Added more

README.md

@@ -5,10 +5,14 @@ A Minecraft plugin that renders visible particle forcefields around WorldGuard r
 ## Features
 
 - Automatically detects WorldGuard regions with `entry deny` flag
-- Renders particle forcefields only visible to players who cannot enter
+- Renders **visible glass pane barriers** and particle effects for blocked regions
+- Only shows forcefields to players who **actually cannot enter** (respects bypass permissions and ops)
+- Glass panes only placed where there's currently air (doesn't cover existing blocks)
 - Configurable particle color, size, spacing, and render distance
+- Configurable block material (glass panes, barriers, etc.)
 - Supports cuboid and polygonal region types
 - Performance-optimized with distance-based rendering
+- Automatic cleanup when players move away or disconnect
 - Clean, readable, and well-documented code
 
 ## Requirements
@@ -85,14 +89,27 @@ particle-color:
 
 # Particle size (0.5-2.0 recommended)
 particle-size: 1.0
+
+# Block rendering settings
+# Whether to render actual blocks (glass panes) in addition to particles
+render-blocks: true
+
+# Distance between blocks (in blocks)
+block-spacing: 1.0
+
+# Block material to use (e.g., PURPLE_STAINED_GLASS_PANE, BARRIER, GLASS)
+block-material: PURPLE_STAINED_GLASS_PANE
 ```
 
 ## Performance Tips
 
 - Reduce `max-render-distance` for servers with many regions
 - Increase `particle-spacing` to reduce particle count
+- Increase `block-spacing` to reduce block count
+- Set `render-blocks: false` to disable glass panes and only use particles
 - Set `render-walls: false` to only show edges
 - Increase `update-interval-ticks` if you don't need real-time updates
+- Use `BARRIER` blocks instead of glass panes (less visible but lighter)
 
 ## Troubleshooting
 
@@ -102,8 +119,10 @@ particle-size: 1.0
 2. Check the server console for debug messages
 3. Use `/forcefield info` to see if regions are being detected
 4. Verify the region has `entry deny` set: `/rg info <region>`
-5. Check you're not a member/owner of the region
+5. **Check you can't actually enter** - ops and members won't see forcefields
 6. Ensure you're within render distance of the region (default: 100 blocks)
+7. Try setting `render-blocks: true` if you only see particles
+8. Check that locations aren't already occupied by blocks
 
 ### Plugin won't load
 

src/main/java/loganintech/regionforcefield/RegionForcefieldPlugin.java

@@ -2,6 +2,7 @@ package loganintech.regionforcefield;
 
 import loganintech.regionforcefield.command.ForcefieldCommand;
 import loganintech.regionforcefield.forcefield.ForcefieldRenderer;
+import loganintech.regionforcefield.listener.PlayerListener;
 import loganintech.regionforcefield.region.RegionPermissionChecker;
 import loganintech.regionforcefield.task.ForcefieldUpdateTask;
 import org.bukkit.command.PluginCommand;
@@ -35,6 +36,9 @@ public final class RegionForcefieldPlugin extends JavaPlugin {
             this.permissionChecker = new RegionPermissionChecker(this);
             this.forcefieldRenderer = new ForcefieldRenderer(this);
 
+            // Register listeners
+            getServer().getPluginManager().registerEvents(new PlayerListener(this), this);
+
             // Register commands
             ForcefieldCommand commandExecutor = new ForcefieldCommand(this);
             PluginCommand command = getCommand("forcefield");

src/main/java/loganintech/regionforcefield/forcefield/ForcefieldRenderer.java

@@ -5,15 +5,19 @@ import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldguard.protection.regions.ProtectedCuboidRegion;
 import com.sk89q.worldguard.protection.regions.ProtectedPolygonalRegion;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
+import loganintech.regionforcefield.RegionForcefieldPlugin;
 import org.bukkit.Color;
 import org.bukkit.Location;
+import org.bukkit.Material;
 import org.bukkit.Particle;
-import loganintech.regionforcefield.RegionForcefieldPlugin;
 import org.bukkit.World;
+import org.bukkit.block.data.BlockData;
 import org.bukkit.entity.Player;
 import org.jetbrains.annotations.NotNull;
 
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 /**
  * Renders particle forcefields around protected regions.
