BlueMap/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/mca/mapping/BlockPropertyMapper.java

104 lines
3.8 KiB
Java

/*
* This file is part of BlueMap, licensed under the MIT License (MIT).
*
* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
* Copyright (c) contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package de.bluecolored.bluemap.core.mca.mapping;
import java.io.IOException;
import java.util.Map.Entry;
import java.util.concurrent.ExecutionException;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
import com.google.common.collect.Multimaps;
import de.bluecolored.bluemap.core.world.BlockState;
import ninja.leaping.configurate.ConfigurationNode;
import ninja.leaping.configurate.gson.GsonConfigurationLoader;
public class BlockPropertyMapper {
private static final BlockProperties DEFAULT_PROPERTIES = new BlockProperties(false, false, false);
private Multimap<String, BlockStateMapping<BlockProperties>> mappings;
private LoadingCache<BlockState, BlockProperties> mappingCache;
private BlockPropertyMapper() throws IOException {
mappings = HashMultimap.create();
GsonConfigurationLoader loader = GsonConfigurationLoader.builder()
.setURL(getClass().getResource("/blockProperties.json"))
.build();
ConfigurationNode node = loader.load();
for (Entry<Object, ? extends ConfigurationNode> e : node.getChildrenMap().entrySet()){
String key = e.getKey().toString();
BlockState bsKey = BlockState.fromString(key);
BlockProperties bsValue = new BlockProperties(
e.getValue().getNode("culling").getBoolean(false),
e.getValue().getNode("occluding").getBoolean(false),
e.getValue().getNode("flammable").getBoolean(false)
);
BlockStateMapping<BlockProperties> mapping = new BlockStateMapping<>(bsKey, bsValue);
mappings.put(bsKey.getId(), mapping);
}
mappings = Multimaps.unmodifiableMultimap(mappings);
mappingCache = CacheBuilder.newBuilder()
.concurrencyLevel(8)
.maximumSize(10000)
.build(new CacheLoader<BlockState, BlockProperties>(){
@Override public BlockProperties load(BlockState key) { return mapNoCache(key); }
});
}
public BlockProperties map(BlockState from){
try {
return mappingCache.get(from);
} catch (ExecutionException e) {
//should never happen, since the CacheLoader does not throw any exceptions
throw new RuntimeException("Unexpected error while trying to map a BlockState's properties", e.getCause());
}
}
private BlockProperties mapNoCache(BlockState bs){
for (BlockStateMapping<BlockProperties> bm : mappings.get(bs.getId())){
if (bm.fitsTo(bs)){
return bm.getMapping();
}
}
return DEFAULT_PROPERTIES;
}
public static BlockPropertyMapper create() throws IOException {
return new BlockPropertyMapper();
}
}