ViaBackwards/common/src/main/java/nl/matsv/viabackwards/api/rewriters/LegacyBlockItemRewriter.java

304 lines
11 KiB
Java

/*
* This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
* Copyright (C) 2016-2021 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package nl.matsv.viabackwards.api.rewriters;
import nl.matsv.viabackwards.api.BackwardsProtocol;
import nl.matsv.viabackwards.api.data.MappedLegacyBlockItem;
import nl.matsv.viabackwards.api.data.VBMappingDataLoader;
import nl.matsv.viabackwards.protocol.protocol1_11_1to1_12.data.BlockColors;
import nl.matsv.viabackwards.utils.Block;
import org.jetbrains.annotations.Nullable;
import us.myles.ViaVersion.api.minecraft.chunks.Chunk;
import us.myles.ViaVersion.api.minecraft.chunks.ChunkSection;
import us.myles.ViaVersion.api.minecraft.item.Item;
import us.myles.ViaVersion.protocols.protocol1_13to1_12_2.ChatRewriter;
import us.myles.viaversion.libs.fastutil.ints.Int2ObjectMap;
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.NumberTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.StringTag;
import us.myles.viaversion.libs.opennbt.tag.builtin.Tag;
import java.util.HashMap;
import java.util.Map;
public abstract class LegacyBlockItemRewriter<T extends BackwardsProtocol> extends ItemRewriterBase<T> {
private static final Map<String, Int2ObjectMap<MappedLegacyBlockItem>> LEGACY_MAPPINGS = new HashMap<>();
protected final Int2ObjectMap<MappedLegacyBlockItem> replacementData;
static {
JsonObject jsonObject = VBMappingDataLoader.loadFromDataDir("legacy-mappings.json");
for (Map.Entry<String, JsonElement> entry : jsonObject.entrySet()) {
Int2ObjectMap<MappedLegacyBlockItem> mappings = new Int2ObjectOpenHashMap<>(8);
LEGACY_MAPPINGS.put(entry.getKey(), mappings);
for (Map.Entry<String, JsonElement> dataEntry : entry.getValue().getAsJsonObject().entrySet()) {
JsonObject object = dataEntry.getValue().getAsJsonObject();
int id = object.getAsJsonPrimitive("id").getAsInt();
JsonPrimitive jsonData = object.getAsJsonPrimitive("data");
short data = jsonData != null ? jsonData.getAsShort() : 0;
String name = object.getAsJsonPrimitive("name").getAsString();
JsonPrimitive blockField = object.getAsJsonPrimitive("block");
boolean block = blockField != null && blockField.getAsBoolean();
if (dataEntry.getKey().indexOf('-') != -1) {
// Range of ids
String[] split = dataEntry.getKey().split("-", 2);
int from = Integer.parseInt(split[0]);
int to = Integer.parseInt(split[1]);
// Special block color handling
if (name.contains("%color%")) {
for (int i = from; i <= to; i++) {
mappings.put(i, new MappedLegacyBlockItem(id, data, name.replace("%color%", BlockColors.get(i - from)), block));
}
} else {
MappedLegacyBlockItem mappedBlockItem = new MappedLegacyBlockItem(id, data, name, block);
for (int i = from; i <= to; i++) {
mappings.put(i, mappedBlockItem);
}
}
} else {
mappings.put(Integer.parseInt(dataEntry.getKey()), new MappedLegacyBlockItem(id, data, name, block));
}
}
}
}
protected LegacyBlockItemRewriter(T protocol) {
super(protocol, false);
replacementData = LEGACY_MAPPINGS.get(protocol.getClass().getSimpleName().split("To")[1].replace("_", "."));
}
@Override
@Nullable
public Item handleItemToClient(Item item) {
if (item == null) return null;
MappedLegacyBlockItem data = replacementData.get(item.getIdentifier());
if (data == null) {
// Just rewrite the id
return super.handleItemToClient(item);
}
short originalData = item.getData();
item.setIdentifier(data.getId());
// Keep original data if mapped data is set to -1
if (data.getData() != -1) {
item.setData(data.getData());
}
// Set display name
if (data.getName() != null) {
if (item.getTag() == null) {
item.setTag(new CompoundTag());
}
CompoundTag display = item.getTag().get("display");
if (display == null) {
item.getTag().put("display", display = new CompoundTag());
}
StringTag nameTag = display.get("Name");
if (nameTag == null) {
display.put("Name", nameTag = new StringTag(data.getName()));
display.put(nbtTagName + "|customName", new ByteTag());
