Feat & Rebuild: Add @PlayerName Reminder in chat.

src/main/java/cn/revaria/chatplus/ChatPlus.java

@@ -1,6 +1,8 @@
 package cn.revaria.chatplus;
 
 import net.fabricmc.api.ModInitializer;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents;
+import net.minecraft.server.MinecraftServer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -12,12 +14,20 @@ public class ChatPlus implements ModInitializer {
 	// That way, it's clear which mod wrote info, warnings, and errors.
 	public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
 
+	private static MinecraftServer server;
+
+	public static MinecraftServer getServer() {
+		return server;
+	}
+
 	@Override
 	public void onInitialize() {
 		// This code runs as soon as Minecraft is in a mod-load-ready state.
 		// However, some things (like resources) may still be uninitialized.
 		// Proceed with mild caution.
 
+		ServerLifecycleEvents.SERVER_STARTING.register(server -> ChatPlus.server = server);
+
 		LOGGER.info("Chat Plus loaded");
 	}
 }

src/main/java/cn/revaria/chatplus/format/formats/ChatInsertFormat.java

@@ -0,0 +1,9 @@
+package cn.revaria.chatplus.format.formats;
+
+import cn.revaria.chatplus.format.ChatFormat;
+import net.minecraft.network.chat.MutableComponent;
+
+public interface ChatInsertFormat extends ChatFormat {
+	MutableComponent getInsertComponent();
+	ChatInsertFormat copy();
+}

src/main/java/cn/revaria/chatplus/format/formats/insertformats/ChatInsertItemFormat.java

@@ -1,10 +1,11 @@
-package cn.revaria.chatplus.format.formats;
+package cn.revaria.chatplus.format.formats.insertformats;
 
-import cn.revaria.chatplus.format.ChatFormat;
 import cn.revaria.chatplus.format.ChatFormatType;
+import cn.revaria.chatplus.format.formats.ChatInsertFormat;
+import net.minecraft.network.chat.MutableComponent;
 import net.minecraft.world.item.ItemStack;
 
-public class ChatInsertItemFormat implements ChatFormat {
+public class ChatInsertItemFormat implements ChatInsertFormat {
 
 	private final ItemStack item;
 
@@ -21,6 +22,10 @@ public class ChatInsertItemFormat implements ChatFormat {
 		return item;
 	}
 
+	@Override
+	public MutableComponent getInsertComponent() {
+		return item.getDisplayName().copy();
+	}
 	@Override
 	public int startingIndex() {
 		return startingIndex;

src/main/java/cn/revaria/chatplus/format/formats/insertformats/ChatInsertReminderFormat.java

@@ -0,0 +1,53 @@
+package cn.revaria.chatplus.format.formats.insertformats;
+
+import cn.revaria.chatplus.format.ChatFormatType;
+import cn.revaria.chatplus.format.formats.ChatInsertFormat;
+import net.minecraft.ChatFormatting;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.chat.MutableComponent;
+import net.minecraft.network.chat.TextColor;
+import net.minecraft.server.level.ServerPlayer;
+import net.minecraft.sounds.SoundEvents;
+import net.minecraft.sounds.SoundSource;
+
+public class ChatInsertReminderFormat implements ChatInsertFormat {
+
+	private final ServerPlayer aimPlayer;
+	private boolean soundPlayed = false;
+
+	private final int startingIndex;
+	private final ChatFormatType formatType = ChatFormatType.INSERT;
+
+	public ChatInsertReminderFormat(int startingIndex, ServerPlayer aim) {
+		this.startingIndex = startingIndex;
+
+		this.aimPlayer = aim;
+	}
+
+	public ServerPlayer getAimPlayer() {
+		return aimPlayer;
+	}
+
+	@Override
+	public MutableComponent getInsertComponent() {
+		if (!soundPlayed) {
+			soundPlayed = true;
+			aimPlayer.playSound(SoundEvents.EXPERIENCE_ORB_PICKUP, 3, 1);
+		}
+		return Component.literal("@").append(aimPlayer.getDisplayName())
+			.withColor(TextColor.GREEN)
+			.withStyle(ChatFormatting.BOLD);
+	}
+	@Override
+	public int startingIndex() {
+		return startingIndex;
+	}
+	@Override
+	public ChatFormatType formatType() {
+		return formatType;
+	}
+	@Override
+	public ChatInsertFormat copy() {
+		return new ChatInsertReminderFormat(startingIndex, aimPlayer);
+	}
+}

src/main/java/cn/revaria/chatplus/util/TextStyleFormatter.java

@@ -2,17 +2,20 @@ package cn.revaria.chatplus.util;
 
