Command

src/main/kotlin/io/github/addoncommunity/galactifun/Galactifun2.kt

@@ -1,7 +1,10 @@
 package io.github.addoncommunity.galactifun
 
+import co.aikar.commands.PaperCommandManager
 import io.github.addoncommunity.galactifun.api.objects.planet.PlanetaryWorld
 import io.github.addoncommunity.galactifun.base.BaseUniverse
+import io.github.addoncommunity.galactifun.core.Gf2Command
+import io.github.addoncommunity.galactifun.core.managers.WorldManager
 import io.github.addoncommunity.galactifun.scripting.PlanetScript
 import io.github.addoncommunity.galactifun.scripting.evalScript
 import io.github.seggan.kfun.AbstractAddon
@@ -19,6 +22,9 @@ import kotlin.script.experimental.host.toScriptSource
 
 class Galactifun2 : AbstractAddon() {
 
+    lateinit var manager: PaperCommandManager
+        private set
+
     override fun onLoad() {
         Bukkit.spigot().config["world-settings.default.verbose"] = false
     }
@@ -55,6 +61,17 @@ class Galactifun2 : AbstractAddon() {
 
         Metrics(this, 11613)
 
+        manager = PaperCommandManager(this)
+        manager.enableUnstableAPI("help")
+        manager.commandCompletions.registerAsyncCompletion("planets") { _ ->
+            WorldManager.allPlanetaryWorlds.map { it.name }.sorted()
+        }
+        manager.commandContexts.registerContext(PlanetaryWorld::class.java) { context ->
+            val arg = context.popFirstArg()
+            WorldManager.allPlanetaryWorlds.find { it.name == arg }
+        }
+        manager.registerCommand(Gf2Command)
+
         BaseUniverse.init()
 
         val scriptsFolder = dataFolder.resolve("planets")

src/main/kotlin/io/github/addoncommunity/galactifun/core/Gf2Command.kt

@@ -0,0 +1,21 @@
+package io.github.addoncommunity.galactifun.core
+
+import co.aikar.commands.BaseCommand
+import co.aikar.commands.annotation.*
+import io.github.addoncommunity.galactifun.api.objects.planet.PlanetaryWorld
+import org.bukkit.Location
+import org.bukkit.entity.Player
+
+@CommandAlias("gf2")
+object Gf2Command : BaseCommand() {
+
+    @Subcommand("planet")
+    @CommandCompletion("@planets")
+    @CommandPermission("galactifun.admin")
+    @Description("Teleport to a planet")
+    fun tpPlanet(player: Player, planet: PlanetaryWorld, @Optional location: Location?) {
+        val loc = location ?: planet.world.spawnLocation
+        loc.world = planet.world
+        player.teleport(loc)
+    }
+}

src/main/kotlin/io/github/addoncommunity/galactifun/core/managers/WorldManager.kt

@@ -5,17 +5,19 @@ import io.github.addoncommunity.galactifun.pluginInstance
 import io.github.addoncommunity.galactifun.runOnNextTick
 import org.bukkit.World
 import org.bukkit.configuration.file.YamlConfiguration
-import java.io.File
+import java.util.concurrent.ConcurrentHashMap
 
 object WorldManager {
 
-    private val spaceWorlds = mutableMapOf<World, PlanetaryWorld>()
+    private val spaceWorlds = ConcurrentHashMap<World, PlanetaryWorld>()
+    val allPlanetaryWorlds: Collection<PlanetaryWorld>
+        get() = spaceWorlds.values
 
     private val config: YamlConfiguration
     private val defaultConfig: YamlConfiguration
 
     init {
-        val configFile = File(pluginInstance.dataFolder, "worlds.yml")
+        val configFile = pluginInstance.dataFolder.resolve("worlds.yml")
         config = YamlConfiguration()
         defaultConfig = YamlConfiguration()
         config.setDefaults(defaultConfig)