Bunch of config stuff + logging basics

src/main/kotlin/nl/kallestruik/darena/DArena.kt

@@ -11,22 +11,6 @@ class DArena : JavaPlugin() {
     private lateinit var pointsManager: PointsManager
     private lateinit var teamManager: TeamManager
 
-    // TODO:
-    // Thinking:
-    // - Datastructures for arenas
-    // - Datastructures for teams (Everyone is always in a team even when solo)
-    // - How will points work for teams/individuals
-    //      - Teams are always the same during one event
-    //      - Teams on the leaderboard
-    //      - Rotate teams each new game as an option
-    // Programing:
-    // - Loading arenas from config files
-    // - Commands to interact with the plugin
-    // - Custom world creation for arenas
-    // - Basic arena mechanics
-    // - Points system
-    // - Advanced arena mechanics (Special items like fireballs)
-
     override fun onEnable() {
         configManager = ConfigManager(File(dataFolder, "config.yml"))
         configManager.load()

src/main/kotlin/nl/kallestruik/darena/arenas/Arena.kt

@@ -11,7 +11,7 @@ class Arena(
     private val arenaUtil: ArenaUtil,
     private val plugin: JavaPlugin,
     private val world: ArenaWorld = ArenaWorld(config.name, plugin),
-    ) {
+) {
     private lateinit var session: ArenaSession
     // Simple stuff done: 0.001474s
     // createArena start: 0.0001026s
@@ -33,19 +33,25 @@ class Arena(
         session.spectators.addAll(arenaUtil.getPossibleSpectators());
         // Reset the world
         world.reset()
+
+
+
         // Place all spectators in the arena
         session.spectators.forEach {
 //            config.spectatorSpawn.spawn(world, it)
         }
 
         // Randomize spawns
-        session.spawns.addAll(config.spawns)
+        session.initialSpawns.addAll(config.spawns.filter {
-        session.spawns.shuffle()
+                                         //TODO: make this filter only spawns that meet the intitial spawn condidtions. Or just replace this whole method.
+                                         return@filter true
+                                     }.keys)
+        session.initialSpawns.shuffle()
 
         // Spawn all the players
         session.participants.forEachIndexed { index, player ->
             // TODO: Freeze players in place (for in arena countdown) (if countdown is 0 dont freeze them)
-            session.spawns[index % session.spawns.size].spawn(world, player)
+            config.spawns[session.initialSpawns[index % session.initialSpawns.size]]!!.spawn(world, player)
         }
         // TODO:
     }

src/main/kotlin/nl/kallestruik/darena/arenas/ArenaConfig.kt

@@ -1,44 +1,73 @@
 package nl.kallestruik.darena.arenas
 
 import nl.kallestruik.darena.types.arena.ArenaLoadout
-import nl.kallestruik.darena.types.arena.ArenaSpawn
 import nl.kallestruik.darena.types.arena.ArenaCheckpoint
 import nl.kallestruik.darena.types.arena.ArenaPoints
+import nl.kallestruik.darena.types.arena.ArenaSpawn
+import nl.kallestruik.darena.types.arena.ArenaSpawnRule
 import nl.kallestruik.darena.util.ConfigHelper
 import java.io.File
+import org.bukkit.configuration.InvalidConfigurationException
+import org.bukkit.configuration.file.YamlConfiguration
+import kotlin.collections.mutableMapOf
 
 data class ArenaConfig(
-    var name: String = "[Missing name]",
+    var name: String,
-    var spawns: List<ArenaSpawn> = emptyList(),
+    var file: File,
-    var loadouts: List<ArenaLoadout> = emptyList(),
+    var spawns: MutableMap<String, ArenaSpawn> = mutableMapOf(),
-    var checkpoints: List<ArenaCheckpoint> = emptyList(),
+    var loadouts: MutableMap<String, ArenaLoadout> = mutableMapOf(),
+    var checkpoints: MutableMap<String, ArenaCheckpoint> = mutableMapOf(),
     var points: ArenaPoints = ArenaPoints(),
+    var spawnRules: MutableMap<String, ArenaSpawnRule> = mutableMapOf()
 ) {
-    companion object {
+    fun save(toString: Boolean = false): String? {
-        fun load(file: File): ArenaConfig {
+        val config = YamlConfiguration()
-            val config = ConfigHelper.getOrCreateConfig(file, "template/arena.yml")
+        config.set("name", name)
-            val arenaConfig = ArenaConfig()
 
