re-added config subcommand, this time better than ever!

src/main/kotlin/com/bytedice/bde_particles/Bde_particles.kt

@@ -1,12 +1,9 @@
-@file:Suppress("UNCHECKED_CAST")
-
 package com.bytedice.bde_particles
 
 import com.bytedice.bde_particles.commands.GiveEmitterTool
 import com.bytedice.bde_particles.commands.ManageEmitters
 import com.bytedice.bde_particles.items.ParticleEmitterTool
-import com.bytedice.bde_particles.math.raycastFromPlayer
+import com.bytedice.bde_particles.particleIdRegister.*
-import com.bytedice.bde_particles.particle.*
 import net.fabricmc.api.ModInitializer
 import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback
 import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
@@ -20,7 +17,6 @@ import net.minecraft.util.ActionResult
 import net.minecraft.util.Hand
 import net.minecraft.util.TypedActionResult
 import net.minecraft.world.World
-import org.joml.Vector3f
 
 
 // TODO: finish the particle ticking
@@ -132,53 +128,3 @@ fun emitterParamsToJson(params: EmitterParams) : Map<String, Any> {
 
   return emitterParamsJSON
 }
-
-
-fun jsonToEmitterParams(json: Map<String, Any>): EmitterParams {
-  val particleTypes = json["particleTypes"] as? List<*>
-    ?: throw IllegalArgumentException("particleTypes must be a list of ParticleParams")
-
-  val allParticleTypes: MutableList<ParticleParams> = mutableListOf()
-
-  for (particle in particleTypes.iterator()) {
-    val particleParams = particle as? ParticleParams ?: ParticleParams.DEFAULT
-
-    val updatedParticle = ParticleParams(
-      shape = (particleParams.shape ?: ParticleParams.DEFAULT.shape),
-      blockCurve = (json["blockCurve"] as? Array<String>) ?: particleParams.blockCurve,
-      rotRandom = (json["rotRandom"] as? Pair<Vector3f, Vector3f>) ?: particleParams.rotRandom,
-      rotVelRandom = (json["rotVelRandom"] as? Pair<Vector3f, Vector3f>) ?: particleParams.rotVelRandom,
-      rotVelCurve = (json["rotVelCurve"] as? Array<Vector3f>) ?: particleParams.rotVelCurve,
-      sizeRandom = (json["sizeRandom"] as? Pair<Vector3f, Vector3f>) ?: particleParams.sizeRandom,
-      uniformSize = (json["uniformSize"] as? Boolean) ?: particleParams.uniformSize,
-      sizeCurve = (json["sizeCurve"] as? Array<Vector3f>) ?: particleParams.sizeCurve,
-      velRandom = (json["velRandom"] as? Pair<Vector3f, Vector3f>) ?: particleParams.velRandom,
-      forceFields = (json["forceFields"] as? Array<ForceField>) ?: particleParams.forceFields,
-      gravity = (json["gravity"] as? Vector3f) ?: particleParams.gravity,
-      drag = (json["drag"] as? Float) ?: particleParams.drag,
-      minVel = (json["minVel"] as? Float) ?: particleParams.minVel,
-      lifeTime = (json["lifeTime"] as? Pair<Int, Int>) ?: particleParams.lifeTime
-    )
-
-    allParticleTypes.add(updatedParticle)
-  }
-
-  val params = EmitterParams(
-    maxCount = (json["maxCount"] as? Int) ?: EmitterParams.DEFAULT.maxCount,
-    spawnsPerTick = (json["spawnsPerTick"] as? Int) ?: EmitterParams.DEFAULT.spawnsPerTick,
-    loopDur = (json["loopDur"] as? Int) ?: EmitterParams.DEFAULT.loopDur,
-    loopDelay = (json["loopDelay"] as? Int) ?: EmitterParams.DEFAULT.loopDelay,
-    loopCount = (json["loopCount"] as? Int) ?: EmitterParams.DEFAULT.loopCount,
-    particleTypes = allParticleTypes.toTypedArray()
-  )
-
-  return params
-}
-
-
-
-fun stringToMap(input: String): Map<String, String> {
-  return input.split(",")
-    .map { it.split("=") }
-    .associate { it[0].trim() to it[1].trim() }
-}

