Added config.yml

    Possible fix for ISSUE #1

.gitignore

@@ -1,4 +1,5 @@
 # Project exclude paths
 /.gradle/
 /build/
-/build/classes/java/main/
+/build/classes/java/main/
+/.idea/modules/

build.gradle

@@ -3,7 +3,7 @@ plugins {
 }
 
 group = 'geometrical'
-version = '1.0.1-folia'
+version = '1.1.0-folia'
 
 repositories {
     mavenCentral()

src/main/java/geometrical/anr/AntiNetherRoof.java

@@ -8,7 +8,8 @@ public final class AntiNetherRoof extends JavaPlugin {
 
     @Override
     public void onEnable() {
-        Bukkit.getPluginManager().registerEvents(new NetherRoofListener(), this);
+        saveDefaultConfig();
+        Bukkit.getPluginManager().registerEvents(new NetherRoofListener(this), this);
 
         int pluginId = 24530;
         Metrics metrics = new Metrics(this, pluginId);

src/main/java/geometrical/anr/events/NetherRoofListener.java

@@ -1,17 +1,33 @@
 package geometrical.anr.events;
 
+import geometrical.anr.AntiNetherRoof;
+import org.bukkit.ChatColor;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerMoveEvent;
 
 public final class NetherRoofListener implements Listener {
     private static final String BYPASS_PERMISSION = "preventnetherroof.bypass";
+    private final AntiNetherRoof plugin;
+    private final String notAllowedMessage;
+    private final String safeLocationMessage;
+    private final boolean showNotAllowedMessage;
+    private final boolean showSafeLocationMessage;
+
+    public NetherRoofListener(AntiNetherRoof plugin) {
+        this.plugin = plugin;
+        this.notAllowedMessage = plugin.getConfig().getString("not-allowed-message", "You are not allowed on the Nether roof!");
+        this.safeLocationMessage = plugin.getConfig().getString("safe-location-message", "You have been moved to a safe location.");
+        this.showNotAllowedMessage = plugin.getConfig().getBoolean("show-not-allowed-message", true);
+        this.showSafeLocationMessage = plugin.getConfig().getBoolean("show-safe-location-message", true);
+    }
 
-    @EventHandler
+    @EventHandler(priority = EventPriority.HIGH)
     public void onPlayerMove(PlayerMoveEvent event) {
         Player player = event.getPlayer();
         Location from = event.getFrom();
@@ -25,14 +41,26 @@ public void onPlayerMove(PlayerMoveEvent event) {
             if (to.getY() > 127) {
                 Location safeLocation = findSafeLocationBelow(to);
 
-                if (safeLocation != null) {
-                    if (!isSameBlock(from, safeLocation)) {
-                        event.setTo(safeLocation);
+                if (safeLocation != null && !isSamePosition(from, safeLocation)) {
+                    event.setTo(safeLocation);
+                    if(showNotAllowedMessage == true) {
+                        player.sendMessage(ChatColor.RED + notAllowedMessage);
+                    }
+
+                    if(showSafeLocationMessage == true) {
+                        player.sendMessage(ChatColor.RED + safeLocationMessage);
                     }
                 } else {
                     Location fallbackLocation = getFallbackLocation(to);
-                    if (!isSameBlock(from, fallbackLocation)) {
+                    if (!isSamePosition(from, fallbackLocation)) {
                         event.setTo(fallbackLocation);
+                        if(showNotAllowedMessage == true) {
+                            player.sendMessage(ChatColor.RED + notAllowedMessage);
+                        }
+
+                        if(showSafeLocationMessage == true) {
+                            player.sendMessage(ChatColor.RED + safeLocationMessage);
+                        }
                     }
                 }
             }
@@ -47,13 +75,12 @@ private Location findSafeLocationBelow(Location startLocation) {
         int x = startLocation.getBlockX();
         int z = startLocation.getBlockZ();
 
-        for (int y = startY - 3; y >= world.getMinHeight(); y--) {
+        for (int y = startY - 3; y >= 0; y--) {
             Location checkLocation = new Location(world, x + 0.5, y, z + 0.5);
             Location belowLocation = new Location(world, x + 0.5, y - 1, z + 0.5);
 
             if (checkLocation.getBlock().getType() == Material.AIR &&
                     belowLocation.getBlock().getType().isSolid()) {
-
                 checkLocation.setPitch(startLocation.getPitch());
                 checkLocation.setYaw(startLocation.getYaw());
                 return checkLocation;
@@ -71,14 +98,13 @@ private Location getFallbackLocation(Location startLocation) {
         int z = startLocation.getBlockZ();
 
         Location fallbackLocation = new Location(world, x + 0.5, fallbackY, z + 0.5);
-
         fallbackLocation.setPitch(startLocation.getPitch());
         fallbackLocation.setYaw(startLocation.getYaw());
 
         return fallbackLocation;
     }
 
-    private boolean isSameBlock(Location loc1, Location loc2) {
+    private boolean isSamePosition(Location loc1, Location loc2) {
         if (loc1 == null || loc2 == null) return false;
         return loc1.getBlockX() == loc2.getBlockX() &&
                 loc1.getBlockY() == loc2.getBlockY() &&

src/main/resources/config.yml

@@ -0,0 +1,5 @@
+not-allowed-message: "You are not allowed on the Nether roof!"
+safe-location-message: "You have been moved to a safe location."
+
+show-not-allowed-message: true
+show-safe-location-message: true

src/main/resources/plugin.yml

@@ -1,5 +1,5 @@
 name: AntiNetherRoof
-version: '1.0.1'
+version: '1.1.0'
 main: geometrical.anr.AntiNetherRoof
 api-version: '1.19'
 folia-supported: true