@@ -23,6 +27,8 @@ public class ForcefieldRenderer {
     private final RegionForcefieldPlugin plugin;
     private final double particleSpacing;
     private final Particle.DustOptions dustOptions;
+    private final PlayerBlockTracker blockTracker;
+    private final BlockData glassBlockData;
 
     /**
      * Creates a new forcefield renderer.
@@ -32,6 +38,7 @@ public class ForcefieldRenderer {
     public ForcefieldRenderer(@NotNull RegionForcefieldPlugin plugin) {
         this.plugin = plugin;
         this.particleSpacing = plugin.getConfig().getDouble("particle-spacing", 0.5);
+        this.blockTracker = new PlayerBlockTracker();
 
         // Get color from config or use default (purple)
         int red = plugin.getConfig().getInt("particle-color.red", 147);
@@ -40,6 +47,27 @@ public class ForcefieldRenderer {
         float size = (float) plugin.getConfig().getDouble("particle-size", 1.0);
 
         this.dustOptions = new Particle.DustOptions(Color.fromRGB(red, green, blue), size);
+
+        // Get block material from config or use purple stained glass pane
+        String materialName = plugin.getConfig().getString("block-material", "PURPLE_STAINED_GLASS_PANE");
+        Material material;
+        try {
+            material = Material.valueOf(materialName.toUpperCase());
+        } catch (IllegalArgumentException e) {
+            plugin.getLogger().warning("Invalid block material '" + materialName + "', using PURPLE_STAINED_GLASS_PANE");
+            material = Material.PURPLE_STAINED_GLASS_PANE;
+        }
+        this.glassBlockData = material.createBlockData();
+    }
+
+    /**
+     * Gets the block tracker for managing fake blocks.
+     *
+     * @return the block tracker
+     */
+    @NotNull
+    public PlayerBlockTracker getBlockTracker() {
+        return blockTracker;
     }
 
     /**
@@ -48,49 +76,59 @@ public class ForcefieldRenderer {
      * @param player the player to show the forcefield to
      * @param region the region to render
      * @param world  the world the region is in
+     * @return set of block locations that were rendered
      */
-    public void renderForcefield(@NotNull Player player, @NotNull ProtectedRegion region, @NotNull World world) {
+    @NotNull
+    public Set<Location> renderForcefield(@NotNull Player player, @NotNull ProtectedRegion region, @NotNull World world) {
+        Set<Location> newBlocks = new HashSet<>();
+
         try {
             plugin.debug("Rendering forcefield for region " + region.getId() + " to player " + player.getName());
 
             if (region instanceof ProtectedCuboidRegion) {
-                renderCuboidForcefield(player, (ProtectedCuboidRegion) region, world);
+                renderCuboidForcefield(player, (ProtectedCuboidRegion) region, world, newBlocks);
             } else if (region instanceof ProtectedPolygonalRegion) {
-                renderPolygonalForcefield(player, (ProtectedPolygonalRegion) region, world);
+                renderPolygonalForcefield(player, (ProtectedPolygonalRegion) region, world, newBlocks);
             } else {
                 // For other region types, fall back to rendering a bounding box
                 plugin.debug("Using bounding box for region type: " + region.getClass().getSimpleName());
-                renderBoundingBoxForcefield(player, region, world);
+                renderBoundingBoxForcefield(player, region, world, newBlocks);
             }
+
+            plugin.debug("Rendered " + newBlocks.size() + " blocks for region " + region.getId());
         } catch (Exception e) {
             plugin.getLogger().warning("Error rendering forcefield for region " + region.getId() + ": " + e.getMessage());
             e.printStackTrace();
         }
+
+        return newBlocks;
     }
 
     /**
      * Renders a forcefield for a cuboid region.