src/main/kotlin/com/bytedice/bde_particles/Math.kt

@@ -1,4 +1,4 @@
-package com.bytedice.bde_particles.math
+package com.bytedice.bde_particles
 
 import net.minecraft.server.network.ServerPlayerEntity
 import net.minecraft.util.hit.HitResult

src/main/kotlin/com/bytedice/bde_particles/commands/GiveEmitterTool.kt

@@ -1,7 +1,7 @@
 package com.bytedice.bde_particles.commands
 
 import com.bytedice.bde_particles.items.ParticleEmitterTool
-import com.bytedice.bde_particles.particle.emitterIdRegister
+import com.bytedice.bde_particles.particleIdRegister.emitterIdRegister
 import com.mojang.brigadier.Command
 import com.mojang.brigadier.CommandDispatcher
 import com.mojang.brigadier.arguments.StringArgumentType
@@ -45,7 +45,7 @@ object GiveEmitterTool {
               val emitterId = StringArgumentType.getString(context, "Emitter ID")
 
               val feedback = Text.literal("BPS - You like fancy particles. Don't you?\nBPS - gave particle emitter, bound to ID: \"${emitterId}\".")
-                .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(0, 200, 0).rgb)).withItalic(true))
+                .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(0, 200, 0).rgb)))
 
               context.source.player?.inventory?.insertStack(ParticleEmitterTool.makeData(item.item, name, emitterId))
               context.source.sendFeedback({ feedback }, false)

src/main/kotlin/com/bytedice/bde_particles/commands/ManageEmitters.kt

@@ -1,7 +1,7 @@
 package com.bytedice.bde_particles.commands
 
 import com.bytedice.bde_particles.emitterParamsToJson
-import com.bytedice.bde_particles.particle.*
+import com.bytedice.bde_particles.particleIdRegister.*
 import com.mojang.brigadier.Command
 import com.mojang.brigadier.CommandDispatcher
 import com.mojang.brigadier.arguments.StringArgumentType
@@ -26,26 +26,26 @@ import java.util.concurrent.CompletableFuture
 // ManageEmitters
 // <create / remove / config / list>
   // create
-    // [emitter id]
+    // <emitter id>
-    // [preset emitter id]
+    // <preset emitter id>
     // output -> register new emitter with a preset
 
   // remove
-    // [emitter id]
+    // <emitter id>
     // output -> removes the particle with that id
 
   // config // TODO
-    // [emitter id]
+    // <emitter id>
     // <[particle index] / EMITTER>
-    // [param key] // HARDCODED KEYS, if EMITTER use emitter params.
+    // <param key>                    // HARDCODED KEYS, if EMITTER use emitter params.
-    // [new param value] // HARDCODED TYPES
+    // <new param value>              // HARDCODED TYPES
     // output -> update the selected parameter of the selected emitter id to the new value
 
   // list
     // output -> all registered emitters
 
   // copy
-    // [emitter id]
+    // <emitter id>
     // output -> give player a command block with the particle params (should be paste-able in kotlin)
 
 
@@ -59,6 +59,7 @@ object ManageEmitters {
         // <create / remove / config / list / copy>
         .then(argCreate())
         .then(argRemove())
+        .then(argConfig())
         .then(argList())
         .then(argCopy())
       )
@@ -68,6 +69,7 @@ object ManageEmitters {
 
 val allEmitterIds = emitterIdRegister.keys
 
+// TODO: maybe make this a Command.literal()
 val emitterIdSuggestion: RequiredArgumentBuilder<ServerCommandSource, String> = CommandManager.argument("Registered Emitter ID", StringArgumentType.string())
   .suggests { _, builder ->
     val suggestionsBuilder = SuggestionsBuilder(builder.remaining, 0)
@@ -78,6 +80,7 @@ val emitterIdSuggestion: RequiredArgumentBuilder<ServerCommandSource, String> =
   }
 
