Fix Optifine language data missing when localization extra is enabled (fixes #109)

src/main/java/com/replaymod/compat/optifine/OptifineReflection.java

@@ -3,6 +3,7 @@ package com.replaymod.compat.optifine;
 import net.minecraft.client.settings.GameSettings;
 
 import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
 
 public class OptifineReflection {
 
@@ -24,4 +25,14 @@ public class OptifineReflection {
         }
     }
 
+    public static void reloadLang() {
+        try {
+            Class.forName("Lang").getDeclaredMethod("resourcesReloaded").invoke(null);
+        } catch (ClassNotFoundException ignore) {
+            // no optifine installed
+        } catch (NoSuchMethodException | InvocationTargetException | IllegalAccessException e) {
+            e.printStackTrace();
+        }
+    }
+
 }

src/main/java/com/replaymod/extras/LocalizationExtra.java

@@ -1,6 +1,7 @@
 package com.replaymod.extras;
 
 import com.google.common.collect.ImmutableSet;
+import com.replaymod.compat.optifine.OptifineReflection;
 import com.replaymod.core.ReplayMod;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.resources.IResourcePack;
@@ -66,6 +67,8 @@ public class LocalizationExtra implements Extra {
                     List<IResourcePack> defaultResourcePacks = mc.defaultResourcePacks;
                     defaultResourcePacks.add(new LocalizedResourcePack(languages));
                     mc.getLanguageManager().onResourceManagerReload(mc.getResourceManager());
+                    // Optifine does its own, additional language data loading
+                    OptifineReflection.reloadLang();
                     LOGGER.debug("Added language files to resource packs and reloaded LanguageManager");
                 });
             } catch (Throwable t) {