-            if (config.contains("name")) {
+        ConfigHelper.saveMap(ConfigHelper.getOrCreateSection(config, "spawns"), spawns)
-                arenaConfig.name = config.getString("name")!!
+        ConfigHelper.saveMap(ConfigHelper.getOrCreateSection(config, "loadouts"), loadouts)
+        ConfigHelper.saveMap(ConfigHelper.getOrCreateSection(config, "checkpoints"), checkpoints)
+        points.save(ConfigHelper.getOrCreateSection(config, "points"))
+        ConfigHelper.saveMap(ConfigHelper.getOrCreateSection(config, "spawnRules"), spawnRules)
+
+        if (toString) {
+            return config.saveToString()
         }
 
+        config.save(file)
+        return null
+    }
+
+    companion object {
+        @Throws(InvalidConfigurationException::class)
+        fun load(file: File): ArenaConfig {
+            val config = ConfigHelper.getOrCreateConfig(file, "template/arena.yml")
+            if (!config.contains("name")) {
+                throw InvalidConfigurationException("The arena configuration file '${file.name}' does not contain the required attribute 'name'")
+            }
+
+            val arenaConfig = ArenaConfig(config.getString("name")!!, file)
+
             if (config.contains("spawns")) {
-                arenaConfig.spawns = ArenaSpawn.loadList(config.getConfigurationSection("spawns")!!)
+                arenaConfig.spawns = ConfigHelper.loadMap(config.getConfigurationSection("spawns")!!, ArenaSpawn)
             }
 
             if (config.contains("loadouts")) {
-                arenaConfig.loadouts = ArenaLoadout.loadList(config.getConfigurationSection("loadouts")!!)
+                arenaConfig.loadouts = ConfigHelper.loadMap(config.getConfigurationSection("loadouts")!!, ArenaLoadout)
             }
 
             if (config.contains("checkpoints")) {
-                arenaConfig.checkpoints = ArenaCheckpoint.loadList(config.getConfigurationSection("checkpoints")!!)
+                arenaConfig.checkpoints = ConfigHelper.loadMap(config.getConfigurationSection("checkpoints")!!, ArenaCheckpoint)
             }
 
             if (config.contains("points")) {
                 arenaConfig.points = ArenaPoints.load(config.getConfigurationSection("points")!!)
             }
 
+            if (config.contains("spawnRules")) {
+                arenaConfig.spawnRules = ConfigHelper.loadMap(config.getConfigurationSection("spawnRules")!!, ArenaSpawnRule)
+            }
+
             return arenaConfig
         }
     }

src/main/kotlin/nl/kallestruik/darena/arenas/ArenaSession.kt

@@ -2,11 +2,12 @@ package nl.kallestruik.darena.arenas
 
 import nl.kallestruik.darena.types.arena.ArenaSpawn
 import org.bukkit.entity.Player
+import java.util.UUID
 
 data class ArenaSession(
     val participants: MutableList<Player> = ArrayList(),
     val spectators: MutableList<Player> = ArrayList(),
-    val completedObjective: MutableList<Player> = ArrayList(),
+    val completedObjective: MutableList<UUID> = ArrayList(),
-    val deaths: MutableList<Player> = ArrayList(),
+    val deaths: MutableList<UUID> = ArrayList(),
-    val spawns: MutableList<ArenaSpawn> = ArrayList(),
+    val initialSpawns: MutableList<String> = ArrayList(),
 )

src/main/kotlin/nl/kallestruik/darena/managers/ArenaManager.kt

@@ -19,8 +19,8 @@ class ArenaManager(
                 arenas.add(Arena(
                     ArenaConfig.load(path.toFile()),
                     arenaUtil,
-                    plugin
+                    plugin)
-                ))
+                )
             }
         }
     }

src/main/kotlin/nl/kallestruik/darena/types/ConfigListLoadable.kt

@@ -0,0 +1,4 @@
+package nl.kallestruik.darena.types
+
+interface ConfigListLoadable<T> {
+    fun loadFromList(key: String, value: Any): T

src/main/kotlin/nl/kallestruik/darena/types/ConfigListSaveable.kt

@@ -0,0 +1,7 @@
+package nl.kallestruik.darena.types
+
+interface ConfigListSaveable {
+    fun getKey(): String
+
+    fun getValue(): Any
+}

src/main/kotlin/nl/kallestruik/darena/types/ConfigLoadable.kt

@@ -0,0 +1,6 @@
+package nl.kallestruik.darena.types
+
+import org.bukkit.configuration.ConfigurationSection
+
+interface ConfigLoadable<T> {
+    fun load(section: ConfigurationSection): T

src/main/kotlin/nl/kallestruik/darena/types/ConfigSaveable.kt

@@ -0,0 +1,7 @@
+package nl.kallestruik.darena.types
+
+import org.bukkit.configuration.ConfigurationSection
+
+interface ConfigSaveable {
+    fun save(section: ConfigurationSection)
+}

