diff --git a/build.gradle.kts b/build.gradle.kts
index 42a664f..2b60f01 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -6,7 +6,7 @@ plugins {
 }
 
 group = "dev.adamko.kafkatorio"
-version = "0.1.7"
+version = "0.2.0"
 
 val licenseFile: RegularFile by extra(layout.projectDirectory.file("LICENSE"))
 
diff --git a/modules/events-mod/build.gradle.kts b/modules/events-mod/build.gradle.kts
index 12719aa..12fee4b 100644
--- a/modules/events-mod/build.gradle.kts
+++ b/modules/events-mod/build.gradle.kts
@@ -10,7 +10,7 @@ import org.jetbrains.kotlin.util.parseSpaceSeparatedArgs
 
 plugins {
   idea
-  id("dev.adamko.kafkatorio.lang.node")
+  dev.adamko.kafkatorio.lang.node
   distribution
 }
 
@@ -60,7 +60,7 @@ val typescriptToLua by tasks.registering(NpmTask::class) {
   description = "Convert Typescript To Lua"
   group = project.name
 
-  dependsOn(tasks.npmInstall, installEventsTsSchema)
+  dependsOn(tasks.npmInstall, installEventsTsSchema, tasks.updatePackageJson)
 
   execOverrides { standardOutput = System.out }
 
@@ -214,5 +214,3 @@ tasks.assemble { dependsOn(installEventsTsSchema, tasks.updatePackageJson) }
 //      }
 //    }
 //  }
-
-tasks.npmInstall
diff --git a/modules/events-mod/src/main/typescript/control.ts b/modules/events-mod/src/main/typescript/control.ts
index e0064ea..5448f13 100644
--- a/modules/events-mod/src/main/typescript/control.ts
+++ b/modules/events-mod/src/main/typescript/control.ts
@@ -1,8 +1,5 @@
-import {emitTiles} from "./prototypes/emitPrototypes";
+import {handleConfigurationUpdate} from "./main/config-update/handleConfigurationUpdate";
 
 require("events")
 
-// on startup, push out prototypes
-script.on_configuration_changed((e: ConfigurationChangedData) => {
-  emitTiles()
-})
+script.on_configuration_changed(handleConfigurationUpdate)
diff --git a/modules/events-mod/src/main/typescript/events/emitter.ts b/modules/events-mod/src/main/typescript/events/emitter.ts
index 8613fae..28a8f8e 100644
--- a/modules/events-mod/src/main/typescript/events/emitter.ts
+++ b/modules/events-mod/src/main/typescript/events/emitter.ts
@@ -9,9 +9,8 @@ export function emitEvent<T extends FactorioObjectData>(eventData: T, tick: uint
 
   let event: FactorioEvent<T> = {
     data: eventData,
-    event_type: eventType,
-    mod_version: MOD_VERSION,
-    factorio_version: FACTORIO_VERSION,
+    eventType: eventType,
+    modVersion: MOD_VERSION,
     tick: tick
   }
 
diff --git a/modules/events-mod/src/main/typescript/events/handlers.ts b/modules/events-mod/src/main/typescript/events/handlers.ts
index e2ec935..0bcf505 100644
--- a/modules/events-mod/src/main/typescript/events/handlers.ts
+++ b/modules/events-mod/src/main/typescript/events/handlers.ts
@@ -50,10 +50,12 @@ export function handleConsoleChat(
 
 const CHUNK_SIZE = 32
 
-export function handleChunkUpdate(tick: uint,
-                                  eventType: string,
-                                  surfaceIndex: uint,
-                                  position: ChunkPosition) {
+export function handleChunkUpdate(
+    tick: uint,
+    eventType: string,
+    surfaceIndex: uint,
+    position: ChunkPosition
+) {
 
   let surface = game.get_surface(surfaceIndex)
 
@@ -69,14 +71,13 @@ export function handleChunkUpdate(tick: uint,
 
   let tilePositionMap = new Map<PositionData, FactorioTile>();
   for (let tile of tiles) {
-    let position = Serdes.positionTableToTable(tile.position)
+    let position = Serdes.convertMapPosition(tile.position)
     tilePositionMap.set(position, Serdes.convertTile(tile))
   }
   let mapChunk: FactorioTilesMap = {
-    object_name: "FactorioTilesMap",
+    objectName: "FactorioTilesMap",
     tiles: tilePositionMap,
   }
 
   emitEvent(mapChunk, tick, eventType)
-
 }
diff --git a/modules/events-mod/src/main/typescript/events/serdes.ts b/modules/events-mod/src/main/typescript/events/serdes.ts
index 3394ba6..4eb7e42 100644
--- a/modules/events-mod/src/main/typescript/events/serdes.ts
+++ b/modules/events-mod/src/main/typescript/events/serdes.ts
@@ -3,15 +3,15 @@ export namespace Serdes {
   export function playerToTable(player: LuaPlayer): PlayerData {
     let charIds = entitiesToUnitNumbers(player.get_associated_characters())
     return {
-      object_name: player.object_name,
+      objectName: player.object_name,
 
       name: player.name,
-      character_unit_number: player.character?.unit_number ?? null,
-      associated_characters_unit_numbers: charIds,
-      position: positionTableToTable(player.position),
+      characterUnitNumber: player.character?.unit_number ?? null,
+      associatedCharactersUnitNumbers: charIds,
+      position: convertMapPosition(player.position),
       colour: mapColour(player.color),
-      chat_colour: mapColour(player.chat_color),
-      last_online: player.last_online
+      chatColour: mapColour(player.chat_color),
+      lastOnline: player.last_online
     }
   }
 