      */
-    private void renderCuboidForcefield(@NotNull Player player, @NotNull ProtectedCuboidRegion region, @NotNull World world) {
+    private void renderCuboidForcefield(@NotNull Player player, @NotNull ProtectedCuboidRegion region,
+                                       @NotNull World world, @NotNull Set<Location> blocks) {
         BlockVector3 min = region.getMinimumPoint();
         BlockVector3 max = region.getMaximumPoint();
 
         // Render vertical edges
-        renderVerticalEdges(player, world, min, max);
+        renderVerticalEdges(player, world, min, max, blocks);
 
         // Render horizontal edges at top and bottom
-        renderHorizontalEdges(player, world, min, max);
+        renderHorizontalEdges(player, world, min, max, blocks);
 
         // Optionally render faces (walls)
         if (plugin.getConfig().getBoolean("render-walls", true)) {
-            renderWalls(player, world, min, max);
+            renderWalls(player, world, min, max, blocks);
         }
     }
 
     /**
      * Renders a forcefield for a polygonal region.
      */
-    private void renderPolygonalForcefield(@NotNull Player player, @NotNull ProtectedPolygonalRegion region, @NotNull World world) {
+    private void renderPolygonalForcefield(@NotNull Player player, @NotNull ProtectedPolygonalRegion region,
+                                          @NotNull World world, @NotNull Set<Location> blocks) {
         List<BlockVector2> points = region.getPoints();
         int minY = region.getMinimumPoint().y();
         int maxY = region.getMaximumPoint().y();
@@ -100,64 +138,71 @@ public class ForcefieldRenderer {
             BlockVector2 point1 = points.get(i);
             BlockVector2 point2 = points.get((i + 1) % points.size());
 
-            renderVerticalWall(player, world, point1.x(), point1.z(), point2.x(), point2.z(), minY, maxY);
+            renderVerticalWall(player, world, point1.x(), point1.z(), point2.x(), point2.z(), minY, maxY, blocks);
         }
     }
 
     /**
      * Renders a bounding box forcefield for unsupported region types.
      */
-    private void renderBoundingBoxForcefield(@NotNull Player player, @NotNull ProtectedRegion region, @NotNull World world) {
+    private void renderBoundingBoxForcefield(@NotNull Player player, @NotNull ProtectedRegion region,
+                                            @NotNull World world, @NotNull Set<Location> blocks) {
         BlockVector3 min = region.getMinimumPoint();
         BlockVector3 max = region.getMaximumPoint();
 
-        renderVerticalEdges(player, world, min, max);
-        renderHorizontalEdges(player, world, min, max);
+        renderVerticalEdges(player, world, min, max, blocks);
+        renderHorizontalEdges(player, world, min, max, blocks);
     }
 
     /**
      * Renders the vertical edges of a cuboid.
      */
-    private void renderVerticalEdges(@NotNull Player player, @NotNull World world, @NotNull BlockVector3 min, @NotNull BlockVector3 max) {
+    private void renderVerticalEdges(@NotNull Player player, @NotNull World world,
+                                     @NotNull BlockVector3 min, @NotNull BlockVector3 max,
+                                     @NotNull Set<Location> blocks) {
         // Four vertical edges
-        renderLine(player, world, min.x(), min.y(), min.z(), min.x(), max.y(), min.z());
-        renderLine(player, world, max.x(), min.y(), min.z(), max.x(), max.y(), min.z());
-        renderLine(player, world, min.x(), min.y(), max.z(), min.x(), max.y(), max.z());
-        renderLine(player, world, max.x(), min.y(), max.z(), max.x(), max.y(), max.z());
+        renderLine(player, world, min.x(), min.y(), min.z(), min.x(), max.y(), min.z(), blocks);
+        renderLine(player, world, max.x(), min.y(), min.z(), max.x(), max.y(), min.z(), blocks);
+        renderLine(player, world, min.x(), min.y(), max.z(), min.x(), max.y(), max.z(), blocks);
+        renderLine(player, world, max.x(), min.y(), max.z(), max.x(), max.y(), max.z(), blocks);
     }
 
     /**
      * Renders the horizontal edges of a cuboid.
