add: PingPlayerFeature (#1)

fix many bugs, rewrote some message decorators
to be refactored

src/main/java/io/ib67/sfcraft/SFConsts.java

@@ -7,8 +7,10 @@ import net.minecraft.server.network.ServerPlayerEntity;
 @UtilityClass
 public class SFConsts {
     public static final String SPECIAL_SUDO = "sfcraft.special.state.sudo";
+    public static final Permission<PlayerEntity> USE_AT = ofSFCPermission("chat.at",true);
+    public static final Permission<PlayerEntity> USE_BROADCAST_LOCATION = ofSFCPermission("chat.xyz",true);
     public static final Permission<PlayerEntity> COMMAND_BACK = ofSFCPermission("command.home", true);
-    public static final Permission<PlayerEntity> UNLIMITED_COMMAND_BACK = ofSFCPermission("command.home.unlimited", true);
+    public static final Permission<PlayerEntity> UNLIMITED_COMMAND_BACK = ofSFCPermission("command.home.unlimited", false);
 
     public static final Permission<PlayerEntity> COMMAND_ADDWL = ofSFCPermission("command.addwl", false);
     public static final Permission<PlayerEntity> COMMAND_UNBLOCKSERVER = ofSFCPermission("command.unblockserver", false);

src/main/java/io/ib67/sfcraft/message/SFMessageDecorator.java

@@ -1,9 +1,14 @@
 package io.ib67.sfcraft.message;
 
+import io.ib67.sfcraft.message.feature.PingPlayerFeature;
 import io.ib67.sfcraft.message.feature.SendLocationFeature;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.text.Text;
 
 public class SFMessageDecorator extends SimpleMessageDecorator {
     public SFMessageDecorator() {
         registerDecorator(new SendLocationFeature());
+        registerDecorator(new PingPlayerFeature());
     }
+
 }

src/main/java/io/ib67/sfcraft/message/SimpleMessageDecorator.java

@@ -21,9 +21,21 @@ public class SimpleMessageDecorator implements MessageDecorator {
 
     @Override
     public Text decorate(@Nullable ServerPlayerEntity sender, Text message) {
+        var targets = new ArrayList<Text>();
+        targets.add(message);
         for (MessageDecorator decorator : decorators) {
-            message = decorator.decorate(sender, message);
+            var newRd = new ArrayList<Text>();
+            for (Text target : targets) {
+                var r = decorator.decorate(sender, target);
+                var copy = r.copy();
+                copy.getSiblings().clear();
+                newRd.add(copy);
+                newRd.addAll(r.getSiblings());
             }
-        return message;
+            targets = newRd;
+        }
+        var result = Text.empty();
+        targets.forEach(result::append);
+        return result;
     }
 }