}
// Handle colors
String value = nameTag.getValue();
if (value.contains("%vb_color%")) {
display.put("Name", new StringTag(value.replace("%vb_color%", BlockColors.get(originalData))));
}
}
return item;
}
public int handleBlockID(int idx) {
int type = idx >> 4;
int meta = idx & 15;
Block b = handleBlock(type, meta);
if (b == null) return idx;
return (b.getId() << 4 | (b.getData() & 15));
}
@Nullable
public Block handleBlock(int blockId, int data) {
MappedLegacyBlockItem settings = replacementData.get(blockId);
if (settings == null || !settings.isBlock()) return null;
Block block = settings.getBlock();
// For some blocks, the data can still be useful (:
if (block.getData() == -1) {
return block.withData(data);
}
return block;
}
protected void handleChunk(Chunk chunk) {
// Map Block Entities
Map<Pos, CompoundTag> tags = new HashMap<>();
for (CompoundTag tag : chunk.getBlockEntities()) {
Tag xTag;
Tag yTag;
Tag zTag;
if ((xTag = tag.get("x")) == null || (yTag = tag.get("y")) == null || (zTag = tag.get("z")) == null) {
continue;
}
Pos pos = new Pos(
((NumberTag) xTag).asInt() & 0xF,
((NumberTag) yTag).asInt(),
((NumberTag) zTag).asInt() & 0xF);
tags.put(pos, tag);
// Handle given Block Entities
ChunkSection section = chunk.getSections()[pos.getY() >> 4];
if (section == null) continue;
int block = section.getFlatBlock(pos.getX(), pos.getY() & 0xF, pos.getZ());
int btype = block >> 4;
MappedLegacyBlockItem settings = replacementData.get(btype);
if (settings != null && settings.hasBlockEntityHandler()) {
settings.getBlockEntityHandler().handleOrNewCompoundTag(block, tag);
}
}
for (int i = 0; i < chunk.getSections().length; i++) {
ChunkSection section = chunk.getSections()[i];
if (section == null) continue;
boolean hasBlockEntityHandler = false;
// Map blocks
for (int j = 0; j < section.getPaletteSize(); j++) {
int block = section.getPaletteEntry(j);
int btype = block >> 4;
int meta = block & 0xF;
Block b = handleBlock(btype, meta);
if (b != null) {
section.setPaletteEntry(j, (b.getId() << 4) | (b.getData() & 0xF));
}
// We already know that is has a handler
if (hasBlockEntityHandler) continue;
MappedLegacyBlockItem settings = replacementData.get(btype);
if (settings != null && settings.hasBlockEntityHandler()) {
hasBlockEntityHandler = true;
}
}
if (!hasBlockEntityHandler) continue;
// We need to handle a Block Entity :(
for (int x = 0; x < 16; x++) {
for (int y = 0; y < 16; y++) {
for (int z = 0; z < 16; z++) {
int block = section.getFlatBlock(x, y, z);
int btype = block >> 4;
int meta = block & 15;
MappedLegacyBlockItem settings = replacementData.get(btype);
if (settings == null || !settings.hasBlockEntityHandler()) continue;
Pos pos = new Pos(x, (y + (i << 4)), z);
// Already handled above
if (tags.containsKey(pos)) continue;
CompoundTag tag = new CompoundTag();
tag.put("x", new IntTag(x + (chunk.getX() << 4)));
tag.put("y", new IntTag(y + (i << 4)));
tag.put("z", new IntTag(z + (chunk.getZ() << 4)));
settings.getBlockEntityHandler().handleOrNewCompoundTag(block, tag);
chunk.getBlockEntities().add(tag);
}
}
}
}
}
protected CompoundTag getNamedTag(String text) {
CompoundTag tag = new CompoundTag();
tag.put("display", new CompoundTag());
text = "§r" + text;
((CompoundTag) tag.get("display")).put("Name", new StringTag(jsonNameFormat ? ChatRewriter.legacyTextToJsonString(text) : text));
return tag;
}
private static final class Pos {
private final int x;
private final short y;
private final int z;
private Pos(int x, int y, int z) {
this.x = x;
this.y = (short) y;
this.z = z;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public int getZ() {
return z;
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
Pos pos = (Pos) o;
if (x != pos.x) return false;
if (y != pos.y) return false;
return z == pos.z;
}
@Override
public int hashCode() {
int result = x;
result = 31 * result + y;
result = 31 * result + z;
return result;
}
@Override
public String toString() {
return "Pos{" + "x=" + x + ", y=" + y + ", z=" + z + '}';
}
}
}