@@ -20,20 +20,20 @@ export namespace Serdes {
     let player: LuaPlayer | null = entity.is_player() ? entity.player!! : null
 
     return {
-      object_name: entity.object_name,
+      objectName: entity.object_name,
 
       // entity data
       name: entity.name,
       type: entity.type,
       active: entity.active,
       health: entity.health ?? null,
-      health_ratio: entity.get_health_ratio(),
-      surface_index: entity.surface.index,
-      unit_number: entity.unit_number ?? null,
-      position: positionTableToTable(entity.position),
+      healthRatio: entity.get_health_ratio(),
+      surfaceIndex: entity.surface.index,
+      unitNumber: entity.unit_number ?? null,
+      position: convertMapPosition(entity.position),
 
       // player data
-      player_index: player?.index ?? null
+      playerIndex: player?.index ?? null
     }
   }
 
@@ -49,7 +49,7 @@ export namespace Serdes {
 
   export function surfaceToTable(surface: LuaSurface): SurfaceData {
     return {
-      object_name: surface.object_name,
+      objectName: surface.object_name,
 
       name: surface.name,
       index: surface.index,
@@ -57,10 +57,11 @@ export namespace Serdes {
     }
   }
 
-  export function positionTableToTable(positionTable: PositionTable): PositionData {
+  export function convertMapPosition(mapPos: MapPositionTable): PositionData {
     return {
-      x: positionTable.x,
-      y: positionTable.y,
+      type: "MAP",
+      x: mapPos.x,
+      y: mapPos.y,
     }
   }
 
@@ -75,20 +76,20 @@ export namespace Serdes {
 
   export function consoleChat(content: string, playerIndex?: uint): ConsoleChatMessage {
     return {
-      object_name: "ConsoleChatMessage",
+      objectName: "ConsoleChatMessage",
 
-      author_player_index: playerIndex ?? null,
+      authorPlayerIndex: playerIndex ?? null,
       content: content
     }
   }
 
   export function convertTile(tile: LuaTile): FactorioTile {
     return {
-      object_name: tile.object_name,
+      objectName: tile.object_name,
 
-      position: tile.position,
-      prototype_name: tile.prototype.name,
-      surface_index: tile.surface.index
+      position: convertMapPosition(tile.position),
+      prototypeName: tile.prototype.name,
+      surfaceIndex: tile.surface.index
     }
   }
 
