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Eliminate full copying/saving of item tags

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This unnecessarily stores a hell of a lot of unneeded data and heavily accumulates the more versions the pipeline goes down to.
This commit is contained in:
KennyTV 2020-08-07 10:07:39 +02:00
parent 9f9d05d3c6
commit b2b8c48fd0
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GPG Key ID: 6BE3B555EBC5982B
4 changed files with 76 additions and 88 deletions
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52
core/src/main/java/nl/matsv/viabackwards/api/rewriters/ItemRewriter.java
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@ -5,6 +5,7 @@ import nl.matsv.viabackwards.api.data.MappedItem;
import org.jetbrains.annotations.Nullable;
import us.myles.ViaVersion.api.minecraft.item.Item;
import us.myles.ViaVersion.api.rewriters.IdRewriteFunction;
import us.myles.viaversion.libs.opennbt.tag.builtin.ByteTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.CompoundTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.ListTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.StringTag;
@ -33,38 +34,41 @@ public abstract class ItemRewriter<T extends BackwardsProtocol> extends ItemRewr
public Item handleItemToClient(Item item) {
if (item == null) return null;
CompoundTag tag = null;
boolean textChanged = false;
CompoundTag display = null;
if (translatableRewriter != null
&& item.getTag() != null && (tag = item.getTag().get("display")) != null) {
&& item.getTag() != null && (display = item.getTag().get("display")) != null) {
// Handle name and lore components
StringTag name = tag.get("Name");
StringTag name = display.get("Name");
if (name != null) {
String newValue = translatableRewriter.processText(name.getValue()).toString();
if (name.getValue().equals(newValue)) {
textChanged = true;
if (!newValue.equals(name.getValue())) {
saveNameTag(display, name);
}
name.setValue(newValue);
}
ListTag lore = tag.get("Lore");
ListTag lore = display.get("Lore");
if (lore != null) {
ListTag original = null;
boolean changed = false;
for (Tag loreEntry : lore) {
if (!(loreEntry instanceof StringTag)) continue;
StringTag stringTag = (StringTag) loreEntry;
String newValue = translatableRewriter.processText(stringTag.getValue()).toString();
if (stringTag.getValue().equals(newValue)) {
textChanged = true;
if (!changed && !newValue.equals(name.getValue())) {
changed = true;
original = lore.clone();
}
stringTag.setValue(newValue);
}
}
}
if (textChanged) {
// Backup data for toServer
item.getTag().put(createViaNBT(item));
if (changed) {
saveLoreTag(display, original);
}
}
}
MappedItem data = mappedItemFunction.get(item.getIdentifier());
@ -73,23 +77,19 @@ public abstract class ItemRewriter<T extends BackwardsProtocol> extends ItemRewr
return super.handleItemToClient(item);
}
// Backup data for toServer if not already done above
if (!textChanged) {
if (item.getTag() == null) {
item.setTag(new CompoundTag(""));
}
item.getTag().put(createViaNBT(item));
}
// Set remapped id
item.setIdentifier(data.getId());
// Set custom name - only done if there is no original one
if (tag == null) {
item.getTag().put(tag = new CompoundTag("display"));
if (item.getTag() == null) {
item.setTag(new CompoundTag(""));
}
if (!tag.contains("Name")) {
tag.put(new StringTag("Name", data.getJsonName()));
if (display == null) {
item.getTag().put(display = new CompoundTag("display"));
}
if (!display.contains("Name")) {
display.put(new StringTag("Name", data.getJsonName()));
display.put(new ByteTag(nbtTagName + "|customName"));
}
return item;
}

