Add teleport boundary limits

src/main/java/pw/kaboom/extras/Main.java

@@ -412,6 +412,7 @@ public class Main extends JavaPlugin {
 		this.getServer().getPluginManager().registerEvents(new EntityExplosion(), this);
 		this.getServer().getPluginManager().registerEvents(new EntityKnockback(), this);
 		this.getServer().getPluginManager().registerEvents(new EntitySpawn(), this);
+		this.getServer().getPluginManager().registerEvents(new EntityTeleport(), this);
 
 		/* Player-related modules */
 		this.getServer().getPluginManager().registerEvents(new PlayerChat(), this);
@@ -419,6 +420,7 @@ public class Main extends JavaPlugin {
 		this.getServer().getPluginManager().registerEvents(new PlayerConnection(), this);
 		this.getServer().getPluginManager().registerEvents(new PlayerDamage(), this);
 		this.getServer().getPluginManager().registerEvents(new PlayerInteract(), this);
+		this.getServer().getPluginManager().registerEvents(new PlayerTeleport(), this);
 
 		/* Server-related modules */
 		this.getServer().getPluginManager().registerEvents(new ServerCommand(), this);

src/main/java/pw/kaboom/extras/modules/entity/EntitySpawn.java

@@ -168,6 +168,19 @@ class EntitySpawn implements Listener {
 		}
 		return false;
 	}
+	
+	private boolean isOutsideBoundaries(double X, double Y, double Z) {
+		int roundedX = (int) Math.round(X);
+		int roundedY = (int) Math.round(Y);
+		int roundedZ = (int) Math.round(Z);
+
+		if (X != roundedX ||
+			Y != roundedY ||
+			Z != roundedZ) {
+			return true;
+		}
+		return false;
+	}
 
 	/*public static boolean isIllegalItem(ItemStack item) {
 		try {
@@ -257,6 +270,15 @@ class EntitySpawn implements Listener {
 	@EventHandler
 	void onEntityAddToWorld(EntityAddToWorldEvent event) {
 		final Entity entity = event.getEntity();
+		double X = entity.getLocation().getX();
+		double Y = entity.getLocation().getY();
+		double Z = entity.getLocation().getZ();
+
+		if (isOutsideBoundaries(X, Y, Z)) {
+			entity.remove();
+			return;
+		}
+
 		final World world = entity.getWorld();
 		final Chunk chunk = entity.getChunk();
 		
@@ -276,9 +298,36 @@ class EntitySpawn implements Listener {
 			checkShouldRemoveEntities(world);
 		}
 	}
+	
+	/*@EventHandler
+	void onEntityAirChangeEvent(EntityAirChangeEvent event) {
+		final Entity entity = event.getEntity();
+		double X = entity.getLocation().getX();
+		double Y = entity.getLocation().getY();
+		double Z = entity.getLocation().getZ();
+		
+		System.out.println(X);
+		System.out.println(Y);
+		System.out.println(Z);
+		System.out.println(entity.getChunk().getX());
+		System.out.println(entity.getChunk().getZ());
+
+		if (isOutsideBoundaries(X, Y, Z)) {
+			entity.remove();
+		}
+	}*/
 
 	@EventHandler
 	void onEntitySpawn(EntitySpawnEvent event) {
+		double X = event.getLocation().getX();
+		double Y = event.getLocation().getY();
+		double Z = event.getLocation().getZ();
+
+		if (isOutsideBoundaries(X, Y, Z)) {
+			event.setCancelled(true);
+			return;
+		}
+
 		final Entity entity = event.getEntity();
 		final EntityType entityType = entity.getType();
 		final Chunk chunk = entity.getChunk();

src/main/java/pw/kaboom/extras/modules/entity/EntityTeleport.java

@@ -0,0 +1,23 @@
+package pw.kaboom.extras;
+
+import org.bukkit.Location;
+import org.bukkit.World;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+
+import org.bukkit.event.entity.EntityTeleportEvent;
+
+class EntityTeleport implements Listener {
+	@EventHandler
+	void onEntityTeleport(EntityTeleportEvent event) {
+		final World world = event.getTo().getWorld();
+		int X = (int) Math.round(event.getTo().getX());
+		int Y = (int) Math.round(event.getTo().getY());
+		int Z = (int) Math.round(event.getTo().getZ());
+		
+		event.setTo(
+			new Location(world, X, Y, Z)
+		);
+	}
+}

src/main/java/pw/kaboom/extras/modules/player/PlayerDamage.java

@@ -21,6 +21,9 @@ import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
 import org.bukkit.event.entity.PlayerDeathEvent;
 
+import org.bukkit.event.entity.EntityTeleportEvent;
+import org.bukkit.event.player.PlayerTeleportEvent;
+
 import org.bukkit.inventory.ItemStack;
 
 class PlayerDamage implements Listener {

src/main/java/pw/kaboom/extras/modules/player/PlayerTeleport.java

@@ -0,0 +1,23 @@
+package pw.kaboom.extras;
+
+import org.bukkit.Location;
+import org.bukkit.World;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+
+import org.bukkit.event.player.PlayerTeleportEvent;
+
+class PlayerTeleport implements Listener {
+	@EventHandler
+	void onPlayerTeleport(PlayerTeleportEvent event) {
+		final World world = event.getTo().getWorld();
+		int X = (int) Math.round(event.getTo().getX());
+		int Y = (int) Math.round(event.getTo().getY());
+		int Z = (int) Math.round(event.getTo().getZ());
+		
+		event.setTo(
+			new Location(world, X, Y, Z)
+		);
+	}
+}