      */
-    private void renderHorizontalEdges(@NotNull Player player, @NotNull World world, @NotNull BlockVector3 min, @NotNull BlockVector3 max) {
+    private void renderHorizontalEdges(@NotNull Player player, @NotNull World world,
+                                       @NotNull BlockVector3 min, @NotNull BlockVector3 max,
+                                       @NotNull Set<Location> blocks) {
         // Bottom edges
-        renderLine(player, world, min.x(), min.y(), min.z(), max.x(), min.y(), min.z());
-        renderLine(player, world, min.x(), min.y(), max.z(), max.x(), min.y(), max.z());
-        renderLine(player, world, min.x(), min.y(), min.z(), min.x(), min.y(), max.z());
-        renderLine(player, world, max.x(), min.y(), min.z(), max.x(), min.y(), max.z());
+        renderLine(player, world, min.x(), min.y(), min.z(), max.x(), min.y(), min.z(), blocks);
+        renderLine(player, world, min.x(), min.y(), max.z(), max.x(), min.y(), max.z(), blocks);
+        renderLine(player, world, min.x(), min.y(), min.z(), min.x(), min.y(), max.z(), blocks);
+        renderLine(player, world, max.x(), min.y(), min.z(), max.x(), min.y(), max.z(), blocks);
 
         // Top edges
-        renderLine(player, world, min.x(), max.y(), min.z(), max.x(), max.y(), min.z());
-        renderLine(player, world, min.x(), max.y(), max.z(), max.x(), max.y(), max.z());
-        renderLine(player, world, min.x(), max.y(), min.z(), min.x(), max.y(), max.z());
-        renderLine(player, world, max.x(), max.y(), min.z(), max.x(), max.y(), max.z());
+        renderLine(player, world, min.x(), max.y(), min.z(), max.x(), max.y(), min.z(), blocks);
+        renderLine(player, world, min.x(), max.y(), max.z(), max.x(), max.y(), max.z(), blocks);
+        renderLine(player, world, min.x(), max.y(), min.z(), min.x(), max.y(), max.z(), blocks);
+        renderLine(player, world, max.x(), max.y(), min.z(), max.x(), max.y(), max.z(), blocks);
     }
 
     /**
      * Renders the walls (faces) of a cuboid.
      */
-    private void renderWalls(@NotNull Player player, @NotNull World world, @NotNull BlockVector3 min, @NotNull BlockVector3 max) {
+    private void renderWalls(@NotNull Player player, @NotNull World world,
+                            @NotNull BlockVector3 min, @NotNull BlockVector3 max,
+                            @NotNull Set<Location> blocks) {
         // North wall (min Z)
-        renderVerticalWall(player, world, min.x(), min.z(), max.x(), min.z(), min.y(), max.y());
+        renderVerticalWall(player, world, min.x(), min.z(), max.x(), min.z(), min.y(), max.y(), blocks);
 
         // South wall (max Z)
-        renderVerticalWall(player, world, min.x(), max.z(), max.x(), max.z(), min.y(), max.y());
+        renderVerticalWall(player, world, min.x(), max.z(), max.x(), max.z(), min.y(), max.y(), blocks);
 
         // West wall (min X)
-        renderVerticalWall(player, world, min.x(), min.z(), min.x(), max.z(), min.y(), max.y());
+        renderVerticalWall(player, world, min.x(), min.z(), min.x(), max.z(), min.y(), max.y(), blocks);
 
         // East wall (max X)
-        renderVerticalWall(player, world, max.x(), min.z(), max.x(), max.z(), min.y(), max.y());
+        renderVerticalWall(player, world, max.x(), min.z(), max.x(), max.z(), min.y(), max.y(), blocks);
     }
 
     /**
@@ -165,10 +210,11 @@ public class ForcefieldRenderer {
      */
     private void renderVerticalWall(@NotNull Player player, @NotNull World world,
                                     double x1, double z1, double x2, double z2,
-                                    double minY, double maxY) {
+                                    double minY, double maxY, @NotNull Set<Location> blocks) {
         double distance = Math.sqrt(Math.pow(x2 - x1, 2) + Math.pow(z2 - z1, 2));
         int horizontalSteps = (int) Math.ceil(distance / particleSpacing);
         int verticalSteps = (int) Math.ceil((maxY - minY) / particleSpacing);
+        double blockSpacing = plugin.getConfig().getDouble("block-spacing", 1.0);
 
         for (int i = 0; i <= horizontalSteps; i++) {
             double t = horizontalSteps > 0 ? (double) i / horizontalSteps : 0;
@@ -178,6 +224,12 @@ public class ForcefieldRenderer {
             for (int j = 0; j <= verticalSteps; j++) {
                 double y = minY + (maxY - minY) * ((double) j / verticalSteps);
