14,8 +14,10 @@
 package de.bixilon.minosoft.data.world.particle
 
 import de.bixilon.minosoft.gui.rendering.particle.types.Particle
+import java.util.*
 
 interface AbstractParticleRenderer {
+    val random: Random
 
     fun addParticle(particle: Particle)
 

src/main/java/de/bixilon/minosoft/gui/rendering/particle/DefaultParticleBehavior.kt

@@ -14,57 +14,27 @@
 package de.bixilon.minosoft.gui.rendering.particle
 
 import de.bixilon.kotlinglm.vec3.Vec3d
-import de.bixilon.kutil.concurrent.pool.DefaultThreadPool
 import de.bixilon.minosoft.config.profile.profiles.particle.ParticleProfile
 import de.bixilon.minosoft.gui.rendering.particle.types.norender.ExplosionEmitterParticle
 import de.bixilon.minosoft.gui.rendering.particle.types.render.texture.simple.explosion.ExplosionParticle
-import de.bixilon.minosoft.gui.rendering.util.VecUtil.times
 import de.bixilon.minosoft.modding.event.events.ExplosionEvent
-import de.bixilon.minosoft.modding.event.events.ParticleSpawnEvent
-import de.bixilon.minosoft.modding.event.listener.CallbackEventListener
+import de.bixilon.minosoft.modding.event.listener.CallbackEventListener.Companion.listen
 import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
-import java.util.*
 
 object DefaultParticleBehavior {
 
     fun register(connection: PlayConnection, renderer: ParticleRenderer) {
-        val random = Random()
         val profile = connection.profiles.particle
-        val invokers = listOf(
-            connection.explosion(renderer, random, profile),
-
-            CallbackEventListener.of<ParticleSpawnEvent> {
-                DefaultThreadPool += add@{
-                    fun spawn(position: Vec3d, velocity: Vec3d) {
-                        val factory = it.data.type.factory ?: return
-                        renderer += factory.build(connection, position, velocity, it.data) ?: return
-                    }
-                    // ToDo: long distance = always spawn?
-                    if (it.count == 0) {
-                        val velocity = it.offset * it.speed
-
-                        spawn(it.position, Vec3d(velocity))
-                    } else {
-                        for (i in 0 until it.count) {
-                            val offset = Vec3d(it.offset) * { random.nextGaussian() }
-                            val velocity = Vec3d(it.speed) * { random.nextGaussian() }
-
-                            spawn(it.position + offset, velocity)
-                        }
-                    }
-                }
-            },
-        )
-        connection.events.register(*invokers.filterNotNull().toTypedArray())
+        connection.explosion(renderer, profile)
     }
 
-    private fun PlayConnection.explosion(renderer: ParticleRenderer, random: Random, profile: ParticleProfile): CallbackEventListener<*>? {
-        val explosion = registries.particleType[ExplosionParticle] ?: return null
-        val emitter = registries.particleType[ExplosionEmitterParticle] ?: return null
+    private fun PlayConnection.explosion(renderer: ParticleRenderer, profile: ParticleProfile) {
+        val explosion = registries.particleType[ExplosionParticle] ?: return
+        val emitter = registries.particleType[ExplosionEmitterParticle] ?: return
 
-        return CallbackEventListener.of<ExplosionEvent> {
+        this.listen<ExplosionEvent> {
             if (!profile.types.explosions) {
-                return@of
+                return@listen
             }
             if (it.power >= 2.0f) {
                 renderer += ExplosionEmitterParticle(this, Vec3d(it.position), emitter.default())

src/main/java/de/bixilon/minosoft/gui/rendering/particle/ParticleRenderer.kt

@@ -33,12 +33,14 @@ import de.bixilon.minosoft.modding.event.listener.CallbackEventListener.Companio
 import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.play.block.chunk.ChunkUtil.isInViewDistance
 import de.bixilon.minosoft.util.collections.floats.BufferedArrayFloatList
+import java.util.*
 
 
 class ParticleRenderer(
     private val connection: PlayConnection,
     override val context: RenderContext,
 ) : WorldRenderer, AsyncRenderer, SkipAll, AbstractParticleRenderer {
+    override val random = Random()
     override val layers = LayerSettings()
     override val renderSystem: RenderSystem = context.system
     private val profile = connection.profiles.particle

src/main/java/de/bixilon/minosoft/modding/event/events/ParticleSpawnEvent.kt

@@ -1,36 +0,0 @@
-/*
- * Minosoft
- * Copyright (C) 2020-2023 Moritz Zwerger
- *
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- * This software is not affiliated with Mojang AB, the original developer of Minecraft.
- */
-package de.bixilon.minosoft.modding.event.events
-
-import de.bixilon.kotlinglm.vec3.Vec3
-import de.bixilon.kotlinglm.vec3.Vec3d
-import de.bixilon.minosoft.data.registries.particle.data.ParticleData
-import de.bixilon.minosoft.modding.event.events.connection.play.PlayConnectionEvent
-import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
-import de.bixilon.minosoft.protocol.packets.s2c.play.world.ParticleS2CP
-
-class ParticleSpawnEvent(
-    connection: PlayConnection,
-    position: Vec3d,
-    offset: Vec3,
-    val speed: Float,
-    val count: Int,
-    val data: ParticleData,
-) : PlayConnectionEvent(connection), CancelableEvent {
-    val position: Vec3d = position
-        get() = Vec3d(field)
-    val offset: Vec3 = offset
-        get() = Vec3(field)
-
-    constructor(connection: PlayConnection, packet: ParticleS2CP) : this(connection, packet.position, packet.offset, packet.speed, packet.count, packet.data)
-}

src/main/java/de/bixilon/minosoft/protocol/packets/s2c/play/world/ParticleS2CP.kt

@@ -15,7 +15,7 @@ package de.bixilon.minosoft.protocol.packets.s2c.play.world
 import de.bixilon.kotlinglm.vec3.Vec3
 import de.bixilon.kotlinglm.vec3.Vec3d
 import de.bixilon.minosoft.data.registries.particle.data.ParticleData
-import de.bixilon.minosoft.modding.event.events.ParticleSpawnEvent
+import de.bixilon.minosoft.gui.rendering.util.VecUtil.times
 import de.bixilon.minosoft.protocol.network.connection.play.PlayConnection
 import de.bixilon.minosoft.protocol.packets.s2c.PlayS2CPacket
 import de.bixilon.minosoft.protocol.protocol.ProtocolVersions
@@ -48,8 +48,21 @@ class ParticleS2CP(buffer: PlayInByteBuffer) : PlayS2CPacket {
         if (!connection.profiles.particle.types.packet) {
             return
         }
-        if (connection.events.fire(ParticleSpawnEvent(connection, this))) {
-            return
+        val renderer = connection.world.particle ?: return
+
+        fun spawn(position: Vec3d, velocity: Vec3d) {
+            val factory = data.type.factory ?: return
+            renderer += factory.build(connection, position, velocity, data) ?: return
+        }
+
+        if (count <= 1) {
+            return spawn(position, Vec3d(offset * speed))
+        }
+        for (i in 0 until count) {
+            val offset = Vec3d(offset) * { renderer.random.nextGaussian() }
+            val velocity = Vec3d(speed) * { renderer.random.nextGaussian() }
+
+            spawn(position + offset, velocity)
         }
     }