chore: Update a few deprecations

Bukkit/src/main/java/com/plotsquared/bukkit/BukkitPlatform.java

@@ -36,7 +36,6 @@ import com.plotsquared.bukkit.listener.ChunkListener;
 import com.plotsquared.bukkit.listener.EntityEventListener;
 import com.plotsquared.bukkit.listener.EntitySpawnListener;
 import com.plotsquared.bukkit.listener.PaperListener;
-import com.plotsquared.bukkit.listener.PaperListener113;
 import com.plotsquared.bukkit.listener.PlayerEventListener;
 import com.plotsquared.bukkit.listener.ProjectileEventListener;
 import com.plotsquared.bukkit.listener.ServerListener;
@@ -356,11 +355,7 @@ public final class BukkitPlatform extends JavaPlugin implements Listener, PlotPl
             getServer().getPluginManager().registerEvents(injector().getInstance(ServerListener.class), this);
             getServer().getPluginManager().registerEvents(injector().getInstance(EntitySpawnListener.class), this);
             if (PaperLib.isPaper() && Settings.Paper_Components.PAPER_LISTENERS) {
-                if (serverVersion()[1] == 13) {
-                    getServer().getPluginManager().registerEvents(injector().getInstance(PaperListener113.class), this);
-                } else {
                     getServer().getPluginManager().registerEvents(injector().getInstance(PaperListener.class), this);
-                }
             } else {
                 getServer().getPluginManager().registerEvents(injector().getInstance(SpigotListener.class), this);
             }

Bukkit/src/main/java/com/plotsquared/bukkit/managers/MultiverseWorldManager.java

@@ -30,8 +30,9 @@ import org.checkerframework.checker.nullness.qual.Nullable;
  *
  * @deprecated Deprecated and scheduled for removal without replacement
  *         in favor of the build in setup wizard.
+ *         However, this class will be kept around for a while, given it's not a maintenance burden.
  */
-@Deprecated(forRemoval = true, since = "6.0.0")
+@Deprecated
 @Singleton
 public class MultiverseWorldManager extends BukkitWorldManager {
 

Core/src/main/java/com/plotsquared/core/generator/SquarePlotManager.java

@@ -114,26 +114,14 @@ public abstract class SquarePlotManager extends GridPlotManager {
             end = pathWidthLower + squarePlotWorld.PLOT_WIDTH;
         }
         int size = squarePlotWorld.PLOT_WIDTH + squarePlotWorld.ROAD_WIDTH;
-        int idx;
-        if (x < 0) {
-            idx = x / size;
-            x = size + (x % size);
-        } else {
-            idx = (x / size) + 1;
-            x = x % size;
-        }
-        int idz;
-        if (z < 0) {
-            idz = z / size;
-            z = size + (z % size);
-        } else {
-            idz = (z / size) + 1;
-            z = z % size;
-        }
-        if (z <= pathWidthLower || z > end || x <= pathWidthLower || x > end) {
+        int dx = Math.floorDiv(x, size) + 1;
+        int rx = Math.floorMod(x, size);
+        int dz = Math.floorDiv(z, size) + 1;
+        int rz = Math.floorMod(z, size);
+        if (rz <= pathWidthLower || rz > end || rx <= pathWidthLower || rx > end) {
             return null;
         } else {
-            return PlotId.of(idx, idz);
+            return PlotId.of(dx, dz);
         }
     }
 
@@ -180,24 +168,10 @@ public abstract class SquarePlotManager extends GridPlotManager {
                 }
                 end = pathWidthLower + squarePlotWorld.PLOT_WIDTH;
             }
-            int dx;
-            int rx;
-            if (x < 0) {
-                dx = x / size;
-                rx = size + (x % size);
-            } else {
-                dx = (x / size) + 1;
-                rx = x % size;
-            }
-            int dz;
-            int rz;
-            if (z < 0) {
-                dz = z / size;
-                rz = size + (z % size);
-            } else {
-                dz = (z / size) + 1;
-                rz = z % size;
-            }
+            int dx = Math.floorDiv(x, size) + 1;
+            int rx = Math.floorMod(x, size);
+            int dz = Math.floorDiv(z, size) + 1;
+            int rz = Math.floorMod(z, size);
             PlotId id = PlotId.of(dx, dz);
             boolean[] merged = new boolean[]{rz <= pathWidthLower, rx > end, rz > end, rx <= pathWidthLower};
             int hash = HashUtil.hash(merged);