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaCheckpoint.kt

@@ -2,24 +2,28 @@ package nl.kallestruik.darena.types.arena
 
 import org.bukkit.configuration.ConfigurationSection
 import javax.naming.ConfigurationException
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
+import nl.kallestruik.darena.util.ConfigHelper
+import nl.kallestruik.darena.util.Logger
 
 data class ArenaCheckpoint(
     val label: String,
     val lower: ArenaLocation,
     val upper: ArenaLocation,
     val spawn: String,
-) {
+): ConfigSaveable {
-    companion object {
+    override fun save(section: ConfigurationSection) {
-        fun loadList(section: ConfigurationSection): List<ArenaCheckpoint> {
+        Logger.trace(ArenaCheckpoint::class, "save(section: ${section.currentPath})")
-            val list = mutableListOf<ArenaCheckpoint>()
+        section.set("label", label)
-            for (key in section.getKeys(false)) {
+        lower.save(ConfigHelper.getOrCreateSection(section, "lower"))
-                list.add(load(section.getConfigurationSection(key)!!))
+        upper.save(ConfigHelper.getOrCreateSection(section, "upper"))
+        section.set("spawn", spawn)
     }
 
-            return list
+    companion object: ConfigLoadable<ArenaCheckpoint> {
-        }
+        override fun load(section: ConfigurationSection): ArenaCheckpoint {
-
+            Logger.trace(ArenaCheckpoint::class, "load(section: ${section.currentPath})")
-        fun load(section: ConfigurationSection): ArenaCheckpoint {
             return ArenaCheckpoint(
                 section.name,
                 ArenaLocation.load(section.getConfigurationSection("lower")!!),

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaEnchantment.kt

@@ -2,25 +2,30 @@ package nl.kallestruik.darena.types.arena
 
 import org.bukkit.configuration.ConfigurationSection
 import org.bukkit.configuration.InvalidConfigurationException
+import nl.kallestruik.darena.types.ConfigListSaveable
+import nl.kallestruik.darena.types.ConfigListLoadable
+import nl.kallestruik.darena.util.Logger
 
 data class ArenaEnchantment(
     val name: String,
     val level: Int,
-) {
+): ConfigListSaveable {
-    companion object {
+    override fun getKey(): String {
-        fun loadList(section: ConfigurationSection): List<ArenaEnchantment> {
+        Logger.trace(ArenaEnchantment::class, "getKey()")
-            val list = mutableListOf<ArenaEnchantment>()
+        return name
-            for (key in section.getKeys(false)) {
-                list.add(load(section.getConfigurationSection(key)!!))
     }
 
-            return list
+    override fun getValue(): Int {
+        Logger.trace(ArenaEnchantment::class, "getValue()")
+        return level
     }
 
-        fun load(section: ConfigurationSection): ArenaEnchantment {
+    companion object: ConfigListLoadable<ArenaEnchantment> {
+        override fun loadFromList(key: String, value: Any): ArenaEnchantment {
+        Logger.trace(ArenaEnchantment::class, "loadFromList(key: $key, value: $value)")
             return ArenaEnchantment(
-                section.getString("name") ?: throw InvalidConfigurationException("Could not find required field name in section '${section.currentPath}'"),
+                key,
-                section.getInt("level", 1)
+                value as Int
             )
         }
     }

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaItem.kt

@@ -1,6 +1,8 @@
 package nl.kallestruik.darena.types.arena
 
 import nl.kallestruik.darena.util.ConfigHelper
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
 import org.bukkit.Material
 import org.bukkit.configuration.ConfigurationSection
 