 
+// TODO: fix "new emitter id" error
 fun argCreate() : LiteralArgumentBuilder<ServerCommandSource> {
   return CommandManager.literal("create")
     .then(
@@ -105,8 +108,13 @@ fun argCreate() : LiteralArgumentBuilder<ServerCommandSource> {
                         "BPS - This emitter will be removed on server restart! Use \"/ManageEmitters copy\" to save the data to your clipboard!")
                   .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(0, 200, 0).rgb)))
               }
+              else if (newEmitterId !in allEmitterIds) {
+                Text.literal("BPS - Preset Emitter ID \"$emitterPresetVal\" doesn't exist!\n" +
+                        "BPS - Use \"/ManageEmitters list\" to view all Emitter ID's.")
+                  .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(200, 0, 0).rgb)))
+              }
               else {
-                Text.literal("BPS - Emitter ID \"$newEmitterId\" already exists!\n" +
+                Text.literal("BPS - Emitter ID \"$newEmitterId\" already exists\n" +
                         "BPS - Use \"/ManageEmitters list\" to view all Emitter ID's.")
                   .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(200, 0, 0).rgb)))
               }
@@ -200,6 +208,26 @@ fun argCopy() : LiteralArgumentBuilder<ServerCommandSource> {
     )
 }
 
+// config // TODO
+  // <emitter id>
+  // <[particle index] / EMITTER>
+  // <param key>                    // HARDCODED KEYS, if EMITTER use emitter params.
+  // <new param value>              // HARDCODED TYPES
+  // output -> update the selected parameter of the selected emitter id to the new value
+fun argConfig() : LiteralArgumentBuilder<ServerCommandSource> {
+  return CommandManager.literal("config")
+    .then(
+      emitterIdSuggestion
+        .then(argConfigEmitter())
+    )
+}
+
+
+fun argConfigEmitter() : LiteralArgumentBuilder<ServerCommandSource> {
+  return CommandManager.literal("EMITTER")
+    .then(ArgConfigEmitterKeys().maxCount())
+}
+
 
 fun makeCommandBlock(emitterData: Map<String, Any>): ItemStack {
   val i = ItemStack(Items.COMMAND_BLOCK)

src/main/kotlin/com/bytedice/bde_particles/commands/ManageEmittersConfigArgs.kt

@@ -0,0 +1,47 @@
+package com.bytedice.bde_particles.commands
+import com.bytedice.bde_particles.particleIdRegister.updateSingleParam
+import com.mojang.brigadier.Command
+import com.mojang.brigadier.arguments.IntegerArgumentType
+import com.mojang.brigadier.arguments.StringArgumentType
+import com.mojang.brigadier.builder.LiteralArgumentBuilder
+import com.mojang.brigadier.context.CommandContext
+import net.minecraft.server.command.CommandManager
+import net.minecraft.server.command.ServerCommandSource
+import net.minecraft.text.MutableText
+import net.minecraft.text.Style
+import net.minecraft.text.Text
+import java.awt.Color
+
+
+fun argUpdateEmitterParam(context: CommandContext<ServerCommandSource>, paramName: String, typeValue: Any) : MutableText {
+  val emitterIdVal = StringArgumentType.getString(context, "Registered Emitter ID")
+
+  val success = updateSingleParam(emitterIdVal, -1, "maxCount", typeValue)
+
+  val feedback = if (success) {
+    Text.literal("BPS - Successfully updated Emitter ID \"$emitterIdVal\" parameter \"$paramName\" to value \"$typeValue\"")
+      .setStyle(Style.EMPTY.withColor(Color(0, 200, 0).rgb))
+  }
+  else {
+    Text.literal("BPS - Failed to update Emitter ID \"$emitterIdVal\" parameter \"$paramName\" to value \"$typeValue\": Unknown Error")
+      .setStyle(Style.EMPTY.withColor(Color(200, 0, 0).rgb))
+  }
+
+  return feedback
+}
+
+
+class ArgConfigEmitterKeys {
+  fun maxCount() : LiteralArgumentBuilder<ServerCommandSource> {
+    return CommandManager.literal("maxCount")
+      .then(
+        CommandManager.argument("Int", IntegerArgumentType.integer())
+          .executes { context ->
+            val typeValue = IntegerArgumentType.getInteger(context, "Int")
+            val feedback = argUpdateEmitterParam(context, "maxCount", typeValue)
+            context.source.sendFeedback({ feedback }, false)
+            Command.SINGLE_SUCCESS
+          }
+      )
+  }
+}