 #if MC_VER <= MC_1_20
 import net.minecraft.network.chat.contents.LiteralContents;
-#else
+#endif
+
+import cn.revaria.chatplus.ChatPlus;
+import cn.revaria.chatplus.format.formats.ChatInsertFormat;
+import cn.revaria.chatplus.format.formats.insertformats.ChatInsertReminderFormat;
 import cn.revaria.chatplus.format.ChatFormat;
 import cn.revaria.chatplus.format.ChatFormatType;
 import cn.revaria.chatplus.format.formats.ChatColorFormat;
 import cn.revaria.chatplus.format.formats.ChatFontFormat;
-import cn.revaria.chatplus.format.formats.ChatInsertItemFormat;
+import cn.revaria.chatplus.format.formats.insertformats.ChatInsertItemFormat;
 import cn.revaria.chatplus.format.formats.ChatResetFormat;
-#endif
-
 import net.minecraft.network.chat.Component;
 import net.minecraft.network.chat.MutableComponent;
+import net.minecraft.server.MinecraftServer;
 import net.minecraft.server.level.ServerPlayer;
 
 import java.util.*;
@@ -69,7 +72,7 @@ public class TextStyleFormatter {
 
 			ArrayList<ChatFormat> formatsList = formatsTable.get(i);
 
-			if (formatsList.getFirst() instanceof ChatInsertItemFormat insertItem) {
+			if (formatsList.getFirst() instanceof ChatInsertFormat insertFormat) {
 
 				if (i > 0) {
 					finalText.append(composeChatComponent(
@@ -79,7 +82,7 @@ public class TextStyleFormatter {
 						));
 				}
 
-				finalText.append(insertItem.getItem().getDisplayName());
+				finalText.append(insertFormat.getInsertComponent());
 
 				startIndex = i;
 				continue;
@@ -152,6 +155,9 @@ public class TextStyleFormatter {
 
 		StringBuilder textBuilder = new StringBuilder();
 
+		MinecraftServer server = ChatPlus.getServer();
+		String[] playerNames = server.getPlayerList().getPlayerNamesArray();
+
 		String itemRegex = "\\[item(?:=([1-9]))?\\]";
 		Pattern itemPattern = Pattern.compile(itemRegex);
 		Matcher matcher = itemPattern.matcher(sourceRawText);
@@ -268,21 +274,42 @@ public class TextStyleFormatter {
 				}
 			}
 
+			if ((character >= '0' && character <= '9')
+				|| (character >= 'a' && character <= 'z')
+				|| (character >= 'A' && character <= 'Z')
+				|| character == '_') {
+
+				String insertName = matchPlayerName(sourceRawText, playerNames, i);
+				if (insertName != null) {
+
+					if (!formatsTableOutput.containsKey(currentIndex)) {
+						formatsTableOutput.put(currentIndex, new ArrayList<>());
+					}
+					formatsTableOutput.get(currentIndex).add(new ChatInsertReminderFormat(
+						currentIndex,
+						server.getPlayerList().getPlayer(insertName)
+					));
+
+					i += insertName.length() - 1;
+					continue;
+				}
+			}
+
 			textBuilder.append(character);
 		}
 
 		formatsTableOutput.forEach((i, formatsList) -> {
 
 			boolean containsResetFormat = false;
-			ChatInsertItemFormat containedInsertItemFormat = null;
+			ChatInsertFormat containedInsertFormat = null;
 			for (ChatFormat format : formatsList) {
 
 				if (format.formatType() == ChatFormatType.RESET) {
 					containsResetFormat = true;
 					break;
 				}
-				if (format instanceof ChatInsertItemFormat insertItemFormat && format.formatType() == ChatFormatType.INSERT) {
-					containedInsertItemFormat = insertItemFormat.copy();
+				if (format instanceof ChatInsertFormat insertFormat && format.formatType() == ChatFormatType.INSERT) {
+					containedInsertFormat = insertFormat.copy();
 					break;
 				}
 			}
@@ -291,12 +318,29 @@ public class TextStyleFormatter {
 				formatsList.clear();
 				formatsList.add(new ChatResetFormat(i));
 			}
-			if (containedInsertItemFormat != null) {
+			if (containedInsertFormat != null) {
 				formatsList.clear();
-				formatsList.add(containedInsertItemFormat);
+				formatsList.add(containedInsertFormat);
 			}
 		});
 
 		return textBuilder.toString();
 	}
+
+	private static String matchPlayerName(String chatText, String[] playerNames, int startingIndex) {
+
+		String aimName = null;
+
+		for (String name : playerNames) {
+
+			if (chatText.startsWith(name, startingIndex)) {
+
+				if (aimName == null || aimName.length() < name.length()) {
+					aimName = name;
+				}
+			}
+		}
+
+		return aimName;
+	}
 }