                 spawnParticle(player, world, x, y, z);
+
+                // Place blocks at intervals
+                if (i % ((int) Math.max(1, blockSpacing / particleSpacing)) == 0 &&
+                    j % ((int) Math.max(1, blockSpacing / particleSpacing)) == 0) {
+                    placeBlock(player, world, x, y, z, blocks);
+                }
             }
         }
     }
@@ -187,7 +239,8 @@ public class ForcefieldRenderer {
      */
     private void renderLine(@NotNull Player player, @NotNull World world,
                            double x1, double y1, double z1,
-                           double x2, double y2, double z2) {
+                           double x2, double y2, double z2,
+                           @NotNull Set<Location> blocks) {
         double distance = Math.sqrt(
             Math.pow(x2 - x1, 2) +
             Math.pow(y2 - y1, 2) +
@@ -195,6 +248,7 @@ public class ForcefieldRenderer {
         );
 
         int steps = (int) Math.ceil(distance / particleSpacing);
+        double blockSpacing = plugin.getConfig().getDouble("block-spacing", 1.0);
 
         for (int i = 0; i <= steps; i++) {
             double t = steps > 0 ? (double) i / steps : 0;
@@ -203,6 +257,11 @@ public class ForcefieldRenderer {
             double z = z1 + (z2 - z1) * t;
 
             spawnParticle(player, world, x, y, z);
+
+            // Place blocks at intervals
+            if (i % ((int) Math.max(1, blockSpacing / particleSpacing)) == 0) {
+                placeBlock(player, world, x, y, z, blocks);
+            }
         }
     }
 
@@ -213,4 +272,63 @@ public class ForcefieldRenderer {
         Location location = new Location(world, x, y, z);
         player.spawnParticle(Particle.DUST, location, 1, 0, 0, 0, 0, dustOptions);
     }
+
+    /**
+     * Places a fake block at the specified location if it's air.
+     *
+     * @param player the player to send the block to
+     * @param world  the world
+     * @param x      the x coordinate
+     * @param y      the y coordinate
+     * @param z      the z coordinate
+     * @param blocks the set to add this block location to
+     */
+    private void placeBlock(@NotNull Player player, @NotNull World world,
+                           double x, double y, double z, @NotNull Set<Location> blocks) {
+        if (!plugin.getConfig().getBoolean("render-blocks", true)) {
+            return;
+        }
+
+        Location location = new Location(world, Math.floor(x), Math.floor(y), Math.floor(z));
+
+        // Only place blocks where there's currently air
+        if (location.getBlock().getType() == Material.AIR) {
+            player.sendBlockChange(location, glassBlockData);
+            blocks.add(location);
+        }
+    }
+
+    /**
+     * Clears all fake blocks for a player by restoring the real blocks.
+     *
+     * @param player the player
+     */
+    public void clearBlocks(@NotNull Player player) {
+        Set<Location> blocks = blockTracker.getBlocks(player);
+        for (Location location : blocks) {
+            // Send the real block data back to the player
+            player.sendBlockChange(location, location.getBlock().getBlockData());
+        }
+        blockTracker.clearPlayer(player);
+    }
+
+    /**
+     * Updates blocks for a player based on new blocks that should be visible.
+     *
+     * @param player    the player
+     * @param newBlocks the new set of blocks to show
+     */
+    public void updateBlocks(@NotNull Player player, @NotNull Set<Location> newBlocks) {
+        Set<Location> oldBlocks = blockTracker.getBlocks(player);
+
+        // Remove blocks that are no longer needed
+        for (Location location : oldBlocks) {
+            if (!newBlocks.contains(location)) {
+                player.sendBlockChange(location, location.getBlock().getBlockData());
+            }
+        }
+
+        // Update the tracker
+        blockTracker.setBlocks(player, newBlocks);
+    }
 }

src/main/java/loganintech/regionforcefield/region/RegionPermissionChecker.java

@@ -83,21 +83,32 @@ public class RegionPermissionChecker {
     }
 
     /**
-     * Checks if a player can enter a specific region.
+     * Checks if a player can actually enter a region.
+     * Takes into account entry deny flag, bypass permissions, and member/owner status.