src/main/kotlin/com/bytedice/bde_particles/items/ParticleEmitterTool.kt

@@ -25,7 +25,7 @@ object ParticleEmitterTool {
     val displayName = Text.literal(name)
       .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(0, 200, 0).rgb)).withItalic(true))
 
-    val loreLines = Text.literal("BPS - Bound to ID \"$emitterId\".")
+    val loreLines = Text.literal("BPS - Bound to Emitter ID \"$emitterId\".")
       .setStyle(Style.EMPTY.withColor(TextColor.fromRgb(Color(0, 200, 0).rgb)).withItalic(true))
 
     val lore = LoreComponent(listOf(loreLines))

src/main/kotlin/com/bytedice/bde_particles/particle/particleIdRegister.kt

@@ -1,34 +0,0 @@
-package com.bytedice.bde_particles.particle
-
-val emitterIdRegister: MutableMap<String, EmitterParams> = mutableMapOf()
-val forbiddenIds = arrayOf("", "DEFAULT", "NULL")
-
-
-fun addToEmitterRegister(id: String, params: EmitterParams) : Pair<String, Boolean> {
-  val newId = id.replace(" ", "_")
-
-  if (newId in forbiddenIds && newId != "DEFAULT") {return Pair(newId, false) }
-  if (emitterIdRegister.containsKey(newId))        {return Pair(newId, false) }
-
-  emitterIdRegister[id] = params
-  return Pair(newId, true)
-}
-
-
-fun removeFromEmitterRegister(id: String) : Boolean {
-  if (id in forbiddenIds)                 { return false }
-  if (!emitterIdRegister.containsKey(id)) { return false }
-
-  emitterIdRegister.remove(id)
-  return true
-}
-
-
-fun getEmitterParams(id: String) : EmitterParams? {
-  return emitterIdRegister[id]
-}
-
-
-fun updateEmitterParams(id: String, newParams: EmitterParams) {
-  emitterIdRegister[id] = newParams
-}

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/EmitterParams.kt

@@ -1,4 +1,4 @@
-package com.bytedice.bde_particles.particle
+package com.bytedice.bde_particles.particleIdRegister
 
 /**
  * EmitterParams defines the parameters for controlling how particles are emitted,
@@ -12,12 +12,12 @@ package com.bytedice.bde_particles.particle
  * @param particleTypes An array of `ParticleParams` defining the types of particles to spawn. If empty, no particles will spawn.
  */
 data class EmitterParams (
-  val maxCount:      Int                   = 200,
+  var maxCount:      Int                   = 200,
-  val spawnsPerTick: Int                   = 2,
+  var spawnsPerTick: Int                   = 2,
-  val loopDur:       Int                   = 25,
+  var loopDur:       Int                   = 25,
-  val loopDelay:     Int                   = 10,
+  var loopDelay:     Int                   = 10,
-  val loopCount:     Int                   = 3,
+  var loopCount:     Int                   = 3,
-  val particleTypes: Array<ParticleParams> = arrayOf(ParticleParams()),
+  var particleTypes: Array<ParticleParams> = arrayOf(ParticleParams()),
 )
 {
   companion object Presets {
@@ -28,7 +28,7 @@ data class EmitterParams (
       25,
       0,
       0,
-      arrayOf(ParticleParams.FIRE_GEYSER)
+      arrayOf(ParticleParams.DEFAULT)
     )
   }
 }