78
core/src/main/java/nl/matsv/viabackwards/api/rewriters/ItemRewriterBase.java
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@ -5,10 +5,9 @@ import org.jetbrains.annotations.Nullable;
import us.myles.ViaVersion.api.minecraft.item.Item;
import us.myles.ViaVersion.api.rewriters.IdRewriteFunction;
import us.myles.viaversion.libs.opennbt.conversion.builtin.CompoundTagConverter;
import us.myles.viaversion.libs.opennbt.tag.builtin.ByteTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.CompoundTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.ShortTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.Tag;
import us.myles.viaversion.libs.opennbt.tag.builtin.ListTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.StringTag;
public abstract class ItemRewriterBase<T extends BackwardsProtocol> extends Rewriter<T> {
@ -42,53 +41,42 @@ public abstract class ItemRewriterBase<T extends BackwardsProtocol> extends Rewr
@Nullable
public Item handleItemToServer(Item item) {
if (item == null) return null;
CompoundTag tag = item.getTag();
if (tag == null) {
if (toServerRewriter != null) {
item.setIdentifier(toServerRewriter.rewrite(item.getIdentifier()));
}
return item;
}
CompoundTag viaTag = tag.remove(nbtTagName);
if (viaTag != null) {
short id = (short) viaTag.get("id").getValue();
item.setIdentifier(id);
Tag dataTag = viaTag.get("data");
short data = dataTag != null ? (short) dataTag.getValue() : 0;
item.setData(data);
Tag amountTag = viaTag.get("amount");
byte amount = amountTag != null ? (byte) amountTag.getValue() : 1;
item.setAmount(amount);
CompoundTag extras = viaTag.get("extras");
if (extras != null) {
item.setTag(CONVERTER.convert("", CONVERTER.convert(extras)));
}
} else {
// Rewrite id normally
if (toServerRewriter != null) {
item.setIdentifier(toServerRewriter.rewrite(item.getIdentifier()));
}
if (toServerRewriter != null) {
item.setIdentifier(toServerRewriter.rewrite(item.getIdentifier()));
}
restoreDisplayTag(item);
return item;
}
protected CompoundTag createViaNBT(Item item) {
CompoundTag tag = new CompoundTag(nbtTagName);
tag.put(new ShortTag("id", (short) item.getIdentifier()));
if (item.getAmount() != 1) {
tag.put(new ByteTag("amount", item.getAmount()));
protected void saveNameTag(CompoundTag displayTag, StringTag original) {
displayTag.put(new StringTag(nbtTagName + "|o" + original.getName(), original.getValue()));
}
protected void saveLoreTag(CompoundTag displayTag, ListTag original) {
displayTag.put(new ListTag(nbtTagName + "|o" + original.getName(), original.getValue()));
}
protected void restoreDisplayTag(Item item) {
if (item.getTag() == null) return;
CompoundTag display = item.getTag().get("display");
if (display != null) {
// Remove custom name / restore original name
if (display.remove(nbtTagName + "|customName") != null) {
display.remove("Name");
} else {
restoreDisplayTag(display, "Name");
}
// Restore lore
restoreDisplayTag(display, "Lore");
}
if (item.getData() != 0) {
tag.put(new ShortTag("data", item.getData()));
}
private void restoreDisplayTag(CompoundTag displayTag, String tagName) {
StringTag original = displayTag.remove(nbtTagName + "|o" + tagName);
if (original != null) {
displayTag.put(original);
}
if (item.getTag() != null) {
tag.put(CONVERTER.convert("extras", CONVERTER.convert(item.getTag())));
}
return tag;
}
}

26
core/src/main/java/nl/matsv/viabackwards/api/rewriters/LegacyBlockItemRewriter.java
View File

@ -27,6 +27,7 @@ import us.myles.viaversion.libs.fastutil.ints.Int2ObjectOpenHashMap;
import us.myles.viaversion.libs.gson.JsonElement;
import us.myles.viaversion.libs.gson.JsonObject;
import us.myles.viaversion.libs.gson.JsonPrimitive;
import us.myles.viaversion.libs.opennbt.tag.builtin.ByteTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.CompoundTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.IntTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.StringTag;
@ -98,14 +99,7 @@ public abstract class LegacyBlockItemRewriter<T extends BackwardsProtocol> exten
return super.handleItemToClient(item);
}
if (item.getTag() == null) {
item.setTag(new CompoundTag(""));
}
// Backup data for toServer
short originalData = item.getData();
item.getTag().put(createViaNBT(item));
item.setIdentifier(data.getId());
// Keep original data if mapped data is set to -1
if (data.getData() != -1) {
@ -114,19 +108,25 @@ public abstract class LegacyBlockItemRewriter<T extends BackwardsProtocol> exten
// Set display name
if (data.getName() != null) {
CompoundTag tag = item.getTag().get("display");
if (tag == null) {
item.getTag().put(tag = new CompoundTag("display"));
if (item.getTag() == null) {
item.setTag(new CompoundTag(""));
}
StringTag nameTag = tag.get("Name");
CompoundTag display = item.getTag().get("display");
if (display == null) {
item.getTag().put(display = new CompoundTag("display"));
}
StringTag nameTag = display.get("Name");
if (nameTag == null) {
tag.put(nameTag = new StringTag("Name", data.getName()));
display.put(nameTag = new StringTag("Name", data.getName()));
display.put(new ByteTag(nbtTagName + "|customName"));
}
// Handle colors
String value = nameTag.getValue();
if (value.contains("%vb_color%")) {
tag.put(new StringTag("Name", value.replace("%vb_color%", BlockColors.get(originalData))));
display.put(new StringTag("Name", value.replace("%vb_color%", BlockColors.get(originalData))));
}
}
return item;

8
core/src/main/java/nl/matsv/viabackwards/protocol/protocol1_12_2to1_13/packets/BlockItemPackets1_13.java
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@ -592,8 +592,8 @@ public class BlockItemPackets1_13 extends nl.matsv.viabackwards.api.rewriters.It
if (display != null) {
StringTag name = display.get("Name");
if (name instanceof StringTag) {
StringTag via = display.remove(extraNbtTag + "|Name");
name.setValue(via != null ? via.getValue() : ChatRewriter.jsonTextToLegacy(name.getValue()));
display.put(new StringTag(extraNbtTag + "|Name", name.getValue()));
name.setValue(ChatRewriter.jsonTextToLegacy(name.getValue()));
}
}
@ -788,8 +788,8 @@ public class BlockItemPackets1_13 extends nl.matsv.viabackwards.api.rewriters.It
CompoundTag displayTag = (CompoundTag) display;
StringTag name = displayTag.get("Name");
if (name instanceof StringTag) {
displayTag.put(new StringTag(extraNbtTag + "|Name", name.getValue()));
name.setValue(ChatRewriter.legacyTextToJson(name.getValue()).toString());
StringTag via = displayTag.remove(extraNbtTag + "|Name");
name.setValue(via != null ? via.getValue() : ChatRewriter.legacyTextToJson(name.getValue()).toString());
}
}