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Merge pull request #442 from sk89q/feature/fuzzier-fuzzies

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Refactor the Fuzzy system to be immutable
This commit is contained in:
Matthew Miller 2018-12-28 15:05:56 +10:00 committed by GitHub
commit 59f78b3cdf
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5 changed files with 160 additions and 35 deletions
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7
worldedit-core/src/main/java/com/sk89q/worldedit/extension/factory/parser/DefaultBlockParser.java
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@ -43,6 +43,7 @@ import com.sk89q.worldedit.world.block.BaseBlock;
import com.sk89q.worldedit.world.block.BlockState;
import com.sk89q.worldedit.world.block.BlockType;
import com.sk89q.worldedit.world.block.BlockTypes;
import com.sk89q.worldedit.world.block.FuzzyBlockState;
import com.sk89q.worldedit.world.registry.LegacyMapper;
import java.util.HashMap;
@ -268,12 +269,14 @@ public class DefaultBlockParser extends InputParser<BaseBlock> {
// No wildcards allowed => eliminate them. (Start with default state)
state = blockType.getDefaultState();
} else {
state = blockType.getDefaultState().toFuzzy();
FuzzyBlockState.Builder fuzzyBuilder = FuzzyBlockState.builder();
fuzzyBuilder.type(blockType);
for (Map.Entry<Property<?>, Object> blockState : blockStates.entrySet()) {
@SuppressWarnings("unchecked")
Property<Object> objProp = (Property<Object>) blockState.getKey();
state = state.with(objProp, blockState.getValue());
fuzzyBuilder.withProperty(objProp, blockState.getValue());
}
state = fuzzyBuilder.build();
}
state = applyProperties(state, stateProperties);

4
worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BaseBlock.java
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@ -142,7 +142,7 @@ public class BaseBlock implements BlockStateHolder<BaseBlock>, TileEntityBlock {
final BaseBlock otherBlock = (BaseBlock) o;
return this.toImmutableState().equalsFuzzy(otherBlock.toImmutableState()) && Objects.equals(getNbtData(), otherBlock.getNbtData());
return this.blockState.equalsFuzzy(otherBlock.blockState) && Objects.equals(getNbtData(), otherBlock.getNbtData());
}
/**
@ -153,7 +153,7 @@ public class BaseBlock implements BlockStateHolder<BaseBlock>, TileEntityBlock {
*/
@Override
public boolean equalsFuzzy(BlockStateHolder<?> o) {
return this.toImmutableState().equalsFuzzy(o);
return this.blockState.equalsFuzzy(o);
}
@Override

35
worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockState.java
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@ -30,7 +30,6 @@ import com.sk89q.worldedit.registry.state.Property;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.List;
@ -46,30 +45,16 @@ public class BlockState implements BlockStateHolder<BlockState> {
private final BlockType blockType;
private final Map<Property<?>, Object> values;
private final boolean fuzzy;
private BaseBlock emptyBaseBlock;
// Neighbouring state table.
private Table<Property<?>, Object, BlockState> states;
private BlockState(BlockType blockType) {
BlockState(BlockType blockType) {
this.blockType = blockType;
this.values = new LinkedHashMap<>();
this.emptyBaseBlock = new BaseBlock(this);
this.fuzzy = false;
}
/**
* Creates a fuzzy BlockState. This can be used for partial matching.
*
* @param blockType The block type
* @param values The block state values
*/
private BlockState(BlockType blockType, Map<Property<?>, Object> values) {
this.blockType = blockType;
this.values = values;
this.fuzzy = true;
}
static Map<Map<Property<?>, Object>, BlockState> generateStateMap(BlockType blockType) {
@ -144,12 +129,7 @@ public class BlockState implements BlockStateHolder<BlockState> {
@Override
public <V> BlockState with(final Property<V> property, final V value) {
if (fuzzy) {
return setState(property, value);
} else {
BlockState result = states.get(property, value);
return result == null ? this : result;
}
return states.row(property).getOrDefault(value, this);
}
@Override
@ -162,10 +142,6 @@ public class BlockState implements BlockStateHolder<BlockState> {
return Collections.unmodifiableMap(this.values);
}
public BlockState toFuzzy() {
return new BlockState(this.getBlockType(), new HashMap<>());
}
@Override
public boolean equalsFuzzy(BlockStateHolder<?> o) {
if (this == o) {
@ -207,9 +183,6 @@ public class BlockState implements BlockStateHolder<BlockState> {
@Override
public BaseBlock toBaseBlock() {
if (this.fuzzy) {
throw new IllegalArgumentException("Can't create a BaseBlock from a fuzzy BlockState!");
}
return this.emptyBaseBlock;
}
@ -230,7 +203,7 @@ public class BlockState implements BlockStateHolder<BlockState> {
* @param value The value
* @return The blockstate, for chaining
*/
private BlockState setState(final Property<?> property, final Object value) {
BlockState setState(final Property<?> property, final Object value) {
this.values.put(property, value);
return this;
}
@ -251,6 +224,6 @@ public class BlockState implements BlockStateHolder<BlockState> {
@Override
public int hashCode() {
return Objects.hash(blockType, values, fuzzy);
return Objects.hash(blockType, values);
}
}