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/ForceFields.kt

@@ -1,4 +1,4 @@
-package com.bytedice.bde_particles.particle
+package com.bytedice.bde_particles.particleIdRegister
 
 data class ForceField (
   val x:        Float           = 0.0f,

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/Particle.kt

@@ -1,8 +1,6 @@
-package com.bytedice.bde_particles.particle
+package com.bytedice.bde_particles.particleIdRegister
 
-import com.bytedice.bde_particles.DisplayEntity
+import com.bytedice.bde_particles.*
-import com.bytedice.bde_particles.DisplayEntityProperties
-import com.bytedice.bde_particles.math.*
 import net.minecraft.server.world.ServerWorld
 import net.minecraft.util.math.Vec3d
 import org.joml.Vector3f

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/ParticleEmitter.kt

@@ -1,4 +1,4 @@
-package com.bytedice.bde_particles.particle
+package com.bytedice.bde_particles.particleIdRegister
 
 import net.minecraft.server.world.ServerWorld
 import net.minecraft.util.math.Vec3d

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/ParticleIdRegister.kt

@@ -0,0 +1,136 @@
+@file:Suppress("UNCHECKED_CAST")
+
+package com.bytedice.bde_particles.particleIdRegister
+
+import org.joml.Vector3f
+
+
+val emitterIdRegister: MutableMap<String, EmitterParams> = mutableMapOf()
+val forbiddenIds = arrayOf("", "DEFAULT", "NULL")
+
+
+fun addToEmitterRegister(id: String, params: EmitterParams) : Pair<String, Boolean> {
+  val newId = id.replace(" ", "_")
+
+  if (newId in forbiddenIds && newId != "DEFAULT") { return Pair(newId, false) }
+  if (emitterIdRegister.containsKey(newId))        { return Pair(newId, false) }
+
+  emitterIdRegister[id] = params
+  return Pair(newId, true)
+}
+
+
+fun removeFromEmitterRegister(id: String) : Boolean {
+  if (id in forbiddenIds)                 { return false }
+  if (!emitterIdRegister.containsKey(id)) { return false }
+
+  emitterIdRegister.remove(id)
+  return true
+}
+
+
+fun getEmitterParams(id: String) : EmitterParams? {
+  return emitterIdRegister[id]
+}
+
+
+fun updateEmitterParams(id: String, newParams: EmitterParams) {
+  emitterIdRegister[id] = newParams
+}
+
+
+fun updateSingleParam(id: String, particleIndex: Int, paramName: String, paramValue: Any) : Boolean {
+  val emitter = getEmitterParams(id) ?: return false
+
+  if (particleIndex == -1) {
+    val updatedValues = updateSingleEmitterParam(emitter, paramName, paramValue)
+    updateEmitterParams(id, updatedValues.first)
+
+    return updatedValues.second
+  }
+  else if (emitter.particleTypes.isNotEmpty()) {
+    val particle = emitter.particleTypes[particleIndex]
+
+    val updatedValues = updateSingleParticleParam(particle, paramName, paramValue)
+
+    emitter.particleTypes[particleIndex] = updatedValues.first
+    updateEmitterParams(id, emitter)
+
+    return updatedValues.second
+  }
+  else {
+    return false
+  }
+}
+
+
+fun updateSingleEmitterParam(params: EmitterParams, paramName: String, paramValue: Any) : Pair<EmitterParams, Boolean> {
+  val value: Any? = when (paramName) {
+    "maxCount"      -> paramValue as Int
