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Fix ancient client error caused by empty meta for < 1.11

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Since modern versions don't immediately send metadata in spawn packets and 1.10 clients and lower have a slight oversight in the meta getting, every mob/player spawn spammed the client console with an error. Even though it is a harmless error, I figured people would like their client console not to get spammed anymore.
This commit is contained in:
KennyTV 2021-05-29 14:56:22 +02:00
parent 27b4933262
commit f341fc132c
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GPG Key ID: 6BE3B555EBC5982B
1 changed files with 22 additions and 13 deletions
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35
common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_10to1_11/packets/EntityPackets1_11.java
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@ -134,23 +134,25 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<Protocol1_10To1_11>
handler(getTrackerHandler(Type.UNSIGNED_BYTE, 0));
// Rewrite entity type / metadata
handler(new PacketHandler() {
@Override
public void handle(PacketWrapper wrapper) throws Exception {
int entityId = wrapper.get(Type.VAR_INT, 0);
EntityType type = tracker(wrapper.user()).entityType(entityId);
handler(wrapper -> {
int entityId = wrapper.get(Type.VAR_INT, 0);
EntityType type = tracker(wrapper.user()).entityType(entityId);
List<Metadata> list = wrapper.get(Types1_9.METADATA_LIST, 0);
handleMetadata(wrapper.get(Type.VAR_INT, 0), list, wrapper.user());
List<Metadata> list = wrapper.get(Types1_9.METADATA_LIST, 0);
handleMetadata(wrapper.get(Type.VAR_INT, 0), list, wrapper.user());
EntityData entityData = entityDataForType(type);
if (entityData != null) {
wrapper.set(Type.UNSIGNED_BYTE, 0, (short) entityData.replacementId());
if (entityData.hasBaseMeta()) {
entityData.defaultMeta().createMeta(new WrappedMetadata(list));
}
EntityData entityData = entityDataForType(type);
if (entityData != null) {
wrapper.set(Type.UNSIGNED_BYTE, 0, (short) entityData.replacementId());
if (entityData.hasBaseMeta()) {
entityData.defaultMeta().createMeta(new WrappedMetadata(list));
}
}
// Sub 1.11 clients will error if the list is empty
if (list.isEmpty()) {
list.add(new Metadata(0, MetaType1_9.Byte, (byte) 0));
}
});
}
});
@ -172,6 +174,13 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<Protocol1_10To1_11>
map(Types1_9.METADATA_LIST); // 7 - Metadata list
handler(getTrackerAndMetaHandler(Types1_9.METADATA_LIST, Entity1_11Types.EntityType.PLAYER));
handler(wrapper -> {
// Sub 1.11 clients will cry if the list is empty
List<Metadata> metadata = wrapper.get(Types1_9.METADATA_LIST, 0);
if (metadata.isEmpty()) {
metadata.add(new Metadata(0, MetaType1_9.Byte, (byte) 0));
}
});
}
});