diff --git a/modules/events-mod/src/main/typescript/main/config-update/handleConfigurationUpdate.ts b/modules/events-mod/src/main/typescript/main/config-update/handleConfigurationUpdate.ts
new file mode 100644
index 0000000..1ea1d0e
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/main/config-update/handleConfigurationUpdate.ts
@@ -0,0 +1,43 @@
+import {emitPacket} from "../emitKafkatorioPacket";
+import {convertPrototypes} from "../../prototypes/emitPrototypes";
+
+export function handleConfigurationUpdate(changeData: ConfigurationChangedData) {
+
+  emitPacket<FactorioConfigurationUpdate>({
+    modVersion: global.MOD_VERSION,
+    allMods: allMods(changeData),
+    factorioData: factorioData(changeData),
+    prototypes: convertPrototypes()
+  })
+
+}
+
+function factorioData(changeData: ConfigurationChangedData): FactorioGameDataUpdate {
+  return {
+    oldVersion: changeData.old_version ?? null,
+    newVersion: changeData.new_version ?? null,
+  }
+}
+
+function allMods(e: ConfigurationChangedData): FactorioModInfo[] {
+
+  let namesOfChangedMods: string[] = Object.keys(e.mod_changes)
+  let namesOfCurrentMods: string[] = Object.keys(script.active_mods)
+
+  let modNames = [...new Set<string>(
+      namesOfChangedMods.concat(namesOfCurrentMods)
+  )]
+
+  return modNames.map((modName) => {
+
+    let currentVer = script.active_mods[modName] ?? e.mod_changes[modName].new_version
+    let previousVer = e.mod_changes[modName].old_version
+
+    return <FactorioModInfo>{
+      modName: modName,
+      currentVersion: currentVer,
+      previousVersion: previousVer,
+    }
+  })
+
+}
diff --git a/modules/events-mod/src/main/typescript/main/config-update/updateGlobal.ts b/modules/events-mod/src/main/typescript/main/config-update/updateGlobal.ts
new file mode 100644
index 0000000..db1e621
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/main/config-update/updateGlobal.ts
@@ -0,0 +1,4 @@
+export function updateGlobal() {
+  global.MOD_VERSION = script.active_mods[script.mod_name][1]
+  global.FACTORIO_VERSION = script.active_mods["base"][1]
+}
diff --git a/modules/events-mod/src/main/typescript/main/emitKafkatorioPacket.ts b/modules/events-mod/src/main/typescript/main/emitKafkatorioPacket.ts
new file mode 100644
index 0000000..c86af5d
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/main/emitKafkatorioPacket.ts
@@ -0,0 +1,6 @@
+/** Emit a serialised KafkatorioPacket */
+export function emitPacket<T extends KafkatorioPacket>(packet: T) {
+  let data = game.table_to_json(packet)
+  localised_print(`KafkatorioPacket: ${data}`)
+  // rcon.print(`KafkatorioPacket: ${data}`)
+}
diff --git a/modules/events-mod/src/main/typescript/main/global.d.ts b/modules/events-mod/src/main/typescript/main/global.d.ts
new file mode 100644
index 0000000..7a73643
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/main/global.d.ts
@@ -0,0 +1,4 @@
+declare const global: {
+  MOD_VERSION: string
+  FACTORIO_VERSION: string
+}
diff --git a/modules/events-mod/src/main/typescript/package-lock.json b/modules/events-mod/src/main/typescript/package-lock.json
index 4fe36f3..e30a5b3 100644
--- a/modules/events-mod/src/main/typescript/package-lock.json
+++ b/modules/events-mod/src/main/typescript/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "kafkatorio-events-mod",
-  "version": "0.1.7",
+  "version": "0.2.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/modules/events-mod/src/main/typescript/package.json b/modules/events-mod/src/main/typescript/package.json
index 5fd898c..e708d32 100644
--- a/modules/events-mod/src/main/typescript/package.json
+++ b/modules/events-mod/src/main/typescript/package.json
@@ -1,6 +1,6 @@
 {
   "name": "kafkatorio-events-mod",
-  "version": "0.1.7",
+  "version": "0.2.0",
   "private": true,
   "scripts": {
     "build": "tstl",
diff --git a/modules/events-mod/src/main/typescript/prototypes/emitPrototypes.ts b/modules/events-mod/src/main/typescript/prototypes/emitPrototypes.ts
index 44aa893..2099e3e 100644
--- a/modules/events-mod/src/main/typescript/prototypes/emitPrototypes.ts
+++ b/modules/events-mod/src/main/typescript/prototypes/emitPrototypes.ts
@@ -1,42 +1,36 @@
 import {Serdes} from "../events/serdes";
 
-export function emitTiles() {
+export function convertPrototypes (): FactorioPrototype[] {
+  let prototypes = new Array<FactorioPrototype>()
 
-  let tilePrototypes = new LuaTable<string, FactorioMapTilePrototype>()
+  prototypes.push(...getMapTilePrototypes())
 
-  for (const [_, tile] of pairs(game.tile_prototypes)) {
-    // let ttttt = game.tile_prototypes[tileName]
-    tilePrototypes.set(tile.name, mapTilePrototype(tile))
+  return prototypes
+}
+
+function getMapTilePrototypes(): FactorioMapTilePrototype[] {
+  let tiles: FactorioMapTilePrototype[] = []
+  for (let [_, tile] of pairs(game.tile_prototypes)) {
+    tiles.push(
+        <FactorioMapTilePrototype>{
+          objectName: tile.object_name,
+
+          name: tile.name,
+          order: tile.order,
+          layer: tile.layer,
+          collisionMasks: convertCollisionMaskToNames(tile.collision_mask),
+          mapColor: Serdes.mapColour(tile.map_color),
+          canBeMined: tile.mineable_properties.minable,
+        }
+    )
   }
-
-  // for (let tileName in game.tile_prototypes) {
-  //   const tile = game.tile_prototypes[tileName]
-  //   tilePrototypes.set(tileName, mapTilePrototype(tile))
-  // }
-
-  // for (const [id, player] of pairs(game.players)) {
-  //   const num: number = id
-  //   const p: LuaPlayer = player
-  // }
-  emitPrototypes(tilePrototypes)
+  return tiles
 }
 
