Tweak

src/main/kotlin/io/dico/parcels2/ParcelGenerator.kt

@@ -1,9 +1,6 @@
 package io.dico.parcels2
 
-import io.dico.parcels2.blockvisitor.RegionTraverser
+import io.dico.parcels2.blockvisitor.*
-import io.dico.parcels2.blockvisitor.Worker
-import io.dico.parcels2.blockvisitor.WorkerScope
-import io.dico.parcels2.blockvisitor.WorktimeLimiter
 import io.dico.parcels2.util.Region
 import io.dico.parcels2.util.Vec2i
 import io.dico.parcels2.util.get
@@ -62,6 +59,8 @@ interface ParcelBlockManager {
 
     fun clearParcel(parcel: ParcelId): Worker
 
+    fun submitBlockVisitor(parcelId: ParcelId, task: TimeLimitedTask): Worker
+
     /**
      * Used to update owner blocks in the corner of the parcel
      */
@@ -70,7 +69,7 @@ interface ParcelBlockManager {
 
 inline fun ParcelBlockManager.doBlockOperation(parcel: ParcelId,
                                                traverser: RegionTraverser,
-                                               crossinline operation: suspend WorkerScope.(Block) -> Unit) = worktimeLimiter.submit {
+                                               crossinline operation: suspend WorkerScope.(Block) -> Unit) = submitBlockVisitor(parcel) {
     val region = getRegion(parcel)
     val blockCount = region.blockCount.toDouble()
     val blocks = traverser.traverseRegion(region)

src/main/kotlin/io/dico/parcels2/command/AbstractParcelCommands.kt

@@ -1,9 +1,6 @@
 package io.dico.parcels2.command
 
-import io.dico.dicore.command.CommandException
+import io.dico.dicore.command.*
-import io.dico.dicore.command.EMessageType
-import io.dico.dicore.command.ExecutionContext
-import io.dico.dicore.command.ICommandReceiver
 import io.dico.parcels2.ParcelWorld
 import io.dico.parcels2.ParcelsPlugin
 import io.dico.parcels2.PlayerProfile
@@ -43,6 +40,7 @@ abstract class AbstractParcelCommands(val plugin: ParcelsPlugin) : ICommandRecei
         "Run \"/${context.route.joinToString(" ")} -sure\" if you want to go through with this."
 
     protected fun ParcelScope.clearWithProgressUpdates(context: ExecutionContext, action: String) {
+        Validate.isTrue(!parcel.hasBlockVisitors, "A process is already running in this parcel")
         world.blockManager.clearParcel(parcel.id)
             .onProgressUpdate(1000, 1000) { progress, elapsedTime ->
                 val alt = context.getFormat(EMessageType.NUMBER)

src/main/kotlin/io/dico/parcels2/command/CommandsGeneral.kt

@@ -18,9 +18,11 @@ import org.bukkit.entity.Player
 class CommandsGeneral(plugin: ParcelsPlugin) : AbstractParcelCommands(plugin) {
 
     @Cmd("auto")
-    @Desc("Finds the unclaimed parcel nearest to origin,",
+    @Desc(
+        "Finds the unclaimed parcel nearest to origin,",
         "and gives it to you",
-        shortVersion = "sets you up with a fresh, unclaimed parcel")
+        shortVersion = "sets you up with a fresh, unclaimed parcel"
+    )
     suspend fun WorldScope.cmdAuto(player: Player): Any? {
         checkConnected("be claimed")
         checkParcelLimit(player, world)
@@ -33,32 +35,42 @@ class CommandsGeneral(plugin: ParcelsPlugin) : AbstractParcelCommands(plugin) {
     }
 
     @Cmd("info", aliases = ["i"])
-    @Desc("Displays general information",
+    @Desc(
+        "Displays general information",
         "about the parcel you're on",
-        shortVersion = "displays information about this parcel")
+        shortVersion = "displays information about this parcel"
+    )
     fun ParcelScope.cmdInfo(player: Player) = parcel.infoString
 
     @Cmd("home", aliases = ["h"])
-    @Desc("Teleports you to your parcels,",
+    @Desc(
+        "Teleports you to your parcels,",
         "unless another player was specified.",
         "You can specify an index number if you have",
         "more than one parcel",
-        shortVersion = "teleports you to parcels")
+        shortVersion = "teleports you to parcels"
+    )
     @RequireParameters(0)
-    suspend fun cmdHome(player: Player,
+    suspend fun cmdHome(
-                        @Kind(ParcelTarget.OWNER_REAL) target: ParcelTarget): Any? {
+        player: Player,
+        @Kind(ParcelTarget.OWNER_REAL) target: ParcelTarget
+    ): Any? {
         return cmdGoto(player, target)
     }
 
     @Cmd("tp", aliases = ["teleport"])
-    suspend fun cmdTp(player: Player,
+    suspend fun cmdTp(
-                      @Kind(ParcelTarget.ID) target: ParcelTarget): Any? {
+        player: Player,
+        @Kind(ParcelTarget.ID) target: ParcelTarget
+    ): Any? {
         return cmdGoto(player, target)
     }
 
     @Cmd("goto")
-    suspend fun cmdGoto(player: Player,
+    suspend fun cmdGoto(
-                        @Kind(ParcelTarget.ANY) target: ParcelTarget): Any? {
+        player: Player,
+        @Kind(ParcelTarget.ANY) target: ParcelTarget
+    ): Any? {
         if (target is ParcelTarget.ByOwner) {
             target.resolveOwner(plugin.storage)
             if (!target.owner.matches(player) && !player.hasParcelHomeOthers) {
@@ -73,14 +85,18 @@ class CommandsGeneral(plugin: ParcelsPlugin) : AbstractParcelCommands(plugin) {
     }
 
     @Cmd("goto_fake")
-    suspend fun cmdGotoFake(player: Player,
+    suspend fun cmdGotoFake(
-                            @Kind(ParcelTarget.OWNER_FAKE) target: ParcelTarget): Any? {
+        player: Player,
+        @Kind(ParcelTarget.OWNER_FAKE) target: ParcelTarget
+    ): Any? {
         return cmdGoto(player, target)
     }
 
     @Cmd("claim")
-    @Desc("If this parcel is unowned, makes you the owner",
+    @Desc(
-        shortVersion = "claims this parcel")
+        "If this parcel is unowned, makes you the owner",
+        shortVersion = "claims this parcel"
+    )
     suspend fun ParcelScope.cmdClaim(player: Player): Any? {
         checkConnected("be claimed")
         parcel.owner.takeIf { !player.hasAdminManage }?.let {

src/main/kotlin/io/dico/parcels2/defaultimpl/DefaultParcelGenerator.kt

@@ -227,7 +227,7 @@ class DefaultParcelGenerator(
             return world.getParcelById(parcelId)
         }
 
-        private fun submitBlockVisitor(parcelId: ParcelId, task: TimeLimitedTask): Worker {
+        override fun submitBlockVisitor(parcelId: ParcelId, task: TimeLimitedTask): Worker {
             val parcel = getParcel(parcelId) ?: return worktimeLimiter.submit(task)
             if (parcel.hasBlockVisitors) throw IllegalArgumentException("This parcel already has a block visitor")