first commit

source/decompiled/de/maxhenkel/voicechat/integration/viaversion/ViaVersionCompatibility.java

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+/*
+ * Decompiled with CFR 0.152.
+ * 
+ * Could not load the following classes:
+ *  javax.annotation.Nullable
+ */
+package de.maxhenkel.voicechat.integration.viaversion;
+
+import de.maxhenkel.voicechat.Voicechat;
+import de.maxhenkel.voicechat.util.Key;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import javax.annotation.Nullable;
+
+public class ViaVersionCompatibility {
+    public static void register() throws Exception {
+        Class<?> protocol113to1122 = ViaVersionCompatibility.getClass("com.viaversion.viaversion.protocols.protocol1_13to1_12_2.Protocol1_13To1_12_2");
+        if (protocol113to1122 != null) {
+            ViaVersionCompatibility.registerPackets(protocol113to1122);
+            return;
+        }
+        Class<?> protocol1122to113 = ViaVersionCompatibility.getClass("com.viaversion.viaversion.protocols.v1_12_2to1_13.Protocol1_12_2To1_13");
+        if (protocol1122to113 != null) {
+            ViaVersionCompatibility.registerPackets(protocol1122to113);
+            return;
+        }
+    }
+
+    private static void registerPackets(Class<?> protocolClass) throws Exception {
+        Field mappingsField = protocolClass.getDeclaredField("MAPPINGS");
+        Object mappings = mappingsField.get(null);
+        Method getChannelMappings = mappings.getClass().getDeclaredMethod("getChannelMappings", new Class[0]);
+        Object mappingMap = getChannelMappings.invoke(mappings, new Object[0]);
+        Method put = mappingMap.getClass().getDeclaredMethod("put", Object.class, Object.class);
+        for (String id : Voicechat.netManager.getPackets()) {
+            Key key = Key.parse(id);
+            put.invoke(mappingMap, String.format("%s:%s", "vc", key.getValue()), String.format("%s:%s", "voicechat", key.getValue()));
+        }
+    }
+
+    @Nullable
+    private static Class<?> getClass(String name) {
+        try {
+            return Class.forName(name);
+        }
+        catch (ClassNotFoundException e) {
+            return null;
+        }
+    }
+}
+