-function mapTilePrototype(tile: LuaTilePrototype): FactorioMapTilePrototype {
-  return {
-    object_name: tile.object_name,
-
-    name: tile.name,
-    order: tile.order,
-    layer: tile.layer,
-    collision_masks: [],
-    map_color: Serdes.mapColour(tile.map_color),
-    can_be_mined: tile.mineable_properties.minable,
+function convertCollisionMaskToNames(cm: CollisionMask): string[] {
+  let masks: string[] = []
+  for (let [name, _] of pairs(cm)) {
+    masks.push(name)
   }
-}
-
-function emitPrototypes<T extends FactorioPrototype>(prototypes: LuaTable<string, T>) {
-
-  let data = game.table_to_json(prototypes)
-
-  localised_print(`FactorioPrototype: ${data}`)
+  return masks
 }
diff --git a/modules/events-mod/src/main/typescript/schema/config-update.d.ts b/modules/events-mod/src/main/typescript/schema/config-update.d.ts
new file mode 100644
index 0000000..1f8e37a
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/schema/config-update.d.ts
@@ -0,0 +1,19 @@
+// Generated by TypeScriptGenerator - do not edit this file manually
+
+interface FactorioModInfo {
+  currentVersion: string | null;
+  modName: string;
+  previousVersion: string | null;
+}
+
+interface FactorioGameDataUpdate {
+  newVersion: string | null;
+  oldVersion: string | null;
+}
+
+interface FactorioConfigurationUpdate extends KafkatorioPacket {
+  allMods: FactorioModInfo[];
+  factorioData: FactorioGameDataUpdate;
+  modVersion: string;
+  prototypes: FactorioPrototype[];
+}
diff --git a/modules/events-mod/src/main/typescript/schema/events-schema.ts b/modules/events-mod/src/main/typescript/schema/events-schema.ts
deleted file mode 100644
index 24d67a3..0000000
--- a/modules/events-mod/src/main/typescript/schema/events-schema.ts
+++ /dev/null
@@ -1,92 +0,0 @@
-// Generated by TypeScriptGenerator - do not edit this file manually
-interface FactorioObjectData {
-    object_name: string;
-}
-
-interface FactorioEvent<T extends FactorioObjectData> {
-    data: T;
-    event_type: string;
-    factorio_version: string;
-    mod_version: string;
-    tick: uint;
-}
-
-interface Colour {
-    alpha: float;
-    blue: float;
-    green: float;
-    red: float;
-}
-
-interface PositionData {
-    x: double;
-    y: double;
-}
-
-interface PlayerData extends FactorioObjectData {
-    associated_characters_unit_numbers: uint[];
-    character_unit_number: uint | null;
-    chat_colour: Colour;
-    colour: Colour;
-    last_online: uint;
-    name: string;
-    object_name: string;
-    position: PositionData;
-}
-
-interface EntityData extends FactorioObjectData {
-    active: boolean;
-    health: double | null;
-    health_ratio: double;
-    name: string;
-    object_name: string;
-    player_index: uint | null;
-    position: PositionData;
-    surface_index: int;
-    type: string;
-    unit_number: uint | null;
-}
-
-interface SurfaceData extends FactorioObjectData {
-    daytime: double;
-    index: uint;
-    name: string;
-    object_name: string;
-}
-
-interface ConsoleChatMessage extends FactorioObjectData {
-    author_player_index: uint | null;
-    content: string;
-    object_name: string;
-}
-
-interface FactorioTile extends FactorioObjectData {
-    object_name: string;
-    position: PositionData;
-    prototype_name: string;
-    surface_index: int;
-}
-
-interface FactorioTilesMap extends FactorioObjectData {
-    object_name: string;
-    tiles: Map<PositionData, FactorioTile>;
-}
-
-interface FactorioTiles extends FactorioObjectData {
-    object_name: string;
-    tiles: FactorioTile[];
-}
-
-interface FactorioPrototype {
-    object_name: string;
-}
-
-interface FactorioMapTilePrototype extends FactorioPrototype {
-    can_be_mined: boolean;
-    collision_masks: string[];
-    layer: uint;
-    map_color: Colour;
-    name: string;
-    object_name: string;
-    order: string;
-}
\ No newline at end of file
diff --git a/modules/events-mod/src/main/typescript/schema/object-data.d.ts b/modules/events-mod/src/main/typescript/schema/object-data.d.ts
new file mode 100644
index 0000000..612b721
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/schema/object-data.d.ts
@@ -0,0 +1,61 @@
+// Generated by TypeScriptGenerator - do not edit this file manually
+
+interface FactorioObjectData {
+  objectName: string;
+}
+
+interface FactorioEvent<T extends FactorioObjectData> extends KafkatorioPacket {
+  data: T;
+  eventType: string;
+  modVersion: string;
+  tick: uint;
+}
+
+interface PlayerData extends FactorioObjectData {
+  associatedCharactersUnitNumbers: uint[];
+  characterUnitNumber: uint | null;
+  chatColour: Colour;
+  colour: Colour;
+  lastOnline: uint;
+  name: string;
+  objectName: string;
+  position: PositionData;
+}
+
+interface EntityData extends FactorioObjectData {
+  active: boolean;
+  health: double | null;
+  healthRatio: double;
+  name: string;
+  objectName: string;
+  playerIndex: uint | null;
+  position: PositionData;
+  surfaceIndex: int;
+  type: string;
+  unitNumber: uint | null;
+}
+
+interface SurfaceData extends FactorioObjectData {
+  daytime: double;
+  index: uint;
+  name: string;
+  objectName: string;
+}
+
+interface FactorioTile extends FactorioObjectData {
+  objectName: string;
+  position: PositionData;
+  prototypeName: string;
+  surfaceIndex: int;
+}
+
+interface FactorioTilesMap extends FactorioObjectData {
+  objectName: string;
+  tiles: Map<PositionData, FactorioTile>;
+}
+
+interface ConsoleChatMessage extends FactorioObjectData {
+  authorPlayerIndex: uint | null;
+  content: string;
+  objectName: string;
+}
diff --git a/modules/events-mod/src/main/typescript/schema/prototype.d.ts b/modules/events-mod/src/main/typescript/schema/prototype.d.ts
new file mode 100644
index 0000000..f1d2052
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/schema/prototype.d.ts
@@ -0,0 +1,20 @@
+// Generated by TypeScriptGenerator - do not edit this file manually
+
+interface FactorioPrototype {
+  objectName: string;
+}
+
+interface FactorioPrototypes<T extends FactorioPrototype> extends KafkatorioPacket {
+  modVersion: string;
+  prototypes: T[];
+}
+
+interface FactorioMapTilePrototype extends FactorioPrototype {
+  canBeMined: boolean;
+  collisionMasks: string[];
+  layer: uint;
+  mapColor: Colour;
+  name: string;
+  objectName: string;
+  order: string;
+}
diff --git a/modules/events-mod/src/main/typescript/schema/schema.d.ts b/modules/events-mod/src/main/typescript/schema/schema.d.ts
new file mode 100644
index 0000000..9738c8c
--- /dev/null
+++ b/modules/events-mod/src/main/typescript/schema/schema.d.ts
@@ -0,0 +1,20 @@
+// Generated by TypeScriptGenerator - do not edit this file manually
+
+interface KafkatorioPacket {
+  modVersion: string;
+}
+
+interface Colour {
+  alpha: float;
+  blue: float;
+  green: float;
+  red: float;
+}
+
+type PositionType = "MAP" | "CHUNK" | "TILE";
+
+interface PositionData {
+  type: PositionType | null;
+  x: double;
+  y: double;
+}
diff --git a/modules/events-schema/build.gradle.kts b/modules/events-schema/build.gradle.kts
index efe3409..b19af7d 100644
--- a/modules/events-schema/build.gradle.kts
+++ b/modules/events-schema/build.gradle.kts
@@ -80,8 +80,8 @@ val generateTypescript by tasks.registering(JavaExec::class) {
 