@@ -9,18 +11,16 @@ data class ArenaItem(
     val amount: Int = 1,
     val enchantments: List<ArenaEnchantment> = listOf(),
     val unbreakable: Boolean = false,
-) {
+): ConfigSaveable {
-    companion object {
+    override fun save(section: ConfigurationSection) {
-        fun loadList(section: ConfigurationSection): List<ArenaItem> {
+        section.set("material", material.toString())
-            val list = mutableListOf<ArenaItem>()
+        section.set("amount", amount)
-            for (key in section.getKeys(false)) {
+        ConfigHelper.saveList(ConfigHelper.getOrCreateSection(section, "enchantments"), enchantments, ArenaEnchantment)
-                list.add(load(section.getConfigurationSection(key)!!))
+        section.set("unbreakable", unbreakable)
     }
 
-            return list
+    companion object: ConfigLoadable<ArenaItem> {
-        }
+        override fun load(section: ConfigurationSection): ArenaItem {
-
-        fun load(section: ConfigurationSection): ArenaItem {
             val enchantments = section.getConfigurationSection("enchantments")?.let {
                 ArenaEnchantment.loadList(it)
             } ?: listOf()

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaLoadout.kt

@@ -1,24 +1,25 @@
 package nl.kallestruik.darena.types.arena
 
 import org.bukkit.configuration.ConfigurationSection
+import nl.kallestruik.darena.util.ConfigHelper
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
 
 data class ArenaLoadout(
     val name: String,
     val hotbar: List<ArenaItem>,
     val armor: List<ArenaItem>,
     val offhand: ArenaItem,
-) {
+): ConfigSaveable {
-    companion object {
+    override fun save(section: ConfigurationSection) {
-        fun loadList(section: ConfigurationSection): List<ArenaLoadout> {
+        ConfigHelper.saveList(ConfigHelper.getOrCreateSection(section, "hotbar"), hotbar)
-            val list = mutableListOf<ArenaLoadout>()
+        ConfigHelper.saveList(ConfigHelper.getOrCreateSection(section, "armor"), armor)
-            for (key in section.getKeys(false)) {
+        offhand.save(ConfigHelper.getOrCreateSection(section, "offhand"))
-                list.add(load(section.getConfigurationSection(key)!!))
     }
 
-            return list
+    companion object : ConfigLoadable<ArenaLoadout> {
-        }
+        override fun load(section: ConfigurationSection): ArenaLoadout {
 
-        fun load(section: ConfigurationSection): ArenaLoadout {
             val hotbar = section.getConfigurationSection("hotbar")?.let {
                 ArenaItem.loadList(it)
             }?: listOf()

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaLocation.kt

@@ -1,15 +1,22 @@
 package nl.kallestruik.darena.types.arena
 
 import org.bukkit.configuration.ConfigurationSection
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
 
 data class ArenaLocation(
     val x: Int,
     val y: Int,
     val z: Int
-) {
+): ConfigSaveable {
-    companion object {
+    override fun save(section: ConfigurationSection) {
+        section.set("x", x)
+        section.set("y", y)
+        section.set("z", z)
+    }
 
-        fun load(section: ConfigurationSection): ArenaLocation {
+    companion object: ConfigLoadable<ArenaLocation> {
+        override fun load(section: ConfigurationSection): ArenaLocation {
             return ArenaLocation(
                 section.getInt("x", 0),
                 section.getInt("y", 0),

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaPoints.kt

@@ -8,6 +8,17 @@ data class ArenaPoints(
     val lastManStanding: List<Int> = listOf(0),
     val checkpoints: Map<String, List<Int>> = mapOf()
 ) {
+    fun save(section: ConfigurationSection) {
+        section.set("kill", ConfigHelper.intListToString(kill))
+        section.set("lastManStanding", ConfigHelper.intListToString(lastManStanding))
+
+        val checkpointSection = ConfigHelper.getOrCreateSection(section, "checkpoints")
+        for (entry in checkpoints) {
+            checkpointSection.set(entry.key, ConfigHelper.intListToString(entry.value))
+        }
+
+    }
+
     companion object {
         fun load(section: ConfigurationSection): ArenaPoints {
             return ArenaPoints(

