Change trailer from blocks to particles.

commons/src/main/java/me/totalfreedom/totalfreedommod/api/Interpolator.java

@@ -0,0 +1,7 @@
+package me.totalfreedom.totalfreedommod.api;
+
+@FunctionalInterface
+public interface Interpolator
+{
+    double[] interpolate(double from, double to, int max);
+}

commons/src/main/java/me/totalfreedom/totalfreedommod/fun/Trailer.java

@@ -1,28 +1,22 @@
 package me.totalfreedom.totalfreedommod.fun;
 
-import java.util.HashSet;
-import java.util.Objects;
-import java.util.Set;
-import java.util.SplittableRandom;
-import java.util.UUID;
-
 import me.totalfreedom.totalfreedommod.FreedomService;
 import me.totalfreedom.totalfreedommod.api.ShopItem;
-import me.totalfreedom.totalfreedommod.util.Groups;
+import me.totalfreedom.totalfreedommod.util.ParticleDisplay;
-import org.bukkit.Location;
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.block.Block;
-import org.bukkit.block.data.BlockData;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.player.PlayerMoveEvent;
 
+import java.util.HashMap;
+import java.util.Map;
+import java.util.SplittableRandom;
+import java.util.UUID;
+
 public class Trailer extends FreedomService
 {
     private final SplittableRandom random = new SplittableRandom();
-    private final Set<UUID> trailPlayers = new HashSet<>(); // player UUID
+    private final Map<UUID, ParticleDisplay> trailPlayers = new HashMap<>(); // player UUID and relative particle instance.
 
     @Override
     public void onStart()
@@ -46,42 +40,15 @@ public class Trailer extends FreedomService
          * - The player doesn't have permission to modify blocks in their current world
          */
         if (trailPlayers.isEmpty()
-                || !trailPlayers.contains(event.getPlayer().getUniqueId())
+                || !trailPlayers.containsKey(event.getPlayer().getUniqueId())
-                || !plugin.pl.getData(event.getPlayer()).hasItem(ShopItem.RAINBOW_TRAIL)
+                || !plugin.pl.getData(event.getPlayer()).hasItem(ShopItem.RAINBOW_TRAIL))
-                || plugin.wr.doRestrict(event.getPlayer())
-                || !plugin.wgb.canEditCurrentWorld(event.getPlayer()))
         {
             return;
         }
 
-        Block fromBlock = event.getFrom().getBlock();
+        final Player player = event.getPlayer();
-        if (!fromBlock.isEmpty())
+        final ParticleDisplay particleDisplay = trailPlayers.get(player.getUniqueId());
-        {
+        particleDisplay.spawnNext(player);
-            return;
-        }
-
-        Block toBlock = Objects.requireNonNull(event.getTo()).getBlock();
-        if (fromBlock.equals(toBlock))
-        {
-            return;
-        }
-
-        // TODO: Make this particles instead of blocks!
-        fromBlock.setType(Groups.WOOL_COLORS.get(random.nextInt(Groups.WOOL_COLORS.size())));
-        BlockData data = fromBlock.getBlockData();
-        Material material = Material.getMaterial(String.valueOf(fromBlock.getType()));
-        for (int x = -1; x <= 1; x++)
-        {
-            for (int z = -1; z <= 1; z++)
-            {
-                final Location trail_pos;
-                trail_pos = new Location(event.getPlayer().getWorld(), fromBlock.getX() + x, fromBlock.getY(), fromBlock.getZ() + z);
-                if (trailPlayers.contains(event.getPlayer().getUniqueId()) && plugin.cpb.isEnabled())
-                {
-                    plugin.cpb.getCoreProtectAPI().logPlacement(event.getPlayer().getName(), trail_pos, material, data);
-                }
-            }
-        }
     }
 
     public void remove(Player player)
@@ -91,11 +58,13 @@ public class Trailer extends FreedomService
 
     public void add(Player player)
     {
-        trailPlayers.add(player.getUniqueId());
+        if (trailPlayers.containsKey(player.getUniqueId())) return;
+
+        trailPlayers.put(player.getUniqueId(), new ParticleDisplay());
     }
 
     public boolean contains(Player player)
     {
-        return trailPlayers.contains(player.getUniqueId());
+        return trailPlayers.containsKey(player.getUniqueId());
     }
 }

commons/src/main/java/me/totalfreedom/totalfreedommod/util/Groups.java

@@ -1,19 +1,22 @@
 package me.totalfreedom.totalfreedommod.util;
 