   mainClass.set("dev.adamko.kafkatorio.events.schema.Kt2tsKt")
 
-  val generatedFile = file("$temporaryDir/${project.name}.ts")
-  args(generatedFile)
+  val tempOutputDirectory = file("$temporaryDir")
+  args(tempOutputDirectory)
 
   val buildOutput = layout.buildDirectory.dir("generated/typescript")
   outputs.dir(buildOutput)
diff --git a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioCommonData.kt b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioCommonData.kt
new file mode 100644
index 0000000..191e215
--- /dev/null
+++ b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioCommonData.kt
@@ -0,0 +1,50 @@
+package dev.adamko.kafkatorio.events.schema
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class PositionData(
+  val x: Double,
+  val y: Double,
+  val type: PositionType?,
+)
+
+@Serializable
+enum class PositionType {
+  MAP, CHUNK, TILE,
+}
+
+/**
+ * Red, green, blue and alpha values, all in range `[0, 1]` or all in range `[0, 255]` if any
+ * value is > 1.
+ *
+ * All values here are optional. Color channels default to 0, the alpha channel defaults to 1.
+ */
+@Serializable
+data class Colour(
+  val red: Float = 0f,
+  val green: Float = 0f,
+  val blue: Float = 0f,
+  val alpha: Float = 1f,
+) {
+  /** True if any value is greater than 1, so the values are hexadecimal. */
+  fun isDecimal(): Boolean {
+    return red > 1f
+        || green > 1f
+        || blue > 1f
+        || alpha > 1f
+  }
+
+  /** True if all values are between `[0..1]`. */
+  fun isPercentage(): Boolean = !isDecimal()
+
+}
+
+//@Serializable
+//@SerialName("FactorioTiles")
+//data class FactorioTiles(
+//  val tiles: List<FactorioTile>,
+//) : FactorioObjectData() {
+//  @Transient
+//  override val objectName: String = "FactorioTiles"
+//}
diff --git a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioConfiguration.kt b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioConfiguration.kt
new file mode 100644
index 0000000..a3c829f
--- /dev/null
+++ b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioConfiguration.kt
@@ -0,0 +1,25 @@
+package dev.adamko.kafkatorio.events.schema
+
+import kotlinx.serialization.Serializable
+
+
+@Serializable
+data class FactorioConfigurationUpdate(
+  override val modVersion: String,
+  val factorioData: FactorioGameDataUpdate,
+  val allMods: List<FactorioModInfo>,
+  val prototypes: List<FactorioPrototype>,
+) : KafkatorioPacket
+
+@Serializable
+data class FactorioGameDataUpdate(
+  val oldVersion: String?,
+  val newVersion: String?,
+)
+
+@Serializable
+data class FactorioModInfo(
+  val modName: String,
+  val currentVersion: String?,
+  val previousVersion: String?,
+)
diff --git a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioEvents.kt b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioEvents.kt
index 746352d..15eef33 100644
--- a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioEvents.kt
+++ b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioEvents.kt
@@ -1,192 +1,16 @@
 package dev.adamko.kafkatorio.events.schema
 
