Adding query player language (#824)

src/main/java/carpet/fakes/ClientSettingsC2SPacketInterface.java

@@ -0,0 +1,5 @@
+package carpet.fakes;
+
+public interface ClientSettingsC2SPacketInterface {
+    public String getLanguage();
+}

src/main/java/carpet/fakes/ServerPlayerEntityInterface.java

@@ -7,5 +7,5 @@ public interface ServerPlayerEntityInterface
     EntityPlayerActionPack getActionPack();
     void invalidateEntityObjectReference();
     boolean isInvalidEntityObject();
-
+    String getLanguage();
 }

src/main/java/carpet/mixins/ClientSettingsC2SPacket_scarpetMixin.java

@@ -0,0 +1,18 @@
+package carpet.mixins;
+
+import carpet.fakes.ClientSettingsC2SPacketInterface;
+import net.minecraft.network.packet.c2s.play.ClientSettingsC2SPacket;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+
+@Mixin(ClientSettingsC2SPacket.class)
+public class ClientSettingsC2SPacket_scarpetMixin implements ClientSettingsC2SPacketInterface {
+    @Shadow
+    private String language;
+
+    @Override
+    public String getLanguage(){
+        return this.language;
+    }
+}
+

src/main/java/carpet/mixins/ServerPlayerEntity_scarpetEventMixin.java

@@ -1,5 +1,6 @@
 package carpet.mixins;
 
+import carpet.fakes.ClientSettingsC2SPacketInterface;
 import carpet.fakes.EntityInterface;
 import carpet.fakes.ServerPlayerEntityInterface;
 import carpet.script.EntityEventsGroup;
@@ -7,6 +8,7 @@ import com.mojang.authlib.GameProfile;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.damage.DamageSource;
 import net.minecraft.entity.player.PlayerEntity;
+import net.minecraft.network.packet.c2s.play.ClientSettingsC2SPacket;
 import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.server.world.ServerWorld;
 import net.minecraft.stat.Stat;
@@ -126,4 +128,16 @@ public abstract class ServerPlayerEntity_scarpetEventMixin extends PlayerEntity
     {
         return isInvalidReference;
     }
+
+    //getting player language
+    private String language;
+
+    public String getLanguage(){
+        return this.language;
+    }
+
+    @Inject(method = "setClientSettings", at = @At("HEAD"))
+    public void setClientSettings(ClientSettingsC2SPacket packet, CallbackInfo ci){
+        this.language = ((ClientSettingsC2SPacketInterface) packet).getLanguage();
+    }
 }

src/main/java/carpet/script/value/EntityValue.java

@@ -535,6 +535,12 @@ public class EntityValue extends Value
         });
 
         put("air", (e, a) -> new NumericValue(e.getAir()));
+        put("language", (e, a)->{
+            if(!(e instanceof ServerPlayerEntity))
+                return NULL;
+            String lang = ((ServerPlayerEntityInterface) e).getLanguage();
+            return StringValue.of(lang);
+        });
         put("persistence", (e, a) -> {
             if (e instanceof MobEntity) return new NumericValue(((MobEntity) e).isPersistent());
             return Value.NULL;

src/main/resources/carpet.mixins.json

@@ -74,6 +74,7 @@
     "ExperienceOrbEntityMixin",
     "PlayerActionC2SPacketMixin",
     "ServerPlayerEntityMixin",
+    "ClientSettingsC2SPacket_scarpetMixin",
     "PlayerManager_coreMixin",
     "PlayerManager_fakePlayersMixin",
     "RedstoneWireBlockMixin",