5
worldedit-core/src/main/java/com/sk89q/worldedit/world/block/BlockType.java
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@ -48,6 +48,7 @@ public class BlockType {
private final String id;
private final Function<BlockState, BlockState> values;
private final AtomicReference<BlockState> defaultState = new AtomicReference<>();
private final AtomicReference<FuzzyBlockState> emptyFuzzy = new AtomicReference<>();
private final AtomicReference<Map<String, ? extends Property<?>>> properties = new AtomicReference<>();
private final AtomicReference<BlockMaterial> blockMaterial = new AtomicReference<>();
private final AtomicReference<Map<Map<Property<?>, Object>, BlockState>> blockStatesMap = new AtomicReference<>();
@ -156,6 +157,10 @@ public class BlockType {
});
}
public FuzzyBlockState getFuzzyMatcher() {
return updateField(emptyFuzzy, () -> new FuzzyBlockState(this));
}
/**
* Gets a list of all possible states for this BlockType.
*

144
worldedit-core/src/main/java/com/sk89q/worldedit/world/block/FuzzyBlockState.java Normal file
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@ -0,0 +1,144 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.world.block;
import static com.google.common.base.Preconditions.checkNotNull;
import com.sk89q.worldedit.registry.state.Property;
import java.util.HashMap;
import java.util.Map;
/**
* A Fuzzy BlockState. Used for partial matching.
*
* Immutable, construct with {@link FuzzyBlockState.Builder}.
*/
public class FuzzyBlockState extends BlockState {
FuzzyBlockState(BlockType blockType) {
super(blockType);
}
private FuzzyBlockState(BlockType blockType, Map<Property<?>, Object> values) {
this(blockType);
for (Map.Entry<Property<?>, Object> entry : values.entrySet()) {
setState(entry.getKey(), entry.getValue());
}
}
/**
* Gets a full BlockState from this fuzzy one, filling in
* properties with default values where necessary.
*
* @return The full BlockState
*/
public BlockState getFullState() {
BlockState state = getBlockType().getDefaultState();
for (Map.Entry<Property<?>, Object> entry : getStates().entrySet()) {
@SuppressWarnings("unchecked")
Property<Object> objKey = (Property<Object>) entry.getKey();
state = state.with(objKey, entry.getValue());
}
return getBlockType().getDefaultState();
}
/**
* Gets an instance of a builder.
*
* @return The builder
*/
public static Builder builder() {
return new Builder();
}
/**
* Builder for FuzzyBlockState
*/
public static class Builder {
private BlockType type;
private Map<Property<?>, Object> values = new HashMap<>();
/**
* The type of the Fuzzy BlockState
*
* @param type The type
* @return The builder, for chaining
*/
public Builder type(BlockType type) {
checkNotNull(type);
this.type = type;
return this;
}
/**
* The type of the Fuzzy BlockState
*
* @param state The state
* @return The builder, for chaining
*/
public Builder type(BlockState state) {
checkNotNull(state);
this.type = state.getBlockType();
return this;
}
/**
* Adds a property to the fuzzy BlockState
*
* @param property The property
* @param value The value
* @param <V> The property type
* @return The builder, for chaining
*/
public <V> Builder withProperty(Property<V> property, V value) {
checkNotNull(property);
checkNotNull(value);
checkNotNull(type, "The type must be set before the properties!");
type.getProperty(property.getName()); // Verify the property is valid for this type
values.put(property, value);
return this;
}
/**
* Builds a FuzzyBlockState from this builder.
*
* @return The fuzzy BlockState
*/
public FuzzyBlockState build() {
checkNotNull(type);
if (values.isEmpty()) {
return type.getFuzzyMatcher();
}
return new FuzzyBlockState(type, values);
}
/**
* Resets the builder.
*
* @return The builder, for chaining
*/
public Builder reset() {
this.type = null;
this.values.clear();
return this;
}
}
}