 
-import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
-import kotlinx.serialization.Transient
-import kotlinx.serialization.json.JsonClassDiscriminator
 
 
-//@Serializable(with = FactorioEventSerializer::class)
 @Serializable
 data class FactorioEvent<out T : FactorioObjectData>(
+  override val modVersion: String,
+
   /** the initial Factorio event ({defines.events}) trigger */
-  @SerialName("event_type")
   val eventType: String,
-  /** Schema versioning */
-  @SerialName("mod_version")
-  val modVersion: String,
-  @SerialName("factorio_version")
-  val factorioVersion: String,
   /** game time */
-  @SerialName("tick")
   val tick: UInt,
-  @SerialName("data")
-  val data: T
-)
-
-
-/** The [JsonClassDiscriminator] for [FactorioEvent] */
-const val FactorioObjectDataDiscriminatorKey: String = "object_name"
-
-
-@Serializable
-@JsonClassDiscriminator(FactorioObjectDataDiscriminatorKey)
-sealed class FactorioObjectData {
-
-  abstract val objectName: String
-
-  // workaround - https://github.com/Kotlin/kotlinx.serialization/issues/1664
-//  val objectName: String by lazy {
-//    serializer().descriptor.serialName
-//  }
-
-//  val objectName: String by lazy {
-//    kotlinx.serialization.serializer(this::class.starProjectedType).descriptor.serialName
-//  }
-
-  // alternative: find the @SerialName annotation
-  // Again it must be delegated so there's no backing field and kxs ignores it
-//  val objectName: String by lazy {
-//    requireNotNull(this::class.findAnnotation<SerialName>()?.value) {
-//      "Couldn't find @SerialName for ${this::class}!"
-//    }
-//  }
-}
-
-@Serializable
-@SerialName("LuaPlayer")
-data class PlayerData(
-  @Serializable(with = ListAsObjectSerializer::class)
-  @SerialName("associated_characters_unit_numbers")
-  val associatedCharactersUnitNumbers: List<UInt>,
-  @SerialName("character_unit_number")
-  val characterUnitNumber: UInt?,
-  @SerialName("name")
-  val name: String,
-  @SerialName("position")
-  val position: PositionData,
-  @SerialName("colour")
-  val colour: Colour,
-  @SerialName("chat_colour")
-  val chatColour: Colour,
-  @SerialName("last_online")
-  val lastOnline: UInt,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "LuaPlayer"
-}
-
-@Serializable
-@SerialName("LuaEntity")
-data class EntityData(
-  @SerialName("active")
-  val active: Boolean,
-  @SerialName("health")
-  val health: Double?,
-  @SerialName("health_ratio")
-  val healthRatio: Double,
-  @SerialName("name")
-  val name: String,
-  @SerialName("position")
-  val position: PositionData,
-  @SerialName("surface_index")
-  val surfaceIndex: Int,
-  @SerialName("type")
-  val type: String,
-  @SerialName("unit_number")
-  val unitNumber: UInt? = null,
-
-  @SerialName("player_index")
-  val playerIndex: UInt? = null,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "LuaEntity"
-}
-
-@Serializable
-@SerialName("LuaSurface")
-data class SurfaceData(
-  @SerialName("daytime")
-  val daytime: Double,
-  @SerialName("index")
-  val index: UInt,
-  @SerialName("name")
-  val name: String,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "LuaSurface"
-}
-
-@Serializable
-data class PositionData(
-  val x: Double,
-  val y: Double,
-)
-
-/**
- * Red, green, blue and alpha values, all in range `[0, 1]` or all in range `[0, 255]` if any
- * value is > 1.
- *
- * All values here are optional. Color channels default to 0, the alpha channel defaults to 1.
- */
-@Serializable
-data class Colour(
-  val red: Float = 0f,
-  val green: Float = 0f,
-  val blue: Float = 0f,
-  val alpha: Float = 1f,
-) {
-  /** True if any value is greater than 1, so the values are hexadecimal. */
-  fun isDecimal(): Boolean {
-    return red > 1f
-        || green > 1f
-        || blue > 1f
-        || alpha > 1f
-  }
-
-  /** True if all values are between `[0..1]`. */
-  fun isPercentage(): Boolean = !isDecimal()
-
-}
-
-@Serializable
-data class ConsoleChatMessage(
-  @SerialName("author_player_index")
-  val authorPlayerIndex: UInt?,
-  val content: String,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "ConsoleChatMessage"
-}
-
-@Serializable
-@SerialName("FactorioTilesMap")
-data class FactorioTilesMap(