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaPotionEffect.kt

@@ -0,0 +1,28 @@
+package nl.kallestruik.darena.types.arena
+
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
+import org.bukkit.configuration.ConfigurationSection
+
+class ArenaPotionEffect(
+    val name: String,
+    val strength: Int,
+    val duration: Int,
+    val hidden: Boolean
+): ConfigSaveable {
+    override fun save(section: ConfigurationSection) {
+        section.set("strength", strength)
+        section.set("duration", duration)
+        section.set("hidden", hidden)
+    }
+
+    companion object: ConfigLoadable<ArenaPotionEffect> {
+        override fun load(section: ConfigurationSection): ArenaPotionEffect {
+            return ArenaPotionEffect(
+                section.name,
+                section.getInt("strength"),
+                section.getInt("duration"),
+                section.getBoolean("hidden"))
+        }
+    }
+}

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaSpawn.kt

@@ -1,6 +1,9 @@
 package nl.kallestruik.darena.types.arena
 
 import nl.kallestruik.darena.arenas.world.ArenaWorld
+import nl.kallestruik.darena.util.ConfigHelper
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
 import org.bukkit.Location
 import org.bukkit.configuration.ConfigurationSection
 import org.bukkit.entity.Player
@@ -13,23 +16,22 @@ data class ArenaSpawn(
     val yaw: Float,
     val pitch: Float,
     val loadout: String
-) {
+): ConfigSaveable {
     fun spawn(world: ArenaWorld, player: Player) {
         player.teleport(Location(world.world, x, y, z, yaw, pitch))
     }
 
-    companion object {
+    override fun save(section: ConfigurationSection) {
-        fun loadList(section: ConfigurationSection): List<ArenaSpawn> {
+        section.set("x", x)
-            val list = mutableListOf<ArenaSpawn>()
+        section.set("y", y)
-
+        section.set("z", z)
-            for (key in section.getKeys(false)) {
+        section.set("yaw", yaw.toDouble())
-                list.add(load(section.getConfigurationSection(key)!!))
+        section.set("pitch", pitch.toDouble())
+        section.set("loadout", loadout)
     }
 
-            return list
+    companion object: ConfigLoadable<ArenaSpawn> {
-        }
+        override fun load(section: ConfigurationSection): ArenaSpawn {
-
-        fun load(section: ConfigurationSection): ArenaSpawn {
             return ArenaSpawn(
                 section.name,
                 section.getDouble("x"),

src/main/kotlin/nl/kallestruik/darena/types/arena/ArenaSpawnRule.kt

@@ -0,0 +1,27 @@
+package nl.kallestruik.darena.types.arena
+
+import nl.kallestruik.darena.types.ConfigLoadable
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.util.ConfigHelper
+import org.bukkit.configuration.ConfigurationSection
+
+class ArenaSpawnRule(
+    val reuseSpawns: Boolean,
+    val effects: Map<String, ArenaPotionEffect>,
+    val spawns: List<String>
+): ConfigSaveable {
+    override fun save(section: ConfigurationSection) {
+        section.set("reuseSpawns", reuseSpawns)
+        ConfigHelper.saveMap(ConfigHelper.getOrCreateSection(section, "effects"), effects)
+        section.set("spawns", spawns)
+    }
+
+    companion object: ConfigLoadable<ArenaSpawnRule> {
+        override fun load(section: ConfigurationSection): ArenaSpawnRule {
+            return ArenaSpawnRule(
+                section.getBoolean("reuseSpawn", true),
+                ConfigHelper.loadMap(section.getConfigurationSection("effects")!!, ArenaPotionEffect),
+                section.getStringList("spawns"))
+        }
+    }
+}

src/main/kotlin/nl/kallestruik/darena/util/ArenaUtil.kt

@@ -7,10 +7,12 @@ import org.bukkit.entity.Player
 class ArenaUtil {
 
     fun getPossibleParticipants(): List<Player> {
+        Logger.trace(ArenaUtil::class, "getPossibleParticipants()")
         return Bukkit.getOnlinePlayers().filter { it.gameMode == GameMode.SURVIVAL }
     }
 
     fun getPossibleSpectators(): List<Player> {
+        Logger.trace(ArenaUtil::class, "getPossibleSpectators()")
         return Bukkit.getOnlinePlayers().filter { it.gameMode == GameMode.SPECTATOR }
     }
 }

src/main/kotlin/nl/kallestruik/darena/util/ConfigHelper.kt

@@ -1,6 +1,10 @@
 package nl.kallestruik.darena.util
 
 import nl.kallestruik.darena.exceptions.MaterialNotFoundException
+import nl.kallestruik.darena.types.ConfigSaveable
+import nl.kallestruik.darena.types.ConfigLoadable
+import nl.kallestruik.darena.types.ConfigListSaveable
+import nl.kallestruik.darena.types.ConfigListLoadable
 import org.bukkit.Material
 import org.bukkit.configuration.file.YamlConfiguration
 import org.bukkit.configuration.ConfigurationSection
@@ -9,6 +13,7 @@ import java.io.*
 object ConfigHelper {
 
