add rule: unescapeChatMessage

Author: OptiJava

src/main/java/io/github/optijava/opt_carpet_addition/OptCarpetSettings.java

@@ -115,8 +115,8 @@ public class OptCarpetSettings {
     public static boolean disabledEntityTick = false;
 
     @Rule(
-            desc = "Disable error stack trace when update suppression(It makes server managers more comfortable)",
-            category = {RuleCategory.EXPERIMENTAL, RuleCategory.BUGFIX}
+            desc = "Unescape chat message. \\u4e2d -> 中",
+            category = {RuleCategory.FEATURE, RuleCategory.CLIENT}
     )
-    public static boolean disabledUpdateSuppressionErrorStackTrace = false;
+    public static boolean unescapeChatMessage = false;
 }

src/main/java/io/github/optijava/opt_carpet_addition/mixins/unescapeChatMessage/ChatMessageC2SPacket_Mixin.java

@@ -0,0 +1,29 @@
+package io.github.optijava.opt_carpet_addition.mixins.unescapeChatMessage;
+
+import io.github.optijava.opt_carpet_addition.OptCarpetSettings;
+import net.minecraft.network.packet.c2s.play.ChatMessageC2SPacket;
+import org.apache.commons.lang3.StringEscapeUtils;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(ChatMessageC2SPacket.class)
+public class ChatMessageC2SPacket_Mixin {
+
+    /**
+     * Mixin ChatMessageC2SPacket.<init>
+     *
+     * @author OptiJava
+     * @reason rule: unescapeChatMessage
+     */
+    @Inject(method = "<init>", at = @At("TAIL"))
+    public void injectInit(CallbackInfo ci) {
+        if (OptCarpetSettings.unescapeChatMessage) {
+            try {
+                ((ChatMessageC2SPacket) (Object) this).chatMessage = StringEscapeUtils.unescapeJava(((ChatMessageC2SPacket) (Object) this).chatMessage);
+            } catch (Exception ignore) {
+            }
+        }
+    }
+}

src/main/java/io/github/optijava/opt_carpet_addition/mixins/unescapeChatMessage/Screen_Mixin.java

@@ -0,0 +1,31 @@
+package io.github.optijava.opt_carpet_addition.mixins.unescapeChatMessage;
+
+import io.github.optijava.opt_carpet_addition.OptCarpetSettings;
+import net.minecraft.client.gui.screen.Screen;
+import org.apache.commons.lang3.StringEscapeUtils;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyArg;
+
+@Mixin(Screen.class)
+public class Screen_Mixin {
+
+    /**
+     * Mixin Screen.sendMessage(Ljava/lang/String;)V
+     *
+     * @author OptiJava
+     * @reason rule: unescapeChatMessage
+     */
+    @ModifyArg(method = "sendMessage(Ljava/lang/String;)V", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/gui/screen/Screen;sendMessage(Ljava/lang/String;Z)V"), index = 0)
+    public String injectSendMessage(String message) {
+        if (OptCarpetSettings.unescapeChatMessage) {
+            try {
+                return StringEscapeUtils.unescapeJava(message);
+            } catch (Exception e) {
+                return message;
+            }
+        } else {
+            return message;
+        }
+    }
+}

src/main/resources/opt-carpet-addition.accesswidener

@@ -1,3 +1,4 @@
 accessWidener v1 named
 accessible class net/minecraft/entity/mob/EndermanEntity$PickUpBlockGoal
-accessible class net/minecraft/entity/mob/EndermanEntity$PlaceBlockGoal
+accessible class net/minecraft/entity/mob/EndermanEntity$PlaceBlockGoal
+accessible field net/minecraft/network/packet/c2s/play/ChatMessageC2SPacket chatMessage Ljava/lang/String;

src/main/resources/opt-carpet-addition.mixins.json

@@ -12,6 +12,8 @@
     "disabledUpdateSuppressionErrorStackTrace.ThreadExecutor_Mixin"
   ],
   "client": [
+    "unescapeChatMessage.ChatMessageC2SPacket_Mixin",
+    "unescapeChatMessage.Screen_Mixin"
   ],
   "injectors": {
     "defaultRequire": 1

src/test/java/io/github/optijava/opt_carpet_addition/Main.java

@@ -0,0 +1,7 @@
+package io.github.optijava.opt_carpet_addition;
+
+public class Main {
+    public static void main(String[] args) {
+        
+    }
+}