-  val tiles: Map<PositionData, FactorioTile>,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "FactorioTilesMap"
-}
-
-
-@Serializable
-@SerialName("FactorioTiles")
-data class FactorioTiles(
-  val tiles: List<FactorioTile>,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "FactorioTiles"
-}
-
-
-@Serializable
-@SerialName("LuaTile")
-data class FactorioTile(
-  val prototypeName: String,
-  val position: PositionData,
-  val surfaceIndex: Int,
-) : FactorioObjectData() {
-  @Transient
-  override val objectName: String = "LuaTile"
-}
+  val data: T,
+) : KafkatorioPacket
diff --git a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioLuaObjects.kt b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioLuaObjects.kt
new file mode 100644
index 0000000..0ab2686
--- /dev/null
+++ b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioLuaObjects.kt
@@ -0,0 +1,108 @@
+package dev.adamko.kafkatorio.events.schema
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+import kotlinx.serialization.Transient
+import kotlinx.serialization.json.JsonClassDiscriminator
+
+@Serializable
+@JsonClassDiscriminator(FactorioObjectData.discriminatorKey)
+sealed class FactorioObjectData {
+
+  abstract val objectName: String
+
+  // workaround - https://github.com/Kotlin/kotlinx.serialization/issues/1664
+//  val objectName: String by lazy {
+//    serializer().descriptor.serialName
+//  }
+
+//  val objectName: String by lazy {
+//    kotlinx.serialization.serializer(this::class.starProjectedType).descriptor.serialName
+//  }
+
+  // alternative: find the @SerialName annotation
+  // Again it must be delegated so there's no backing field and kxs ignores it
+//  val objectName: String by lazy {
+//    requireNotNull(this::class.findAnnotation<SerialName>()?.value) {
+//      "Couldn't find @SerialName for ${this::class}!"
+//    }
+//  }
+
+  companion object {
+    /** The [JsonClassDiscriminator] for [FactorioEvent] */
+    const val discriminatorKey: String = "objectName"
+  }
+}
+
+@Serializable
+@SerialName("LuaPlayer")
+data class PlayerData(
+  @Serializable(with = ListAsObjectSerializer::class)
+  val associatedCharactersUnitNumbers: List<UInt>,
+  val characterUnitNumber: UInt?,
+  val name: String,
+  val position: PositionData,
+  val colour: Colour,
+  val chatColour: Colour,
+  val lastOnline: UInt,
+) : FactorioObjectData() {
+  @Transient
+  override val objectName: String = "LuaPlayer"
+}
+
+@Serializable
+@SerialName("LuaEntity")
+data class EntityData(
+  val active: Boolean,
+  val health: Double?,
+  val healthRatio: Double,
+  val name: String,
+  val position: PositionData,
+  val surfaceIndex: Int,
+  val type: String,
+  val unitNumber: UInt? = null,
+  val playerIndex: UInt? = null,
+) : FactorioObjectData() {
+  @Transient
+  override val objectName: String = "LuaEntity"
+}
+
+@Serializable
+@SerialName("LuaSurface")
+data class SurfaceData(
+  val daytime: Double,
+  val index: UInt,
+  val name: String,
+) : FactorioObjectData() {
+  @Transient
+  override val objectName: String = "LuaSurface"
+}
+
+@Serializable
+@SerialName("FactorioTilesMap")
+data class FactorioTilesMap(
+  val tiles: Map<PositionData, FactorioTile>,
+) : FactorioObjectData() {
+  @Transient
+  override val objectName: String = "FactorioTilesMap"
+}
+
+@Serializable
+@SerialName("LuaTile")
+data class FactorioTile(
+  val prototypeName: String,
+  val position: PositionData,
+  val surfaceIndex: Int,
+) : FactorioObjectData() {
+  @Transient
+  override val objectName: String = "LuaTile"
+}
+
+@Serializable
+data class ConsoleChatMessage(
+  val authorPlayerIndex: UInt?,
+  val content: String,
+)  : FactorioObjectData() {
+  @Transient
+  override val objectName: String = "ConsoleChatMessage"
+}
diff --git a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioPrototypes.kt b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioPrototypes.kt
index 53aacb6..70404b9 100644
--- a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioPrototypes.kt
+++ b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/factorioPrototypes.kt
@@ -6,9 +6,19 @@ import kotlinx.serialization.Transient
 import kotlinx.serialization.json.JsonClassDiscriminator
 
