This breaks map rendering more

Server/src/main/core/game/node/entity/player/Player.java

@@ -856,7 +856,7 @@ public class Player extends Entity {
 		getZoneMonitor().getZones().clear();
 		playerFlags.setLastSceneGraph(null);
 		playerFlags.setUpdateSceneGraph(false);
-		playerFlags.setLastViewport(new RegionChunk[13][13]);
+		playerFlags.setLastViewport(new LinkedList<>());
 		renderInfo.getLocalNpcs().clear();
 		renderInfo.getLocalPlayers().clear();
 		renderInfo.setLastLocation(null);

Server/src/main/core/game/world/update/MapChunkRenderer.kt

@@ -13,6 +13,8 @@ import kotlin.math.abs
  * @author Emperor
  */
 object MapChunkRenderer {
+    const val buildAreaDepth = 6
+
     /**
      * Sends the map chunk rendering packet.
      * @param player The player.
@@ -21,61 +23,35 @@ object MapChunkRenderer {
     fun render(player: Player) {
         val last = player.playerFlags.lastViewport
         val updated: MutableList<RegionChunk> = ArrayList()
-        val current: MutableList<MutableList<RegionChunk>> = ArrayList()
+        val current: MutableList<RegionChunk> = ArrayList()
 
-        val buildAreaDepth = 6
         for (dcx in -buildAreaDepth..+buildAreaDepth) {
-            val addX = ArrayList<RegionChunk>()
             for (dcy in -buildAreaDepth..+buildAreaDepth) {
                 val newloc = player.location.chunkBase.transform(dcx*8, dcy*8, 0)
-                addX.add(newloc.chunk)
+                current.add(newloc.chunk)
             }
-            current.add(addX)
         }
 
-        var sizeX = last.size
-        for (x in 0 until sizeX) {
-            val sizeY: Int = last[x].size
-            for (y in 0 until sizeY) {
-                val previous = last[x][y] ?: continue
-                if (!containsChunk(current, previous)) {
-                    PacketRepository.send(ClearRegionChunk::class.java, ClearChunkContext(player, previous))
-                } else {
-                    updated.add(previous)
-                }
+        val removeList = LinkedList<RegionChunk>()
+        for (chunk in last) {
+            if (current.contains(chunk)) {
+                updated.add(chunk)
+            } else {
+                PacketRepository.send(ClearRegionChunk::class.java, ClearChunkContext(player, chunk))
+                removeList.add(chunk)
             }
         }
-        sizeX = current.size
-        for (x in 0 until sizeX) {
-            val sizeY: Int = current[x].size
-            for (y in 0 until sizeY) {
-                val chunk = current[x][y]
-                if (!updated.contains(chunk)) {
-                    chunk.synchronize(player)
-                } else {
-                    chunk.update(player)
-                }
-                last[x][y] = current[x][y]
-            }
+        for (chunk in removeList) {
+            last.remove(chunk)
         }
-    }
 
-    /**
-     * Checks if the chunks list contains the specified region chunk.
-     * @param list The list to search.
-     * @param c The region chunk.
-     * @return `True` if so.
-     */
-    private fun containsChunk(list: MutableList<MutableList<RegionChunk>>, c: RegionChunk): Boolean {
-        val sizeList = list.size
-        for (x in 0 until sizeList) {
-            val chunkSize: Int = list[x].size
-            for (y in 0 until chunkSize) {
-                if (list[x][y] === c) {
-                    return true
-                }
+        for (chunk in current) {
+            if (updated.contains(chunk)) {
+                chunk.update(player)
+            } else {
+                chunk.synchronize(player)
             }
+            last.add(chunk)
         }
-        return false
     }
 }

Server/src/main/core/game/world/update/flag/PlayerFlags.java

@@ -3,6 +3,8 @@ package core.game.world.update.flag;
 import core.game.world.map.Location;
 import core.game.world.map.RegionChunk;
 
+import java.util.LinkedList;
+
 /**
  * A class holding a player's updating flags.
  * @author Emperor
@@ -17,7 +19,7 @@ public final class PlayerFlags {
 	/**
 	 * The last viewport.
 	 */
-	private RegionChunk[][] lastViewport = new RegionChunk[13][13];
+	private LinkedList<RegionChunk> lastViewport = new LinkedList<>();
 
 	/**
 	 * The location the player was standing on when last scene graph update
@@ -70,7 +72,7 @@ public final class PlayerFlags {
 	 * Gets the lastViewport.
 	 * @return The lastViewport.
 	 */
-	public RegionChunk[][] getLastViewport() {
+	public LinkedList<RegionChunk> getLastViewport() {
 		return lastViewport;
 	}
 
@@ -78,7 +80,7 @@ public final class PlayerFlags {
 	 * Sets the lastViewport.
 	 * @param lastViewport The lastViewport to set.
 	 */
-	public void setLastViewport(RegionChunk[][] lastViewport) {
+	public void setLastViewport(LinkedList<RegionChunk> lastViewport) {
 		this.lastViewport = lastViewport;
 	}