src/main/java/io/ib67/sfcraft/message/feature/PingPlayerFeature.java

@@ -0,0 +1,67 @@
+package io.ib67.sfcraft.message.feature;
+
+import io.ib67.sfcraft.SFConsts;
+import io.ib67.sfcraft.SFCraft;
+import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.message.MessageDecorator;
+import net.minecraft.registry.RegistryKeys;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.sound.SoundCategory;
+import net.minecraft.sound.SoundEvent;
+import net.minecraft.sound.SoundEvents;
+import net.minecraft.text.Text;
+import net.minecraft.util.Colors;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.regex.MatchResult;
+import java.util.regex.Pattern;
+
+public class PingPlayerFeature implements MessageDecorator {
+    private static final Pattern PING = Pattern.compile("(@[\\w]+)?");
+
+    @Override
+    public Text decorate(@Nullable ServerPlayerEntity sender, Text message) {
+        if (sender != null) {
+            if (!SFConsts.USE_AT.hasPermission(sender)) {
+                return message;
+            }
+        }
+        var text = message.getLiteralString();
+        if (text == null) return message;
+        var match = PING.matcher(text);
+        if (!match.find()) return message;
+        var foundPlayers = new HashSet<PlayerEntity>();
+        var names = List.of(SFCraft.getInstance().getServer().getPlayerNames());
+        var r = Text.literal(match.replaceAll(it -> this.matchPlayer(it, names, foundPlayers)));
+        for (PlayerEntity foundPlayer : foundPlayers) {
+            if (sender != null) {
+                foundPlayer.sendMessage(Text.literal(sender.getName().getLiteralString() + " 正在叫你。").withColor(Colors.LIGHT_GRAY));
+            }
+            foundPlayer.playSoundToPlayer(
+                    SoundEvent.of(SoundEvents.ENTITY_ITEM_PICKUP.getId()),
+                    SoundCategory.PLAYERS,
+                    0.8f,
+                    0.5f
+            );
+        }
+        return r;
+    }
+
+    private String matchPlayer(MatchResult match, List<String> playerNames, Set<PlayerEntity> foundPlayers) {
+        for (int i = 0; i < match.groupCount(); i++) {
+            var r = match.group();
+            if (r.isEmpty()) continue;
+            final var d = r.substring(1);
+            return playerNames.stream()
+                    .filter(it -> it.toLowerCase().startsWith(d))
+                    .peek(it -> foundPlayers.add(SFCraft.getInstance().getServer().getPlayerManager().getPlayer(it)))
+                    .findFirst()
+                    .orElse(r);
+        }
+        return "";
+    }
+}

src/main/java/io/ib67/sfcraft/message/feature/ReplaceHelper.java

@@ -0,0 +1,28 @@
+package io.ib67.sfcraft.message.feature;
+
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.text.Text;
+
+import java.util.Locale;
+import java.util.function.Function;
+
+class ReplaceHelper {
+
+    public static Text replace(ServerPlayerEntity sender, Text message, String s, Function<ServerPlayerEntity, Text> generator) {
+        var text = message.getLiteralString();
+        if (text == null || text.isEmpty()) return message;
+        text = text.trim();
+        var result = Text.literal("");
+        var head = 0;
+        var lowercase = text.toLowerCase(Locale.ROOT);
+        var i = lowercase.indexOf(s);
+        while (i != -1) {
+            result.append(text.substring(0, i).trim());
+            result.append(generator.apply(sender));
+            head = i + s.length();
+            i = lowercase.indexOf(s, head + 1);
+        }
+        result.append(text.substring(head).trim());
+        return result;
+    }
+}

src/main/java/io/ib67/sfcraft/message/feature/SendLocationFeature.java

@@ -1,6 +1,7 @@
 package io.ib67.sfcraft.message.feature;
 
 import io.ib67.sfcraft.Helper;
+import io.ib67.sfcraft.SFConsts;
 import net.minecraft.network.message.MessageDecorator;
 import net.minecraft.registry.RegistryKey;
 import net.minecraft.server.network.ServerPlayerEntity;
@@ -12,24 +13,12 @@ import org.jetbrains.annotations.Nullable;
 public class SendLocationFeature implements MessageDecorator {
     @Override
     public Text decorate(@Nullable ServerPlayerEntity sender, Text message) {
-        var text = message.getLiteralString().trim();
+        if (sender != null) {
-        if (text == null) {
+            if (!SFConsts.USE_BROADCAST_LOCATION.hasPermission(sender)) {
                 return message;
             }
-        if (text.trim().equals(".xyz")) {
-            return generateLocText(sender);
         }
-        var result = Text.literal("");
+        return ReplaceHelper.replace(sender, message, ".xyz", SendLocationFeature::generateLocText);
-        var head = 0;
-        var i = text.indexOf(".xyz");
-        while (i != -1) {
-            result.append(text.substring(0, i).trim());
-            result.append(generateLocText(sender));
-            head = i + 4;
-            i = text.indexOf(".xyz", head + 1);
-        }
-        result.append(text.substring(head).trim());
-        return result;
     }
 
     private static Text generateLocText(ServerPlayerEntity sender) {