Implement chaos module for rotating chunks when a player enters.

foundation-chaos/src/main/kotlin/gay/pizza/foundation/chaos/modules/ChaosModules.kt

@@ -10,6 +10,7 @@ object ChaosModules {
     TntAllPlayers(plugin),
     MegaTnt(plugin),
     PlayerSwap(plugin),
-    WorldSwapper(plugin)
+    WorldSwapper(plugin),
+    ChunkEnterRotate()
   ).shuffled()
 }

foundation-chaos/src/main/kotlin/gay/pizza/foundation/chaos/modules/ChunkEnterRotate.kt

@@ -0,0 +1,42 @@
+package gay.pizza.foundation.chaos.modules
+
+import org.bukkit.Chunk
+import org.bukkit.entity.Player
+import org.bukkit.event.EventHandler
+import org.bukkit.event.player.PlayerMoveEvent
+import java.util.WeakHashMap
+
+class ChunkEnterRotate : ChaosModule {
+  override fun id(): String = "chunk-enter-rotate"
+  override fun name(): String = "Chunk Enter Rotate"
+  override fun what(): String = "Rotates the chunk when the player enters a chunk."
+
+  private val playerChunkMap = WeakHashMap<Player, Chunk>()
+
+  @EventHandler
+  fun onPotentialChunkMove(event: PlayerMoveEvent) {
+    val player = event.player
+    val currentChunk = event.player.chunk
+    val previousChunk = playerChunkMap.put(player, currentChunk)
+    if (previousChunk == null || previousChunk == currentChunk) {
+      return
+    }
+    rotateChunk(currentChunk)
+    if (!player.isFlying) {
+      player.teleport(player.location.toHighestLocation().add(0.0, 1.0, 0.0))
+    }
+  }
+
+  private fun rotateChunk(chunk: Chunk) {
+    val snapshot = chunk.chunkSnapshot
+    for (x in 0..15) {
+      for (z in 0..15) {
+        for (y in chunk.world.minHeight until chunk.world.maxHeight) {
+          val rotatedBlock = chunk.getBlock(z, y, x)
+          val originalBlockData = snapshot.getBlockData(x, y, z)
+          rotatedBlock.blockData = originalBlockData
+        }
+      }
+    }
+  }
+}