-import java.util.Arrays;
-import java.util.List;
 import org.bukkit.Material;
 import org.bukkit.block.Biome;
 import org.bukkit.entity.EntityType;
 
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.stream.Collectors;
+
 public class Groups
 {
-    public static final List<Material> WOOL_COLORS = Arrays.stream(Material.values()).filter((m) -> m.name().endsWith("_WOOL")).toList();
+    public static final Set<Material> WOOL_COLORS = Arrays.stream(Material.values()).filter((m) -> m.name().endsWith("_WOOL")).collect(Collectors.toSet());
-    public static final List<Material> SHULKER_BOXES = Arrays.stream(Material.values()).filter((m) -> m.name().endsWith("SHULKER_BOX")).toList();
+    public static final Set<Material> SHULKER_BOXES = Arrays.stream(Material.values()).filter((m) -> m.name().endsWith("SHULKER_BOX")).collect(Collectors.toSet());
-    public static final List<EntityType> MOB_TYPES = Arrays.stream(EntityType.values()).filter(EntityType::isAlive).filter(EntityType::isSpawnable).toList();
+    public static final Set<EntityType> MOB_TYPES = Arrays.stream(EntityType.values()).filter(EntityType::isAlive).filter(EntityType::isSpawnable).collect(Collectors.toSet());
-    public static final List<Material> SPAWN_EGGS = Arrays.stream(Material.values()).filter((mat) -> mat.name().endsWith("_SPAWN_EGG")).toList();
+    public static final Set<Material> SPAWN_EGGS = Arrays.stream(Material.values()).filter((mat) -> mat.name().endsWith("_SPAWN_EGG")).collect(Collectors.toSet());
-    public static final List<Material> BANNERS = Arrays.stream(Material.values()).filter((m) -> m.name().endsWith("_BANNER")).toList();
+    public static final Set<Material> BANNERS = Arrays.stream(Material.values()).filter((m) -> m.name().endsWith("_BANNER")).collect(Collectors.toSet());
-    public static final List<Biome> EXPLOSIVE_BED_BIOMES = Arrays.asList(
+    public static final Set<Biome> EXPLOSIVE_BED_BIOMES = new HashSet<>(Arrays.asList(
             Biome.NETHER_WASTES,
             Biome.CRIMSON_FOREST,
             Biome.SOUL_SAND_VALLEY,
@@ -23,5 +26,5 @@ public class Groups
             Biome.END_HIGHLANDS,
             Biome.END_MIDLANDS,
             Biome.THE_END,
-            Biome.SMALL_END_ISLANDS);
+            Biome.SMALL_END_ISLANDS));
 }

commons/src/main/java/me/totalfreedom/totalfreedommod/util/Interpolation.java

@@ -0,0 +1,58 @@
+package me.totalfreedom.totalfreedommod.util;
+
+import me.totalfreedom.totalfreedommod.api.Interpolator;
+import org.bukkit.Color;
+
+import java.util.LinkedHashSet;
+
+public class Interpolation
+{
+    public LinkedHashSet<Color> rainbow(int length)
+    {
+        LinkedHashSet<Color> base = new LinkedHashSet<>();
+        LinkedHashSet<Color> redToOrange = hsvGradient(length, Color.RED, Color.ORANGE, this::linear);
+        LinkedHashSet<Color> orangeToYellow = hsvGradient(length, Color.ORANGE, Color.YELLOW, this::linear);
+        LinkedHashSet<Color> yellowToGreen = hsvGradient(length, Color.YELLOW, Color.GREEN, this::linear);
+        LinkedHashSet<Color> greenToBlue = hsvGradient(length, Color.GREEN, Color.BLUE, this::linear);
+        LinkedHashSet<Color> blueToPurple = hsvGradient(length, Color.BLUE, Color.PURPLE, this::linear);
+        LinkedHashSet<Color> purpleToRed = hsvGradient(length, Color.PURPLE, Color.RED, this::linear);
+        base.addAll(redToOrange);
+        base.addAll(orangeToYellow);
+        base.addAll(yellowToGreen);
+        base.addAll(greenToBlue);
+        base.addAll(blueToPurple);
+        base.addAll(purpleToRed);
+        return base;
+    }
+
+    private double[] linear(double from, double to, int max)
+    {
+        final double[] res = new double[max];
+        for (int i = 0; i < max; i++)
+        {
+            res[i] = from + i * ((to - from) / (max - 1));
+        }
+        return res;
+    }
+
+    private LinkedHashSet<Color> hsvGradient(int length, Color from, Color to, Interpolator interpolator)
+    {
+        // returns a float-array where hsv[0] = hue, hsv[1] = saturation, hsv[2] = value/brightness
+        final float[] hsvFrom = java.awt.Color.RGBtoHSB(from.getRed(), from.getGreen(), from.getBlue(), null);
+        final float[] hsvTo = java.awt.Color.RGBtoHSB(to.getRed(), to.getGreen(), to.getBlue(), null);
+
+        final double[] h = interpolator.interpolate(hsvFrom[0], hsvTo[0], length);
+        final double[] s = interpolator.interpolate(hsvFrom[1], hsvTo[1], length);
+        final double[] v = interpolator.interpolate(hsvFrom[2], hsvTo[2], length);
+
+        final LinkedHashSet<Color> gradient = new LinkedHashSet<>();
+
+        for (int i = 0; i < length; i++)
+        {
+            final int rgb = java.awt.Color.HSBtoRGB((float) h[i], (float) s[i], (float) v[i]);
+            final Color color = Color.fromRGB(rgb);
+            gradient.add(color);
+        }
+        return gradient;
+    }
+}