     fun getOrCreateConfig(file: File, template: String): YamlConfiguration {
+        Logger.trace(ConfigHelper::class, "getOrCreateConfig(file: ${file.toString()}, template: $template)")
         if (!file.parentFile.exists())
             file.parentFile.mkdirs()
         if (!file.exists())
@@ -20,10 +25,12 @@ object ConfigHelper {
     }
 
     private fun createConfig(file: File, template: String) {
+        Logger.trace(ConfigHelper::class, "createConfig(file: ${file.toString()}, template: $template)")
         try {
             ConfigHelper.javaClass.getResourceAsStream("/$template").use { stream ->
                 FileOutputStream(file).use { resStreamOut ->
                     if (stream == null) {
+                        Logger.error(ConfigHelper::class, "Cannot get resource \"$template\" from jar file.")
                         throw IOException("Cannot get resource \"$template\" from Jar file.")
                     }
                     var readBytes: Int
@@ -38,20 +45,77 @@ object ConfigHelper {
         }
     }
 
+    fun getOrCreateSection(section: ConfigurationSection, key: String): ConfigurationSection {
+        Logger.trace(ConfigHelper::class, "getOrCreateSection(section: ${section.currentPath}, key: $key)")
+        if (section.contains(key) && section.isConfigurationSection(key)) {
+            return section.getConfigurationSection(key)!!
+        }
+
+        return section.createSection(key)
+    }
+
+    fun <T: ConfigSaveable> saveMap(section: ConfigurationSection, map: Map<String, T>) {
+        Logger.trace(ConfigHelper::class, "saveMap(section: ${section.currentPath}, map: ${map.toString()})")
+        for (entry in map.entries) {
+            entry.value.save(ConfigHelper.getOrCreateSection(section, entry.key))
+        }
+    }
+
+    fun <T: ConfigListSaveable> saveList(section: ConfigurationSection, list: List<T>) {
+        Logger.trace(ConfigHelper::class, "saveList(section: ${section.currentPath}, list: ${list.toString()})")
+        for (item in list) {
+            section.set(item.getKey(), item.getValue())
+        }
+    }
+
+    fun <R, T: ConfigLoadable<R>> loadMap(section: ConfigurationSection, loader: T): MutableMap<String, R> {
+        Logger.trace(ConfigHelper::class, "loadMap(section: ${section.currentPath}, loader: ${loader::class.qualifiedName})")
+        val map = mutableMapOf<String, R>()
+        for (key in section.getKeys(false)) {
+            map.put(key, loader.load(section.getConfigurationSection(key)!!))
+        }
+
+        return map
+    }
+
+    fun <R, T: ConfigListLoadable<R>> loadList(section: ConfigurationSection, loader: T): MutableList<R> {
+        Logger.trace(ConfigHelper::class, "loadList(section: ${section.currentPath}, loader: ${loader::class.qualifiedName})")
+        val list = mutableListOf<R>()
+        for (key in section.getKeys(false)) {
+            loader.loadFromList(key, section.get(key)!!)
+        }
+
+        return list
+    }
+
     @Throws(MaterialNotFoundException::class)
     fun matchMaterial(material: String): Material {
-        return Material.matchMaterial(material) ?: throw MaterialNotFoundException("There is not material with the name '$material'")
+        Logger.trace(ConfigHelper::class, "matchMaterial(material: $material)")
+        return Material.matchMaterial(material) ?: throw MaterialNotFoundException("There is no material with the name '$material'")
     }
 
     fun parseIntList(string: String): List<Int> {
+        Logger.trace(ConfigHelper::class, "parseIntList(string: $string)")
         val list = mutableListOf<Int>()
         for (key in string.split(" ")) {
             list.add(key.toInt())
         }
+
         return list
     }
 