+    "spawnsPerTick" -> paramValue as Int
+    "loopDur"       -> paramValue as Int
+    "loopDelay"     -> paramValue as Int
+    "loopCount"     -> paramValue as Int
+    else            -> null
+  }
+
+  if (value == null) { return Pair(params, false) }
+
+  val newParams = params.copy()
+
+  when (paramName) {
+    "maxCount"      -> newParams.maxCount      = value as Int
+    "spawnsPerTick" -> newParams.spawnsPerTick = value as Int
+    "loopDur"       -> newParams.loopDur       = value as Int
+    "loopDelay"     -> newParams.loopDelay     = value as Int
+    "loopCount"     -> newParams.loopCount     = value as Int
+    else            -> return Pair(params, false)
+  }
+
+  return Pair(newParams, true)
+}
+
+
+fun updateSingleParticleParam(params: ParticleParams, paramName: String, paramValue: Any) : Pair<ParticleParams, Boolean> {
+  val value: Any? = when (paramName) {
+    "shape"        -> paramValue as SpawningShape?
+    "blockCurve"   -> paramValue as Array<String>
+    "rotRandom"    -> paramValue as Pair<Vector3f, Vector3f>
+    "rotVelRandom" -> paramValue as Pair<Vector3f, Vector3f>
+    "rotVelCurve"  -> paramValue as Array<Vector3f>
+    "sizeRandom"   -> paramValue as Pair<Vector3f, Vector3f>
+    "uniformSize"  -> paramValue as Boolean
+    "sizeCurve"    -> paramValue as Array<Vector3f>
+    "velRandom"    -> paramValue as Pair<Vector3f, Vector3f>
+    "forceFields"  -> paramValue as Array<ForceField>
+    "gravity"      -> paramValue as Vector3f
+    "drag"         -> paramValue as Float
+    "minVel"       -> paramValue as Float
+    "lifeTime"     -> paramValue as Pair<Int, Int>
+    else           -> null
+  }
+
+  if (value == null) { return Pair(params, false) }
+
+  val newParams = params.copy()
+
+  when (paramName) {
+    "shape"        -> newParams.shape        = value as SpawningShape?
+    "blockCurve"   -> newParams.blockCurve   = value as Array<String>
+    "rotRandom"    -> newParams.rotRandom    = value as Pair<Vector3f, Vector3f>
+    "rotVelRandom" -> newParams.rotVelRandom = value as Pair<Vector3f, Vector3f>
+    "rotVelCurve"  -> newParams.rotVelCurve  = value as Array<Vector3f>
+    "sizeRandom"   -> newParams.sizeRandom   = value as Pair<Vector3f, Vector3f>
+    "uniformSize"  -> newParams.uniformSize  = value as Boolean
+    "sizeCurve"    -> newParams.sizeCurve    = value as Array<Vector3f>
+    "velRandom"    -> newParams.velRandom    = value as Pair<Vector3f, Vector3f>
+    "forceFields"  -> newParams.forceFields  = value as Array<ForceField>
+    "gravity"      -> newParams.gravity      = value as Vector3f
+    "drag"         -> newParams.drag         = value as Float
+    "minVel"       -> newParams.minVel       = value as Float
+    "lifeTime"     -> newParams.lifeTime     = value as Pair<Int, Int>
+    else           -> return Pair(params, false)
+  }
+
+  return Pair(newParams, true)
+}

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/ParticleParams.kt

@@ -1,4 +1,4 @@
-package com.bytedice.bde_particles.particle
+package com.bytedice.bde_particles.particleIdRegister
 