 @Serializable
-@JsonClassDiscriminator(FactorioObjectDataDiscriminatorKey)
+class FactorioPrototypes<T : FactorioPrototype>(
+  override val modVersion: String,
+  val prototypes: List<T>,
+) : KafkatorioPacket
+
+@Serializable
+@JsonClassDiscriminator(FactorioPrototype.discriminatorKey)
 sealed class FactorioPrototype {
   abstract val objectName: String
+
+  companion object {
+    const val discriminatorKey: String = "objectName"
+  }
 }
 
 @Serializable
@@ -20,7 +30,7 @@ data class FactorioMapTilePrototype(
   val collisionMasks: List<String>,
   val order: String,
 
-  /** Is this tile mineable at all? */
+  /** Can the tile be mined for resources? */
   val canBeMined: Boolean,
 ) : FactorioPrototype() {
   @Transient
diff --git a/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/kafkatorioPacket.kt b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/kafkatorioPacket.kt
new file mode 100644
index 0000000..194f2c6
--- /dev/null
+++ b/modules/events-schema/src/commonMain/kotlin/dev/adamko/kafkatorio/events/schema/kafkatorioPacket.kt
@@ -0,0 +1,26 @@
+package dev.adamko.kafkatorio.events.schema;
+
+
+//@Serializable
+sealed interface KafkatorioPacket {
+  /** Schema versioning */
+  val modVersion: String
+}
+
+
+//enum class PacketDataType {
+//  EVENT, PROTOTYPE, CONFIG_DATA,
+//  ;
+//}
+
+
+//@Serializable
+//@JsonClassDiscriminator(KafkatorioPacketData.discriminatorKey)
+//sealed class KafkatorioPacketData(
+//  @SerialName(discriminatorKey)
+//  val dataType: PacketDataType
+//) {
+//  companion object {
+//    const val discriminatorKey: String = "dataType"
+//  }
+//}
diff --git a/modules/events-schema/src/jvmMain/kotlin/dev/adamko/kafkatorio/events/schema/kt2ts.kt b/modules/events-schema/src/jvmMain/kotlin/dev/adamko/kafkatorio/events/schema/kt2ts.kt
index 8bbbabf..c1b48ab 100644
--- a/modules/events-schema/src/jvmMain/kotlin/dev/adamko/kafkatorio/events/schema/kt2ts.kt
+++ b/modules/events-schema/src/jvmMain/kotlin/dev/adamko/kafkatorio/events/schema/kt2ts.kt
@@ -1,11 +1,8 @@
 package dev.adamko.kafkatorio.events.schema
 
-import java.io.File
-import kotlin.reflect.KClass
-import kotlin.reflect.KProperty
-import me.ntrrgc.tsGenerator.ClassTransformer
+import kotlin.io.path.Path
+import kotlin.io.path.createDirectories
 import me.ntrrgc.tsGenerator.TypeScriptGenerator
-import me.ntrrgc.tsGenerator.camelCaseToSnakeCase
 import org.intellij.lang.annotations.Language
 
 /**
@@ -15,9 +12,8 @@ fun main(args: Array<String>) {
 
   val gen =
     TypeScriptGenerator(
-      rootClasses =
-      buildSet {
-        add(FactorioEvent::class)
+      rootClasses = buildSet {
+        addAll(KafkatorioPacket::class.sealedSubclasses)
         addAll(FactorioObjectData::class.sealedSubclasses)
         addAll(FactorioPrototype::class.sealedSubclasses)
       },
@@ -33,7 +29,7 @@ fun main(args: Array<String>) {
         ULong::class to "uint64",
       ),
       classTransformers = listOf(
-        PropertyNameTransformer,
+//        PropertyNameTransformer,
       )
     )
 
@@ -44,29 +40,60 @@ fun main(args: Array<String>) {
       println(definitions)
     }
     else -> {
-      val out = File(filename)
-      out.parentFile.mkdirs()
-      out.printWriter().use {
-        it.print(header)
-        it.print(definitions)
-      }
-      println("Generated file: $out")
+
+      val outPath = Path(filename)
+      outPath.createDirectories()
+
+      splitDefinitions(definitions)
+        .forEach { (defFile, def) ->
+          val outFile = outPath.resolve(defFile).toFile()
+          outFile.printWriter().use {
+            it.print(header)
+            it.print(def)
+          }
+          println("Generated file: $outFile")
+        }
+
     }
   }
 }
 
+/** Split the TypeScript interfaces into different files */
+private fun splitDefinitions(definitions: String): Map<String, String> {
+  return definitions
+    .split("\n\n")
+    .groupBy { def ->
+      when {
+        "extends FactorioObjectData" in def ||
+            "interface FactorioObjectData" in def -> "object-data.d.ts"
+        "extends FactorioPrototype" in def ||
+            "interface FactorioPrototype" in def  -> "prototype.d.ts"
+        "extends FactorioConfigurationUpdate" in def ||
+            "interface FactorioConfigurationUpdate" in def ||
+            "FactorioGameDataUpdate" in def ||
+            "FactorioModInfo" in def              -> "config-update.d.ts"
+        else                                      -> "schema.d.ts"
+      }
+    }
+    .mapValues { (_, def) ->
+      def
+        .joinToString("\n\n", postfix = "\n")
+        .replace("    ", "  ")
+    }
+}
+
 @Language("TypeScript")
 val header = """
   |// Generated by TypeScriptGenerator - do not edit this file manually
   |
-""".trimMargin()
+""".trimMargin() + "\n"
 
-object PropertyNameTransformer : ClassTransformer {
-  override fun transformPropertyName(
-    propertyName: String,
-    property: KProperty<*>,
-    klass: KClass<*>
-  ): String {
-    return camelCaseToSnakeCase(propertyName)
-  }
-}
+//object PropertyNameTransformer : ClassTransformer {
+//  override fun transformPropertyName(
+//    propertyName: String,
+//    property: KProperty<*>,
+//    klass: KClass<*>
+//  ): String {
+//    return camelCaseToSnakeCase(propertyName)
+//  }
+//}