commons/src/main/java/me/totalfreedom/totalfreedommod/util/ParticleDisplay.java

@@ -0,0 +1,57 @@
+package me.totalfreedom.totalfreedommod.util;
+
+import com.destroystokyo.paper.ParticleBuilder;
+import org.bukkit.Color;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.entity.Player;
+import org.bukkit.util.Vector;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Iterator;
+
+public class ParticleDisplay
+{
+    private final Interpolation interpolation;
+    private Iterator<Color> colorIterator;
+
+    public ParticleDisplay()
+    {
+        this.interpolation = new Interpolation();
+        this.colorIterator = interpolation.rainbow(43).iterator();
+    }
+
+    public void spawnNext(Player player)
+    {
+        Location location = getBehind(player);
+        Color color = getIterator().next();
+        Particle.DustOptions options = new Particle.DustOptions(color, 3);
+        ParticleBuilder builder = new ParticleBuilder(Particle.REDSTONE);
+        builder.data(options)
+                .receivers(30, 15, true)
+                .offset(0.5, 0.5, 0.5)
+                .location(location)
+                .spawn();
+    }
+
+    private Location getBehind(Player player)
+    {
+        @NotNull Vector inverse = player.getLocation()
+                .clone()
+                .getDirection()
+                .normalize()
+                .multiply(-1);
+
+        return player.getLocation().add(inverse);
+    }
+
+    private Iterator<Color> getIterator()
+    {
+        if (!this.colorIterator.hasNext())
+        {
+            this.colorIterator = interpolation.rainbow(43).iterator();
+        }
+
+        return this.colorIterator;
+    }
+}

commons/src/main/java/me/totalfreedom/totalfreedommod/world/WorldRestrictions.java

@@ -1,18 +1,8 @@
 package me.totalfreedom.totalfreedommod.world;
 
-import com.sk89q.worldguard.protection.flags.Flag;
-import com.sk89q.worldguard.protection.flags.Flags;
-import com.sk89q.worldguard.protection.flags.StateFlag;
-import com.sk89q.worldguard.protection.managers.RegionManager;
-import com.sk89q.worldguard.protection.regions.GlobalProtectedRegion;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
 import me.totalfreedom.totalfreedommod.FreedomService;
 import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
-import org.bukkit.World;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
@@ -23,8 +13,10 @@ import org.bukkit.event.player.PlayerArmorStandManipulateEvent;
 import org.bukkit.event.player.PlayerCommandPreprocessEvent;
 import org.bukkit.event.player.PlayerInteractEvent;
 
-public class WorldRestrictions extends FreedomService
+import java.util.Arrays;
-{
+import java.util.List;
+
+public class WorldRestrictions extends FreedomService {
 
     private final List<String> BLOCKED_WORLDEDIT_COMMANDS = Arrays.asList(
             "green", "fixlava", "fixwater", "br", "brush", "tool", "mat", "range", "cs", "up", "fill", "setblock", "tree", "replacenear", "bigtree");
@@ -33,118 +25,93 @@ public class WorldRestrictions extends FreedomService
             "bigtree", "ebigtree", "largetree", "elargetree");
 
     @Override
-    public void onStart()
+    public void onStart() {
-    {
     }
 
     @Override
-    public void onStop()
+    public void onStop() {
-    {
     }
 
-    public boolean doRestrict(Player player)
+    public boolean doRestrict(Player player) {
-    {
+        if (!plugin.pl.getData(player).isMasterBuilder()
-        if (!plugin.pl.getData(player).isMasterBuilder() && plugin.pl.canManageMasterBuilders(player.getName()))
+                && plugin.pl.canManageMasterBuilders(player.getName())
-        {
+                && (player.getWorld().equals(plugin.wm.masterBuilderWorld.getWorld()))) {
-            if (player.getWorld().equals(plugin.wm.masterBuilderWorld.getWorld()))
+            return true;
-            {
-                return true;
-            }
         }
 