 import org.joml.Vector3f
 
@@ -21,20 +21,20 @@ import org.joml.Vector3f
  * @param lifeTime A range for the particle's lifetime in ticks. A value below 1 will result in the particle not spawning.
  */
 data class ParticleParams (
-  val shape:        SpawningShape?           = SpawningShape.Circle(3.0f),
+  var shape:        SpawningShape?           = SpawningShape.Circle(3.0f),
-  val blockCurve:   Array<String>            = arrayOf("minecraft:shroomlight", "minecraft:orange_concrete", "minecraft:orange_stained_glass", "minecraft:gray_stained_glass", "minecraft:light_gray_stained_glass"),
+  var blockCurve:   Array<String>            = arrayOf("minecraft:shroomlight", "minecraft:orange_concrete", "minecraft:orange_stained_glass", "minecraft:gray_stained_glass", "minecraft:light_gray_stained_glass"),
-  val rotRandom:    Pair<Vector3f, Vector3f> = Pair(Vector3f(0.0f, 0.0f, 0.0f), Vector3f(360.0f, 360.0f, 360.0f)),
+  var rotRandom:    Pair<Vector3f, Vector3f> = Pair(Vector3f(0.0f, 0.0f, 0.0f), Vector3f(360.0f, 360.0f, 360.0f)),
-  val rotVelRandom: Pair<Vector3f, Vector3f> = Pair(Vector3f(-0.2f, -0.2f, -0.2f), Vector3f(0.2f, 0.2f, 0.2f)),
+  var rotVelRandom: Pair<Vector3f, Vector3f> = Pair(Vector3f(-0.2f, -0.2f, -0.2f), Vector3f(0.2f, 0.2f, 0.2f)),
-  val rotVelCurve:  Array<Vector3f>          = arrayOf(Vector3f(1.0f, 1.0f, 1.0f), Vector3f(0.0f, 0.0f, 0.0f)),
+  var rotVelCurve:  Array<Vector3f>          = arrayOf(Vector3f(1.0f, 1.0f, 1.0f), Vector3f(0.0f, 0.0f, 0.0f)),
-  val sizeRandom:   Pair<Vector3f, Vector3f> = Pair(Vector3f(0.5f, 0.5f, 0.5f), Vector3f(1.0f, 1.0f, 1.0f)),
+  var sizeRandom:   Pair<Vector3f, Vector3f> = Pair(Vector3f(0.5f, 0.5f, 0.5f), Vector3f(1.0f, 1.0f, 1.0f)),
-  val uniformSize:  Boolean                  = true,
+  var uniformSize:  Boolean                  = true,
-  val sizeCurve:    Array<Vector3f>          = arrayOf(Vector3f(1.0f, 1.0f, 1.0f), Vector3f(0.5f, 0.5f, 0.5f)),
+  var sizeCurve:    Array<Vector3f>          = arrayOf(Vector3f(1.0f, 1.0f, 1.0f), Vector3f(0.5f, 0.5f, 0.5f)),
-  val velRandom:    Pair<Vector3f, Vector3f> = Pair(Vector3f(-0.1f, 0.4f, -0.1f), Vector3f(0.1f, 0.8f, 0.1f)),
+  var velRandom:    Pair<Vector3f, Vector3f> = Pair(Vector3f(-0.1f, 0.4f, -0.1f), Vector3f(0.1f, 0.8f, 0.1f)),
-  val forceFields:  Array<ForceField>        = arrayOf(ForceField()), // emptyArray(),
+  var forceFields:  Array<ForceField>        = arrayOf(ForceField()), // emptyArray(),
-  val gravity:      Vector3f                 = Vector3f(0.0f, -0.01f, 0.0f),
+  var gravity:      Vector3f                 = Vector3f(0.0f, -0.01f, 0.0f),
-  val drag:         Float                    = 0.075f,
+  var drag:         Float                    = 0.075f,
-  val minVel:       Float                    = 0.0f,
+  var minVel:       Float                    = 0.0f,
-  val lifeTime:     Pair<Int, Int>           = Pair(15, 45)
+  var lifeTime:     Pair<Int, Int>           = Pair(15, 45)
 ) {
   companion object Presets {
     val DEFAULT = ParticleParams()

src/main/kotlin/com/bytedice/bde_particles/particleIdRegister/Shapes.kt

@@ -1,4 +1,4 @@
-package com.bytedice.bde_particles.particle
+package com.bytedice.bde_particles.particleIdRegister
 
 import org.joml.Vector2f
 import org.joml.Vector3f