+    fun intListToString(list: List<Int>): String {
+        Logger.trace(ConfigHelper::class, "list: ${list.toString()}")
+        val sb = StringBuilder()
+        for (i in list) {
+            sb.append(i)
+        }
+
+        return sb.toString().trim()
+    }
+
     fun parseStringIntListMap(section: ConfigurationSection): Map<String, List<Int>> {
+        Logger.trace(ConfigHelper::class, "parseStringIntListMap(section: ${section.currentPath})")
         val map = mutableMapOf<String, List<Int>>()
         for (key in section.getKeys(true)) {
             map[key] = parseIntList(section.getString(key)!!)

src/main/kotlin/nl/kallestruik/darena/util/Logger.kt

@@ -0,0 +1,53 @@
+package nl.kallestruik.darena.util
+
+import kotlin.reflect.KClass
+
+object Logger {
+    var level: LogLevel = LogLevel.INFO
+
+
+    fun trace(source: KClass<*>, message: String) {
+        if (level.shouldLog(LogLevel.TRACE))
+            println("[TRACE] [${source.qualifiedName}] $message")
+    }
+
+    fun debug(source: KClass<*>, message: String) {
+        if (level.shouldLog(LogLevel.DEBUG))
+            println("[DEBUG] [${source.qualifiedName}] $message")
+    }
+
+    fun info(source: KClass<*>, message: String) {
+        if (level.shouldLog(LogLevel.INFO))
+            println("[INFO] [${source.qualifiedName}] $message")
+    }
+
+    fun warn(source: KClass<*>, message: String) {
+        if (level.shouldLog(LogLevel.WARN))
+            println("[WARN] [${source.qualifiedName}] $message")
+    }
+
+    fun error(source: KClass<*>, message: String) {
+        if (level.shouldLog(LogLevel.ERROR))
+            println("[ERROR] [${source.qualifiedName}] $message")
+    }
+
+    fun critical(source: KClass<*>, message: String) {
+        if (level.shouldLog(LogLevel.CRITICAL))
+            println("[CRITICAL] [${source.qualifiedName}] $message")
+    }
+
+    enum LogLevel(
+        val weight: Int
+    ) {
+        TRACE(100),
+        DEBUG(80),
+        INFO(60),
+        WARN(40),
+        ERROR(20),
+        CRITICAL(0)
+
+        fun shouldLog(level: LogLevel): Boolean {
+            return level.weight <= weight
+        }
+    }
+}

src/main/resources/template/arena.yml

@@ -8,35 +8,30 @@
 #        z: 0
 #        yaw: 0
 #        pitch: 0
-#        loadout: "default"
 #    label2:
 #        x: 10
 #        y: 100
 #        z: 0
 #        yaw: 0
 #        pitch: 0
-#        loadout: "default"
 #    label3:
 #        x: 10
 #        y: 100
 #        z: 10
 #        yaw: 0
 #        pitch: 0
-#        loadout: "default"
 #    label4:
 #        x: 0
 #        y: 100
 #        z: 10
 #        yaw: 0
 #        pitch: 0
-#        loadout: "default"
 #    specatorSpawn:
 #        x: 0
 #        y: 150
 #        z: 0
 #        yaw: 0
 #        pitch: 0
-#        loadout: "none"
 #loadouts:
 #    default:
 #        hotbar:
@@ -76,7 +71,7 @@
 #            x: 10
 #            y: 10
 #            z: 10
-#        spawn: "label1"
+#        spawnRule: "label1"
 #    checkpoint2:
 #        lower:
 #            x: 20
@@ -86,7 +81,7 @@
 #            x: 30
 #            y: 10
 #            z: 30
-#        spawn: "label2"
+#        spawnRule: "label2"
 #    finish:
 #        lower:
 #            x: 40
@@ -96,7 +91,7 @@
 #            x: 50
 #            y: 10
 #            z: 50
-#        spawn: "spectatorSpawn"
+#        spawnRule: "spectator"
 #points:
 #    kill: 10 5
 #    last-man-standing: 10 5 3 0
@@ -104,3 +99,22 @@
 #        checkpoint1: 10
 #        checkpoint2: 5
 #        finish: 20 10 5
+#spawnRules:
+#    initial:
+#        reuse-spawns: true
+#        effects:
+#            swiftness:
+#                strength: 1
+#                duration: 10
+#                hidden: false
+#            invisability:
+#                strength: 1
+#                duration: 100000000
+#                hidden: true
+#        spawns:
+#            - "label1"
+#        loadout: "default"
+#    spectator:
+#        reuse-spawns: true
+#        spawns:
+#            - "spectatorSpawn"