      *
      * @param player the player to check
      * @param region the region to check
-     * @return true if the player can enter, false otherwise
+     * @return true if the player CAN enter (no forcefield), false if blocked (show forcefield)
      */
     private boolean canEnterRegion(@NotNull LocalPlayer player, @NotNull ProtectedRegion region) {
         // Check the ENTRY flag
-        // If ENTRY is set to DENY, the player cannot enter unless they have bypass permissions
         if (region.getFlag(Flags.ENTRY) == com.sk89q.worldguard.protection.flags.StateFlag.State.DENY) {
+            // Check if player has bypass permission (includes ops)
+            if (player.hasPermission("worldguard.region.bypass." + region.getId()) ||
+                player.hasPermission("worldguard.region.bypass.*")) {
+                return true;  // Can enter (has bypass), no forcefield
+            }
+
             // Check if the player is a member or owner of the region
-            return region.isMember(player) || region.isOwner(player);
+            if (region.isMember(player) || region.isOwner(player)) {
+                return true;  // Can enter (is member/owner), no forcefield
+            }
+
+            // Player cannot enter, show forcefield
+            return false;
         }
 
-        // If ENTRY is not explicitly denied, the player can enter
+        // If ENTRY is not explicitly denied, player can enter
         return true;
     }
 }

src/main/java/loganintech/regionforcefield/task/ForcefieldUpdateTask.java

@@ -4,10 +4,12 @@ import loganintech.regionforcefield.RegionForcefieldPlugin;
 import loganintech.regionforcefield.forcefield.ForcefieldRenderer;
 import loganintech.regionforcefield.region.RegionPermissionChecker;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
+import org.bukkit.Location;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitRunnable;
 import org.jetbrains.annotations.NotNull;
 
+import java.util.HashSet;
 import java.util.Set;
 
 /**
@@ -41,24 +43,30 @@ public class ForcefieldUpdateTask extends BukkitRunnable {
         try {
             // Iterate through all online players
             for (Player player : plugin.getServer().getOnlinePlayers()) {
-                // Get all regions the player cannot enter in their current world
+                // Get all regions the player should see forcefields for
                 Set<ProtectedRegion> blockedRegions = permissionChecker.getBlockedRegions(player, player.getWorld());
 
                 if (!blockedRegions.isEmpty()) {
                     plugin.debug("Processing " + blockedRegions.size() + " blocked regions for " + player.getName());
                 }
 
-                // Render forcefields for nearby blocked regions
+                // Collect all blocks that should be rendered for this player
+                Set<Location> allBlocks = new HashSet<>();
                 int rendered = 0;
+
                 for (ProtectedRegion region : blockedRegions) {
                     if (isRegionNearPlayer(player, region)) {
-                        forcefieldRenderer.renderForcefield(player, region, player.getWorld());
+                        Set<Location> regionBlocks = forcefieldRenderer.renderForcefield(player, region, player.getWorld());
+                        allBlocks.addAll(regionBlocks);
                         rendered++;
                     }
                 }
 
+                // Update the player's blocks (remove old ones, keep new ones)
+                forcefieldRenderer.updateBlocks(player, allBlocks);
+
                 if (rendered > 0) {
-                    plugin.debug("Rendered " + rendered + " forcefields for " + player.getName());
+                    plugin.debug("Rendered " + rendered + " forcefields (" + allBlocks.size() + " blocks) for " + player.getName());
                 }
             }
         } catch (Exception e) {

src/main/resources/config.yml

@@ -26,3 +26,17 @@ particle-color:
 
 # Particle size (recommended range: 0.5 to 2.0)
 particle-size: 1.0
+
+# Block rendering settings
+# Whether to render actual blocks (glass panes) in addition to particles
+render-blocks: true
+
+# Distance between blocks (in blocks)
+# Higher values = fewer blocks = better performance
+# Must be >= particle-spacing
+block-spacing: 1.0
+
+# Block material to use for forcefields
+# Examples: PURPLE_STAINED_GLASS_PANE, BARRIER, GLASS, LIGHT_BLUE_STAINED_GLASS
+# See https://hub.spigotmc.org/javadocs/spigot/org/bukkit/Material.html for all options
+block-material: PURPLE_STAINED_GLASS_PANE