Add paper support

paper/src/main/kotlin/org/example/ExamplePaperPlugin.kt

@@ -1,10 +1,16 @@
 package org.example
 
+import io.papermc.paper.command.brigadier.CommandBuilder
+import org.anvilpowered.kbrig.brigadier.toBrigadier
 import org.bukkit.event.Listener
 import org.bukkit.plugin.java.JavaPlugin
+import org.example.command.PingCommand
 
 class ExamplePaperPlugin : JavaPlugin(), Listener {
+    @Suppress("UnstableApiUsage")
     override fun onEnable() {
-        // WTF?
+        CommandBuilder.of(this, "example")
+            .then(PingCommand.create().mapSource().toBrigadier())
+            .register()
     }
 }

paper/src/main/kotlin/org/example/PaperBridgeSource.kt

@@ -1,13 +1,15 @@
+@file:Suppress("UnstableApiUsage")
+
 package org.example
 
+import io.papermc.paper.command.brigadier.CommandSourceStack
 import net.kyori.adventure.audience.Audience
 import net.kyori.adventure.audience.ForwardingAudience
 import org.anvilpowered.kbrig.tree.LiteralCommandNode
 import org.anvilpowered.kbrig.tree.mapSource
-import org.bukkit.command.CommandSender
 
-class PaperBridgeSource(private val paperCommandSource: CommandSender) : PluginSource, ForwardingAudience.Single {
-    override fun audience(): Audience = paperCommandSource
+class PaperBridgeSource(private val paperCommandSource: CommandSourceStack) : PluginSource, ForwardingAudience.Single {
+    override fun audience(): Audience = paperCommandSource.bukkitSender
 }
 
-fun LiteralCommandNode<PluginSource>.mapSource(): LiteralCommandNode<CommandSender> = mapSource { PaperBridgeSource(it) }
+fun LiteralCommandNode<PluginSource>.mapSource(): LiteralCommandNode<CommandSourceStack> = mapSource { PaperBridgeSource(it) }

paper/src/main/resources/paper-plugin.yml

@@ -0,0 +1,5 @@
+name: example-plugin
+version: '0.1.0-SNAPSHOT'
+main: org.example.ExamplePaperPlugin
+description: Paper Example Plugin
+api-version: '1.19'