-        return !plugin.al.isAdmin(player) && player.getWorld().equals(plugin.wm.adminworld.getWorld());
+        return !plugin.al.isAdmin(player)
+                && player.getWorld().equals(plugin.wm.adminworld.getWorld());
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void onBlockPlace(BlockPlaceEvent event)
+    public void onBlockPlace(BlockPlaceEvent event) {
-    {
         final Player player = event.getPlayer();
 
-        if (doRestrict(player))
+        if (doRestrict(player)) {
-        {
             event.setCancelled(true);
         }
     }
 
     @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
-    public void onBlockBreak(BlockBreakEvent event)
+    public void onBlockBreak(BlockBreakEvent event) {
-    {
         final Player player = event.getPlayer();
 
-        if (doRestrict(player))
+        if (doRestrict(player)) {
-        {
             event.setCancelled(true);
         }
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void onPlayerInteract(PlayerInteractEvent event)
+    public void onPlayerInteract(PlayerInteractEvent event) {
-    {
         final Player player = event.getPlayer();
 
-        if (doRestrict(player))
+        if (doRestrict(player)) {
-        {
             event.setCancelled(true);
         }
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void onArmorStandManipulate(PlayerArmorStandManipulateEvent event)
+    public void onArmorStandManipulate(PlayerArmorStandManipulateEvent event) {
-    {
         final Player player = event.getPlayer();
 
-        if (doRestrict(player))
+        if (doRestrict(player)) {
-        {
             event.setCancelled(true);
         }
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void onEntityDamageByEntity(EntityDamageByEntityEvent event)
+    public void onEntityDamageByEntity(EntityDamageByEntityEvent event) {
-    {
+        if (event.getDamager() instanceof Player player && (doRestrict(player))) {
-        if (event.getDamager() instanceof Player)
-        {
-            Player player = (Player)event.getDamager();
-
-            if (doRestrict(player))
-            {
                 event.setCancelled(true);
-            }
         }
     }
 
     @EventHandler(priority = EventPriority.NORMAL)
-    public void onCommandPreprocess(PlayerCommandPreprocessEvent event)
+    public void onCommandPreprocess(PlayerCommandPreprocessEvent event) {
-    {
         final Player player = event.getPlayer();
         String command = event.getMessage().split("\\s+")[0].substring(1).toLowerCase();
 
-        if (doRestrict(player))
+        if (doRestrict(player)) {
-        {
             /* This is a very poor way of blocking WorldEdit commands, all the methods I know of
                for obtaining a list of a plugin's commands are returning null for world edit. */
             String allowed = player.getWorld().equals(plugin.wm.adminworld.getWorld()) ? "Admins" : "Master Builders";
 
-            if (command.startsWith("/") || BLOCKED_WORLDEDIT_COMMANDS.contains(command))
+            if (command.startsWith("/") || BLOCKED_WORLDEDIT_COMMANDS.contains(command)) {
-            {
                 player.sendMessage(ChatColor.RED + "Only " + allowed + " are allowed to use WorldEdit here.");
                 event.setCancelled(true);
             }
 
-            if (command.equalsIgnoreCase("coreprotect") || command.equalsIgnoreCase("core") || command.equalsIgnoreCase("co"))
+            if (command.equalsIgnoreCase("coreprotect") || command.equalsIgnoreCase("core") || command.equalsIgnoreCase("co")) {
-            {
                 player.sendMessage(ChatColor.RED + "Only " + allowed + " are allowed to use CoreProtect here.");
                 event.setCancelled(true);
             }
         }
 
-        if (player.getWorld().equals(Bukkit.getWorld("plotworld")))
+        if (player.getWorld().equals(Bukkit.getWorld("plotworld"))
-        {
+                && (BLOCKED_ESSENTIALS_COMMANDS.contains(command))) {
-            if (BLOCKED_ESSENTIALS_COMMANDS.contains(command))
+            player.sendMessage(ChatColor.RED + "Sorry, this command is restricted in the plotworld");
-            {
+            event.setCancelled(true);
-                player.sendMessage(ChatColor.RED + "Sorry, this command is restricted in the plotworld");
+
-                event.setCancelled(true);
-            }
         }
     }
 }